Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
2026-05-12; Municipal Water District; Resolution 1804
Exhibit 1 RESOLUTION NO. 1804 . A RESOLUTION OF THE BOARD OF DIRECTORS OF THE CARLSBAD MUNICIPAL WATER DISTRICT, ADOPTING THE 2025 URBAN WATER MANAGEMENT PLAN AND THE WATER SHORTAGE CONTINGENCY PLAN AND AUTHORIZING SUBMITTAL TO THE CALIFORNIA DEPARTMENT OF WATER RESOURCES WHEREAS, the 2025 Urban Water Management Plan has been prepared by the Carlsbad Municipal Water District, or CMWD, in conformance with the Urban Water Management Planning Act contained in California Water Code Section 10610 et. seq.; and WHEREAS, Water Code Section 10632 requires the CMWD to prepare and adopt a Water Shortage Contingency Plan as part of its Urban Water Management Plan; and WHEREAS, the CMWD’s Water Shortage Contingency Plan is a portion of the 2025 Urban Water Management Plan and functions as a stand-alone document that can be amended as needed without amending the Urban Water Management Plan; and WHEREAS, on March 9, 2026, in conformance with the California Water Code Section 10621, the CMWD mailed a 60-day public hearing notification letter to all city and county agencies to which the CMWD provides water supplies; and WHEREAS, Section 10642 of the California Water Code requires that prior to adopting an Urban Water Management Plan and/or a Water Shortage Contingency Plan, an urban water supplier shall make the plans available for public inspection and hold a public hearing to receive public comment regarding the plan(s); and WHEREAS, on March 11, 2026, the CMWD made copies of the Urban Water Management Plan, including the Water Shortage Contingency Plan, available for review on the City of Carlsbad's website at carlsbadca.gov; and WHEREAS, a notice of public hearing was published via a newspaper ad on April 28, 2026, and May 5, 2026; and WHEREAS, a public hearing was held on May 12, 2026, to receive public comment regarding the 2025 Urban Water Management Plan, including the Water Shortage Contingency Plan. NOW, THEREFORE, BE IT RESOLVED by the Carlsbad Municipal Water District Board of Directors of the City of Carlsbad, California, as follows: 1.That the above recitations are true and correct. May 12, 2026 Item #10 Page 7 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2.That the CMWD Board has determined that the proposed action is not a “project” as defined by California Environmental Quality Act, or CEQA, Section 21065 and CEQA Guidelines Section 15378(a) and does not require environmental review under CEQA Guidelines Section 15282(v) because it involves the preparation and adoption of the Urban Water Management Plan and Water Shortage Contingency Plan pursuant to the provision of Section 10652 of the Water Code. 3.That the Board adopts the 2025 Urban Water Management Plan and the Water Shortage Contingency Plan, attached hereto as Attachment A, and authorizes the Executive Manager or designee to submit them to the California Department of Water Resources. PASSED, APPROVED AND ADOPTED at a Special Meeting of the Board of Directors of the Carlsbad Municipal Water District of the City of Carlsbad on the 12th day of May, 2026, by the following vote, to wit: AYES: Blackburn, Bhat-Patel, Acosta, Burkholder, Shin. NAYS: None. ABSTAIN None. ABSENT: None. __________________________________ KEITH BLACKBURN, President __________________________________ SHERRY FREISINGER, Secretary (SEAL) May 12, 2026 Item #10 Page 8 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan Update Attachment A May 12, 2026 Item #10 Page 9 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2025 Urban Water Management Plan Prepared by: Carlsbad Municipal Water District 5950 El Camino Real Carlsbad, CA 92008 www.carlsbadca.gov With assistance from: Woodard & Curran 9665 Chesapeake Drive Suite 320 San Diego, CA 92123 May 2026 May 12, 2026 Item #10 Page 10 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents i TABLE OF CONTENTS SECTION PAGE NO. EXECUTIVE SUMMARY .................................................................................................ES-1 1.INTRODUCTION AND OVERVIEW ....................................................................... 1-1 1.1 Background and Purpose ............................................................................................ 1-11.2 California Urban Water Management Planning Act .......................................... 1-11.3 Relation to Other Planning Efforts ........................................................................... 1-21.4 Lay Description ............................................................................................................... 1-41.5 Organization of the Urban Water Management Plan ...................................... 1-4 2.PLAN PREPARATION ............................................................................................ 2-1 2.1 Plan Preparation and Implementation ................................................................... 2-12.2 Coordination and Outreach ....................................................................................... 2-22.3 Public Participation ....................................................................................................... 2-42.4 Plan Organization .......................................................................................................... 2-5 3.SYSTEM DESCRIPTION .......................................................................................... 3-1 3.1 Description of Service Area ........................................................................................ 3-13.1.1 Agency Organizational Structure ................................................................... 3-23.1.2 Service Area Climate ........................................................................................... 3-43.1.3 Land Uses Within the Service Area ................................................................ 3-53.1.4 Population and Demographics ....................................................................... 3-63.3 Description of Water System ................................................................................... 3-113.4 Water System Background ....................................................................................... 3-123.5 Climate Change ............................................................................................................ 3-163.5.1 Climate Action Plan and Energy ................................................................... 3-163.5.2 Climate Change Vulnerability Analysis....................................................... 3-17 4.WATER USE ............................................................................................................ 4-1 4.1 Past and Current Water Use ....................................................................................... 4-14.1.1 Single-Family Residential and Multi-Family Residential ........................ 4-24.1.2 Agricultural ............................................................................................................. 4-24.1.3 Commercial/ Industrial/ Institutional/ Government ................................ 4-44.1.4 Tourism and Temporary Residents................................................................ 4-44.1.5 Landscape ............................................................................................................... 4-54.1.6 Additional Water Uses ....................................................................................... 4-64.1.7 Sales to Other Agencies .................................................................................... 4-6 May 12, 2026 Item #10 Page 11 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents ii 4.1.8 Distribution System Losses .............................................................................. 4-74.2 Projected Water Use ................................................................................................... 4-104.2.1 Climate Change Effects on Water Use ....................................................... 4-124.2.2 Future Conservation Savings ......................................................................... 4-124.2.3 Water Use for Lower Income Households ................................................ 4-144.2.4 Projected Total Water Use and Demand Provided to Wholesaler ... 4-15 5.SB X7-7 TARGETS AND REPORTING ................................................................... 5-1 5.1 Overview ........................................................................................................................... 5-15.2 Water Use and Compliance ........................................................................................ 5-2 6.WATER SUPPLY ..................................................................................................... 6-1 6.1 Water Supply Characterization ................................................................................. 6-16.2 Purchased or Imported Water ................................................................................... 6-36.2.1 Metropolitan Water District of Southern California (MWD) ................ 6-36.2.2 San Diego County Water Authority (SDCWA) ........................................... 6-36.3 Desalinated Water ......................................................................................................... 6-46.4 Wastewater and Recycled Water ............................................................................. 6-56.4.1 Recycled Water Coordination ......................................................................... 6-66.4.2 Wastewater Treatment and Collection Facilities ...................................... 6-66.4.3 Recycled Water Master Plan .......................................................................... 6-116.4.4 Recycled Water Use .......................................................................................... 6-116.4.5 Potential and Projected Recycled Water Use .......................................... 6-146.4.6 Methods to Encourage Recycled Water Use ........................................... 6-146.5 Local Groundwater and Local Surface Water .................................................... 6-156.6 Supply from Storage ................................................................................................... 6-186.7 Stormwater ..................................................................................................................... 6-196.8 Exchanges and Transfers ........................................................................................... 6-196.9 Projected Water Projects ........................................................................................... 6-196.9.1 Summary of Existing and Planned Sources of Water ........................... 6-236.10 Special Considerations ............................................................................................... 6-256.10.1 Climate Change Impacts ................................................................................. 6-256.10.2 Regulatory Conditions ..................................................................................... 6-256.10.3 Other Locally Applicable Criteria .................................................................. 6-266.11 Energy Intensity ............................................................................................................ 6-27 7.WATER SUPPLY RELIABILITY AND DROUGHT RISK ASSESSMENT ................. 7-1 7.1 Constraints on Water Resources .............................................................................. 7-17.1.1 SDCWA Supply Constraints and Reliability Actions ................................ 7-27.1.2 CMWD Local Supply Constraints and Reliability Actions ...................... 7-3 May 12, 2026 Item #10 Page 12 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents iii 7.2 Water Service Reliability Assessment ..................................................................... 7-57.2.1 Year Type Characterization .............................................................................. 7-57.2.1.1 Water Service Reliability – Normal Year .......................................... 7-67.2.1.2 Water Service Reliability – Single Dry Year .................................... 7-87.2.1.3 Water Service Reliability – Five Consecutive Dry Years ............. 7-97.2.2 Management Tools and Options ................................................................. 7-117.3 Drought Risk Assessment ......................................................................................... 7-127.3.1 Data and Methodology ................................................................................... 7-127.3.2 Determination of Reliability ........................................................................... 7-13 8.WATER SHORTAGE CONTINGENCY PLAN ......................................................... 8-1 8.1 Water Supply Reliability Analysis ............................................................................. 8-18.1.1 Legal Authorities .................................................................................................. 8-28.1.2 Plan Adoption, Submittal and Availability .................................................. 8-28.2 Annual Water Supply and Demand Assessment Procedures ........................ 8-28.2.1 Decision-Making Process .................................................................................. 8-38.2.2 Water Supply Projection: Data Inputs and Methodology ..................... 8-48.2.3 Planned Water Use for Current Year and Subsequent Dry Year: Data Inputs and Methodology .................................................................................. 8-48.2.4 Infrastructure Considerations: Data Inputs and Methodology ........... 8-58.2.5 Evaluation Criteria: Data Inputs and Methodology ................................. 8-58.3 Six Standard Water Shortage Stages and Shortage Response Actions ..... 8-68.4 Catastrophic Supply Interruption ........................................................................... 8-128.4.1 Seismic Risk Assessment and Mitigation Plan ........................................ 8-128.4.2 CMWD Emergency Storage of Water Policy ............................................ 8-138.5 Communication Protocols ........................................................................................ 8-148.5.1 Coordination ........................................................................................................ 8-148.5.2 Communication Objectives ............................................................................ 8-158.5.3 Communication Protocol for Current Predicted Shortage ................. 8-158.5.4 Communication Protocol for Triggered or Anticipated to be Triggered Shortage Response Action ............................................................................. 8-178.5.5 Catastrophic Communications ...................................................................... 8-178.6 Compliance and Enforcement ................................................................................. 8-178.7 WSCP Revenue and Expenditure Impacts ........................................................... 8-188.8 WSCP Monitoring and Reporting .......................................................................... 8-208.9 WSCP Refinement Procedures ................................................................................ 8-228.10 Special Water Feature Distinction .......................................................................... 8-228.11 Determination of Reliability ..................................................................................... 8-23 May 12, 2026 Item #10 Page 13 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents iv 9.DEMAND MANAGEMENT MEASURES ................................................................ 9-1 9.1 Current Demand Management Measures ............................................................ 9-19.1.1 Water Waste Prevention Ordinances............................................................ 9-19.1.2 Metering .................................................................................................................. 9-29.1.3 Conservation Pricing ........................................................................................... 9-29.1.4 Public Education and Outreach ...................................................................... 9-39.1.5 Programs to Assess and Manage Distribution System Real Loss ...... 9-89.1.6 Water Conservation Program Coordination and Staffing Support ... 9-89.2 DMM Activity ................................................................................................................... 9-89.3 Future DMM Implementation ................................................................................... 9-9 10.PLAN ADOPTION, SUBMITTAL, AND IMPLEMENTATION ............................. 10-1 10.1 Plan Review and Notification Process .................................................................. 10-110.2 Plan Adoption and Submittal Process .................................................................. 10-210.3 Plan Implementation .................................................................................................. 10-210.4 WSCP Adoption, Submittal and Availability ....................................................... 10-2 11.REFERENCES ......................................................................................................... 11-1 May 12, 2026 Item #10 Page 14 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents v TABLES Table ES-1:Organizational Overview of the 2025 UWMPTable ES-2:Summary of Current and Projected Supplies (AFY)Tab le ES-3:SBx7-7 Baselines and Targets for CMWDTable ES-4:Summary of Projected DemandsTable 2-1:Public Water SystemTable 2-2:Plan IdentificationTable 2-3:Supplier IdentificationTable 2-4:Water Supplier Information ExchangeTable 2-5:Coordination with AgenciesTable 3-1:Land Use Classification Within the City of CarlsbadTable 3-2:CMWD’s Service Area Population – Current and ProjectedTable 3-3:CMWD Growth Population ComparisonTable 3-4:Wastewater and Water GHG Reduction MeasuresTable 3-5:Potential Impacts of Climate Change in CarlsbadTable 3-6:Prioritized Climate Change Vulnerability Issues for CarlsbadTable 3-7:Existing Programs, Plans, and PoliciesTable 4-1:Historical and Current Water Use (AFY) (2005-2025)Tab le 4-2:2025Actual Total Uses for Potable and Non-Potable Water (AFY)Tab le 4-3:Reported Water Loss (2020 – 2025)Tab le 4-4:Retail Water Loss Audit ReportingTable 4-5:Progress Toward 2028 Water Loss StandardTable 4-6:Growth Rate Calculations for Each Customer ClassTable 4-7:Inclusion in Water Use ProjectionsTable 4-8:Total Uses of Potable and Non-Potable Water - Projected (2030 – 2050)Tab le 4-9:Total Projected Water Demands on Wholesaler (AF)Tab le 5-1:SB x7-7 2020 Target ProgressTable 6-1:Summary of Historical, Existing, and Planned Water Supplies (AFY)Tab le 6-2:Source Water DesalInationTable 6-3:Wastewater Collected Within CMWD Water Service Area in 2025Table 6-4:Wastewater Treatment and Discharge within CMWD Water Service Area in 2025Table 6-5:Current and Projected Recycled Water Direct Beneficial Uses within Service Area 2025-2050Table 6-6:2020 Recycled Water Use Projection Compared to 2025 Actual (AFY)Tab le 6-7:Groundwater Basins in the Vicinity of CMWDTable 6-8:Expected Future Water Supply Projects or ProgramsTable 6-9:Water Supplies – ActualTable 6-10:Water Supplies – Projected May 12, 2026 Item #10 Page 15 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents vi Table 7-1:Constraints on Water SuppliesTable 7-2:Basis of Water Year Data (Water Service Reliability Assessment)Tab le 7-3:Supply and Demand Assumptions, as Percent of NormalTable 7-4:Normal Water Year Supply and Use ComparisonTable 7-5:Single Dry Year Supply and Demand ComparisonTable 7-6:Multiple Dry Years Supply and Demand ComparisonTable 7-7:Five-Year Drought Risk Assessment TablesTable 8-1:Supply Source Availability Evaluation MethodologyTable 8-2:Water Shortage Contingency Plan LevelsTable 8-3:Supply Augmentation and Other ActionsTable 8-4:Demand Reduction ActionsTable 8-5:CMWD Penalties for Use Restriction ViolationsTable 8-6:Impacts to Revenues and Methods to Address ImpactTable 8-7:Impacts to Expenditures and Methods to Address ImpactsTable 8-8:Methods for Measuring Water Use ReductionsTable 9-1:Drought Response LevelsTable 9-2:2026 Residential Customer Billing Rates for Potable WaterTable 9-3:2026 Commercial Customer Billing Rates for Potable WaterTable 9-4:Residential Water Conservation RebateTable 9-5:Commercial Water Conservation RebatesTable 10-1:Notification to Cities and Counties FIGURES Figure ES-1: CMWD’s Historical, Current, and Projected Water UseFigure 3-1:Carlsbad Municipal Water District Service AreaFigure 3-2:Comparison of 2025 Climate to Historic Average for Carlsbad, CaliforniaFigure 3-3:Disadvantaged CommunitiesFigure 3-4:Major Water InfrastructureFigure 4-1:Historical, Current, and Projected Water Use (AFY)Figure 6-1:CMWD Water Service Systems May 12, 2026 Item #10 Page 16 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents vii APPENDICES Appendix A: Notification Appendix B: UWMP Adoption Resolution (to be Included in Final) Appendix C: UWMP Checklist Appendix D: UWMP Required Tables Appendix E: City of Carlsbad Climate Change Vulnerability Assessment Appendix F: AWWA Water Audit FY2025 Appendix G: DWR Appendix O Energy Intensity Tables Appendix H: CMWD Water Code Title 3 - Environment Appendix I: 2023 City of Carlsbad Hazard Mitigation Plan Appendix J: Reporting on Reduced Delta Reliance May 12, 2026 Item #10 Page 17 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents viii ACRONYMS AND ABREVIATIONS AB Assembly Bill ACS American Community Survey AF Acre-feet AFY Acre-feet per year AHLF Agua Hedionda Lagoon Foundation AMI Advanced Metering Infrastructure AWWA American Water Works Association BMP Best management practices CASGEM California Groundwater Elevation Monitoring CFS Cubic feet per second CII Commercial/Industrial/Institutional CIP Capital Improvement Program CMWD Carpinteria Municipal Water District CWC California Water Code DACs Disadvantaged Communities DMM Demand management measure DRA Drought Risk Assessment DWR Department of Water Resources EI Energy Intensity ESP Emergency Storage Plan EWA Encina Wastewater Authority EWPCF Encina Water Pollution Control Facility FTE Full-time employee GHG Greenhouse gases GPCD Gallons per capita per day GPSCD Gallons per service connection per day HOA Homeowners’ Association LWWD Leucadia Wastewater District MG Million gallons Mg/L Milligrams per liter Mgd Million gallons per day MHI Median household income MWD Metropolitan Water District MWELO Model Water Efficient Landscape Ordinance NEPA National Environmental Policy Act NOAA National Oceanic and Atmospheric Administration NSDWRC North San Diego Water Reuse Coalition ntu Nephelometric Turbidity Unit May 12, 2026 Item #10 Page 18 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Table of Contents ix OMWD Olivenhain Municipal Water District QWEL Quality Water Efficient Landscaper SCADA Supervisory Control and Data Acquisition SDCWA San Diego County Water Authority SDG&E San Diego Gas & Electric SEJPA San Elijo Joint Powers Authority SEWRF San Elijo Water Reclamation Facility SFID Santa Fe Irrigation District SWP State Water Project SWRCB State Water Resources Control Board TAP Tri-Agency Pipeline TDS Total dissolved solids UWMP Urban Water Management Plan VWD Vallecitos Water District WELO Water Efficient Landscape Ordinance WRF Water Recycling Facility WSCP Water Shortage Contingency Plan May 12, 2026 Item #10 Page 19 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Executive Summary ES-1 EXECUTIVE SUMMARY Preparation of an Urban Water Management Plan (UWMP) is required by California Department of Water Resources (DWR) for all urban water suppliers within the State of California. Urban water suppliers are defined as organizations that provide water to more than 3,000 customers or that supply more than 3,000 acre-feet (AF) of water annually. UWMPs must comply with the California Water Code (CWC) and the Urban Water Management Planning Act (Act). The report is the 2025 Urban Water Management Plan (2025 UWMP) for Carlsbad Municipal Water District (CMWD), which will be adopted by CMWD’s Board of Directors and submitted to DWR by July 1, 2026. The 2025 UWMP meets the requirements of state law and includes an analysis of long-term water supply and demand planning for CMWD. Table ES-1 includes a summary of each section of the 2025 UWMP. TABLE ES-1: ORGANIZATIONAL OVERVIEW OF THE 2025 UWMP Section Section Name Information Contained within Section Section 1 Introduction and Overview •General legal requirements for the 2025 UWMPs •Relation of UWMP to local planning efforts Section 2 Plan Preparation •Plan preparation •Agency coordination and outreach •Document overviewSection 3 System Description •History of CMWD •General description of CMWD’s service area, includinghydrologic and climate characteristics •Current and projected population •Description of CMWD’s water system •Overview of potential impacts of climate changeSection 4 Water Use •Overview of past water use •Description of water use by sector •Summary of existing water use in 2025 •System water losses •Water use projections through 2050 •Information about lower income householdsSection 5 SB X7-7 Targets and Reporting •Reporting on 2020 target compliance Section 6 Water Supply •Existing and projected supplies, including purchased andimported water, desalinated water, and recycled water •Description of potential future water projects •Climate change impacts on supplies •Energy intensity of water operations May 12, 2026 Item #10 Page 20 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Executive Summary ES-2 Section Section Name Information Contained within Section Section 7 Water Supply Reliability and Drought Risk Assessment •Constraints on each of CMWD’s supplies •Projections for water supply and water demands undernormal, single dry, and multiple dry year conditions •Drought risk assessmentSection 8 Water Shortage Contingency Plan •Annual supply and demand reliability assessment procedures •Overview of CMWD’s water shortage stages •Prohibitions enacted during water shortages •Methods for reducing water use •Catastrophic supply interruption plan •Shortage communication protocol •Financial impacts of water shortage •Water shortage contingency plan monitoring, reporting, andrefinement proceduresSection 9 Demand Management Measures •Summary of CMWD’s demand management measures (DMM)implemented over past five years •Summary of future DMM implementationSection 10 Plan, Adoption, Submittal, and Implementation •Summary of UWMP review and notification process •Overview of the UWMP adoption process •Implementation of the 2025 Urban Water Management Plan CMWD Service Area and Water Supplies CMWD’s service area is in northern San Diego County and comprises about 32 square miles. CMWD serves approximately 82% of the City of Carlsbad. Olivenhain Municipal Water District (OMWD) and Vallecitos Water District (VWD) serve the remaining southeastern portion. CMWD currently serves approximately 96,000 residents, and its population is projected to grow to over 119,000 by 2035, after which it is expected to remain stable. CMWD experiences a Mediterranean climate, characterized by mild temperatures throughout the year. CMWD averages 11 inches of precipitation each year and temperatures are, on average, 64 degrees in January and 75 degrees in August. CMWD purchases potable water from the San Diego County Water Authority (SDCWA), which includes desalinated seawater. SDCWA sells water to CMWD and 21 other retail water agencies. SDCWA receives its water supplies from the Colorado River, Sacramento-San Joaquin Delta, and the Carlsbad desalination plant. It also purchases water from the Metropolitan Water District of Southern California. CMWD also purchases, produces and sells recycled water. Recycled water is used for irrigation, and this reduces the amount of drinking water that is used. Recycled water is produced by CMWD at the Carlsbad Water Reclamation Facility (WRF). CMWD purchases additional recycled water from VWD’s Meadowlark WRF. CMWD completed its Phase III Recycled Water Project and expanded the capacity of the Carlsbad WRF to 7.0 mgd. As of May 12, 2026 Item #10 Page 21 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Executive Summary ES-3 December 2025, this distribution system supplies more than 1,015 recycled water customers. Moving forward, CMWD plans to increase local supply reliability by continuing to work with neighboring agencies on a North County One Water Project, which would convert ocean-discharged effluent into treated drinking water. Additionally, CMWD plans to add more recycled water customers where the system expansion supports. CMWD entered into an agreement in April 2016 to buy an exact amount (2,500 AFY) of desalinated seawater from the SDCWA. This water is considered local supply and can be counted on for CMWD customers at all times that the plant is producing water. CMWD may continue to explore groundwater as a local supply source; however, CMWD must re-establish its groundwater rights to do so. TABLE ES-2: SUMMARY OF CURRENT AND PROJECTED SUPPLIES (AFY) Source 2025 2030 2035 2040 2045 2050 SDCWA Purchases 11,962 12,415 13,674 13,763 13,868 13,987 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 2,500 Recycled Water 3,708 3,898 4,218 4,218 4,218 4,218 Total Water Supplies 18,170 18,813 20,392 20,481 20,586 20,705 Notes: Recycled water supplies include purchases from VWD and supplies from the Carlsbad WRF. It is assumed CMWD’s contract for 2,500 acre-feet per year of desalinated supply will be renewed when the current contract expires in 2046. CMWD Current and Projected Water Demands CMWD’s past water demands have varied from year to year, mainly because of the annual variations in weather and the economy, although CMWD’s service area is host to a substantial tourist and temporary population throughout the year as well. In addition, all urban water suppliers throughout California were mandated by the Water Conservation Act of 2009 (also known as SB X7-7) to reduce per capita potable water demands 20% by 2020. Although not required for the 2025 UWMP, CMWD estimated its 2025 gallons per capita per day (GPCD) water use to be 134, showing that CMWD remains in compliance with its target. Table ES-3 shows the baselines and targets for CMWD for compliance with SB X7-7. May 12, 2026 Item #10 Page 22 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Executive Summary ES-4 TABLE ES-3: SBX7-7 BASELINES AND TARGETS FOR CMWD Baseline Period Start Years End Years Average GPCD 2015 Target 2020 Target 2020 Actual 2025 Estimate 10-15 year 1999 2008 259 233 207 134 134 CMWD expects that ongoing conservation and increased recycled water use will reduce drinking water demands, further lowering overall gallons per person per day. For example, the Department of Water Resources (DWR) and the State Water Resources Control Board (SWRCB) recently implemented reporting requirements under Assembly Bill 1668/ Senate Bill 606, known as, “Making Conservation a California Way of Life.” As part of the reporting requirements, public water systems must begin implementing AB 1572, prohibiting the use of potable water to irrigate nonfunctional turf in most government, commercial, industrial, institutional (CII), homeowners’ association (HOA) common areas, and community service organization properties, beginning in 2027 for governmental properties, 2028 for CII properties and 2029 for HOAs.1 At the same time, CMWD recognizes that the population and housing inventory in Carlsbad is and will continue to increase in response to recent State regulations that require local jurisdictions to plan to increase their housing availability. For the purposes of the 2025 UWMP, CMWD expects growth in its residential water use sectors over the next decade, eventually stabilizing in 2035 as the City of Carlsbad reaches build-out. Table ES-4 summarizes CMWD’s baseline demands, conservation, recycled water use, and overall drinking water demand projections. Figure ES-1 shows past and future water use, by use sector. Recycled water is also shown to provide an overall summary of CMWD’s water supply. Population is also included to illustrate how water demand has changed relative to population growth. Future demands assume a normal rainfall year. 1 Residential customers may continue to use potable water for irrigation of their turf lawns. May 12, 2026 Item #10 Page 23 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Executive Summary ES-5 TABLE ES-4: SUMMARY OF PROJECTED DEMANDS Water Use Type 2025 2030 2035 2040 2045 2050 Single Family 7,254 7,897 8,716 8,716 8,716 8,716 Multi-Family 1,862 2,128 2,464 2,464 2,464 2,464 Commercial 2,636 2,913 3,066 3,226 3,395 3,573 Industrial 38 38 40 42 44 46 Institutional/Governmental 122 145 152 160 169 177 Agricultural 145 163 163 163 163 163 Landscape (potable) 1,502 1,227 1,136 1,052 974 902 Distribution System Water Loss (Real + Apparent Loss) 863 363 393 396 398 401 Other (Unbilled metered + unbilled unmetered) 40 41 44 44 45 45 Landscape (Recycled) 3,708 3,898 4,218 4,218 4,218 4,218 May 12, 2026 Item #10 Page 24 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Executive Summary ES-6 FIGURE ES-1: CMWD’S HISTORICAL, CURRENT, AND PROJECTED WATER USE CMWD Water Use Conservation Title 3 Environment, of the Carlsbad Municipal Water District Water Code prohibits water waste and encourages conservation within CMWD’s service: • Chapter 3.12 Drought Response follows the SDCWA’s Model Drought Ordinance and creates a six-level Water Shortage Contingency framework, consistent with DWR guidance. This framework gives CMWD the authority to declare shortage levels and implement progressively stronger conservation measures as supply conditions change, ensuring a clear and effective response to drought. • Chapter 3.08 Recycled Water requires the use of recycled water where feasible, consistent with public health, safety and welfare, legal, and environmental requirements. • Chapter 3.04 Emergency Water Management Program establishes four water conservation stages, describes when they would be enacted, and applicable conservation measures and penalties. May 12, 2026 Item #10 Page 25 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Executive Summary ES-7 Additionally, CMWD conducts public education and outreach efforts to promote water conservation, using both direct customer engagement and regional programs offered through SDCWA. Outreach includes quarterly customer communications, participation in community events, distribution of conservation materials, and coordinated regional initiatives such as landscape contests and potable‑reuse education. Through the SDCWA, CMWD also supports free residential workshops, supports school assemblies and teacher resources, and runs an annual fourth‑grade art contest. These combined efforts support long‑term water‑use efficiency across the community. CMWD Water Supply Reliability One of the key requirements to include in a UWMP is a future supply reliability analysis that demonstrates the supply-demand balance in normal, single-dry, and multiple-dry year rainfall conditions. Consistent with SDCWA’s 2025 UWMP, CMWD projects that demands will increase as weather gets hotter and drier during the single-dry year and multiple-dry year scenarios. Recycled water supplies and CMWD’s local desalinated water supply would remain steady in all hydrologic scenarios because they are both drought-proof supplies. Changes in demand would change how much water CMWD purchases from SDCWA. SDCWA and CMWD have coordinated on this UWMP and project that water supply will be adequate to meet demand during a drought. In the unlikely event that SDCWA cannot fully meet CMWD’s water demands, CMWD would receive advance notice and implement the appropriate water‑saving measures outlined in its Water Shortage Contingency Plan, described in detail in Chapter 8. CMWD remains confident in its ability to reliably serve customers through both short‑ and long‑term drought conditions. May 12, 2026 Item #10 Page 26 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 1: Introduction and Overview 1-1 1. INTRODUCTION AND OVERVIEW The 2025 Urban Water Management Plan (2025 UWMP) addresses the Carlsbad Municipal Water District’s (CMWD) water supply sources, projected water demands, and supply reliability. The 2025 UWMP presents a comparison of projected water supplies to water demands during normal year, a single-dry year, and five consecutive dry years. It also includes CMWD’s Water Shortage Contingency Plan (WSCP), which is required for water suppliers to demonstrate they are able to respond effectively during periods of water shortage or drought. This chapter provides an introduction to the purpose of the 2025 UWMP and an overview of the Urban Water Management Planning Act. 1.1 Background and Purpose Water planning is critical in California to prepare for longer droughts, expected long-term climate changes, and regulatory changes. Prior to the adoption of the Urban Water Management Planning Act (Act), water suppliers were not required to conduct long-term water resources planning, which could have left agencies vulnerable to supply disruptions during periods of drought or other supply shortages. The Act was adopted to require a minimum level of resource assessment and planning by water suppliers in order to reduce susceptibility to supply shortages. Water resources planning at the local level also allows for local community involvement, as well as consideration of unique circumstances and local conditions of the individual agency. The 2025 UWMP is an update to CMWD’s 2020 UMWP and WSCP. 1.2 California Urban Water Management Planning Act The 2025 UWMP has been prepared in accordance with the Act, as amended, California Water Code (CWC) Division 6 Part 2.55 §10608 and Part 2.6, §10610 through 10657. The Act became part of the California Water Code with the passage of Assembly Bill 797 during the 1983–1984 regular session of the California legislature. It requires every urban water supplier that provides water for municipal purposes to more than 3,000 connections or supplying more than 3,000 acre-feet (AF) of water annually to adopt and submit a plan every five years to the California Department of Water Resources (DWR). The Act was amended in November 2009 with the adoption of Senate Bill (SB) x7-7. SBx7-7 set a goal of achieving a 20% reduction in urban per capita water use statewide by 2020. The 2025 UWMP demonstrates consistency with the baselines and achievement of the targets that were established for SBx7-7 compliance in CMWD’s 2010 UWMP and achieved by the 2020 UWMP. There have been no major new requirements related to Urban Water Management Plans (UWMPs) for 2025. However, since the 2020 UWMP cycle, the Water May 12, 2026 Item #10 Page 27 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 1: Introduction and Overview 1-2 Code was updated to require water suppliers report on their 2028 Water Loss Standards in their UWMPs. Additionally, although not a requirement for UWMP reporting, SB 606 and Assembly Bill (AB) 1668 established a statewide framework for long-term water conservation and drought resilience planning. Collectively referred to as “Making Conservation a California Way of Life,” the bills are companion measures that align state water-efficiency targets with local water-supply planning to achieve statewide water conservation goals, while maintaining reliable water supplies. Water Code Section 10609.2, added by AB 1668, directs the SWRCB, in coordination with the DWR, to adopt Urban Water Use Objective (UWUO) standards and performance measures for commercial, industrial, and institutional (CII) water use. The Water Code requires annual reporting on actual water usage and grants the SWRCB the authority to monitor, verify and take corrective action to remedy violations if a supplier is non-compliant. These laws expand authorities and requirements for urban water suppliers, while maintaining the foundational provisions of SB X7-7. The Act states that urban water suppliers should make every effort to establish the appropriate level of reliability in water service to meet the needs of its various categories of customers during normal, dry, and multiple dry years. The required contents of the 2025 UWMP, as well as how urban water suppliers should adopt the UWMP, are also described in the Act. The 2025 UWMP also describes demand management measures that CMWD has implemented, or is planning to implement, which could help address urban water use objectives that the California Water Code required suppliers to develop for urban and agricultural sectors in 2023. The 2025 UWMP has been developed in accordance with the DWR Urban Water Management Plan Guidebook 2025 (2025 Guidebook), which provides guidance to agencies on how to include the information required under the CWC, as amended. In accordance with the CWC, this Plan will be adopted and submitted to DWR by July 1, 2026. 1.3 Relation to Other Planning Efforts UWMPs allow for integration of information from other planning documents, as well as regional planning efforts. The 2025 UWMP synthesizes information from CMWD’s current planning documents and complements regional planning documents. Upon completion, the 2025 UWMP will help to inform other planning decisions, such as updates to the Carlsbad General Plan, and can be used to establish priorities in other planning efforts. The information developed for the 2025 UWMP is also developed in parallel and used to inform and support the San Diego County Water Authority’s (SDCWA) 2025 Urban Water Management Plan, which provides water reliability assessment for the region’s water May 12, 2026 Item #10 Page 28 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 1: Introduction and Overview 1-3 wholesaler. In addition, Appendix K demonstrates consistency with the Delta Plan’s policy to reduce reliance on Sacramento-San Joaquin Delta (Delta) through the development of local supplies. Relevant, related planning efforts include the following: 1.CMWD, 2019 Potable Water Master Plan – Documents existing water systemfacilities and demands, identifies existing deficiencies in the system, confirmsfacility sizing, and recommends a future capital improvement program (CIP) basedon updated water demand projections. 2.CMWD, 2019 Recycled Water Master Plan – Evaluates the capabilities of theexisting recycled water system, defines the most cost-effective system expansionsthrough build-out conditions, and develops a recycled water CIP. 3.CMWD, 2019 Utilities Asset Management Master Plan – Supports 2019 PotableWater Master Plan with condition assessment and CIP planning with respect toasset inventory and valuation. 4.CMWD, 2025 Potable and Recycled Water Cost-of-Service Study – Study ofCMWD’s potable water, recycled water, and wastewater systems and to develop arate plan for the 2025-2029 period. 5.CMWD, 2025 Wastewater Cost of Service Study – Study of CMWD’s potable water,recycled water, and wastewater systems and to develop a rate plan for the 2025-2029 period. 6.SDCWA, 2025 Urban Water Management Plan – Identifies regional water sourcesand volumes for SDCWA’s service area, including supply reliability analysis of thewholesale (imported + desalinated seawater) supply. 7.City of Carlsbad, 2023 Climate Change Vulnerability Assessment – Evaluates howclimate change may affect vulnerable communities, natural resources, facilities,buildings, services, and infrastructure. 8.City of Carlsbad, 2024 Climate Action Plan – Outlines updated strategies to reducegreenhouse gas emissions and promote environmental sustainability. 9.City of Carlsbad, 2015 General Plan - Carlsbad’s 2015 General Plan serves as ablueprint for future growth and development within the city. It includes a safetyelement that addresses seismic conditions and risk. May 12, 2026 Item #10 Page 29 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 1: Introduction and Overview 1-4 10. City of Carlsbad 2021-29 Housing Element, April 2021 – This update to the City’s General Plan addresses substantive changes to State housing law since the city’s last 2017 Housing Element including the Affordable Housing Streamlined Approval Process: Senate Bill 35 (2017), Assembly Bill 168 (2020) and Assembly Bill 831 (2020). 11. City of Carlsbad 2024 General Plan Update for Land Use and Community Design - These updates address land use designations, population density and building intensity standards. 12. City of Carlsbad 2023-24 Growth Management Program Annual Monitoring Report, April 2025. 13. County of San Diego, 2023 Multi-jurisdictional Hazard Mitigation Plan – The revised Multi-jurisdictional Hazard Mitigation Plan was adopted by the County of San Diego in 2023 and it is a countywide plan that identifies risks and ways to minimize damage by natural and manmade disasters. 14. CMWD Annual Population Projections, 2025-2050, Technical Memorandum. Prepared by Woodard & Curran, April 2, 2025 – Estimates long-range population and demographic projections for use in water demand forecasts. 15. CMWD Seasonal Population Variance Analysis Technical Memorandum. Prepared by Woodard & Curran, September 8, 2025 - Quantifies a volume for the Significant Fluctuations in Seasonal Populations variance for the “Making Conservation a California Way of Life” annual reporting. 1.4 Lay Description The Executive Summary of the 2025 UWMP provides a lay description of the fundamental determinations of the UWMP, particularly regarding water service reliability, potential issues, and strategies for managing reliability risks. 1.5 Organization of the Urban Water Management Plan The 2025 UWMP is organized into the following 10 sections: • Section 1: Introduction and Overview – Provides an overview of the UWMP Planning Act and this UWMP’s purpose. It also outlines how this UWMP relates to other local and regional planning efforts. • Section 2: Plan Preparation – Describes the basis for preparing the 2025 UWMP. May 12, 2026 Item #10 Page 30 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 1: Introduction and Overview 1-5 • Section 3: Description of Service Area – Details CMWD’s service area, climate, population, land use, water system infrastructure, and socioeconomic characteristics. • Section 4: Water Use – Provides an overview of historical, current, and projected water use across various sectors. • Section 5: SB X7-7 Targets and Reporting – Describes meeting the state-mandated requirements for per capita water use. • Section 6: Water Supply – Describes CMWD’s current and planned water sources. • Section 7: Water Supply Reliability and Drought Risk Assessment - Evaluates the reliability of water supplies under normal, single-dry, and multiple-dry scenarios. • Section 8: Water Shortage Contingency Plan – Outlines triggers, mandatory reduction levels, and response actions to address water shortages at varying levels. • Section 9: Demand Management Measures – Describes CMWD’s conservation programs. • Section 10: Plan Adoption, Submittal, and Implementation – Summarizes CMWD’s public hearing and adoption process. May 12, 2026 Item #10 Page 31 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 2: Plan Preparation 2-1 2. PLAN PREPARATION Section 2 Plan Preparation addresses CMWD’s basis for preparing a UWMP and related information. It also provides a description of how the 2025 UWMP is organized and identifies general details regarding CMWD and the data used for this plan. 2.1 Plan Preparation and Implementation CMWD is a retail water agency that supplied 18,170 AF of water (potable and recycled) to a service area with a population of 96,371 people and 30,521 connections in 2025. Of this total, 13,559 AF was delivered as potable water to 29,506 connections, and 3,708 AF was delivered as recycled water to 1,015 connections. Approximately 903 AF was lost as non-revenue water.1 Non-revenue water includes real losses, defined as physical water losses such as leaks, apparent losses, which include “paper losses” or water lost through inaccurate measuring or recording, and unbilled water, which includes water used in activities such as firefighting, flushing of water mains, or water used for distribution operations. The 2025 UWMP was prepared as an individual plan in coordination with appropriate agencies. This chapter provides descriptions of agency coordination, public participation, Plan adoption, and Plan organization. Table 2-1, Table 2-2, and Table 2-3 provide information on CMWD as a retail water agency and its water system, and how data will be reported throughout the 2025 UWMP. TABLE 2-1: PUBLIC WATER SYSTEM DWR Table 2-1 Retail: Public Water Systems Public Water System Number Public Water System Name Number of Municipal Connections 2025 Volume of Water Supplied 2025 (AFY) CA3710005 Carlsbad Municipal Water District 29,506 14,462 Notes: This table only reflects potable water connections and deliveries. CMWD’s recycled water system has 1,015 connections and supplied 3,708 AF in 2025. 1 In this UWMP, data are reported for the calendar year 2025, except for data on water losses, which CMWD began reporting on a fiscal year basis in 2024-25. May 12, 2026 Item #10 Page 32 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 2: Plan Preparation 2-2 TABLE 2-2: PLAN IDENTIFICATION DWR Table 2-2: Plan Identification Select Only One Type of Plan Name of RUWMP or Regional Alliance if applicable Individual UWMP Water Supplier is also a member of a RUWMP Water Supplier is also a member of a Regional Alliance Regional Urban Water Management Plan (RUWMP) Notes: CMWD is a member agency of the San Diego County Water Authority. TABLE 2-3: SUPPLIER IDENTIFICATION DWR Table 2-3: Supplier Identification Type of Supplier (select one or both) Supplier is a wholesaler Supplier is a retailer Fiscal or Calendar Year (select one) UWMP Tables are in calendar years UWMP Tables are in fiscal years Units of measure used in UWMP* Unit AF * Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Table 2-3. 2.2 Coordination and Outreach The Act requires CMWD to coordinate the preparation of its plan with other appropriate agencies in the area, including other water suppliers that share a common source, water management agencies, and relevant public agencies, to the extent practicable. While preparing the 2025 UWMP, CMWD attended workshops conducted by DWR to discuss the requirements of the Act and attended meetings with SDCWA, CMWD’s wholesale May 12, 2026 Item #10 Page 33 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 2: Plan Preparation 2-3 water supplier. SDCWA’s 2025 Urban Water Management Plan should be consulted for details regarding CMWD’s wholesale water supplies. Table 2-4 identifies SDCWA as CMWD’s wholesale water supplier, with whom CMWD has coordinated on its supply and demand evaluations. TABLE 2-4: WATER SUPPLIER INFORMATION EXCHANGE DWR Table 2-4 Retail: Water Supplier Information Exchange The retail supplier has informed the following wholesale supplier(s) of projected water use in accordance with CWC 10631. Wholesale Water Supplier Name San Diego County Water Authority CMWD worked closely with the City of Carlsbad’s Community Development Department in the preparation, updates on land use and development in CMWD service area of the City, and review of 2025 UWMP elements. CMWD worked with the San Diego Association of Governments (SANDAG) for information on land use. In preparing the recycled water elements of the 2025 UWMP, CMWD consulted with the agencies responsible for the existing and potential sources of recycled water in northern San Diego County, including Vallecitos Water District (VWD), Leucadia Wastewater District (LWWD), Encina Wastewater Authority (EWA), City of Escondido, City of Oceanside, Olivenhain Municipal Water District (OMWD), Rincon del Diablo Municipal Water District (Rincon), San Elijo Joint Powers Authority (SEJPA), and Santa Fe Irrigation District (SFID). Table 2-5 provides a summary of CMWD’s coordination with the appropriate agencies. TABLE 2-5: COORDINATION WITH AGENCIES Organization/Agency Name Level of Participation Sent 60-Day Notice of 2025 UWMP update and Public Hearing Contacted for Assistance City of Carlsbad X X City of Encinitas X City of Escondido X X City of Oceanside X X City of San Diego X City of San Marcos X City of Vista X County of San Diego X Encina Wastewater Authority X X May 12, 2026 Item #10 Page 34 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 2: Plan Preparation 2-4 Organization/Agency Name Level of Participation Sent 60-Day Notice of 2025 UWMP update and Public Hearing Contacted for Assistance Leucadia Wastewater District X X Metropolitan Water District of Southern California X Olivenhain Municipal Water District X X Rincon del Diablo Municipal Water District X X San Diego Association of Governments X X San Diego County Water Authority X X San Diego Local Area Formation Commission X San Elijo Joint Powers Authority X X Santa Fe Irrigation District X X Vallecitos Water District X X San Dieguito Water District X Vista Irrigation District X 2.3 Public Participation CMWD encourages community and public involvement in the 2025 UWMP. CMWD scheduled a public hearing for May 12, 2026, to provide an opportunity for CMWD’s customers to learn about the water supply situation and plans to continue to provide a reliable water supply for the future. The hearing is an opportunity for people to ask questions regarding the 2025 UWMP and Water Shortage Contingency Plan. A 60-day notice of the public hearing was provided to San Diego County and adjacent cities and other entities on March 9, 2026. The notification list is included in Appendix A. Public hearing notifications were published in the San Diego Union Tribune on April 28 and May 5, 2026. A copy of the draft 2025 UWMP was available for a 30-day public review beginning March 11, 2026, on the City of Carlsbad’s website at www.carlsbadca.gov and a hard copy is available for review at City offices. Copies of the notices are included in Appendix A. The 2025 UWMP is scheduled to be adopted by the Board of Directors following the public hearing on May 12, 2026. A copy of the adoption resolution will be provided in Appendix B. The 2025 UWMP will be submitted to DWR, the California State Library, and San Diego County within 30 days after adoption. The final 2025 UWMP will be available for public May 12, 2026 Item #10 Page 35 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 2: Plan Preparation 2-5 review on the City of Carlsbad’s website (www.carlsbadca.gov) within 30 days after filing a copy of the 2025 UWMP with DWR. CMWD will implement the adopted 2025 UWMP in accordance with the schedule described in this UWMP. 2.4 Plan Organization The 2025 UWMP generally follows the suggested organization in the 2025 Guidebook. Section 1 provides an overview of the background and purpose of the Urban Water Management Planning Act and the 2025 UWMP. Section 2 describes the plan preparation process and plan organization. Section 3 provides a description of the service area, climate, and water system. Section 4 presents historical and projected water use and demands. Section 5 presents SB X7-7 2020 Targets and 2020 Reporting, as required. Section 6 describes CMWD’s water supplies. Section 7 provides an assessment of local and regional water supply reliability. Section 8 discusses water shortage contingency planning. Section 9 presents demand management measures. Section 10 discusses the plan adoption, submittal and implementation process. Relevant supporting documents have been included as appendices where indicated. DWR has provided a checklist of the items that must be addressed in each UWMP as required by the Act. This identifies exactly where in the UWMP each item has been addressed and is provided in Appendix C. A copy of all the required DWR tables are provided as Appendix D. CMWD has elected to include additional tables in various chapters to provide clarity and support chapter narratives. Throughout the 2025 UWMP, tables are numbered sequentially, with tables containing information addressed in the required DWR tables indicated in the dark blue header row of the given table: May 12, 2026 Item #10 Page 36 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-1 3. SYSTEM DESCRIPTION This section describes CMWD’s service area and water system, including climate, current and projected population, and other social, economic, and demographic factors affecting CMWD’s water management planning. 3.1 Description of Service Area CMWD’s service area is 20,682 acres or approximately 32 square miles. CMWD provides potable and recycled water supply to the majority (approximately 82%) of the City of Carlsbad (City or Carlsbad). CMWD’s boundary, which defines the Study Area for UWMP is shown in Figure 3-1. VWD and OMWD supply water to the remaining parts of the City of Carlsbad. CMWD supplies potable water within its service area, and recycled water within a portion of its service area. In 2025, CMWD purchased 100% of its potable water supply from the San Diego County Water Authority (SDCWA). Of this amount, 18% is desalinated seawater produced at the Carlsbad Desalination Plant and delivered via SDCWA infrastructure. This desalinated seawater is considered a guaranteed local supply. The potable water distribution system consists of 457 miles of pipeline, 74 pressure regulating stations, three pump stations, and nine reservoirs. CMWD supplies recycled water from two supply sources, which include 97 miles of pipeline, six pressure zones, four storage tanks, four pumping stations, and four pressure regulating stations. Sanitary sewer collection service within the CMWD service area is provided by City of Carlsbad (City), VWD and LWWD. Wastewater treatment is provided by Encina Wastewater Authority (EWA) through the Encina Water Pollution Control Facility (EWPCF), located in Carlsbad. Tertiary treatment and recycled water production are provided by CMWD’s Carlsbad Water Recycling (WRF) and VWD’s Meadowlark Water Reclamation Facility. A detailed description of major water, wastewater, and recycled water infrastructure facilities is provided in Section 3.3 Description of Water System, below. Carlsbad’s housing stock consists primarily of single-family homes, with some multi-family and mobile homes. Single-family residences generally contain larger landscaped areas, planted in turf and shrubbery, requiring more water for outdoor uses in comparison to other types of housing. The general characteristics of multi-family and mobile homes limit their outdoor landscaping and water use, although some condominium and apartment developments have both functional and ornamental landscaped areas. Many residential landscapes are irrigated by recycled water. Commercial users in CMWD’s service area include offices and commercial centers, which have limited outdoor water use, but also May 12, 2026 Item #10 Page 37 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-2 include resorts, golf courses, and other tourism and recreational facilities; many of which use recycled water for landscaping, as well. 3.1.1 Agency Organizational Structure CMWD is a subsidiary district of the City of Carlsbad. The City was incorporated in 1952, and the assets of the two previous water suppliers for the Carlsbad area were purchased by the City in 1957. CMWD was initially formed in 1954 to facilitate the transfer of imported water to the unincorporated areas surrounding the City and to provide wholesale water to the newly formed City. In 1983, the City conveyed all its functional water responsibilities for the provision of water service to CMWD. In 1990, CMWD became a subsidiary district of the City of Carlsbad. The five-member Carlsbad City Council governs CMWD and acts as CMWD’s Board of Directors. CMWD’s service area covers approximately 82% of the incorporated City. Additional history of water services within CMWD’s service area is provided in Section 3.4 Water System Background, below. May 12, 2026 Item #10 Page 38 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-3 FIGURE 3-1: CARLSBAD MUNICIPAL WATER DISTRICT SERVICE AREA May 12, 2026 Item #10 Page 39 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-4 3.1.2 Service Area Climate Carlsbad’s climate is characteristically Mediterranean with mild temperatures year-round. This mild climate is derived equally from the warm ocean water being pulled north from Mexico and from its subtropical, semi-desert locale. The result is temperatures with an average high of 64 degrees in January and 75 degrees in August, with an average annual rainfall of about 11 inches. Data from the National Oceanic Atmospheric Administration’s (NOAA) climate station at the McClellan Palomar Airport show that 2025 mean monthly temperatures were close to the historic average, while monthly total precipitation was above the historic average for the early part of the year, but below the historic average in the end of the year (historic baseline average is calculated for the 30-year period from 1981 to 2010). In 2025, the winter months received more rainfall compared to normal historic precipitation. The months of September through February can bring warm wind from the desert called a “Santa Ana.” Occurring about 10 days out of the year, these winds typically bring hot and dry conditions, which can spread and worsen wildfires (City of Carlsbad 2023). Figure 3-2 provides a comparison of 2025 precipitation and mean monthly temperatures with historic average climate, as recorded at the McClellan Palomar Airport located in Carlsbad. A detailed discussion of potential climate change impacts on CMWD’s service area is provided in Section 3.5 Climate Change, below. FIGURE 3-2: COMPARISON OF 2025 CLIMATE TO HISTORIC AVERAGE FOR CARLSBAD, CALIFORNIA 0 10 20 30 40 50 60 70 80 0 0.5 1 1.5 2 2.5 3 3.5 Te m p e r a t u r e ( F ) Pr e c i p i t a t i o n ( i n c h e s ) Normal Precipitation 2025 Precipitation Normal Temperature 2025 Temperature May 12, 2026 Item #10 Page 40 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-5 3.1.3 Land Uses Within the Service Area The City updated the Land Use and Community Design section of its General Plan in 2024. The Land Use and Community Design section identifies current land uses, including residential, commercial and industrial, public and quasi-public uses, parks and recreation, agriculture, open space or natural areas, and vacant land. The remaining land is right-of-way. Table 3-1 provides a summary of the land use classifications and the total acres within the City of Carlsbad, according to the latest GIS data associated with the General Plan Update (City of Carlsbad 2024). TABLE 3-1: LAND USE CLASSIFICATION WITHIN THE CITY OF CARLSBAD Land Use Classification City Acres Percent of City of Carlsbad Percent of CMWD Residential 8,535 39% 30% Commercial and Industrial 2,654 12% 12% Public and Quasi-Public 956 4% 3% Open Space 9,182 42% 35% Transportation Corridor 427 2% 2% Village Barrio 264 1% 1% Source: City of Carlsbad 2024 GIS Land Use Data Existing land uses within the CMWD service area are primarily residential and parks and open space, with a mix of commercial and industrial. Additionally, a county airport, tourist attractions such as Legoland, and a mix of resorts and golf courses are located within CMWD’s service area. Residential land uses make up approximately 35% and parks and open space land uses make up approximately 40% of the total service area. The City has maintained a Growth Management Plan and a Growth Database since 1986 to monitor development within the city and to ensure that adequate facilities are constructed in an orderly manner to support future growth. Proposition E established limits, or caps, on the number of homes in the city. However, recent State housing laws (Senate Bills 166 and 330), preempt the City’s ability to require compliance with the housing caps and limit the City’s ability to restrict development. The City’s recently adopted annual Growth Management Program Monitoring Report (City of Carlsbad 2025), addresses this increased growth, as discussed in further detail in Section 3.1.4. SANDAG has completed a Series 15 forecast of land use for the City of Carlsbad (SANDAG 2026). Between 2022 and 2050 the total land area in the City of Carlsbad remains constant at 25,052 acres. Developed land increases from 18,605 acres in 2022 to 19,144 acres in 2050. Single-family land uses are projected to increase by 9% between 2022 to 2050, while multiple family land uses expected to increase by 13.5%. Other land uses are projected to May 12, 2026 Item #10 Page 41 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-6 decrease. For example, agriculture and extractive land use is projected to decrease by 50% between 2022 to 2050. 3.1.4 Population and Demographics To project CMWD’s future water demands and water use characteristics, future population and growth trends are essential. The population projections presented in Table 3-2 were developed using local planning data provided by the City of Carlsbad Planning Division. The City anticipates buildout by 2035, and after 2035, it is estimated that the number housing units will remain relatively constant through the 2050 planning horizon. The City Planning Division provided the Yield Analysis for Density Bonus and Housing Element sites that contained housing site development projects and other approval and permit application dates. The Yield Analysis is a part of the City’s Growth Management Plan update and Housing Element update. The Yield Analysis included location, application date, proposed units, high-density allowed units, and application status for density bonus sites. For sites identified in the General Plan Housing Element as having development potential, the Yield Analysis included location, application status if applicable, proposed units, and high-density allowed units. A static 5.5% vacancy rate for housing units and an average of 2.63 persons per unit were used to estimate housing units and population from 2025 to 2035. The Yield Analysis included only sites within the CMWD service area. TABLE 3-2: CMWD’S SERVICE AREA POPULATION – CURRENT AND PROJECTED DWR Table 3-1 Retail: Population – Current and Projected Population Served 2025 2030 2035 2040 2045 2050 96,371 106,031 119,616 119,616 119,616 119,616 A secondary analysis was conducted to compare to the local projections. For the CMWD service area, the estimated annual growth rate based on the average annual population growth between 2021 and 2023 from the American Community Survey (ACS) program conducted by the US Census Bureau is 0.45%, while the average annual housing unit growth rate between 2021 and 2023 is 0.26%. Based on these growth rates, the population in the CMWD service area would be 95,682 in 2035 and 102,363 in 2050, which is lower than the local projections. The SANDAG Interim Series 15 Regional Growth Forecast projects a gradual increase in population within the CMWD service area, peaking at 105,640 in 2035. This trend is consistent with local projections, although SANDAG expects a lower peak population in 2035. However, after 2035, SANDAG forecasts that the population begins to decline, reaching 103,033 by 2050. This is a result of SANDAG assumptions of a lower birth rate in 2050 due to an aging population and continuing trends of lower birth rates among younger individuals. Additionally, within an aging May 12, 2026 Item #10 Page 42 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-7 population, SANDAG anticipates that there will be more deaths in 2050 compared to earlier years. CMWD used local planning data and information on planned developments because the City of Carlsbad’s Planning Division anticipates full buildout by 2035 and housing units assumed to remain constant thereafter (Woodard & Curran 2025). With no additional residential growth projected beyond buildout, population within the service area is anticipated to remain stable. Table 3-3 provides a comparison of population growth, comparing the local planning data with estimates from SANDAG and the U.S. Census ACS. TABLE 3-3: CMWD GROWTH POPULATION COMPARISON Population Data 2025 2030 2035 2040 2045 2050 SANDAG Series 15 101,040 104,719 105,640 105,124 104,083 103,033 U.S. Census ACS 91,472 93,533 95,682 97,859 100,085 102,363 Local Planning Data1 96,371 106,031 119,616 119,616 119,616 119,616 1 Local planning data were used for population projections Water use in CMWD’s service area is closely linked to the local economy, population, and weather. Over the last century, a prosperous local economy has stimulated population growth, which in turn produced a relatively steady increase in water demand. However, fluctuating economic and weather conditions in the 1990s and lingering effects from the 1987-1992 drought resulted in deviations from historic demand patterns. By 1999, a new combination of natural population increases, and job creation surfaced as the primary drivers of water consumption increases. The recession that started in 2008 brought an increase in unemployment and decrease in housing prices that dampened population growth and water use. In addition, CMWD adopted a residential tiered water rate in July 2009 which may have further dampened demand by the residential population. In 2020, demand trends were lower than the long-term average prior to 2015, which was a result of drought response measures and State-mandated water use cutbacks in 2015 and 2016. The COVID-19 pandemic that started in 2020 has resulted in increased unemployment and work-from-home patterns that resulted in additional long-term socioeconomic changes for the region. In the 2020 UWMP, CMWD expected water use in 2025 to be 20,520 AFY, which was a higher estimate than actual demand in 2025, which was 18,170 AFY. Current demand projections are anticipated to follow the same trends as the population projects. Demand is expected to increase through 2035 and then stay relatively constant as the City maintains buildout levels between 2035 through 2050. CMWD’s service area is host to a substantial tourist and temporary population throughout the year, with overnight guests in the City of Carlsbad ranging between approximately 75,000 and 199,000 people per month. In 2025, CMWD evaluated its seasonal population May 12, 2026 Item #10 Page 43 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-8 variance for the “Make Conservation a California Way of Life” regulation, as a result of 2018’s Assembly Bill 1668/Senate Bill 606 regulation. The analysis classified 2,215 premises as seasonally occupied based on water usage patterns (Woodard & Curran 2025). Water use is further described in Section 4 Water Use of the 2025 UWMP. The population and housing inventory in Carlsbad is and will continue to increase from 2020 to 2035, eventually stabilizing in 2035. This trend is driven by recent State regulations (e.g., Senate Bills 166 and 330) that require local jurisdictions to plan to increase their housing availability in an attempt to increase available, affordable housing to moderate the high cost of living in California. For example, recent updates to the Housing Accountability Act, a state law that limits local governments’ decision-making authority over certain housing development projects, allow housing development projects to move forward as long they meet objective standards of the city land use regulations (e.g., housing element, zoning, subdivision standards, design criteria). CA Senate Bill 330, which became effective January 1, 2020, also limited cities’ ability to deny a housing project that meets established development requirements. Additionally, State density bonus law allows a developer to increase density (total number of homes) allowed on a property above the maximum set under a city’s local land use plan (Carlsbad General Plan) by as much as 100%. In addition, qualifying applicants can also receive reductions in required development standards such as setbacks and height limits when those standards prevent the applicant from achieving the density allowed under state law. Other tools include reduced or no parking requirements for certain project types. The City has taken steps to respond to the State regulations, including rezoning parcels as part of the General Plan Housing Element Program. The rezoning process included increasing the number of housing units allowed on properties that already allow housing, and converting government-owned, commercial, and vacant industrial properties to allow for housing. In addition, the City has updated its Growth Management Plan (City of Carlsbad 2025) to ensure the objective city land use regulations that developers will comply with are thorough and thoughtful. For example, the updated Growth Management Plan considers the implications of the rezoning program, such as adequate public facilities and public performance standards. New developments are in various stages of planning, design, and construction. During fiscal year 2023-2024, building permits were issued for 500 new dwelling units, including 73 accessory dwelling units, and for 181,758 square feet of new non-residential space (City of Carlsbad 2025). Rapidly increasing development cannot be restricted under any local laws, policies, or programs that aim to limit the amount of residential development (City of Carlsbad 2025). The City of Carlsbad’s demographics vary in terms of income, age, education levels, and racial and ethnic composition. The City of Carlsbad has a median household income (MHI) of $139,326 (in 2023 dollars) and a poverty rate of 6.9%. About 23% of the population is May 12, 2026 Item #10 Page 44 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-9 under 18 years of age and 18.4% is over 65 years of age. Of the City’s population that is 25 years of age or older, 96.1% have a high school degree or higher, with 61.4% obtaining a bachelor’s degree or higher. About 66% of the population identify as Non-Hispanic white, 16.8% identify as Hispanic or Latino, 9.8% identify as Asian, and 4.6% identify as other or a mix of two or more races (US Census 2020). Of CMWD service area within the City of Carlsbad, about 8.35% is defined as disadvantaged communities (DACs), areas with an average MHI less than 80% of the statewide MHI of $77,067. Of these DAC areas, about 0.51% are considered severely disadvantaged communities (SDACs), defined as having an average MHI less than 60% of the statewide MHI (Figure 3-3). May 12, 2026 Item #10 Page 45 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-10 FIGURE 3-3: DISADVANTAGED COMMUNITIES May 12, 2026 Item #10 Page 46 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-11 3.2 Overview of Significant Water Uses The primary water uses in CMWD’s service area are residential, commercial, industrial, agricultural, and irrigation. Residential water use represents the largest water use sector for CMWD. Residential water uses include both indoor and outdoor uses for single-family and multi-family categories. Commercial water uses generally consist of uses necessary for business operation and are more varied than residential uses. Major commercial water uses include restaurants, car washes, laundries, and hotels, as well as schools and churches. Commercial water uses also encompass resorts, golf courses, Legoland, and other tourism and recreational facilities. Industrial water uses include product processing, equipment cooling, sanitation and air conditioning. Agricultural water uses are relatively minor, and primarily consist of commercial strawberry and flower fields, and wholesale nursey operations. Irrigation water use fluctuates by season and primarily includes the irrigation of medians, slopes, and parkways. As shown in Table 4-2, key water users within CMWD’s service area in 2025 were residential, which represented 50% of total demands in 2025, and commercial, which accounted for 15% of total demands in 2025. 3.3 Description of Water System CMWD currently receives 100% of its potable water supply through four SDCWA treated water turnouts. Two of the turnouts, Connections No. 6 and No. 2, are direct connections to SDCWA’s Second Aqueduct. Connection No. 6 supplies only CMWD, and Connection No. 2 is delivered through a VWD transmission main. Connections No. 3 and No. 4 are on SDCWA’s Tri-Agency Pipeline (TAP), which is supplied from the Second Aqueduct. Major water infrastructure facilities are shown in Figure 3-4. Potable water is delivered within the CMWD service area through 457 miles of pipeline, 17 pressure zones, 74 pressure regulating stations, three pump stations, and nine reservoirs. The CMWD water distribution system is flexible in that supply can be routed to different parts of the distribution system, as needed. The total operational storage for CMWD is 242.5 million gallons (MG). CMWD also has an extensive recycled water distribution system. CMWD supplies recycled water from two sources through its recycled water distribution systems, which include 97 miles of pipeline, six pressure zones, four storage tanks, four pumping stations, and four pressure regulating stations. CMWD supplies a majority of recycled water from the Carlsbad Water Recycling Facility (WRF), owned by CMWD and operated by EWA. A portion of the eastern service area is served by a second supply source from VWD’s Meadowlark WRF. CMWD finished expanding its recycled water system with the Phase III Recycled Water Project. The Phase III Recycled Water Project, which began construction in 2015, included expansion of the existing Carlsbad WRF and construction of distribution May 12, 2026 Item #10 Page 47 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-12 pipelines, storage, and related appurtenances. The Carlsbad WRF was expanded from 4.0 million gallons per day (mgd) to 7.0 mgd by installing additional filtration units and a chlorine contact basin. The Carlsbad WRF expansion was completed in 2018. Approximately 85,000 linear feet of pipeline and a 1.5-million-gallon recycled water storage tank were constructed, existing potable water facilities were converted to recycled water use, and landscape irrigation water systems were retrofitted to use recycled water in eight expansion segment locations. Eighty-six (86) customers were connected to CMWD’s recycled water system, adding a recycled water demand of 338 AFY as a result of the Phase III Recycled Water Project. Where possible and existing infrastructure supports, CMWD plans to connect more recycled water customers as additional opportunities arise (CMWD 2024; CMWD 2025). 3.4 Water System Background Water demands for the area were initially supplied by the privately held Carlsbad Mutual Water Company and Terramar Water Company through the utilization of local groundwater and surface water supplies. The Carlsbad Mutual Water Company’s groundwater wells began development prior to 1914 with rights to 2,382 AFY. In addition, a license was obtained (terminable by the State Division of Water Rights, DWR) for another 1,000 AFY. The Carlsbad Mutual Water Company constructed nine wells in the Mission Basin of the San Luis Rey River, located in the City of Oceanside, generally near the intersection of Mission Avenue and Foussat Road. Prior to 1942, local groundwater was the only developed source of water for Carlsbad Mutual Water Company. Additionally, they constructed booster pumping stations, storage tanks, and transmission facilities to supply residential, commercial and agricultural users. In September 1941, Carlsbad Mutual Water Company completed construction of an earthen dam (Calavera Dam), which captured local surface water runoff creating Lake Calavera. Lake Calavera also included a 2-million-gallon per day (mgd) water filtration plant. A permit to divert 150 AFY from Calavera Creek was also obtained. The Terramar Water Company constructed four wells located in Agua Hedionda Creek (referred to as the Cannon Well Field), a second connection to the Carlsbad Mutual Water Company’s pipeline from Lake Calavera at El Camino Real, a reservoir, plus a distribution system to supply residential, commercial, and agricultural users. The Cannon Well Field’s four wells were constructed beginning in 1950 and located at and around the Rancho Carlsbad Golf Course property. The groundwater pumped from these wells was the original supply for the Terramar Water Company and had a safe yield capacity estimated at 400 AFY. This groundwater was obtained from the Carlsbad hydrologic unit of the San Diego Region, a designation assigned by DWR. The four wells remain but are no longer operational and thus, CMWD does not currently pump groundwater from these wells. May 12, 2026 Item #10 Page 48 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-13 The City of Carlsbad was incorporated in 1952, and the assets of the Carlsbad Mutual Water Company and Terramar Water Company were purchased by the City of Carlsbad in an agreement dated August 30, 1957. The City operated and maintained both water systems from 1958 to 1962. CMWD was formed in 1954 as a vehicle to bring imported water to the unincorporated areas surrounding the City of Carlsbad and to wholesale water to the newly formed City of Carlsbad. CMWD’s first meeting was held on March 22, 1954, and CMWD became a member of SDCWA that same year. CMWD began receiving imported water deliveries in 1955 through existing aqueduct connections located in the City of Escondido. CMWD constructed a pipeline in 1956 to convey imported water directly to the City of Carlsbad and unincorporated areas within CMWD’s service area. In 1962, CMWD constructed Maerkle Dam (previously called Squires Dam) with a capacity of 600 AF in the Agua Hedionda Basin. CMWD also obtained a permit for surface water rights tributary to Maerkle Dam in the amount of 25 AFY. May 12, 2026 Item #10 Page 49 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-14 FIGURE 3-4: MAJOR WATER INFRASTRUCTURE May 12, 2026 Item #10 Page 50 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-15 As demands for water increased, seawater intrusion into the groundwater supply resulted in the gradual degradation of groundwater quality in the Mission Basin of San Luis Rey River. The total dissolved solids (TDS) content of the groundwater in the Mission Basin increased to the point where treatment would be required. At the same time, lower-cost imported water became available through CMWD. As a result of the availability of this alternative supply of water, the City of Carlsbad ceased extracting groundwater and suspended use of local surface water supplies by the end of 1962. As a result, the water filtration plant at Lake Calavera was dismantled because of regulations requiring that surface waters be fully treated prior to introduction into a potable water system. The cost to construct facilities to treat the small amount of infrequently occurring surface water was determined to be much greater than the comparable cost of imported water. The Mission Basin wells were beyond repair and subsequently removed by 2005, in accordance with California Department of Public Health requirements. In an agreement dated May 25, 1983, the City of Carlsbad conveyed all its functional water responsibilities for the provision of water service to CMWD, including all the water facilities and groundwater and surface water rights purchased from Carlsbad Mutual Water Company and Terramar Water Company in 1957. This included all existing water facilities and responsibility for planning, financing, and construction of all major capital facilities necessary to provide potable water service within CMWD and portions of the City of Carlsbad not located in other retail water service agencies. On January 1, 1990, CMWD became a subsidiary district of the City of Carlsbad through an agreement between both agencies approved by the City Council on April 25, 1989. From 1979 until joining with the City as a subsidiary district, CMWD was known as the Costa Real MWD. The Carlsbad City Council, acting as CMWD’s Board of Directors, governs CMWD. CMWD’s current water supplies consist of treated water purchased from SDCWA, local potable desalinated water received with SDCWA blended supplies, and recycled water. Beginning in 1990, CMWD began serving recycled water within its service area. By 1995, CMWD supplied over 1,000 AFY of recycled water through the implementation of the recycled water system facilities of Phase I. CMWD began implementation of Phase II in 2000, which included the construction of the Carlsbad WRF, improvements to Mahr Reservoir, three new booster pump stations, and 24 miles of additional recycled water pipelines. The Phase III Recycled Water Project, which began construction in 2015 and was completed in 2025, included expansion of the existing Carlsbad WRF and construction of distribution pipelines, storage, and related appurtenances. In April 2016, CMWD’s Board approved an agreement to purchase 2,500 AF of desalinated seawater from SDCWA, which is blended along with the purchased water provided to all member agencies. SDCWA’s supply mix includes desalinated seawater, imported water purchased from MWD (treated at MWD’s Skinner Filtration May 12, 2026 Item #10 Page 51 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-16 Plant in Riverside County), and through purchase agreements and exchanges with other agencies. SDCWA supplies delivered to CWMD are also treated at SDCWA’s Twin Oaks Water Treatment Plant in San Marcos and conveyed to CMWD through SDCWA aqueducts. 3.5 Climate Change Climate change results in higher temperatures, changes in precipitation, and decreased water supplies, all of which are currently affecting and expected to continue to affect Carlsbad. Impacts of climate change generally include increased water demand, increased risk of wildfire, a greater number of extreme heat days, and the decline or loss of plant and animal species. Climate change also has associated public health impacts. City residents who are already more vulnerable to health challenges are likely to be the most affected by climate change. These vulnerable populations tend to be the young and the old, the poor, and those who are already sick. Increases in extreme heat events can increase the risk of heat-related illness or death, or the worsening of chronic health conditions. Food scarcity and higher food prices from climate change impacts on agriculture can cause increased hunger and reduced availability of nutrition. The increased frequency of natural disasters such as floods, droughts, wildfires, and storm surges can cause injury or death, illness, and increases or shifts in infectious diseases (City of Carlsbad 2024). 3.5.1 Climate Action Plan and Energy The City of Carlsbad adopted a Climate Action Plan in 2015, which was recently updated in 2024 (City of Carlsbad 2024). The Climate Action Plan in part identifies actions to reduce the City’s greenhouse gas (GHG) emissions that contribute to climate change. According to the 2016 Greenhouse Gas Emissions Inventory, water contributed 1% of emissions and wastewater contributed less than one percent of the total emissions (CMWD 2024). As stated in Appendix C of the Climate Action Plan Update (City of Carlsbad 2024), CMWD’s local potable water distribution energy intensity is 15 kWh/acre-foot and recycled water treatment and distribution energy intensity is 299 kWh/acre-foot. The Climate Action Plan Update identifies actions to reduce GHG emissions, including those presented in Table 3-4, which are GHG reduction actions associated with water and wastewater facilities and operations. May 12, 2026 Item #10 Page 52 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-17 TABLE 3-4: WASTEWATER AND WATER GHG REDUCTION MEASURES Measure Action Measure W-1: Wastewater System Improvements – Focused on improvements to the wastewater system. Primary: Continue making improvements to the City of Carlsbad’s collection system, including but not limited to upgrading lift stations. Supportive: Explore system improvements based on the Supervisory control and data acquisition (SCADA) Master Plan. Measure W-2: Water System Improvements – Focused on improving CMWD’s potable and recycled water systems to increase energy efficiency and strengthen the reliability of local water supplies to meet community needs. Primary: Continue making improvements to CMWD’s potable and recycled water systems, including but not limited to expanding water reuse and using renewable energy to power facilities. Supportive: Continue to explore local water supply options and assess feasibility and cost to benefit ratio. Source: City of Carlsbad CAP 2024 3.5.2 Climate Change Vulnerability Analysis As an agency with limited local water supplies and located in a coastal area that could be subject to impacts from sea level rise, climate change is of concern to Carlsbad. In 2023, the City completed a Climate Change Vulnerability Assessment (City of Carlsbad 2023), evaluating how climate change may impact vulnerable community members, natural resources, critical facilities, buildings, services, and infrastructure in Carlsbad, which includes CMWD’s service area. The City anticipates experiencing several significant climate change vulnerabilities across multiple sectors. By 2100, Carlsbad expects to experience more extreme heat days, prolonged droughts, increased high wildfire risk days, increased susceptibility to landslides, worsening air quality, more frequent flooding, and up to 6.6 feet of sea level rise. Table 3-5 presents the potential climate change impacts to Carlsbad. TABLE 3-5: POTENTIAL IMPACTS OF CLIMATE CHANGE IN CARLSBAD Impact Expected EffectTemperature Rise in average maximum temperatures by 3.2° F to 4.0° F by 2050 and by 4.2° F to 7.2° F by 2100 Rainfall Wettest day every year will increase from 10% to 30% by the end of the century with more precipitation occurring during extreme events Heat Increase in extreme heat days by 22 days and warm nights are expected to increase by 73 nights Drought Increases in the length of dry spells Wildfires Increase in high wildfire risk days, frequency, and potential area burned from wildfires Landslides Greater susceptibility to landslides due to increasing precipitation variability and wildfires increase in frequency, area, and severity May 12, 2026 Item #10 Page 53 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-18 Impact Expected Effect Riverine and Stormwater Flooding More frequent flooding in low-lying areas and longer 100-year-floods due to changes in precipitation patterns Air Quality Worse air quality in the San Diego region due to increases in wildfires and maximum temperatures Sea Level Rise Up to 6.6 feet of sea level rise by 2100 Source: City of Carlsbad CAP 2023 The Climate Change Vulnerability Assessment uses a scoring matrix to prioritize vulnerable populations, natural and recreational resources, buildings and facilities, and infrastructure and critical facilities. Each item is evaluated based on the severity and likelihood of impact from a climate hazard (Impact Score) and the ability to adapt to that climate hazard (Adaptive Capacity Score). The Impact Score and Adaptive Capacity Score are then combined to form the Vulnerability Score, ranging from low (1-2) to high (4-5) (Table 3-6). TABLE 3-6: PRIORITIZED CLIMATE CHANGE VULNERABILITY ISSUES FOR CARLSBAD Climate Hazard Impact Score Adaptive Capacity Score Vulnerability Score Vulnerable Populations Extreme Heat High Medium 4-High Drought High Medium 4-High Wildfire High Medium 4-High Riverine and Stormwater Flooding Medium Low 4-High Air Quality High Low 5-High Sea Level Rise High Medium 4-High Natural and Recreational Resources Extreme Heat/Warm Nights High Low 5-High Drought High Low 5-High Wildfire High Medium 4-High Riverine and Stormwater Flooding High Medium 4-High Air Quality Medium Low 4-High Sea Level Rise High Medium 4-High Building and Facilities Extreme Heat/Warm Nights Medium Low 4-High May 12, 2026 Item #10 Page 54 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-19 Climate Hazard Impact Score Adaptive Capacity Score Vulnerability Score Sea Level Rises Medium Low 4-High Infrastructure and Critical Facilities Extreme Heat High Low 5-High Drought High Medium 4-High Riverine and Stormwater Flooding High Low 5-High Air Quality High Low 5-High Sea Level Rise Medium Low 4-High Source: City of Carlsbad CAP 2023 Following identification and prioritization of regional climate change vulnerabilities, the Climate Change Vulnerability Assessment identified programs, plans, and policies that help the community of Carlsbad become more resilient to climate hazards in Table 3-7. TABLE 3-7: EXISTING PROGRAMS, PLANS, AND POLICIES Existing and Planned Programs, Plans, and Policies Objectives Extreme Heat and Warm Nights San Diego County Aging and Independence Services Cool Zones and Fan Program Partnership between San Diego County Aging and Independence Services and San Diego Gas & Electric (SDG&E); provides designated cooling centers and distributes free electric fans to seniors and vulnerable residents without access to air conditioning. San Diego County Excessive Heat Response Plan (County of San Diego Health and Human Services Agency 2021) The San Diego County Health and Human Services Agency maintain an Excessive Heat Response Plan that includes an internal plan for coordinating public health resources during extreme heat events and a public-facing version that offers residents guidance and strategies to reduce heat-related risks. Carlsbad Cool Zone Program Carlsbad maintains cooling centers for residents during periods of extreme heat. SDG&E Medical Baseline Allowance Program (SDG&E 2021) Provides additional electricity at a discounted rate to customers with a qualifying medical need. Riverine and Stormwater Flooding, Droughts, and Sea Level Rise Impacts CMWD 2020 UWMP UWMP includes a discussion of climate change impacts on the public water system. Claude “Bud” Lewis Carlsbad Desalination Plant Provides a “drought-proof” source of drinking water to water utilities throughout the San Diego region. Olivenhain Municipal Water District (OMWD) 2020 UWMP Includes a discussion of climate change impacts on the public water system. May 12, 2026 Item #10 Page 55 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-20 Existing and Planned Programs, Plans, and Policies Objectives OMWD Potable Water and Recycled Water Master Plan Incorporates findings from the San Diego County Water Authority’s 2013 climate change analysis to inform water demand projections. North San Diego Water Reuse Coalition (NSDWRC) Partnership between northern San Diego County water and wastewater agencies working to identify areas with available wastewater supply and demand for recycled water, aiming to create a drought-proof source of water and reduce discharge of wastewater to the ocean. San Diego Integrated Regional Water Management Plan: Integrated Flood Management Planning Report (County of San Diego 2013) The regional study provides guidance for integrated flood management and offers planning-level risk analysis and general strategies to support decision-making. City of Carlsbad Local Coastal Program Land Use Plan 2019 (Carlsbad 2019) Provides several land use policies that support sea level rise adaptation efforts. Agua Hedionda Watershed Management Plan (City of Vista 2008) Carlsbad assisted with the development of this plan, which addresses water quality, habitat, erosion, and hazard concerns within the watershed. City of Carlsbad Local Coastal Program (Draft) Identifies coastal areas that are more susceptible to damage from a climate change driven increase in sea level and includes possible adaptation strategies Carlsbad can implement to prevent future coastal flooding and erosion. SANDAG Regional Beach Sand Project Placed 1.5 million cubic yards of beach quality sand on regional beaches in the fall of 2021. The Carlsbad Opportunistic Sand Program The Carlsbad Opportunistic Sand Program was launched in 2006 to lead the City’s sand acquisition effort. Wildfire Impacts Carlsbad Hazard Reduction Program Ensures compliance with AB 38 by requiring inspections of properties in High or Very High Fire Severity Zones during real estate transactions to verify defensible space and vegetation management standards Carlsbad Fire Department’s Fire Prevention Bureau (Carlsbad Fire Department 2022) Mitigates risks within the community by providing education about the benefits of proper safety practices and reduction of all types of hazardous conditions. SDG&E Wildfire Mitigation Plan (SDG&E 2021) Provides mitigation efforts to reduce risk of and increase wildfire resilience San Diego County Resilience Review Report: Wildland Fire (County of San Diego 2019) Identifies gaps in San Diego County’s approach to reducing community risk from wildfire. SDG&E Public Safety Power Shutoff Notifications and Supportive Services Operates a notification system to alert customers of Public Safety Power Shutoff during periods of elevated wildfire risk. May 12, 2026 Item #10 Page 56 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 3: System Description 3-21 Existing and Planned Programs, Plans, and Policies Objectives Multiple Climate Hazard Impacts San Diego County Multi-Jurisdictional Hazard Mitigation Plan (County of San Diego 2018) Assesses hazards within San Diego County, including Carlsbad, and identifies mitigation strategies that reduce or eliminate long-term risks to people and property from climate hazards. San Diego County Emergency Operations Plan (County of San Diego 2018) Summarizes an emergency management system which enables a planned response to a variety of disaster situations. Carlsbad You Are Not Alone Program Free service for seniors who live alone and would benefit from a daily check. City of Carlsbad Emergency Operations Plan (City of Carlsbad 2021) Provides protocols to prevent, protect, mitigate, respond, and recover from the effects of disasters. Ready Carlsbad Business Alliance Promotes business emergency preparedness and supports the continuity of operations and community recovery. Carlsbad Emergency Response Team Trains volunteers in basic first aid, light search and rescue, and small fire suppression. Carlsbad Emergency Operations Center Serves as a centralized hub for coordinating support among fire, police, public works, and other response agencies, as well as managing public emergency alerts, evacuations, and shelter operations during large-scale emergencies. Habitat Management Plan for Natural Communities in the City of Carlsbad Identifies opportunities for the City to work collaboratively with federal and state wildlife agencies to preserve the diversity of habitat and sensitive biological resources within the City. Alert San Diego Emergency Notification System San Diego County uses a regional notification system to send telephone notifications to residents and businesses within the County impacted by an emergency or disaster. Carlsbad General Plan Public Safey Element Provides policy direction that supports laws and regulation of future development that will minimize the risk of personal injury, loss of life, property damage, and environmental damage associated with natural and human-caused hazards. Source: City of Carlsbad CAP 2023 May 12, 2026 Item #10 Page 57 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-1 4. WATER USE This section addresses current and projected system water use for CMWD’s service area. System water use consists of water used by CMWD, water sold to others, and additional water uses and losses. Table 4-1 and Table 4-2 present the historic and current water sales, respectively, including demands from low-income households. Figure 4-1 shows historical, current, and projected water use within CMWD’s service area by use type, with the approximate population within CMWD’s service area (estimated as a percentage of the City of Carlsbad population, based on area). FIGURE 4-1: HISTORICAL, CURRENT, AND PROJECTED WATER USE (AFY) 4.1 Past and Current Water Use Historical water use and current water use are based on metering data and includes water used by CMWD customers, along with additional water uses and losses. Table 4-1 presents historical and current potable and non-potable use by customer sector from 2005-2025. The water use sectors are characterized in the description that follows. 0 20,000 40,000 60,000 80,000 100,000 120,000 140,000 0 5,000 10,000 15,000 20,000 25,000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 Se r v i c e A r e a P o p u l a t i o n ( a p p r o x ) Wa t e r U s e ( A F Y ) Single Family Multi-Family Commericial Industrial Institutional Agricultural Landscape Water Loss Recycled Water Population May 12, 2026 Item #10 Page 58 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-2 TABLE 4-1: HISTORICAL AND CURRENT WATER USE (AFY) (2005-2025) Water Use Sector 2005 2010 2015 2020 2025 Single Family Residential 9,009 7,965 6,995 7,695 7,254 Multi-Family Residential 1,963 1,769 1,621 1,762 1,862 Commercial 3,695 2,886 2,775 2,098 2,636 Industrial - - 6 19 38 Institutional 162 122 105 102 122 Agricultural 716 374 181 162 145 Landscape 4,214 1,914 1,583 1,528 1,502 Water Loss and Unbilled 1,373 1,094 968 509 903 Recycled Water 1,966 3,500 3,793 3,765 3,708 CMWD’s potable water system serves water to four major sectors 1) Residential (single family and multi-family); 2) Commercial/Industrial/Institutional (CII) (reported as three separate sectors); 3) Agricultural; and 4) Landscape. A brief description of each sector and factors affecting their water use is provided here. Water use by tourism and temporary residents are not explicitly reported in a use category of their own even though they create a substantial demand for water within CMWD’s service area; their impacts are masked within the residential and commercial sectors. A brief narrative of the tourism sector in CMWD’s service area is provided in Section 4.1.3. In addition to potable water, CMWD also provides recycled water to some of its customers. Current and projected recycled water demands are summarized with a detailed discussion of CMWD’s recycled water supplies and demands in Section 6 System Supplies. Table 4-2 presents current potable and recycled water demands of the CMWD customer sectors in 2025. 4.1.1 Single-Family Residential and Multi-Family Residential Residential water use represents the largest water use category for CMWD and includes indoor and outdoor uses for both single-family and multi-family customers. Indoor water use includes sanitation, bathing, laundering, cooking, and drinking, while the majority of outdoor residential water use satisfies landscaping irrigation needs. Other minor outdoor residential water uses include car washing, surface cleaning, and similar activities. Total residential water use is anticipated to increase over time as CMWD’s service area reaches residential buildout, though ongoing and even increased culture of conservation and potential water use restrictions are likely to result in a lower per-capita increase in demand compared to historical growth. 4.1.2 Agricultural Agricultural water use has been decreasing in Carlsbad for the last two decades and it currently represents a very small portion of CMWD’s water demand. In 1991 CMWD sold 1,744 AF to agriculture. By 2000, the agriculture consumption had declined to 1,204 AF May 12, 2026 Item #10 Page 59 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-3 and further dropped to 420 AF in 2010 and 145 AF in 2025. Agricultural demands are projected to remain constant over the planning horizon of this UWMP. The Agricultural sector experiences wide seasonal fluctuations due to weather conditions and timing of the growing seasons, and consists primarily of commercial strawberry and flower fields, and wholesale nursery operations. Several properties that are currently being used for agriculture have the potential to be redeveloped into residential uses. However, the timing of these potential conversions is uncertain and cannot be reliably forecast at this time. TABLE 4-2: 2025ACTUAL TOTAL USES FOR POTABLE AND NON-POTABLE WATER (AFY) DWR Submittal Table 4-1 Retail: 2025 Actual Total Uses for Potable and Non-Potable Water Water Code Section 10631(d)(1) Use Type 2025 Actual Water Use Level of Treatment When Delivered Volume (AF) Single Family Potable 7,254 Multi-Family Potable 1,862 Commercial Potable 2,636 Industrial Potable 38 Institutional/Governmental Potable 122 Agricultural Potable 145 Landscape (Potable) Potable 1,502 Distribution System Water Loss (Real + Apparent loss) Potable 863 Other (Unbilled Metered + Unbilled Unmetered) Potable 40 Landscape (Recycled) Non-Potable 3,708 Subtotal Potable 14,462 Subtotal Non-Potable 3,708 Total 18,170 Notes: Actual water demands are based on CMWD’s 2025 billing data and the AWWA water loss audit. Billing data are reported in calendar year. The AWWA water loss audit was completed for FY2025 (July 1, 2024 – June 30, 2025) as the most recent water loss data available. Other potable use includes "unbilled unmetered consumption" as reported in the FY2025 AWWA water loss audit. Temporary potable meters billing category was incorporated into the Single-Family use type. Fire protection billing category was incorporated into the Institutional/ Governmental use type. Non-potable landscape represents recycled water demands, which includes agricultural, commercial, irrigation, and industrial customers. Recycled water demands also include temporary recycled water meters. May 12, 2026 Item #10 Page 60 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-4 4.1.3 Commercial/ Industrial/ Institutional/ Government Commercial water use generally consists of incidental uses necessary for the operation of a business or institution, such as drinking, sanitation, and landscape irrigation. Major commercial water users include service industries such as restaurants, car washes, laundries, recreation and hotels. Statistics indicate that almost 60% of Carlsbad’s employment base is in the commercial sector. This sector is anticipated to grow in the future, as infill development in the Carlsbad Village for commercial and continued development in the eastern Business Park area for industrial is implemented, and additional properties are developed to support the City’s growing tourism economy. Industrial water use consists of a wide range of uses, including produce processing and small-scale equipment cooling, sanitation and air conditioning. Water-intensive industrial uses in Carlsbad, such as electronics manufacturing and biotech research, typically require smaller amounts of water when compared to other water-intensive industries found elsewhere in Southern California, such as petroleum refineries, and canneries. Institutional water use consists primarily of schools and churches within the service area. Water use characteristics tend to be similar to commercial uses but based on average daily attendance. Outdoor use also tends to be somewhat higher for landscaped areas and recreational fields. However, many of these areas tend to be metered separately and categorized as irrigation. 4.1.4 Tourism and Temporary Residents Included in CMWD’s Residential and CII water uses are tourism-related water demands. With a permanent population estimated at 117,315 in 2024 (Woodard & Curran 2025), the City’s population more than doubles on a monthly basis when considering temporary residents. Visitors are drawn to Carlsbad for its proximity to attractions in San Diego County, Legoland, nearby state beaches, and the general lifestyle that makes Southern California a tourist destination. The tourism industry in Carlsbad affects water usage by not only the number of temporary residents but also through the expansion of service industries and attractions, which tend to be larger outdoor water users. Tourism peaks during summer months, particularly July and August, but is high throughout the year. The peaking experienced in summer months affects seasonal demand and water system peaking. Population forecasts do not specifically account for tourism; however, tourism is reflected in the economic forecasts and causes per capita use to increase. Tourism can also increase per capita demands because out-of-state tourists are less likely to be as conscientious with their water use as locals. Tourists may not be familiar with water-wise practices (e.g., shorter showers, May 12, 2026 Item #10 Page 61 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-5 turning off faucets when brushing teeth) or are in “vacation mode” and not actively aware of their water use. They may also be engaging in inherently water-heavy tourism-based activities. As home rental options such as VRBO and Airbnb grow in popularity, water use by tourists has been increasingly reflected in CMWD’s residential sector. In 2025, within CMWD’s service area, approximately 2,215 residential units were estimated to be seasonally occupied by tourists (Woodard & Curran 2025). This number was estimated according to DWR-recommended methods by evaluating hourly advanced meter data of single family and multi-family CMWD customers to determine occupancy rates. Of the 24,403 housing units evaluated, 85% were estimated to be occupied by permanent homeowners, 6% by renters, and 9% were estimated to be seasonally occupied by tourists. 4.1.5 Landscape Landscape irrigation is the third largest water use in CMWD’s service area, just behind commercial water use, and demands are strongly influenced by seasonal differences and annual rainfall. Development within the City of Carlsbad over the last decade and a half has brought about the creation of large amounts of irrigated areas with various uses, including medians, slopes and parkways, which used 29% potable water (1,502 AF) and 71% recycled water (3,708 AF) in 2025 (see Table 4-2). The City of Carlsbad adopted a Landscape Manual in November 1990 to assist development applicants and landscape architects in understanding the City’s policies toward landscaping. Specifically, the manual requires that irrigation systems be designed to provide the optimum amount of water for plant growth without causing soil erosion or runoff. At the same time, it requires that landscape design include water conservation and alternative (non-potable) water sources as primary criteria. This manual was updated in 2016 and incorporates Carlsbad Municipal Code Chapter 18.50 – Water Efficient Landscape Ordinance (WELO), among other changes. In May 2010, the City of Carlsbad adopted the WELO in accordance with the State’s Water Conservation in Landscaping Act of 2006 (Assembly Bill 1881), which promotes consistency in landscape regulations among land use authorities throughout San Diego County. The State’s Model Water Efficient Landscape Ordinance (MWELO) was subsequently updated in 2015. The City is in the process of updating this manual to reflect changes in State regulations. The regulations reflect improvements for landscape and irrigation design plans, irrigation technologies, and water management for achievable water savings. Total irrigated land use areas, including roadways and parks, is anticipated to remain relatively constant between 2015 and 2040, decreasing by only 8 acres, or approximately 0.2%. May 12, 2026 Item #10 Page 62 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-6 Landscape irrigation is also a substantial recycled water use within CMWD’s service area. Recycled water is regulated by CMWD’s Reclamation Rules and Regulations for Construction of Reclaimed Water Mains (1993) and Mandatory Use Ordinance (CMWD Water Code Title 3.08.020), the San Diego Regional Water Quality Control Board’s reclamation permits and waste discharge requirements for CMWD’s Carlsbad WRF (Order No. 2001-352, as amended by Order Nos. R9-2012-0027 and R9-2016-0183), and VWD’s Meadowlark WRF (Order No. R9-2007-0018), LWWD’s Gafner WRF (Order No. R9-2004-0223), and California’s Title 22 regulations. Total recycled water use, including golf courses and industrial purposes, represents about 21% of total water use in CMWD’s service area for 2025. Recycled water use tends to be lower in the winter months because of wet weather and less irrigation demand for landscape, the primary use for recycled water. With the recent completion of the Phase III Recycled Water Project, recycled water sales are expected to peak at the delivery capacity, which is estimated at 4,218 AFY. The use of recycled water for landscaping irrigation may increase slightly within CMWD’s service area in response to new requirements. AB 1572 was added to the Water Code (Section 10608.14) in 2023, banning the use of potable water to irrigate non-functional turf. Beginning in 2027, and phasing in over three years, potable water will no longer be allowed to be used for the purposes of irrigating turf grass that is not functionally used for recreational and community purposes. The non-functional turf applies to properties owned by governments or public agencies, commercial, institutional and industrial properties, and common areas of homeowners’ associations and community organizations. Many of these customer types already use recycled water for landscape irrigation within CMWD’s service area, but limited expansion of recycled water for landscape irrigation may still occur. Recycled water use is addressed in greater detail in Section 6 System Supplies. 4.1.6 Additional Water Uses Additional water uses include fire protection and other authorized uses. Examples include water consumed by CMWD for operations, water main flushing, sewer cleaning, or fire flow tests. CMWD has improved its tracking and documentation of this water through coordination with the City’s Fire Department. 4.1.7 Sales to Other Agencies CMWD does not currently sell potable water to other agencies, nor does it anticipate doing so in the future; however, water could be sold or supplied to other agencies during emergency SDCWA shutdowns if needed. CMWD has its own local potable water supply through a purchase agreement with SDCWA to purchase desalinated seawater from the Claude “Bud” Lewis Carlsbad Desalination Plant (Carlsbad Desalination Plant) blended May 12, 2026 Item #10 Page 63 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-7 with other SDCWA supply. CMWD sells a portion of the recycled water it produces at the Carlsbad WRF to customers of neighboring agencies to help meet their non-potable water demands, but does not sell recycled water directly to any other agency. In 2025, CMWD sold 25.3 AF of recycled water through seven meters (customers) located within the City, but within VWD’s service area. 4.1.8 Distribution System Losses System losses are water losses through leaks and breaks (referred to as “real” losses). Losses also include customer metering inaccuracies, data handling errors, and unauthorized consumption (referred to as “apparent” losses), although these losses are relatively small. As required by the 2025 UWMP Guidebook, CMWD completed a water loss audit using the American Water Works Association (AWWA) Water Audit methodology (see Appendix F). Apparent losses (unauthorized consumption and metering inaccuracies) were calculated as 268 AFY, while Real Losses were calculated at 595 AFY, for a total loss of 863 AFY. Unlike the rest of the data presented in this UWMP, the Water Loss Audit was completed for Fiscal Year 2025, while the rest of the UWMP reports data from calendar year 2025. 2025 water losses are therefore considered approximate. Calculated water losses for CMWD’s water system for the previous five years of reporting are shown in Table 4-3. Based on average annual losses, CMWD anticipates that water losses will represent 5% of total potable use, calculated as the volume of water loss divided by the total volume of water produced. Projected water losses presented in Table 4-8 are estimated using this proportion. TABLE 4-3: REPORTED WATER LOSS (2020 – 2025) Reporting Period Volume of Water Loss (Real + Apparent Losses) (AF) January 1, 2020 – December 31,2020 470.870 January 1, 2021 – December 31, 2021 578.220 January 1, 2022 – December 31, 2022 841.294 January 1, 2023 – December 31, 2023 635.270 July 1, 2023 – June 30, 2024 762.429 July 1, 2024 – June 30, 2025 863.026 Progress Toward Meeting the Water Loss Performance Standards The SWRCB adopted its Water Loss Performance Standards in 2022, and they became effective in 2023. Under these regulations, retail water suppliers with more than 200 service connections must meet water-loss thresholds that are specific to their individual May 12, 2026 Item #10 Page 64 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-8 systems. State compliance evaluations will begin in 2028. In accordance with Water Code Section 10631(d)(3)(C), CMWD must include information in its 2025 UWMP demonstrating whether it achieved its applicable water loss standard. As shown in Table 4-4, CMWD has submitted annual water loss audit reports to DWR for the past five years. The associated AWWA audit worksheets for each reporting year are included in Appendix F. TABLE 4-4: RETAIL WATER LOSS AUDIT REPORTING DWR Table 4-5 Retail: Retail Water Loss Audit Reporting Public Water System ID # Reporting Period Submitted to DWR Water Loss Audit Program CA3710005 2020 Yes 2021 Yes 2022 Yes 2023 Yes 2024* Yes *Fiscal Year July 1, 2024– June 30, 2025 Table 4-5 summarizes CMWD’s progress toward meeting the 2028 performance standards, based on the FY 2025 AWWA Water Loss Audit. For 2028, CMWD’s Real Water Loss Standard is 13 gallons per service connection per day (GPSCD), and its Apparent Water Loss Standard is 8.3 GPSCD. In FY 2024, CMWD reported real losses of 27.2 GPSCD and apparent losses of 8.4 GPSCD. CMWD has not yet achieved its 2028 real loss standard or 2028 apparent loss standard. May 12, 2026 Item #10 Page 65 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 4 : W a t e r U s e 4- 9 TA B L E 4- 5 : PR O G R E S S T O W A R D 2 0 2 8 W A T E R L O S S S T A N D A R D Su b m i t t a l T a b l e 4 -6 R e t a i l : P r o g r e s s T o w a r d s 2 0 2 8 W a t e r L o s s S t a n d a r d Wa t e r C o d e S e c t i o n 1 0 6 3 1 ( d ) ( 3 ) ( C ) Pu b l i c W a t e r Sy s t e m I D # Re p o r t e d i n Su b m i t t a l Ta b l e 2 -1 R Di d t h e W a t e r Bo a r d Ca l c u l a t e a Wa t e r L o s s St a n d a r d f o r th i s P u b l i c Wa t e r Sy s t e m ? ( y / n ) If n o , S u p p l i e r wi l l n o t co m p l e t e t h i s ro w . Re a l W a t e r L o s s Ap p a r e n t W a t e r L o s s SW R C B St a n d a r d Mo s t R e c e n t A W W A W a t e r Lo s s A u d i t Re a l Wa t e r Lo s s Pe r Un i t pe r Da y SW R C B St a n d a r d Mo s t R e c e n t A W W A Wa t e r L o s s A u d i t Ap p a r e n t Wa t e r Lo s s P e r Un i t p e r Da y 20 2 8 Re a l Wa t e r Lo s s St a n d a r d pe r U n i t pe r d a y Un i t s f o r R e a l Wa t e r L o s s Dr o p d o w n li s t Nu m b e r o f Un i t s (C o n n e c t i o n s o r Mi l e s co r r e s p o n d i n g wi t h u n i t s se l e c t e d ) Vo l u m e of T o t a l Re a l L o s s (f r o m AW W A Wa t e r Lo s s Au d i t ) (A F ) 20 2 8 Ap p a r e n t Wa t e r Lo s s St a n d a r d pe r U n i t pe r D a y Un i t s f o r Ap p a r e n t Wa t e r L o s s Nu m b e r o f Co n n e c t i o n s Vo l u m e o f To t a l Ap p a r e n t Lo s s (f r o m AW W A Wa t e r Lo s s Au d i t ) (A F ) CA 3 7 1 0 0 0 5 Ye s 13 Ga l l o n s p e r Se r v i c e Co n n e c t i o n pe r D a y (G P S C D ) 28 , 2 8 3 86 3 . 0 2 6 27 . 2 8. 3 Ga l l o n s p e r Se r v i c e Co n n e c t i o n pe r D a y (G P S C D ) 28 , 2 8 3 26 7 . 5 8 5 8.4 So u r c e : Wa t e r B o a r d ' s C a l c u l a t e d W a t e r L o s s S t a n d a r d s , a v a i l a b l e o n l i n e a t : ht t p s : / / v i e w . o f f i c e a p p s . l i v e . c o m / o p / v i e w . a s p x ? s r c = h t t p s % 3 A % 2 F % 2 F w w w . w a t e r b o a r d s . c a . g o v % 2 F c o n s e r v a t i o n % 2 F d o c s % 2 F w a t e r l o s s c o n t r ol %2 F s t a n d a r d s -re l e a s e d . x l s x & w d O r i g i n = B R O W S E L I N K May 12, 2026 Item #10 Page 66 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-10 4.2 Projected Water Use This section presents CMWD’s projected potable water use in five-year intervals, from 2030 to 2050, including water used by CMWD customers, water sold to others, and additional water uses and losses. Demand projections presented in the 2025 UWMP are based on CMWD’s monthly consumption reports by customer class from 2014 through 2025, annual water loss audit reports, and the City of Carlsbad local housing units forecast. The population projections presented in Section 3 System Description incorporate land use changes and other local economic and demographic factors, and provide an appropriate basis for demand projection calculations. Historical demands by customer class and customized potable water consumption growth rates for each customer class were analyzed based on anticipated growth behaviors within the CMWD service area. Connection types were organized into the same customer class categories as the 2025 UWMP to estimate a long-term growth trend for 2030 through 2050. Growth rates were customized based on each customer class, as shown in Table 4-6. Most growth rates use an average from the past five years (2020-2025) of consumption. Residential demand projections, however, were based on the City of Carlsbad’s updated local housing unit projections and expected residential buildout by 2035 (See Section 3.1.4). CMWD is assuming maximum population density by 2035 as a conservative estimate when forecasting demand. The residential demand was based on City of Carlsbad local housing unit projections and actual water consumption per housing unit in 2020 and 2025. A proportional allocation method was used to distinguish water use between single-family and multi-family accounts in the residential sector forecast. First, the proportion of multi-family to total residential in the current year was identified (20.4%), then the expected annual growth in the multi-family sector (0.2%) was calculated based on historic (2015-2025) trends and applied to future annual water consumption in the residential customer class. The remainder of the total future residential water consumption was allocated to the single-family sector. Agricultural demand was conservatively assumed to stay constant, rather than follow the average trend from the past five years. Historical annual changes in agricultural demand have varied widely and the average from the past five years was negative four percent growth, which, if applied to 2050 projections, would equate to near zero future agricultural demands, which is likely unrealistic. Holding agricultural demand steady allows for a conservative, non-zero demand forecast in this customer class. Recycled water demands are based on the available recycled water infrastructure and connections available through the Phase III Recycled Water Project. Currently, there are still opportunities to connect new customers, thus a growth rate comparable to the average from the past five years (2020-2025) is assumed; however, it is assumed that these May 12, 2026 Item #10 Page 67 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-11 opportunities will be met by 2035 and recycled water demand will be constant through 2050. An annual growth rate of 2% is assumed through 2035. Water loss as a percentage of total potable demand between 2021-2023 averaged 5%. To meet the 2028 water loss standard, CMWD will reduce its water loss by about half (from 27 to 13 GPSCD). The historic average of 5% was halved (2.5%), then used to calculate future water loss as a percentage of projected potable demands. Likewise, projected unmetered consumption was estimated based on the average percentage of unbilled unmetered consumption to total water supplied, as reported on the AWWA Water Loss audit reports between 2020 and 2025; the average of 0.27% was then used to calculated future unmetered consumption as a percentage of projected potable demands. TABLE 4-6: GROWTH RATE CALCULATIONS FOR EACH CUSTOMER CLASS Customer Class Projection Growth Rate Growth Rate Calculation Residential 9 - 12% through 2035 then 0% through 2050 Based on housing unit projections from the City of Carlsbad Planning Department, which assume buildout and max population by 2035 Commercial, Industrial & Institutional (CII) 1% Average growth rate from the past five years (2020-2024) for combined connection types Irrigation -2% Average growth rate from the past five years (2020-2024) Recycled Water 2% through 2035 then 0% through 2050 Average growth rate from the past five years (2020-2024) through 2035 then no growth because recycled water demands are expected to use all available connections and supply availability by 2035. Recycled water capacity is 4,218 AFY. Water Loss --- Half of historic average water loss percentage (5%) of total potable demand in order to meet 2028 water loss standard Unmetered --- Average unmetered percentage from past six years (2020-2025): estimated 0.24% of total potable demand. Agricultural 0% Assuming no change compared to average demand from the past five years (2020-2024) May 12, 2026 Item #10 Page 68 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-12 4.2.1 Climate Change Effects on Water Use As part of the preparation of its Draft 2025 UWMP, SDCWA evaluated the potential impacts of projected climate change on future water demands (SDCWA 2025). Because CMWD receives its potable water from the SDCWA, the SDCWA analysis is informative of what CMWD can expect in terms of plausible changes on projected water use under climate change conditions. The SDCWA analysis uses climate projection data from the LOCA2-Hybrid California dataset to represent a range of future temperature and precipitation conditions. SDCWA evaluated several climate scenarios, which included warmer and wetter, warmer and drier, cooler and wetter, cooler and drier, and moderate conditions, for mid-century (2045-2065) and late century (2080-2100) periods. These scenarios were then applied to SDCWA’s regional water demand model. Results indicate that warming temperatures are the primary cause of increased water demand, especially for outdoor irrigation, while changes in precipitation have less of an impact. For the mid-century period, projected regional water demand increases by 0.4% to 3.3% compared to historical normal conditions. Under more extreme late-century climate scenarios, the projected demand increases range from 2.1% to 11%. Overall, the results indicate that climate change is expected to gradually increase regional water demand over time, reinforcing the importance of continued water use efficiency and a diversified portfolio to support long-term water supply reliability. 4.2.2 Future Conservation Savings Passive savings are reflected in CMWD’s water use and incorporated into the demand projections presented in the 2025 UWMP. CMWD is actively encouraging customers to reduce potable water use through the increased use of recycled water, installation of water-wise landscaping, replacement of fixtures with water-saving and low-flow devices, and outreach and educational campaigns. Section 9 Demand Management Measures provides details on CMWD’s efforts to continue its long history of encouraging water conservation. Compliance with applicable regulations and codes requiring use of low-flow fixtures in new construction will result in passive savings. Base conservation savings associated with Water Shortage Contingency Plan (WSCP) Level 1 are assumed to be integrated into historic use and, therefore, into the demand projections. Over the past five years (2020-2025), CMWD has been in Level 1 for four out of the five years and Level 2 for one. Because the majority of the past five-year average was within Level 1 conservation savings, it can be conservatively assumed that a minimum of WSCP Level 1 conservation savings are already included given the conservation mindset and ongoing normal consumption patterns. Additionally, CMWD maintains active WSCP Level 1 implementation even during normal conditions; therefore, it can be May 12, 2026 Item #10 Page 69 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-13 assumed that WSCP Level 1 savings will be active through 2050. Further description of conservation savings from the WSCP can be found in Section 8. TABLE 4-7: INCLUSION IN WATER USE PROJECTIONS DWR Submittal Table 4-3 Retail: Inclusion in Water Use Projections Water Code Section 10631 (a), 10631 (d)(4)(A), and 10631 (d)(4)(B) Are Future Water Savings Included in Projections? Yes If "Yes" to above, state the section or page number, in the cell to the right, where citations of the codes, ordinances, etc. utilized in demand projections are found. Sections 4.2.2 and 5.2 Are Lower Income Residential Demands Included In Projections? Yes On June 21, 2005, CMWD’s Board of Directors adopted Ordinance No. 43, now codified in the CMWD Water Code, Title 3. This ordinance, also referred to as CMWD’s Mandatory Use Ordinance, requires customers to use recycled water “wherever it has determined that its use is economically justified, financially and technically feasible, and consistent with legal requirements, preservation of public health, safety and welfare, and the environment.” As a result of this ordinance, new development is prepared to convert to recycled water for irrigation purposes once recycled water becomes accessible. CMWD’s ability to meet potential customers’ recycled water demands now and in the future has been included in its recycled water use and recycled water supply projections. As recycled water use has increased, CMWD’s per capita potable water use has decreased, helping to achieve its SBx7-7 targets in 2020. In addition to potable water use savings achieved through conversion to recycled water, CMWD anticipates water savings resulting from compliance with water efficiency regulations. A number of regulatory changes have been made in recent years to encourage or mandate the use of low-flow and efficient plumbing fixtures, along with improvements to building standards to encourage green building that is more water efficient. These changes include, but are not limited to, AB 715 (efficient toilets and urinals) and SB 407 (retrofitting for efficient fixtures). CMWD has successfully taken measures to reduce per capita water use since the Water Conservation Act of 2009 was enacted. CMWD’s per capital water use was below its SB X7-7 interim target of 233 GPCD in 2015 and its 2020 target of 207 GPCD (see Chapter 5). New indoor and outdoor water use regulatory standards were developed under SB 606 and AB 1668 and adopted in 2024. Under these regulations, CMWD is required to calculate an annual Urban Water Use Objective (UWUO) using State‑prescribed standards for residential indoor and outdoor water use, commercial, industrial, and institutional (CII) May 12, 2026 Item #10 Page 70 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-14 landscape efficiency, and distribution system water loss. CMWD is required to report its calculated objective and actual water use annually beginning in 2024 to the State Water Resources Control Board, with UWUO compliance evaluated beginning in 2027. Conservation measures implemented by CMWD, which have helped to meet SB X7-7 targets and will help to meet its UWUO, include installation of water efficient fixtures and turf replacement, as described in Section 9 Demand Management Measures. New development in CWMD’s service area will be constructed compliant with all applicable codes, and mandatory retrofits will be implemented, as applicable (e.g., dedicated irrigation meters). The reduced water use resulting from these codes and regulations have been incorporated into CMWD’s demand projections because they are reflected in the decreased per capita demands of the SB X7-7 targets. SB X7-7 compliance is discussed in greater detail in Section 5 SB X7-7 Targets and Reporting. Because much of the existing development in the City of Carlsbad is relatively new, many residences, commercial buildings, and other facilities already use lower flow devices, and there are limited opportunities or need to retrofit existing structures to further improve water use efficiency to increase passive savings for existing development. Redevelopment projects in older areas of the city will also incorporate conservation design measures and landscaping. 4.2.3 Water Use for Lower Income Households CMWD does not keep direct records of which customers are lower income households, but water use associated with lower income households is already incorporated into the overall demand projections for CMWD’s service area. Because these customers are distributed throughout the community and are served through the same retail water system as all other customer classes, their anticipated water needs are inherently reflected in the total residential water demand estimates. See Section 3.1.4 Population and Demographics for additional details on disadvantaged communities. May 12, 2026 Item #10 Page 71 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-15 TABLE 4-8: TOTAL USES OF POTABLE AND NON-POTABLE WATER - PROJECTED (2030 – 2050) DWR Table 4-2 Retail: Total Uses of Potable, and Non-Potable Water - Projected Use Type Projected Water Use (AF) Level of Treatment 2030 2035 2040 2045 2050 Single Family Potable 7,897 8,716 8,716 8,716 8,716 Multi-Family Potable 2,128 2,464 2,464 2,464 2,464 Commercial Potable 2,913 3,066 3,226 3,395 3,573 Industrial Potable 38 40 42 44 46 Institutional/Governmental Potable 145 152 160 169 177 Agricultural Potable 163 163 163 163 163 Landscape Potable 1,227 1,136 1,052 974 902 Distribution System Water Loss (Real + Apparent Loss) Potable 363 393 396 398 401 Other (Unbilled metered + unbilled unmetered) Potable 41 44 44 45 45 Landscape (Recycled) Non-Potable 3,898 4,218 4,218 4,218 4,218 Subtotal Potable 14,915 16,174 16,263 16,368 16,487 Subtotal Non-Potable 3,898 4,218 4,218 4,218 4,218 Total 18,813 20,392 20,481 20,586 20,705 4.2.4 Projected Total Water Use and Demand Provided to Wholesaler SDCWA currently provides the majority of potable water distributed by CMWD. The projected amount of water that CMWD expects to purchase from SDCWA to meet water demands in the future is considered in Section 6 System Supplies. Table 4-9 provides a summary of the total projected normal year water demand for CMWD. Estimated changes in demand resulting from single or multiple dry years are provided in Section 7 Water Supply Reliability. CMWD’s current and projected demands on SDCWA potable water are equal to the total potable water demands presented in Table 4-8, less local recycled water supplies and less the 2,500 AFY desalinated seawater that CMWD receives from the Carlsbad Desalination Plant via a Take or Pay agreement with SDCWA. May 12, 2026 Item #10 Page 72 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 4: Water Use 4-16 TABLE 4-9: TOTAL PROJECTED WATER DEMANDS ON WHOLESALER (AF) 2030 2035 2040 2045 2050 12,415 13,674 13,763 13,868 13,987 May 12, 2026 Item #10 Page 73 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 5: SB X7-7 Targets and Reporting 5-1 5. SB X7-7 TARGETS AND REPORTING The Water Conservation Act of 2009 (also known as SB X7-7) was signed into law in November 2009 as part of a comprehensive water legislation package. SB X7-7 set a goal of achieving a 20% reduction in urban per capita water use statewide by 2020. DWR developed technical methodologies to guide the consistent development by urban water suppliers of their baseline per capita water use and targets. These baselines and targets were first reported in the 2010 UWMPs and revised in the 2015 and 2020 UWMPs. The 2025 Guidebook requires that all urban water retailers report their progress in meeting their 2020 target. 5.1 Overview The reporting requirements for the 2025 UWMP cycle vary depending on whether an urban water supplier was classified as an urban retail water supplier in 2020, met their 2020 target, or underwent a merger or consolidation since 2020: • Supplier Was Not an Urban Retail Water Supplier in 2020: Urban water suppliers that first met the definition of an urban retail water supplier after 2020 were not subject to SB X7-7 or UWMP requirements during the 2020 reporting cycle. These suppliers must indicate that they were not an urban retail water supplier during or before the 2020 UWMP reporting cycle. • Supplier Met 2020 Target in 2020: Suppliers that met their 2020 target in 2020 must submit Submittal Table 5-1R and include both their '2020 Target' and '2020 Actual GPCD' to verify compliance with SB X7-7 requirements. This information can be obtained from the supplier’s 2020 UWMP. This reporting requirement is applicable to CMWD. • Supplier Did Not Meet 2020 Target in 2020 – No Change to Service Area: If a retail supplier did not achieve its 2020 target in 2020 and has had no changes to its service area since then, the supplier must compare its actual 2025 GPCD with the 2020 target to report progress toward meeting that target in its 2025 UWMP. These suppliers will complete Submittal Table 5-1R to document progress toward the 2020 target in 2025. They must also complete the SB X7-7 2025 Compliance Form to show the calculations used to determine the 2025 GPCD. May 12, 2026 Item #10 Page 74 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 5: SB X7-7 Targets and Reporting 5-2 •Supplier Did Not Meet 2020 Target – Change Service Area Since 2020: If aretail supplier did not meet its 2020 target and its service area changed between2020 and 2025, the supplier must compare its actual 2025 GPCD with the 2020target to report progress toward achieving that target in 2025. These suppliersmust also provide documentation of their SB X7-7 compliance for the service areachanges. CMWD was an urban retail water supplier in 2020, met its 2020 Target in 2020, and has not had any service area changes since 2020. Compliance with the requirements for the 2025 UWMP in relation to SB X7-7 is documented here. 5.2 Water Use and Compliance In 2010, CMWD established a 2020 per capita water use target equal to 80% of its baseline, calculated using a 10-year period from 1999 to 2008. Because recycled water comprised more than 21% of 2008 retail deliveries (2008 recycled water as a percent of total deliveries was 15.9 [CMWD 2011]), the extended baseline was allowed. The baseline was 259 gallons per capita per day (GPCD), resulting in a 2020 target of 207 GPCD. As shown in Table 5-1, CMWD met, and exceeded, its 2020 target in 2020. Because of this, no additional analysis is required for the 2025 UWMP. TABLE 5-1: SB X7-7 2020 TARGET PROGRESS DWR Table 5-1: 2020 Target Progress Was Supplier part of a merger or consolidation since 2020? Regional Alliance Target or Individual Target 2020 Target Actual 2020 GPCD Did Supplier Achieve Targeted Reduction for 2020? No Individual Target 207 134 Yes Notes: NA=Not Applicable DWR and SWRCB have implemented reporting for the AB 1668 / SB 606 legislation, more commonly known as Making Conservation a California Way of Life. Reporting on compliance with this new legislation is not currently required for the 2025 UWMP. However, in the interest of demonstrating progress towards the new objectives, CMWD’s 2025 GPCD has been estimated at 134 GPCD (total potable water less deliveries to agricultural uses, divided by service area population, then divided by days). CMWD is still in compliance with its target. May 12, 2026 Item #10 Page 75 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-1 6. WATER SUPPLY This section discusses CMWD’s sources of water supply, new supply opportunities, exchanges and transfers of water, wastewater and recycled water opportunities, projected water supplies, and climate change impacts to water supply. 6.1 Water Supply Characterization CMWD’s existing water sources include a local supply of recycled water, a local supply of desalinated seawater, and purchased SDCWA water. All of CMWD’s potable demands are currently met with imported purchased water and desalinated seawater, which are delivered through SDCWA infrastructure. CMWD’s future supplies include the existing recycled water supply from the Phase III Recycled Water Project along with continued potable and desalinated seawater purchases from SDCWA. No additional supplies are currently being planned. The Phase III Recycled Water Project was completed in 2025 and expanded CMWD’s existing recycled water system to increase recycled water production, delivery and storage. Construction of new pipeline segments totaling 97 miles, the Carlsbad WRF expansion to 7 mgd capacity, and a new 1.5 million gallon storage reservoir have been completed as of June 2025. Since late 2016, desalinated seawater made available via the Carlsbad Desalination Plant has been blended into the treated water purchased from SDCWA. On April 12, 2016, CMWD entered into a purchase agreement with SDCWA to receive local desalinated water blended with other SDCWA supplies. A detailed summary of CMWD’s projected supplies is provided in Section 6.9. An overview of CMWD’s supplies is provided in Table 6-1. Figure 6-1 shows CMWD’s water supply facilities and infrastructure, as well as groundwater basins. TABLE 6-1: SUMMARY OF HISTORICAL, EXISTING, AND PLANNED WATER SUPPLIES (AFY) Source 2020 2025 2030 2035 2040 2045 2050 SDCWA Purchases 11,375 11,962 12,415 13,674 13,763 13,868 13,987 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 2,500 2,500 Recycled Water 3,765 3,708 3,898 4,218 4,218 4,218 4,218 Total Water Supplies 17,640 18,170 18,813 20,392 20,481 20,586 20,705 Notes: It is assumed CMWD’s contract for 2,500 acre-feet per year of desalinated supply will be renewed when the current contract expires in 2046. May 12, 2026 Item #10 Page 76 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-2 FIGURE 6-1: CMWD WATER SERVICE SYSTEMS May 12, 2026 Item #10 Page 77 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-3 6.2 Purchased or Imported Water CMWD purchases all of its potable water from SDCWA, which in turn purchases State Water Project (SWP) and Colorado River water from MWD, acquires Colorado River supplies directly or from other agencies, and purchases desalinated seawater produced at the Channelside Water Resources LP (formerly known as Poseidon Resources) Carlsbad Desalination Plant. Imported water is conveyed into the area via MWD and SDCWA aqueducts (Figure 3-4). Upon its formation in 1954, CMWD joined SDCWA to acquire the right to purchase and distribute imported water throughout its service area. SDCWA has 22 member agencies, including CMWD, and is the regional wholesaler of imported water in San Diego County. In 2016, CMWD entered an agreement with SDCWA to purchase direct deliveries of desalinated seawater, reducing CMWD’s reliance on SDCWA imports for potable supplies (see Section 6.3 Desalinated Water). CMWD also purchases disinfected tertiary recycled water produced at the Meadowlark Water Reclamation Facility from VWD to help meet CMWD’s recycled water demands. Further discussion is provided in Section 6.4 Wastewater and Recycled Water. 6.2.1 Metropolitan Water District of Southern California (MWD) MWD was created in 1928 following the passage of the Metropolitan Water District Act by the California Legislature to provide supplemental water for cities and communities on the south coastal plain of California. MWD serves as a water wholesaler and provides water to its member agencies from both the Colorado River and the SWP. It has 26 member agencies including SDCWA, and covers an area which includes all, or portions, of Ventura, Los Angeles, Orange, Riverside, San Bernardino, and San Diego Counties. MWD’s water supplies and management programs are discussed in its 2025 Regional Urban Water Management Plan (MWD 2025). 6.2.2 San Diego County Water Authority (SDCWA) SDCWA was organized on June 9, 1944, under the County Water Authority Act for the express purpose of importing Colorado River water into San Diego County. SDCWA annexed to MWD in 1946. As its largest customer, SDCWA is now represented on MWD’s Board of Directors by four directors. SDCWA purchases water from MWD and other sources for resale to its member agencies. As of 2025, SDCWA’s potable supplies include a mix of imported water and local supplies, including desalinated seawater from the Carlsbad Desalination Plant and local surface water collected at 13 reservoirs. May 12, 2026 Item #10 Page 78 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-4 CMWD is one of 22 member agencies of SDCWA. Each member agency is autonomous and represented on SDCWA’s Board of Directors, setting local policies and water pricing structures. The representatives on the Board of Directors are appointed by each member agency and the number of representatives for each agency is based on a ratio of each agency’s assessed valuation compared to the total of all member agencies. CMWD currently has two Board members on the 36-member Board of Directors. Member agency status entitles CMWD to directly purchase water from SDCWA on a wholesale basis. CMWD also looks to SDCWA to ensure, to the best of its ability, that adequate water will be available to satisfy future potable water requirements. SDCWA’s water supplies and management programs are discussed in its 2025 Urban Water Management Plan (SDCWA 2025). CMWD’s current and projected water purchases from SDCWA are provided in Table 4-9, Table 6-9 and Table 6-10. 6.3 Desalinated Water Since 1999, a large-scale seawater desalination facility has been actively explored as a potential local supply for the San Diego region. CMWD was involved in planning for the Carlsbad desalination facility throughout its development. After exploring the feasibility of a variety of purchase agreements and delivery structures, Channelside Water Resources LP (formerly known as Poseidon), SDCWA, and SDCWA’s member agencies came to agreement to move forward with implementation of a desalination facility for the region. In 2015, Poseidon completed construction of the Carlsbad Desalination Plant, located at the Encina Power Plant site adjacent to Agua Hedionda Lagoon, and began deliveries of desalinated seawater at the end of that year. Desalinated water produced at this facility is designated as a local supply, and water from the Carlsbad Desalination Plant is pumped to SDCWA’s Twin Oaks Treatment Plant (refer to Figure 3-4), where it is blended with treated imported water for delivery to SDCWA member agencies, including CMWD. SDCWA currently purchases all the water produced at the desalination facility under its purchase agreement with Channelside Water Resources. In addition to receiving desalinated seawater through SDCWA’s supply mix, CMWD also secured its option to receive water directly from the desalinated water conveyance pipeline coming from the Carlsbad Desalination Plant. On April 12, 2016, CMWD Board of Directors approved an agreement between SDCWA and CMWD for the planning and design of the direct connection to the desalinated pipeline (Carlsbad 5 Flow Control Facility and Pressure Reducing Station), to provide 2,500 AFY of local desalinated seawater to CMWD through a Take or Pay agreement. A direct connection would improve water supply reliability and add infrastructure redundancy by providing a delivery system independent of SDCWA’s larger system. Should supply disruption occur as a result of damage to the SDCWA aqueduct system, CMWD would still be able to receive desalinated seawater if and when May 12, 2026 Item #10 Page 79 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-5 the option to pursue a direct connection to the desalinated water conveyance pipeline is implemented. Although CMWD has determined that the direct connection (Carlsbad 5 Flow Control Facility and Pressure Reducing Station) is not financially feasible at this time, CMWD has the option to continue pursuing the project in the future should conditions change. Through its general purchase of water supplies from SDCWA, CMWD receives a pro rata share of 1,449 AFY desalinated water. CMWD also directly receives an additional 2,500 AFY desalinated water as part of a Take or Pay agreement. This supply is considered a local supply for CMWD. In the event that additional water is produced by the Carlsbad Desalination Plant, beyond SDCWA’s annual demand commitment of 48,000 AFY, CMWD may purchase an additional volume of desalinated water, equal to 5.21% of the additional production. This additional water is not accounted for in current supply projections due to uncertainty surrounding its procurement and cost. While the Carlsbad Desalination Plant has a capacity of 56,000 AFY, CMWD only receives a portion through its agreement with SDCWA (see Table 6-2). TABLE 6-2: SOURCE WATER DESALINATION DWR Table 6-8ds: Source Water Desalination Plant Name or Well ID Plant Capacity Intake Type Source Water Type Influent TDS Brine Discharge Volume of Water Desalinated in AFY 2021 2022 2023 2024 2025 Carlsbad Desalination Plant 56,000 Open-water Sea water .015 ntu Brine Line 2,500 2,500 2,500 2,500 2,500 Total 2,500 2,500 2,500 2,500 2,500 Notes: CMWD purchases ocean desalinated water blended with non-desal water from its wholesaler, SDCWA. NTU is an acronym for Nephelometric Turbidity Unit. 6.4 Wastewater and Recycled Water The City of Carlsbad, LWWD, and VWD provide wastewater collection services within the CMWD service area, and EWA provides wastewater treatment. CMWD owns the Carlsbad WRF that produces recycled water for its customers. CMWD produces, buys, sells, and distributes recycled water to customers both within its service area and to customers located in an adjacent agency service area. CMWD’s supply projections, in terms of total rights or safe yield, are significantly higher than current identified demands (see Table 6-10) because CMWD has the ability to purchase recycled water from VWD and has also expanded its Carlsbad WRF to increase local production of recycled water. CMWD will either identify new non-potable customers or sell the recycled water to neighboring agencies to allow the region to maximize local sources. CMWD anticipates only producing May 12, 2026 Item #10 Page 80 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-6 as much recycled water at Carlsbad WRF to meet demands, but the potential surplus of recycled water allows for flexibility in management of its supplies and provides potential for increasing recycled water use within and adjacent to CMWD’s service area. 6.4.1 Recycled Water Coordination For production and delivery of recycled water sufficient to meet local demands, CMWD’s recycled water system requires ongoing coordination with EWA and VWD. EWA oversees the regional wastewater collection and treatment system. All wastewater collected within CMWD’s service area is conveyed to the EWPCF, which is owned and operated by EWA. EWA supplies secondary effluent to the Carlsbad WRF and Gafner WRF (owned and operated by LWWD) for tertiary treatment and discharges unused secondary effluent to the Pacific Ocean via the Encina Ocean Outfall. VWD also produces tertiary recycled water and sells it to CMWD. 6.4.2 Wastewater Treatment and Collection Facilities EWA provides regional treatment and effluent disposal through an ocean outfall from the EWPCF. EWA is a joint powers authority consisting of six member agencies in northern San Diego County: Cities of Carlsbad, Vista, and Encinitas, VWD, Buena Sanitation District, and LWWD. In total, EWA provides wastewater services to more than 379,000 people and comprises approximately 125 square miles of northern San Diego County (EWA 2025). Wastewater collected by EWA members is conveyed to the EWPCF, where it is treated to secondary, and either discharged to the Pacific Ocean via the Encina Ocean Outfall or conveyed to the Carlsbad WRF or Gafner WRF for additional treatment for beneficial reuse. The City of Carlsbad owns treatment capacity rights at EWPCF for 10.26 mgd. The EWPCF provides full secondary treatment, sludge handling, and disposal through a deep ocean outfall, the Encina Ocean Outfall. The outfall extends along the ocean floor to a point one and a half miles off shore, at a depth of over 150 feet. Treatment levels at EWPCF meet all current State and Federal requirements. Refer to Figure 6-1 for location of the EWPCF and Encina Ocean Outfall. Within CMWD’s water service area, wastewater collection is provided by the City of Carlsbad, LWWD, and VWD. The City of Carlsbad’s sewer system includes 273 miles of pipeline and conveyed an average flow of 5.85 mgd for Fiscal Year 2025, a 0.37% increase over 2024 (EWA 2025). LWWD provides wastewater services to the La Costa portion of CMWD’s service area and operates approximately 200 miles of pipeline serving 60,000 people across Carlsbad and neighboring Encinitas (LWWD 2026). LWWD’s flows to the EWPCF averaged 3.78 mgd in Fiscal Year 2025, unchanged from 2024 (EWA 2025). All sewer flows are conveyed to the EWPCF for treatment. VWD provides wastewater services May 12, 2026 Item #10 Page 81 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-7 to 80 homes in the southeast corner of CMWD’s service area. VWD flows to EWPCF averaged 4.55 mgd in Fiscal Year 2025, a 0.57% increase over 2024 (EWA 2025). Wastewater is a supply for recycled water. Table 6-3 identifies the wastewater collected within CMWD’s service area, while Table 6-4 identifies the volume of wastewater that is either recycled or discharged within CMWD’s service area. Recycled water is presently supplied to CMWD customers from two sources consisting of a maximum allocation of 7.0 mgd from Carlsbad WRF and 3.0 mgd from Meadowlark WRF (owned by VWD). Meadowlark WRF can produce up to 5.0 mgd tertiary recycled water, or 5,600 AFY. CMWD is in the process of negotiating a new recycled water purchase agreement with VWD, under which purchase volumes are anticipated to change. Encina Water Pollution Control Facility The EWPCF is owned and operated by EWA. It currently treats an average flow of 20 mgd wastewater, but has the capacity to treat up to 40.5 mgd. The EWPCF produces over 5.0 mgd of secondary treated recycled water. Treated secondary recycled water is used in the plant and reduces costs for potable water required to operate the facility. Additional effluent flows from the facility are diverted from the ocean outfall and transferred to Carlsbad WRF for tertiary treatment. Secondary effluent that cannot be reused, either directly or through additional treatment to meet tertiary recycled water demands, is discharged through the Encina Ocean Outfall. In fiscal year 2024-2025, the EWPCF treated a total of 7.97 billion gallons of water (24,459 AF) and recycled 2.9 billion gallons of water (8,900 AF) for onsite use and regional irrigation (EWA 2025). Carlsbad Water Recycling Facility The Carlsbad WRF, owned by CMWD but operated by EWA staff, can produce 7.0 mgd (7,839 AFY). On average over the past five years, the Carlsbad WRF produced 3,708 AFY of recycled water (CMWD 2025). This facility receives secondary treated water from the EWPCF for tertiary treatment. Meadowlark Water Reclamation Facility Meadowlark WRF is owned and operated by VWD and has a total capacity of 5.0 mgd. Currently, CMWD’s rights to disinfected tertiary water from the Meadowlark WRF range from 2.0 mgd during the months of December through March and 3.0 mgd during the months of April through November and equates to 2,989 AFY. The remaining amount of recycled water produced by the Meadowlark WRF is sold to OMWD under an agreement up to a maximum of 1.0 mgd or 1,120 AFY. CMWD generally purchases approximately 1,900 AFY recycled water from Meadowlark WRF, although the Meadowlark WRF has been May 12, 2026 Item #10 Page 82 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-8 out of service since December 2024 for plant upgrades which will increase the production capacity up to 6,200 AFY recycled water. CMWD is currently negotiating an agreement that would allow it to receive 2,700 AFY of recycled water from Meadowlark WRF in future years. Gafner Water Reclamation Facility The Gafner WRF is owned and operated by LWWD and has a total capacity of 1.0 mgd. Although CMWD does not purchase recycled water from the Gafner WRF, the plant is located within CMWD’s water service boundary. LWWD sells and delivers directly to the southern portion of the Omni La Costa Resort & Spa golf course, which is within the southern portion of CMWD’s service area. May 12, 2026 Item #10 Page 83 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 6 : W a t e r S u p p l y 6- 9 TA B L E 6- 3 : W AS T E W A T E R C O L L E C T E D W I T H I N C M W D W A T E R S E R V I C E A R E A I N 2 0 2 5 DW R T a b l e 6 -2 R e t a i l : W a s t e w a t e r C o l l e c t e d W i t h i n S e r v i c e A r e a i n 2 0 2 5 Wa t e r C o d e S e c t i o n 1 0 6 3 3 ( a ) 10 0 % Pe r c e n t a g e o f 2 0 2 5 s e r v i c e a r e a c o v e r e d b y w a s t e w a t e r c o l l e c t i o n s y s t e m 10 0 % Pe r c e n t a g e o f 2 0 2 5 s e r v i c e a r e a p o p u l a t i o n c o v e r e d b y w a s t e w a t e r c o l l e c t i o n s y s t e m Wa s t e w a t e r C o l l e c t i o n Re c i p i e n t o f C o l l e c t e d W a s t e w a t e r Na m e o f W a s t e w a t e r C o l l e c t i o n Ag e n c y Wa s t e w a t e r Vo l u m e Me t e r e d o r Es t i m a t e d ? Vo l u m e o f Wa s t e w a t e r Co l l e c t e d i n 20 2 5 (A F Y ) Na m e o f W a s t e w a t e r Tr e a t m e n t A g e n c y R e c e i v i n g Co l l e c t e d W a s t e w a t e r Tr e a t m e n t P l a n t N a m e Is WW T P Lo c a t e d Wi t h i n UW M P Ar e a ? Is W W T P Op e r a t i o n Co n t r a c t e d to a T h i r d Pa r t y ? Ci t y o f C a r l s b a d Me t e r e d 6, 9 1 8 En c i n a W a s t e w a t e r A u t h o r i t y En c i n a P o l l u t i o n C o n t r o l F a c i l i t y Ye s Ye s Le u c a d i a W a s t e w a t e r D i s t r i c t (L W W D ) Es t i m a t e d 96 8 En c i n a W a s t e w a t e r A u t h o r i t y En c i n a P o l l u t i o n C o n t r o l F a c i l i t y Ye s Ye s Va l l e c i t o s W a t e r D i s t r i c t (V W D ) Es t i m a t e d 20 En c i n a W a s t e w a t e r A u t h o r i t y En c i n a P o l l u t i o n C o n t r o l F a c i l i t y Ye s Ye s To t a l W a s t e w a t e r C o l l e c t e d f r o m S e r v i c e A r e a i n 20 2 5: 7, 9 0 6 Not e s : Th e E n c i n a P o l l u t i o n C o n t r o l F a c i l i t y i s o w n e d a n d o p e r a t e d b y t h e E n c i n a W a s t e w a t e r A u t h o r i t y , a j o i n t p o w e r s a u t h o r i t y t h a t is o w n e d b y s i x a g e n c i e s , in c l u d i n g C i t y o f C a r l s b a d , LW W D an d VW D . Wa s t e w a t e r f l o w s a r e r e p o r t e d f o r Ca l e n d a r Ye a r 2 0 2 5, e n d i n g De c e m b e r 3 1 , 2 0 2 5 . L W W D se r v e s a p o r t i o n o f C M W D ' s se r v i c e a r e a . T h e 96 8 AF fo r Le u c a d i a wa s o b t a i n e d f r o m E W A r e p o r t s . VW D co l l e c t s w a s t e w a t e r f o r 8 0 h o m e s i n t h e C M W D s e r v i c e a r e a . T h e a g r e e m e n t e s t i m a t e s VW D co l l e c t s 2 2 0 g a l l o n s p e r d a y o f w a s t e w a t e r f r o m e a c h h o m e . May 12, 2026 Item #10 Page 84 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 6 : W a t e r S u p p l y 6- 10 TA B L E 6- 4 : W AS T E W A T E R T R E A T M E N T A N D D I S C H A R G E W I T H I N C M W D W A T E R S E R V I C E A R E A I N 2 0 2 5 DW R T a b l e 6 -3 R e t a i l : W a s t e w a t e r T r e a t m e n t a n d O u t c o m e s W i t h i n U W M P S e r v i c e A r e a i n 2 0 2 5 Wa t e r C o d e S e c t i o n 1 0 6 3 3 ( a ) Wa s t e w a t e r Tr e a t m e n t Pl a n t N a m e Pl a n t T r e a t s Wa s t e w a t e r Ge n e r a t e d Ou t s i d e t h e UW M P Se r v i c e Ar e a ? 20 2 5 Vo l u m e o f Wa s t e w a t e r Re c e i v e d fr o m UW M P Se r v i c e Ar e a To t a l 20 2 5 Vo l u m e of Wa s t e - wa t e r Tr e a t e d 20 2 5 O u t c o m e s o f T r e a t e d W a s t e w a t e r (v o l u m e i n A F ) Wa t e r Re c y c l e d Wi t h i n UW M P Se r v i c e Ar e a Wa t e r Re c y c l e d Ou t s i d e o f UW M P Se r v i c e Ar e a Ef f l u e n t Di s c h a r g e t h a t is n o t a Pe r m i t t e d Re c y c l e d W a t e r Us e Re q u i r e d Di s c h a r g e fo r In s t r e a m Fl o w De l i v e r e d t o A n o t h e r E n t i t y f o r Ad d i t i o n a l T r e a t m e n t Vo l u m e (T r e a t m e n t le v e l ) Vo l u m e (T r e a t m e n t le v e l ) Vo l u m e (T r e a t m e n t le v e l ) Vo l u m e (T r e a t m e n t le v e l ) Vo l u m e (T r e a t m e n t le v e l ) Na m e o f E n t i t y En c i n a W a t e r Po l l u t i o n Co n t r o l Fa c i l i t y Ye s 7, 9 0 6 28 ,04 7 0 6, 418 (T e r t i a r y ) 21 ,62 9 (S e c o n d a r y , Un d i s i n f e c t e d ) 0 5, 7 5 1 (T e r t i a r y ) Ca r l s b a d W R F Ga f n e r W R F Ca r l s b a d W R F No 0 5, 35 6 3, 68 3 (T e r t i a r y ) 25 . 3 (T e r t i a r y ) 0 0 0 Ga f n e r W R F Ye s 0 41 3 25 1 (T e r t i a r y ) 0 16 2 0 0 Me a d o w l a r k WR F Ye s 0 0 0 0 ( T e r t i a r y ) 0 ( S e c o n d a r y , Un d i s i n f e c t e d ) 0 0 To t a l 7, 9 0 6 33 , 8 1 6 3, 9 34 6, 4 4 3 21 , 79 1 0 5, 7 5 1 No t e s : Me a d o w l a r k W R F h a s b e e n n o n -op e r a t i o n a l s i n c e D e c e m b e r 2 0 2 4 , b u t i s e x p e c t e d t o r e s u m e o p e r a t i o n s s u m m e r 2 0 2 6 . May 12, 2026 Item #10 Page 85 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-11 6.4.3 Recycled Water Master Plan CMWD completed an update to its Recycled Water Master Plan in July 2019. The Recycled Water Master Plan evaluates the existing recycled water system, demands, supplies, regulations, and future system expansions. Beginning in 1990, CMWD began implementation of recycled water within its service area. By 1995, CMWD served over 1,000 AFY of recycled water through the implementation of the recycled water system facilities of Phase I. CMWD began implementation of Phase II in 2000, which included the construction of the Carlsbad WRF, improvements to Mahr reservoir, three new booster pump stations, and 24 miles of additional recycled water pipelines. CMWD implemented its Phase III Recycled Water Project between 2014 and 2025, which expanded the Carlsbad WRF capacity, installed additional recycled water pipelines, connected customers along existing recycled water pipelines to recycled water service, and added an additional recycled water storage tank. 6.4.4 Recycled Water Use CMWD began delivering recycled water in 1993. Since 1993, CMWD has constructed treatment facilities, pumping stations, reservoirs, pipelines, and has adopted a mandatory use ordinance requiring developers to install recycled water distribution pipelines within their projects. Water recycling is provided by CMWD from its Carlsbad WRF to developed areas within CMWD’s service area, with the exception of the south portion of the Omni La Costa Resort & Spa golf course, which is served by LWWD. As described above and identified in Table 6-3, recycled water is presently supplied within CMWD’s service area from three sources: Carlsbad WRF, Meadowlark WRF, and Gafner WRF. The maximum flow rate available to CMWD from each treatment facility varies. CMWD’s current recycled water system has approximately 97 miles of recycled water distribution pipelines, as shown Figure 6-1. The largest and/or most recognized customers currently served recycled water by the Carlsbad WRF include the following. Uses are for landscape irrigation, with the exception of NRG: • Omni La Costa Resort & Spa North Golf Course • Four Seasons Resort at Aviara • Kemper Sports Management (Carlsbad Municipal Golf Course) • Legoland of California • Grand Pacific Palisades Hotel • Karl Strauss Brewery • Caltrans (Interstate 5 landscaping) • The NRG Power Plant (for industrial purposes [e.g., cooling towers] and landscape irrigation) May 12, 2026 Item #10 Page 86 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-12 In addition, recycled water is supplied to parks, median strips, shopping areas, the common areas of numerous homeowners’ associations, and industrial parks. As of December 2025, this distribution system currently supplies more than 1,015 recycled connections (CMWD 2026). With the completion of the Phase III Recycled Water Project in 2025 (see below), CMWD projects a total of 4,218 AFY recycled water demands beginning in 2035 and into the future. This includes only verifiable recycled water supplies, consistent with SDCWA’s demand projections, but does not include planned or conceptual recycled water projects. There is potential for future projects to expand recycled water demands and deliveries beyond this volume. Recycled water use (current and projected) is presented, by use category, in Table 6-5. May 12, 2026 Item #10 Page 87 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 6 : W a t e r S u p p l y 6- 13 TA BL E 6- 5 : C UR R E N T A N D P R O J E C T E D R E C Y C L E D W A T E R D I R E C T B E N E F I C I A L U S E S W I T H I N S E R V I C E A R E A 20 2 5 -20 5 0 Su b m i t t a l T a b l e 6 -4 R e t a i l : R e c y c l e d W a t e r D i r e c t B e n e f i c i a l U s e s W i t h i n S e r v i c e A r e a Wa t e r C o d e S e c t i o n 1 0 6 3 3 ( c ) ( e ) Na m e ( s ) o f F a c i l i t y / i e s P r o d u c i n g ( T r e a t i n g ) t h e R e c y c l e d W a t e r ( O P T I O N A L ) : Ca r l s b a d W R F , M e a d o w l a r k W R P , G a f n e r W R F Na m e o f S u p p l i e r O p e r a t i n g t h e R e c y c l e d W a t e r D i s t r i b u t i o n S y s t e m (O P T I O N A L ) : Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t Su p p l e m e n t a l W a t e r A d d e d i n 2 0 2 5 ( v o l u m e ) I n c l u d e u n i t s ( O P T I O N A L ) : 0 A F Y So u r c e o f 2 0 2 5 S u p p l e m e n t a l W a t e r ( O P T I O N A L ) : N/ A Us e T y p e Wa t e r T y p e (a f t e r tr e a t m e n t i f tr e a t e d ) (O P T I O N A L ) Ad d i t i o n a l In f o r m a t i o n (a s n e e d e d ) 20 2 5 20 3 0 20 3 5 20 4 0 20 4 5 20 5 0 (o p t ) Po t e n t i a l R e c y c l e d Wa t e r U s e (A F ) (A F ) (A F ) (A F ) (A F ) (A F ) Vo l u m e Na r r a t i v e pa g e nu m b e r (O P T I O N A L ) La n d s c a p e i r r i g a t i o n (e x c l u d e s g o l f co u r s e s ) No n - po t a b l e Co m m e r c i a l pr o p e r t y ir r i g a t i o n , co m m u n i t y fa c i l i t i e s , hi g h w a y s , H O A s , re s o r t p r o p e r t y ir r i g a t i o n , p a r k s , an d s c h o o l s 28 7 2 30 6 2 33 8 2 33 8 2 33 8 2 33 8 2 0 Go l f c o u r s e ir r i g a t i o n Go l f c o u r s e ir r i g a t i o n 80 8 80 8 80 8 80 8 80 8 80 8 0 Co m m e r c i a l U s e Co o l i n g 0 0 0 0 0 0 0 In d u s t r i a l U s e NR G P o w e r P l a n t 28 28 28 28 28 28 0 To t a l 3, 7 0 8 3, 8 9 8 4, 2 1 8 4, 2 1 8 4, 2 1 8 4, 2 1 8 0 May 12, 2026 Item #10 Page 88 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-14 6.4.5 Potential and Projected Recycled Water Use Actual recycled water use in 2025 within CMWD’s service area was 3,708 AFY. The 2020 UWMP projected recycled water use in 2025 was 4,218 AFY. The difference is accounted for by delays in construction and implementation of the Phase III Recycled Water Project, variations in rainfall and temperatures, and general implementation of drought tolerant landscaping which has lower irrigation demands compared to turf. Table 6-6 compares the projected recycled water use for 2025 (as projected in the 2020 UWMP) with actual metered recycled water use in 2025. While recycled water use is anticipated to grow, the exact number of future recycled water connections is unknown. As such, projections in this 2025 UWMP represent the best estimate based on current information, with the understanding that actual recycled water use may be different from the forecast. TABLE 6-6: 2020 RECYCLED WATER USE PROJECTION COMPARED TO 2025 ACTUAL (AFY) DWR Table 6-5 Retail: 2020 UWMP Recycled Water Use Projection Compared to 2025 Actual Use Type 2020 Projection for 2025 2025 Actual Use Agricultural irrigation Landscape irrigation (excludes golf courses) 3,493 2,872 Golf course irrigation 725 808 Commercial Use 0 0 Industrial Use 0 28 Geothermal and other energy production Seawater Intrusion Barrier Recreational impoundment Wetlands or wildlife habitat Groundwater recharge (IPR) Reservoir water augmentation Direct potable reuse Other 0 Total 4,218 3,708 6.4.6 Methods to Encourage Recycled Water Use CMWD has actively pursued recycled water use in its service area and has implemented multiple mechanisms to encourage recycled water use. Some of these mechanisms include affordable rates, policies and ordinances, development of clear use guidelines, May 12, 2026 Item #10 Page 89 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-15 participation in regional training and certifications, and active participation in regional and local recycled water projects that include outreach and expanded distribution systems. Now that the Phase III Recycled Water Project is complete, CMWD does not expect substantial increases in recycled water use, with the exception of connecting some additional customers along recently constructed pipelines. CMWD considers its recycled water system to generally be at build-out unless substantial land use changes occur or regulations change that would result in an increased demand for recycled water, requiring significant capital investment in distribution system expansion, therefore, DWR Table 6-6 is not applicable. 6.5 Local Groundwater and Local Surface Water As previously detailed in Section 3.4, CMWD does not currently use any local groundwater and surface water supplies, although in the past both types of water sources were used. Prior to 1957, CMWD’s predecessor, the Carlsbad Mutual Water Company, and the Terramar Water Company provided the City of Carlsbad with water from Lake Calavera and groundwater from the Mission Basin. The Terramar Water Company also provided local groundwater to a portion of the City of Carlsbad through its Cannon Well Field in the Agua Hedionda area. In August 1957, the water rights and other assets of the Carlsbad Mutual Water Company and Terramar Water Company were purchased by the City of Carlsbad. These local groundwater and surface water rights were later transferred to CMWD in 1983. These rights included long-standing groundwater allocations from the Mission Basin, totaling 3,650 AFY through a combination of historic, prescriptive, and pre-1914 appropriative rights. The Carlsbad Mutual Water Company held a permit with the State Division of Water Rights for another 1,000 AFY from the Mission Basin, originally for irrigation and later amended for recreational and fire-protection purposes. Additionally, there were surface water rights for 150 AFY which were held from Calavera Creek. The Terramar Water Company had 450 AFY of groundwater rights from the Agua Hedionda Creek Basin. Finally, CMWD obtained a permit for surface water in the amount of 25 AF from Agua Hedionda Creek as a result of constructing Maerkle Dam in 1962. Table 6-7 identifies the groundwater basins in the vicinity of CMWD according to DWR Bulletin 118, which are also shown in Figure 3-4 and Figure 6-1. Of these basins, only the Batiquitos Lagoon Valley Groundwater Basin is in CMWD’s service area, while the San Luis Rey Valley Groundwater Basin is located north of CMWD, and the San Marcos Valley Groundwater Basin is located east of CMWD. Under the California Groundwater Elevation Monitoring (CASGEM), only the Upper San Luis Rey Valley has been designated as Medium Priority Basin and therefore subject to mandatory monitoring, whereas the Lower May 12, 2026 Item #10 Page 90 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-16 San Luis Rey Valley and San Marcos Valley basins are designed Very Low Priority and not required to be monitored. Monitoring of the Upper San Luis Rey Valley Basin is conducted jointly by the City of Oceanside, the Pauma Valley Groundwater Sustainability Agency, and the County of San Diego. None of the basins listed in Table 6-7 are adjudicated, nor has DWR identified any of these groundwater basins as being in overdraft. Within the San Luis Rey Valley Groundwater Basin are several locally-recognized subbasins, which are commonly considered separate hydrological units: Mission, Bonsall, Moosa, Pala, and Pauma Basins (SDCWA 2010). Other groundwater resources include subsurface flows from local hydrologic areas within the Carlsbad Watershed, including Buena Vista Creek Basin, Agua Hedionda Creek Basin, Encinas Creek Basin, and the Batiquitos Hydrologic Subarea. Overall, these areas do not have the geological capacity or scale of the Mission Subbasin in the Lower San Luis Rey Valley Groundwater Basin and, even collectively, could provide only a small portion of CMWD’s overall water needs. TABLE 6-7: GROUNDWATER BASINS IN THE VICINITY OF CMWD Basin Name DWR Basin Number Basin Priority1 Located Within CMWD Service Area Supply Currently Utilized by CMWD Groundwater Management Plan Status Lower San Luis Rey Valley (including the Mission Subbasin) 9-7-2 Very Low No 0 AFY Groundwater Sustainability Plan under development by Pauma Valley Groundwater Sustainability Agency Batiquitos Lagoon Valley 9-22 Very Low Yes 0 AFY None2 San Marcos Area 9-32 Very Low No 0 AFY None2 1 California Sustainable Groundwater Elevation Monitoring (CASGEM) designated priority 2 Basin is not currently used as supply and no groundwater management plan has been developed or adopted by CMWD. Groundwater management plans or groundwater sustainability plans would be adopted prior to use of these groundwater basins for supply, as required. May 12, 2026 Item #10 Page 91 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-17 Mission Subbasin Of the groundwater basins in the vicinity of CMWD, the Mission Subbasin of the Lower San Luis Rey Valley Groundwater Basin has the most potential as a viable water resource. This basin has a large drainage area of 565 square miles and consists of alluvium and river channel deposits averaging 150 feet in depth. The quality is mildly brackish with TDS concentrations ranging from 1,000 to 1,500 milligrams per liter (mg/L). For CMWD’s use, the water would need to be treated by a low-pressure membrane, reverse osmosis process to achieve treated water quality in the range of 500 mg/L. The City of Oceanside is currently doing this at its Mission Basin Groundwater Purification Facility and is also implementing the Pure Water Oceanside project which recharges the basin with advanced treated water. In 2005, CMWD completed a study on the cost effectiveness of utilizing the groundwater from the Mission Subbasin. This study showed that while the treatment and delivery of groundwater is feasible, it was not cost effective for CMWD at the time of the study. As a result, CMWD’s Board approved the staff recommendation to discontinue efforts to utilize this groundwater source as an alternate local supply at that time. However, since 2005, improvements in technology may have resulted in lower costs for removing TDS, and these costs may continue to decrease over time. In addition, the cost of imported water has increased significantly since 2005 and this trend is projected by both MWD and SDCWA to continue over time. With the increasing cost and decreasing reliability of imported water, the cost effectiveness of using local groundwater may become attractive in the future. A groundwater supply from the Mission Subbasin would require the construction of several wells, a groundwater treatment facility, and a conveyance system. Wheeling the treated groundwater through the Oceanside distribution system may be an option. In addition, the State of California does not currently recognize CMWD’s water rights in the Mission Subbasin, and formal water rights would need to be reestablished before any groundwater development could proceed. Accordingly, CMWD will continue to monitor the benefits and costs of utilization of groundwater in the Mission Subbasin, which may become cost effective, for CMWD or third parties, as technology continues to improve and imported water costs continue to increase. A partnership with City of Oceanside for treatment of brackish groundwater or wheeling the treated groundwater through its distribution system may be an option. The Mission Subbasin project is not being considered at this time but could be explored again in the future as CMWD continues to coordinate with City of Oceanside. May 12, 2026 Item #10 Page 92 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-18 Cannon Well Field The Cannon Well Field, located within the Agua Hedionda Creek Basin subarea of the Carlsbad Watershed, was historically used as a source of local water. Pumping ceased after 1962, but in the years leading up to then, production ranged from 16 AFY to 238 AFY. This well field could be considered as having a potential available yield of 450 AFY. Historically, additional small private wells for individual residences were also located within this subarea, along with private wells in the Buena Vista Creek Basin (CMWD 2019). A 1991 study titled Report on the Feasibility for Development of the Cannon Well Field Carlsbad, California was completed for the Agua Hedionda subunit where the Cannon Well Field is located. This study indicated that by a 1950 agreement between then-landowner Ellen Hall and J.D. Cannon, the Terramar Water Company was granted the right to drill for and remove water from the land. In 1964, this original agreement was merged with an agreement with the City of Carlsbad and the then-landowner to have the sole right and exclusive right to drill wells on the property and take and remove all water developed on the property and deliver it to such places as the City, in its sole discretion, may determine. The City (CMWD) shall be entitled to produce from the property an additional 16.5 AFY; however, there are no recorded groundwater rights. The safe yield was estimated in the 1991 study at 400 AFY. CMWD could begin the process of developing the groundwater. The Rancho Carlsbad Mobile Home Park has one operating well in the vicinity, estimated at 100 AFY, which it uses to supply water for irrigation of their landscaping and through a separate agreement to supply water to the adjacent Rancho Carlsbad Golf Course. Ultimately, if there is excessive pumping, there may be adverse effects, such as the elimination of surface flow in Agua Hedionda Creek, reduction in the wetlands area downstream of the El Camino Real Bridge, and increased salinity in the transition zone of fresh water to salt water in the Agua Hedionda Lagoon. These problems can be addressed if the Cannon Well Field is developed by CMWD through a program of scheduled observations and monitoring. CMWD must clarify and/or re-establish its groundwater rights before providing groundwater to customers. Groundwater could potentially be recovered from the Mission Basin and/or Agua Hedionda Lagoon, although such groundwater would require desalination. CMWD may still explore groundwater as a local water supply concept; as such, groundwater is not included in CMWD’s supply projections. CMWD does not currently pump groundwater; therefore, DWR Table 6-1 is not currently applicable. 6.6 Supply from Storage CMWD owns and operates Maerkle Reservoir, a 17-acre reservoir that was built in 1962 and is in eastern Carlsbad, near the borders of the Cities of Oceanside and Vista. Maerkle May 12, 2026 Item #10 Page 93 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-19 Reservoir can store 600 acre-feet of purchased water from the SDCWA for operational use. Emergency supplies are discussed in Chapters 7 and 8. 6.7 Stormwater CMWD does not currently utilize stormwater as a water supply source. However, the City of Carlsbad actively promotes rain barrels and rain gardens through its Environmental Sustainability Department. Homeowners are responsible for the installation of greywater and rainwater collection systems. CMWD will continue to monitor the development of funding opportunities and best practices by which to pursue stormwater reuse projects in the future. 6.8 Exchanges and Transfers CMWD relies on potable and desalinated water purchased from SDCWA for potable water supplies, and does not participate individually in any potable water transfer or exchange programs, except as needed during SDCWA shutdowns or emergencies. CMWD may provide recycled water via transfers or exchanges to other agencies in the future as part of the NSDWRC, a nine-agency regional recycled water system, described in further detail in Section 6.9 Projected Water Projects, below. In addition, CMWD has informal agreements with neighboring agencies for emergency purposes only that are not considered in CMWD’s normal supplies. These interties would only be needed in rare emergency events or planned maintenance. Emergency interties are discussed in Chapters 7 and 8. 6.9 Projected Water Projects The Water Code requires urban water suppliers to describe all water supply projects and programs that the supplier may implement to meet projected water demand. Recycled Water CMWD has completed the Phase III Recycled Water Project, which involved expansion of the capacity of the Carlsbad WRF to 7.0 mgd, construction and retrofit of pipelines to deliver recycled water and completion of a 1.5 million gallon recycle water storage tank. CMWD continues to connect more recycled water customers in new developments or convert existing potable demands to recycled water as opportunities arise and infrastructure supports. CMWD is one of nine member agencies of the NSDWRC, which is cooperatively implementing a regional recycled water system to maximize recycled water use and implement potable reuse in northern San Diego County. CMWD’s portion of the NSDWRC May 12, 2026 Item #10 Page 94 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-20 Regional Project is the Phase III Recycled Water Project. Through the NSDWRC, CMWD may provide recycled water to other members, and may receive additional recycled water from other members, as necessary. North County One Water Building on over a decade of collaborative efforts in the region by the NSDWRC, EWA and SEJPA have been working with multiple local water agencies to develop the North County One Water Program. It is currently in the feasibility planning phase. The wastewater flows and facilities from two coastal treatment facilities in North San Diego County, the EWPCF and the San Elijo Water Reclamation Facility (SEWRF), represent a unique opportunity for large-scale production of purified water. The EWPCF in the City of Carlsbad could accommodate an advanced water purification facility. The EWPCF has key assets available for production of purified water such as an ocean outfall, available land for advanced treatment, treated secondary effluent and technically capable staff. The SEWRF in the Cardiff area within the City of Encinitas, California could also accommodate an advanced water purification facility. The SEWRF also has key assets available for production of purified water such as an ocean outfall, available land for advanced treatment, treated secondary effluent and technically capable staff. The program was estimated to supply an estimated 18,000 AFY to 35,000 AFY. Although cost estimates for infrastructure and water rates are considered prohibitive now, the program could be developed in the future if conditions change. Because the North County One Water Program is still in the planning stages, it is not quantified as a future water supply in Table 6-8. Groundwater Potential groundwater supplies are still considered uncertain, and are not quantified in Table 6-8, which presents reasonably available volume of future water supplies. Despite this uncertainty, CMWD will reassess the benefits and costs of developing its groundwater rights in the future, which could help to offset CMWD’s demands on SDCWA for potable water. This addition of groundwater to CMWD’s supply portfolio could strengthen its supply reliability and help reduce CMWD’s reliance on imported supplies. May 12, 2026 Item #10 Page 95 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supplies 6-21 Desalinated Water As noted previously, CMWD’s Board approved an agreement with SDCWA to construct a direct connection to the desalinated water conveyance pipeline. Development of this supply would have involved implementation of the Carlsbad 5 Flow Control Facility and Pressure Reducing Station project. If constructed, CMWD would own and operate the Pressure Reducing Station component, while the flow control facility would be owned and operated by the SDCWA. Although CMWD will continue to receive desalinated water through SDCWA’s supply mix of other potable water sources in accordance with the Take or Pay agreement, CMWD is not pursuing the implementation of the Carlsbad 5 Flow Control Facility and Pressure Reducing Station project at this time due to constraints associated with a suitable site for the facilities, land availability, and the high cost of desalinated water. Therefore, the project to construct a direct connection to the desalinated water conveyance pipeline is not quantified in Table 6-8. May 12, 2026 Item #10 Page 96 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 6 : W a t e r S u p p l y 6- 22 TA B L E 6- 8 : E XP E C T E D F U T U R E W A T E R S U P P L Y P R O J E C T S O R P R O G R A M S DW R T a b l e 6 -7 R e t a i l : E x p e c t e d F u t u r e W a t e r S u p p l y P r o j e c t s o r P r o g r a m s Wa t e r C o d e S e c t i o n 1 0 6 3 1 ( f ) No e x p e c t e d f u t u r e w a t e r s u p p l y p r o j e c t s o r p r o g r a m s t h a t p r o v i d e a q u a n t i f i a b l e i n c r e a s e t o t h e a g e n c y ’ s w a t e r s u p p l y . S u p p l ie r w i l l n o t c o m p l e t e t h e ta b l e b e l o w . So m e o r a l l o f t h e s u p p l i e r ’ s f u t u r e w a t e r s u p p l y p r o j e c t s o r p r o g r a m s a r e n o t c o m p a t i b l e w i t h t h i s t a b l e a n d a r e d e s c r i b e d i n a n a r r a t i v e f o r m a t . N/ A Pr o v i d e p a g e l o c a t i o n o f n a r r a t i v e i n t h e U W M P Na m e o f F u t u r e Pr o j e c t s o r Pr o g r a m s Jo i n t P r o j e c t w i t h o t h e r a g e n c i e s ? De s c r i p t i o n Pl a n n e d Im p l e m e n t a t i o n Ye a r Pl a n n e d f o r Us e i n Y e a r Ty p e Ex p e c t e d I n c r e a s e i n Wa t e r S u p p l y t o Ag e n c y ( A F Y ) Y/ N Ag e n c y N a m e Gr o u n d w a t e r S u p p l y No De v e l o p m e n t o f gr o u n d w a t e r s u p p l i e s -- Av e r a g e Y e a r Un k n o w n a t t h i s ti m e NS D W R C R e g i o n a l Pr o j e c t Ye s Le u c a d i a W a s t e w a t e r D i s t r i c t , Va l l e c i t o s W a t e r D i s t r i c t , C i t y o f Oc e a n s i d e , C i t y o f E s c o n d i d o , Ol i v e n h a i n M u n i c i p a l W a t e r Di s t r i c t , R i n c o n d e l D i a b l o Mu n i c i p a l W a t e r D i s t r i c t , S a n E l i j o Jo i n t P o w e r s A u t h o r i t y , S a n t a F e Ir r i g a t i o n D i s t r i c t , a n d V i s t a Ir r i g a ti o n D i s t r i c t Re g i o n a l r e c y c l e d wa t e r p r o j e c t -- Av e r a g e Y e a r Su p p o r t s im p l e m e n t a t i o n o f Ph a s e I I I r e c y c l e d wa t e r p r o j e c t May 12, 2026 Item #10 Page 97 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-23 6.9.1 Summary of Existing and Planned Sources of Water CMWD’s supplies include SDCWA water (treated SWP and Colorado River, SDCWA surface water, along with desalinated seawater, purchased as a blend from SDCWA), recycled water, and could include groundwater in the future. Current water supplies for CMWD during 2025 are presented in Table 6-9. Projected supplies for CMWD are presented in Table 6-10 and include water supply projects that are underway or in development, along with projected population growth and supply availability from SDCWA. TABLE 6-9: WATER SUPPLIES – ACTUAL Submittal Table 6-8 Retail: Water Supplies — 2025 Actual Water Code Section 10631 (b) Water Supply Additional Description (as needed) 2025 May use each category multiple times. These are the only water supply categories that will be recognized by the WUE data online submittal tool Water Type (after treatment if treated) (OPTIONAL) Actual Volume Total Entitlement (OPTIONAL) See "DWR Notes" below (AF) (AF) Purchased or Imported Water Purchased from SDCWA Drinking Water 11,962 11,962 Purchased Local Water (Desal) Purchased from SDCWA Drinking Water 2,500 2,500 Recycled Water Carlsbad WRF Recycled Water 3,708 7,839 Recycled Water Meadowlark WRF Recycled Water 0 2,700 Subtotal Potable 14,462 14,462 Subtotal Non-Potable 3,708 10,539 Total 18,170 25,001 DWR NOTES: Total Entitlement: e.g., Water Right, Groundwater Allocation, Contracted Amount. May 12, 2026 Item #10 Page 98 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 6 : W a t e r S u p p l y 6- 24 TA B L E 6- 10 : W AT E R S U P P L I E S – PR O J E C T E D DW R T a b l e 6 -9 R e t a i l : W a t e r S u p p l i e s — Pr o j e c t e d ( Wa t e r C o d e S e c t i o n 1 0 6 3 1 ( b ) ) Wa t e r Su p p l y Ad d i t i o n a l De t a i l o n Wa t e r S u p p l y Pr o j e c t e d W a t e r S u p p l y ( R e p o r t T o t h e E x t e n t P r a c t i c a b l e ) 20 3 0 20 3 5 20 4 0 20 4 5 20 5 0 Re a s o n a b l y Av a i l a b l e Vo l u m e To t a l Ri g h t o r Sa f e Y i e l d (o p t i o n a l ) Re a s o n a b l y Av a i l a b l e Vo l u m e To t a l Ri g h t o r Sa f e Y i e l d (o p t i o n a l ) Re a s o n a b l y Av a i l a b l e Vo l u m e To t a l Ri g h t o r Sa f e Y i e l d (o p t i o n a l ) Re a s o n a b l y Av a i l a b l e Vo l u m e To t a l R i g h t or S a f e Yi e l d (o p t i o n a l ) Re a s o n a b l y Av a i l a b l e Vo l u m e To t a l Ri g h t o r Sa f e Yi e l d (o p t i o n a l ) Pu r c h a s e d or Im p o r t e d Wa t e r Pu r c h a s e d fr o m S D C W A 12, 4 1 5 12, 4 1 5 13, 6 7 4 13, 6 7 4 13, 7 6 3 13, 7 6 3 13, 8 6 8 13, 8 6 8 13, 9 8 7 13, 9 8 7 Re c y c l e d Wa t e r Ca r l s b a d W R F 1, 1 9 8 7, 8 3 9 1, 5 1 8 7, 8 3 9 1, 5 1 8 7, 8 3 9 1, 5 1 8 7, 8 3 9 1, 5 1 8 7, 8 3 9 Re c y c l e d Wa t e r Me a d o w l a r k WR F 2, 7 0 0 2, 7 0 0 2, 7 0 0 2, 7 0 0 2, 7 0 0 2, 7 0 0 2, 7 0 0 2, 7 0 0 2, 7 0 0 2, 7 0 0 De s a l i n a t e d Wa t e r Ca r l s b a d De s a l i n a t i o n Pl a n t (p u r c h a s e d un d e r T a k e o r Pa y w i t h SD C W A ) 2, 5 0 0 2, 5 0 0 2, 5 0 0 2, 5 0 0 2, 5 0 0 2, 5 0 0 2, 5 0 0 2, 5 0 0 2, 5 0 0 2, 5 0 0 Su b t o t a l P o t a b l e 14 , 9 1 5 14 , 9 1 5 16 , 1 7 4 16 , 1 7 4 16 , 2 6 3 16 , 2 6 3 16 , 3 6 8 16 , 3 6 8 16 , 4 8 7 16 , 4 8 7 Su b t o t a l N o n -Po t a b l e 3, 8 9 8 10 , 5 3 9 4, 2 1 8 10 , 5 3 9 4, 2 1 8 10 , 5 3 9 4, 2 1 8 10 , 5 3 9 4, 2 1 8 10 , 5 3 9 To t a l 18 , 8 1 3 25 , 4 5 4 20 , 3 9 2 26 , 7 1 3 20 , 4 8 1 26 , 8 0 2 20 , 5 8 6 26 , 9 0 7 20 , 7 0 5 27 , 0 2 6 Not e s : CM W D r e c e i v e s 2 , 5 0 0 A F Y d e s a l i n a t e d w a t e r t h r o u g h a p u r c h a s e a g r e e m e n t w i t h S D C W A . I f t h e p l a n t p r o d u c e s m o r e d e s a l i n a t e d w a t er a n d S D C W A p u r c h a s e s mo r e t h a n t h e 4 8 , 0 0 0 A F Y t h a t i t c u r r e n t l y p u r c h a s e s , C M W D m a y r e c e i v e a n a d d i t i o n a l 5 . 2 1 % o f t h e a d d i t i o n a l a m o u n t a v a i l a b l e . B e c a u s e o f u n c e r t a i n t y r e g a r d i n g t h i s wa t e r , i t h a s b e e n o m i t t e d f r o m t h i s t a b l e a s a n a v a i l a b l e v o l u m e . P u r c h a s e s f r o m S D C W A a r e n o t l i m i t e d b y T o t a l R i g h t o r S a f e Y i e l d . May 12, 2026 Item #10 Page 99 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-25 6.10 Special Considerations Special conditions that may affect CMWD’s water supply include climate change and regulatory impacts on the reliability of surface water supplies, particularly imported surface water supplies. 6.10.1 Climate Change Impacts Climate change is a concern for CMWD and other agencies within the San Diego region. A summary of climate change vulnerabilities, impacts, and actions to address these impacts is provided in Section 3 System Description. While the exact effects of climate change are unknown, average temperatures will increase, weather events will be more intense and more frequent, and precipitation patterns will change. As with other agencies in the region, CMWD relies heavily on water purchased from SDCWA and more than half of the SDCWA’s portfolio comes from imported supplies (SDCWA 2026). These imported supplies come from the SWP and the Colorado River. SWP reliability is dependent on rainfall and snowpack, and the timing of snowmelt. Climate change will make snowpack less reliable, either through changes in amount of water stored in snowpack, or through changes to the timing of snowmelt (e.g., earlier melt means excess water is available when demands are low, and less water is available during warmer months when demands are higher). Extreme weather events could damage imported water infrastructure or could exacerbate drought conditions. Extreme climate events, such as prolonged droughts, are also expected to increase fire event frequency and severity, further exacerbating water quality issues and flooding risk associated with fire-prone and flood-prone areas. As identified by the Climate Change Vulnerability Assessment (see Section 3 System Description), drought was identified as a significant climate hazard for the city’s infrastructure and facilities, receiving a high vulnerability score. This high vulnerability score reflects substantial impacts that drought conditions can have on infrastructure and facilities. Local supply development is anticipated to help mitigate climate change impacts by developing drought-resilient supplies (e.g. recycled water), reducing potential supply disruptions from imported water, and reducing overall energy demands for providing water to customers. 6.10.2 Regulatory Conditions One of the most significant regulatory drivers is the ongoing update of the Bay-Delta Water Quality Control Plan, which governs flow, salinity, and ecosystem protection measures for the Sacramento–San Joaquin Delta. The Bay-Delta watershed supplies a substantial portion of the SWP deliveries that ultimately support SDCWA and MWD supplies delivered to CMWD. Draft updates released in 2024–2025 propose new flow May 12, 2026 Item #10 Page 100 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-26 objectives and implementation pathways that could alter SWP operations and influence the availability of imported supplies to Southern California. These include both a regulatory compliance pathway and an alternative voluntary-agreement pathway, each imposing different flow and habitat commitments that may affect future statewide conveyance reliability. In addition to SWP supplies, Carlsbad receives imported water from the Colorado River via SDCWA and MWD. The regulatory landscape governing Colorado River supplies is undergoing significant transition as several foundational agreements, including the 2007 Interim Guidelines, the 2019 Drought Contingency Plans, and United States–Mexico agreements under the 1944 Water Treaty, are set to expire at the end of 2026 (Bureau of Reclamation 2026). In response, the Bureau of Reclamation has initiated the Post-2026 National Environmental Policy Act (NEPA) process, a multi-year effort that will define future operating rules for Lakes Mead and Powell and guide basin-wide water management for decades; a Draft Environmental Impact Statement was released in January 2026 for public review and comment. Meanwhile, negotiations among the seven basin states remain strained. Despite more than two years of discussions to restructure the century-old allocation framework, negotiators missed the November 2025 and the February 2026 milestones and now face a timeline of summer or fall 2026 to reach consensus before the federal government imposes its own plan, with recent reports indicating that states remain at an impasse over shortage-sharing and operational strategies. The prolonged uncertainty, exacerbated by federal indications that it may need to assume greater management authority if no agreement is reached, creates ongoing regulatory risk for agencies dependent on Colorado River supplies. Additional statewide regulatory shifts, including evolving conservation reporting requirements, updated demand management expectations, and newly adopted potable reuse regulations, also have the potential to influence future local supply development and projected demands. These changes underscore the need for continued monitoring of state rulemaking and coordination with SDCWA and MWD to ensure supply planning reflects current and anticipated regulatory conditions. 6.10.3 Other Locally Applicable Criteria The reliability of CMWD’s water supplies is closely tied to the regional wholesale dynamics between the SDCWA and MWD, the two agencies responsible for delivering imported Colorado River and SWP supplies to the region. Historically, SDCWA and MWD were engaged in a 15-year legal dispute over rates and the terms of conveying conserved Colorado River water, creating long-term uncertainty in wholesale pricing and cost allocation. However, in June 2025 the two agencies reached a landmark settlement that May 12, 2026 Item #10 Page 101 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-27 ended all outstanding litigation, established a predictable fixed rate structure for water transfers beginning in 2026, and committed both agencies to improved collaboration and regional water supply efficiency (SDCWA 2025). The settlement replaces years of conflict with a cooperative framework aimed at fiscal stability, enhanced reliability, and streamlined management of imported supplies. These benefits extend directly to retail agencies like CMWD, which depend on SDCWA for consistent and cost-stable wholesale water deliveries. 6.11 Energy Intensity CMWD elected to estimate the energy intensity of its potable supplies using Appendix O of the Guidebook. A technical memorandum and the applicable DWR Appendix O tables have been included here as Appendix G of this 2025 UWMP. Water energy intensity (EI) is the total amount of energy expended on a per AF basis to take water from the location CMWD acquires it to the point of delivery. Thus, EI includes conveyance, extraction, treatment, placing water into and taking it from storage, and distribution. CMWD’s water EI only accounts for the water management processes occurring within its operational control; energy use associated with the extraction, treatment and conveyance of wholesale water to CMWD’s points of diversion is not included. CMWD receives its potable water from SDCWA and this water is already treated prior to entering CMWD’s distribution system. CMWD also receives potable water from the Carlsbad Desalination Plant. The desalinated water is also already treated prior to entering CMWD’s operational control and the energy involved in delivering the desalinated water is captured in the overall distribution system energy demands. Thus, energy demands for CMWD’s potable system are limited to the requirements for distribution and limited local storage. As of 2026, CMWD’s potable water distribution system is entirely gravity fed. Using San Diego Gas & Electric billing data for CMWD, which documents the amount of power needed to serve CMWD potable water equipment, such as chlorination equipment, pumping, and SCADA monitoring equipment, CMWD’s total energy use associated with potable water supplies for January-December 2025 was 308,318 kWh. During this same timeframe, CMWD received 14,462 AF of water, including desalinated seawater and purchased water from SDCWA that was placed in local storage or distributed to customers. Note that water placed in storage in any given year is excluded from gross water use reported elsewhere in this document. CMWD uses hydropower from the pressure difference of purchased SDCWA water and CMWD operational pressures. During the time period from January – December 2025, CMWD generated 220,602 kWh of hydropower from this source. This represents seven months of energy generation as the May 12, 2026 Item #10 Page 102 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 6: Water Supply 6-28 hydrogenator was down for repairs and maintenance during five months last year. This type of hydropower is referred to by DWR as “consequential” hydropower because it is generated as a consequence of water delivery. According to DWR recommended methods for estimating EI (Appendix O of the Guidebook), this “consequential” hydropower is subtracted from CMWD’s total energy use, to result in a net energy use of 87,716 kWh over the 2025 year. CMWD’s potable water system therefore had a local EI of 14.31 kWh/MG in 2025, as calculated according to the DWR UWMP Guidebook Appendix O methods. Repair and replacement of the hydrogenator will result in higher consequential hydropower in the future, which will lower CMWD’s potable water EI. The energy savings are applied to other utilities electric bills as credits. Monthly energy demands vary greatly from month to month, depending on the length of time water remains in local storage, the level of demand (affecting pumping and storage levels), and the need to implement minor treatment or mixing to maintain potable quality. In addition, CMWD has made investments in its potable water distribution system to rely primarily on gravity instead of pumps. According to Appendix O of the Guidebook, “the energy intensity of recycled water operations is the incremental amount of energy consumed within an urban water supplier’s operational control to convey, treat, and distribute recycled water supplies that exceeds the amount of energy that otherwise would have been required to collect, treat, and discharge wastewater effluent divided by the amount of water entering the recycled water distribution system.” CMWD, through its contract with EWA operators, is responsible for operational control over the Carlsbad WRF. The amount of electricity used by the Carlsbad WRF for recycled water treatment during the period January-December 2025 was 1,400,207 kWh according to EWA invoice records. In addition, CMWD has operational control over recycled water distribution, which used 2,817,429 kWh over the time period January-December 2025. Energy consumption for recycled water distribution has been unusually high since December 2024 when the Meadowlark WRF was taken offline for maintenance. In a typical year, CMWD gravity feeds recycled water from the Meadowlark WRF. However, more energy was needed in 2025 to power CMWD pumps in order to distribute recycled water to Mahr reservoir. The Meadowlark WRF is expected to become operational in August 2026, at which time energy consumption for recycled water distribution will resume typical, lower levels. During that time period, 5,356 AF of recycled water entered CMWD’s recycled water process and 3,708 AF of recycled water was delivered to customers. CMWD does not have operation control over wastewater treatment which could be netted out of the energy consumed to treat and distribute recycled water supplies. CMWD’s recycled water EI was 1,428 kWh/MG in 2025, as calculated according to the DWR UWMP Guidebook Appendix O methods. May 12, 2026 Item #10 Page 103 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-1 7. WATER SUPPLY RELIABILITY AND DROUGHT RISK ASSESSMENT CMWD’s potable water reliability is dependent on the availability of SDCWA’s supplies. CMWD has improved its supply reliability by increasing recycled water use, using local desalinated seawater, and reducing water demands. These two sources of local supply are generally drought-resistant and highly reliable, while reducing imported demands lessens the impact statewide restrictions have on CMWD’s access to potable supplies. SDCWA has also taken action to expand its supply portfolio and decrease dependence on water imported via MWD; however, there remain several threats to supply reliability within CMWD’s service area. 7.1 Constraints on Water Resources CMWD’s water supply reliability is affected by legal, environmental, water quality, or climatic factors. As noted throughout the 2025 UWMP, CMWD’s potable demands are served with potable water purchased from SDCWA and is subject to availability of and access to those supplies. A lack of supply diversity contributes to potential supply constraints. Table 7-1 provides a summary of potential threats to supply reliability for CMWD’s various sources of potable and non-potable water. TABLE 7-1: CONSTRAINTS ON WATER SUPPLIES Source Potential Constraint on Supply Imported Water1 Legal: Current supply from SWP is occasionally inconsistent due to legal and environmental factors. Future supply may not be consistent due to delays in construction, legal rulings, or environmental decisions. Colorado River supplies are subject to legal decisions regarding the Quantification Settlement Agreement, which could reduce future supplies. Climatic: Drought and climate change could result in reductions of imported water supply. This risk increases during extended drought, when both SWP and Colorado River supply may be reduced. Mandatory use restrictions imposed by the State during drought may affect ability to utilize supply, even if sufficient supplies are available locally. Desalinated Seawater No constraints identified at this time unless unexpected infrastructure failure occurs. Groundwater Legal: CMWD has uncertain groundwater rights. Water quality: The Mission Sub-Basin has high levels of total dissolved solids (TDS) and requires desalination for potable use. Other: Groundwater basins in the region have limited storage capacity. Recycled Water Cost: Cost of recycled water system expansion can make it challenging to complete connections. 1 Refer to SDCWA’s 2025 UWMP for additional details regarding constraints on their supplies May 12, 2026 Item #10 Page 104 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-2 Throughout the 2025 UWMP planning cycle, CMWD and SDCWA coordinated on reliability and water use forecasts. CMWD provided SDCWA with information on population growth and planned developments within the CMWD service area. SDCWA’s 2025 UWMP water use forecast differs from CMWD’s in that it incorporates a complex collection of datasets into a statistical model. However, the 2025 UWMPs are similar in that they incorporate anticipated local development growth into their forecasts of water demand. In meetings between SDCWA and CMWD during the 2025 UWMP planning cycle, SDCWA confirmed that the minor differences in forecasted water use are not an issue for long-range reliability planning in SDCWA’s service area. 7.1.1 SDCWA Supply Constraints and Reliability Actions SDCWA’s supply portfolio consists primarily of imported water from various sources, supplemented by desalinated seawater and runoff captured in local reservoirs. As noted in Table 7-1, the principal constraints on SDCWA’s imported supplies stem from legal and climatic factors. SWP deliveries may be curtailed during drought periods or seasonally due to regulatory requirements to maintain environmental flows or comply with judicial rulings and other legal agreements. Additionally, SWP conveyance may be interrupted by infrastructure outages related to maintenance, construction, or unforeseen events. Colorado River imports are governed by the Quantification Settlement Agreement (QSA), which remains subject to potential modification through legal processes; however, these supplies are generally regarded as more reliable than SWP deliveries and are not expected to experience similar constraints. Colorado River water does exhibit higher total dissolved solids (TDS) concentrations compared to SWP water, influencing SDCWA’s blended raw water quality. This characteristic does not impact CMWD’s supply reliability, as CMWD purchases treated water from SDCWA rather than raw water. Drought may also reduce availability of imported water to SDCWA, thereby reducing supply reliability for CMWD. During the 2014 drought, SWP deliveries were subject to allocation reductions in 2014, 2015, and 2016. Under the Lower Colorado River Basin Drought Contingency Plan (Lower Basin DCP; USBR 2019), California contractors, including MWD and SDCWA, committed to shortage allocations or “DCP Contributions” starting when the elevation of Lake Mead, a major storage reservoir, dropped to 1,045 feet. According to SDCWA’s 2025 UWMP, as of April 2025, projections indicate that it is unlikely that Lake Mead will reach a level that requires contributions from California thorough 2026. Operating agreements are set to expire in 2026 and new agreements would be negotiated to govern storage and cutbacks beyond 2026. Over the last decades, SDCWA has taken steps to diversify its water supply with alternative sources and increase water reliability for the region. Such efforts include canal lining and May 12, 2026 Item #10 Page 105 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-3 the Carlsbad Desalination Plant. SDCWA’s canal lining project provides conserved water by preventing unplanned loss to incidental recharge. This conserved water is guaranteed for SDCWA under the terms of the project. SDCWA also enabled construction of the Carlsbad Desalination Plant by agreeing to a minimum annual purchase of desalinated water from the facility. This increases supply reliability because it is a drought-proof local supply. Desalinated seawater from the Carlsbad Desalination Plant meets approximately 8% of the region’s potable water demands. In 2021, SDCWA enhanced system reliability by completing major rehabilitation of the historic First Aqueduct and installing new fish-friendly intake pumps at the Carlsbad Desalination Plant, improving both resilience and operational performance (SDCWA 2021). The reduced availability of any one of SDCWA’s supply sources would be buffered because of the diversity of the supplies; the region’s wholesale supplies are not reliant on a single source. To replace or supplement an existing supply, SDCWA could take steps to increase development of transfers or distribution of seawater desalination. SDCWA’s 2025 UWMP should be consulted for details regarding its actions to ensure consistency of the wholesale water supply. While regional efforts to improve supply diversification, storage, and system redundancy have worked to reduce the impacts such allocations have on local access to supplies, there is potential that mandatory use restrictions (at a statewide level) will be enacted during severe drought. Such restrictions, including those put in place by the State in 2015, may not affect supply that the region has in storage, but could affect the region’s ability to utilize supplies. In addition, many of SDCWA’s member agencies are taking steps to diversify their water supplies through recycled water, groundwater, potable reuse and other local supply projects. These local and regional efforts to invest in major capital infrastructure projects and implement adaptive management initiatives have resulted in substantial long-term water use efficiency gains across the region. By improving water efficiency, the region is protecting the reliability of its various supplies. 7.1.2 CMWD Local Supply Constraints and Reliability Actions CMWD’s reliance on SDCWA for potable supplies creates vulnerability to potential supply disruptions within SDCWA’s system. As a result, CMWD expanded its local resources, which currently include recycled water and desalinated seawater, along with potential rights to a potential groundwater source. Constraints on recycled water are capacity, connectivity, and the associated costs of providing additional connections. CMWD’s Phase III Recycled Water Project expanded its tertiary recycled water production capacity, storage, and distribution system to serve additional customers. The Phase III Recycled Water Project was completed in 2025. May 12, 2026 Item #10 Page 106 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-4 Although there are currently no feasible new additional recycled water pipeline connections identified, it is possible that some additional customers could be converted to recycled water if they are located adjacent to the existing system. However, such demand for recycled water are expected to be low, and timing and ability to convert additional customers remains uncertain. As such, CMWD has conservatively assumed in this 2025 UWMP that recycled water demand will not increase beyond 2025. As part of the NSDWRC, CMWD is participating in a cooperative effort of nine north San Diego County water and wastewater agencies to maximize recycled water use and improve interconnectivity between their non-potable water systems. This effort would allow for additional flexibility in non-potable water system operation and increase recycled water efficiencies; however, cost estimates for infrastructure and water rates are considered prohibitive to the projects moving forward at this time. To help defray the cost of expanding its recycled water services, CMWD has actively pursued additional funding programs to help cover costs of the Phase III Recycled Water Project, including grants from the state’s Proposition 84 and Proposition 1, and U.S. Bureau of Reclamation’s Title XVI program, as well as a low-interest loan through the Clean Water State Revolving Fund. While CMWD is currently receiving its desalinated seawater via SDCWA’s pipelines, it is not exploring constructing a direct connection to the desalinated seawater pipeline at this time. A direct connection between the Carlsbad 5 Flow Control Facility and Pressure Reducing Station and the Carlsbad Desalination Plant would provide a local, drought-proof supply that would function independently of SDCWA’s distribution system. This would create redundancy in the potable distribution system that would increase reliability of water deliveries from a drought-proof, secure, supply. As noted in Chapter 6, CMWD is not pursuing further development of this supply at this time. To further diversify its local supplies, CMWD is continuing to monitor the costs and benefits of developing its groundwater rights (refer to Section 6 Water Supply). Groundwater in the Mission Subbasin is high in TDS and would require desalination before use as a supply. The addition of groundwater to CMWD’s supply portfolio could reduce its reliance on SDCWA to meet potable demands. However, because CMWD is not currently working to reestablish groundwater rights and the potential available volume of groundwater supply is uncertain, it has been excluded from CMWD’s supply portfolio in this 2025 UWMP. CMWD is also collaborating with member agencies of the NSDWRC on development of a potable reuse program known as the North County One Water Program. The City of Carlsbad is expected to receive purified water from this effort by 2035. However, because the North County One Water Program is still in the planning stages, it is not counted as a verifiable future water supply for the purposes of the 2025 UWMP. May 12, 2026 Item #10 Page 107 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-5 In the event of a severe drought, CMWD could effectively implement temporary water use reduction measures as defined in the water shortage contingency plan (see Chapter 8) to assist in ensuring reliability. Such use reduction measures were implemented in the 2014 to 2017 drought and were successful in helping CMWD reach its temporary state-mandated reduction target of 28% under the State’s Emergency Drought Restrictions issued in 2015. 7.2 Water Service Reliability Assessment CMWD relies on its wholesaler’s diversified water supply portfolio designed to provide reliable potable water service under normal, single-dry, and multiple-dry year conditions. CMWD’s wholesaler, SDCWA, primarily delivers imported drinking water sourced from the Colorado River via the Colorado River Aqueduct and from Northern California through the State Water Project, from both direct, SDCWA-controlled supplies and via MWD. This section evaluates the ability of CMWD to meet projected customer demands under a range of normal, single-dry, and multiple-dry year hydrologic conditions, as required by the Urban Water Management Planning Act. The assessment examines the reliability of existing and planned water supplies, considers potential vulnerabilities, and identifies the strategies in place to ensure a consistent and sustainable water supply through the 20-year planning horizon. 7.2.1 Year Type Characterization CMWD’s available water supply is evaluated under three scenarios: an average/ normal water year, a single-dry water year, and a five-year multiple-dry water year scenario. Supplies from SDCWA during single- and multiple-dry years are based on historical drought conditions identified in Table 7-2 and defined in SDCWA’s 2025 UWMP. CMWD’s two quantified local supplies, desalinated seawater and recycled water, are considered drought-resilient and remain unaffected by dry conditions. While recycled water demand may increase during drought due to changes in irrigation practices, CMWD has sufficient production capacity to meet anticipated demand (see Table 6-6). Because potable demands beyond those that can be met by local supply are met through purchases from SDCWA, CMWD’s water supply reliability analysis is aligned with SDCWA’s reliability assessment. May 12, 2026 Item #10 Page 108 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-6 TABLE 7-2: BASIS OF WATER YEAR DATA (WATER SERVICE RELIABILITY ASSESSMENT) DWR Table 7-1 Retail: Basis of Water Year Data (Reliability Assessment) Base Year Volume Available (AFY) Available Supplies if Year Type Repeats % of Average Supply 1991-2020 20,195 100% 2013, 2018, 2021 21,461 106% 2011 21,530 107% 2012 21,737 108% 2013 21,943 109% 2014 22,152 110% 2015 22,365 111% Notes: CMWD selected base years that aligned with SDCWA’s 2025 UWMP supply reliability assessment. SDCWA supplies are expected to be reliable through all years of a multiple year drought, with additional carryover supplies available in extended dry periods. As presented here, “% of Average Supply” indicates percent supply available to meet both potable and non-potable demands due to diversification and/or carryover storage. Although Table 7-2 identifies the percentage of available supply to meet demand, supply availability will vary by source because CMWD’s local supplies would not be affected by dry year conditions. Changes to supply availability cannot be applied equally across each source. Potable and recycled water demands are both considered in CMWD’s supply reliability assessment because recycled water use offsets potable demands, while shortages in recycled water supplies require supplementation with potable supplies. 7.2.1.1 Water Service Reliability – Normal Year SDCWA’s 2025 UWMP projected overall demands would increase over time and across scenarios, with some variability depending on the time frame and hydrologic scenario. CMWD anticipates that its demands would generally increase in dry year scenarios consistent with SDCWA’s overall demand increases in corresponding scenarios. Due to uncertainty inherent to projecting demands during dry hydrologic conditions, CMWD’s demand projections increase over dry year scenarios at a consistent rate across time frames (2030, 2035, 2040, 2045, and 2050), calculated as the average increase presented in SDCWA’s 2025 UWMP. Table 7-3 identifies how CWMD’s demands are projected to change, as a percent of normal, for different scenarios. Table 7-4 demonstrates that, under normal year conditions, available supplies are sufficient to meet projected demands. May 12, 2026 Item #10 Page 109 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-7 While demands are projected to increase, SDCWA retains the right to purchase additional water from MWD in years where local supplies are insufficient to meet demands. Under SDCWA’s purchase agreement with MWD, SDCWA holds preferential rights that ensure access to water necessary to meet unmet demands across all planning scenarios. Additionally, SDCWA maintains substantial carryover storage that can be utilized during extended dry periods. SDCWA’s water service reliability analysis (SDCWA 2026) finds that there would be a supply surplus in all planning scenarios. Thus, CMWD expects to secure adequate potable supplies from SDCWA to supplement desalinated seawater, as SDCWA’s projections account for increased Member Agency demands under dry-year conditions. These projections also incorporate anticipated changes in Member Agency local supplies, ensuring a comprehensive assessment of regional demand on SDCWA resources. TABLE 7-3: SUPPLY AND DEMAND ASSUMPTIONS, AS PERCENT OF NORMAL Source Normal Water Year Single-Dry Water Year Multiple-Dry Water Years Year 1 Year 2 Year 3 Year 4 Year 5 Demands Potable Water 100% 106% 107% 108% 109% 110% 111% Recycled Water 100% 106% 107% 108% 109% 110% 111% Total Percent of Normal Demands 106% 107% 108% 109% 110% 111% Supplies SDCWA Purchases 100% 107% 108% 109% 110% 111% 113% Seawater Desalination 100% 100% 100% 100% 100% 100% 100% Recycled Water 100% 106% 107% 108% 109% 110% 111% Total Percent of Normal Potable Supplies 106% 107% 108% 109% 110% 111% Total Percent of Overall Normal Supplies 106% 107% 108% 109% 110% 111% May 12, 2026 Item #10 Page 110 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-8 TABLE 7-4: NORMAL WATER YEAR SUPPLY AND USE COMPARISON DWR Table 7-2 Retail: Normal Year Supply and Use Comparison Source 2030 2035 2040 2045 2050 Demands Potable Demand 14,915 16,174 16,263 16,368 16,487 Non-Potable Demand 3,898 4,218 4,218 4,218 4,218 Total Normal Year Demand 18,813 20,392 20,481 20,586 20,705 Supplies SDCWA Purchases 12,415 13,674 13,763 13,868 13,987 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 Normal Year Potable Supply 14,915 16,174 16,263 16,368 16,487 Recycled Water 3,898 4,218 4,218 4,218 4,218 Total Normal Year Supply 18,812 20,393 20,482 20,586 20,706 Surplus/(shortfall) 0 0 0 0 0 7.2.1.2 Water Service Reliability – Single Dry Year The single-dry year scenario is based on an average of 2013, 2018, and 2021 single dry-year supplies. SDCWA anticipates that regional demands will increase by approximately 6% in a single dry-year, and CMWD assumes this increase remains consistent throughout the planning horizon. SDCWA’s analysis, which included a conservative consideration of member agency local supplies, concludes that sufficient supplies are available to meet projected demands even under single-dry year conditions. In fact, SDCWA’s analysis (SDCWA 2026) anticipates a supply surplus. Increased member agency demand would be met with increased purchases from MWD, which SDCWA has adequate access to meet the increased demands. As a result, even if CMWD demands for SDCWA supplies were to be higher than forecasted by SDCWA, because SDCWA expects a supply surplus, CMWD assumes that SDCWA will fully meet any potable water needs not supplied by local sources, as reflected in Table 7-5 and Table 7-6. May 12, 2026 Item #10 Page 111 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-9 TABLE 7-5: SINGLE DRY YEAR SUPPLY AND DEMAND COMPARISON DWR Table 7-3 Retail: Single Dry Year Supply and Use Comparison Source 2030 2035 2040 2045 2050 Demands Potable Demand 15,850 17,187 17,282 17,394 17,520 Non-Potable Demand 4,142 4,482 4,482 4,482 4,482 Total Normal Year Demand 19,992 21,670 21,764 21,876 22,002 Supplies SDCWA Purchases 13,350 14,687 14,782 14,894 15,020 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 Single Dry Year Potable Supply 15,850 17,187 17,282 17,394 17,520 Recycled Water 4,142 4,482 4,482 4,482 4,482 Total Single Dry Year Supply 19,992 21,670 21,764 21,876 22,002 Surplus/(shortfall) 0 0 0 0 0 7.2.1.3 Water Service Reliability – Five Consecutive Dry Years Under a five-consecutive-year drought scenario, the region would experience sustained dry hydrologic conditions. Water demands for the multi-dry year scenario were calculated based on a 1% annual increase in water use from the single dry-year demand forecast, consistent with the SDCWA analysis. SDCWA’s analysis (SDCWA 2026) concludes that sufficient local and imported supplies exist to meet member agency demands throughout the 2025–2050 planning horizon. In fact, SDCWA’s water service reliability analysis finds that there would be a supply surplus in all planning scenarios. This approach accounts for the demand management actions anticipated from SDCWA and its member agencies during drought conditions, which are expected to limit demand increases relative to what typically occurs under hot and dry weather. Consistent with SDCWA’s findings, CMWD assumes that any demand exceeding local supply capacity will be met through additional purchases from SDCWA, and that SDCWA has sufficient supplies to meet this increased demand. The SDCWA anticipates a surplus of water supplies in all five years of a drought and would have enough supply to meet CMWD’s increased demands, even if CMWD demands are greater than expected. As shown in Table 7-5 and Table 7-6, CMWD’s projected supplies for single- and multiple-dry year scenarios are adequate to meet demand without requiring extreme conservation measures. While the analysis below shows supply would equal demand, CMWD has access to greater supply if demand exceed expectations because the SDCWA has additional supplies available beyond those currently provided to CMWD. May 12, 2026 Item #10 Page 112 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-10 TABLE 7-6: MULTIPLE DRY YEARS SUPPLY AND DEMAND COMPARISON DWR Table 7-4 Retail: Multiple Dry Years Supply and Use Comparison Source 2030 2035 2040 2045 2050 Multiple-Dry Year (First Year) Potable Water Demands 15,901 17,243 17,338 17,450 17,577 Non-Potable Demands 4,156 4,497 4,497 4,497 4,497 Total Multiple-Dry Year 1 Demand 20,057 21,740 21,835 21,947 22,074 SDCWA Purchases 13,401 14,743 14,838 14,950 15,077 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 Multiple-Dry Year 1 Potable Supplies 15,901 17,243 17,338 17,450 17,577 Recycled Water 4,156 4,497 4,497 4,497 4,497 Total Multiple-Dry Year 1 Supply 20,057 21,740 21,835 21,947 22,074 Multiple-Dry Year (Second Year) Potable Water Demands 16,054 17,409 17,505 17,618 17,746 Non-Potable Demands 4,196 4,540 4,540 4,540 4,540 Total Multiple-Dry Year 2 Demand 20,249 21,949 22,045 22,158 22,286 SDCWA Purchases 13,554 14,909 15,005 15,118 15,246 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 Multiple-Dry Year 2 Potable Supplies 16,054 17,409 17,505 17,618 17,746 Recycled Water 4,196 4,540 4,540 4,540 4,540 Total Multiple-Dry Year 2 Supply 20,249 21,949 22,045 22,158 22,286 Multiple-Dry Year (Third Year) Potable Water Demands 16,206 17,574 17,671 17,785 17,914 Non-Potable Demands 4,235 4,583 4,583 4,583 4,583 Total Multiple-Dry Year 3 Demand 20,441 22,157 22,254 22,368 22,497 SDCWA Purchases 13,706 15,074 15,171 15,285 15,414 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 Multiple-Dry Year 3 Potable Supplies 16,206 17,574 17,671 17,785 17,914 Recycled Water 4,235 4,583 4,583 4,583 4,583 Total Multiple-Dry Year 3 Supply 20,441 22,157 22,254 22,368 22,497 May 12, 2026 Item #10 Page 113 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-11 DWR Table 7-4 Retail: Multiple Dry Years Supply and Use Comparison Source 2030 2035 2040 2045 2050 Multiple-Dry Year (Fourth Year) Potable Water Demands 16,360 17,741 17,839 17,954 18,085 Non-Potable Demands 4,276 4,627 4,627 4,627 4,627 Total Multiple-Dry Year 4 Demand 20,636 22,368 22,466 22,581 22,711 SDCWA Purchases 13,860 15,241 15,339 15,454 15,585 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 Multiple-Dry Year 4 Potable Supplies 16,360 17,741 17,839 17,954 18,085 Recycled Water 4,276 4,627 4,627 4,627 4,627 Total Multiple-Dry Year 4 Supply 20,636 22,368 22,466 22,581 22,711 Multiple-Dry Year (Fifth Year) Potable Water Demands 16,517 17,912 18,010 18,126 18,258 Non-Potable Demands 4,317 4,671 4,671 4,671 4,671 Total Multiple-Dry Year 5 Demand 20,834 22,583 22,681 22,798 22,929 SDCWA Purchases 14,017 15,412 15,510 15,626 15,758 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 Multiple-Dry Year 5 Potable Supplies 16,517 17,912 18,010 18,126 18,258 Recycled Water 4,317 4,671 4,671 4,671 4,671 Total Multiple-Dry Year 5 Supply 20,834 22,583 22,681 22,798 22,929 7.2.2 Management Tools and Options CMWD employs a combination of local supply development, Demand Management Measures (DMMs), and regional coordination to maximize the use of local water resources and reduce reliance on imported water supplies. CMWD’s local supply portfolio includes recycled water and seawater desalination through regional partnerships. These local supplies supplement purchased water from SDCWA and improve overall supply reliability, particularly during drought conditions. CMWD implements comprehensive DMMs that reduce potable water demand and enhance the effectiveness of local supplies. These measures include enforceable water waste prevention ordinances, full metering of all water connections, conservation-oriented rate structures, advanced metering infrastructure with real-time leak detection, and proactive management of distribution system water losses. Ordinance May 12, 2026 Item #10 Page 114 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-12 No. 48, now codified into CMWD Water Code under Title 3, establishes a six-level Water Shortage Contingency framework that enables CMWD to implement progressively stringent mandatory demand reductions in response to regional supply conditions. Public education, outreach, and incentive programs further support long-term demand reductions. CMWD collaborates with regional partners to provide rebates, water audits, landscape education, school programs, and conservation outreach that promote efficient indoor and outdoor water use. These programs result in permanent reductions in potable water demand, allowing local water supplies to meet a greater share of system needs. Recycled water is another key component of CMWD’s local supply strategy, with non-potable demands such as landscape irrigation increasingly served by recycled water rather than potable supplies. Ongoing coordination with regional agencies supports continued expansion of recycled water use where feasible. 7.3 Drought Risk Assessment As part of this 2025 UWMP, a Drought Risk Assessment (DRA) was conducted to evaluate the reliability of each supply source under extended drought conditions. The findings of the DRA inform the development of demand management strategies and future water supply projects, while also serving as a tool to assess the effectiveness of CMWD’s Water Shortage Contingency Plan (WSCP). This evaluation helps identify potential vulnerabilities and supports proactive planning to mitigate risks before the onset of a prolonged drought. The DRA may be updated periodically to incorporate new data or address unforeseen circumstances, ensuring continued relevance and adaptability. 7.3.1 Data and Methodology Per UWMP requirements, the DRA is based on the five driest consecutive years on record. To align with SDCWA’s DRA, the historical period used in this analysis is the period from 2014 to 2018. This represents the five-year period SDCWA determined had the lowest local water supply production from surface water and groundwater, the two local water supplies most susceptible to weather-induced variation. Per SDCWA’s methodology, projected local surface water and groundwater supplies reflect actual production from 2014 to 2018. Other local supplies are assumed not to experience a reduction in availability over the five-year dry period because of the drought-resilience of these supplies. CMWD’s existing local supplies, desalinated seawater and non-potable recycled water, are held constant at current 2025 production volumes for the purposes of the DRA. Projected demands were calculated by escalating 2025 demands annually for five years based on multipliers provided by SDCWA (shown in Table 7-6). The multipliers are based May 12, 2026 Item #10 Page 115 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-13 on a weather index developed to assess the impact of dry/hot weather on demands (SDCWA 2025). 7.3.2 Determination of Reliability SDCWA anticipates a surplus of water supplies in all five years of a drought and would have enough supply to meet CMWD’s increased demands. Based on the analysis shown in Table 7-7, CMWD would be able to meet its water demands in all five years, before accounting for the impacts of any actions under the WSCP. May 12, 2026 Item #10 Page 116 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 7: Supply Reliability and Drought Risk Assessment 7-14 TABLE 7-7: FIVE-YEAR DROUGHT RISK ASSESSMENT TABLES DWR Table 7-5: Five-Year Drought Risk Assessment Water Code Section 10635(b)(3) CMWD Drought Risk Assessment 2026 2027 2028 2029 2030 Local Supplies1 Seawater Desalination 2,500 2,500 2,500 2,500 2,500 Non-Potable Recycled Water 3,708 3,708 3,708 3,708 3,708 Total Projected Local Supplies 6,208 6,208 6,208 6,208 6,208 Demand CY 2025 Demand1 18,170 18,170 18,170 18,170 18,170 Demand Projection Multiplier2 109% 109% 111% 114% 116% Consecutive 5-Year Drought Demand 19,805 19,805 20,169 20,714 21,077 SDCWA Purchases3 13,597 13,597 13,597 13,597 13,597 Total Projected Supplies with SDCWA Purchases 19,805 19,805 20,169 20,714 21,077 Impacts of WSCP Actions 0 0 0 0 0 Remaining Potential Surplus Supply, or (Shortage) that will be addressed through Management Actions 0 0 0 0 0 1. All supplies held constant at actual CY 2025 levels to align with SDCWA 2025 UWMP methodology. 2. Based on a weather index developed to assess the impact of dry/hot weather on water demands, used in SDCWA's 2025 UWMP. 3. SDCWA anticipates having a surplus of supply per its 2025 UWMP. May 12, 2026 Item #10 Page 117 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-1 8.WATER SHORTAGE CONTINGENCY PLAN CMWD’s arid climate, limited local supplies, and growing population make water shortage planning an important component of supply management, especially in light of the region’s history with severe drought and the potential for increased frequency, intensity, and duration of droughts due to climate change. CMWD has adopted measures and plans to address water shortages, should supplies be more limited than demand. This section describes CMWD’s Water Shortage Contingency Plan (WSCP), considers the potential impacts shortages could have on revenue and expenses, and summarizes CMWD’s planned response in the event of catastrophic supply loss. 8.1 Water Supply Reliability Analysis In July 2024, CMWD codified all of its water Ordinances into the Carlsbad Municipal Water District Code (CMWD Water Code) as part of a District and City effort to organize and provide consistency in municipal and water code requirements and references (City of Carlsbad 2024). Title 3 of the CMWD Water Code now includes the requirements from the two primary ordinances in place to prohibit water waste and encourage water use efficiency within its service area (Ordinance No. 44 – Drought Response Plan and Water Conservation Program and Ordinance No. 46 – Watering Schedules), which were both adopted in 2009. On June 7, 2022, CMWD adopted Ordinance No. 48, which amended Ordinance No. 44 and No. 46 to better align its regulatory framework with changes at the regional and state level around drought and conservation. The CMWD Water Code (City of Carlsbad N.d.) is updated as needed to comply with State regulations and regional response to drought conditions. CMWD Water Code Title 3, Chapter 3.12 (previously Ordinance No. 48) mirrors SDCWA’s 2020 Model Drought Ordinance and establishes a six-level Water Shortage Contingency framework, consistent with WSCP guidance from DWR (Table 8-2). CMWD Water Code Title 3, Chapter 3.12 provides CMWD with the authority to declare water shortage levels based on regional supply conditions and to implement progressively stringent water conservation measures as shortages intensify. CMWD Water Code Title 3, Chapter 3.12 includes both permanent water-waste prohibitions and mandatory demand reduction actions tied to each shortage level, ensuring a structured and enforceable response to drought conditions. The ordinance modernizes and expands CMWD’s previous drought provisions by incorporating updated statewide requirements, improving consistency with the WSCP, and ensuring that CMWD can respond effectively to shortages of varying severity. A complete copy of the CMWD Water Code is included in Appendix H and the contents of each are described in further detail below. May 12, 2026 Item #10 Page 118 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-2 Because CMWD is dependent upon SDCWA for its water supply, SDCWA’s 2025 UWMP should also be consulted for its water shortage contingency plan. Emergency response stage actions become effective when SDCWA declares that it is unable to provide sufficient water supplies to meet the ordinary demands and requirements of its member agencies to the extent that insufficient water would be available. When SDCWA announces its stage declaration, CMWD concurrently declares its corresponding stage. 8.1.1 Legal Authorities Under California law, including CWC Chapters 3.3 and 3.5 of Division 1, Parts 2.55 and 2.6 of Division 6, Division 13, and Article X, Section 2 of the California Constitution, the CMWD Board of Directors is authorized to implement the water shortage actions outlined in this Water Shortage Contingency Plan (WSCP). In all water shortage cases, shortage response actions to be implemented will be at the discretion of the Board of Directors and will be based on an assessment of the supply shortage, customer response, and need for demand reductions. It is noted that upon proclamation by the Governor of a state of emergency under the California Emergency Services Act (Chapter 7 [commencing with Section 8550] of Division 1 of Title 2 of the Government Code) based on drought conditions, the State will defer to implementation of locally-adopted water shortage contingency plans to the extent practicable. CMWD will coordinate with regional and local water suppliers for which it provides water supply services for possible proclamation of a local emergency as necessary. 8.1.2 Plan Adoption, Submittal and Availability CMWD’s WSCP is a part of CMWD’s 2025 UWMP, however, the WSCP also functions as a stand-alone document that can be amended, as needed, without amending the City’s 2025 UWMP. Additional requirements of the WSCP, such as the annual supply and demand reliability assessment protocol, are described below. The process for approving WSCP amendments and conducting required public hearings are described in Section 10 Plan Adoption, Submittal, and Implementation. 8.2 Annual Water Supply and Demand Assessment Procedures This section describes the procedures used to conduct and approve the Annual Assessment. While the UWMP’s Drought Risk Assessment (DRA) assesses longer-term, multi-year water supply reliability, the Annual Assessment focuses on actual forecasted near-term water supply conditions (i.e., next 12 months). The prescribed steps and annual timing to complete the Annual Assessment and submit the final report are listed below to ensure consistency year-after-year regardless of CMWD staff changes: May 12, 2026 Item #10 Page 119 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-3 1. March - April a. CMWD determines CMWD local supply available. b. CMWD coordinates with SDCWA to gather necessary information to conduct SDCWA Annual Assessment. 2. May a. SDCWA announces member agency allocation determination for current year. b. SDCWA determines carryover (and emergency storage apportionments if under emergency). c. CMWD conducts Annual Assessment: i. CMWD determines total supply available – inclusive of imported water supply. ii. CMWD determines infrastructure constraints (including water quality conditions limiting local sources). iii. CMWD determines expected estimated demand for current year and one subsequent dry year. iv. CMWD compares supply and demand and makes a determination of the water supply reliability. 3. June a. CMWD General Manager reviews and approves Annual Assessment determination. b. CMWD coordinates with SDCWA on submittal of the report. Annual Assessment report to be submitted to the state by July 1. 8.2.1 Decision-Making Process The Annual Assessment will document any anticipated shortage, any triggered shortage response actions, associated compliance and enforcement actions, and communication actions, should the following year be a dry year. These results and recommendations of the Annual Assessment will be provided to the General Manager for approval. In the event of anticipated foreseen water shortage level, if any, which would trigger recommendations for specific shortage response actions, this would be presented to the Board of Directors. However, the Board of Directors has the discretion to declare water shortage levels at any time during the year that is appropriate, outside of the Annual Assessment process. May 12, 2026 Item #10 Page 120 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-4 8.2.2 Water Supply Projection: Data Inputs and Methodology For the Annual Assessment, CMWD evaluates the reliability of the water system for the coming year, assuming it will be a dry year. Under normal (non-shortage) conditions, CMWD can purchase as much water as necessary from SDCWA to meet demands. When that supply (imported supply) is under shortage conditions, the amount of shortage (allocation of shortage) specific to CMWD is determined in a process led by SDCWA. Evaluation of CMWD supply begins with SDCWA’s own supply evaluation as CMWD receives a large portion of its water supply from the SDCWA regional supply system. SDCWA uses the availability of CMWD’s local supplies to determine CMWD’s imported water allocation. As such, in years in which imported supply is short, CMWD’s imported supply is dependent on availability of local supplies. To inform SDCWA’s allocation process, CMWD must describe and quantify in AF, each source of CMWD-owned water supply. CMWD’s local water supply portfolio consists of desalinated seawater and recycled water. In the event of a regional shortage, imported water supplies include SDCWA imported water and SDCWA carryover storage. The available water supply evaluation considers hydrological and regulatory conditions. The methodology for determining the available supply from each water supply source is presented in Table 8-1. TABLE 8-1: SUPPLY SOURCE AVAILABILITY EVALUATION METHODOLOGY Supply Source Evaluation Methodology Desalinated Seawater Assume 2,500 AFY and apply potential production constraints Recycled Water (Non-Potable) Determine previous year’s production and account for potential decreases in wastewater flow SDCWA Imported Water Allocation determined by SDCWA, based on SDCWA’s UWMP reliability analysis for supply availability during dry years or as provided by SDCWA SDCWA Carryover Storage Determine available supply to CMWD based on SDCWA WSCP and the most recent information 8.2.3 Planned Water Use for Current Year and Subsequent Dry Year: Data Inputs and Methodology Unless otherwise specified, the Annual Assessment uses CMWD’s most recent unconstrained demand forecast to determine its current year water use. Unconstrained demand is defined as CMWD’s expected customer water need for the coming year prior to the application of shortage response actions. This is determined based on actual water use for the current year and consideration of required conservation (if any) across the year May 12, 2026 Item #10 Page 121 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-5 that could have reduced water use below CMWD’s unconstrained demand, along with projected water use as identified in this UWMP. Additional real-time adjustments would be applied to account for factors such as weather, prior-year conditions, anticipated new demands for the year, and other factors pertinent to the land use and customer use patterns. Dry year demand is based on the single-dry year as defined in Section 7 Water Supply Reliability Assessment of CMWD’s 2025 UWMP, or in the event that the region is experiencing drought, the appropriate year of the multiple dry year scenario. Each year’s assessment will be informed by the characterizations in Section 6 Water Supply and other current pertinent factors and considerations. 8.2.4 Infrastructure Considerations: Data Inputs and Methodology CMWD is required to describe the methodology for identifying existing water supply infrastructure capabilities and potential constraints. CMWD’s existing water supply infrastructure is well-documented in its GIS system and continuously assessed by Water System Operations staff. Existing water supply infrastructure includes CMWD-owned infrastructure and imported and purchased water infrastructure. CMWD-owned infrastructure includes water treatment plants, pipelines, and pump stations. Imported and purchased water infrastructure includes a seawater desalination plant, and SDCWA’s aqueducts and regional pipelines. CMWD will evaluate existing water supply and capacities, as well as any constraints for the current year and for one subsequent dry year. CMWD-owned infrastructure constraints may consider service area-level supply capabilities in the current year, such as shut-downs due to maintenance, construction impacts, and water quality impacts. In addition, CMWD should also consider new projects that may add capacity. Once constraints have been identified, CMWD will determine whether the total quantified water supply (as determined according to Section 8.2.2 above) should be adjusted to account for these identified constraints. CMWD will coordinate with SDCWA to evaluate regional infrastructure constraints to determine how they would impact available CMWD water supplies, as applicable. 8.2.5 Evaluation Criteria: Data Inputs and Methodology CMWD relies primarily on SDCWA to evaluate regional supply and demand and potential water shortage levels. CMWD’s supply and demand evaluation criteria are applied as minor adjustments to account for latest information on CMWD-owned supplies or unpredicted changes in CMWD demand. As such, CMWD will evaluate CMWD-owned supply storage levels, changes in recycled water availability, and recent water demand trends. May 12, 2026 Item #10 Page 122 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-6 8.3 Six Standard Water Shortage Stages and Shortage Response Actions The Drought Ordinance outlines CMWD’s six drought response stages, as shown in Table 8-2. These stages, and their prohibitions, are described below. Each level builds on the previous level(s), placing additional restrictions on water use. Shortage levels are consistent with regional and statewide levels and convey the relative severity of water supply shortage conditions. TABLE 8-2: WATER SHORTAGE CONTINGENCY PLAN LEVELS DWR Table 8-1 Retail: Water Shortage Contingency Plan Levels Standard Shortage Level Percent Shortage Range1 Water Shortage Condition 1 Up to 10% Drought Watch Condition - Reasonable probability that supplies will not meet demands 2 Up to 20% Drought Alert Condition - Supplies will not be able to meet expected demands 3 Up to 30% Drought Critical Condition - Supplies not meeting current demands 4 Up to 40% Drought Critical Condition - Supplies not meeting current demands 5 Up to 50% Drought Emergency Condition - Major failure of a supply, shortage, or distribution system 6 >50% Drought Emergency Condition - Major failure of a supply, shortage, or distribution system 1 One stage in the Water Shortage Contingency Plan must address a water shortage of 50%. Notes: A water shortage above 50% triggers Level 6 restrictions, which include prohibition on outdoor water uses, and provides CMWD the authority to make further restrictions, as necessary, for non-compliant users, as well as for any CMWD customer should water supplies require. Drought Response Level 1 – Drought Watch A Level 1 Drought Watch condition may apply when SDCWA notifies its member agencies that a demand reduction of up to 10% is required to allow for adequate supplies to meet demands. CMWD’s Executive Manager shall declare the existence of Level 1 conditions, and Level 1 conservation practices shall be implemented. May 12, 2026 Item #10 Page 123 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-7 Drought Response Level 2 – Drought Alert A Level 2 Drought Alert condition may apply when SDCWA notifies its member agencies that a demand reduction of up to 20% is required due to drought conditions or other reduction in supplies. The CMWD Board of Directors shall declare a Level 2 condition, at which point all water conservation measures under Level 1 must be adhered to, with the addition of Level 2 water use restrictions. Drought Response Level 3 – Drought Critical A Level 3 Drought Critical condition may apply when SDCWA notifies its member agencies that demand reductions of up to 40% are required due to drought or other reduction in supplies in order to have sufficient supplies for anticipated demands. The CMWD Board of Directors shall declare a Level 3 condition, requiring the continuation of conservation measures under Level 1 and Level 2, and the implementation of Level 3 water use restrictions. Drought Response Level 4 – Drought Critical A Level 4 Drought Critical condition may apply when SDCWA declares a water shortage emergency and notifies its member agencies that demand reductions of more than 40% are required in order to maintain sufficient supplies for anticipated demands. The CMWD Board of Directors shall declare a Level 4 Drought Emergency in the manner and on the grounds provided in the California Water Code §350. With the declaration of a Level 4 drought response, all water conservation measures under Levels 1, 2, and 3 must be adhered to, with the addition of Level 4 mandatory conservation measures. Drought Response Level 5 – Drought Emergency A Level 5 Drought Emergency condition may apply when SDCWA declares a water shortage emergency and notifies its member agencies that demand reductions of approximately 50% are required to maintain sufficient water supplies for anticipated demands. The CMWD Board of Directors shall declare a Level 5 Drought Emergency in the manner and on the grounds provided in California Water Code §350. Upon declaration of a Level 5 drought response, all water conservation measures required under Levels 1, 2, 3, and 4 shall remain in effect, along with additional mandatory conservation measures necessary to achieve the required demand reductions. May 12, 2026 Item #10 Page 124 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-8 Drought Response Level 6 – Drought Emergency A Level 6 Drought Emergency condition may apply when SDCWA declares a severe or emergency water shortage and determines that demand reductions greater than 50% are required due to critical supply constraints. The CMWD Board of Directors shall declare a Level 6 Drought Emergency in accordance with California Water Code §350. With the declaration of a Level 6 drought response, all water conservation measures from Levels 1 through 5 shall continue, together with the most stringent mandatory conservation actions to protect public health and safety and preserve essential water supplies. In addition to implementing mandatory water use restrictions and prohibitions during shortage conditions, CMWD employs a range of supply and demand strategies to ensure adequate water is available to meet essential needs. At higher shortage levels, CMWD may activate supplemental supply options to help close any remaining gap between projected demands and available resources. These actions, such as drawing on stored emergency supplies or securing transfers from regional partners, provide important operational flexibility during more severe stages of a shortage. The specific supply-side measures CMWD may utilize are summarized in Table 8-3. On the demand side, CMWD applies a tiered set of conservation and efficiency actions designed to progressively reduce water use as shortage levels increase. These measures range from ongoing water-waste prohibitions and public outreach efforts to more restrictive limits on irrigation, leak repair requirements, commercial best practices, and broad prohibitions on most outdoor potable water use at the highest shortage levels. The full suite of demand reduction measures is presented in Table 8-4. TABLE 8-3: SUPPLY AUGMENTATION AND OTHER ACTIONS DWR Table 8-2: Supply Augmentation and Other Actions Shortage Level Supply Augmentation Methods and Other Actions by Water Supplier Shortage Gap Reduction Value Additional Explanation or Reference 5 Stored Emergency Supply 9% Maerkle Reservoir holds a maximum 600AF. 6 Transfers 10% City of Oceanside, Vallecitos Water District, and SDCWA would be a potential source. May 12, 2026 Item #10 Page 125 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 8 : Wa t e r S h o r t a g e C o n t i n g e n c y P l a n 8- 9 TA B L E 8- 4 : DE M A N D R E D U C T I O N A C T I O N S DW R T a b l e 8 -3: D e m a n d R e d u c t i o n A c t i o n s Sh o r t a g e Le v e l De m a n d R e d u c t i o n A c t i o n s Sh o r t a g e G a p Re d u c t i o n V a l u e Ad d i t i o n a l E x p l a n a t i o n o r R e f e r e n c e Pe n a l t y , C h a r g e , o r En f o r c e m e n t ? 0 Ot h e r - Pr o h i b i t u s e o f p o t a b l e w a t e r fo r w a s h i n g h a r d s u r f a c e s 0. 8 % No w a s h i n g d o w n p a v e d s u r f a c e s . No 0 La n d s c a p e - Re s t r i c t o r p r o h i b i t r u n o f f fr o m l a n d s c a p e i r r i g a t i o n 0. 1 % No r u n o f f / o v e r s p r a y . No 0 Wa t e r F e a t u r e s - Re s t r i c t w a t e r u s e f o r de c o r a t i v e w a t e r f e a t u r e s , s u c h a s fo u n t a i n s 1. 4 % Re c i r c u l a t i n g f o u n t a i n s o n l y . No 0 CI I - Re s t a u r a n t s m a y o n l y s e r v e w a t e r up o n r e q u e s t 0. 2 % Re s t a u r a n t w a t e r u p o n r e q u e s t . No 0 CI I - Lo d g i n g e s t a b l i s h m e n t m u s t of f e r o p t o u t o f l i n e n s e r v i c e 0. 2 % Ho t e l l a u n d r y u p o n r e q u e s t . No 0 Ot h e r - Pr o h i b i t u s e o f p o t a b l e w a t e r fo r c o n s t r u c t i o n a n d d u s t c o n t r o l 0. 0 % No n -po t a b l e w a t e r f o r c o n s t r u c t i o n p u r p o s e s wh e n a v a i l a b l e . No 1 La n d s c a p e - Li m i t l a n d s c a p e i r r i g a t i o n to s p e c i f i c t i m e s 6. 9 % Ir r i g a t e r e s i d e n t i a l a n d c o m m e r c i a l l a n d s c a p e be f o r e 1 0 a . m . a n d a f t e r 6 p . m . No 1 CI I - Ot h e r C I I r e s t r i c t i o n o r pr o h i b i t i o n 0. 2 % Ir r i g a t e n u r s e r y a n d c o m m e r c i a l g r o w e r ' s pr o d u c t s b e f o r e 1 0 a . m . a n d a f t e r 6 p . m . No 1 Ot h e r - Cu s t o m e r s m u s t r e p a i r l e a k s , br e a k s , a n d m a l f u n c t i o n s i n a t i m e l y ma n n e r 0. 8 % Re p a i r l e a k s w i t h i n 5 d a y s o f n o t i f i c a t i o n . No 1 Ex p a n d P u b l i c I n f o r m a t i o n C a m p a i g n 4. 6 % CM W D i n c r e a s e d p u b l i c e d u c a t i o n a n d ou t r e a c h e f f o r t s t o e m p h a s i z e i n c r e a s e d p u b l i c aw a r e n e s s o f t h e n e e d t o i m p l e m e n t w a t e r co n s e r v a t i o n p r a c t i c e s . No May 12, 2026 Item #10 Page 126 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 8 : Wa t e r S h o r t a g e C o n t i n g e n c y P l a n 8- 10 DW R T a b l e 8 -3: D e m a n d R e d u c t i o n A c t i o n s Sh o r t a g e Le v e l De m a n d R e d u c t i o n A c t i o n s Sh o r t a g e G a p Re d u c t i o n V a l u e Ad d i t i o n a l E x p l a n a t i o n o r R e f e r e n c e Pe n a l t y , C h a r g e , o r En f o r c e m e n t ? 1 Pr o v i d e R e b a t e s f o r L a n d s c a p e Ir r i g a t i o n E f f i c i e n c y 4. 3 % On g o i n g p r o g r a m s . No 2 La n d s c a p e - Li m i t l a n d s c a p e i r r i g a t i o n to s p e c i f i c d a y s 6. 9 % Wa t e r l i m i t e d t o d a y s a s s i g n e d b y C M W D ( 3 da y s / w e e k ) . Ye s 2 La n d s c a p e - Ot h e r l a n d s c a p e re s t r i c t i o n o r p r o h i b i t i o n 3. 1 % Li m i t l a w n w a t e r i n g a n d l a n d s c a p e i r r i g a t i o n t o 10 m i n u t e s u n l e s s u s i n g w a t e r e f f i c i e n t d e v i c e . Ye s 2 La n d s c a p e - Ot h e r l a n d s c a p e re s t r i c t i o n o r p r o h i b i t i o n 1. 1 % Us e s h u t -of f n o z z l e , b u c k e t , o r l o w -fl o w s p r a y fo r i r r i g a t i n g a r e a s n o t i r r i g a t e d b y i r r i g a t i o n sy s t e m . Ye s 2 Ot h e r - Cu s t o m e r s m u s t r e p a i r l e a k s , br e a k s , a n d m a l f u n c t i o n s i n a t i m e l y ma n n e r 0. 8 % Re p a i r w i t h i n 7 2 h o u r s o f n o t i f i c a t i o n . Ye s 3 La n d s c a p e - Li m i t l a n d s c a p e i r r i g a t i o n to s p e c i f i c d a y s 6. 6 % Wa t e r l i m i t e d t o d a y s a s s i g n e d b y C M W D ( 2 da y s / w e e k ) . Ye s 3 Ot h e r - Pr o h i b i t v e h i c l e w a s h i n g ex c e p t a t f a c i l i t i e s u s i n g r e c y c l e d o r re c i r c u l a t i n g w a t e r 0. 6 % No v e h i c l e w a s h i n g e x c e p t a t f a c i l i t i e s t h a t re c i r c u l a t e w a t e r o r u s e h i g h p r e s s u r e / l o w vo l u m e . Ye s 3 Ot h e r 1. 7 % Su s p e n s i o n o f c o n s i d e r a t i o n o f a n n e x a t i o n s t o CM W D s e r v i c e a r e a . V a r i a b l e t o m e e t co n s e r v a t i o n n e e d . Ye s 3 Ot h e r 1% Es t a b l i s h a w a t e r a l l o c a t i o n f o r p r o p e r t y s e r v e d by C M W D Fl e x i b l e d e p e n d i n g o n o t h e r a c t i o n s ; ad j u s t t o m e e t 3 0 % r e d u c t i o n . V a r i a b l e t o m e e t co n s e r v a t i o n n e e d . Ye s 3 Ot h e r - Cu s t o m e r s m u s t r e p a i r l e a k s , br e a k s , a n d m a l f u n c t i o n s i n a t i m e l y ma n n e r 1. 7 % Re p a i r w i t h i n 4 8 h o u r s o f n o t i f i c a t i o n . Ye s May 12, 2026 Item #10 Page 127 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t 20 2 5 U r b a n W a t e r M a n a g e m e n t P l a n Ma y 20 2 6 Ch a p t e r 8 : Wa t e r S h o r t a g e C o n t i n g e n c y P l a n 8- 11 DW R T a b l e 8 -3: D e m a n d R e d u c t i o n A c t i o n s Sh o r t a g e Le v e l De m a n d R e d u c t i o n A c t i o n s Sh o r t a g e G a p Re d u c t i o n V a l u e Ad d i t i o n a l E x p l a n a t i o n o r R e f e r e n c e Pe n a l t y , C h a r g e , o r En f o r c e m e n t ? 4 Wa t e r F e a t u r e s - Re s t r i c t w a t e r u s e f o r de c o r a t i v e w a t e r f e a t u r e s , s u c h a s fo u n t a i n s 2. 6 % St o p f i l i n g o r r e -fi l l i n g o r n a m e n t a l l a k e s o r po n d s , e x c e p t t o t h e e x t e n t n e e d e d t o s u s t a i n aq u a t i c l i f e . Ye s 5 La n d s c a p e - Pr o h i b i t c e r t a i n t y p e s o f la n d s c a p e i r r i g a t i o n 15 . 9 % No l a n d s c a p e i r r i g a t i o n u n l e s s r e c y c l e d w a t e r ma y b e l a w f u l l y a p p l i e d , w i t h e x c e p t i o n s f o r tr e e s & s h r u b s u s i n g l o w -vo l u m e i r r i g a t i o n ; sp e c i f i c n e c e s s a r y l a n d s c a p i n g . Ye s 5 Mo r a t o r i u m o r N e t Z e r o D e m a n d In c r e a s e o n N e w C o n n e c t i o n s 2. 9 % No n e w p o t a b l e w a t e r s e r v i c e s h a l l b e pr o v i d e d , n o n e w t e m p o r a r y m e t e r s o r pe r m a n e n t m e t e r s s h a l l b e p r o v i d e d , a n d n o st a t e m e n t s o f i m m e d i a t e a b i l i t y t o s e r v e o r pr o v i d e p o t a b l e w a t e r s e r v i c e s h a l l b e i s s u e d , wi t h t h e e x c e p t i o n o f t h e c i r c u m s t a n c e s l i s t e d in t h e D r o u g h t O r d i n a n c e . Ye s 5 Ot h e r - Cu s t o m e r s m u s t r e p a i r l e a k s , br e a k s , a n d m a l f u n c t i o n s i n a t i m e l y ma n n e r 3. 4 % Re p a i r w i t h i n 2 4 h o u r s o f n o t i f i c a t i o n . Ye s 6 La n d s c a p e - Pr o h i b i t a l l l a n d s c a p e ir r i g a t i o n 16 .4 % No l a n d s c a p e i r r i g a t i o n u n l e s s r e c y c l e d w a t e r ma y b e l a w f u l l y a p p l i e d , w i t h e x c e p t i o n s f o r sp e c i f i c n e c e s s a r y l a n d s c a p i n g . Ye s May 12, 2026 Item #10 Page 128 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-12 8.4 Catastrophic Supply Interruption CMWD’s supplies are at risk for a catastrophic interruption because of its reliance on imported water to meet potable demands. While CMWD and SDCWA are both striving to reduce this dependence on imported water (through development of local supplies and increased recycled water use), the risk still exists that supplies will be interrupted in the event of a natural or man-made disaster. Potential catastrophes to which CMWD’s supplies may be vulnerable include, but may not be limited to: • Earthquake • Fire/explosion • Flood • Tornado/severe weather • Bomb threat • Hard freeze • Loss of normal water supply • Hazardous material release • Contamination of SDCWA or CMWD water supplies • Terrorist attack CMWD has taken several actions to prepare for, and implement, during a catastrophic interruption of water supplies. In the event of a supply interruption, CMWD’s defined command chain dispatches crews to inspect infrastructure and critical operations. Operations response crews are assigned to monitor system operations and modify operations as necessary, depending on the status of the system, the disaster, and needs. The defined communication command chain coordinates with other local water agencies and emergency response officials as necessary. Criteria and procedures are provided to return system to normal operations, including initiating water quality testing when necessary and performing necessary emergency repairs to the system. The emergency operations plan contains contact information for responsible parties and support services. Water shortage contingency plan stages will be implemented as required by the situation. 8.4.1 Seismic Risk Assessment and Mitigation Plan CWC 10632.5 requires urban water suppliers to include a seismic risk assessment and mitigation plan to assess the vulnerability of each of the supplier’s various facilities of the water system and mitigate those vulnerabilities. An urban water supplier may also comply with this requirement by submitting a copy of the most recently adopted multi-hazard mitigation plan under the federal Disaster Mitigation Act of 2000 if the multi-hazard May 12, 2026 Item #10 Page 129 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-13 mitigation plan addresses seismic risk. The City of Carlsbad assessed seismic risk in its 2023 Hazard Mitigation Plan as part of the County of San Diego’s Hazard Mitigation Plan submitted to the State of California Office of Emergency Services. The goal of the 2023 Hazard Mitigation Plan is to “reduce the possibility of damage and losses to existing assets, including people, critical facilities/infrastructure, and public facilities due to earthquakes.” Some of the action items for implementation included: • Periodic updates to local building codes, public works construction codes, and zoning and grading ordinances • Protect existing assets with the highest relative vulnerability to the effects of earthquakes • Support existing efforts to mitigate earthquake hazards • Support community outreach efforts related to hazard mitigation • Support and maintain a comprehensive approach to reduce the possibility of damage and losses due to earthquakes The Carlsbad Emergency Management Administrative Team has on-going funding to develop public awareness regarding hazard mitigation strategies and continue to develop and implement action items to meet the City’s earthquake goal. Appendix I includes the 2023 Hazard Mitigation Plan. 8.4.2 CMWD Emergency Storage of Water Policy In addition, CMWD is included in SDCWA’s regional emergency storage plan (ESP), which plans and provides for regional supplies during a two-month and six-month emergency event. The regional emergency water supply reservoirs include Olivenhain with 18,000 AF of ESP capacity, Lake Hodges with 20,000 AF, and San Vicente with 52,100 AF. Actual amounts of ESP water to be delivered to each member agency are to be determined based on the specific emergency event. ESP supplies will depend on member agency demand, local supplies, infrastructure, availability of supplies, and duration of the emergency event. SDCWA’s ESP is expected to provide a total of 90,100 AF of stored water which can potentially help meet regional water demands through 2050 (SDCWA 2026). In addition, according to the City of Carlsbad emergency action plan, CMWD’s local storage surplus is expected to be 5.49 MG in the distribution system which does not include the 195 MG Maerkle Reservoir. CMWD operates potable and recycled water storage for the purposes of regular operations, in addition to flexibility and planning for specific area outages or system wide outage. Overall, CMWD has sufficient storage to May 12, 2026 Item #10 Page 130 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-14 meet operational and short-term emergency demand requirements under 2050 projected conditions. 8.5 Communication Protocols CMWD’s communication protocol includes the various channels it will utilize to convey critical messages regarding water shortage allocations and voluntary and mandatory actions. A strong communication plan will educate CMWD ratepayers, local leaders and the business community, on the water supply situation; what actions are proposed; what the intended achievements are; and how these actions are to be implemented. While specific types of messaging are deployed at various shortage response levels, how these messages are conveyed to the public are described per this communication protocol. The communication protocol will be in place prior to a water supply shortage and be initiated in Shortage Level 1. Activation of the communication protocol will continue through all subsequent water shortage levels. At times, specific communities may require specialized outreach. CMWD will ensure outreach efforts are reaching key audiences as needed. Per SDCWA’s 2025 WSCP, it is important to communicate to ratepayers the following when urgent conservation is needed: •Specific actions needed to save water; •How much water needs to be saved and for how long; •Why water needs to be saved; and •What CMWD is doing to correct the supply problem or address the situation. 8.5.1 Coordination In order to communicate effectively, avoid confusion, and maintain credibility, CMWD will work in close coordination with SDCWA at various levels of management. These levels include the Joint Public Information Council/Conservation Coordinators (JPIC; staff level), the Member Agency Managers group (management level), and SDCWA Board’s Legislation and Public Outreach Committee (Board level). During droughts or other times of limited supply, the frequency and extent of coordination will increase to ensure outreach tactics are consistent with the changing needs of CMWD and its ratepayers. CMWD will seek opportunities to leverage external resources to complement its own outreach. May 12, 2026 Item #10 Page 131 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-15 8.5.2 Communication Objectives Communication objectives during the various water shortage levels of the WSCP include the following: • Motivate water users to quickly increase conservation in ways that are consistent with any voluntary or mandatory actions called for at the current level of the WSCP. • Raise awareness and understanding of the drought, regulatory, or other condition affecting water supplies and the need for increased conservation. • Minimize confusion and maintain credibility of water agencies and conservation messages with an appropriate tone that carefully describes the current water shortage scenario. • Make water users feel appreciated for existing accomplishments in improving their water-use efficiency, and for supporting regional and local investments in water supply reliability. • Educate regional civic and business leaders, elected officials and the public about how CMWD has greatly improved its water supply reliability. • Prepare CMWD for any potential escalation (or de-escalation) of the WSCP based on trending supply conditions. • Ensure all stakeholders believe they are being treated fairly in relationship to other stakeholders. • Maintain communication effectiveness by soliciting or monitoring feedback from member agencies, key stakeholders, and the public to update or adapt messages or communication tools. • Exit WSCP implementation having demonstrated the effectiveness and value of conservation actions and water supply reliability investments in minimizing impacts to the City of Carlsbad’s economy and quality of life. 8.5.3 Communication Protocol for Current Predicted Shortage A current or predicted shortage, as determined by the Annual Assessment, will be communicated to the public upon submittal of the Annual Assessment Report to the Board of Directors in June of any given year. Communication by Water Shortage Level is outlined in CMWD Water Code Title 3 and is described in the following subsections. May 12, 2026 Item #10 Page 132 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-16 Drought Response Level 1 (Drought Watch) The existence of a Drought Watch condition may be declared by the Executive Manager upon a written determination of the existence of the facts and circumstances supporting the determination. A copy of the written determination shall be filed with the Secretary of the CMWD and provided to the CMWD Board of Directors. CMWD may publish a notice of the determination of existence of Drought Response Level 1 condition in one or more newspapers, including a newspaper of general circulation within the CMWD service area. CMWD may also post notice of the condition on its website. Drought Response Level 2 (Drought Alert), 3 (Drought Critical), or 4 (Drought Critical) The existence of Drought Response Level 2 or Level 3 conditions may be declared by resolution of the CMWD Board of Directors adopted at a regular or special public meeting held in accordance with State law. The mandatory conservation measures applicable to Drought Response Level 2 or Level 3 conditions shall take effect on the tenth (10) day after the date the response level is declared. Within five (5) days following the declaration of the response level, CMWD shall publish a copy of the resolution in a newspaper used for publication of official notices. Drought Response Level 5 (Drought Emergency) or 6 (Drought Emergency) The existence of a Drought Response Level 5 or 6 condition may be declared in accordance with the procedures specified in California Water Code sections 351 and 352. The mandatory conservation measures applicable to Drought Response Level 5 or 6 conditions shall take effect on the tenth (10) day after the date the response level is declared. Within five (5) days following the declaration of the response level, CMWD shall publish a copy of the resolution in a newspaper used for publication of official notices. If CMWD establishes a water allocation, it shall provide notice of the allocation by including it in the regular billing statement for the fee or charge or by any other mailing to the address to which CMWD customarily mails the billing statement for fees or charges for on-going water service. Water allocation shall be effective on the fifth (5) day following the date of mailing or at such later date as specified in the notice. The CMWD Board of Directors may declare an end to a Drought Response Level by the adoption of a resolution at any regular or special meeting held in accordance with State law. May 12, 2026 Item #10 Page 133 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-17 8.5.4 Communication Protocol for Triggered or Anticipated to be Triggered Shortage Response Action The public will be notified about triggered or anticipated to be triggered shortage response actions. The implementation of shortage response actions associated with any water shortage level will take effect on the tenth day after the date the shortage response action is declared. Within five days following the declaration of the shortage response action, the Executive Manager will publish a notice giving the extent, terms, and conditions around the use and consumption of water a minimum of one time for three consecutive days in the City of Carlsbad’s official newspaper. 8.5.5 Catastrophic Communications In the event of a catastrophic supply interruption that requires water use to be quickly prioritized for or limited to essential public health and safety needs, CMWD will immediately deploy appropriate strategies from Drought Response Levels 1 through 6. In addition, outreach messaging will reflect emergency conditions and the need to focus on health and public safety. CMWD may also consider potential joint news release/new events with public health officials or incident commanders to announce conditions and explain needed action. Finally, CMWD will ensure ongoing coordination with emergency response services with daily advisories or alerts as needed. 8.6 Compliance and Enforcement When mandatory restrictions are in place, CMWD implements penalties for violations of the restrictions or prohibitions described above, as proscribed by CMWD Water Code Title 3. Each day that a violation occurs is considered a separate offense and administrative fines may be levied for each violation. For the first violation, CMWD will verbally notice the fact of the violation. For the second violation, CMWD will provide a written notice to the customer of the violation. For the third violation, CMWD may install a flow restricting device of one gallon per minute capacity for services of up to one and one-half inch size and comparatively sized restrictions for larger services upon a prior determination of multiple violations. Additionally, an administrative fine of $100 may be issued for the third violation. For a fourth violation within a one-year period, CMWD may issue a $200 administrative fine. Additional violations exceeding the fourth violation within a one-year period may result in a $500 administrative fine. Table 8-5 indicates the penalties for violation and at what stage they take effect. May 12, 2026 Item #10 Page 134 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-18 TABLE 8-5: CMWD PENALTIES FOR USE RESTRICTION VIOLATIONS Penalty Stage Trigger Warning letter All stages First Violation Notice of violation All stages Second Violation Flow restriction installed All stages Third Violation Administrative citations All stages Third Violation ($100) Fourth Violation ($200) Fifth or More Violation ($500) In lieu of administrative penalties as described above, when deemed appropriate and necessary, each violation may be prosecuted as a misdemeanor punishable by imprisonment for no more than thirty days or by a fine not to exceed $1,000, or by both. All customers who incur a penalty due to violation of the Drought Ordinance in CMWD Water Code Title 3 have the right to appeal the penalty. 8.7 WSCP Revenue and Expenditure Impacts In the event of a water emergency, the Drought Response would be activated to respond to the level of shortage. At that time, drought response stage actions would go into effect, and CMWD’s revenue is anticipated to decrease due to reduced water sales. The amount of decreased revenue would depend upon the response stage, and how long each stage is in effect. If revenues are less than required to meet CMWD’s financial obligations because of a water shortage, CMWD would draw from its operating reserves and then propose increasing water rates to appropriate levels for the Board’s consideration. The operating reserves are maintained at adequate levels to provide short-term operating capital in case of emergencies as well as provide for rate stabilization. Table 8-6 and Table 8-7 present how different actions and conditions impact revenues and expenditures, as well as provide a summary of potential actions that could be taken to address these impacts. May 12, 2026 Item #10 Page 135 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-19 TABLE 8-6: IMPACTS TO REVENUES AND METHODS TO ADDRESS IMPACT Potential Impacts to Revenues Action Anticipated Revenue Impact Rate adjustment No impact. This would be an administrative function to analyze rate structure options to offset potential losses in revenue associated with reduced sales. Change in quantity of sales Reduction in revenue expenses and associated reduction in quantity charge-based revenues generated to cover local O&M costs. Could be offset by a combination of budget reductions, expense deferrals, including some non-critical CIP projects, draws on rate stabilization and operating reserves, and rate adjustments. Potential Solutions for Revenue Decreases Action Anticipated Effects Reserve Fund This option would have no short-term impact on the rate payers or CMWD because there are currently sufficient funds in CMWD’s operating reserves. Change rate structure Minimal changes in rates could offset significant reductions in available water supplies. Reduce overhead Overhead, or local fixed O&M costs, can be reduced in the short and mid-term by deferring selected cash-funded CIP and major maintenance projects, other expenditure reductions and if needed, hiring freezes. Decrease capital expenditures Deferral of selected, non-critical replacement projects will have little or no impact on CMWD or its customers and would only extend the duration of the master planned replacement schedule. Infrastructure for new development is funded by new development and progresses at the rate needed by new development projects. Revise planning estimates If supply reduction were long-term, CMWD would make commensurate adjustments to its CIP schedule, staffing levels and retail rate structures based upon lower retail sales. Impacts would be moderate and implemented over time. May 12, 2026 Item #10 Page 136 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-20 TABLE 8-7: IMPACTS TO EXPENDITURES AND METHODS TO ADDRESS IMPACTS Potential Impacts to Expenditures Actions Potential Impacts Change in quantity of sales Sales reductions could be offset with rate and budget adjustments and moderate CIP deferrals. Increased staff/salaries/overtime No impacts. Existing staff would be re-assigned to perform functions required to implement and enforce consumption reduction methods and requirements. Increased costs of new supplies, transfers or exchanges SDCWA would secure new supplies whose cost would be melded into overall costs. Increased costs of wholesale water would be passed through to CMWD’s customers via rate increases and/or changes to the rate structure. Potential Solutions for Expenditure Impacts Action Anticipated Effects Reserve Fund No impacts. The Replacement Fund is sufficient and exists for the very purposes anticipated in a supply shortage scenario. Change rate structure Given the mix of wholesale water and power expenditures, non-commodity revenues needed to cover local fixed costs, availability of reserves and the flexibility to adjust CIP expenditures, no short-term (1 to 2 year) impacts are anticipated, mid-term (3 years) impacts would be moderate, and long-term (beyond 3 years) impacts would be moderate and incremental. Reduce overhead In the short-term and mid-term, overhead or local costs can be reduced by deferring non-critical CIP and major maintenance expenditures. In the long-term, costs can be reduced by adjusting operational and staffing levels and retail water rate structures to incorporate the reality of lower retail water sales than previously anticipated. Decrease capital expenditures In the short-term, there could be a decrease in the level of expenditures for CMWD’s replacement program, or an interruption of expenditures. In the mid- to long-term, the retail rate structure and the prioritization schedule would be adjusted to ensure that projects critical to service and system reliability were implemented. Revise planning estimates If the reduced supply is determined to be a long-term condition, then commensurate adjustments would be incorporated into long-term staffing and water system facility requirements. 8.8 WSCP Monitoring and Reporting Because all water received from SDCWA is metered and monitored, and all CMWD customers are metered and billed monthly using computerized equipment, data are collected on an on-going basis that can allow CMWD to determine actual water use reductions. Each customer or customer group can be evaluated for compliance with May 12, 2026 Item #10 Page 137 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-21 conservation requirements. Methods used by CMWD to determine actual reductions in water use are summarized in Table 8-8. TABLE 8-8: METHODS FOR MEASURING WATER USE REDUCTIONS Method for Determining Actual Reduction Type and Quality of Data Expected Use normalized or average water use baseline to determine reductions Each customer will be given a schedule of monthly use targets based upon the required reduction compared to the base period usage. Usage over the amount allocated for any given month will result in the customer incurring penalty pricing for usage that month. Usage under that amount will be accumulated to possible offset over-usage in successive month period. More frequent review of production Water production is currently monitored on a real-time basis through CMWD’s SCADA system and reviewed on a daily basis. More frequent meter reading at customer locations Customer meters are read monthly which would coincide with the monthly allocation periods. Customers are given information on how to read their meter and monitor their own usage. More frequent leak detection and repair Leak detection and repair is currently an active and ongoing O&M function, so no major changes would be expected. System audit The water system is currently audited on a monthly and annual basis, comparing metered deliveries from the SDCWA to metered deliveries to retail customers. Automated sensors and telemetry CMWD has a SCADA system, which contains features to provide real-time monitoring and alarms communications to on-call operators to identify abnormalities in reservoir fill rates, draw-down rates, and pump function, which can be associated with system leaks and other malfunctions that could result in water loss. Monitor utility actions All CMWD actions are monitored and reported in a comprehensive Activities Report provided to the Board of Directors on an annual basis. Other types of staff reports on CMWD activities are given at the two regular Board Meetings each month or on as needed basis by the Executive Manager. Penalties for customers If and when penalty pricing is implemented, the amount and frequency of penalties would be monitored by the City of Carlsbad’s computerized billing system and then reported to the management staff and to the Board of Directors on a monthly basis. May 12, 2026 Item #10 Page 138 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-22 8.9 WSCP Refinement Procedures CMWD will regularly review and update its WSCP to ensure that it remains aligned with evolving state requirements, regional supply conditions, and operational needs. Consistent with California Water Code Sections 10632 and 10621(a)(4), water suppliers are required to maintain an up-to-date WSCP and refine it as conditions change or new information becomes available. CMWD will initiate WSCP refinements under the following circumstances: •Changes in regulatory requirements, including updates to the Water Code, DWRguidance, or statewide conservation mandates. •Changes in supply reliability, such as updates from the San Diego County WaterAuthority, drought conditions, or emergency events. •Post-implementation evaluation following activation of one or more shortagestages, where staff analyze the effectiveness of demand reduction measures,enforcement actions, and communication strategies. •Integration of new infrastructure or operational capabilities, such as SCADA systemupgrades, recycled water system expansions, or supply reliability enhancementswithin the City of Carlsbad’s water system. •Lessons learned from regional coordination, including joint actions with SDCWAand neighboring water agencies. Refinement activities may include updating shortage stage triggers, modifying demand reduction measures, refining communication protocols, adjusting estimated savings from shortage response actions, and incorporating updated supply and demand projections. As required by state law, substantial WSCP revisions will be presented to the CMWD Board of Directors for adoption at a publicly noticed meeting. Once adopted, the updated WSCP will be submitted to DWR through the WUEdata portal and posted on CMWD’s website to ensure transparency and public accessibility. CMWD may revise its WSCP independently of the UWMP update cycle, allowing CMWD to respond rapidly to changing conditions. 8.10 Special Water Feature Distinction The WSCP distinguishes non-recreational water features, such as ornamental fountains, artificial ponds, lakes, and waterfalls, from swimming pools and spas, which have separate health and safety requirements. Under Water Shortage Level 2, operation of decorative water features is prohibited unless they utilize recirculated water. At Water Shortage Level May 12, 2026 Item #10 Page 139 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 8: Water Shortage Contingency Plan 8-23 4, refilling of lakes or ponds is halted except as necessary to sustain aquatic life, provided that such animals are of significant value and have been actively managed within the water feature prior to the declaration of a drought response level. Because non-pool water features may be designed to use recycled water, while pools and spas must rely on potable water, the WSCP applies different response actions, enforcement mechanisms, and monitoring approaches to each category. 8.11 Determination of Reliability CMWD’s analysis indicates that, with continued reliance on SDCWA’s diversified supply sources, CMWD is anticipated to have sufficient water supply to meet projected demands under normal, single-dry, and multiple-dry year conditions throughout the 20-year planning period. CMWD’s water supply reliability is further supported by local operational measures, including system interconnections, storage capacity, demand management programs, expansion of recycled water use, and ongoing participation in regional drought-response initiatives. In the event of supply reductions or emergency shortages, the WSCP provides a structured and adaptive framework for managing demand, maximizing available supplies, and maintaining essential service levels. SDCWA’s regional supply reliability and CMWD’s local planning efforts combined ensure that CMWD remains well-positioned to provide safe and reliable water service to its customers under a wide range of future conditions. May 12, 2026 Item #10 Page 140 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-1 9. DEMAND MANAGEMENT MEASURES This section describes the past and current demand management measures (DMMs) undertaken by CMWD and quantifies, to the extent feasible, DMM efforts from 2021 through 2025. 9.1 Current Demand Management Measures CMWD currently implements a variety of DMMs to manage customer demands. Together, these DMMs have contributed to CMWD’s success in reaching its SB X7-7 Targets (refer to Section 5 SB X7-7 Targets and Reporting), have contributed to a more conservation-literate population, and positioned CMWD to align with new water use objectives.1 9.1.1 Water Waste Prevention Ordinances Title 3 of the CMWD Water Code includes the requirements from the two primary ordinances in place to prohibit water waste and encourage water use efficiency within its service area (Ordinance No. 44 – Drought Response Plan and Water Conservation Program and Ordinance No. 46 – Watering Schedules), which were both adopted in 2009. On June 7, 2022, CMWD adopted Ordinance No. 48, which amended Ordinance No. 44 and No. 46 to better align its regulatory framework with changes at the regional and state level around drought and conservation. CMWD Water Code Title 3, Chapter 3.12 (previously Ordinance No. 48) mirrors SDCWA’s 2020 Model Drought Ordinance and establishes a six-level Water Shortage Contingency framework, consistent with WSCP guidance from DWR (Table 9-1). CMWD Water Code Title 3, Chapter 3.12 provides CMWD with the authority to declare water shortage levels based on regional supply conditions and to implement progressively stringent water conservation measures as shortages intensify. CMWD Water Code Title 3, Chapter 3.12 includes both permanent water-waste prohibitions and mandatory demand reduction actions tied to each shortage level, ensuring a structured and enforceable response to drought conditions. The ordinance modernizes and expands CMWD’s previous drought provisions by incorporating updated statewide requirements, improving consistency with the WSCP, and ensuring that CMWD can respond effectively to shortages of varying severity. 1 In 2018, California SB 606 and AB 1668 were enacted and expand authority to implement a water budget-based approach to conservation and water use efficiency. CMWD’s urban water use objective is based on calculated water budgets for residential indoor, residential outdoor, and commercial/industrial/institutional landscape use, as well as a variance for Carlsbad’s sizeable seasonal tourism population. In its most recent Urban Water Use Objective and Water Use Report, completed December 2025 for Fiscal Year 2024-2025, CMWD’s reported water use was lower than its urban water use objective. May 12, 2026 Item #10 Page 141 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-2 For more details, refer to Section 8 Water Shortage Contingency Planning and Appendix I. CMWD maintains up-to-date information on current water use restrictions through the Water Rules page on its website: (www.carlsbadca.gov/departments/utilities/water/water-conservation/water-rules). TABLE 9-1: DROUGHT RESPONSE LEVELS Drought Response/ WSCP Levels Use Restrictions Conservation Target Level 1-Drought Watch Voluntary Up to 10% Level 2-Drought Alert Mandatory Up to 20% Level 3-Drought Critical Mandatory Up to 30% Level 4-Drought Critical Mandatory Up to 40% Level 5-Drought Emergency Mandatory Up to 50% Level 6-Drought Emergency Mandatory Above 50% 9.1.2 Metering All of CMWD’s water connections are metered and billed according to water consumed. Some mixed-use meters where irrigation and domestic use were metered through one service connection meter in CMWD’s service area have been converted such that those properties’ irrigation systems use recycled water from the Phase III Recycled Water Project. CMWD has a water meter replacement and calibration plan in place to ensure that meters are performing correctly, and all water consumed is being recorded. In general, CMWD replaces meters under 1-inch every 20 years and meters over 1-inch every 15 years. In 2012, CMWD began replacing traditional water meters with “smart meters” that enabled collection of water usage information to be automated. CMWD completed the final stage of its Advanced Metering Infrastructure (AMI) project in 2017. 9.1.3 Conservation Pricing CMWD has and will continue to use a combination of uniform and increasing block or tiered rate conservation rate structures for potable water served. Single family and multi-family residential customer classes are billed in increasing block structures where the water rate increases for additional water units consumed. Since the 2020 UWMP was adopted, CMWD has updated its water rate structure to strengthen conservation incentives and reflect increasing water supply costs. While residential customers continue to be charged lower rates for essential water use (i.e., Tier 1) and higher rates for greater consumption (i.e., Tier 2), the price differential between lower-use and higher-use tiers has increased. Table 9-2 shows the approved residential customer billing rates for 2026. May 12, 2026 Item #10 Page 142 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-3 TABLE 9-2: 2026 RESIDENTIAL CUSTOMER BILLING RATES FOR POTABLE WATER Tier Block Structure Cost per Unit1 Single Family and Master-Metered2 Tier 1 0 – 10 units $5.60/unit Tier 2 Over 10 units $5.97/unit Multiple Family2 Tier 1 0 – 5 units $5.59/unit Tier 2 Over 5 units $5.80/unit 1 One water unit is 100 cubic feet or 748 gallons 2 Tiers are based on water use per dwelling unit, as measured in units of water consumed Commercial, agricultural, and irrigation customer classes are billed using uniform rate structures where a flat rate is billed for every unit consumed. One unit is equal to a hundred cubic feet, or 748 gallons. Table 9-3 shows the approved 2026 billing rates for commercial customers. Recycled water is billed by combining a monthly delivery charge based on water meter size with a usage charge of $4.63 in 2026. TABLE 9-3: 2026 COMMERCIAL CUSTOMER BILLING RATES FOR POTABLE WATER Tier Cost per Unit1 Agricultural rate $5.84/unit Irrigation rate $5.88/unit Commercial rate $5.72/unit 1 One water unit is 100 cubic feet or 748 gallons 9.1.4 Public Education and Outreach CMWD implements multiple approaches to public education and outreach on a variety of projects, initiatives, and goals. Through its ongoing commitment to customer service, much of this outreach is conducted through one-one-one interactions with customers in person, via phone and email inquiries. Formal programmatic approaches for outreach, workshops, school education programs, and provision of resources for CMWD customers are primarily through its partnership with the SDCWA as a member agency. Many of CMWD’s efforts are implemented in coordination with other agencies and through regional efforts. In addition, since 2020, CMWD customers removed approximately 244,244 square feet of turf through available rebate programs. Over that same time period, CMWD customers have received a total of 699 residential and 3,475 commercial device rebates. May 12, 2026 Item #10 Page 143 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-4 Outreach Activities To reach a wide range of audiences, CMWD makes brochures and handouts available at various community centers and City of Carlsbad and CMWD offices. CMWD has consistently reached out to customers on at least a quarterly basis using various methods every quarter within the last five years. In coordination with SDCWA, CMWD promotes opportunities for residents to participate in regional programs such as the California–Friendly landscape contest, Speaker Bureaus, and Citizens Water Academy. As a member of the North San Diego Water Reuse Coalition, CMWD participates in outreach efforts educating the public on recycled water and potable reuse safety and use, and the importance of potable water conservation to the region. Workshops In coordination with SDCWA, CMWD provides workshops on water related themes geared to the residential user. Workshop topics presented in the past include California Friendly Landscape Training. Workshops are offered for free and held at different locations throughout the county, including within CMWD’s service area. School Education CMWD offers school education programs for local schools as well as education materials to teachers upon request through SDCWA. The Splash Lab offers assembly presentations available to grades 4 - 8 to educate students on water science. For grades K – 6, students can participate in an assembly that is fact-filled and engages students in water conservation. In addition, there is an annual calendar art contest for fourth graders from schools within CMWD’s service area with an opportunity to win prizes by drawing a water conservation themed picture. Residential Customer Resources In coordination with MWD’s SoCal Water$mart program and SDCWA’s WaterSmart San Diego County program, rebates are available to CMWD customers to promote indoor and outdoor water conservation. One popular program is the turf removal rebate program designed to encourage the replacement of water-thirsty turf for drought tolerant plants. These programs are advertised and linked on CMWD’s water conservation website. Through SDCWA’s turf replacement rebate program, CMWD customers have converted 82,554 square feet of turf to water-wise landscaping between 2020-2024. Table 9-4 provides a list of all rebates available and their associated rebate amounts. May 12, 2026 Item #10 Page 144 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-5 TABLE 9-4: RESIDENTIAL WATER CONSERVATION REBATE Rebate Program Name Rebate Amount Indoor Rebates Clothes washer rebate $85 HE toilets $40 Outdoor Rebates Turf removal rebate $2-$3/sq ft up to 5,000 sq ft Irrigation controllers $80 Irrigation nozzles $2/nozzle - minimum is 30 Rain barrels $35 Soil moisture sensors $35/controller station Commercial Customer Resources In coordination with MWD’s SoCal Water$mart Program and SDCWA’s WaterSmart San Diego County program, CMWD provides information on available rebates for CMWD’s commercial customers that promote water efficiency for businesses. Table 9-5 displays the rebates and their associated amounts available to commercial customers that were available in recent years. May 12, 2026 Item #10 Page 145 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-6 TABLE 9-5: COMMERCIAL WATER CONSERVATION REBATES Rebate Name Rebate Amount Indoor Fixtures HE toilet $40 UL Urinal $200 Zero Water urinal $200 Flow valve restrictions $5/valve (minimum of 10) Outdoor Fixtures Turf removal $2/sq ft up to $5,000 Irrigation controllers $35/controller station Irrigation heads $2/nozzle (minimum of 30) Large rotary nozzles $13/set (minimum of 8) Flow regulators $1/regulator (minimum of 25) Soil moisture sensors $35/station Restaurant Fixtures Connectionless food steamers $485 Air-cooled ice machines $1,000 Commercial/Industrial Cooling tower conductivity controllers $625 Cooling tower pH controllers $1,750 Dry vacuum pump $125/0.5 HP Laminar flow restrictors $10/restrictor (minimum of 10) Large Landscape Water Audits Dedicated Large Landscape customers are offered water audits to provide suggestions on improving water efficiency and to qualify for water conservation rebates through the SDCWA. In the past five years, approximately four water audits have been performed for CMWD customers by an independent contractor. Contractor Incentive Program The WaterSmart Contractor Incentive Program offers several incentivized water-efficient devices that, when installed in combination, are among the irrigation industry’s best management practices. Program requirements, qualifying irrigation devices and rebate amounts are available from SDCWA. May 12, 2026 Item #10 Page 146 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-7 WaterSmart Check-Up Program Through SDCWA, CMWD offers the WaterSmart Check-up Program to top water users each month. During a WaterSmart check-up, a WaterSmart certified irrigation professional visits a property upon request to provide water saving tips and perform a water audit. This audit includes an inventory of water fixtures used indoors and outdoors, replacement of high use water fixtures, evaluating toilets for leaks, and performing a landscape water audit. During the water audit, sprinkler stations are turned on to evaluate inefficiencies and adjustments to watering schedules are made where appropriate. A summary report with additional conservation advertising is left with the customer at the end of the appointment. From 2020-2024, 72 audits were performed. Landscape Education WaterSmart Landscaping in San Diego County is an online plant finder found at www.cawsandiegogardening.com, promoted on the SDCWA landscape website at www.watersmartsd.org/residencial/landscape-resources. This interactive gardening tool has thousands of pictures of plants and garden designs that are well-suited to the southern California climate. It offers visual tours of beautiful, water-efficient landscapes through photographs with links to plant information screens. CMWD Is working with City of Carlsbad Planning on their current review and plan to update its Landscape Manual to reflect changes in water use efficiency regulations over the preceding 5-year UWMP timeframe. WaterSmart Landscape Makeover Program Workshops These workshops offer classes and coaching from professionals that teach the basics on how to do a landscape makeover. Topics include soil, design, turf removal, plant selection, planning, irrigation, rainwater catchment and implementation, which are all the elements needed to convert high-water-use turf to a beautiful, water-efficient landscape. Quality Water Efficient Landscaper (QWEL) On the WaterSmart website, people can register for free local training courses that will result in Quality Water Efficient Landscaper (QWEL) certification. Providing landscape professionals with 20 hours of education on principles of proper plant selection for the local climate, irrigation system design and maintenance, and irrigation system programming and operation. May 12, 2026 Item #10 Page 147 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-8 Agua Hedionda Lagoon foundation (AHLF) Demonstration Garden In the City of Carlsbad, the AHLF hosts the premiere native plant garden in North San Diego County. Visitors can browse through the extensive California Native Plant Garden and accompanying colorful and informative interpretive signage. The landscaping includes 800 native plants featuring over 60 different species for visitors to learn about California's low water use native flora. 9.1.5 Programs to Assess and Manage Distribution System Real Loss CMWD has completed the AWWA Water Loss Audit Software program and has determined that water losses are within the acceptable industry standard range. Water losses have been incorporated into the appropriate tables in Section 4 Water Use. CMWD is proactive in reducing unaccounted for water by ensuring water meters are regularly maintained, evaluated for functionality, and replaced well within industry standards. Reported leaks are investigated and recorded in a tracking database that collects the time of report, leak location, and type of leaking pipe or fitting. Leaks are repaired to the extent that it is cost effective and prioritized based on potential water loss. CMWD also uses the Supervisory Control and Data Acquisition (SCADA) system, a meter replacement program, and AMI with WaterSmart technology to minimize leaks and water waste. These programs help customers conserve water by updating technology and replacing meters to help better monitor leakage. 9.1.6 Water Conservation Program Coordination and Staffing Support CMWD no longer employs a full-time (1 FTE) Water Conservation Specialist and a Supervisor at 25% FTE. An overview of CMWD’s Water Conservation programs can be found at: www.carlsbadca.gov/departments/utilities/water/water-conservation. 9.2 DMM Activity From 2021 through 2025, CMWD continued implementing all required DMMs, maintaining updated operational practices under Ordinances 44 and 48 and ensuring all customer accounts remained fully metered with commodity-based billing. Tiered conservation pricing persisted throughout the period, alongside consistent delivery of water-use surveys and both residential and commercial rebate programs supporting indoor and outdoor efficiency improvements, including turf replacement. School education programs continued each year, with direct field trips offered through 2023 and annual funding allocations maintained thereafter as budget allowed, collectively May 12, 2026 Item #10 Page 148 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 9: Demand Management Measures 9-9 demonstrating CMWD’s ongoing commitment to comprehensive water-use efficiency and conservation. Looking ahead to 2026–2030, CMWD will continue operating under CMWD Water Code Title 3, Chater 3.12 (previously Ordinance No. 48), conduct timely leak repairs with a full system leak survey planned for 2027, and maintain universal metering supported by system-wide advanced metering infrastructure. Tiered rates and school education program funding will continue. 9.3 Future DMM Implementation CMWD will continue to provide information about the available array of educational and rebate programs, as funds are available to sustain the programs. The popularity of SDCWA’s Turf Removal Rebate displays a need and desire for residential customers wanting permanent options to manage outdoor water use. Although all fixtures for indoor conservation that are now available to California customers are water efficient, CMWD still sees the rebate program as a way to continue to encourage additional conservation through high efficiency devices as coordinated through the SDCWA program. As demonstrated in Section 5 SB X7-7 Targets and Reporting, CMWD’s 2020 GPCD was well below its 2020 target. These savings have been achieved in part due to implementation of the DMMs described in this section, and CMWD is committed to continued demand management through ongoing permanent savings (e.g., from landscape conversions), water waste prohibition and waste prevention ordinances, expansion of recycled water service, education and other conservation efforts. As part of the regulatory requirements for establishing and reporting the UWOU, CMWD is mapping its outdoor irrigated landscaped areas. Residential landscape area measurements (LAM) were mapped and quantified by the State in 2021 and values provided to all water suppliers. This landscape measurement is used in calculating CMWD’s budget for residential outdoor irrigation use based on new and progressively more restrictive standards. Water suppliers are also required to map and measure outdoor landscape irrigated by dedicated irrigation meters (DIMs) for commercial, industrial and institutional (CII) customers, by 2028, as well report data in high water for various percentages of water users in this sector. CMWD contracted with the consulting company responsible for creating the Residential LAM data and maps, to map the CII DIMS LAM and also invested in their water management tracking program WaterView. This tool will assist in tracking customer use and can be used to create conservation campaign information and targeted outreach based. CMWD expects to use this program to develop regular and more targeted conservation outreach. May 12, 2026 Item #10 Page 149 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 10: Plan Adoption, Submittal and Implementation 10-1 10. PLAN ADOPTION, SUBMITTAL, AND IMPLEMENTATION This section of the 2025 UWMP addresses the steps CMWD will take to adopt the 2025 UWMP, submit it to DWR, and outlines the steps that will be taken should it prove necessary to amend the 2025 UWMP. 10.1 Plan Review and Notification Process CMWD encouraged community and public involvement in the 2025 UWMP by releasing a draft UWMP for public comment and scheduling a public hearing. The draft was released on March 11, 2026. The public hearing is May 12, 2026. This provides an opportunity for CMWD’s customers, interested agencies and organizations, and the public to learn about CMWD’s current and projected water supply situation, and plans to continue to provide a reliable water supply in the future. The hearing is an opportunity for people to ask questions regarding the current water reliability situation and the viability of future plans. The hearing includes a discussion of CMWD’s WSCP and associated annual reporting procedures, as well as CMWD’s SB X7-7 per capita water use targets and achievement of the target by 2020. A 60-day notice of the update to the UWMP and public hearing was provided to San Diego County and adjacent cities and other entities on March 9, 2026. The notification list has been included in Appendix A, and notified agencies, cities, and the county are listed in Table 2-5, along with their level of involvement with plan development. TABLE 10-1: NOTIFICATION TO CITIES AND COUNTIES DWR Table 10-1 Retail: Notification to Cities and Counties City Name 60 Day Notice Notice of Public Hearing City of Carlsbad County Name 60 Day Notice Notice of Public Hearing San Diego County Public hearing notifications were published in the San Diego Union Tribune on April 28 and May 5, 2026. A copy of the draft 2025 UWMP was made available for public review 30 days before the public hearing on the City of Carlsbad’s website at www.carlsbadca.gov. Hard copies are available for review at City offices. Copies of the published notices are included in Appendix A. May 12, 2026 Item #10 Page 150 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 10: Plan Adoption, Submittal and Implementation 10-2 10.2 Plan Adoption and Submittal Process CMWD’s Board of Directors will hold a public hearing to receive public comments on the UWMP, immediately prior to adoption of the UWMP. Following the public hearing on the document, this Plan is also scheduled to be adopted by the Board of Directors on May 12, 2026 with a provision that the CMWD Executive Manager is authorized to approve any minor plan revisions or edits resulting from the hearing. A copy of the adoption resolution will be provided in Appendix B. The 2025 UWMP will be submitted to DWR, the California State Library, and San Diego County within 30 days after adoption, prior to the CWC’s deadline of July 1, 2026. Submitted items include an electronic copy of the 2025 UWMP, along with copies of the required tables submitted through the WUE data online submittal tool to DWR, and one CD with an electronic copy to each of the California State Library and San Diego County, in accordance with the requirements in the 2025 Guidebook. The 2025 UMWP will be available for public review on the City of Carlsbad’s website within 30 days of filing a copy with DWR, or by July 30, 2026. 10.3 Plan Implementation All data used in development of this UWMP are the most current data available, and unless otherwise noted, include data for the calendar year. CMWD shall implement the adopted 2025 UWMP in accordance with the schedule described in this Plan. Any future amendments made to this Plan will require completion of the same series of notification, public hearing, adoption, and submittals as required in submittal of the adopted 2025 UWMP. 10.4 WSCP Adoption, Submittal and Availability The final WSCP is included in the adoption of the 2025 UWMP, as described in the previous sections. However, the WSCP can be amended, as needed, outside of a UWMP update cycle. The processes for approving WSCP amendments and conducting required public hearings are similar to those required for UWMP adoption. CMWD would release a 60-day notice of a public adoption hearing for the amended WSCP. The list of entities that would be notified are provided in Appendix A. The public hearing to receive public comments on the amended WSCP would be held immediately prior to the adoption of the amended WSCP by the Board of Directors. The amended WSCP would be made available for the public on the City of Carlsbad’s website within 30 days of the adoption date. May 12, 2026 Item #10 Page 151 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 11: References 11-1 11. REFERENCES Bureau of Reclamation. 2026. Colorado River Post 2026 Operations. U.S. Department of the Interior. https://www.usbr.gov/ColoradoRiverBasin/post2026/index.html. Carlsbad Municipal Water District (CMWD). 2019. 2019 Potable Water Master Plan. Carlsbad Municipal Water District (CMWD). 2019. 2019 Recycled Water Master Plan. Carlsbad Municipal Water District (CMWD). 2024. Project No.: C-067899-110 Phase III Recycled Water Project Quarterly Report, Reporting Period January 1 – March 31, 2024. Carlsbad Municipal Water District (CMWD). 2025. Project No.: C-067899-110 Phase III Recycled Water Project Project Completion Report. December. Carlsbad Municipal Water District (CMWD0. 2011. 2010 Urban Water Management Plan. City of Carlsbad. 2024. Climate Action Plan Update. City of Carlsbad. 2024. General Plan Land Use and Community Design Element. City of Carlsbad. 2024. Land Use Designation GIS data. September. Available online at: https://open-data-carlsbad.hub.arcgis.com/datasets/261c6732fb77436e8614c76f1976630f_0/explore. City of Carlsbad. 2024. Carlsbad Municipal Water District Ordinance List and Disposition Table. Available online at: https://ecode360.com/45344881. City of Carlsbad. 2025. Fiscal Year 2023-2024 Growth Management Program Monitoring Report. City of Carlsbad. 2025. Water, Sewer, Recycled Water Rates. Available: https://www.carlsbadca.gov/departments/utilities/rates. City of Carlsbad. 2026. Water Conservation. Available online at: https://www.carlsbadca.gov/departments/utilities/water/water-conservation. City of Carlsbad. N.d. Resident Resources. Available online at: https://www.carlsbadca.gov/departments/environmental-sustainability/clean-ocean-lagoons/residents. City of Carlsbad. N.d. Resident Resources. Available online at: https://www.carlsbadca.gov/departments/environmental-sustainability/clean-ocean-lagoons/residents. City of Carlsbad. N.d. Water Conservation. Available online at: https://www.carlsbadca.gov/departments/utilities/water/water-conservation. May 12, 2026 Item #10 Page 152 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 Chapter 11: References 11-2 City of Carlsbad. N. d. Carlsbad Municipal Water Code. Available online at: https://ecode360.com/45344879 Data from the National Oceanic Atmospheric Administration’s (NOAA) climate station at the McClellan Palomar Airport. 2026. Department of Water Resources. 2020. DAC Mapping Tool. Department of Water Resources. 2025. Urban Water Management Plan Guidebook 2025 Encina Wastewater Authority. 2025. Fiscal Year 2024-25 Annual Comprehensive Financial Report. Encina Wastewater Authority. https://www.encinajpa.com/images/Fiscal_Year_2024-25_Annual_Comprehesive_Financial_Report.pdf. Encina Wastewater Authority. 2025. Fiscal Year 2025-26 Operating & Capital Budget. Available online at: https://www.encinajpa.com/images/Fiscal_Year_2025-26_Operating__Capital_Budget.pdf. Leucadia Wastewater District. 2026. Service area map. https://www.lwwd.org/about/service-area-map. Metropolitan Water District of Southern California. 2025. Regional Urban Water Management Plan. National Oceanic Atmospheric Administration’s (NOAA). 2026. Climate station data at the McClellan Palomar Airport. North San Diego Water Reuse Coalition. 2020. North San Diego Water Reuse Coalition Regional Recycled Water Project. Available online at: http://nsdwrc.org/. San Diego Association of Governments (SANDAG). 2024. Series 15 Regional Forecast, City of Carlsbad. July. San Diego County Water Authority (SDCWA). 2025. Southern California water agencies end lengthy legal dispute. https://www.sdcwa.org/mwd-sdcwa-settlement. San Diego County Water Authority (SDCWA). 2026. Technical Draft 2025 Urban Water Management Plan. January. San Diego County Water Authority (SDCWA). N.d. Conservation WaterSmart SD website. Available: www.watersmartsd.org. Woodard & Curran. 2025. CMWD Annual Population Projects, 2025-2050. April 2. Woodard & Curran. 2025. Seasonal Population Variance Analysis Technical Memorandum. September 8. May 12, 2026 Item #10 Page 153 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX A: NOTIFICATION May 12, 2026 Item #10 Page 154 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 5950 El Camino Real Carlsbad, CA 92008 442-339-2722 www.carlsbadca.gov March 9, 2026 Carlsbad Municipal Water District 5950 El Camino Real Carlsbad, CA 92008 This letter is to inform you that Carlsbad Municipal Water District (CMWD) is updating its Urban Water Management Plan (UWMP) and Water Shortage contingency Plan (WSCP). California state law requires each urban water supplier to prepare and adopt a UWMP and WSCP every five years. The 2025 UWMP documents CMWD’s plans to ensure adequate water supplies to meet existing and future demands for water over at least 20-year period under a range of water supply conditions. California state law requires every urban water supplier to prepare and adopt a water shortage contingency plan as part of its UWMP that details how the supplier intends to act in the case of a water shortage condition. CMWD must adopt and update UWMP and WSCP, which is a chapter in the UWMP, in June 2026 in order to submit the adopted plan to the California Department of Water Resources by July 1, 2026. Conformance with California Water Code Division 6, Part 2.6, §10621, this letter serves as a notification to all city and county agencies within which CMWD provides water supplies that the UWMP and WSCP are being reviewed and updated. The draft 2025 UWMP and draft WSCP will be available for public review on the City of Carlsbad website (www.carlsbadca.gov) by Wednesday, March 11, 2026. Notice is hereby given that Tuesday, May 19, 2026, date has been rescheduled to Tuesday, May 12, 2026, at 5:00 P.M. at the City Council Chambers, 1200 Carlsbad Village Drive, Carlsbad, California 92008, the Board of Directors of CMWD will conduct a public hearing on the 2025 UWMP and WSCP and consider for adoption. The adopted 2025 UWMP and WSCP will be submitted to the California Department of Water Resources by July 1, 2026. If you would like additional information, please contact Keri Martinez, District Engineer, at 442- 200-7376 or Keri.Martinez@carlsbadca.gov, or myself at 442-339-5485. Sincerely, Amanda L. Flesse General Manager May 12, 2026 Item #10 Page 155 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Olivenhain Municipal Water District Kimberly Thorner General Manager 1966 Olivenhain Road Encinitas CA 92024 Rincon del Diablo MWD Clint Baze General Manager 1920 North Iris Lane Escondido CA 92026 San Elijo Joint Powers Authority Mike Thornton General Manager 2695 Manchester Avenue Cardiff-by-the-Sea CA 92007 San Diego County Water Authority Jeff Stephenson Director of Water Resources 4677 Overland Avenue San Diego CA 92123 San Diego Association of Governments Antoinette Meier Senior Director of Regional Planning 1011 Union Street Suite 400 San Diego CA 92101 City of Encinitas Scott Drapkin, Director Development Services 505 S Vulcan Avenue Encinitas CA 92024 County of San Diego Vince Nicoletti Director, Dept of Planning 5510 Overland Avenue Suite 210 San Diego CA 92123 City of San Diego Heidi Vonblum, Director Planning 202 C Street M.S. 413 San Diego CA 92101-4806 City of San Marcos Joseph Farace Planning Division Manager 1 Civic Center Drive San Marcos CA 92069 San Diego Local Agency Formation Commission Keene Simonds, Executive Officer 2550 Fifth Avenue Suite 725 San Diego CA 92103 City of Carlsbad Don Neu City Planner 1635 Faraday Avenue Carlsbad CA 92008 Vallecitos Water District James Gumpel General Manager 201 Vallecitos De Oro San Marcos CA 92069 Vista Community Development Dpt Joe Vacca Director 200 Civic Center Drive Vista CA 92084 Encina Wastewater Authority Scott McClelland General Manager 6200 Avenida Encinas Carlsbad CA 92011 City of Escondido Christopher W. McKinney Director of Utilities 201 N Broadway City Hall, Second Floor Escondido CA 92025 City of Oceanside Frederick Mayor Water Utilities Director 300 N Coast Highway Oceanside CA 92054 Leucadia Wastewater District Paul J. Bushee General Manager 1960 La Costa Avenue Carlsbad CA 92009 MWD of Southern California Shivaji Deshmukh General Manager P.O. Box 54153 Los Angeles CA 90054-0153 Santa Fe Irrigation District Al Lau General Manager P.O. Box 409 Rancho Santa Fe CA 92067 May 12, 2026 Item #10 Page 156 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX B: UWMP ADOPTION RESOLUTION (TO BE INCLUDED IN FINAL) May 12, 2026 Item #10 Page 157 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX C: UWMP CHECKLIST May 12, 2026 Item #10 Page 158 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 1 o f 12 UW M P C h e c k l i s t ( Fi n a l DW R Gu i d e b o o k Ap p e n d i x F ) Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 1 5 A pl a n sh a l l de s c r i b e an d ev a l u a t e so u r c e s of su p p l y , re a s o n a b l e an d pr a c t i c a l ef f i c i e n t us e s , r e c l a m a t i o n a n d d e m a n d m a n a g e m e n t ac t i v i t i e s . In t r o d u c t i o n an d ov e r v i e w Ch a p t e r 1 Ex e c u t i v e Su m m a r y , Se c t i o n 4 , Se c t i o n 6 , Se c t i o n 9 10 6 3 0 . 5 Ea c h pl a n sh a l l in c l u d e a si m p l e de s c r i p t i o n of th e Su p p l i e r ’ s pl a n in c l u d i n g wa t e r av a i l a b i l i t y , f u t u r e r e q u i r e m e n t s , a s t r a t e g y f o r me e t i n g n e e d s , a n d o t h e r p e r t i n e n t in f o r m a t i o n . Ad d i t i o n a l l y , a Su p p l i e r ma y al s o ch o o s e to in c l u d e a si m p l e de s c r i p t i o n at th e be g i n n i n g of ea c h ch a p t e r . Pl a n pr e p a r a t i o n Ch a p t e r 1 Ex e c u t i v e Su m m a r y 10 6 2 0 ( b ) Ev e r y pe r s o n th a t be c o m e s a Su p p l i e r sh a l l ad o p t UW M P wi t h i n on e ye a r af t e r it ha s be c o m e a Su p p l i e r . Pl a n pr e p a r a t i o n Se c t i o n 2. 1 Se c t i o n 2 10 6 4 4 Su p p l i e r sh a l l re p o r t th e Pu b l i c Wa t e r Sy s t e m s nu m b e r , vo l u m e of de l i v e r e d wa t e r , an d nu m b e r o f c o n n e c t i o n s t h a t a r e i n c l u d e d i n th i s U W M P . Pl a n pr e p a r a t i o n Se c t i o n 2. 5 Se c t i o n 2 . 1 , Ta b l e 2 -1 10 6 4 4 Su p p l i e r sh a l l re p o r t if th i s UW M P is an in d i v i d u a l UW M P an d wh e t h e r th e Su p p l i e r be l o n g s to a r e g i o n a l U W M P o r r e g i o n a l al l i a n c e . Pl a n pr e p a r a t i o n Se c t i o n 2. 5 Se c t i o n 2 . 1 , Ta b l e 2 -2, Ta b l e 2 -3 10 6 4 4 Su p p l i e r sh a l l re p o r t wh e t h e r th e da t a is in fi s c a l or ca l e n d a r ye a r s an d th e un i t s of me a s u r e u s e d f o r r e p o r t i n g w a t e r v o l u m e s . Pl a n pr e p a r a t i o n Se c t i o n 2. 5 Se c t i o n 2 . 1 , Ta b l e 2 -3 10 6 4 2 Pr o v i d e su p p o r t i n g do c u m e n t a t i o n t h a t t h e S u p p l i e r h a s en c o u r a g e d ac t i v e i n v o l v e m e n t o f d i v e r s e so c i a l , cu l t u r a l , an d ec o n o m i c el e m e n t s of th e po p u l a t i o n wi t h i n th e se r v i c e ar e a pr i o r to a n d d u r i n g t h e p r e p a r a t i o n o f t h e p l a n a n d c o n t i n g e n c y p l a n . Pl a n pr e p a r a t i o n Se c t i o n 2. 4 Ap p e n d i x A , Se c t i o n 2 . 3 , Se c t i o n 1 0 . 1 May 12, 2026 Item #10 Page 159 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 2 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 2 0 ( d ) ( 3 ) Co o r d i n a t e t h e p r e p a r a t i o n o f i t s p l a n w i t h o t h e r a p p r o p r i a t e ag e n c i e s i n t h e a r e a , i n c l u d i n g o t h e r Su p p l i e r s th a t s h a r e a co m m o n so u r c e , wa t e r ma n a g e m e n t ag e n c i e s , an d re l e v a n t pu b l i c ag e n c i e s , t o t h e e x t e n t p r a c t i c a b l e . Pl a n pr e p a r a t i o n Se c t i o n 2. 4 . 2 Se c t i o n 2 . 2 , Ta b l e 2 -4, Ta b l e 2 -5 10 6 3 1 ( h ) Re t a i l Su p p l i e r s wi l l in c l u d e do c u m e n t a t i o n th a t th e y ha v e pr o v i d e d th e i r Wh o l e s a l e S u p p l i e r ( s ) —if a n y —wi t h w a t e r u s e p r o j e c t i o n s fr o m t h a t s o u r c e . Pl a n pr e p a r a t i o n Se c t i o n 2. 4 . 1 Se c t i o n 2 . 2 , Ta b l e 2 -5 10 6 3 1 ( h ) Wh o l e s a l e S u p p l i e r s w i l l p r o v i d e t h e i r S u p p l i e r s w i t h i d e n t i f i c a t i o n an d q u a n t i f i c a t i o n o f t h e e x i s t i n g an d pl a n n e d s o u r c e s of wa t e r av a i l a b l e f r o m th e Wh o l e s a l e Su p p l i e r to th e Su p p l i e r d u r i n g va r i o u s w a t e r y e a r t y p e s . Pl a n pr e p a r a t i o n Se c t i o n 2. 4 . 1 N/ A 10 6 3 1 ( a ) De s c r i b e th e Su p p l i e r se r v i c e ar e a . Sy s t e m de s c r i p t i o n Ch a p t e r 3. 0 Se c t i o n 3 . 1 , Fi g u r e 3 -1 10 6 3 1 ( a ) De s c r i b e th e cl i m a t e of th e Su p p l i e r ’ s se r v i c e ar e a . Sy s t e m de s c r i p t i o n Se c t i o n 3. 3 Se c t i o n 3 . 1 . 2 10 6 3 1 ( a ) Pr o v i d e th e cu r r e n t an d pr o j e c t e d se r v i c e ar e a po p u l a t i o n s fo r 20 3 0 , 20 3 5 , 20 4 0 , 20 4 5 an d o p t i o n a l l y 2 0 5 0 . Sy s t e m de s c r i p t i o n Se c t i o n 3. 4 . 1 Se c t i o n 3 . 1 . 4 , Ta b l e 3 -2, Ta b l e 3 -3 10 6 3 1 ( a ) De s c r i b e ot h e r so c i a l , ec o n o m i c , an d de m o g r a p h i c fa c t o r s af f e c t i n g th e Su p p l i e r ’ s wa t e r m a n a g e m e n t p l a n n i n g . Sy s t e m de s c r i p t i o n Se c t i o n 3. 4 . 2 Se c t i o n 3 . 1 . 4 , Fi g u r e 3 -3 10 6 3 1 ( a ) De s c r i b e th e la n d us e s wi t h i n th e se r v i c e ar e a … in c l u d e th e cu r r e n t an d pr o j e c t e d la n d us e s w i t h i n t h e e x i s t i n g o r a n t i c i p a t e d s e r v i c e ar e a a f f e c t i n g t h e S u p p l i e r ’ s w a t e r m a n a g e m e n t p l a n n i n g . D e s c r i b e th e l a n d u s e s w i t h i n t h e s e r v i c e a r e a . Sy s t e m de s c r i p t i o n a n d ba s e l i n e s Se c t i o n 3. 5 Se c t i o n 3 . 1 . 3 , Ta b l e 3 -1 10 6 3 1 ( d ) ( 1 ) Qu a n t i f y pa s t , cu r r e n t , an d pr o j e c t e d wa t e r us e , id e n t i f y i n g th e us e s am o n g wa t e r us e se c t o r s . Sy s t e m wa t e r us e Se c t i o n s 4. 2 . 3 an d 4. 2 . 4 Se c t i o n 4 . 1 , Se c t i o n 4 . 2 May 12, 2026 Item #10 Page 160 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 3 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 3 1 ( d ) ( 3 ) ( A ) Re p o r t th e di s t r i b u t i o n sy s t e m wa t e r lo s s fo r ea c h of th e fi v e ye a r s pr e c e d i n g th e pl a n up d a t e . Sy s t e m wa t e r us e Se c t i o n 4. 3 . 1 Se c t i o n 4 . 1 . 8 , Ta b l e 4 -3 Ta b l e 4 -4 10 6 3 1 ( d ) ( 3 ) ( C ) Re t a i l Su p p l i e r s sh a l l pr o v i d e da t a to sh o w wh e t h e r th e di s t r i b u t i o n lo s s st a n d a r d s we r e me t . Sy s t e m wa t e r us e Se c t i o n 4. 3 . 2 Se c t i o n 4 . 1 . 8 , Ta b l e 4 -5 10 6 3 1 . 1 ( a ) In c l u d e pr o j e c t e d wa t e r us e ne e d e d fo r lo w e r in c o m e ho u s i n g pr o j e c t e d in th e se r v i c e ar e a of t h e S u p p l i e r . Sy s t e m wa t e r us e Se c t i o n 4. 2 . 5 . 4 Se c t i o n 4 . 2 . 3 10 6 3 1 ( d ) ( 4 ) ( A ) In pr o j e c t e d wa t e r us e , in c l u d e es t i m a t e s of wa t e r sa v i n g s fr o m ad o p t e d co d e s , pl a n s , an d o t h e r p o l i c i e s o r l a w s . Sy s t e m wa t e r us e Se c t i o n 4. 2 . 5 . 3 Se c t i o n 4 . 2 .2 10 6 3 1 ( d ) ( 4 ) ( B ) Pr o v i d e ci t a t i o n s of co d e s , st a n d a r d s , or d i n a n c e s , or pl a n s us e d to ma k e wa t e r us e pr o j e c t i o n s . Sy s t e m wa t e r us e Se c t i o n 4. 2 . 5 . 3 Se c t i o n 4 . 2 10 6 3 1 ( d ) ( 4 ) ( B ) ( i i ) To t h e e x t e n t t h a t a S u p p l i e r r e p o r t s t h e i n f o r m a t i o n d e s c r i b e d i n su b p a r a g r a p h ( A ) , a n u r b a n w a t e r Su p p l i e r sh a l l … In d i c a t e th e ex t e n t th a t th e wa t e r us e pr o j e c t i o n s co n s i d e r sa v i n g s fr o m c o d e s , st a n d a r d s , or d i n a n c e s , or t r a n s p o r t a t i o n an d la n d us e pl a n s . Wa t e r us e pr o j e c t i o n s th a t d o n o t a c c o u n t f o r t h e s e w a t e r s a v i n g s s h a l l be n o t e d o f t h a t f a c t . Sy s t e m wa t e r us e Se c t i o n 4. 2 . 5 . 3 Se c t i o n 4 .2 . 2 10 6 3 5 ( b ) De m a n d s un d e r cl i m a t e ch a n g e co n s i d e r a t i o n s mu s t be in c l u d e d as pa r t of th e dr o u g h t r i s k as s e s s m e n t . Sy s t e m wa t e r us e Se c t i o n 4. 2 . 5 . 6 Se c t i o n 4 . 2 . 1 , Se c t i o n 6 . 9 . 1 , Se c t i o n 7 . 3 10 6 0 8 . 3 6 Wh o l e s a l e Su p p l i e r s sh a l l in c l u d e an as s e s s m e n t of pr e s e n t an d pr o p o s e d fu t u r e me a s u r e s , p r o g r a m s , an d po l i c i e s to he l p th e i r Re t a i l Su p p l i e r s ac h i e v e ta r g e t e d wa t e r us e re d u c t i o n s . Ba s e l i n e s an d ta r g e t s Se c t i o n 5. 1 N/ A May 12, 2026 Item #10 Page 161 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 4 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 0 8 . 4 0 Re t a i l Su p p l i e r s sh a l l re p o r t on th e i r co m p l i a n c e in me e t i n g th e i r wa t e r us e ta r g e t s . Re p o r t i n g r e q u i r e m e n t s w i l l v a r y d e p e n d i n g o n wh e t h e r t h e S u p p l i e r : - Wa s co n s i d e r e d an ur b a n re t a i l wa t e r su p p l i e r in 20 2 0 , - Me t it s 20 2 0 ta r g e t in 20 2 0 , or - Wa s pa r t of a me r g e r or co n s o l i d a t i o n si n c e 20 2 0 . Ch a p t e r 5 Su b s e c t i o n s 5. 2 . 1 , 5. 2 . 2 , an d 5. 2 . 3 a d d r e s s ea c h of th e s e si t u a t i o n s . Ba s e l i n e s an d ta r g e t s Se c t i o n 5. 2 Se c t i o n 5 10 6 3 1 ( b ) ( 2 ) Wh e n mu l t i p l e so u r c e s of wa t e r su p p l y ar e id e n t i f i e d , de s c r i b e th e ma n a g e m e n t of ea c h su p p l y i n r e l a t i o n s h i p t o o t h e r i d e n t i f i e d su p p l i e s . Sy s t e m su p p l i e s Se c t i o n 6. 1 Se c t i o n 6 10 6 3 1 ( b ) ( 1 ) Pr o v i d e a d i s c u s s i o n o f a n t i c i p a t e d su p p l y a v a i l a b i l i t y u n d e r a no r m a l , s i n g l e dr y y e a r , a n d a d r o u g h t la s t i n g fi v e y e a r s , as we l l as mo r e fr e q u e n t an d se v e r e pe r i o d s of dr o u g h t , in c l u d i n g c h a n g e s i n su p p l y d u e t o c l i m a t e c h a n g e . Sy s t e m su p p l i e s Se c t i o n s 6. 1 an d 6. 2 Se c t i o n 7 . 2 10 6 3 1 ( b ) ( 4 ) ( C ) In d i c a t e w h e t h e r g r o u n d w a t e r i s a n e x i s t i n g o r p l a n n e d s o u r c e o f wa t e r a v a i l a b l e t o t h e S u p p l i e r . If gr o u n d w a t e r is id e n t i f i e d as an ex i s t i n g or pl a n n e d s o u r c e of wa t e r … (i n c l u d e ) a d e t a i l e d de s c r i p t i o n a n d a n a l y s i s o f t h e l o c a t i o n , a m o u n t a n d s u f f i c i e n c y o f gr o u n d w a t e r p u m p e d b y t h e S u p p l i e r f o r t h e p a s t f i v e y e a r s . Wa t e r su p p l i e s an d r e c y c l e d wa t e r Se c t i o n 6. 2 . 2 Se c t i o n 6 . 5 10 6 3 1 ( b ) ( 4 ) ( A ) In d i c a t e wh e t h e r a gr o u n d w a t e r su s t a i n a b i l i t y pl a n or gr o u n d w a t e r ma n a g e m e n t pl a n ha s be e n a d o p t e d b y t h e S u p p l i e r o r i f t h e r e i s an y o t h e r s p e c i f i c a u t h o r i z a t i o n f o r g r o u n d w a t e r m a n a g e m e n t . In c l u d e a c o p y o f t h e p l a n o r a u t h o r i z a t i o n . Sy s t e m su p p l i e s Se c t i o n 6. 2 . 2 Se c t i o n 6 . 5 10 6 3 1 ( b ) ( 4 ) ( B ) De s c r i b e th e gr o u n d w a t e r ba s i n . Sy s t e m su p p l i e s Se c t i o n 6. 2 . 2 Se c t i o n 6 . 5 10 6 3 1 ( b ) ( 4 ) ( B ) In d i c a t e if th e ba s i n ha s be e n ad j u d i c a t e d an d in c l u d e a co p y of th e co u r t or d e r or de c r e e an d a d e s c r i p t i o n o f t h e a m o u n t o f w a t e r t h e Su p p l i e r h a s t h e l e g a l r i g h t t o p u m p . Sy s t e m su p p l i e s Se c t i o n 6. 2 . 2 N/ A May 12, 2026 Item #10 Page 162 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 5 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 3 1 ( b ) ( 4 ) ( B ) Fo r un a d j u d i c a t e d ba s i n s … (i n c l u d e ) in f o r m a t i o n as to wh e t h e r DW R ha s id e n t i f i e d th e ba s i n as a h i g h - or m e d i u m -pr i o r i t y b a s i n in t h e m o s t c u r r e n t o f f i c i a l d e p a r t m e n t a l b u l l e t i n … Wa t e r su p p l i e s an d r e c y c l e d wa t e r Se c t i o n 6. 2 . 2 Se c t i o n 6 . 5 , Ta b l e 6 -7 10 6 3 1 ( b ) ( 4 ) ( B ) Fo r un a d j u d i c a t e d ba s i n s … de s c r i b e ef f o r t s by th e Su p p l i e r to co o r d i n a t e wi t h su s t a i n a b i l i t y or g r o u n d w a t e r a g e n c i e s t o a c h i e v e su s t a i n a b l e g r o u n d w a t e r c o n d i t i o n s . Wa t e r su p p l i e s an d r e c y c l e d wa t e r Se c t i o n 6. 2 . 2 Se c t i o n 6 . 5 10 6 3 1 ( b ) ( 4 ) ( C ) If g r o u n d w a t e r i s i d e n t i f i e d a s a n e x i s t i n g o r p l a n n e d s o u r c e o f wa t e r … ( i n c l u d e ) a d e t a i l e d d e s c r i p t i o n an d an a l y s i s of th e lo c a t i o n , am o u n t an d su f f i c i e n c y of gr o u n d w a t e r pu m p e d by th e S u p p l i e r fo r t h e p a s t f i v e y e a r s . Sy s t e m su p p l i e s Se c t i o n 6. 2 . 2 . N/ A 10 6 3 1 ( b ) ( 4 ) ( D ) Pr o v i d e a de t a i l e d de s c r i p t i o n an d an a l y s i s of th e am o u n t an d lo c a t i o n of gr o u n d w a t e r th a t is p r o j e c t e d t o b e p u m p e d . Sy s t e m su p p l i e s Se c t i o n 6. 2 . 2 N/ A 10 6 3 1 ( b ) Id e n t i f y an d qu a n t i f y th e ex i s t i n g an d pl a n n e d so u r c e s of wa t e r av a i l a b l e fo r 20 2 5 , 20 3 0 , 20 3 5 , 2 0 4 0 , 2 0 4 5 a n d o p t i o n a l l y 2 0 5 0 . Sy s t e m su p p l i e s Se c t i o n 6. 1 Se c t i o n 6 . 1 , Ta b l e 6 -1 10 6 3 1 ( c ) De s c r i b e th e op p o r t u n i t i e s fo r ex c h a n g e s or tr a n s f e r s of wa t e r on a sh o r t -te r m or lo n g -te r m ba s i s . Sy s t e m su p p l i e s Se c t i o n 6. 2 . 7 Se c t i o n 6 . 8 , Se c t i o n 8 . 3 , Ta b l e 8 -3 10 6 3 3 ( a ) De s c r i b e th e wa s t e w a t e r co l l e c t i o n an d tr e a t m e n t sy s t e m s in th e Su p p l i e r ’ s se r v i c e ar e a wi t h q u a n t i f i e d a m o u n t o f c o l l e c t i o n a n d tr e a t m e n t a n d t h e d i s p o s a l m e t h o d s . Sy s t e m su p p l i e s (r e c y c l e d wa t e r ) Se c t i o n 6. 2 . 5 Se c t i o n 6 . 4 .2 10 6 3 3 ( b ) De s c r i b e th e qu a n t i t y of tr e a t e d wa s t e w a t e r th a t me e t s re c y c l e d wa t e r s t a n d a r d s , is be i n g d i s c h a r g e d , a n d i s o t h e r w i s e a v a i l a b l e f o r us e i n a r e c y c l e d w a t e r p r o j e c t . Sy s t e m su p p l i e s (r e c y c l e d wa t e r ) Se c t i o n 6. 2 . 5 Se c t i o n 6 . 4 .2 10 6 3 3 ( c ) De s c r i b e th e re c y c l e d wa t e r cu r r e n t l y be i n g us e d in th e Su p p l i e r ' s se r v i c e ar e a . Sy s t e m su p p l i e s (r e c y c l e d wa t e r ) Se c t i o n 6. 2 . 5 Se c t i o n 6 . 4 . 4 10 6 3 3 ( d ) De s c r i b e an d qu a n t i f y th e po t e n t i a l us e s of re c y c l e d wa t e r an d pr o v i d e a de t e r m i n a t i o n of th e t e c h n i c a l a n d e c o n o m i c f e a s i b i l i t y of t h o s e u s e s . Sy s t e m su p p l i e s (r e c y c l e d wa t e r ) Se c t i o n 6. 2 . 5 Se c t i o n 6 . 4 . 51 May 12, 2026 Item #10 Page 163 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 6 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 3 3 ( e ) De s c r i b e th e pr o j e c t e d us e of re c y c l e d wa t e r wi t h i n th e Su p p l i e r ' s se r v i c e ar e a at th e en d of 5, 1 0 , 1 5 , a n d 2 0 y e a r s , a n d d e s c r i b e t h e ac t u a l u s e o f r e c y c l e d w a t e r i n c o m p a r i s o n t o u s e s p r e v i o u s l y pr o j e c t e d . Sy s t e m su p p l i e s (r e c y c l e d wa t e r ) Se c t i o n 6. 2 . 5 Se c t i o n 6 . 4 . 5, Ta b l e 6 -10 10 6 3 3 ( f ) De s c r i b e th e ac t i o n s th a t ma y be ta k e n to en c o u r a g e th e us e of re c y c l e d wa t e r an d th e p r o j e c t e d re s u l t s of th e s e ac t i o n s in te r m s of ac r e -fe e t of re c y c l e d wa t e r us e d pe r ye a r . Sy s t e m su p p l i e s (r e c y c l e d wa t e r ) Se c t i o n 6. 2 . 5 Se c t i o n 6 . 4 . 6 10 6 3 3 ( g ) Pr o v i d e a pl a n fo r op t i m i z i n g th e us e of re c y c l e d wa t e r in th e Su p p l i e r ' s se r v i c e ar e a . Sy s t e m su p p l i e s (r e c y c l e d wa t e r ) Se c t i o n 6. 2 . 5 Se c t i o n 6 . 4 . 3 10 6 3 1 ( g ) De s c r i b e de s a l i n a t e d wa t e r pr o j e c t op p o r t u n i t i e s fo r lo n g -te r m su p p l y . Sy s t e m su p p l i e s Se c t i o n 6. 2 . 6 Se c t i o n 6 . 3 10 6 3 1 ( f ) De s c r i b e t h e e x p e c t e d f u t u r e w a t e r s u p p l y p r o j e c t s a n d p r o g r a m s th a t m a y b e u n d e r t a k e n b y t h e wa t e r Su p p l i e r to ad d r e s s wa t e r su p p l y re l i a b i l i t y in av e r a g e , si n g l e -dr y , an d fo r a pe r i o d of d r o u g h t la s t i n g f i v e c o n s e c u t i v e w a t e r y e a r s . Sy s t e m su p p l i e s Se c t i o n 6. 2 . 1 0 Se c t i o n 6 . 8, Se c t i o n 7 . 2 10 6 3 1 . 2 ( a ) Th e UW M P mu s t in c l u d e en e r g y in f o r m a t i o n , as st a t e d in th e co d e , th a t a Su p p l i e r ca n re a d i l y ob t a i n . Sy s t e m su p p l i e r s , en e r g y i n t e n s i t y Se c t i o n 6. 3 an d Ap p e n d i x O Se c t i o n 6 . 1 0, Ap p e n d i x G 10 6 3 4 Pr o v i d e in f o r m a t i o n on th e qu a l i t y of ex i s t i n g so u r c e s of wa t e r av a i l a b l e to th e Su p p l i e r an d th e m a n n e r i n w h i c h wa t e r q u a l i t y af f e c t s w a t e r m a n a g e m e n t s t r a t e g i e s a n d s u p p l y r e l i a b i l i t y . Wa t e r s u p p l y re l i a b i l i t y as s e s s m e n t Se c t i o n 7. 1 Se c t i o n 7 . 1 10 6 3 5 ( a ) Se r v i c e Re l i a b i l i t y As s e s s m e n t : As s e s s th e wa t e r su p p l y re l i a b i l i t y du r i n g no r m a l , dr y , an d a d r o u g h t l a s t i n g f i v e c o n s e c u t i v e w a t e r ye a r s b y c o m p a r i n g t h e t o t a l w a t e r s u p p l y s o u r c e s a v a i l a b l e t o t h e Su p p l i e r w i t h t h e t o t a l p r o j e c t e d w a t e r u s e o v e r t h e n e x t 2 0 y e a r s . Wa t e r s u p p l y re l i a b i l i t y as s e s s m e n t Se c t i o n 7. 2 Se c t i o n 7 . 2 10 6 2 0 ( f ) De s c r i b e wa t e r ma n a g e m e n t to o l s an d op t i o n s to ma x i m i z e re s o u r c e s an d mi n i m i z e th e ne e d to i m p o r t w a t e r f r o m o t h e r re g i o n s . Wa t e r s u p p l y re l i a b i l i t y as s e s s m e n t Se c t i o n 7. 2 . 3 Se c t i o n 7 . 2 . 2 May 12, 2026 Item #10 Page 164 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 7 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 3 5 ( b ) Pr o v i d e a dr o u g h t ri s k as s e s s m e n t as pa r t of in f o r m a t i o n co n s i d e r e d in de v e l o p i n g th e de m a n d m a n a g e m e n t m e a s u r e s a n d wa t e r s u p p l y p r o j e c t s . Wa t e r s u p p l y re l i a b i l i t y as s e s s m e n t Se c t i o n 7. 3 Se c t i o n 7 . 3 10 6 3 5 ( b ) ( 1 ) In c l u d e a d e s c r i p t i o n o f t h e d a t a , m e t h o d o l o g y , a n d b a s i s f o r o n e or m o r e s u p p l y s h o r t a g e c o n d i t i o n s th a t a r e ne c e s s a r y to co n d u c t a dr o u g h t ri s k a s s e s s m e n t fo r a dr o u g h t pe r i o d th a t l a s t s f i v e co n s e c u t i v e y e a r s . Wa t e r s u p p l y re l i a b i l i t y as s e s s m e n t Se c t i o n 7. 3 Se c t i o n 7 . 3 . 1 10 6 3 5 ( b ) ( 2 ) In c l u d e a de t e r m i n a t i o n of th e re l i a b i l i t y of ea c h so u r c e of su p p l y un d e r a va r i e t y of wa t e r s h o r t a g e c o n d i t i o n s . Wa t e r s u p p l y re l i a b i l i t y as s e s s m e n t Se c t i o n 7. 3 Se c t i o n 7 . 3 . 2 10 6 3 5 ( b ) ( 3 ) In c l u d e a co m p a r i s o n of th e to t a l wa t e r su p p l y so u r c e s av a i l a b l e to th e Su p p l i e r wi t h th e to t a l p r o j e c t e d w a t e r u s e f o r t h e d r o u g h t pe r i o d . Wa t e r s u p p l y re l i a b i l i t y as s e s s m e n t Se c t i o n 7. 3 Se c t i o n 7 . 3 10 6 3 5 ( b ) ( 4 ) In c l u d e c o n s i d e r a t i o n s o f t h e h i s t o r i c a l d r o u g h t h y d r o l o g y , pl a u s i b l e c h a n g e s o n p r o j e c t e d s u p p l i e s an d de m a n d s un d e r cl i m a t e ch a n g e co n d i t i o n s , an t i c i p a t e d re g u l a t o r y ch a n g e s , an d ot h e r l o c a l l y a p p l i c a b l e c r i t e r i a . Wa t e r s u p p l y re l i a b i l i t y as s e s s m e n t Se c t i o n 7. 3 Se c t i o n 7 . 1 , Se c t i o n 7 . 3 10 6 3 2 ( a ) Pr o v i d e a wa t e r sh o r t a g e co n t i n g e n c y pl a n (W S C P ) wi t h sp e c i f i e d el e m e n t s be l o w . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Ch a p t e r 8 Se c t i o n 8 10 6 3 2 ( a ) ( 1 ) Pr o v i d e an an a l y s i s of wa t e r su p p l y re l i a b i l i t y (f r o m Gu i d e b o o k Ch a p t e r 7) in th e WS C P . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Ch a p t e r 8 Se c t i o n 8 . 1 10 6 3 2 ( a ) ( 2 ) ( A ) Pr o v i d e th e wr i t t e n de c i s i o n -ma k i n g pr o c e s s an d ot h e r me t h o d s th a t th e Su p p l i e r wi l l us e ea c h y e a r t o d e t e r m i n e i t s w a t e r re l i a b i l i t y . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 2 Se c t i o n 8 . 2 . 1 May 12, 2026 Item #10 Page 165 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 8 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 3 2 ( a ) ( 2 ) ( B ) Pr o v i d e da t a an d me t h o d o l o g y to ev a l u a t e th e Su p p l i e r ’ s wa t e r re l i a b i l i t y fo r th e cu r r e n t ye a r a n d o n e d r y y e a r p u r s u a n t t o f a c t o r s in t h e c o d e . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 2 Se c t i o n 8 . 2 . 2 10 6 3 2 ( a ) ( 3 ) ( A ) De f i n e si x st a n d a r d wa t e r sh o r t a g e le v e l s of 10 % , 20 % , 30 % , 40 % , 50 % sh o r t a g e , an d gr e a t e r t h a n 5 0 % s h o r t a g e . T h e s e l e v e l s s h a l l b e ba s e d o n s u p p l y c o n d i t i o n s , i n c l u d i n g p e r c e n t r e d u c t i o n s i n su p p l y , c h a n g e s i n g r o u n d w a t e r l e v e l s , c h a n g e s i n s u r f a c e el e v a t i o n , o r o t h e r c o n d i t i o n s . T h e s h o r t a g e l e v e l s s h a l l a l s o a p p l y to a c a t a s t r o p h i c i n te r r u p t i o n o f s u p p l y . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 3 Se c t i o n 8 . 3 10 6 3 2 ( a ) ( 3 ) ( B ) Su p p l i e r s wi t h an ex i s t i n g WS C P th a t us e s di f f e r e n t wa t e r sh o r t a g e le v e l s mu s t c r o s s re f e r e n c e t h e i r c a t e g o r i e s w i t h t h e s i x s t a n d a r d ca t e g o r i e s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 3 Se c t i o n 8 . 3 , Ta b l e 8 -2 10 6 3 2 ( a ) ( 4 ) ( A ) Su p p l i e r s wi t h WS C P s th a t al i g n wi t h th e de f i n e d sh o r t a g e le v e l s mu s t sp e c i f y lo c a l l y a p p r o p r i a t e s u p p l y a u g m e n t a t i o n a c t i o n s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 4 Se c t i o n 8 . 3 10 6 3 2 ( a ) ( 4 ) ( B ) Sp e c i f y lo c a l l y ap p r o p r i a t e de m a n d re d u c t i o n ac t i o n s to ad e q u a t e l y re s p o n d to sh o r t a g e s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 4 Se c t i o n 8 . 3 , Ta b l e 8 -4 10 6 3 2 ( a ) ( 4 ) ( C ) Sp e c i f y lo c a l l y ap p r o p r i a t e op e r a t i o n a l ch a n g e s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 4 Se c t i o n 8 . 3 Ta b l e 8 -3 10 6 3 2 ( a ) ( 4 ) ( D ) Sp e c i f y ad d i t i o n a l ma n d a t o r y pr o h i b i t i o n s ag a i n s t sp e c i f i c wa t e r us e pr a c t i c e s th a t a r e in a d d i t i o n t o S t a t e -ma n d a t e d p r o h i b i t i o n s ar e a p p r o p r i a t e t o l o c a l c o n d i t i o n s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 4 Se c t i o n 8 . 3 , Ta b l e 8 -4 10 6 3 2 ( a ) ( 4 ) ( E ) Es t i m a t e th e ex t e n t to wh i c h th e ga p be t w e e n su p p l i e s an d de m a n d wi l l be re d u c e d by i m p l e m e n t a t i o n o f t h e a c t i o n . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 4 Se c t i o n 8 . 3 , Ta b l e 8 -4 May 12, 2026 Item #10 Page 166 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 9 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 3 2 . 5 Th e UW M P sh a l l in c l u d e a se i s m i c ri s k as s e s s m e n t an d mi t i g a t i o n pl a n . Wa t e r s h o r t a g e co n t i n g e n c y pl a n Se c t i o n 8. 4 . 6 Se c t i o n 8 . 4 . 1 10 6 3 2 ( a ) ( 5 ) ( A ) Su p p l i e r s mu s t de s c r i b e th a t th e y wi l l in f o r m cu s t o m e r s , th e pu b l i c an d ot h e r s re g a r d i n g an y c u r r e n t o r p r e d i c t e d w a t e r s h o r t a g e s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 5 Se c t i o n 8 . 5 .3 10 6 3 2 ( a ) ( 5 ) ( B ) , 10 6 3 2 ( a ) ( 5 ) ( C ) Su p p l i e r s mu s t de s c r i b e th a t th e y wi l l in f o r m cu s t o m e r s , th e pu b l i c an d ot h e r s re g a r d i n g an y s h o r t a g e r e s p o n s e a c t i o n s t r i g g e r e d o r an t i c i p a t e d t o b e t r i g g e r e d a n d o t h e r r e l e v a n t co m m u n i c a t i o n s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 5 Se c t i o n 8 . 5 . 4 10 6 3 2 ( a ) ( 6 ) Re t a i l Su p p l i e r mu s t de s c r i b e ho w it wi l l en s u r e co m p l i a n c e wi t h an d en f o r c e pr o v i s i o n s of th e WS C P . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 6 Se c t i o n 8 . 6 10 6 3 2 ( a ) ( 7 ) ( A ) De s c r i b e th e le g a l au t h o r i t y th a t em p o w e r s th e Su p p l i e r to en f o r c e sh o r t a g e re s p o n s e ac t i o n s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 7 Se c t i o n 8 . 1 . 1 10 6 3 2 ( a ) ( 7 ) ( B ) Pr o v i d e a st a t e m e n t th a t th e Su p p l i e r wi l l de c l a r e a wa t e r sh o r t a g e em e r g e n c y pe r Wa t e r Co d e C h a p t e r 3 . Wa t e r S h o r t a g e Em e r g e n c i e s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 7 Se c t i o n 8 . 3 10 6 3 2 ( a ) ( 7 ) ( C ) Pr o v i d e a st a t e m e n t th a t th e Su p p l i e r wi l l co o r d i n a t e wi t h an y ci t y or co u n t y wi t h i n wh i c h it p r o v i d e s w a t e r f o r t h e p o s s i b l e pr o c l a m a t i o n o f a l o c a l e m e r g e n c y . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 7 Se c t i o n 8 . 5 .1 10 6 3 2 ( a ) ( 8 ) ( A ) De s c r i b e th e po t e n t i a l re v e n u e re d u c t i o n s an d ex p e n s e in c r e a s e s as s o c i a t e d wi t h ac t i v a t e d s h o r t a g e r e s p o n s e a c t i o n s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 8 Se c t i o n 8 . 7 10 6 3 2 ( a ) ( 8 ) ( B ) Pr o v i d e a de s c r i p t i o n of mi t i g a t i o n ac t i o n s ne e d e d to ad d r e s s re v e n u e re d u c t i o n s an d ex p e n s e i n c r e a s e s a s s o c i a t e d w i t h ac t i v a t e d s h o r t a g e r e s p o n s e a c t i o n s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 8 Se c t i o n 8 . 7 , Ta b l e 8 -6 May 12, 2026 Item #10 Page 167 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 10 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 3 2 ( a ) ( 8 ) ( C ) Re t a i l Su p p l i e r s mu s t de s c r i b e th e co s t of co m p l i a n c e wi t h Wa t e r Co d e Ch a p t e r 3. 3 , Ex c e s s i v e R e s i d e n t i a l W a t e r U s e D u r i n g D r o u g h t . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g Se c t i o n 8. 8 Se c t i o n 8 . 7 10 6 3 2 ( a ) ( 9 ) Re t a i l Su p p l i e r s mu s t de s c r i b e th e mo n i t o r i n g an d re p o r t i n g re q u i r e m e n t s an d pr o c e d u r e s th a t e n s u r e a p p r o p r i a t e d a t a a r e co l l e c t e d , t r a c k e d , a n d a n a l y z e d f o r p u r p o s e s o f m o n i t o r i n g cu s t o m e r c o m p l i a n c e . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g 10 6 3 2 ( a ) ( 9 ) Se c t i o n 8 . 8 10 6 3 2 ( a ) ( 1 0 ) De s c r i b e re e v a l u a t i o n an d im p r o v e m e n t pr o c e d u r e s fo r mo n i t o r i n g an d ev a l u a t i o n of th e WS C P to e n s u r e r i s k t o l e r a n c e i s a d e q u a t e an d a p p r o p r i a t e w a t e r s h o r t a g e m i t i g a t i o n s t r a t e g i e s a r e im p l e m e n t e d . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g 10 6 3 2 ( a ) ( 1 0 ) Se c t i o n 8 . 9 10 6 3 2 ( b ) An a l y z e an d de f i n e wa t e r fe a t u r e s th a t ar e ar t i f i c i a l l y su p p l i e d wi t h wa t e r , in c l u d i n g po n d s , l a k e s , w a t e r f a l l s , a n d f o u n t a i n s , s e p a r a t e l y fr o m s w i m m i n g p o o l s a n d s p a s . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g 10 6 3 2 ( b ) Se c t i o n 8 . 1 0 10 6 3 2 ( c ) Ma k e av a i l a b l e th e WS C P to cu s t o m e r s an d an y ci t y or co u n t y wh e r e it pr o v i d e s wa t e r wi t h i n 30 d a y s a f t e r a d o p t i o n o f t h e p l a n . Wa t e r s h o r t a g e co n t i n g e n c y pl a n n i n g 10 6 3 2 ( c ) Ap p e n d i x A , Se c t i o n 8 . 1 . 2 , Se c t i o n 1 0 . 2 10 6 3 1 ( e ) ( 1 ) Re t a i l S u p p l i e r s s h a l l pr o v i d e a d e s c r i p t i o n o f t h e n a t u r e a n d e x t e n t of e a c h d e m a n d m a n a g e m e n t me a s u r e im p l e m e n t e d ov e r th e pa s t fi v e ye a r s . Th e de s c r i p t i o n wi l l ad d r e s s s p e c i f i c m e a s u r e s l i s t e d i n co d e . De m a n d ma n a g e m e n t me a s u r e s 10 6 3 1 ( e ) ( 1 ) Se c t i o n 9 . 2 10 6 3 1 ( e ) ( 2 ) Wh o l e s a l e Su p p l i e r s sh a l l de s c r i b e sp e c i f i c de m a n d ma n a g e m e n t me a s u r e s li s t e d in co d e , th e i r d i s t r i b u t i o n s y s t e m a s s e t ma n a g e m e n t p r o g r a m , a n d S u p p l i e r a s s i s t a n c e p r o g r a m . De m a n d ma n a g e m e n t me a s u r e s 10 6 3 1 ( e ) ( 2 ) N/ A 10 6 0 8 . 2 6 ( a ) Re t a i l Su p p l i e r s sh a l l co n d u c t a pu b l i c he a r i n g to di s c u s s ad o p t i o n , im p l e m e n t a t i o n , an d e c o n o m i c i m p a c t o f w a t e r u s e t a r g e t s (r e c o m m e n d e d t o d i s c u s s c o m p l i a n c e ) . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 0 8 . 2 6 ( a ) Se c t i o n 1 0 . 1 May 12, 2026 Item #10 Page 168 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 11 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 2 1 ( b ) No t i f y , at le a s t 60 da y s pr i o r to th e pu b l i c he a r i n g , an y ci t y or co u n t y wi t h i n wh i c h th e Su p p l i e r p r o v i d e s w a t e r t h a t t h e S u p p l i e r wi l l b e r e v i e w i n g t h e U W M P a n d c o n s i d e r i n g a m e n d m e n t s o r ch a n g e s t o t h e p l a n . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 2 1 ( b ) Ap p e n d i x A , Se c t i o n 1 0 . 1 10 6 2 1 ( f ) Ea c h ur b a n wa t e r Su p p l i e r sh a l l up d a t e an d su b m i t it s 20 2 5 pl a n to DW R by Ju l y 1, 20 2 6 . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 2 1 ( f ) Se c t i o n 1 0 . 2 10 6 4 2 Pr o v i d e su p p o r t i n g do c u m e n t a t i o n th a t th e Su p p l i e r ma d e th e UW M P an d WS C P av a i l a b l e fo r p u b l i c i n s p e c t i o n , p u b l i s h e d no t i c e of t h e pu b l i c h e a r i n g , a n d he l d a p u b l i c h e a r i n g ab o u t t h e U W M P an d W S C P . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 4 2 Ap p e n d i x A , Se c t i o n 1 0 . 1 10 6 4 2 Th e Su p p l i e r is to pr o v i d e th e ti m e an d pl a c e of th e he a r i n g to an y ci t y or co u n t y wi t h i n wh i c h t h e S u p p l i e r p r o v i d e s w a t e r . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 4 2 Ap p e n d i x A , Se c t i o n 1 0 . 1 10 6 4 2 Pr o v i d e su p p o r t i n g do c u m e n t a t i o n th a t th e UW M P an d WS C P ha ve be e n ad o p t e d as pr e p a r e d o r mo d i f i e d . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 4 2 Ap p e n d i x D , Se c t i o n 1 0 . 2 10 6 4 4 ( a ) Pr o v i d e su p p o r t i n g do c u m e n t a t i o n th a t th e Su p p l i e r ha s su b m i t t e d th e i r UW M P to th e Ca l i f o r n i a S t a t e L i b r a r y . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 4 4 ( a ) Se c t i o n 1 0 . 2 10 6 4 4 ( a ) ( 1 ) Pr o v i d e su p p o r t i n g do c u m e n t a t i o n th a t th e Su p p l i e r ha s su b m i t t e d th e i r UW M P to an y ci t y or c o u n t y w i t h i n w h i c h t h e S u p p l i e r pr o v i d e s w a t e r n o l a t e r t h a n 3 0 d a y s a f t e r a d o p t i o n . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 4 4 ( a ) ( 1 ) Se c t i o n 1 0 . 2 10 6 4 4 ( a ) ( 2 ) Th e UW M P , or am e n d m e n t s to th e UW M P , su b m i t t e d to DW R sh a l l be su b m i t t e d el e c t r o n i c a l l y . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 4 4 ( a ) ( 2 ) Se c t i o n 1 0 . 2 May 12, 2026 Item #10 Page 169 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Pa g e 12 o f 12 Wa t e r C o d e Se c t i o n Su m m a r y a s A p p l i e s t o U W M P Su b j e c t 20 2 5 Gu i d e b o o k Lo c a t i o n 20 2 5 UW M P Lo c a t i o n 10 6 4 4 ( b ) If re v i s e d , su b m i t a co p y of th e WS C P to DW R wi t h i n 30 da y s of ad o p t i o n . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n 10 6 4 4 ( b ) Se c t i o n 1 0 . 4 10 6 4 5 ( a ) Pr o v i d e su p p o r t i n g do c u m e n t a t i o n th a t , no t la t e r th a n 30 da y s af t e r fi l i n g a co p y of it s UW M P w i t h D W R , t h e S u p p l i e r h a s o r w i l l m a k e th e p l a n a v a i l a b l e f o r p u b l i c r e v i e w d u r i n g n o r m a l b u s i n e s s h o u r s . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n Se c t i o n 10 . 5 Se c t i o n 1 0 . 2 10 6 4 5 ( b ) Pr o v i d e su p p o r t i n g do c u m e n t a t i o n th a t , no t la t e r th a n 30 da y s af t e r fi l i n g a co p y of it s WS C P w i t h D W R , t h e S u p p l i e r h a s o r w i l l m a k e t h e pl a n a v a i l a b l e f o r p u b l i c r e v i e w d u r i n g n o r m a l b u s i n e s s h o u r s . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n Se c t i o n 10 . 5 Se c t i o n 1 0 . 2 10 6 2 1 ( c ) If Su p p l i e r is re g u l a t e d by th e Pu b l i c Ut i l i t i e s Co m m i s s i o n , in c l u d e it s pl a n an d co n t i n g e n c y pl a n a s p a r t o f i t s g e n e r a l r a t e c a s e f i l i n g s . Pl a n a d o p t i o n , su b m i t t a l , a n d im p l e m e n t a t i o n Se c t i o n 10 . 6 N/ A May 12, 2026 Item #10 Page 170 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX D: UWMP REQUIRED TABLES May 12, 2026 Item #10 Page 171 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 CA3710005 Carlsbad Municipal Water District 29,506 14,462 29,506 14,462Total Public Water System Number Public Water System Name Number of Municipal Connections 2025 Submittal Table 2-1 Retail: Public Water Systems Add additional rows as needed NOTES: This table only reflects potable water connections and deliveries. CMWD’s recycled water system has 1,015 connections and supplied 3,708 AF in 2025. Volume of Water Supplied 2025 (AF) DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. May 12, 2026 Item #10 Page 172 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Select One Name of Regional Alliance or RUWMP (Drop Down List) NOTES: CMWD is a member agency of the San Diego County Water Authority. Submittal Table 2-2: Plan Identification Type of Plan Individual UWMP If Water Supplier is also a member of a SB X7-7 Regional Alliance, select name from the drop-down. Regional Urban Water Management Plan (RUWMP) If Supplier selected RUWMP, select name from the drop-down. May 12, 2026 Item #10 Page 173 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Supplier is a wholesale supplier Supplier is a retail supplier UWMP Tables are in calendar years UWMP Tables are in fiscal years Unit AF Submittal Table 2-3: Supplier Identification Type of Supplier (select one or both) Fiscal or Calendar Year (select one) If using fiscal years provide month and date that the fiscal year begins (mm/dd) Units of measure used in UWMP (Select from the drop down list). DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. NOTES: May 12, 2026 Item #10 Page 174 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Submittal Table 2-4 Retail: Water Supplier Information Exchange Water Code Section 10631(h) The retail Supplier has informed the following wholesale supplier(s) of projected water use. Wholesale Water Supplier Name Add additional rows as needed San Diego County Water Authority NOTES: May 12, 2026 Item #10 Page 175 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2025 2030 2035 2040 2045 2050(opt) 96,371 106,031 119,616 119,616 119,616 119,616 Submittal Table 3-1 Retail: Population - Current and Projected Water Code Section 10631(a) Population Served NOTES: May 12, 2026 Item #10 Page 176 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Use Type Drop down list May select each use multiple times These are the only use types that will be recognized by the WUEdata online submittal tool Potable or Non-Potable (OPTIONAL) Drop down list Volume (AF) Single Family Potable 7,254 Multi-Family Potable 1,862 Commercial Potable 2,636 Industrial Potable 38 Institutional/Governmental Potable 122 Agricultural Potable 145 Landscape Potable 1,502 Distribution System Water Loss Real and Apparent Loss Potable 863 Other (optional)Unbilled Metered and Unbilled Unmetered Potable 40 Landscape Recycled Non-Potable 3,708 14462 3708 18,170Total Submittal Table 4-1 Retail: Total Uses for Potable and Non-Potable Water — Actual Water Code Section 10631(d)(1) NOTES: Actual water demands are based on CMWD’s 2025 billing data and the AWWA water loss audit. Billing data are reported in calendar year. The AWWA water loss audit was completed for FY2025 (July 1, 2024 – June 30, 2025) as the most recent water loss data available. Other potable use includes "unbilled unmetered consumption" as reported in the FY2025 AWWA water loss audit. Temporary potable meters billing category was incorporated into the Single-Family use type. Fire protection billing category was incorporated into the Institutional/ Governmental use type. Non-potable landscape represents recycled water demands, which includes agricultural, commercial, irrigation, and industrial customers. Recycled water demands also include temporary recycled water meters. DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. 2025 Actual Water Use Add additional rows as needed Subtotal Potable Subtotal Non-Potable Additional Description (as needed) May 12, 2026 Item #10 Page 177 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Use Type Drop down list May select each use multiple times These are the only Use Types that will be recognized by the WUEdata online submittal tool Potable or Non-Potable (OPTIONAL) Drop down list 2030 (AF)2035 (AF)2040 (AF)2045 (AF)2050 opt (AF) Single Family Potable 7897 8716 8716 8716 8716 Multi-Family Potable 2128 2464 2464 2464 2464 Commercial Potable 2913 3066 3226 3395 3573 Industrial Potable 38 40 42 44 46 Institutional/Governmental Potable 145 152 160 169 177 Agricultural Potable 1227 1136 1052 974 902 Landscape Potable 163 163 163 163 163 Distribution System Water Loss Real and Apparent Loss Potable 363 393 396 398 401 Other (optional)Unbilled Metered and Unbilled Unmetered Potable 41 44 44 45 45 Landscape Recycled Non-Potable 3,898 4,218 4,218 4,218 4,218 14,915 16,174 16,263 16,368 16,487 3,898 4,218 4,218 4,218 4,218 18,813 20,392 20,481 20,586 20,705 Submittal Table 4-2 Retail: Total Uses for Potable, and Non-Potable Water — ProjectedWater Code Section 10631(d)(1) Projected Water Use (Report To the Extent that Records are Available) Additional Description (as needed) NOTES: Total DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. Subtotal Non-Potable Subtotal Potable Add additional rows as needed. May 12, 2026 Item #10 Page 178 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Are Future Water Savings Included in Projections? Drop down list (y/n) Yes If "Yes" to above, state the section or page number, in the cell to the right, where citations of the codes, ordinances, or otherwise are utilized in demand projections are found. Optional Suppliers may complete Optional Submittal Table 4-4 R to quantify the expected savings. Sections 4.2.2 and 5.2 Are Lower Income Residential Demands Included In Projections? Drop down list (y/n)Yes Optional If the method for accounting Lower Income Residential Demands has been included, provide page number where this accounting can be found. Submittal Table 4-3 Retail: Inclusion in Water Use Projections Water Code Section 10631 (a), 10631 (d)(4)(A), and 10631 (d)(4)(B) NOTES: DWR NOTES: Additional guidance is provided in Appendix K. May 12, 2026 Item #10 Page 179 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Public Water System ID # Reported in Table 2-1 R Reporting Period Submitted to DWR Water Loss Audit Program (yes/no) 2020 Yes 2021 Yes2022Yes 2023 Yes 2024 Yes Submittal Table 4-5 Retail: Water Loss Audit Reporting Water Code Section 10631(d)(3)(A) CA3710005 DWR NOTES: Suppliers will provide a link to the WUEdata submittals of their Water Loss Audit Reports. NOTES:2024 reported on fiscal year (July 1 – June 30); all other on calendar year Report submittal status for all five years for each Public Water System as available. Add rows as needed May 12, 2026 Item #10 Page 180 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2028 Real Water Loss Standard per Unit per day Units for Real Water Loss Drop down list Number of Units (Connections or Miles corresponding with units selected) Volume of Total Real Loss (from AWWA Water Loss Audit)(AF) 2028 Apparent Water Loss Standard per Unit per Day Units for Apparent Water Loss Number of Connections Volume of Total Apparent Loss (from AWWA Water Loss Audit)(AF) CA3710005 Yes 13 Gallons per Service Connection per Day (GPSCD) 28283 863.026 27.2 8.3 Gallons per Service Connection per Day (GPSCD) 28283 267.585 8.4 Submittal Table 4-6 Retail: Progress Towards 2028 Water Loss Standard Water Code Section 10631(d)(3)(C) NOTES: Apparent Water Loss Did the Water Board Calculate a Water Loss Standard for this Public Water System? (y/n) If no, Supplier will not complete this row. Real Water Loss Water Board's Calculated Water Loss Standards DWR NOTES: Units of measure (AF, CCF, MG) for Water Loss MUST remain consistent with units reported in Submittal Table 2-3. The units reported in Submittal Table 2-3 are used in this table's calculations. Public Water System ID # Reported in Submittal Table 2-1 R Add additional rows as needed. Most Recent AWWA Water Loss Audit Real Water Loss Per Unit per Day Most Recent AWWA Water Loss Audit Apparent Water Loss Per Unit per Day State Water Board Standard State Water Board Standard May 12, 2026 Item #10 Page 181 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Actual 2025 GPCD (From SB X7-7 Compliance Form) Did Supplier meet the 2020 Target in 2025? No Individual Target 207 134 Yes NA Submittal Table 5-1 Retail: SB X7-7 2020 Target Progress Water Code Section 10608.40 NOTES: Did Supplier Achieve Targeted Reduction for 2020? Actual 2020 GPCD2020 Target Regional Alliance Target or Individual Target? Drop down list DWR NOTES: Suppliers calculating a 2025 GPCD will need to complete and submit SB X 7-7 Compliance Tables to verify the use of SB X7-7 Methodologies. Suppliers that were part of a merger or consolidation since 2020 see Chapter 5 and Appendix P for guidance. NA=Not Applicable Check the box if the Supplier was not an Urban Water Supplier during or before the 2020 UWMP reporting cycle. Proceed to the next table. Only for suppliers that did not meet the Target in 2020 See DWR NOTES below. Was Supplier part of a merger or consolidation since 2020? May 12, 2026 Item #10 Page 182 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Groundwater Type Drop Down List May use each category multiple times Potable or Non-Potable (OPTIONAL) Drop down list Location or Basin Name 2021 (AF)2022 (AF)2023 (AF)2024 (AF)2025 (AF) 0 0 0 0 0 Add additional rows as needed Submittal Table 6-1 Retail: Groundwater Volume Pumped Water Code Section 10631(4) and 10631(4)(c) DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. NOTES Total Check the box if the Supplier does not pump groundwater. Proceed to the next table. Check the box if all or part of the groundwater described below is desalinated. (OPTIONAL) May 12, 2026 Item #10 Page 183 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 100% 100% Name of Wastewater Collection Agency Wastewater Volume Metered or Estimated? OPTIONAL Drop Down List Volume of Wastewater Collected from UWMP Service Area 2025 (AF) Name of Wastewater Treatment Plant (WWTP) and Place ID Number Drop down list Is WWTP Located Within UWMP Area? Drop Down List City of Carlsbad Metered 6,918 Encina Water Pollution Control Facility, Place ID 222758 Yes Leucadia Wastewater District (LWWD)Estimated 968 Encina Water Pollution Control Facility, Place ID 222758 Yes Vallecitos Water District (VWD)Estimated 20 Encina Water Pollution Control Facility, Place ID 222758 Yes 7,906 Check the box if there is no wastewater collection system. Proceed to the next table. NOTES: The Encina Pollution Control Facility is owned and operated by the Encina Wastewater Authority, a joint powers authority that is owned by six agencies, including City of Carlsbad, LWWD and VWD. Wastewater flows are reported for Calendar Year 2025, ending December 31, 2025. LWWD serves a portion of CMWD's service area. The 968 AF for Leucadia was obtained from EWA reports. VWD collects wastewater for 80 homes in the CMWD service area. The agreement estimates VWD collects 220 gallons per day of wastewater from each home. Submittal Table 6-2 Retail: Wastewater Collected Within Service Area Water Code Section 10633(a) Percentage of 2025 service area population served by wastewater collection system (OPTIONAL) Percentage of 2025 service area served by wastewater collection system (OPTIONAL) DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. Additional Guidance: See Appendix M, Section M.21 for detailed guidance on this table. Wastewater Collection Recipient of Collected Wastewater Total Wastewater Received from UWMP Service Area in 2025: Add additional rows as needed May 12, 2026 Item #10 Page 184 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Treatment Level Drop down list Volume (AF)Treatment Level Drop down list Volume (AF)Treatment Level Drop down list Volume (AF)Treatment Level Drop down list Volume (AF)Treatment Level Drop down list Volume (AF)Name of other entity Encina Water Pollution Control Facility, Place ID 222758 Yes 7906 28,047 Secondary, Undisinfected - Tertiary 6,418 Secondary, Undisinfected 21,629 0 Tertiary 5751 Carlsbad WRF Gafner WRF Carlsbad WRF, Place ID 213270 No 0 5,356 Tertiary 3,683 Tertiary 25.3 0 0 0 Gafner Water Reclamation Facility, Place ID 226637 No 0 413 Tertiary 251 Tertiary - Secondary, Undisinfected 162 0 0 Vallecitos WD Meadowlark WRP, Place ID 269989 No 0 - Tertiary - Tertiary - Secondary, Undisinfected 0 0 0 7,906 33,816 3,934 6,443 21,791 0 5,751 2025 Outcomes of Treated Wastewater Check the box if no wastewater is treated or disposed of within the UWMP service area. Proceed to the next table. Does This Plant Treat Wastewater Generated Outside the UWMP Service Area? (OPTIONAL) Drop down list Wastewater Treatment Plant Name and Place ID Number Drop down list Total 2025 Volume of Water Treated (AF) NOTES: Meadowlark WRF has been non-operational since December 2024, but is expected to resume operations summer 2026. Total 2025 Volume of Wastewater Received from UWMP Service Area (As Reported in Submittal Table 6-2 R) (AF) Water Recycled Within UWMP Service Area(enter data as applicable) Submittal Table 6-3 Retail: Wastewater Treatment and Outcomes Within UWMP Service AreaWater Code Section 10633(b) DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. IPR: Indirect Potable Reuse would have the treatment level of its end use requirement in the Level of Treatment drop-down.Additional Guidance: See Appendix M, Section M.21 for detailed guidance on this table. Water Recycled Outside of UWMP Service Area (enter data as applicable) Effluent Discharge that is not a Permitted Recycled Water Use (enter data as applicable) Required Discharge for Instream Flow(enter data as applicable) Delivered to Another Entity for Additional Treatment(enter data as applicable) Add additional rows as needed May 12, 2026 Item #10 Page 185 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Volume Narrative page number (OPTIONAL) Landscape irrigation (exc golf courses)Non-Potable Commercial property irrigation, community facilities, highways, HOAs, resort property irrigation, parks, and schools 2,872 3062 3382 3382 3382 3382 0 Golf course irrigation Golf Course irrigation 808 808 808 808 808 808 0 Commercial use Cooling 0 0 0 0 0 0 0 Industrial use NRG Power Plant 28 28 28 28 28 28 0 0 0 0 0 0 0 0 2,872 3,062 3,382 3,382 3,382 3,382 0 3708 3898 4218 4218 4218 4218 0 Check box if recycled water is not used and is not planned for use within the service area of the supplier. The supplier will only complete the column on "Potential Recycled Water Use" and submit an accompanying narrative on the feasibility of that potential recycled water use. Submittal Table 6-4 Retail: Recycled Water Direct Beneficial Uses Within Service AreaWater Code Section 10633 (c),(d),(e) Potential Recycled Water Use Name(s) of Facility/ies Producing (Treating) the Recycled Water (OPTIONAL) :Carlsbad WRF, Meadowlark WRP, Gafner WRF Name of Supplier Operating the Recycled Water Distribution System (OPTIONAL) :Carlsbad Municipal Water District 0 AFYVolume of Supplemental Water Added in 2025 (OPTIONAL) : N/ASource of 2025 Supplemental Water (OPTIONAL) : Total Use TypeDrop down list Potable or Non-Potable(after treatment if treated)(OPTIONAL)Drop down list Additional Information (as needed) Add additional rows as needed DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. Additional Guidance: See Appendix M, Section M.21 for detailed guidance on this table. Potential recycled water use: a description of the feasibility of these uses must be included in the narrative. Multiple Producers: If you have multiple recycled water producers, submit a separate table for each. NOTES: 2050 (AF)2025 (AF)2030 (AF)2035 (AF)2040 (AF)2045 (AF) Subtotal Potable Subtotal Non-Potable May 12, 2026 Item #10 Page 186 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2020 Projection for 2025 (AF) 2025 Actual Use (AF) 3,493 2,872 725 808 0 0 0 28 4,218 3,708 Seawater intrusion barrier Groundwater recharge (IPR) Reservoir water augmentation (IPR) NOTES: Total DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure reported in Submittal Table 2-3 Additional Guidance: See Appendix M, Section M.21 for detailed guidance on this table. Direct potable reuse (DPR) Other (Description Required) Recreational impoundment Wetlands or wildlife habitat Industrial use Geothermal and other energy production Landscape irrigation (exc golf courses) Golf course irrigation Commercial use Submittal Table 6-5 Retail: 2020 UWMP Recycled Water Use Projection Compared to 2025 Actual Water Code Section 10633(e) Check the box if recycled water was not used in 2025 nor previously projected for use in 2020. Proceed to the next table. Add additional rows as needed Agricultural irrigation Use Type Drop Down list May 12, 2026 Item #10 Page 187 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Name of Action Description Expected Increase in Recycled Water Use (AF) 0 0 Total (AF) DWR NOTES: Units of measure (AF, CCF, MG) MUST remain consistent with units reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. The unit conversion to Acre Feet addresses the Water Code's requirement that this value be provided in acre-feet. NOTES: Submittal Table 6-6 Retail: Methods to Encourage Future Recycled Water Use Water Code Section 10633(f) Check the box if the Supplier does not plan to expand recycled water use in the future. Supplier will not complete the table below but will provide narrative explanation. Provide page location of narrative in the UWMP Add additional rows as needed Unit Conversion to AF Planned Implementation Year May 12, 2026 Item #10 Page 188 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 N/A Drop Down List (yes/no)If Yes, Supplier Name Groundwater Supply No Development of groundwater supplies Average Year Unknown at this time NSDWRC Regional Project Yes Leucadia Wastewater District, Vallecitos Water District, City of Oceanside, City of Escondido, Olivenhain Municipal Water District, Rincon del Diablo Municipal Water District, San Elijo Joint Powers Authority, Santa Fe Irrigation District, and Vista Irrigation District Regional recycled water project Average Year Supports implementation of Phase III recycled water project Planned for Use in Year TypeDrop Down List NOTES: Submittal Table 6-7 Retail: Expected Future Water Supply Projects or ProgramsWater Code Section 10631(f) DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure reported in Submittal Table 2-3. Check the box if some or all of the supplier's future water supply projects or programs are not compatible with this table and are described in a narrative format. Check the box if there are no expected future water supply projects or programs that provide a quantifiable increase to the agency's water supply.Proceed to the next table. Planned Implementation Year Add additional rows as needed Joint Project with other suppliers? Expected Increase in Water Supply to Supplier(This may be a range) (AF) Provide page location of narrative in the UWMP Name of Future Projects or Programs Additional Description (as needed) Potable or Non-Potable (after treatment if treated)(OPTIONAL) Drop Down list May 12, 2026 Item #10 Page 189 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Water Supply Drop down list May use each category multiple times. These are the only water supply categories that will be recognized by the WUEdata online submittal tool Potable or Non-Potable (after treatment if treated) (OPTIONAL) Drop Down list Actual Volume (AF) Total Entitlement (OPTIONAL) See 'DWR Notes' below (AF) Purchased or Imported Water Purchased from SDCWA Potable 11,962 11,962 Purchased or Imported Water Desal; Purchased from SDCWA Potable 2,500 2,500 Recycled Water Carlsbad WRF Non-Potable 3,708 7,839 Recycled Water Meadowlark WRF Non-Potable 0 2,700 14,462 14,462 3,708 10,539 18,170 25,001 Submittal Table 6-8 Retail: Water Supplies — Actual Water Code Section 10631(b) 2025 NOTES: DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table identifies the unit of measure selected in Submittal Table 2-3. Total Entitlement: e.g. Water Right, Groundwater Allocation, Contracted Amount. Add additional rows as needed Total Subtotal Potable Subtotal Non-Potable Additional Description (as needed) May 12, 2026 Item #10 Page 190 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2021 (AF)2022 (AF)2023 (AF)2024 (AF)2025 (AF) Carlsbad Seawater Desalination Facility 56000 Open-water intake (screened or unscreened)Seawater .015 ntu Brine Line 2500 2500 2500 2500 2500 2500 2500 2500 2500 2500Total NOTES: Optional Table 6-8DS: Source Water Desalination by Urban Water Supplier Check the box if the Supplier does not reduce salinity in either groundwater or surface water prior to distribution. Volume of Water Desalinated DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submital Table 2-3. This table identifies the units of measure reported in Submittal Table 2-3. Add additional rows as needed Desalination FacilityDrop Down list Plant Capacity Intake TypeDrop down list Source Water TypeDrop down list Influent TDS Brine DischargeDrop down list Name(s) of Agencies that Receive this Water May 12, 2026 Item #10 Page 191 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Water Supply Reasonably Available Volume (AF) Total Entitlement (OPTIONAL)See 'DWR Notes' below (AF) Reasonably Available Volume (AF) Total Entitlement (OPTIONAL)See 'DWR Notes' below (AF) Reasonably Available Volume (AF) Total Entitlement (OPTIONAL)See 'DWR Notes' below (AF) Reasonably Available Volume (AF) Total Entitlement (OPTIONAL)See 'DWR Notes' below (AF) Reasonably Available Volume (AF) Total Entitlement (OPTIONAL)See 'DWR Notes' below (AF) Purchased or Imported Water Purchased from SDCWA Potable 12,415 12,415 13,674 13,674 13,763 13,763 13,868 13,868 13,987 13,987 Recycled Water Carlsbad WRF Non-Potable 1198 7,839 1518 7,839 1518 7,839 1518 7,839 1518 7,839 Recycled Water Meadowlark WRF Non-Potable 2700 2,700 2700 2,700 2700 2,700 2700 2,700 2700 2,700 Desalinated Water - Surface Water Carlsbad Desalination Plant (purchased under Take or Pay with SDCWA) Potable 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 14,915 14,915 16,174 16,174 16,263 16,263 16,368 16,368 16,487 16,4873,898 10,539 4,218 10,539 4,218 10,539 4,218 10,539 4,218 10,53918,813 25,454 20,392 26,713 20,481 26,802 20,586 26,907 20,705 27,026 2050 (opt) Add additional rows as needed Total NOTES: CMWD is currently negotiating an agreement that would allow it to receive 2,700 AFY of recycled water from Meadowlark in future years. CMWD receives 2,500 AFY desalinated water through a purchase agreement with SDCWA. If the plant produces more desalinated water and SDCWA purchases more than the 48,000 AFY that it currently purchases, CMWD may receive an additional 5.21% of the additional amount available. Because of uncertainty regarding this water, it has been omitted from this table as an available volume. Purchases from SDCWA are not limited by Total Right or Safe Yield. 2030 2035 2040 2045 Subtotal Non-Potable Subtotal Potable DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. Total Entitlement: e.g. Water Right, Groundwater Allocation, Contracted Amount. Submittal Table 6-9 Retail: Water Supplies — Projected Water Code Section 10631 (b) Projected Water Supply (Report to the Extent Practicable) Drop down listMay use each category multiple times. These are the only water supply categories that will be recognized by the WUEdata online submittal tool Additional Detail on Water Supply Potable or Non-Potable(after treatment if treated)(OPTIONAL)Drop Down list May 12, 2026 Item #10 Page 192 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 % of Average Supply Average Year 1991-2020 100% Single-Dry Year 2013, 2018, 2021 106% Consecutive Dry Years 1st Year 2011 107% Consecutive Dry Years 2nd Year 2012 108% Consecutive Dry Years 3rd Year 2013 109% Consecutive Dry Years 4th Year 2014 110% Consecutive Dry Years 5th Year 2015 111% 21530 21737 NOTES: CMWD selected base years that aligned with SDCWA’s 2025 UWMP supply reliability assessment. SDCWA supplies are expected to be reliable through all years of a multiple year drought, with additional carryover supplies available in extended dry periods. As presented here, “% of Average Supply” indicates percent supply available to meet both potable and non-potable demands due to diversification and/or carryover storage. 21943 22152 22365 DWR NOTES: Supplier may use multiple versions of Submittal Table 7-1 R if different water sources have different base years and the supplier chooses to report the base years for each water source separately. If a Supplier uses multiple versions of Submittal Table 7-1 R, in the "Note" section of each submittal table, state that multiple versions of Submittal Table 7-1 R are being used and identify the particular water source that is being reported in each submittal table. Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. This table reports the units of measure reported in Submittal Table 2-3. 20195 21461 Year Type Base Year If not using a calendar year, type in the last year of the fiscal, water year, or range of years, for example, water year 2024- 2025, use 2025 Optional Submittal Table 7-1 Retail: Basis of Water Year Data (Reliability Assessment) Available Supplies if Year Type Repeats Check the box if quantification of available supplies is not compatible with this table and is provided elsewhere in the UWMP. Location: [insert location from UWMP] Volume Available (AF) Quantification of available supplies is provided in this table as either volume only, percent only, or both. May 12, 2026 Item #10 Page 193 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2030 (AF)2035 (AF)2040 (AF)2045 (AF)2050 (AF) Supply totals(autofill from Submittal Table 6-9 R) 18,813 20,392 20,481 20,586 20,705 2030 (AF)2035 (AF)2040 (AF)2045 (AF)2050 (AF)2030 (AF)2035 (AF)2040 (AF)2045 (AF)2050 (AF) Use totals(autofill from Submittal Table 4-2 R)18,813 20,392 20,481 20,586 20,705 Supply totals(autofill from Submittal Table 6-9 R)14,915 16,174 16,263 16,368 16,487 Supply totals(autofill from Submittal Table 6-9 R)3,898 4,218 4,218 4,218 4,218 Surplus/(shortfall)0 0 0 0 0 Use totals(autofill from Submittal Table 4-2 R)14,915 16,174 16,263 16,368 16,487 Use totals(autofill from Submittal Table 4-2 R)3,898 4,218 4,218 4,218 4,218 Surplus/(shortfall)0 0 0 0 0 Surplus/(shortfall)0 0 0 0 0 WSCP - supply augmentation benefit WSCP - use reduction savings benefit WSCP - supply augmentation benefit WSCP - supply augmentation benefit Revised Surplus/(shortfall)WSCP - use reduction savings benefit WSCP - use reduction savings benefit Revised Surplus/(shortfall)Revised Surplus/(shortfall) OPTIONAL Planned WSCP Actions Submittal Table 7-2 Retail: Normal Year Supply and Use ComparisonWater Code Section 10635 (a) NOTES: DWR NOTES : Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. OPTIONAL Submittal Table 7-2 Retail: Normal Year Supply and Use Comparison - POTABLE OPTIONAL Planned WSCP Actions NOTES: OPTIONAL Submittal Table 7-2 Retail: Normal Year Supply and Use Comparison - NON-POTABLE OPTIONAL Planned WSCP Actions NOTES: May 12, 2026 Item #10 Page 194 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Supply totals 19,992 21,670 21,764 21,876 22,002 Use totals 19,992 21,670 21,764 21,876 22,002 Supply totals 15,850 17,187 17,282 17,394 17,520 Supply totals 4,142 4,482 4,482 4,482 4,482 Surplus/(shortfall)0 0 0 0 0 Use totals 15,850 17,187 17,282 17,394 17,520 Use totals 4,142 4,482 4,482 4,482 4,482 Surplus/(shortfall)0 0 0 0 0 Surplus/(shortfall)0 0 0 0 0 WSCP - supply augmentation benefit WSCP - use reduction savings benefit WSCP - supply augmentation benefit WSCP - supply augmentation benefit Revised Surplus/(shortfall)WSCP - use reduction savings benefit WSCP - use reduction savings benefit Revised Surplus/(shortfall)Revised Surplus/(shortfall) Submittal Table 7-3 Retail: Single Dry Year Supply and Use ComparisonWater Code Section 10635(a) OPTIONAL Planned WSCP Actions OPTIONAL Submittal Table 7-3 Retail: Single Dry Year Supply and Use Comparison - POTABLE OPTIONAL Planned WSCP Actions OPTIONAL Submittal Table 7-3 Retail: Single Dry Year Supply and Use Comparison - NON-POTABLE OPTIONAL Planned WSCP Actions 2030 (AF) 2030 (AF)2030 (AF) 2035 (AF)2040 (AF)2045 (AF) DWR NOTES : Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. NOTES DWR NOTES : Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. NOTES DWR NOTES : Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. NOTES 2035 (AF)2040 (AF)2045 (AF)2050 (AF) 2050 (AF) 2035 (AF)2040 (AF)2045 (AF)2050 (AF) May 12, 2026 Item #10 Page 195 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2030 (AF)2035 (AF)2040 (AF)2045 (AF)2050 (AF) Supply totals 20,057 21,740 21,835 21,947 22,074 2030 (AF)2035 (AF)2040 (AF)2045 (AF)2050 (AF)2030 (AF)2035 (AF)2040 (AF)2045 (AF)2050 (AF)Use totals 20,057 21,740 21,835 21,947 22,074 Supply totals 15,901 17,243 17,338 17,450 17,577 Supply totals 4,156 4,497 4,497 4,497 4,497 Surplus/(shortfall)0 0 0 0 0 Use totals 15,901 17,243 17,338 17,450 17,577 Use totals 4,156 4,497 4,497 4,497 4,497 Surplus/(shortfall)0 0 0 0 0 Surplus/(shortfall)0 0 0 0 0 WSCP - supply augmentation benefitWSCP - use reduction savings benefit WSCP - supply augmentation benefit WSCP - supply augmentation benefitRevised Surplus/(shortfall)WSCP - use reduction savings benefit WSCP - use reduction savings benefitSupply totals 20,249 21,949 22,045 22,158 22,286 Revised Surplus/(shortfall)Revised Surplus/(shortfall)Use totals 20,249 21,949 22,045 22,158 22,286 Supply totals 16,054 17,409 17,505 17,618 17,746 Supply totals 4,196 4,540 4,540 4,540 4,540 Surplus/(shortfall)0 0 0 0 0 Use totals 16,054 17,409 17,505 17,618 17,746 Use totals 4,196 4,540 4,540 4,540 4,540 Surplus/(shortfall)0 0 0 0 0 Surplus/(shortfall)0 0 0 0 0 WSCP - supply augmentation benefitWSCP - use reduction savings benefit WSCP - supply augmentation benefit WSCP - supply augmentation benefitRevised Surplus/(shortfall)WSCP - use reduction savings benefit WSCP - use reduction savings benefitSupply totals 20,441 22,157 22,254 22,368 22,497 Revised Surplus/(shortfall)Revised Surplus/(shortfall)Use totals 20,441 22,157 22,254 22,368 22,497 Supply totals 16,206 17,574 17,671 17,785 17,914 Supply totals 4,235 4,583 4,583 4,583 4,583 Surplus/(shortfall)0 0 0 0 0 Use totals 16,206 17,574 17,671 17,785 17,914 Use totals 4,235 4,583 4,583 4,583 4,583 Surplus/(shortfall)0 0 0 0 0 Surplus/(shortfall)0 0 0 0 0 WSCP - supply augmentation benefitWSCP - use reduction savings benefit WSCP - supply augmentation benefit WSCP - supply augmentation benefitRevised Surplus/(shortfall)WSCP - use reduction savings benefit WSCP - use reduction savings benefitSupply totals 20,636 22,368 22,466 22,581 22,711 Revised Surplus/(shortfall)Revised Surplus/(shortfall)Use totals 20,636 22,368 22,466 22,581 22,711 Supply totals 16,360 17,741 17,839 17,954 18,085 Supply totals 4,276 4,627 4,627 4,627 4,627 Surplus/(shortfall)0 0 0 0 0 Use totals 16,360 17,741 17,839 17,954 18,085 Use totals 4,276 4,627 4,627 4,627 4,627 Surplus/(shortfall)0 0 0 0 0 Surplus/(shortfall)0 0 0 0 0 WSCP - supply augmentation benefitWSCP - use reduction savings benefit WSCP - supply augmentation benefit WSCP - supply augmentation benefitRevised Surplus/(shortfall)WSCP - use reduction savings benefit WSCP - use reduction savings benefitSupply totals 20,834 22,583 22,681 22,798 22,929 Revised Surplus/(shortfall)Revised Surplus/(shortfall)Use totals 20,834 22,583 22,681 22,798 22,929 Supply totals 16,517 17,912 18,010 18,126 18,258 Supply totals 4,317 4,671 4,671 4,671 4,671 Surplus/(shortfall)0 0 0 0 0 Use totals 16,517 17,912 18,010 18,126 18,258 Use totals 4,317 4,671 4,671 4,671 4,671 Surplus/(shortfall)0 0 0 0 0 Surplus/(shortfall)0 0 0 0 0 WSCP - supply augmentation benefitWSCP - use reduction savings benefit WSCP - supply augmentation benefit WSCP - supply augmentation benefitRevised Surplus/(shortfall)WSCP - use reduction savings benefit WSCP - use reduction savings benefit Revised Surplus/(shortfall)Revised Surplus/(shortfall)NOTES: OPTIONAL Submittal Table 7-4 Retail: Multiple Dry Years Supply and Use Comparison - POTABLE First year OPTIONAL Planned WSCP ActionsFirst year Second year OPTIONAL WSCP Actions Third year OPTIONAL Planned WSCP Actions Fourth year OPTIONAL Planned WSCP Actions Fifth year OPTIONAL Planned WSCP Actions OPTIONAL WSCP Actions Second year Third year Fifth year DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. OPTIONAL Planned WSCP Actions OPTIONAL Planned WSCP Actions OPTIONAL Planned WSCP ActionsFourth year Submittal Table 7-4 Retail: Multiple Dry Years Supply and Use ComparisonWater Code Section 10635(a) OPTIONAL Planned WSCP Actions OPTIONAL Submittal Table 7-4 Retail: Multiple Dry Years Supply and Use Comparison - NON-POTABLE First year OPTIONAL Planned WSCP Actions DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. NOTES: Second year OPTIONAL WSCP Actions DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. NOTES: Third year OPTIONAL Planned WSCP Actions Fourth year OPTIONAL Planned WSCP Actions Fifth year OPTIONAL Planned WSCP Actions May 12, 2026 Item #10 Page 196 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2026 Total Total Water Use (AF)19,805 2026 Total 2026 TotalTotal Supplies (AF)19,805 Total Water Use (AF)15,764 Total Water Use (AF)4,042 Surplus/Shortfall w/o WSCP Action 0 Total Supplies (AF)15,764 Total Supplies (AF)4,042 Surplus/Shortfall w/o WSCP Action 0 Surplus/Shortfall w/o WSCP Action 0 WSCP - supply augmentation benefit (AF)WSCP - use reduction savings benefit (AF)WSCP - supply augmentation benefit (AF)WSCP - supply augmentation benefit (AF)Revised Surplus/(shortfall)WSCP - use reduction savings benefit (AF)WSCP - use reduction savings benefit (AF) 2027 Total Revised Surplus/(shortfall)Revised Surplus/(shortfall) Total Water Use (AF)19,805 2027 Total 2027 Total Total Supplies (AF)19,805 Total Water Use (AF)15,764 Total Water Use (AF)4,042 Surplus/Shortfall w/o WSCP Action 0 Total Supplies (AF)15,764 Total Supplies (AF)4,042 Surplus/Shortfall w/o WSCP Action 0 Surplus/Shortfall w/o WSCP Action 0 WSCP - supply augmentation benefit (AF) WSCP - use reduction savings benefit (AF)WSCP - supply augmentation benefit (AF)WSCP - supply augmentation benefit (AF) Revised Surplus/(shortfall)WSCP - use reduction savings benefit (AF)WSCP - use reduction savings benefit (AF) 2028 Total Revised Surplus/(shortfall)Revised Surplus/(shortfall) Total Water Use (AF)20,169 2028 Total 2028 Total Total Supplies (AF)20,169 Total Water Use (AF)16,053 Total Water Use (AF)4,116 Surplus/Shortfall w/o WSCP Action 0 Total Supplies (AF)16,053 Total Supplies (AF)4,116 Surplus/Shortfall w/o WSCP Action 0 Surplus/Shortfall w/o WSCP Action 0 WSCP - supply augmentation benefit (AF)WSCP - use reduction savings benefit (AF)WSCP - supply augmentation benefit (AF)WSCP - supply augmentation benefit (AF)Revised Surplus/(shortfall)WSCP - use reduction savings benefit (AF)WSCP - use reduction savings benefit (AF) 2029 Total Revised Surplus/(shortfall)Revised Surplus/(shortfall) Total Water Use (AF)20,714 2029 Total 2029 TotalTotal Supplies (AF)20,714 Total Water Use (AF)16,487 Total Water Use (AF)4,227 Surplus/Shortfall w/o WSCP Action 0 Total Supplies (AF)16,487 Total Supplies (AF)4,227 Surplus/Shortfall w/o WSCP Action 0 Surplus/Shortfall w/o WSCP Action 0 WSCP - supply augmentation benefit (AF)WSCP - use reduction savings benefit (AF)WSCP - supply augmentation benefit (AF)WSCP - supply augmentation benefit (AF)Revised Surplus/(shortfall)WSCP - use reduction savings benefit (AF)WSCP - use reduction savings benefit (AF)2030 Total Revised Surplus/(shortfall)Revised Surplus/(shortfall) Total Water Use (AF)21,077 2030 Total 2030 TotalTotal Supplies (AF)21,077 Total Water Use (AF)16,776 Total Water Use (AF)4,301 Surplus/Shortfall w/o WSCP Action 0 Total Supplies (AF)16,776 Total Supplies (AF)4,301 Surplus/Shortfall w/o WSCP Action 0 Surplus/Shortfall w/o WSCP Action 0 WSCP - supply augmentation benefit (AF) WSCP - use reduction savings benefit (AF)WSCP - supply augmentation benefit (AF)WSCP - supply augmentation benefit (AF)Revised Surplus/(shortfall)WSCP - use reduction savings benefit (AF)WSCP - use reduction savings benefit (AF) Revised Surplus/(shortfall)Revised Surplus/(shortfall) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. NOTES: OPTIONAL Submittal Table 7-5 Retail: Five-Year Drought Risk Assessment - POTABLE OPTIONAL Submittal Table 7-5 Retail: Five-Year Drought Risk Assessment - NON-POTABLE OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. NOTES: OPTIONAL Planned WSCP Actions (use reduction and supply augmentation)OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) NOTES: DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. Submittal Table 7-5 Retail: Five-Year Drought Risk Assessment Water Code Section 10635(b)(3) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) OPTIONAL Planned WSCP Actions (use reduction and supply augmentation) May 12, 2026 Item #10 Page 197 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Standard Shortage Levels Percent Shortage Range Suppliers Shortage Levels Percent Shortage Range 1 Up to 10%1 ≤10% 2 Up to 20%2 10 – 20% 3 Up to 30%3 20 – 30% 4 Up to 40%4 30 – 40% 5 Up to 50%5 40 – 50% 6 >50%6 ≥50% Submittal Table 8-1: Cross-reference for Standard vs Supplier Shortage Levels Water Code Section 10632(a)(3)(B) Check the box if the Supplier uses the Standard six levels of water shortage. Proceed to the next table. NOTES: May 12, 2026 Item #10 Page 198 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Volume or Percentage Drop down Shortage Gap Reduction Value (May be a range) (AF) 5 Stored Emergency Supply Percentage 9%Maerkle Reservoir holds a maximum 600AF. 6 Transfers Percentage 10%City of Oceanside, Vallecitos Water District, and SDCWA would be a potential source. Submittal Table 8-2 Retail: Supply Augmentation and Other Actions Water Code Section 10632(a)(4)(A),(C) and (E) Add additional rows as needed NOTES: Is the Supplier completing this table using the standard six levels? (yes/no) How much is this going to reduce the shortage gap? DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. Shortage Level Supply Augmentation Methods and Other Actions by Water Supplier Drop down list These are the only categories that will be accepted by the WUEdata online submittal tool Additional Explanation or Reference (OPTIONAL) May 12, 2026 Item #10 Page 199 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Yes Volume or Percentage Drop down Shortage Gap Reduction Value (May be a range) (AF) 0 Other - Prohibit use of potable water for washing hard surfaces Percentage 0.8%No washing down paved surfaces No 0 Landscape - Restrict or prohibit runoff from landscape irrigation Percentage 0.1% No runoff/overspray No 0 Water Features - Restrict water use for decorative water features, such as fountains Percentage 1.4%Recirculating fountains only No 0 CII - Restaurants may only serve water upon request Percentage 0.2%Restaurant water upon request No 0 CII - Lodging establishment must offer opt out of linen service Percentage 0.2%Hotel laundry upon request No 0 Other - Prohibit use of potable water for construction and dust control Percentage 0.0%Non-potable water for construction purposes when available No 1 Landscape - Limit landscape irrigation to specific times Percentage 6.9%Irrigate residential and commercial landscape before 10 a.m. and after 6 p.m.No 1 CII - Other CII restriction or prohibition Percentage 0.2%Irrigate nursery and commercial grower's products before 10 a.m. and after 6 p.m.No 1 Other - Customers must repair leaks, breaks, and malfunctions in a timely manner Percentage 0.8%Repair leaks within 5 days of notification No 1 Expand Public Information Campaign Percentage 4.6% CMWD increased public education and outreach efforts to emphasize increased public awareness of the need to implement water conservation practices. No 1 Provide Rebates for Landscape Irrigation Efficiency Percentage 4.3%Ongoing programs.No 2 Landscape - Limit landscape irrigation to specific days Percentage 6.9%Water limited to days assigned by CMWD (3 days/week)Yes 2 Landscape - Other landscape restriction or prohibition Percentage 3.1% Limit lawn watering and landscape irrigation to 10 minutes unless using water efficient device Yes 2 Landscape - Other landscape restriction or prohibition Percentage 1.1%Use shut-off nozzle, bucket, or low-flow spray for irrigating areas not irrigated by irrigation system Yes 2 Other - Customers must repair leaks, breaks, and malfunctions in a timely manner Percentage 0.8%Repair within 72 hours of notification Yes 3 Landscape - Limit landscape irrigation to specific days Percentage 6.6%Water limited to days assigned by CMWD (2 days/week)Yes 3 Other - Prohibit vehicle washing except at facilities using recycled or recirculating water Percentage 0.6%No vehicle washing except at facilities that recirculate water or use high pressure/ low volume Yes 3 Other Percentage 1.7%Suspension of consideration of annexations to CMWD service area. Variable to meet conservation need. Yes 3 Other Percentage 1.0% Establish a water allocation for property served by CMWD Flexible depending on other actions; adjust to meet 30% reduction. Variable to meet conservation need. Yes 3 Other - Customers must repair leaks, breaks, and malfunctions in a timely manner Percentage 1.7%Repair within 48 hours of notification Yes 4 Water Features - Restrict water use for decorative water features, such as fountains Percentage 2.6%Stop filing or re-filling ornamental lakes or ponds, except to the extent needed to sustain aquatic life Yes 5 Landscape - Prohibit certain types of landscape irrigation Percentage 15.9% No landscape irrigation unless recycled water may be lawfully applied, with exceptions for trees & shrubs using low-volume irrigation; specific necessary landscaping. Yes 5 Moratorium or Net Zero Demand Increase on New Connections Percentage 2.9% No new potable water service shall be provided, no new temporary meters or permanent meters shall be provided, and no statements of immediate ability to serve or provide potable water service shall be issued, with the exception of the circumstances listed in the Drought Ordinance. Yes 5 Other - Customers must repair leaks, breaks, and malfunctions in a timely manner Percentage 3.4%Repair within 24 hours of notification Yes 6 Landscape - Prohibit all landscape irrigation Percentage 16.4%No landscape irrigation unless recycled water may be lawfully applied, with exceptions for specific necessary landscaping Yes Shortage Level Demand Reduction Actions Drop down list These are the only categories that will be accepted by the WUEdata online submittal tool. Select those that apply. Additional Explanation or Reference (OPTIONAL) NOTES: Penalty, Charge, or Other Enforcement? For Retail Suppliers Only Drop Down List DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3. Is the Supplier completing this table using the standard six levels? (yes/no) Submittal Table 8-3 Retail: Demand Reduction Actions Water Code Section 10632(a)(4)(B),(D), and (E) Add additional rows as needed How much is this going to reduce the shortage gap? May 12, 2026 Item #10 Page 200 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 City Name 60 Day Notice Drop Down (yes/no) Notice of Public Hearing Drop Down (yes/no) City of Carlsbad Yes Yes County Name Drop Down List 60 Day Notice Drop Down (yes/no) Notice of Public Hearing Drop Down (yes/no) San Diego County Yes Yes Submittal Table 10-1 Retail: Notification to Cities and Counties Water Code Section 10621(b) and 10642 Add additional rows as needed Add additional rows as needed NOTES: May 12, 2026 Item #10 Page 201 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX E: CITY OF CARLSBAD CLIMATE CHANGE VULNERABILITY ASSESSMENT May 12, 2026 Item #10 Page 202 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 May 12, 2026 Item #10 Page 203 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 May 12, 2026 Item #10 Page 204 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ta b l e o f C o n t e n t s Pu b l i c S a f e t y E l e m e n t U p d a t e i Ta b l e o f Co n t e n t s Ex e c u t i v e S u m m a r y .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 1 Re p o r t O r g a n i z a t i o n .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 2 Po p u l a t i o n s , A s s e t s , a n d S e r v i c e s a t R i s k .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 2 Ad a p t i v e C a p a c i t y .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 3 Vu l n e r a b i l i t y A n a l y s i s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Ke y F i n d i n g s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 6 1 In t r o d u c t i o n .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 7 1. 1 Ba c k g r o u n d o n C l i m a t e C h a n g e .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 7 1. 2 Ca r l s b a d S n a p s h o t .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . 7 1. 3 Le x i c o n .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 8 1. 4 Vu l n e r a b i l i t y A s s e s s m e n t M e t h o d o l o g y .. . . . . . . . . . . . . . . . . . . . . . . 9 2 Ex p o s u r e t o C l i m a t e H a z a r d s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 15 2. 1 Cl i m a t e D r i v e r s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2. 2 Ha z a r d s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 16 3 Se n s i t i v i t y .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 27 3. 1 Vu l n e r a b l e Po p u l a t i o n s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 27 3. 2 Na t u r a l a n d R e c r e a t i o n a l R e s o u r c e s .. . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3. 3 Bu i l d i n g s a n d F a c i l i t i e s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 29 3. 4 In f r a s t r u c t u r e a n d C r i t i c a l S e r v i c e s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4 Ad a p t i v e C a p a c i t y .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 31 4. 1 Ex t r e m e H e a t a n d W a r m N i g h t s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 31 4. 2 Ri v e r i n e & S t o r m w a t e r F l o o d i n g , D r o u g h t s , & S e a L e v e l Ri s e .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 32 4. 3 Wi l d f i r e s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 34 4. 4 Mu l t i p l e C l i m a t e H a z a r d s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 35 5 Vu l n e r a b i l i t y A n a l y s i s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 5. 1 Vu l n e r a b l e P o p u l a t i o n s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 37 5. 2 Na t u r a l a n d R e c r e a t i o n a l R e s o u r c e s .. . . . . . . . . . . . . . . . . . . . . . . . . . . 43 5. 3 Bu i l d i n g s a n d F a c i l i t i e s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 46 5. 4 In f r a s t r u c t u r e a n d C r i t i c a l S e r v i c e s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 6 Co n c l u s i o n .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 51 7 Re f e r e n c e s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 54 Ta b l e s Ta b l e 1 Im p a c t a n d A d a p t i v e C a p a c i t y S c o r i n g R u b r i c .. . . . . . . . . . . . . 14 Ta b l e 2 Vu l n e r a b i l i t y S c o r e M a t r i x .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 14 Ta b l e 3 Vu l n e r a b l e P o p u l a t i o n s i n C a r ls b a d .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Ta b l e 4 Pr o g r a m , P l a n s , a n d P o l i c i e s t o M a n a g e I m p a c t s o f Ex t r e m e H e a t a n d W a r m Ni g h t s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . 31 Ta b l e 5 Pr o g r a m s , P l a n s , a n d P o l i c i e s t o M a n a g e R i v e r i n e a n d St o r m w a t e r F l o o d i n g , D r o u g ht s , a n d S e a L e v e l R i s e I m p a c t s .. 32 Ta b l e 6 Pr o g r a m s , P l a n s , a n d P o l i c i e s t o M a n a g e W i l d f i r e Im p a ct s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . 34 Ta b l e 7 Pr o g r a m s , P l a n s , a n d P o l i c i e s t o M a n a g e M u l t i p l e Cl i m a t e H a z a r d I m p a c t s .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . 35 Tab l e 8 Ci t y -Wi d e S e a L e v e l R i s e V u l n e r a b i l i t y S u m m a r y .. . . . . . . . 44 Fi g u r e s Fi g u r e 1 Vu l n e r a b i l i t y A s s e s s m e n t F l o w D i a g r a m .. . . . . . . . . . . . . . . . . . . . . 10 Fi g u r e 2 Wi l d f i r e H a z a r d S e v e r i t y Z o n e s i n C a r l s b a d .. . . . . . . . . . . . . . . . 20 Fi g u r e 3 10 0 a n d 5 0 0 Y e a r F l o o d p l a i n i n C a r l s b a d .. . . . . . . . . . . . . . . . . . . . 23 Fi g u r e 4 Se a L e v e l R i s e i n C a r l s b a d T h r o u g h 2 0 5 0 a n d 2 1 0 0 .. . . . 26 May 12, 2026 Item #10 Page 205 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t ii Th i s p a g e i n t e n t i o n a l l y l e f t b l a n k . May 12, 2026 Item #10 Page 206 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex e c u t i v e S u m m a r y Pu b l i c S a f e t y E l e m e n t U p d a t e 1 Ex e c u t i v e S u m m a r y Th e Ci t y o f C a r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t ev a l u a t e s h o w c l i m a t e c h a n g e m a y i m p a c t v u l n e r a b l e c o m m u n i t y me m b e r s , n a t u r a l r e s o u r c e s , c r i t i c a l f a c i l i t i e s , b u i l d i n g s , s e r v i c e s , an d i n f r a s t r u c t u r e i n C a r l s b a d . Th i s r e p o r t w i l l i n f o r m C a r l s b a d o f po t e n t i a l c l i m a t e c h a n g e i m p a c t s a n d h e l p p r e p a r e t h e r e q u i r e d cl i m a t e a d a p t a t i o n g o a l s , p o l i c i e s , a n d i m p l e m e n t a t i o n p r o g r a m s f o r th e P u b l i c S a f e t y E l e m e n t a s p a r t o f t h e C i t y ’ s G e n e r a l P l a n U p d a t e . Cl i m at e c h a n g e i s a g l o b a l p h e n o m e n o n t h a t c a n i m p a c t l o c a l he a l t h , n a t u r a l r e s o u r c e s , i n f r a s t r u c t u r e , e m e r g e n c y r e s p o n s e , a n d ma n y o t h e r a s p e c t s o f s o c i e t y t h r o u g h c h a n g e s i n c l i m a t e co n d i t i o n s . I n C a r l s b a d , t e m p e r a t u r e a n d p r e c i p i t a t i o n a r e e x p e c t e d to c h a n g e i n t h e f o l l o w i n g w a y s : ▪ In c r e a s i n g t e m p e r a t u r e s . Av e r a g e m a x i m u m t e m p e r a t u r e s i n Ca r l s b a d ar e e x p e c t e d t o r i s e b e t w e e n 3.2° F a h r e n h e i t ( F ) a n d 4.0°F by 2 0 5 0 , an d b e t w e e n 4.2°F a n d 7.2°F b y 2 1 0 0 . ▪ In c r e a s i n g i n t e n s i t y o f p r e c i p i t a t i o n e v e n t s a n d l o n g e r d r y pe r i o d s . It i s p r o j e c t e d t h a t th e w e t t e s t d a y e v e r y y e a r w i l l inc r e a s e f r o m 1 0 -30 % b y t h e e n d o f t h e c e n t u r y wi t h m o r e pr e c i p i t a t i o n o c c u r r i n g d u r i n g e x t r e m e e v e n t s . Ch a n g e s i n t e m p e r a t u r e a n d p r e c i p i t a t i o n a r e e x p e c t e d t o i n f l u e n c e th e fr e q u e n c y , d u r a t i o n , a n d m a g n i t u d e o f a v a r i e t y o f c l i m a t e ha z a r d s . C l i m a t e c h a n g e m o d e l s i n d i c a t e t h a t C a r l s b a d i s e x p e c t e d to e x p e r i e n c e t h e f o l l o w i n g b y t h e e n d o f t h e c e n t u r y : ▪ Ex t r e m e Hea t . Ca r l s b a d i s p r o j e c t e d t o e x p e r i e n c e a n i n c r e a s e in t h e a n n u a l n u m b e r o f e x t r e m e h e a t d a y s i n t h e c o m i n g de c a d e s . I n C a r l s b a d , a n e x t r e m e h e a t d a y o c c u r s w h e n t h e ma x i m u m t e m p e r a t u r e i s a b o v e 9 2 . 5 °F . T h e a n n u a l n u m b e r o f ex t r e m e h e a t d a y s i s p r o j e c t e d t o i nc r e a s e b y a s m u c h a s 2 2 da y s a n d t h e a n n u a l n u m b e r o f w a r m n i g h t s is pr o j e c t e d t o in c r e a s e b y a s m u c h a s 7 3 n i g h t s . Bo t h a r e q u a l i f i e d a s d a y s o r ni g h t s i n w h i c h t he t e m p e r a t u r e ex c e e d s th e 9 8 t h p e r c e n t i l e o f hi s t o r i c a l l y o b s e r v e d t e m p e r a t u r e s (C E C 2 0 2 1 ) . ▪ Dr o u g h t . Th e Cit y i s p r o j e c t e d t o e x p e r i e n c e i n c r e a s e s i n t h e le n g t h o f d r y s p e l l s . ▪ Wi l d f i r e . Th e Cit y i s p r o j e c t e d t o e x p e r i e n c e a n i n c r e a s e i n hi g h wi l d f i r e r i s k d a y s , f r e q u e n c y , an d p o t e n t i a l ar e a b u r n e d f r o m wi l d f i r e s . ▪ La n d s l i d e s . Su s c e p t i b i l i t y o f l an d s l i d e s i n C a r l s b a d i s p r o j e c t e d to i n c r e a s e a s p r e c i p i t a t i o n v a r i a b i l i t y i n c r e a s e a n d w i l d f i r e s in c r e a s e i n f r e q u e n c y , a r e a , a n d s e v e r i t y . ▪ Ri v e r i n e a n d Sto r m w a t e r Flo o d i n g . Ri v e r i n e f l o o d i n g o c c u r s wh e n r i v e r s o r s t r e a m s b r e a k t h e i r b a n k s a n d f l o o d s u r r ou n d i n g la n d . Cl i m a t e c h a n g e m a y c a u s e ch a n g e s i n p r e c i p i t a t i o n pa t t e r n s , l e a v i n g lo w -ly i n g a r e a s t h r o u g h o u t Ca r l s b a d to ex p e r i e n c e m o r e f r e q u e n t f l o o d i n g a n d c o u l d i n c r e a s e t h e ex t e n t o f 1 0 0 -ye a r f l o o d s . ▪ Ai r Qua l i t y . Ai r Q u a l i t y w i t h i n t h e Sa n D i e g o R e g io n is p r o j e c t e d to w o r s e n b e c a u s e o f a n i n c r e a s e i n wil d f i r e s a n d av e r a g e ma x i m u m t em p e r a t u r e . L o n g e r p e r i o d s o f dro u g h t w i l l a l s o co n t r i b u t e t o w o r s e n i n g a i r q u a l i t y . ▪ Se a L e v e l R i s e . Th e Cit y i s p r o j e c t e d t o e x p e r i e n c e u p t o 6 . 6 f e e t of s e a l e v e l r i s e by 21 0 0 wi t h i m p a c t s c r e a t i n g v u l n e r a b i l i t i e s t o mu l t i p l e a s s e t s . May 12, 2026 Item #10 Page 207 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 2 Re p o r t O r g a n i z a t i o n Th e r e p o r t i s c o m p o s e d o f t h e f o l l o w i n g s i x p a r t s : 1. In t r o d u c t i o n de s c r i b e s t h e m e t h o d o l o g y a n d k e y d a t a s o u r c e s us e d t o p r e p a r e t h e C l i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t . 2. Ex p o s u r e t o Cl i m a t e H a z a r d s ou t l i n e s c l i m a t e d r i v e r s , r e l e v a n t cl i m a t e h a z a r d s , h i s t o r i c a l h a z a r d s e v e n t s , h o w h a z a r d s a r e ex p e c t e d t o c h a n g e , a n d in c l u d e s f i g u r e s m a p p i n g c l i m a t e ha z a r d s s p a t i a l l y a c r o s s C a r l s b a d . 3. Se n s i t i v i t y id e n t i f i e s p o p u l a t i o n s a n d a s s e t s m o s t a t r i s k t o cl i m a t e c h a n g e . 4. Ad a p t i v e C a p a c i t y su m m a r i z e s p l a n s , p o l i c i e s , a n d p r o g r a m s th a t h e l p C a r l s b a d c o p e w i t h c l i m a t e h a z a r d e v e n t s . 5. Vu l n e r a b i l i t y A n a l y s i s de s c r i b e s p o t e n t i a l i m p a c t s f o r e a c h ha z a r d b a s e d o n s e n s i t i v e c o m m u n i t y , n a t u r a l , a n d b u i l t a s s e t s , wi t h c o n s i d e r a t i o n g i v e n t o t h e i r a d a p t i v e c a p a c i t y . T h e c h a p t e r in c l u d e s v u l n e r a b i l i t y s c o r e s o f l o w , m e d i u m , o r h i g h f o r e a c h po p ul a t i o n g r o u p a n d a s s e t . S e e V u l n e r a b i l i t y S c o r i n g Me t h o d o l o g y s e c t i o n b e l o w f o r m o r e d e t a i l . 6. Co n c l u s i o n pr e s e n t s t h e k e y f i n d i n g s o f t h i s r e p o r t . Po p u l a t i o n s , A s s e t s , a n d S e r v i c e s a t R i s k Pr o j e c t e d ch a n g e s i n c l i m a t e dr i v e r s a n d h a z a r d s wi l l a d v e r s e l y imp a c t c o m m u n i t y m e m b e r s , n a t u r a l r e s o u r c e s , c r i t i c a l f a c i l i t i e s , bu i l d i n g s , s e r v i c e s , a n d i n f r a s t r u c t u r e i n C a r l s b a d . T h e Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t d e s c r i b e s t h e i m p a c t s cl i m a t e c h a n g e i s e x p e c t e d t o h a v e o n t h e f o l l o w i n g po p u l a t i o n s an d a s s e t s : Vu l n e r a b l e P o p u l a t i o n s Vu l n e r a b l e p o p u l a t i o n s w e r e g r o u p e d b a s e d o n p o t e n t i a l ex p o s u r e t o c l i m a t e h a z a r d s , a c c e s s t o r e s o u r c e s t o pr e p a r e , c o p e w i t h , o r r e c o v e r f r o m c l i m a t e h a z a r d s , w h e t h e r in d i v i d u a l s f a c e s o c i e t a l d i s a d v a n t a g e s , o r i f i n di v i d u a l s h a v e h e a t h co n d i t i o n s o r h e a l t h s e n s i t i v i t i e s t h a t l e a v e t h e m v u l n e r a b l e t o cl i m a t e h a z a r d s . O f t e n i n d i v i d u a l s h a v e c h a r a c t e r i s t i c s t h a t m a k e th e m v u l n e r a b l e i n a v a r i e t y o f w a y s ; h o w e v e r , f o r t h e p u r p o s e o f th i s a s s e s s m e n t , t h e y w e r e g r o u p e d b a s ed o n t h e s e n s i t i v i t y t h a t in c r e a s e s t h e i r r i s k t h e m o s t . ▪ In d i v i d u a l s w i t h h i g h o u t d o o r e x p o s u r e ▪ Un d e r -re s o u r c e d i n d i v i d u a l s ▪ In d i v i d u a l s f a c i n g s o c i e t a l b a r r i e r s ▪ In d i v i d u a l s w i t h c h r o n i c h e a l t h c o n d i t i o n s o r h e a l t h re l a t e d se n s i t i v i t i e s Na t u r a l an d R e c r e a t i o n a l Re s o u r c e s Mu n i c i p a l p a r k s Op e n s p a c e s Oc e a n a n d b e a c h e s La g o o n s Wa t e r w a y s Hi l l s i d e s Ur b a n F o r e s t Cr i t i c a l h a b i t a t Ri v e r s a n d s t r e a m s Ve r n a l P o o l s May 12, 2026 Item #10 Page 208 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex e c u t i v e S u m m a r y Pu b l i c S a f e t y E l e m e n t U p d a t e 3 We t l a n d s Bu i l d i n g s a n d F a c i l i t i e s Mu n i c i p a l b u i l d i n g s Ed u c a t i o n a l f a c i l i t i e s Me d i c a l f a c i l i t i e s Re s i d e n t i a l a n d c o m m e r c i a l d e v e l o p m e n t Ro a d w a y s a n d t r a n s p o r t a t i o n f a c i l i t i e s Ac t i v e t r a n s p o r t a t i o n r o u t e s Fi r e s t a t i o n s Po l i c e s t a t i o n s En t e r t a i n m e n t a n d H o s p i t a l i t y Ai r p o r t In f r a s t r u c t u r e a n d C r i t i c a l S e r v i c e s Wa t e r s e r v i c e s Wa s t e w a t e r St o r m d r a i n a g e a n d f l o o d p r o t e c t i o n So l i d a n d h a z a r d o u s w a s t e a n d r e c y c l i n g Fi r e s e r v i c e s Em e r g e n c y s e r v i c e s Me d i c a l s e r v i c e s Ut i l i t i e s a n d m a j o r u t i l i t y c o r r i d o r s Co m m u n i c a t i o n n e t w o r k s Pu b l i c t r a n s p o r t a t i o n Ad a p t i v e C a p a c i t y Ad a p t i v e c a p a c i t y is t h e a b i l i t y t o a d j u s t t o t h e c o n s e q u e n c e s o f cl i m a t e c h a n g e . T y p e s o f a d a p t i v e c a p a c i t y i n c l u d e a d j u s t m e n t s i n be h a v i o r , r e s o u r c e s , pr o c e s s e s , an d t e c h n o l o g i e s . Ca r l s b a d ha s ac t i v e l y t a k e n s t e p s t o i n c r e a s e t h e Cit y ’ s ad a p t i v e c a p a c i t y by re l y i n g o n e xi st i n g p o l i c i e s , p l a n s , p r o g r a m s , a n d i n s t i t u t i o n s t h a t in c r e a s e t h e Cit y ’ s re s i l i e n c e t o c l i m a t e c h a n g e . Th e r e a r e e x i s t i n g pl a n s , p r o g r a m s , a n d p o l i c i e s i n p l a c e t o m i t i g a t e i m p a c t s o f wi l d f i r e , f l o o d i n g , s e a l e v e l r i s e , a n d d r o u g h t o n t h e Cit y ’ s b u i l d i n g s, fa c i l i t i e s , i n f r a s t r u c t u r e , a n d c r i t i c a l s e r v i c e s , a s w e l l a s t o m i t i g a t e im p a c t s o f e x t r e m e h e a t , d r o u g h t , s e a l e v e l r i s e , a n d w i l d f i r e o n t h e Cit y ’ s v u l n e r a b l e p o p u l a t i o n s . Vu l n e r a b i l i t y A n a l y s i s Cl i m a t e c h a n g e i s e x p e c t e d t o i m p a c t p u b l i c h e a l t h , na tu r a l re s o u r c e s , bu i l d i n g s a n d f a c i l i t i e s , an d i n f r a s t r u c t u r e a n d c r i t i c a l fa c i l i t i e s . U n d e r s t a n d i n g l o c a l c l i m a t e r i s k s a n d i m p a c t s a l l o w s co m m u n i t i e s t o p r e p a r e f o r t h e f u t u r e a n d i n c r e a s e t h e i r r e s i l i e n c e . Po p u l a t i o n g r o u p s a n d a s s e t c a t e g o r i e s w i t h h i g h v u l n e r a b i l i t y sc o r e s a r e d e s c r i b e d b e l o w . Vu l n e r a b l e P o p u l a t i o n s ▪ Ex t r e m e Hea t . In c r e a s e d n u m b e r o f e xt r e m e h e a t da y s w i l l r e s u l t i n i n c r e a s e d p u b l i c h e a l t h r i s k s , pa r t i c u l a r l y t o v u l n e r a b l e p o p u l a t i o n s , t h r o u g h h e a t -im p a c t e d di s e a s e s a n d a i r qu a l i t y d e g r a d a t i o n . In d i v i d u a l s w i t h h i g h ou t d o o r e x p o s u r e , u n d e r -re s o u r c e d i n d i v i d u a l s , i n d i v i d u a l s May 12, 2026 Item #10 Page 209 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 4 fa c i n g s o c i e t a l b a r r i e r s , a n d i n d i v i d u a l s w i t h c h r o n i c h e a l t h co n d i t i o n s a r e a l l v u l n e r a b l e t o e x t r e m e h e a t . ▪ Dr o u g h t . In d i v i d u a l s w i t h h i g h o u t d o o r e x p o s u re a r e p a r t i c u l a r l y at r i s k t o d r o u g h t c o n d i t i o n s . Du r i n g p r o l o n g e d d r o u g h t co n d i t i o n s , p e o p l e e x p e r i e n c i n g h o m e l e s s n e s s m a y h a v e di f f i c u l t y a c c e s s i n g c l e a n a n d a f f o r d a b l e d r i n k i n g w a t e r . ▪ Wi l d f i r e . In d i v i d u a l s w i t h h i g h o u t d o o r e x p o s u r e , i n d i v i d u a l s wi t h ch r o n i c h e a l t h c o n d i t i o n s , u n d e r r e s o u r c e d in d i v i d u a l s , an d in d i v i d u a l s f a c i n g s o c i e t a l b a r r i e r s a r e a l l a t r i s k t o w i l d f i r e im p a c t s . T h e as s o c i a t e d r i s k s a r e mo r t a l i t y , st r u c t u r al da m a g e an d l o s s to t h e i r p l a c e o f r e s i d e n c e , s m o k e -ca u s e d h e a l t h co m p l i c a t i on s , a n d e x a c e r b a t i o n o f s o c i a l v u l n e r a b i l i t i e s . ▪ Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g . Ou t d o o r w o r k e r s m a y b e ex p o s e d t o h a z a r d o u s w o r k c o n d i t i o n s d u r i n g r i v e r i n e a n d / o r st o r m w a t e r f l o o d i n g e v e n t s a n d t h e r e f o r e a r e v u l n e r a b l e t o he a l t h i m p a c t s . P e o p l e e x p e r i e nc i n g h o m e l e s s n e s s a r e di s p r o p o r t i o n a t e l y a t r i s k t o h e a l t h i m p a c t s d u r i n g f l o o d e v e n t s be c a u s e t h e y o f t e n l i v e i n f l o o d h a z a r d a r e a s a n d d o n o t h a v e ac c e s s t o t r a n s p o r t a t i o n o r r e s o u r c e s n e e d e d t o e v a c u a t e in u n d a t e d a r e a s . ▪ Ai r Q u a l i t y . In d i v i d u a l s w i t h h ig h o u t d o o r e x p o s u r e a n d in d i v i d u a l s w i t h c h r o n i c h e a l t h c o n d i t i o n s a r e p a r t i c u l a r l y vu l n e r a b l e t o p o o r a i r q u a l i t y . Ou t d o o r w o r k e r s a n d p e o p l e ex p e r i e n c i n g h o m e l e s s n e s s a r e d i s p r o p o r t i o n a l l y v u l n e r a b l e t o po o r a i r q u a l i t y b e c a u s e t h e y a r e o u t d o o r s a n d a r e di r e c t l y ex p o s e d t o o u t d o o r a i r p o l l u t a n t s . In d i v i d u a l s w i t h c h r o n i c he a l t h c o n d i t i o n s o r h e a l t h r e l a t e d s e n s i t i v i t i e s a r e a t r i s k o f de v e l o p i n g o r e x p e r i e n c i n g e x a c e r b a t e d h e a l t h i m p a c t s f r o m po o r a i r q u a l i t y . C h i l d r e n a r e e x t r e m e l y v u l n e r a b l e t o h e a l t h im p a c t s f r o m p o o r a i r q u a l i t y b e c a u s e t h e i r r e s p i r a t o r y s y s t e m ha s n o t f u l l y d e v e l o p e d y e t . O l d e r a d u l t s , m i l i t a r y v e t e r a n s , a n d po l l u t i o n b u r d e n e d i n d i v i d u a l s a r e v u l n e r a b l e t o h e a l t h i m p a c t s fr o m p o o r a i r q u a l i t y b e c a u s e t h e y a r e m o r e l i k e l y t o h a v e un d e rl y i n g r e s p i r a t o r y a n d / o r c a r d i o v a s c u l a r c o n d i t i o n s . In d i v i d u a l s w i t h c a r d i o v a s c u l a r d i s e a s e a n d i n d i v i d u a l s w i t h as t h m a m a y e x p e r i e n c e s e v e r e h e a l t h i m p a c t s i f e x p o s e d t o po o r a i r q u a l i t y . ▪ Se a L e v e l R i s e . Peo p l e w h o l i v e i n i n u n d a t i o n z o n e s m a y n e e d to re t r o f i t h o m e s t o a d a p t t o s e a l e v e l r i s e a n d a s s o c i a t e d im p a c t s s u c h a s m o l d . Th i s ac t i v i t y is p a r t i c u l a r l y d i f f i c u l t f o r th o s e w i t h l i m i t e d a c c e s s t o r e s o u r c e s , i n c l u d i n g i n d i v i d u a l s wh o a r e u n e m p l o y e d , an d lo w -in c o m e i n d i v i d u a l s . Li n g u i s t i c a l l y is o l a t e d i n d i v i d u a l s m a y n o t h a v e a c c e s s t o n o n -En g l i s h v e r s i o n s of s e a -le v e l -ri s e p r e p a r e d n e s s g u i d a n c e a n d t h e r e f o r e m a y n o t be a b l e t o p r e p a r e f o r a n d c o p e w i t h s e a -le v e l -ri s e . Na t u r a l an d R e c r e a t i o n a l Re s o u r c e s ▪ Ex t r e m e H e a t . Wi l d l i f e u n d e r t h e s e c o n d i t i o n s f a c e im p a c t s o f h e a t s t r e s s a n d h e a t r e l a t e d i l l n e s s a s w e l l a s di s r u p t e d r e p r o d u c t i v e c y c l e s . P l a n t s ar e mo r e l i k e l y t o ex p e r i e n c e h e a t s t r e s s a n d d r y i n g , s p e c i e s ’ h a b i t a t r a n g e s m a y sh i f t an d b e r e p l a c e d w i t h i n v a s i v e s p e c i e s . Na t u r a l r e s o u r c e s ar e h i g h l y e x p o s e d t o e x t r e m e h e a t a n d w a r m n i g h t s . B o t h m i d - an d e n d - of ce n t u r y p r o j e c t i o n s d e p i c t d r a m a t i c i n c r e a s e s i n ex t r e m e h e a t d a y s ▪ Dr o u g h t . Im p a c t s f r o m d r o u g h t i n v o l v e r i s k s a s s o c i a t e d w i t h wa t e r s c a r c i t y a n d a v a i l a b i l i t y f o r r e l i a n t n a t u r a l r e s o u r c e s . Dr o u g h t w i l l d i s r u p t h a b i t a t s a n d w i l d l i f e a b i l i t i e s t o s u r v i v e fr o m d e h y d r a t i o n an d r e l i a b l e f o o d s o u r c e s . Th e r e i s a r i s k o f ge n e r a l l y s t r e s s e d n a t u r a l r e s o u r c e s an d u n s u p p o r t a b l e co n d i t i o n s f o r c o n s i s t e n t s t re a m f l o w . ▪ Wi l d f i r e . Th e l a r g e s t d i r e c t i m p a c t s t o n a t u r a l r e s o u r c e s a r e ca u s e d b y w i l d f i r e s . T h e r e i s d i r e c t m o r t a l i t y a n d l o s s o f May 12, 2026 Item #10 Page 210 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex e c u t i v e S u m m a r y Pu b l i c S a f e t y E l e m e n t U p d a t e 5 re s o u r c e s a n d w i l d l i f e f r o m w i l d f i r e a s w e l l a s i n d i r e c t m o r t a l i t y du e t o u n i n h a b i t a b l e a r e a s , l o s s o f a v a i l a b l e f o o d s o u r c e s a n d se e d b a n k . T h e s e v e r i t y a n d f r e q u e n c y o f w i l d f i r e s c a n ex a c e r b a t e t h e s e i m p a c t s f u r t h e r t h r o u g h h a b i t a t c o n v e r s i o n s re s u l t i n g i n v e g e t a t i o n c o m m u n i t i e s t h a t n o l o n g e r s u p p o r t s t h e sp e c i e s u s i n g t h a t h a b i t a t . ▪ Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g . Ri v e r i n e an d s t o r m w a t e r fl o o d i n g w i l l m o s t l y a f f e c t s e n s i t i v e s p e c i e s o f p l a n t s a n d w i l d l i f e th a t a r e n o t u p l a n d b a s e d . Ot h e r im p a c t s i n c l u d e d a m a g e f r o m in u n d a t i o n w i t h i n s t o r m f l o o d e d a r e a s s u c h a s h a b i t a t s a n d la n d s a r o u n d s t r e a m s a n d w a t e r b o d i e s i n t h e Cit y . Add i t i o n a l l y , st o r m w a t e r f l o o d i n g c a n r e d u c e o v e r a l l w a t e r q u a l i t y t h r o u g h al g a e b l o o m s c a u s i n g wa t e r q u a l i t y is s u e s w i t h i n w e t l a n d s . ▪ Ai r Q u a l i t y . Th e d i r e c t e f f e c t s o f a i r q u a l i t y d e c l i n e s o n n a t u r a l re s o u r c e s r e l a t e s t o p l a n t a n d w i l d l i f e h e a l t h a s i n c r e a s e d a i r po l l u t a n t s c a u s e s s t r e s s a n d m o r t a l i t y . I m p a c t s f r o m a i r q u a l i t y ca n f u r t h e r i m p a c t n a t u r a l r e s o u r c e s s i n c e a i r q u a l i t y d e c l i n e s co r r e s p o n d w i t h o t h e r h a z a r d s , c o m p o u n d i n g r i s k s . ▪ Se a L e v e l R i s e . Co a s t a l i n u n d a t i o n a f f e c t s h a b i t a t s , w i l d l i f e , a n d pl a n t s t h r o u g h o u t C a r l s b a d . E n v i r o n m e n t a l l y s e n s i t i v e l a n d s su c h a s l a g o o n s a n d w e t l a n d s a r e m o s t a f f e c t e d b y s e a l e v e l r i s e an d s h o w l i m i t a t i o n s i n ab i l i t y t o s h i f t h a b i t a t l o c a t i o n . Bu i l d i n g s a n d F a c i l i t i e s ▪ Ex t r e m e H e a t . Ex t r e m e h e a t c o u l d i m p a c t oc c u p a n t s o f b u i l d i n g s a n d f a c i l i t i e s t h a t a r e n o t ad e q u a t e l y w e a t h e r i z e d f o r i n c r e a s e d t e m p e r a t u r e s . ▪ Se a L e v e l R i s e . Th e s t r u c t u r e s a n d b u i l d i n g s t h a t o cc u p y s e a le v e l r i s e f l o o d a n d i n u n d a t i o n h a z a r d z o n e s i n C a r l s b a d a r e a t ri s k o f s t r u c t u r a l d a m a g e f r o m s e a l e v e l r i s e . T h e r e a r e s e v e r a l cr i t i c a l f a c i l i t i e s i n t h e Cit y ’ s s e a l e v e l r i s e z o n e s . In f r a s t r u c t u r e a n d C r i t i c a l F a c i l i t i e s ▪ Ex t r e m e H e a t . Ex t r e m e h e a t a f f e c t s r o a d w a y s , ac t i v e t r a n s p o r t a t i o n r o u t e s , a n d r a i l r o a d s c r e a t i n g vu l n e r a b i l i t i e s t o d a m a g e s t h r o u g h s u s t a i n e d h e a t . E l e c t r i c a l in f r a s t r u c t u r e i s a l s o a t r i s k t o g r i d o v e r l o a d t h r o u g h i n c r e a s e d po w e r d e m a n d . ▪ Dr o u g h t . Dr o u g h t c a n i m p a c t w a t e r r e li a b i l i t y a n d w a t e r in f r a s t r u c t u r e . A l l e m e r g e n c y s e r v i c e s d e p e n d o n w a t e r , pa r t i c u l a r l y f i r e f i g h t e r s w h o r e q u i r e a d e q u a t e w a t e r s u p p l y f o r fi r e s u p p r e s s i o n . D r o u g h t vu l n e r a b i l i t y ca n c r e a t e s e r v i c e s t r a i n fo r e m e r g e n c y a n d m e d i c a l s e r v i c e s . ▪ Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g . Im p e r v i o u s s u r f a c e s c a n im p e d e t h e a b s o r p t i o n o f w a t e r a n d a u g m e n t s t o r m w a t e r fl o o d i n g i n a r e a s o f C a r l s b a d . Th e r e i s r i s k o f d a m a g e f r o m in c r e a s e d e x t r e m e p r ec i p i t a t i o n e v e n t s i n c l u d i n g e r o s i o n , wa s h o u t s , a n d s i n k h o l e s . S t o r m d r a i n a g e a n d f l o o d p r o t e c t i o n se r v i c e s f o r t h e C i t y m a y b e i m p a c t e d b y t h e s e e v e n t s . ▪ Ai r Q u a l i t y Hi g h e r i n c i d e n c e o f u n s a f e a i r q u a l i t y g e n e r a t e d b y in c r e a s e d s m o g , d u s t a n d w i l d f i r e s m o k e c a n c r e a t e g e n e r a l st r a i n o n e x i s t i n g i n f r a s t r u c t u r e a n d c r i t i c a l s e r v i c e s t h r o u g h in c r e a s e d r a t e s o f h o s p i t a l i z a t i o n a n d e m e r g e n c y a n d m e d i c a l se r v i c e s . ▪ Se a L e v e l R i s e . Th e i m p a c t s C a r l s b a d i s e x p e c t e d t o e x p e r i e n c e re l a t e d t o s e r v i c e s a n d i n f r a s t r u c t u r e a r e m o d e r a t e w h e n pr e s e n t e d t o g e t h e r . Pe r t h e 2 0 1 7 C a r l s b a d S e a L e v e l R i s e Vu l n e r a b i l i t y A s s e s s m e n t , t he r e a r e 8 p a r c e l s o f c r i t i c a l in f r a s t r u c t u r e , 5 . 8 m i l e s o f t r a n s p o r t a t i o n r o u t e s , a n d 7 . 3 m i l e s of l a t e r a l p u b l i c a c c e s s w a y s i m p a c t e d b y s e a l e v e l r i s e t h r o u g h 21 0 0 May 12, 2026 Item #10 Page 211 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 6 Ke y F i n d i n g s Th e C l i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t i d e n t i f i e s t h e co m m u n i t y m e m b e r s , n a t u r a l r e s o u r c e s , c r i t i c a l f a c i l i t i e s , b u i l d i n g s , se r v i c e s , a n d i nf r a s t r u c t u r e m o s t v u l n e r a b l e t o c l i m a t e c h a n g e ha z a r d s i n Ca r l s b a d . A l t h o u g h t h e Ci ty ha s p o l i c i e s a n d p r o g r a m s i n pl a c e t o p r e p a r e f o r c l i m a t e r e l a t e d h a z a r d s , g a p s r e m a i n a s su m m a r i z e d in th e C l i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t . Th i s as s e s s m e n t i s a s t a r t i n g p o i n t f o r e s t a b l i s h i n g a n a d a p t a t i o n p o l i c i e s an d p r o g r a m s i n t h e C a r l s b a d Pu b l i c S a f e t y E l e m e n t . May 12, 2026 Item #10 Page 212 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 In t r o d u c t i o n Pu b l i c S a f e t y E l e m e n t U p d a t e 7 1 In t r o d u c t i o n 1. 1 Ba c k g r o u n d on C l i m a t e C h a n g e Th i s re p o r t ev a l u a t e s h o w c l i m a t e c h a n g e m a y i m p a c t v u l n e r a b l e c o m m u n i t y me m b e r s , na t u r a l r e s o u r c e s , b u i l d i n g s a n d f a c i l i t i e s , an d se r v i c e s an d in f r a s t r u c t u r e in Ca r l s b a d . Th i s re p o r t i s co n s i s t e n t w i t h Go v e r n m e n t C o d e § 65 3 0 2 (a s a m e n d e d b y Se n a t e B i l l ( S B ) 37 9 ) wh i c h re q u i r e s ci t i e s , c o u n t i e s , a n d un i n c o r p o r a t e d a r e a s a c r o s s C a l i f o r n i a to p r e p a r e a Cli m a t e Cha n g e Vu ln e r a b i l i t y Ass e s s m e n t to i n f o r m up d a t e s t o th e Pu b l i c Sa f e t y E l e m e n t o f t h e G e n e r a l P l a n . Un d e r s t a n d i n g Ca r l s b a d ’ s vu l n e r a b i l i t i e s t o c l i m a t e c h a n g e p r o v i d e s a f o u n d a t i o n to de v e l o p re q u i r e d cl i m a t e ad a p t a t i o n go a l s , p o l i c i e s , a n d i m p l e m e n t a t i o n pr o g r a m s fo r t h e Cit y ’ s Pu b l i c Sa f e t y El e m e n t . 1. 2 Ca r l s b a d Sn a p s h o t Ca r l s b a d i s a c o a s t a l c o m m u n i t y l o c a t e d 3 0 mi l e s n o r t h o f S a n D i e g o. Th e Cit y bo r d e r s t h e P a c i f i c O c e a n t o t h e w e s t , En c i n i t a s t o t h e s o u t h , V i s t a a n d S a n M a r c o s to t h e e a s t a n d O c e a n s i d e t o t h e n o r t h . Si n c e b e i n g i n c o r p o r a t e d a s a Cit y i n 1 9 5 2 th e r e h a s be e n a s t e a d y r a t e o f g r o w t h w i t h t h e c u r r e n t p o p u l a t i o n o f C a r l s b a d at ap p r o x i m a t e l y 1 1 5 , 58 5 fu l l -ti m e r e s i d e n t s (Ca l D O F 2 0 2 2 ). Ca u s e s o f C l i m a t e C h a n g e Cl i m a t e c h a n g e i s c a u s e d b y t h e a d d i t i o n o f e x c e s s gr e e n h o u s e g a s e s ( G H G s ) t o t h e a t m o s p h e r e , w h i c h tr a p s h e a t n e a r t h e e a r t h ’ s s u r f a c e r a i s i n g gl o b a l av e r a g e t e m p e r a t u r e s i n w h a t i s r e f e r r e d t o a s t h e gr e e n h o u s e e f f e c t . T h i s i n c r e a s e i n a v e r a g e te m p e r a t u r e s a c r o s s t h e g l o b e a f f e c t s s e a l e v e l r i s e , pr e c i p i t a t i o n p a t t e r n s , t h e s e v e r i t y o f w i l d f i r e s , t h e pr e v a l e n c e o f e x t r e m e h e a t e v e n t s , w a t e r s u p p ly , a n d oc e a n t e m p e r a t u r e s a n d c h e m i s t r y ( N A S A 2 0 2 2 ) . Ac c o r d i n g t o t h e I n t e r g o v e r n m e n t a l P a n e l o n C l i m a t e Ch a n g e ( I P C C ) , G H G s a r e n o w h i g h e r t h a n t h e y h a v e be e n i n t h e p a s t 4 0 0 , 0 0 0 y e a r s , r a i s i n g c a r b o n d i o x i d e le v e l s f r o m 2 8 0 p a r t s p e r m i l l i o n t o 4 1 0 p a r t s p e r mi l l i o n i n t h e l a s t 1 5 0 y e a r s ( I P C C , 2 0 2 1 ) . T h e d r a m a t i c in c r e a s e i n G H G s i s a t t r i b u t e d t o h u m a n a c t i v i t i e s be g i n n i n g w i t h t h e i n d u s t r i a l r e v o l u t i o n i n t h e 1 8 0 0 s , wh i c h r e p r e s e n t e d a s h i f t f r o m a n a g r a r i a n a n d ha n d i c r a f t -ba s e d e c o n o m y t o o n e d o m i n a t e d b y in d u s t r y a n d m a c h i n e m a n u f a c t u r i n g ( N A S A 2 0 2 2 ) . May 12, 2026 Item #10 Page 213 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 8 1. 3 Le x i c o n Se v e r a l w o r d s a n d p h r a s e s a r e u s e d t h r o u g h o u t t h e p l a n to i l l u s t r a t e cl i m a t e vu l n e r a b i l i t i e s w i t h i n Ca r l s b a d . ▪ Ad a p t a t i o n . Th e p r o c e s s o f a d j u s t m e n t t o a c t u a l o r e x p e c t e d cl i m a t e a n d i t s e f f e c t s , e i t h e r t o m i n i m i z e h a r m o r e x p l o i t be n e f i c i a l o p p o r t u n i t i e s . I n n a t u r a l s y s t e m s , h u m a n i n t e r v e n t i o n ma y f a c i l i t a t e a d j u s t m e n t t o e x p e c t e d cl i m a t e ( I P C C , 2 0 1 2 ) . ▪ Ad a p t i v e C a p a c i t y . Ca r l s b a d ’ s a b i l i t y t o c o p e w i t h a n d a d j u s t t o th e i m p a c t s o f c l i m a t e c h a n g e ( C a l O E S 2 0 2 0 ) . ▪ As s e t . Re f e r e n t i a l t o a r e s o u r c e , s t r u c t u r e , f a c i l i t y o r s e r v i c e t h a t is r e l i e d o n b y a c o m m u n i t y . ▪ Ca s c a d i n g I m p a c t . Cl i m at e h a z a r d c a u s e d i m p a c t s t h a t co m p r o m i s e i n f r a s t r u c t u r e o r d i s r u p t c r i t i c a l s e r v i c e s ( i . e . , p o w e r su p p l y o r w a t e r c o n v e y a n c e ) b r o a d e n i n g t h e s c o p e o f i m p a c t p a s t a s i n g u l a r s u b j e c t t o r e l i a n t s u b s y s t e m s a n d p o p u l a t i o n s ( C o l l i n s et a l . 2 0 1 9 ) . ▪ Cl i m a t e D r i v e r. A c h a n g e i n t h e c l i m a t e w h i c h a c t s a s t h e m a i n so u r c e o f c h a n g e f o r s u b s e q u e n t c l i m a t e h a z a r d s . C l i m a t e d r i v e r s re l e v a n t t o t h e ci t y an d d i s c u s s e d i n t h i s r e p o r t a r e t e m p e r a t u r e an d p r e c i p i t a t i o n . ▪ Cl i m a t e H a z a r d . A d a n g e r o u s o r p o t e n t i a l l y d a n g e r o u s c o n di t i o n cr e a t e d b y t h e e f f e c t s o f t h e l o c a l c l i m a t e ( C a l O E S 2 0 2 0 ) . C l i m a t e ha z a r d s o f c o n c e r n f o r C a r l s b a d a r e e x t r e m e h e a t , w a r m n i g h t s , ch i l l h o u r s , d r o u g h t , w i l d f i r e , l a n d s l i d e s , t u l e f o g , r i v e r i n e a n d st o r m w a t e r f l o o d i n g , a n d a i r q u a l i t y . ▪ Co m p o u n d i n g Ri s k . Wh e n t w o o r m o r e e x t r e m e e v e n t s o r av e r a g e e v e n t s o c c u r s i m u l t a n e o u s l y a n d i n c r e a s e t h e s c o p e o f im p a c t o r s e v e r i t y o f t h e e v e n t ; a n a d d i t i o n a l r i s k b r o u g h t a b o u t by i n c r e a s e d f r e q u e n c y o f e v e n t s f r o m c l i m a t e c h a n g e (S e n e v i r a t n e e t a l . 2 0 1 2 ) . ▪ Ex p o s u r e. Th e p r e s e n c e o f p e o p l e , i n f r a s t r u c t u r e , n a t u r a l sy s t e m s , a n d e c o n o m i c , c u l t u r a l , a n d s o c i a l r e s o u r c e s i n a r e a s a r e su b j e c t t o h a r m ( K a l a n s k y e t a l . 2 0 1 8 ) . ▪ Im p a c t . Ef f e c t s o n n a t u r a l a n d h u m a n s y s t e m s i n c l u d i n g e f f e c t s on l i v e s , l i v e l i h o o d s , h e a l t h , e c o s ys t e m s , e c o n o m i e s , s o c i e t i e s , cu l t u r e s , s e r v i c e s , a n d i n f r a s t r u c t u r e d u e t o t h e i n t e r a c t i o n o f cl i m a t e h a z a r d s a n d t h e v u l n e r a b i l i t i e s o f t h e s y s t e m o r a s s e t ef f e c t e d ( I P C C 2 0 1 2 ) . ▪ Mi t i g a t i o n . An a c t o r s u s t a i n e d a c t i o n s t o r e d u c e , e l i m i n a t e , o r av o i d n e g a t iv e i m p a c t s o r e f f e c t s ( C a l O E S 2 0 2 0 ) . ▪ Re s i l i e n c e . Th e c a p a c i t y o f a n e n t i t y ( a n i n d i v i d u a l a c o m m u n i t y , an o r g a n i z a t i o n , o r a n a t u r a l s y s t e m ) t o p r e p a r e f o r d i s r u p t i o n s , to r e c o v e r f r o m s h o c k s a n d s t r e s s e s , a n d t o a d a p t a n d g r o w f r o m a d i s r u p t i v e e x p e r i e n ce ( C a l O E S 2 0 2 0 ) ▪ Se n s i t i v i t i e s . T h e d e g r e e t o w h i c h a s p e c i e s , n a t u r a l s y s t e m , co m m u n i t y , a s s e t , o r o t h e r a s s o c i a t e d s y s t e m w o u l d b e a f f e c t e d by c h a n g i n g c l i m a t e c o n d i t i o n s ( C a l O E S 2 0 2 0 ) . ▪ Vu l n e r a b l e P o p u l a t i o n s . Vu l n e r a b l e p o p u l a t i o n s ar e t h e co m m u n i t i e s m o s t i m p a c t e d b y c l i m a t e c h a n g e a n d c l i m a t e di s a s t e r s . V u l n e r a b l e p o p u l a t i o n s m a y ex p e r i e n c e h e i g h t e n e d r i s k an d i n c r e a s e d se n s i t i v i t y t o c l i m a t e c h a n g e a n d h a v e l e s s c a p a c i t y an d f e w e r r e s o u r c e s t o c o p e w i t h , a d a p t t o , o r r e c o v e r f r o m cl i m a t e i m p a c t s ( C al O E S 2 0 2 0 ) ▪ Vu l n e r a b i l i t y . Th e pr o p e n s i t y or p r e d i s p o s i t i o n t o b e a d v e r s e l y af f e c t e d ( I P C C 2 0 1 2 ) . May 12, 2026 Item #10 Page 214 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 In t r o d u c t i o n Pu b l i c S a f e t y E l e m e n t U p d a t e 9 1. 4 Vu l n e r a b i l i t y A s s e s s m e n t Me t h o d o l o g y Th e f o l l o w i n g s e c t i o n d e t a i l s s t a t e g u i d a n c e , m e t h o d s , a n d s o u r c e s u s e d i n t h e p r o d u c t i o n o f t h i s r e p o r t . Ca l i f o r n i a Ad a p t a t i o n P l a n n i n g G u i d e P h a s e s Th e C a r l s b a d C l i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t f o l l o w s t h e vu l n e r a b i l i t y a s s e s s m e n t p r o c e s s r e c o m m e n d e d b y t h e C a l i f o r n i a Go v e r n o r ’ s O f f i c e o f E m e r g e n c y S e r v i c e s , a s d o c u m e n t e d i n t h e 2 0 2 0 Ca l i f o r n i a A d a p t a ti o n P l a n n i n g G u i d e ( C a l A P G ) . T h e a d a p t a t i o n pl a n n i n g p r o c e s s o u t l i n e d b y t h e C a l A P G c o n s i s t s o f f o u r p h a s e s , il l u s t r a t e d i n t h e g r a p h i c b e l o w , w i t h P h a s e 2 d e t a i l i n g t h e vu l n e r a b i l i t y a s s e s s m e n t p r o c e s s ( C a l O E S , 2 0 2 0 ) . So u r c e : 2 0 2 0 C a l i f o r n i a A d a p ta t i o n P l a n n i n g G u i d e May 12, 2026 Item #10 Page 215 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 10 Th e Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t i s p r e p a r e d c o n s i s t e n t w i t h P h a s e 2 o f t h e Ca l A P G a n d is c o m p o s e d o f t h e f o l l o w i n g pa r t s fo u n d i n Fi g u r e 1. Fi g u r e 1 Vu l n e r a b i l i t y A s s e s s m e n t F l o w D i a g r a m May 12, 2026 Item #10 Page 216 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 In t r o d u c t i o n Pu b l i c S a f e t y E l e m e n t U p d a t e 11 Ke y D a t a S o u r c e s Th e f o l l o w i n g d a t a s o u r c e s a n d t o o l s , m a n y o f w h i c h a r e re c o m m e n d e d w i t h i n t h e C a l A P G , w e r e u s e d i n p r e p a r a t i o n o f t h i s re p o r t . Ad d i t i o n a l p l a n s w e r e c o n s u l t e d t o i n f o r m t h e a d a p t i v e ca p a c i t y a n a l y s i s w h i c h a r e p r o v i d e d i n S e c t i o n 4 . ▪ U. S . C e n s u s , 2 0 1 5 -20 1 9 A m e r i c a n C o m m u n i t y S u r v e y ( A C S ) pr e s e n t s d e m o g r a p h i c d a t a b y c e n s u s t r a c t a n d w a s u s e d t o su p p l e m e n t t h e H P I p e r c e n t i l e s c o r e . 2 0 2 0 U . S . C e n s u s d a t a w a s us e d t o i d e n t i f y t h e p e r c e n t a g e o f t h e C a r l s b a d p o p u l a t i o n t h a t co r r e s p o n d s t o e a c h v u l n e r a b l e g r o u p ▪ Ca l -Ad a p t is a n o n l i n e t o o l t h a t p r e s e n t s h i s t o r i c a n d m o d e l e d pr o j e c t i o n s b a s e d o n 1 0 d i f f e r e n t g l o b a l c l i m a t e m o d e l s . T h e to o l w a s d e v e l o p e d a n d i s m a i n t a i n e d b y t h e U n i v e r s i t y o f Ca l i f o r n i a w i t h o v e r s i g h t f r o m t h e C a l i f o r n i a E n e r g y C o m m i s s i o n (C E C ) . T h i s t o o l i s u s e d t o p r e s e n t p r o j e c t i o n d a t a r e l a t e d t o mi n i m u m a n d m a x i m u m t e m p e r a t u r e , p r e c i p i t a t i o n , e x t r e m e he a t , w a r m n i g h t s , d r o u g h t , a n d w i l d f i r e . ▪ Ca l i f o r n i a ’ s F o u r t h C l i m a t e C h a n g e A s s e s s m e n t wa s d e v e l o p e d by t h e C E C a n d o t h e r S t a t e o f C a l i f o r n i a c o o r di n a t i n g a g e n c i e s to p r e s e n t u p -to -da t e c l i m a t e s c i e n c e , p r o j e c t i o n s a n d p o t e n t i a l im p a c t s a s s o c i a t e d w i t h c l i m a t e c h a n g e . T h e C E C a n d co o r d i n a t i n g a g e n c i e s d e v e l o p e d n i n e r e g i o n a l r e p o r t s t o pr o v i d e r e g i o n a l -sc a l e c l i m a t e i n f o r m a t i o n t o s u p p o r t l o c a l pl a n ni n g a n d a c t i o n . T h e S a n D i e g o R e g i o n S u m m a r y R e p o r t (2 0 1 8 ) p r e s e n t s a n o v e r v i e w o f c l i m a t e s c i e n c e , r e g i o n a l pr o j e c t i o n s , s p e c i f i c s t r a t e g i e s t o a d a p t t o c l i m a t e i m p a c t s , a n d ke y r e s e a r c h g a p s n e e d e d t o s p u r a d d i t i o n a l p r o g r e s s o n sa f e g u a r d i n g t h e S a n D i e go R e g i o n f r o m c l i m a t e c h a n g e . T h e Sa n D i e g o R e g i o n S u m m a r y R e p o r t w a s u s e d t o u n d e r s t a n d re g i o n a l c h a n g e s t h a t m a y a f f e c t C a r l s b a d b o t h d i r e c t l y a n d in d i r e c t l y . ▪ Th e C a l i f o r n i a H e a l t h y P l a c e s I n d e x ( H P I ) is a n o n l i n e m a p p i n g to o l t h a t r e p o r t s o n c o m m u n i t y co n d i t i o n s t h a t a r e k n o w n t o pr e d i c t h e a l t h o u t c o m e s a n d l i f e e x p e c t a n c y . T h e t o o l w a s pr e p a r e d b y t h e P u b l i c H e a l t h A l l i a n c e o f S o u t h e r n C a l i f o r n i a , a co l l a b o r a t i v e o f l o c a l h e a l t h d e p a r t m e n t s i n S o u t h e r n C a l i f o r n i a . HP I d i s p l a y s 2 5 c o m m u n i t y c h a r a c t e r i s ti c s a t v a r i o u s l e g i s l a t i v e bo u n d a r i e s , i n c l u d i n g c e n s u s t r a c t s a n d c i t y a n d c o u n t y bo u n d a r i e s . T h e c o m m u n i t y c h a r a c t e r i s t i c s r e l a t e t o t h e fo l l o w i n g i d e n t i f i e d P o l i c y A c t i o n A r e a s : e c o n o m i c , e d u c a t i o n , ho u s i n g , h e a l t h c a r e a c c e s s , n e i g h b o r h o o d , c l e a n e n v i ro n m e n t , tr a n s p o r t a t i o n , a n d s o c i a l f a c t o r s . H P I a p p l i e s a r e l a t i v e pe r c e n t i l e s c o r e a c r o s s a l l c e n s u s t r a c t s i n C a l i f o r n i a u s i n g st a t i s t i c a l m o d e l i n g t e c h n i q u e s b a s e d o n t h e r e l a t i o n s h i p o f t h e Po l i c y A c t i o n A r e a s t o l i f e e x p e c t a n c y a t b i r t h . L o w p e r c e n t i le sc o r e s r e f l e c t u n h e a l t h y c o n d i t i o n s . H P I w a s u s e d t o p r e p a r e th e s o c i a l s e n s i t i v i t y i n d e x s c o r e a s d e s c r i b e d i n m o r e d e t a i l be l o w . H P I is a u s e f u l in p r o v i d i n g b o t h b i g p i c t u r e a n d l o c a l i z e d in s i g h t s i n t o c o m m u n i t y h e a l t h . T h e l i m i t a t i o n o f t h i s t o o l i s t h e da t a b e h i n d t h e m e a s u r e m e n t s a n d p e r c e n t i l e s c o r e s i s b a s e d on U S C e n s u s i n f o r m a t i o n f r o m 2 0 1 4 . T h o u g h m u c h o f t h e co m m u n i t y h e a l t h i n d i c a t o r s h av e r e m a i n e d c o n s t a n t t h e t o o l wa s s u p p l e m e n t e d w i t h a d d i t i o n a l i n f o r m a t i o n f r o m Ca l E n v i r o S c r e e n to e n s u r e t h a t t h e b e s t a v a i l a b l e d a t a i s u s e d i n th i s r e p o r t . ▪ Ca l E n v i r o S c r e e n 4 . 0 us e s a v a r i e t y o f s t a t e w i d e i n d i c a t o r s t o ch a r a c t e r i z e p o l l u t i o n b u r d e n ( t h e av e r a g e o f e x p o s u r e s a n d en v i r o n m e n t a l ef f e c t s ) a n d p o p u l a t i o n c h a r a c t e r i s t i c s ( t h e av e r a g e o f s e n s i t i v e p o p u l a t i o n s a n d s o c i o e c o n o m i c f a c t o r s ) . Th e m o d e l s c o r e s e a c h o f t h e i n d i c a t o r s u s i n g p e r c e n t i l e s a n d co m b i n e s t h e s c o r e s t o d e t e r m i n e a C a l E n v i r o S c r e en s c o r e f o r a gi v e n c e n s u s t r a c t r e l a t i v e t o o t h e r s i n t h e s t a t e . D e s i g n a t e d di s a d v a n t a g e d c o m m u n i t i e s a r e t h o s e c o m m u n i t i e s t h a t s c o r e d wi t h i n t h e h i g h e s t 2 5 p e r c e n t o f c e n s u s t r a c t s a c r o s s C a l i f o r n i a May 12, 2026 Item #10 Page 217 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 12 (C a l E n v i r o S c r e e n p e r c e n t i l e s c o r e s o f 7 5 o r h i g h e r ) , in a d d i t i o n to o t h e r p a r a m e t e r s r e l a t i n g t o i n c o m e s t a t u s . ▪ Sa n D i e g o C o u n t y M u l t i -Ju r i s d i c t i o n a l H a z a r d M i t i g a t i o n P l a n pr e s e n t s i n f o r m a t i o n o n e x i s t i n g p r o c e s s e s a n d p l a n s i n p l a c e th a t a d d r e s s t h e C o u n t y a n d C a r l s b a d ’ s a b i l i t y t o p r e p a r e f o r cl i m a t e c h a ng e i m p a c t s a n d i n f o r m e d t h e a d a p t i v e c a p a c i t y di s c u s s i o n o f t h i s r e p o r t . T h e M u l t i -Ju r i s d i c t i o n a l H a z a r d Mi t i g a t i o n P l a n ( 2 0 1 8 ) w a s a l s o u s e d t o i d e n t i f y r e c e n t h i s t o r i c a l ev e n t s . ▪ 20 1 7 C a r l s b a d S e a L e v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t is a Ca l i f o r n i a C o a s ta l C o m m i s s i o n ap p r o v e d vu l n e r a b i l i t y as s e s s m e n t th a t pr e s e n t s i n f o r m a t i o n o n d i f f e r e n t c o a s t a l f l o o d sc e n a r i o s an t i c i p a t e d t o o c c u r a s a r e s u l t o f c l i m a t e c h a n g e f o r th e y e a r s 2 0 5 0 a n d 2 1 0 0 . Th e C i t y o f C a r l s b a d p r e p a r e d t h e S e a Le v e l R i s e V u l n e r a b i l i t y A ss e s s m e n t c o n s i s t e n t w i t h 2 0 1 5 Ca l i f o r n i a C o a s t a l C o m m i s s i o n S e a L e v e l R i s e P o l i c y G u i d a n c e , th e 2 0 1 2 C a l i f o r n i a A d a p t a t i o n P l a n n i n g G u i d e , a n d t h e 2 0 0 7 IC L E I -Lo c a l G o v e r n m e n t s f o r S u s t a i n a b i l i t y P r e p a r i n g f o r C l i m a t e Ch a n g e : A G u i d e b o o k f o r L o c a l , R e g i o n a l, a n d S t a t e Go v e r n m e n t s . T h i s a s s e s s m e n t w a s c o m p l e t e d u s i n g C o S M o S (a n o n l i n e t o o l d e v e l o p e d b y t h e U n i t e d S t a t e s G e o l o g i c a l Su r v e y ) t h a t d e p i c t s s e a -le v e l r i s e p r o j e c t i o n s u n d e r a v a r i e t y o f em i s s i o n s s c e n a r i o s . T h e 2 0 5 0 a n d 2 1 0 0 s e a l e v e l r i s e s c e n a r i o s we r e o v e r l a y e d w i t h 7 d i f f e r e n t a s s e t c a t e g o r i e s t o d e t e r m i n e ov e r a l l v u l n e r a b i l i t y a c r o s s t h r e e s e p a r a t e z o n e s a l o n g t h e Ca r l s b a d c o a s t l i n e . I n f o r m a t i o n f r o m t h e C a r l s b a d S e a L e v e l R i s e Vu l n e r a b i l i t y A s s e s s m e n t i s u s e d t h r o u g h o u t t h i s r e p o r t t o su p p l e m e nt c l i m a t e h a z a r d i n f o r m a t i o n , i m p a c t s , a n d a d a p t i v e ca p a c i t y . T h e s e a l e v e l r i s e p r o j e c t i o n s u s e d i n t h e C a r l s b a d S e a Le v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t a r e 1 . 6 f t b y 2 0 5 0 a n d 6 . 6 f t by 2 1 0 0 . T h e a s s e s s m e n t w a s c o n d u c t e d s p a t i a l l y u s i n g t h r e e se p a r a t e p l an n i n g z o n e s . F r o m n o r t h t o s o u t h , P l a n n i n g Z o n e 1 en c o m p a s s e s B u e n a V i s t a L a g o o n t o T a m a r a c k A v e n u e . Pl a n n i n g Z o n e 2 c o n t i n u e s s o u t h t o j u s t b e l o w P a l o m a r A i r p o r t Ro a d i n c l u d i n g t h e A g u a H e d i o n d a L a g o o n . P l a n n i n g Z o n e 3 ex t e n d s t o t h e s o u t h e r n l i m i t s o f C ar l s b a d o n t h e s o u t h s i d e o f th e B a t i q u i t o s L a g o o n . Da t a L i m i t a t i o n s Th e l i m i t a t i o n s o f t h i s r e p o r t a n d a n a l y s i s s t e m f r o m g a p s i n d a t a av a i l a b i l i t y a n d c o m p l e t e n e s s o f d a t a m e t h o d s . C e n s u s d a t a c a n mi s s p o r t i o n s o f t h e p o p u l a t i o n ( e . g . , un d o c u m e n t e d i n d i v id u a l s ) an d g e n e r a l d e m o g r a p h i c i n f o r m a t i o n m a y n o t f u l l y i d e n t i f y t h e f u l l ex t e n t o f p o p u l a t i o n s v u l n e r a b l e t o c l i m a t e c h a n g e ( C a n t w e l l 2 0 2 1 ) . Fe d e r a l E m e r g e n c y M a n a g e m e n t A g e n c y ( F E M A ) 1 0 0 -ye a r a n d 5 0 0 - ye a r f l o o d p l a i n s d o n o t a c c o u n t f o r c l i m a t e c h a n g e pr o j e c t i o n s , zo n e s a r e i n s t e a d b a s e d o n h i s t o r i c a l i n f o r m a t i o n . T h e C a l i f o r n i a De p a r t m e n t o f F o r e s t r y a n d F i r e P r o t e c t i o n ( C a l F i r e ) v e r y h i g h f i r e ha z a r d s e v e r i t y z o n e s a r e b a s e d o n v e g e t a t i o n , f i r e h i s t o r y , a n d te r r a i n b u t a l s o h a s s i m i l a r l i m i t a t i o n s i n no t p r o j e c t i n g f i r e z o n e s in t o t h e f u t u r e ( O S F M 2 0 2 2 ) . E x t r a p o l a t i n g l a n d s l i d e s a n d a i r q u a l i t y ha z a r d e x p o s u r e d a t a i n t h e c o n t e x t o f c l i m a t e c h a n g e i s d i f f i c u l t an d t h e e s t i m a t e s o f e x p o s u r e t o t h e s e h a z a r d s a r e l i k e l y t o b e un d e r e s t i m a t e d . Th e 2 0 1 7 C a r ls b a d S e a L e v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t p r e s e n t s in f o r m a t i o n b a s e d o n b e s t a v a i l a b l e g u i d a n c e . S i n c e b e i n g pr o d u c e d , t h e O c e a n P r o t e c t i o n C o u n c i l a n d C a l i f o r n i a C o a s t a l Co m m i s s i o n g u i d a n c e o f s c e n a r i o s h a s c h a n g e d , a n d t h e s c o p e o f im p a c t s h a s s u b s e q ue n t l y c h a n g e d a s w e l l . F r a m e d a s a l i v i n g do c u m e n t , t h e S e a L e v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t i s i n t e n d e d to b e r e g u l a r l y u p d a t e d w i t h b e s t a v a i l a b l e s c i e n c e t o y i e l d a m o r e ac c u r a t e d i s c u s s i o n o f v u l n e r a b i l i t y . Th e d a t a p r e s e n t e d i n Ca l -Ad a p t to o l s a r e pr o j e c t i o n s , o r e s t i m a t e s , of f u t u r e c l i m a t e . T h e l i m i t a t i o n i n t h e s e p r o j e c t i o n s i s t h a t t h e l o n g - te r m b e h a v i o r o f t h e a t m o s p h e r e i s e x p r e s s e d i n a v e r a g e s – fo r May 12, 2026 Item #10 Page 218 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 In t r o d u c t i o n Pu b l i c S a f e t y E l e m e n t U p d a t e 13 ex a m p l e , a v e r a g e a n n u a l t e m p e r a t u r e , a v e r a g e m o n t h l y r a i n f a l l , o r av e r a g e w a t e r e q u i v a l e n t o f mo u n t a i n s n o w p a c k a t a g i v e n t i m e o f ye a r . T h e a v e r a g e s d i s c u s s e d o f t e n d o w n p l a y t h e e x t r e m e s b y w h i c h da i l y w e a t h e r e v e n t s o c c u r a n d w h e n p r e s e n t e d a s a n a v e r a g e , o n l y sh o w m o d e r a t e c h a n g e s w i t h i n t h e c l i m a t e . W h a t i s o f t e n l o s t i n av e r a g e s i s t h a t t h e f re q u e n c y o f e x t r e m e s , l i k e a t m o s p h e r i c r i v e r s , ma y i n c r e a s e w h i l e l o w -mo d e r a t e i n t e n s i t y w e a t h e r e v e n t s de c r e a s e t h r o u g h t h e e n d o f t h e c e n t u r y . I n i n s t a n c e s o f m o d e l e d pr e c i p i t a t i o n p r o j e c t i o n s , i t m a i n t a i n s a n a v e r a g e s i m i l a r t o h i s t o r i c le v e l s w h i c h d o e s n o t a c c o u n t f o r a n t i c i p a t e d f l u c t u a t i o n s i n ex t r e m e s ( C E C 2 0 2 1 ) . Vu l n e r a b i l i t y S c o r i n g M e t h o d o l o g y Vu l n e r a b i l i t y s c o r i n g i s a v a l u a b l e s t e p i n t h e c l i m a t e v u l n e r a b i l i t y as s e s s m e n t p r o c e s s b e c a u s e i t i d e n t i f i e s w h i c h a s s e t s a n d po p u l a t i o n s f a c e t h e h i g h e s t t h r e a t t o c l i m a t e h a z a r d s . T h i s c a n a i d in t h e p r i o r i t i z a t i o n o f a d a p t a t i o n a c t i o n s . T h e v u l n e r a b i l it y s c o r e i s a c o m b i n a t i o n o f t h e i m p a c t a n d a d a p t i v e c a p a c i t y s c o r e . T h e im p a c t a n d a d a p t i v e c a p a c i t y s c o r e s a r e d e v e l o p e d u s i n g a qu a l i t a t i v e m e t h o d o l o g y o u t l i n e d i n t h e C a l A P G , a s s e e n i n Ta b l e 1. Im p a c t a n d a d a p t i v e c a p a c i t y s c o r e s a r e i d e n t i f i e d f o r e a c h a s s e t an d p o p u l a t i o n f o r e a c h c l i m a t e h a z a r d . T h e v u l n e r a b i l i t y s c o r e i s pr e p a r e d b y c o m b i n i n g t h e t w o s c o r e s a s d e m o n s t r a t e d i n May 12, 2026 Item #10 Page 219 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 14 Ta b l e 1 Im p a c t a n d A d a p t i v e C a p a c i t y S c o r i n g R u b r i c Sc o r e Im p a c t Ad a p t i v e C a p a c i t y Lo w Im p a c t i s u n l i k e l y b a s e d o n p r o j e c t e d e x p o s u r e ; w o u l d r e s u l t i n m i n o r co n s e q u e n c e s t o p u b l i c h e a l t h , s a f e t y , a n d / o r ot h e r m e t r i c s o f c o n c e r n . As s e t m a n a g e r s l a c k a d o p t e d p o l i c i e s o r e s t a b l i s h e d p r o g r a m s t h a t h e l p t h e co m m u n i t y o r t h e a s s e t s t h e y m a n a g e to m a n a g e fo r ch a n g e ; m a j o r c h a n g e s wo u l d b e r e q u i r e d . Me d i u m Im p a c t i s s o m e w h a t l i k e l y b a s e d o n p r o j e c t e d ex p o s u r e ; w o u l d r e s u l t i n s o m e co n s e q u e n c e s t o p u b l i c h e a l t h , s a f e t y , a n d / o r o t h e r m e t r i c s o f c o n c e r n . As s e t m a n a g e r s h a v e s o m e a d o p t e d p o l i c i e s o r e s t a b l i s h e d p r o g r a m s t h a t h e l p th e c o m m u n i t y o r t h e a s s e t s t h e y m a n a g e to ma n a g e c l i m a t e i m p a c t ; s o m e ch a n g es w o u l d b e r e q u i r e d . Hi g h Im p a c t i s h i g h l y l i k e l y b a s e d o n p r o j e c t e d e x p o s u r e ; c o n s e q u e n c e s t o p u b l i c he a l t h , s a f e t y , a n d / o r o t h e r m e t r i c s o f c o n c e r n . As s e t m a n a g e r s h a v e m a n y a d o p t e d p o l i c i e s o r e s t a b l i s h e d p r o g r a m s t h a t h e l p th e c o m m u n i t y o r t h e a s s e t s th e y m a n a g e to ma n a g e c l i m a t e i m p a c t ; m i n i m a l to n o c h a n g e s a r e r e q u i r e d . So u r c e : C a l O E S 2 0 2 0 Th e i m p a c t a n d a d a p t i v e c a p a c i t y s c o r e s a r e c o m b i n e d t o f o r m t h e v u l n e r a b i l i t y s c o r e b a s e d o n t h e a p p r o a c h p r e s e n t e d i n Ta b l e 2. T h e r a n g e o f po t e n t i a l i m p a c t s s p a n s 1 t h r o u g h 5 w i t h 4 -5 b e i n g a t h i g h e s t vu l n e r a b i l i t y , w h i c h i s c o n s i s t e n t w i t h m e t h o d o l o g y f r o m C a l A P G . Ta b l e 2 Vu l n e r a b i l i t y S c o r e M a t r i x Po t e n t i a l Im p a c t s Hi g h 3 4 5 Me d i u m 2 3 4 Lo w 1 2 3 Hi g h Me d i u m Lo w Ad a p t i v e C a p a c i t y So u r c e : C a l O E S 2 0 2 0 May 12, 2026 Item #10 Page 220 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex p o s u r e t o C l i m a t e H a z a r d s Pu b l i c S a f e t y E l e m e n t U p d a t e 15 2 Ex p o s u r e t o Cl i m a t e H a z a r d s Cl i m a t e c h a n g e i s a g l o b a l p h e n o m e n o n t h a t c a n i m p a c t l o c a l he a l t h , n a t u r a l r e s o u r c e s , i n f r a s t r u c t u r e , e m e r g e n c y r e s p o n s e , and ma n y o t h e r as p e c t s of s o c i e t y . P r o j e c t e d c h a n g e s t o t h e c l i m a t e a r e de p e n d e n t o n l o c a t i o n . T h e C a l -Ad a p t t o o l p r o v i d e s c l i m a t e d a ta fr o m g l o b a l s c a l e m o d e l s t h a t ha v e be e n l o c a l i z e d ( d o w n s c a l e d ) t o 3. 7 m i l e b y 3 . 7 -mi l e g r i d s (C E C 2 0 2 1 ) . T h e d a t a i n C a l -Ad a p t i s co n s i s t e n t wi t h i n f o r m a t i o n fr o m t h e C a l i f o r n i a F o u r t h C l i m a t e Ch a n g e A s s e s s m e n t to mo d e l f u t u r e c h a n g e s i n s p e c i f i c t y p e s of ha z a r d s wi t h i n t h i s a s s e s s m e n t . Pr o j e c t i o n s t h r o u g h o u t t h i s s e c t i o n ar e o u t l i n e d b y t w o s e p a r a t e R e p r e s e n t a t i v e C o n c e n t r a t i o n Pa t h w a y s ( R C P ) (C E C 2 0 2 1 ) . • RC P 4 . 5 i s a m e d i u m e m i s s i o n s s c e n a r i o w h e r e g l o b a l em i s s i o n s p e a k b y t h e y e a r 2 0 4 0 • RC P 8 . 5 i s a h i gh e m i s s i o n s s c e n a r i o in w h i c h gl o b a l em i s s i o n s c o n t i n u e t o r i s e t h r o u g h t h e e n d o f t h e 2 1 st ce n t u r y . Ad d i t i o n a l l y , p r o j e c t i o n s a r e f o r e c a s t e d t o m i d -ce n t u r y ( 2 0 3 5 -20 6 4 ) an d e n d -ce n t u r y ( 2 0 7 0 -20 9 9 ) as 30 -ye a r av e r a g e s to b e co m p a r e d to a m o d e l e d h i s t o r i c a l b a s e l i n e ( 1 9 6 1 -19 9 0 ) (C E C 2 0 2 1 ) . Th i s s e c t i o n p r e s e n t s i n f o r m a t i o n o n t e m p e r a t u r e a n d p r e c i p i t a t i o n , wh i c h a r e c h a r a c t e r i z e d a s c l i m a t e d r i v e r s . Th e se c t i o n t h e n pr o v i d e s i n f o r m a t i o n o n p r o j e c t e d c h a n g e s t o n a t u r a l h a z a r d s , in c l u d i n g ex t r e m e h e a t , d r o u g h t, w i l d f i r e , l a n d s l i d e s , ri v e r i n e an d st o r m w a t e r f l o o d i n g , ai r q u a l i t y , s e a l e v e l r i s e , a n d g r o u n d w a t e r wh i c h re s u l t f r o m c h a n g e s t o cl i m a t e d r i v e r s . 2. 1 Cl i m a t e D r i v e r s In Ca r l s b a d , th e cl i m a t e d r i v e r s o f co n c e r n i n c l u d e Te m p e r a t u r e an d Pr e c i p i t a t i o n . Al l p r o j e c t i o n s a r e p u l l e d f r o m t h e C a l -Ad a p t L o c a l Cl i m a t e C h a n g e S n a p s h o t t o o l an d s u p p l e m e n t e d w i t h t h e Sa n Di e g o re g i o n a l i n f o r m a t i o n f o u n d i n t h e C a l i f o r n i a F o u r t h C l i m a t e Ch a n g e A s s e s s m e n t ( C E C 2 0 2 1 , Ka l a n s k y et a l . 20 1 8 ). Te m p e r a tu r e Ca r l s b a d h a s a n a v e r a g e m a x i m u m t e m p e r a t u r e o f 7 3 . 4 °F an d a n av e r a g e m i n i m u m t e m p e r a t u r e o f 5 1 . 9 ° F (C E C 2 0 2 1 ) . Th e a v e r a g e ma x i m u m an d m i n i m u m te m p e r a t u r e s a r e e x p e c t e d t o i n c r e a s e in Ca r l s b a d w i t h m i d -ce n t u r y p r o j e c t i o n s s h o w i n g a 3 °F (R C P 4 . 5 ) t o 4°F (R C P 8 . 5 ) i n c r e a s e i n t e m p e r a t u r e m a x i m u m a n d m i n i m u m s (C E C 2 0 2 1 ) . En d -Ce n t u r y p r o j e c t i o n s s h o w a 4°F (R C P 4 . 5 ) t o 7° F (R C P 8 . 5 ) in c r e a s e i n C a r l s b a d an d g e n e r a l l y th r o u g h o u t t h e S a n Di e g o re g i o n a 5°F to 10 °F in c r e a s e (CE C 2 0 2 1 , Ka l a n s k y et a l . 20 1 8 ) . Te m p e r a t u r e i n c r e a s e s a f f e c t s ex t r e m e h e a t a n d w a r m n i g h t s , dr o u g h t , w i l d f i r e , an d a i r q u a l i t y . Gl o b a l t e m p e r a t u r e i n c r e a s e s ca u s e o c e a n t e m p e r a t u r e s t o r i s e w h i c h e x p a n d s o c e a n w a t e r s . Gl a c i e r s , i c e c a p s , a n d i c e s h e e t s m e l t f r o m r i s i n g t e m p e r a t u r es wh i c h f u r t h e r c o n t r i b u t e t o s e a l e v e l r i s e (K a l a n s k y e t a l . 2 0 1 8 ) . Pr e c i p i t a t i o n Cu r r e n t l y t h e a m o u n t o f p r e c i p i t a t i o n r e c e i v e d b y S a n D i e g o C o u n t y is n o t s u f f i c i e n t i n a d d r e s s i n g t h e p o p u l a t i o n or in f r a s t r u c t u r e ne e d s an d i s su p p l e m e n t e d by e x t e r n a l s o ur c e s su c h a s t h e C o l o r a d o Riv e r Bas i n an d t h e C a r l s b a d D e s a l i n a t i o n P l a n t (K a l a n s k y et a l . 20 1 8 ). May 12, 2026 Item #10 Page 221 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 16 Ca r l s b a d p r e c i p i t a t i o n p r o j e c t i o n s un d e r R C P 8 . 5 d e m o n s t r a t e a 0. 6 - in c h de c r e a s e b y m i d -ce n t u r y a n d 1 -in c h d e c r e a s e b y e n d -ce n t u r y i n an n u a l p r e c i p i t a t i o n t o ta l s (C E C , 2 0 2 1 ) . Ho w e v e r , as a l r e a d y ob s e r v e d i n r e c e n t de c a d e s pr e c i p i t a t i o n c h a n g e s a r e l a r g e l y ob s e r v e d a s m o r e e x t r e m e v a r i a b i l i t y w i t h i n t e n s e l y w e t y e a r s fo l l o w e d b y e x t r e m e d r o u g h t s (Ka l a n s k y Et a l . 20 1 8 ). It i s p r o j e c t e d th a t th e w e t t e s t d a y e v e r y y e a r w i l l i nc r e a s e f r o m 1 0 -30 % b y t h e en d o f t h e c e n t u r y i n t h e S a n D i e g o R e g i o n ( Ka l a n s k y Et a l . 20 1 8 ). The r e w i l l b e m o r e d r y p e r i o d s p u n c t u a t e d b y i n c r e a s e d pr e c i p i t a t i o n i n t e n s i t i e s o f t h e l a r g e s t s t o r m s o r w e t p e r i o d s , pr o d u c i n g li t t l e n e t c h a n g e i n p r e c i p i t a t i o n t o t a l s b u t m o r e e x t r e m e co n d i t i o n s ( Ka l a n s k y Et a l . 20 1 8 ). Pr e c i p i t a t i o n c h a n g e s a r e ex p e c t e d t o af f e c t w i l d f i r e , d r o u g h t , l a n d s l i d e s , r i v e r i n e s t o r m w a t e r fl o o d i n g , a n d a i r q u a l i t y . 2. 2 Ha z a r d s Thi s se c t i o n o u t l i n e s p r o j e c t e d c h a n g e s fo r t h e f o l l o w i n g cl i m a t e ha z a r d s : Ex t r e m e H e a t Dr o u g h t Wi l d f i r e La n d s l i d e s Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Ai r Q u a l i t y Se a Le v e l R i s e Hi s t o r i c a l P r e c i p i t a t i o n E x t r e m e s Pre c i p i t a t i o n v o l a t i l i t y s i m i l a r t o w h a t h a s b e e n p r o j e c t e d wi t h i n t h e C a l i f o r n i a F o u r t h C l i m a t e C h a n g e A s s e s s m e n t c a n be o b s e r v e d o v e r t h e l a s t t w o d e c a d e s w h e r e w e t y e a r s i n 20 0 5 , 2 0 1 1 , a n d 2 0 1 7 h a v e b e e n o f f s e t b y e x t e n d e d d r o u g h t s in 2 0 0 1 -20 0 4 , 2 0 0 7 -20 1 0, 2 0 1 2 -20 1 5 , a n d 2 0 1 8 t o p r e s e n t (K a l a n s k y E t al. 20 1 8 ) . May 12, 2026 Item #10 Page 222 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex p o s u r e t o C l i m a t e H a z a r d s Pu b l i c S a f e t y E l e m e n t U p d a t e 17 Ex t r e m e H e a t Ex t r e m e h e a t wa v e s ar e d e f i n e d a s mu l t i p l e da y s i n w h i c h t h e d a i l y ma x i m u m t e m p e r a t u r e e x c e e d s t h e 9 8 th pe r c e n t i l e v a l u e o f t h e hi s t o r i c a l a v e r a g e ( C E C 2 0 2 1 ) . Fo r C a r l s b a d , t h e t h r e s h o l d t e m p e r a t u r e i s 92 . 5 °F (C E C 20 2 1 ) . In c r e a s e d fr e q u e n c y o f in d i v i d u a l ex t r e m e h e a t d a y s an d ex t e n d e d d u r a t i o n o f ex t r e m e h e a t w a v e s ca n re s u l t i n i n c r e a s e d p u b l i c he a l t h r i s k s , p a r t i c u l a r l y t o v u l n e r a b l e p o p u l a t i o n s l i k e o l d e r a d u l t s , y o u n g ch i l d r e n , an d i n d i v i d u a l s w i t h un d e r l y i n g c h r o n i c d i s e a s e s , t h r o u g h h e a t - re l a t e d i l l n e s s e s a n d i n c r e a s e d ve c t o r -bo r n e i l l n e s s e s . Wa r m n i g h t s c a n fu r t h er e x a c e r b a t e t h e r i s k o f h e a t i l l n e s s b e c a u s e t h e y a f f e c t t h e b o d y ’ s ab i l i t y t o c o o l a f t e r a d a y o f h e i g h t e n e d t e m p e r a t u r e s . Ca r l s b a d h a s hi s t o r i c a l l y e x p e r i e n c e d 4 w a r m n i g h t s a y e a r a n d i s p r o j e c t e d t o e x p e r i e n c e a mi d -ce n t u r y t o t a l o f 3 2 ni g h t s (R C P 8 . 5) an d a n e n d -ce n t u r y t o t a l o f 3 3 ( R C P 4. 5 ) t o 7 7 n i g h t s ( R C P 8 . 5 ) (C E C 2 0 2 1 ) . Ex t r e m e h e a t e v e n t s a n d w a r m n i g h t s ar e e x p e c t e d t o o c c u r a c r o s s m o r e h e a t w a v e e v e n t s a s w e l l ( C E C 2 0 2 1 ) . Ex t r e m e h e a t c a n a l s o d a m a g e r o a d w a y s , o v e r l o a d e l e c t r i c a l g r i d s y s t e m s, an d r e s u l t i n v e g e t a t i o n d i e -of f o r s t r e s s . May 12, 2026 Item #10 Page 223 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 18 Dr o u g h t Cl i m a t e c h a n g e w i l l i n c r e a s e t h e l i k e l i h o o d t h a t l o w -pr e c i p i t a t i o n ye a r s w i l l c o i n c i d e w i t h a b o v e -av e r a g e t e m p e r a t u r e y e a r s . Wa r m i n g te m p e r a t u r e s i n c r e a s e s e a s o n a l d r y n e s s a n d t h e l i k e l i h o o d o f d r o u gh t d u e t o de c r e a s e d s u p p l y o f m o i s t u r e a n d i n c r e a s e d a t m o s p h e r i c d e m a n d f o r m o i s t u r e as e v a p o r a t i o n f r o m b a r e s o i l s a n d e v a p o t r a n s p i r a t i o n f r o m p l a n t s i n c r e a s e s . Th e i n c r e a s e d m o i s t u r e l o s s f r o m s o i l s a n d v e g e t a t i o n a m p l i f i e s d r y n e s s d u r i n g pe r i o d s w i t h o u t p r e c i p i t a t i o n . In C a l i f o r n i a ’ s h i g h l y v a r i a b l e c l i m a t e s e t t i n g , cl i m a t e m o d e l s p r o j e c t l e s s f r e q u e n t b u t m o r e e x t r e m e d a i l y p r e c i p i t a t i o n , w i t h ye a r -to -ye a r p r e c i p i t a t i o n b e c o m i n g m o r e v o l a t i l e a n d t h e n u m b e r o f d r y y e a r s in c r e a s i n g (K a l a n s k y et a l . 20 1 8 ). Th e d u r a t i o n o f d r y s p e l l s i s p r o j e c t e d t o v a r y b a s e d o n e m i s s i o n s s c e n a r i o . L i k e pa t t e r n s i n p r e c i p i t a t i o n s o m e o f t h e a n n u a l v a r i a b i l i t y i s o b s c u r e d w i t h i n 3 0 - ye a r a v e r a g e s . De s p i t e t h i s , t h e c l e a r t r e n d i s f o r m a x i m u m l e n g t h s o f d r y s p e l l s to i n c r e a se t h r o u g h t h e e n d o f c e n t u r y (C E C 2 0 2 1 ) . Dr o u g h t c a n a f f e c t v u l n e r a b l e p o p u l a t i o n s a s w e l l a s e c o n o m i c p r o d u c t i v i t y th r o u g h o u t Ca r l s b a d . V u l n e r a b i l i t i e s f o r n a t u r a l r e s o u r c e s ca n in c l u d e s t r e s s e d ve g e t a t i o n a n d h a b i t a t d e p l e t i o n w h i l e po p u l a t i o n s m a y b e m o r e v u l n e r a b l e t o he a t s t r e s s a n d d e h y d r a t i o n (K a l a n s k y et a l . 20 1 8 ) . May 12, 2026 Item #10 Page 224 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex p o s u r e t o C l i m a t e H a z a r d s Pu b l i c S a f e t y E l e m e n t U p d a t e 19 Wi l d f i r e Th e o c c u r r e n c e s o f w i l d f i r e s h a v e i n c r e a s e d s i g n i f i c a n t l y wi t h i n C a l i f o r n i a i n f r e q u e n c y , a r e a , a n d s e v e r i t y ov e r t h e pa s t t w o d e c a d e s ( K a l a n s k y et a l . 2 0 1 8 ) . Fi r e s o c c u r r i n g i n c i t y l i m i t s oc c u r r e d i n J a n u a r y 2 0 2 2 , J a n u a r y 2 0 2 1 , a n d M a y 2 0 1 4 . Fo r C a r l s b a d th i s t r e n d i s p r o j e c t e d t o f o l l o w t h r o u g h m i d a n d e n d -ce n t u r y pr o j e c t i o n s ( C E C 2 0 2 1 ) . W i l d f i r e e v e n t s a r e a pr o d u c t o f t e m p e r a t u r e in c r e a s e s c o m p o u n d e d w i t h p r e c i p i t a t i o n d e c l i n e s c r e a t i n g w i l d f i r e pr o n e c o n d i t i o n s . S a n D i e g o C o u n t y ’ s w i l d f i r e s a r e i n f l u e n c e d b y Sa n t a A n a W i n d s , d o w n e d p o w e r l i n e s , a n d f u e l a v a i l a b i l i t y ( K a l a n s k y et a l . 2 0 1 8 ) . M o s t a r e a s i n C a r ls b a d f a c e s i g n i f i c a n t w i l d f i r e r i s k . Th e s e a r e a s a r e ca t e g o r i z e d a s C A L F I R E ve r y h i g h f i r e h a z a r d s e v e r i t y zo n e s ( V H F H S Z ) , sh o w n i n Fi g u r e 2. T h e r e a re s e v e r a l c r i t i c a l f a c i l i t i e s wi t h i n t h e V H F H S Z i n c l u d i n g 4 p a r k s , 3 s c h o o l s , 2 f i r e s t a t i o n s , t h e po l i c e d e p a r t m e n t , a n d t h e w a s t e w a t e r tr e a t m e n t fa c i l i t y . S e v e r a l ro a d s a n d r e s i d e n t i a l a r e a s a r e a l s o l o c a t e d w i t h i n t h e Cit y ’ s f i r e zo n e . Se v e r a l f i r e s h a ve a f f l i c t e d t h e b o u n d a r i e s o f C a r l s b a d i n c l u d i n g th e B o u l e v a r d , P a r k , a n d P o i n s e t t i a f i r e s . Wi l d f i re s c a n c r e a t e r i s k o f in j u r y , d e a t h , o r f i n a n c i a l h a r d s h i p i f p e r s o n a l p r o p e r t y i s d a m a g e d a s we l l a s p h y s i c a l d a m a g e t o a l l ot h e r a s s e t s cr e a t i n g c a s c a d i n g r i s k s fo r vu l n e r a b l e po p u l a t i o n s w h e n in f r a s t r u c t u r e is d a m a g e d or o f f -li n e in c l u d i n g c o m m u n i c a t i o n s in f r a s t r u c t u r e . May 12, 2026 Item #10 Page 225 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 20 Fi g u r e 2 Wi l d f i r e H a z a r d S e v e r i t y Z o n e s i n C a r l s b a d May 12, 2026 Item #10 Page 226 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex p o s u r e t o C l i m a t e H a z ar d s Pu b l i c S a f e t y E l e m e n t U p d a t e 21 La n d s l i d e s Tr i g g e r e d b y e x t r e m e b o u ts o f p r e c i p i t a t i o n o n wi l d f i r e bu r n s c a r s , th e s u s c e p t i b i l i t y o f th e l a r g e r S a n D i e g o r e g i o n to l a n d s l i d e s i s pr o j e c t e d t o i n c r e a s e a s p r e c i p i t a t i o n v a r i a b i l i t y i n c r e a s e s a n d w i l d f i r e s in c r e a s e i n f r e q u e n c y , a r e a , a n d s e v e r i t y (K a l a n s k y et a l . 20 1 8 ) . Th e Sa n D i e g o Re g i o n is pr o j e c t e d t o e x p e r i e n c e in c r e a s e s t o w i l d f i r e a n d p r e c i p i t a t i o n an d su b s e q u e n t l y l a n d s l i d e -pr o n e c o n d i t i o n s (C E C 2 0 2 1 ) . La n d s l i d e s f o r t h e Cit y oc c u p y r e g i o n s t h a t o v e r l a p w i t h w i l d f i r e z o n e s , a n d a l o n g s l o p e d a r e a s i n t h e Ca r l s b a d h i l l s ( C D O C 2 0 2 1 ) . Th e S a n D i e g o C o u n t y M u l t i -Ju r i s d i c t i o n a l H a z a r d Mi t i g a t i o n P l a n e x p o s u r e a s s e s s m e n t d e t a i l s s p e c i f i c a s s e t s a t r i s k w i t h i n Ca r l s b a d t o l a n d s l i d e s a s w e l l a s t h e a f f l i c t e d p o p u l a t i o n t o t a l f o r t h e Cit y . May 12, 2026 Item #10 Page 227 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 22 Ri v e r i n e an d S t o r m w a t e r F l o o d i n g Cl i m a t e c h a n g e m a y c a u s e l o w -ly i n g a r e a s t h r o u g h o u t Ca r l s b a d to ex p e r i e n c e m o r e f r e q u e n t f l o o d i n g a n d c o u l d i n c r e a s e t h e e x t e n t o f 10 0 -ye a r f l o o d s. R i v e r i n e f l o o d i n g i s p r o j e c t e d t o i n c r e a s e a s p r e c i p i t a t i o n ex t r e m e s i n c r e a s e s ( C E C , 2 0 2 1 ) . Fi g u r e 3 ma p s t h e 1 0 0 - an d 5 0 0 -ye a r fl o o d p l a i n s w i t h i n Ca r l s b a d . S t o r m w a te r s y s t e m s m a y b e o v e r w h e l m e d m o r e fr e q u e n t l y a s m o r e e x t r e m e r a i n e v e n t s o c c u r , c a u s i n g l o c a l i z e d f l o o d i n g wh i c h c o u l d i m p a c t p r o p e r t i e s a n d c l o s e s t r e e t s . Wh i l e n o cr i t i c a l fa c i l i t i e s o r in f r a s t r u c t u r e o c c u p y 1 0 0 -ye a r o r 5 0 0 -ye a r f l o o d p l a i n s i n C a r l s b a d , t h e co m m u n i t y o f R a n c h o C a r l s b a d i s lo c a t e d wi t h i n t h e 1 0 0 -ye a r f l o o d p l a i n . Se v e r a l p a r k s , f i r e s t a t i o n s , s c h o o l s , w a s t e w a t e r f a c i l i t i e s , a n d e l e c t r i c p o w e r fa c i l i t i e s a bo r d e r ex i s t i n g f l o o d p l a i n s . Fl o o d i n g i m p a c t s di r e c t l y c r e a t e p h y s i c a l d a m a g e s f r o m in u n d a t i o n (K a l a n s k y et a l . 20 1 8 ) . F l o o d i n g c a n a l s o ca s c a d e i n t o p o w e r , w a s t e w a t e r , an d st o r m dr a i n a g e i n f r a s t r u c t u r e , ex a c e r b a t i n g p u b l i c h e a l t h c o n c e r n s . May 12, 2026 Item #10 Page 228 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex p o s u r e t o C l i m a t e H a z a r d s Pu b l i c S a f e t y E l e m e n t U p d a t e 23 Fi g u r e 3 10 0 a n d 5 0 0 Y e a r F l o o d p l a i n i n C a r l s b a d May 12, 2026 Item #10 Page 229 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 24 Ai r Q u a l i t y Wo r s e n i n g a ir qua l i t y du e t o c l i m a t e c h a n g e ca n c r e a t e re s p i r a t o r y i s s u e s f o r v u l n e r a b l e p o p u l a t i o n s an d im p a c t in d o o r ar e a s w i t h o u t a d e q u a t e a i r f i l t r a t i o n s y s t e m s . Th e r e a r e s e v e r a l t y p e s o f ai r q u a l i t y d e c l i n e s o u r c e s f o u n d b e l o w : ▪ Du s t . In c r e a s e d t e m p e r a t u r e l e a d s t o d r y , d u s t y c o n d i t i o n s a l s o as s o c i a t e d w i t h d r o u g h t (K a l a n s k y et a l . 20 1 8 ) . ▪ Sm o g . In c r e a s e s i n a m b i e n t t e m p e r a t u r e c a n l e a d t o h i g h e r ra t e s of sm o g al s o r e f e r r e d t o a s oz o n e . G r o u n d -le v e l o z o n e s p e c i f i c a l l y w i l l be e x p e r i e n c e d a t h i g h e r r a t e s l e a d i n g t o r a i s e d c a r d i o v a s c u l a r a n d re s p i r a t o r y m o r b i d i t y a n d m o r t a l i t y r a t e s ( C D P H , 2 0 1 4 ) . G r o u n d -le v e l oz o n e h a s a l s o b e e n s h o w n t o h a v e p a r t i c u l a r l y d i s p r o p o r t i o n a t e ad v e r s e i m p a c t s o n p o p u l a t i o n s e x p e r i e n c i n g h o m e l e s s n e s s a n d lo w e r m ed i a n i n c o m e ( P N A S , 2 0 2 1 ) . Ca r l s b a d wi l l e x p e r i e n c e in c r e a s e s i n o z o n e c o n c e n t r a t i o n s i n p a r a l l e l t o t e m p e r a t u r e in c r e a s e s . ▪ Fe w e r N a t u r a l F i l t r a t i on s . Pr e c i p i t a t i o n v a r i a b i l i t y a n d l o n g p e r i o d s o f dr y s p e l l s l e a d to le s s r e l i a b l e a i r q u a l i t y f o r t h e e n t i r e re g i o n . Mo i s t u r e i n t h e a i r c a n f i l t e r p o l l u t a n t s a n d p r o v i d e f o r o v e r a l l im p r o v e d c o n d i t i o n s . ▪ Wi l d f i r e Sm o k e . Te m p e r a t u r e , s e v e r e w i l d f i r e c o n d i t i o n s , a n d t h e ar e a b u r n e d b y w i l d f i r e s t h r o u g h o u t t h e s t a t e h a s i n c r e a s e d an d w i l l co n t i n u e t o i n c r e a s e . H ig h er t e m p e r a t u r e s a c c o m p a n i e d b y a n in c r e a s e i n t h e i n c i d e n c e a n d e x t e n t o f l a r g e w i l d f i r e s wi l l l e a d t o in c r e a s e d w i l d f i r e s m o k e a n d as s o c i a t e d t o x i n s a n d ai r p o l l u t i o n (K a l a n s k y et. a l 2 0 1 8 ) . May 12, 2026 Item #10 Page 230 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ex p o s u r e t o C l i m a t e H a z a r d s Pu b l i c S a f e t y E l e m e n t U p d a t e 25 Se a L e v e l R i s e Se a l e v e l r i s e (S L R ) ca n n e g a t i v e l y i m p a c t th e co a s t a l ar e a o f C a r l s b a d t h r o u g h re g u l a r t i d a l in u n d a t i o n , e r o s i o n , a n d s t o r m f l o o d i n g . C l i m a t e c h a n g e i s ex p e c t e d t o i n c r e a s e t h e r a t e o f s e a l e v e l r i s e d e p e n d e n t o n th e e x t e n t o f w a r m i n g t e m p e r a t u r e s . Th e C a r l s b a d S e a L e v e l Ri s e V u l n e r a b i l i t y A s s e s s m e n t ev a l u a t e d 1. 6 f e e t o f s e a l e v e l ri s e b y 2 0 5 0 a n d 6 . 6 f e e t o f s e a l e v e l r i s e b y 2 1 0 0 . Gr o u n d w a t e r i n u n d a t i o n b r o u g h t a b o u t b y S e a L e v e l R i s e wa s d e t e r m i n e d t o h a v e l i t t l e ef f e c t on t h e c o m m u n i t y (Wo o d e t al . 20 2 0 ) . Se e Fi g u r e 4 fo r a r e a s p o t e n t i a l l y t i d a l l y in u n d a t e d a n d ov e r l a i d w i t h c r i t i c a l f a c i l i t i e s. Th e r e a r e 5 ha z a r d z o n e s o u t l i n e d w i t h i n t h e C a r l s b a d S e a L e v e l Ri s e Vu l n e r a b i l i t y A s s e s s m e n t f o u n d b e l o w . ▪ Co a s t a l I n u n d a t i o n H a z a r d Z o n e ▪ La g o o n In u n d a t i o n H a z a r d Z o n e ▪ Bl u f f H a z a r d Z o n e ▪ Co a s t a l F l o o d H a z a r d Z o n e ▪ La g o o n Fl o o d H a z a r d Z o n e Ea c h o f t h e s e ha z a r d zo n e s ar e ba s e d o n m o d e l i n g co n d u c t e d t o a n a l y z e im p a c t s o f s e a l e v e l r i s e . T h e z o n e s we r e u s e d t o b e t t e r u n d e r s t a n d w h i c h a s s e t s w o u l d b e af f e c t e d . Ad d i t i o n a l , qu a l i t a t i v e as s e s s m e n t s w e r e p r o v i d e d on im p a c t s of s e a l e v e l r i s e o n vi s u a l r e s o u r c e s , c u l t u r a l re s o u r c e s , s a l t w a t e r i n t r u s i o n , a n d l i f e g u a r d se rv i c e s .I m p a c t s w e r e c h a r a c t e r i z e a s n o n e to m o d e r a t e (C a r l s b a d 2 0 1 7 ) . May 12, 2026 Item #10 Page 231 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 26 Fi g u r e 4 Se a L e v e l R i s e i n C a r l s b a d T h r o u g h 2 0 5 0 a n d 2 1 0 0 May 12, 2026 Item #10 Page 232 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Se n s i t i v i t y Pu b l i c S a f e t y E l e m e n t U p d a t e 27 3 Se n s i t i v i t y Po p u l a t i o n s a n d a s s e t s a r e a f f e c t e d b y c l i m a t e c h a n g e de p e n d i n g on t h e i r s e n s i t i v i t y t o c l i m a t e h a z a r d s . Se n s i t i v i t y i s t h e d e g r e e t o wh i c h a s p e c i e s , n a t u r a l s y s t e m , c o m m u n i t y , a s s e t , o r o t h e r as s o c i a t e d s y s t e m w o u l d b e a f f e c t e d b y c h a n g i n g c l i m a t e c o n d i t i o n s (C a l O E S 2 0 2 0 ) . Th i s s e c t i o n i d e n t i f i e s s e n s i t i v e po p u l a t i o n s a n d as s e t s w i t h i n C a r l s b a d . P o t e n t i a l i m p a c t s f r o m t h e c l i m a t e h a z a r d s of c o n c e r n o n s e n s i t i v e p o p u l a t i o n s a n d a s s e t s a r e p r e s e n t e d i n t h e Vu l n e r a b i l i t y A n a l y s i s se c t i o n . As s e t s a r e g r o u p e d i n t h e f o l l o w i n g ma n n e r : Vu l n e r a b l e P o p u l a t i o n s Na t u r a l a n d R e c r e a t i o n a l R e s o u r c e s Bu i l d i n g s a n d F a c i l i t i e s In f r a s t r u c t u r e a n d C r i t i c a l S e r v i c e s 3. 1 Vu l n e r a b l e P o p u l a t i o n s Wh i l e a l l pe o p l e i n a c o m m u n i t y w i l l e x p e r i e n c e c l i m a t e ch a n g e , s o m e m a y b e m o r e a f f e c t e d t h a n o t h e r s . F o r ex a m p l e , o l d e r a d u l t s an d y o u n g c h i l d r e n m a y b e m o r e at -ri s k t o h e a t i l l n e s s d u r i n g a n e x t r e m e h e a t e v e n t . S e v e r a l f a c t o r s in f l u e n c e sen s i t i v i t y t o c l i m a t e h a z ar d s i n c l u d i n g an in d i v i d u a l ’s he a l t h , a g e , a n d a b i l i t y , so c i e t a l d i s a d v a n t a g e s , in e q u i t i e s i n a c c e s s to h e a l t h c a r e , e c o n o m i c o p p o r t u n i t y , e d u c a t i o n a n d o t h e r re s o u r c e s , a n d in e q u i t i e s f o u n d i n b a s i c n e e d s a n d e x p o s u r e t o en v i r o n m e n t a l st r e s s o r s ( C a l O E S 20 2 0 ) . Vu l n e r a b l e po p u l a t i o n s ex p e r i e n c e h e i g h t e n e d r i s k t o c l i m a t e c h a n g e a n d h a v e f e w e r re s o u r c e s t o a d a p t a n d r e c o v e r f r o m c l i m a t e c h a n g e i m p a c t s . Fo l l o w i n g gu i d a n c e f r o m th e S o u t h e r n C a l i f o r n i a A d a p t a t i o n Pl a n n i n g G u i d e , v u l n e r a b l e p o p u l a t i o n g r o u p s w e re i d e n t i f i e d f o r th e Ci t y (SC A G 2 0 2 0 ) . Ca r l s b a d ha s s e v e r a l v u l n e r a b l e p o p u l a t i o n s th a t w i l l d i s p r o p o r t i o n a t e l y e x p e r i e n c e c l i m a t e c h a n g e l i s t e d i n Ta b l e 3 be l o w . May 12, 2026 Item #10 Page 233 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 28 Ta b l e 3 Vu l n e r a b l e P o p u l a t i o n s i n C a r l s b a d Po p u l a t i o n Po p u l a t i o n D e s c r i p t i o n To t a l N u m b e r , Pe r c e n t a g e o f Po p u l a t i o n o r H o u s e h o l d s In d i v i d u a l s w i t h e d u c a t i o n a t t a i n m e n t l e s s t h a n 4 y e a r s o f c o l l e g e Pe r c e n t o f p e o p l e o v e r a g e 2 5 w i t hou t a b a c h e l o r ' s e d u c a t i o n o r h i g h e r 41% Re n t e r s Ho u s i n g u n i t s t h a t a r e r e n t e r o c c u p i e d 35% No n -wh i t e C o m m u n i t i e s Al l i n d i v i d u a l s t h a t d o n o t i d e n t i f y a s w h i t e 27 % Ol d e r a d u l t s In d i v i d u a l s 6 5 y e a r s o r o l d e r 17% In d i v i d u a l s w i t h A s t h m a Pe r c e n t o f p e o p l e w i t h A s t h m a 8% Lo w I n c o m e In d i v i d u a l s b e l o w t h e f e d e r a l p o v e r t y l e v e l 7% In d i v i d u a l s w i t h n o h e a l t h i n s u r a n c e In d i v i d u a l s a g e d 1 8 t o 6 4 y e a r s o l d c u r r e n t l y u n i n s u r e d 6% Ho u s e h o l d s w i t h o u t b r o a d b a n d i n t e r n e t Ho u s e h o l d s w i t h o u t ac c e s s t o b r o a d b a n d i n t e r n e t . 6% In d i v i d u a l s w i t h d i s a b i l i t i e s In d i v i d u a l s w i t h a c c e s s a n d f u n c t i o n a l n e e d s ( p h y s i c a l a n d m e n t a l ) 5% Ch i l d r e n In d i v i d u a l s 5 y e a r s a n d y o u n g e r 5% Mi l i a r y V e t e r a n s In d i v i d u a l s w h o h a v e s e r v e d b u t a r e n o t cu r r e n t l y s e r v i n g i n t h e U S A r m e d F o r c e s 5% Un e m p l o y e d Pe r c e n t a g e o f p o p u l a t i o n a g e d 2 5 -64 w h o a r e un em p l o y e d 4% Ho u s e h o l d s w i t h o u t a c o m p u t e r Ho u s e h o l d s w i t h o u t a c c e s s t o a c o m p u t e r . 3% Li n g u i s t i c a l l y I s o l a t e d Ho u s e h o l d s w i t h i n d i v i d u a l s w h o a r e n o n o r l i m i t e d E n g l i s h -sp e a k i n g 3% Ou t d o o r W o r k e r s In d i v i d u a l s w h o a r e e m p l o y e d , 1 6 a n d o l d e r , a n d w o r k o u t d o o r s 2% Is o l a t e d I n d i v i d u a l s Ho u s e h o l d s w i t h o u t a c c e s s t o a v e h i c l e 2% Pe o p l e e x p e r i e n c i n g h o m e l e s s n e s s In di v i d u a l s w h o c u r r e n t l y l a c k f i x e d , r e g u l a r , a n d a d e q u a t e h o u s i n g 14 7 In d i v i d u a l s w i t h C a r d i o v a s c u l a r D i s e a s e Ag e -ad j u s t e d r a t e o f e m e r g e n c y d e p a r t m e n t v i s i t s f o r h e a r t a t t a c k s p e r 1 0 , 0 0 0 . 9 So u r c e : T h e p e r c e n t a g e s u s e d i n t h i s t a b l e w e r e a c q u i r e d f r o m t h e C a l i f o r n i a H e a l t h y P l a c e s I n d e x 3 . 0 , U. S . C e n s u s , 2 0 1 5 -20 1 9 A m e r i c a n C o m m u n i t y S u r v e y ( A C S ) , a n d C a l E n v i r o S c r e e n May 12, 2026 Item #10 Page 234 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Se n s i t i v i t y Pu b l i c S a f e t y E l e m e n t U p d a t e 29 Vu l n e r a b l e p o p u l a t i o n s w e r e g r o u p e d b a s e d o n po t e n t i a l e x p o s u r e to c l i m a t e h a z a r d s , a c c e s s t o r e s o u r c e s t o p r e p a r e , c o p e w i t h , o r re c o v e r f r o m c l i m a t e h a z a r d s , w h e t h e r i n d i v i d u a l s f a c e s o c i e t a l di s a d v a n t a g e s , o r i f i n d i v i d u a l s h a v e h e a t h c o n d i t i o n s o r h e a l t h se n s i t i v i t i e s t h a t l e a v e t h e m v u l n e r a b l e t o c l i m a t e h a z a r d s . O f t e n in d i v i d u a l s h a v e c h a r a c t e r i s t i c s t h a t m a k e t h e m v u l n e r a b l e i n a va r i e t y o f w a y s ; h o w e v e r , f o r t h e p u r p o s e o f t h i s a s s e s s m e n t , t h e y we r e g r o u p e d b a s e d o n t h e s e n s i t i v i t y t h a t i n c r e a s e s t h e i r r i s k t h e mo s t . V u l n e r a b l e p o p u l a t i o n s a r e gr o u p e d b e l o w : ▪ In d i v i d u a l s w i t h H i g h O u t d o o r E x p o s u r e . Ou t d o o r w o r k e r s , a n d pe o p l e e x p e r i e n c i n g h o m e l e s s n e s s . ▪ Un d e r -Res o u r c e d Ind i v i d u a l s . Lo w -in c o m e , une m p l o y e d , ind i v i d u a l s w i t h n o h e a l t h i n s u r a n c e , hou s e h o l d s w i t h o u t a co m p u t e r , hou s e h o l d s w i t h o u t a b r o a d b a n d i n t e r n e t , ren t e r s , iso l a t e d i n d i v i d u a l s , ind i v i d u a l s w i t h e d u c a t i o n a l a t t a i n m e n t o f le s s t h a n 4 y e a r s o f c o l l e g e ▪ In d i v i d u a l s F a c i n g S o c i e t a l B a r r i e r s . No n -wh i t e c o m m u n i t i e s , li n g u i s t i c a l l y i s o l a t ed , A m e r i c a n N a t i v e a n d N a t i v e A l a s k a n , a n d Un d o c u m e n t e d i n d i v i d u a l s . ▪ In d i v i d u a l s w i t h C h r o n i c H e a l t h C o n d i t i o n s o r H e a l t h R e l a t e d Se n s i t i v i t i e s . Ol d e r a d u l t s , ch i l d r e n , I n d i v i d u a l s w i t h d i s a b i l i t i e s , in d i v i d u a l s w i t h a s t h m a , ind i v i d u a l s w i t h c a r d i o v a s c u l a r d i s e a s e , an d M i l i t a r y V e t e r a n s . 3. 2 Na t u r a l an d R e c r e a t i o n a l Re s o u r c e s Na t u r a l an d r e c r e a t i o n a l re s o u r c e s w i t h i n C a r l s b a d a s de t a i l e d i n t h e O p e n S p a c e E l e m e n t o f t h e G e n e r a l P l a n in c l u d e th e o c e a n an d b e a c h e s , co a s t a l p u b l i c a c c e s s w a y s , th r e e l a g o o n s ( A g u a H e d i o n d a , B a t i q u i t o s a n d B u e n a V i s t a , Ca l i f o r n i a ’ s f i r s t e c o l o g i c a l r e s e r v e ) , wa t e r w a y s , p a r k s , hi l l s i d e s , an d th e ur b a n f o r e s t . Th e s e va r i o u s re s o u r c e s pr o v i d e h a b i t a t , s o u r c e s of c o m m u n i t y r e s i l i e n c e , r e c r e a ti o n , a n d e c o n o m i c p r o d u c t i v i t y t o th e Cit y . T h e s e r e s o u r c e s a r e s p r e a d t h r o u g h o u t t h e Cit y an d f a c e va r i o u s l e v e l s o f e x p o s u r e t o c l i m a t e h a z a r d s . 3. 3 Bu i l di n g s a n d F a c i l i t i e s Cl i m a t e c h a n g e i s e x p e c t e d t o a m p l i f y e x t r e m e w e a t h e r an d c l i m a t e h a z a r d s i n C a r l s ba d . A ju r i s d i c t i o n ’ s vu l n e r a b i l i t y i n c r e a s e s w h e n b u i l d i n g s a n d f a c i l i t i e s a r e no t d e s i g n e d , o p e r a t e d , a n d / o r m a i n t a i n e d t o f u n c t i o n e f f e c t i v e l y un d e r e x t r e m e w e a t h e r c o n d i t i o n s or c a n b e d a m a g e d b y e x t r e m e we a t h e r c o n d i t i o n s . Th e f o l l o w i n g b u i l d i n g s a n d fa c i l i t i e s w o u l d b e pa r t i c u l a r l y s e n s i t i v e t o c l i m a t e c h a n g e : mu n i c i p a l an d p u b l i c bu i l d i n g s , e d u c a t i o n a l f a c i l i t i e s , h o s p i t a l s , r e s i d e n t i a l , co m m e r c i a l , an d i n d u s t r i a l de v e l o p m e n t , r o a d w a y s a n d t r a n s p o r t a t i o n f a c i l i t i e s , ac t i v e t r a n s p o r t a t i o n r o u t e s , f i r e s t a t i o n s , p o l i c e s t a t i o n s , a n d ent e r t a i n m e n t a n d hos p i t a l i t y . 3. 4 In f r a s t r u c t u r e an d C r i t i c a l S e r v i c e s Wi t h i n Ca r l s b a d th e r e i s a l a r g e a r r a y o f i n f r a s t r u c t u r e a n d cr i t i ca l s e r v i c e s t h a t ar e v u l n e r a b l e t o c l i m a t e c h a n g e . As s e t s w i t h i n t h i s c a t e g o r y i n c l u d e wat e r ser v i c e s , was t e w a t e r , th e d e s a l i n a t i o n p l a n t , sto r m dra i n a g e a n d flo o d pro t e c t i o n , sol i d a n d haz a r d o u s was t e a n d rec y c l i n g , fir e ser v i c e s , eme r g e n c y ser v i c e s , med i c a l ser v i c e s , uti l i t i e s a n d maj o r uti l i t y cor r i d o r s , pub l i c tra n s p o r t a t i o n , roa d w a y s , co m m u n i c a t i o n in f r a s t r u c t u r e , an d act i v e tra n s p o r t a t i o n rou t e s (b i k e p a t h s a n d wa l k w a y s ) . Th i s a s s e t g r o u p i s s e n s i t i v e t o c l i m a t e c h a n g e a s t h e im p a c t s o f h az a r d s c a n a f f e c t t h e s e r v i c e l i n e a b i l i t y t o p r o v i d e May 12, 2026 Item #10 Page 235 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 30 re s o u r c e s a n d t h e i n f r a s t r u c t u r e i n p l a c e m a y n o t b e a d e q u a t e l y pr e p a r e d t o s u s t a i n i n c r e a s i n g a n d c o m p o u n d i n g h a z a r d s . May 12, 2026 Item #10 Page 236 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ad a p t i v e C a p a c i t y Pu b l i c S a f e t y E l e m e n t U p d a t e 31 4 Ad a p t i v e C a p a c i t y Ad a p t i v e c a p a c i t y i s t h e a b i l i t y t o a d j u s t t o t h e c o n s e q u e n c e s o f cl i m a t e c h a n g e . T h i s s e c t i o n s u m m a r i z e s t h e w a y s i n w h i c h as s e t ma n a g e r s , i n c l u d i n g t h e C i t y a n d o t h e r a g e n c i e s a n d u t i l i t i e s , cu r r e n t l y m a n a g e fo r t h e n e g a t i v e i m p a c t s o f c l i m a t e c h a n g e . T y pe s of a d a p t i v e c a p a c i t y i n c l u d e a d j u s t m e n t s i n b e h a v i o r , r e s o u r c e s , an d t e c h n o l o g i e s . Th e C i t y o f C a r l s b a d an d o t h e r a s s e t m a n a g e r s ha v e ac t i v e l y t a k e n s t e p s t o i n c r e a s e t h e a d a p t i v e c a p a c i t y of a s s e t s an d t h e c o m m u n i t y i n C a r l s b a d . Ex i s t i n g p o l i c i e s , p l a ns , p r o g r a m s , an d i n s t i t u t i o n s t h a t i n c r e a s e t h e c i t y ’ s r e s i l i e n c e t o c l i m a t e c h a n g e im p a c t s a r e o r g a n i z e d b y c l i m a t e h a z a r d a n d l i s t e d i n Ta b l e 4, Ta b l e 5, Ta b l e 6, a n d Ta b l e 7. 4. 1 Ex t r e m e H e a t a n d W a r m N i g h t s Ta b l e 4 li s t s p r o g r a m s , p l a n s , a n d p o l i c i e s t h a t h e l p c o m m u n i t i e s b e c o m e m o r e r e s i l i e n t t o a n i n c r e a s e i n e x t r e m e h e a t a n d w a r m ni g h t s . Ta b l e 4 Pr o g r a m , P l a n s , a n d P o l i c i e s t o M a n a g e I m p a c t s o f Ex t r e m e H e a t a n d W a r m N i g h t s Ex i s t i n g a n d P l a n n e d P r o g r a m s , P l a n s , a n d P o l i c i e s Ob j e c t i v e s Sa n D i e g o Co u n t y Ag i n g a n d I n d e p e n d e n c e S e r v i c e s (A I S ) C o o l Z o n e s a n d F a n P r o g r a m Th i s p r o g r a m i s a p a r t n e r s h i p b e t w e e n Sa n D i e g o Co u n t y Ag i n g a n d I n d e p e n d e n c e S e r v i c e s an d S D G & E t o m a i n t a i n de s i g n a t e d c o o l i n g c e n t e r s f o r c o u n t y r e s i d e n t s e s p e c i a l l y t h o s e m o r e s u s c e p t i b l e t o h e a t r e l a t e d i l l n e s s . T h e pr og r a m a l s o p r o v i d e s e l e c t r i c f a n s f r e e o f c h a r g e t o s e n i o r s a n d o t h e r v u l n e r a b l e g r o u p s w i t h o u t a c c e s s t o a i r co n d i t i o n i n g . Sa n D i e g o C o u n t y E x c e s s i v e H e a t R e s p o n s e P l a n (Co u n t y o f S a n D i e g o H e a l t h a n d H u m a n S e r v i c e s Age n c y 2 0 2 1 ) Th e S a n D i e g o Co u n t y H e a l t h a n d H u m a n S e r v i c e s A ge n c y ma i n t a i n s an i n t e r n a l an d e x t e r n a l E x c e s s i v e H e a t Re s p o n s e P l a n . T h e I n t e r n a l p l a n co o r d i n a t e s p u b l i c h e a l t h r e s o u r c e s in r e s p o n s e t o e x t r e m e h e a t e v e n t s . T h e ex t e r n a l p l a n ( “ C o n s u m e r V e r s i o n ” ) i s a p u b l i c f a c i n g d o c um e n t w h i c h pr o v i d e s re s i d e n t gu i d a n c e an d s t r a t e g i e s fo r mi t i g a t i n g h e a t r e l a t e d ha z a r d s . Ca r l s b a d C o o l Z o n e P r o g r a m Th e C i t y o f C a r l s b a d m a i n t a i n s c o o l i n g c e n t e r s f o r r e s i d e n t s d u r i n g p e r i o d s o f e x t r e m e h e a t . Th e s i t e s p r o v i d e f r e e ai r -co n d i t i o n i n g a n d co n s e r v e e n e r g y f o r t h e w h o l e c o m m u n i t y . Sa n D i e g o G a s & E l e c t r i c ( S D G & E ) M e d i c a l B a s e l i n e Al l o w a n c e P r o g r a m ( S D G & E 2 0 2 1 ) SD G & E p r o v i d e s a d d i t i o n a l e l e c t r i c i t y a t d i s c o u n t e d r a t e s t o c u s t o m e r s w i t h a q u a l i f y i n g m e d i c a l n e e d . T h i s p r o g r a m of t e n a l l o w s h e a t se n s i t i v e i n d i v i d u a l s t o c o n t i n u e o p e r a t i n g s p a c e c o o l i n g e q u i p m e n t m o r e c o n s i s t e n t l y . May 12, 2026 Item #10 Page 237 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 32 4. 2 Ri v e r i n e & St o r m w a t e r F l o o d i n g , D r o u g h t s , & Se a L e v e l R i s e Ta b l e 5 li s t s p r o g r a m s , p l a n s , a n d p o l i c i e s t h a t h e l p i n c r e a s e t h e c o m m u n i t y ’ s r e s i l i e n c e t o ri v e r i n e a n d s t o r m w a t e r fl o o d i n g , d r o u g h t s , a n d s e a l e v e l r i s e . Ta b l e 5 Pr o g r a m s , Pl a n s , a n d P o l i c i e s t o M a n a g e Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g , D r o u g h t s , a n d S e a L e v e l R i s e Im p a c t s Ex i s t i n g a n d P l a n n e d P r o g r a m s , P l a n s , a n d P o l i c i e s Ob j e c t i v e s Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t (CM W D ) Ur b a n Wa t e r M a n a g e m e n t P l a n (Ca r l s b a d M u n i c i p a l W a t e r Di s t r i c t 20 2 0 ) Th e Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t (CM W D ) Ur b a n W a t e r Ma n a g e m e n t P l a n in c l u d e s d e s c r i p t i o n s o f C M W D ’ s wa t e r s u p p l y so u r c e s , p r o j e c t e d w a t e r d e m a n d s , an d s u p p l y r e l i a b i l i t y du r i n g n o r m al w a t e r y e a r s , s i n g l e d r y y e a r s , an d f i v e c o n s e c u t i v e d r y y e a r s . T h e p l a n i n c l u d e s a d i s c u s s i o n o f t h e i m p a c t s o f c l i m a t e c h a n g e o n t h e s y s t e m i n a vu l n e r a b i l i t y a n a l y s i s a s w e l l a s s t r a t e g i e s f o r m i t i g a t i o n a n d a d a p t a t i o n . Cl a u d e “ B u d ” L e w i s C a r l s b a d D es a l i n a t i o n P l a n t Be g i n n i n g o p e r a t i o n i n 2 0 1 5 , t h e Cl a u d e “ B u d ” L e w i s C a r l s b a d D e s a l i n a t i o n P l a n t pr o v i d e s a “ d r o u g h t -pr o o f ” s o u r c e of d r i n k i n g w a t e r t o w a t e r u t i l i t i e s t h r o u g h o u t t h e S a n D i e g o r e g i o n . Ol i v e n h a i n M u n i c i p a l W a t e r D i s t r i c t ( O M W D ) U r b a n Wa t er M a n a g e m e n t P l a n ( O l i v e n h a i n M u n i c i p a l W a t e r Di s t r i c t 2 0 2 0 ) Th e Ol i v e n h a i n M u n i c i p a l W a t e r D i s t r i c t ( OMW D ) Ur b a n W a t e r Ma n a g e m e n t P l a n in c l u d e s d e s c r i p t i o n s o f OMW D ‘s wa t e r s u p p l y so u r c e s , p r o j e c t e d w a t e r d e m a n d s , an d s u p p l y r e l i a b i l i t y du r i n g n o r m a l w a t er y e a r s a n d p e r i o d s o f dr o u g h t . T h e p l a n i n c l u d e s a d i s c u s s i o n o f t h e i m p a c t s o f c l i m a t e c h a n g e o n t h e s y s t e m . Ol i v e n h a i n M u n i c i p a l W a t e r D i s t r i c t ( O M W D ) P o t a b l e Wa t e r a n d R e c y c l e d W a t e r M a s t e r P l a n ( O l i v e n h a i n Mu n i c i p a l W a t e r D i s t r i c t 2 0 1 5 ) Th e O M W D P o t ab l e W a t e r a n d R e c y c l e d W a t e r M a s t e r P l a n f o r e c a s t s p o t a b l e w a t e r d e m a n d t h r o u g h 2 0 5 0 a s w e l l as o u t l i n e s t h e p l a n n e d e x p a n s i o n o f t h e w a t e r d i s t r i c t s p o t a b l e a n d r e c y c l e d w a t e r s y s t e m s . T h e p l a n i n c o r p o r a t e d th e f i n d i n g s of S a n D i e g o C o u n t y W a t e r A u t h o r i t y’ s 2 0 1 3 c l i m a t e c h a n g e a n a l y s i s to i n f o r m w a t e r d e m a n d pr o j e c t i o n s . No r t h S a n D i e g o W a t e r R e u s e C o a l i t i o n ( N S D W R C ) Th e N S D W R C i s a c o l l a b o r a t i v e p r o g r a m b e t w e e n n o r t h e r n S a n D i e g o C o u n t y w a t e r a n d w a s t e w a t e r a g e n c i e s . T h e ag e n c i e s a r e t a k i n g i n v e n t o r y o f w h e r e t h e r e i s a s u p p l y o f w a s t e w a t e r a n d a d e m a n d f o r r e c y c l e d w a t e r . T h i s pr o g r a m w i l l p r o v i d e t h e r e g i o n w i t h a d r o u g h t -pr o o f s o u r c e o f w a t e r a n d r e d u c e d i s c h a r g e o f w a s t e w a t e r t o t h e oc e a n . Sa n D i e g o I n t e g r a t e d Re g i o n a l W a t e r M a n a g e m e n t Pl a n : I n t e g r a t e d F l o o d M a n a g e m e n t P l a n n i n g R e p o r t (C o u n t y o f S a n D i e g o 2 0 1 3 ) Th i s r e g i o n a l s t u d y s e r v e s a s a g u i d a n c e d o c u m e n t t o f a c i l i t a t e a n in t e g r a t e d w a t e r re s o u r c e s a p p r o a c h t o f l o o d ma n a g e m e n t . I t i n c l u d e s i n f o r m a t i o n t o p e rf o r m p l a n n i n g l e v e l r i s k a n a l y s i s a n d d e f i n e s g e n e r a l s t r a t e g i e s a n d ap p r o a c h e s t o g u i d e f l o o d m a n a g e m e n t d e c i s i o n m a k i n g . T h e r e p o r t h i g h l i g h t s t h e n e e d f o r f l o o d p l a i n m a n a g e m e n t sy s t e m s t o b e f l e x i b l e a n d r e s i l i e n t t o c h a n g i n g c o n d i t i o n s l i k e c l i m a t e c h an g e a n d p o p u l a t i o n g r o w t h ap p l i e d to w a r d s s t o r m w a t e r f l o o d i n g . Ci t y o f C a r l s b a d L o c a l C o a s t a l P r o g r a m L a n d U s e P l a n 20 1 9 ( C a r l s b a d 2 0 1 9 ) . Th e 2 0 1 9 L o c a l C o a s t a l P l a n fo r t h e C i t y o f C a r l s b a d , su p p o r t e d b y t h e 2 0 1 7 S e a L e v e l R i s e Vu l n e r a b i l i t y A s s e s s m e n t , pr o v i d e s s e v e r a l la n d u s e po l i c i e s t h a t s u p p o r t sea l e v e l r i s e a d a p t a t i o n e f f o r t s . P o l i c i e s o f L C P -7-P. 2 8 t h r o u g h L C P - 7-P. 3 6 b u i l d o n t h e s e a l e v e l r i s e v u l n e r a b i l i t y a s s e s s m e n t t o i n c o r p o r a t e f i n d i n g s a n d r e c o m m e n d a t i o n s i n t o t h e lo c a l c o a s t a l p l a n in c l u d i n g l a n d u s e a n d m i t i g a t i o n a c t i o n s . May 12, 2026 Item #10 Page 238 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ad a p t i v e C a p a c i t y Pu b l i c S a f e t y E l e m e n t U p d a t e 33 Ex i s t i n g a n d P l a n n e d P r o g r a m s , P l a n s , a n d P o l i c i e s Ob j e c t i v e s Ag u a H e d i o n d a W a t e r she d M a n a g e m e n t P l a n (C i t y o f Vi s t a 2 0 0 8 ) Th e 20 0 8 Ag u a H e d i o n d a W a t e r h e d M a n a g e m e n t P l a n d e s c r i b e s w a t e r q u a l i t y , h a b i t a t , e r o s i o n , a n d h a z a r d co n c e r n s w i t h i n t h e A g u a H e d io n d a W a t e r s h e d . T h e C i t y o f C a r l s b a d a s s i s t e d i n t h e d e v e l o p m e n t o f t h e P l a n . T h e Pl a n a c k n o w l e d g e s t h e l o n g -te r m c h a l l e n g e s t h a t c l i m a t e c h a n g e w i l l p o s e o n t h e w a t e r s h e d ’ s w i l d l i f e a n d o v e r a l l wa t e r s h e d f u n c t i o n . A v a r i e t y o f m a n a g e m e n t a c t i o n s a r e r e c o mm e n d e d i n c l u d i n g p r e s e r v a t i o n o f r i p a r i a n b u f f e r an d w e t l a n d s r e s t o r a t i o n a n d s t o r m w a t e r r e t r o f i t p r o j e c t s . C o n s i d e r a t i o n s o f p r e d i c t e d i m p a c t s f r o m c l i m a t e ch a n g e a r e n o t d e s c r i b e d i n r e l a t i o n t o t h e p r o p o s e d m a n a g e m e n t a c t i o n s . Ci t y o f C a r l s b a d L o c a l C oa s t a l P r o g r a m (D r a f t ) Th e C i t y o f C a r l s b a d Lo c a l C o a s t a l P l a n , a p p r o v e d b y t h e C i t y C o u n c i l o n O c t o b e r 1 2 , 2 0 2 1 , id e n t i f i e s c o a s t a l a r e a s th a t a r e m o s t s u s c e p t i b l e t o d a m a g e f r o m a c l i m a t e c h a n g e d r i v e n i n c r e a s e i n t h e s e a l e v e l . T h e a s s e s s m e n t pr o j e c t s p o t e n t i a l h a z a r d s t h r o u g h 2 0 5 0 a n d 2 1 0 0 . I t c o m p a r e s t h e r e l a t i v e r i s k s a n d v u l n e r a b i l i t i e s o f d i f f e r e n t ar e a s a n d r e s o u r c e s . T h e r e p o r t a l s o d e s c r i b e s p o s s i b l e a d a p t a t i o n s t r a t e g i e s t h e C i t y c a n i m p l e m e n t t o p r e v e n t fu t u r e c o a s t a l f l o o d i n g a n d e r os i o n . Th e L C P i s c o n s i d e r e d “ d r a f t ” a s i t i s su b j e c t t o t h e r e v i e w a n d a p p r o v a l o f t h e Ca l i f o r n i a C o a s t a l C o m m i s s i o n . T h e d o c u m e n t i s cu r r e n t l y un d e r r e v i e w b y t h e C o m m i s s i o n . SA N D A G Re g i o n a l B e a c h Sa n d P r o j e c t Th e P r o j e c t pla c e d 1 . 5 m i l l i o n c u b i c ya r d s o f b e a c h q u a l i t y s a n d o n r e g i o n a l b e a c h e s i n t h e f a l l o f 2 0 2 1 . A r o u n d 14 0 , 0 0 0 c u b i c y a r d s w e r e p l a c e d i n S o u t h C a r l s b a d a n d a b o u t 2 1 8 , 0 0 0 c u b i c y a r d s o f s a n d w e r e p l a c e d i n N o r t h Ca r l s b a d. Th e C a r l s b a d Op p o r t u n i s t i c S a n d P r o g r a m Th e C a r l s b a d O p p o r t un i s t i c S a n d P r o g r a m w a s l a u n c h e d i n 2 0 0 6 t o l e a d s t h e C i t y ’ s s a n d a c q u i s i t i o n e f f o r t . U n d e r th e p r o g r a m , C a r l s b a d c a n a c c e p t u p t o 1 5 0 , 0 0 0 c u b i c y a r d s a y e a r . May 12, 2026 Item #10 Page 239 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 34 4. 3 Wi l d f i r e s Ta b l e 6 li s t s p r o g r a m s , p l a n s , a n d p o l i c i e s t h a t h e l p i n c r e a s e t h e c o m m u n i t y ’ s r e s i l i e n c e t o w i l d f i r e s . Th e r e a r e n o p o l i c i e s o r p r o g r a m s in p l a c e t h a t s p e c i f i c a l l y a d d r e s s l a n d s l i d e s o r a i r q u a l i t y r e l a t e d h a z a r d s . Ta b l e 6 Pr o g r a m s , P l a n s , a n d P o l i c i e s t o M a n a g e W i l d f i r e I m p a c t s Ex i s t i n g a n d P l a n n e d P r o g r a m s , P l a n s , a n d P o l i c i e s Ob j ec t i v e s Ca r l s b a d H a z a r d R e d u c t i o n P r o g r a m Th e C a r l s b a d H a z a r d R e d u c t i o n P r o g r a m i s m a n a g e d b y t h e C a r l s b a d Fir e Dep a r t m e n t i n o r d e r t o c o m p l y w i t h A B 3 8 wh i c h r e q u i r e s r e a l e s t a t e s a l e s o f p r o p e r t y w i t h i n a H i g h o r V e r y H i g h F i r e S e v e r i t y Z o n e t o i n v o l v e an i n s p e c t i o n b y lo c a l f i r e a u t h o r i t i e s t o d e m o n s t r a t e c o m p l i a n c e w i t h s t a t e a n d l o c a l l a w s r e g a r d i n g d e f e n s i b l e s p a c e a n d v e g e t a t i o n ma n a g e m e n t . Ca r l s b a d F i r e D e p a r t m e n t ' s F i r e P r e v e n t i o n Bu r e a u (C a r l s b a d F i r e D e p a r t m e n t 2 0 2 2 ) Th e C a r l s b a d F i r e De p a r t m e n t ’ s F i r e P r e v e n t i o n B u r e a u w o r k s t o m i t i g a t e ri s k s w i t h i n t h e c o m m u n i t y b y p r o v i d i n g ed u c a t i o n a b o u t t h e b e n e f i t s o f p r o p e r s a f e t y p r a c t i c e s a n d re d u c t i o n o f a l l t y p e s o f h a z a r d o u s c o n d i t i o n s . T h e Bur e a u ’ s r e s p o n s i b i l i t i e s i n c l u d e f ir e c o d e e n f o r c em e n t , Haz a r d red u c t i o n i n s p e c t i o n s i n t h e W i l d l a n d U r b a n I n t e r f a c e , an d p u b l i c e d u c a t i o n . SD G & E W i l d f i r e M i t i g a t i o n P l a n ( S D G & E 2 0 2 1 ) Th e S D G & E W i l d f i r e M i t i g a t i o n P l a n d e t a i l s t h e v a r i o u s m i t i g a t i o n e f f o r t s t h e u t i l i t y i s m a k i n g t o r e d u c e t h e r i s k o f an d in c r e a s e r e s i l i e n c e t o w i l d f i r e . T h e s e e f f o r t s i n c l u d e r i s k a s s e s s m e n t a n d m a p p i n g , s i t u a t i o n a l a w a r e n e s s a n d fo r e c a s t i n g , p u b l i c s a f e t y p o w e r s h u t o f f s , g r i d h a r d e n i n g , v e g e t a t i o n m o n i t o r i n g a n d m a n a g e m e n t , g r i d o p e r a t i o n s a n d pr o t o c o l s , a n d e m e r g e n c y pr e p a r e d n e s s . Sa n D i e g o C o u n t y R e s i l i e n c e R e v i e w R e p o r t : Wi l d l a n d F i r e ( C o u n t y o f S a n D i e g o 2 0 1 9 ) Th e W i l d f i r e R e s i l i e n c e R e v i e w R e p o r t i s p a r t o f t h e l a r g e r S a n D i e g o C o u n t y R e s i l i e n c e P r o g r a m a n d i s i n t e n d e d t o id e n t i f y g a p s i n S a n D i e g o C o u n t y ’ s a p p r o a ch t o r e d u c i n g t h e c o m m u n i t y r i s k f r o m w i l d f i r e . T h e r e p o r t m a k e s re c o m m e n d a t i o n s t o s u p p o r t r i s k m i t i g a t i o n b e f o r e a w i l d f i r e , f u n c t i o n a l c a p a c i t y i n r e s p o n s e t o w i l d f i r e , a n d st r a t e g i e s t o r e c o v e r f r o m a w i l d f i r e . Ta s k G . 2 s t a t e s t o es t a b l i s h a M e m o r a n d u m o f A g r e e m e n t w i t h C a r l s b a d F i r e , S a n Ma r c o s F i r e , a n d E s c o n d i d o F i r e t o c r e a t e a J o i n t C o u n t y T e c h n i c a l R e s c u e T e a m ( C o u n t y o f S a n D i e g o 2 0 1 9 ) . Sa n D i e g o G a s & E l e c t r i c ( S D G & E ) P u b l i c S a f e t y Po w e r S h u t o f f ( P S P S ) N o t i f i c a t i o n s a n d S u p p o r t i v e Se r v i c e s ( S D G& E 2 0 2 1 ) SD G & E o p e r a t e s a n o t i f i c a t i o n s y s t e m t o a l e r t c u s t o m e r s o f P u b l i c S a f e t y P o w e r S h u t o f f d u r i n g p e r i o d s o f e l e v a t e d wi l d f i r e r i s k . D u r i n g a P S P S , S D G & E p r o v i d e s v a r i o u s s u p p o r t i v e s e r v i c e s t o c u s t o m e r s w i t h q u a l i f y i n g n e e d s i n c l u d i n g ho t e l s t a y s , a cc e s s i b l e t r a n s p o r t a t i o n , f o o d s u p p o r t , w e l f a r e c h e c k s , a n d b a c k u p p o w e r s y s t e m s . May 12, 2026 Item #10 Page 240 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ad a p t i v e C a p a c i t y Pu b l i c S a f e t y E l e m e n t U p d a t e 35 4. 4 Mu l t i p l e C l i m a t e H a z a r d s Ta b l e 7 li s t s p r o g r a m s , p l a n s , a n d p o l i c i e s t h a t h e l p i n c r e a s e t h e c o m m u n i t y ’ s r e s i l i e n c e t o m u l t i p l e c l i m a t e h a z a r d s . Ta b l e 7 Pr o g r a m s , P l a n s , a n d P o l i c i e s t o M a n a g e M u l t i p l e Cl i m a t e H a z a r d I m p a c t s Ex i s t i n g a n d P l a n n e d P r o g r a m s , P l a n s , a n d P o l i c i e s Ob j e c t i v e s Sa n D i e g o C o u n t y M u l t i -Ju r i s d i c t i o n a l H a z a r d Mi t i g a t i o n P l a n ( C o u n t y o f S a n D i e g o 2 0 1 8 ) Th e P l a n a s s e s s e s h a z a r d s w i t h i n t h e C o u n t y in c l u d i n g C a r l s b a d an d i d e n t i f i e s m i t i g a t i o n s t r a t e g i e s t h a t r e d u c e o r el i m i n a t e l o n g -te r m r i s k s t o p e o p l e a n d p r o p e r t y f r o m t h o s e h a z a r d s . C l i m a t e h a z a r d s p l a n n e d f o r i n c l u d e d r o u g h t , fl o o d , l a n d s l i d e s , e x t r e m e h e a t , w i n t e r s t o r m s , a n d w i l d f i r e . Th e P l a n o u t l i n e s g o a l s a n d ob j e c t i v e t o m i t i g a t e r i s k t o vu l n e r a b l e p o p u l a t i o n s a n d p h y s i c a l a s s e t s a c r o s s S a n D i e g o C o u n t y in c l u d i n g C a r l s b a d . Sa n D i e g o C o u n t y E m e r g e n c y O p e r a t i o n s P l a n (E O P ) ( C o u n t y o f S a n D i e g o 2 0 1 8 ) Th e C o u n t y E O P su m m a r i z e s a c o m p r e h e n s i v e e m e r g e n c y ma n a g e m e n t s y s t e m w h i c h e n a b l e s a p l a n n e d r e s p o n s e t o a wi d e v a r i e t y o f d i s a s t e r s i t u a t i o n s . T h e h i g h -le v e l g o a l s o f t h e E O P a r e 1 ) t o p r o v i d e a s y s t e m f o r t h e e f f e c t i v e ma n a g e m e n t o f e m e r g e n c y s i t u a t i o n s ; 2 ) t o i d e n t i f y l i n e s o f a u t h o r i t y a n d r e l a t i o n s h i p s; 3 ) t o a s s i g n t a s k s a n d re s p o n s i b i l i t i e s ; 4 ) t o e n s u r e a d e q u a t e m a i n t e n a n c e o f f a c i l i t i e s , s e r v i c e s , a n d r e s o u r c e s ; a n d 5 ) t o p r o v i d e a fr a m e w o r k f o r a d e q u a t e r e s o u r c e s f o r r e c o v e r y o p e r a t i o n s . W h i l e t h e p l a n d o e s n o t a d d r e s s c l i m a t e c h a n g e d i r e c t l y , i t es t a b l i s h e s a f r a m e w o r k o f r e s p o n s e t o m u l t i p l e h a z a r d s e x a c e r b a t e d b y c l i m a t e c h a n g e i n c l u d i n g f l o o d i n g , d r o u g h t , wi l d f i r e , a n d l a n d s l i d e s . Ca r l s b a d Y o u A r e N o t A l o n e ( Y A N A ) P r o g r a m Th e Y A N A p r o g r a m i s a f r e e s e r v i c e f o r C a r l s b a d s e n i o r s w h o l i v e a l o n e a nd w o u l d b e n e f i t f r o m a d a i l y c h e c k . Y A N A cl i e n t s a r e c a l l e d e a c h m o r n i n g T u e s d a y t h r o u g h S a t u r d a y . I f t h e c l i e n t d o e s n o t r e s p o n d , a w e l f a r e c h e c k i s c o n d u c t e d . Ci t y o f C a r l s b a d E m e r g e n c y O p e r a t i o n s P l a n ( C i t y o f Ca r l s b a d 2 0 2 1 ) Ca r l s b a d ’ s E m e r g e n c y Op e r at i o n s P l a n de t a i l s p r o t o c o l s t o pr e v e n t , p r o t e c t , m i t i g a t e , r e s p o n d , a n d re c o v e r f r o m t h e ef f e c t s o f d i s a s t e r s . Th e p l a n p r o v i d e s a s y s t e m f o r t h e e f f e c t i v e m a n a g e m e n t o f e m e r g e n c y s i t u a t i o n s a n d i d e n t i f i e s li n e s o f a u t h o r i t y a n d r e s p o n s i b i l i t y . Th e p l a n re v i e w s t h e h a z a r d s m o s t l i k e l y t o i m p a c t t h e Cit y , e s p e c i a l l y t h o s e ex a c e r b a t e d b y c l i m a t e c h a n g e i n c l u d i n g d r o u g h t , e x t r e m e h e a t , w i l d f i r e , f l o o d i n g , a n d s e v e r e w i n t e r s t o r m s . Re a d y C a r l s b a d B u s i n e s s A l l i a n c e ( R C B A ) Th e R C B A i s a p r o g r a m t h a t p r o m o t e s b us i n e s s e m e r g e n c y p r e p a r e d n e s s a n d s u p p o r t s t h e c o n t i n u i t y o f o p e r a t i o n s a n d co m m u n i t y r e c o v e r y . T h e p r o g r a m i s a c o l l a b o r a t i v e e f f o r t b e t w e e n t h e C a r l s b a d C h a m b e r o f C o m m e r c e , l o c a l bu s i n e s s e s , a n d t h e C i t y o f C a r l s b a d . Ca r l s b a d E m e r g e n c y R e s p o n s e T e a m (C E R T ) Pr o g r a m Th e C E R T p r o g r a m t r a i n s vo l u n t e e r s i n b a s i c f i r s t a i d , l i g h t s e a r c h a n d r e s c u e , an d s m a l l f i r e s u p p r e s s i o n , a n d a r e cl o s e l y a s s o c i a t e d w i t h C a r l s b a d ’ s F i r e D e p a r t m e n t . CE R T v o l u n t e e r s m a y a s s i s t n e i g h b o r s a n d o t h e r e m e r g e n c y pe r s o n n e l i n t i m e s o f e m e r g e n c y , a n d s u p p o r t e v a c u a t i o n s a l o n g w i t h o t h e r r e s p o n s i b i l i t i e s . Ca r l s b a d E m e r g e n c y O p e r a t i o n s C e n t e r ( E O C ) Th e E O C pr o v i d e s a c o m m o n l o c a t i o n t o co o r d i n a t e r e s o u r c e s u p p or t f o r f i r e , p o l i c e , p u b l i c w o r k s , a n d o t h e r r e s p o n s e ag e n c i e s as w e l l a s co o r d i n a t e g e n e r a l p u b l i c e m e r g e n c y n o t i f i c a t i o n s , e v a c u a t i o n s a n d s h e l t e r i n g in t h e e v e n t o f a la r g e -sc a l e e m e r g e n c y . May 12, 2026 Item #10 Page 241 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 36 Ex i s t i n g a n d P l a n n e d P r o g r a m s , P l a n s , a n d P o l i c i e s Ob j e c t i v e s Ha b i t a t M a n a g e m e n t P l a n f o r N a t u r a l C o m m u n i t i e s in t h e C i t y o f C a r l s b a d ( C i t y o f C a r l s b a d 2 0 0 4 ) Th e P l a n o u t l i n e s a c i t y w i d e e f f o r t t o i d e n t i f y o p p o r t u n i t i e s f o r t h e C i t y t o w o r k c o l l a b o r a t i v e l y w i t h f e d e r a l a n d s t a t e wi l d l i f e a g e n c i e s t o p r e s e r v e t h e d i v e r s i t y o f h a b i t a t a n d s e n s i t i v e b i o l o g i c a l r e s o u r c e s w i t h i n t h e C i t y . T h e P l a n di s c u s s e s i m p a c t s o f a n d m a n a g e m e n t s t r a t e g i e s f o r w i l d f i r e , f l o o d , l a n d s l i d e , a n d a i r q u a l i t y . H o w e v e r , i t d o e s n o t in c l u d e c o n t e n t a r o u n d c l i m a t e c h a n g e a n d t h e r e l a t i o n s h i p b e t w e e n c l i m a t e c h a n g e a n d h a b i t a t a n d w i l d l i f e w i t h i n th e C i t y . Al e r t S a n D i e g o E m e r g e n c y N o t i f i c a t i o n S y s t e m (C o u n t y o f S a n D i e g o 2 0 2 2 ) The C o u n t y o f S a n D i e g o us e s a r e g i o n a l n o t i f i c a t i o n s y s t e m t o s e n d t e l e p h o n e n o t i f i c a t i o n s t o r e s i d e n t s a n d bu s i n e s s e s w i t h i n th e Co u n t y i m p a c t e d b y a n e m e r g e n c y o r d i s a s t e r . Th e A ler t Sa n Di e g o sy s t e m is us e d b y e m e r g e n c y re s p o n s e p e r s o n n e l t o n o t i f y t h o s e h o m e s a n d b u s i n e s s e s a t r is k w i t h i n f o r m a t i o n o n t h e e v e n t in c l u d i n g , b u t n o t li m i t e d t o ev a c u a t i o n an d sh e l t e r i n p l a c e or d e r s . Th e s y s t e m s u s a g e r a t e s f o r C a r l s b a d a r e n o t p u b l i c l y a v a i l a b l e . Ca r l s b a d G e n e r a l Pl a n Pu b l i c Sa f e t y E l e m e n t Th e Ca r l s b a d Ge n e r a l P l a n Pu b l i c Sa f e t y E le m e n t p r o v i d e s p o l i c y d i r e c t i o n t h a t s u p p o r t s l a w s a n d r e g u l a t i o n o f f u t u r e de v e l o p m e n t t h a t w i l l m i n i m i z e t h e r i s k o f p e r s o n a l i n j u r y , l o s s o f l i f e , p r o p e r t y d a m a g e , a n d e n v i r o n m e n t a l d a m a g e as s o c i a t e d w i t h n a t u r a l a n d h u m a n -ca u s e d h a z a r d s . Th e Pu b l i c Sa f e t y E l e m e n t i n c l u d e s go a l s re l a t e d t o c l i m a t e ad a p t a t i o n a n d r e s i l i e n c e , an d p o l i c i e s t h a t w i l l s u p p o r t t h e c o m m u n i t y ’ s c a p a c i t y t o be t t e r w i t h s t a n d t h e i m p a c t s as s o c i a t e d w i t h c l i m a t e c h a n g e . Th e s e po l i c i e s in c l u d e p r o m o t i n g d e s i g n d e c i s i o n s t h a t i m p r o ve c o m m u n i t y r e s i l i e n c e an d p r o t e c t v u l n e r a b l e p o p u l a t i o n s , p r o t e c t i n g c r i t i c a l t r a n s p o r t a t i o n , e n e r g y a n d w a t e r i n f r a s t r u c t u r e , a n d e n s u r i n g em e r g e n c y s e r v i c e s h a v e a d e q u a t e c a p a c i t y t o a d d r e s s i n c r e a s e n e e d s d u e t o c l i m a t e c h a n g e -re l a t e d i m p a c t s . May 12, 2026 Item #10 Page 242 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Vu l n e r a b i l i t y A n a l y s i s Pu b l i c S a f e t y E l e m e n t U p d a t e 37 5 Vu l n e r a b i l i t y A n a l y s i s Th i s se c t i o n de s c r i b e s th e i m p a c t s e a c h c l i m a t e h a z a r d h a s o n co m m u n i t y a s s e t s a n d s e r v i c e s d e s c r i b e d i n t h e Se n s i t i v i t y sec t i o n . Ex i s t i n g p l a n s , p o l i c i e s , a n d p r o g r a m s t h a t c o n t r i b u t e t o t h e ad a p t i v e c a p a c i t y ar e su m m a r i z e d th r o u g h o u t . A n i m p a c t s c o r e a n d an a d a p t i v e c a p a c i t y s c o r e i s i d e n t i f i e d f o r e a c h a s s e t by cl i m a t e ha z a r d , a l o n g w i t h a n ov e r a l l v u l n e r a b i l i t y s c o r e co n s is t e n t w i t h t h e sc o r i n g m e t h o d o l o g y d e s c r i b e d i n Vu l n e r a b i l i t y A s s e s s m e n t Me t h o d o l o g y . Th e r e a r e 7 g r o u p s o f a s s e t s e v a l u a t e d i n t h e S e a L e v e l R i s e Vu l n e r a b i l i t y A s s e ss m e n t w h i c h a r e a l s o a d d r e s s e d i n t h i s r e p o r t . Th e i n f o r m a t i o n Tab l e 8 wi t h i n s e c t i o n 5 . 2 pr e s e n t s th e a s s e t s pr o j e c t e d t o b e i m p a c t e d , a l o n g w i t h t h e t i m e h o r i z o n a n d vu l n e r a b i l i t y r a t i n g s i n t h e C a r l s b a d S e a L e v e l R i s e V u l n e r a b i l i t y As s e s s m e n t w h i c h i s u s e d w h er e r e l e v a n t i n t h i s s ec t i o n . 5. 1 Vu l n e r a b l e P o p u l a t i o n s In d i v i d u a l s w i t h H i g h O u t d o o r E x p o s u r e in c l u d i n g out d o o r w o r k e r s a n d p e o p l e e x p e r i e n c i n g h o m e l e s s n e s s , fa c e di s p r o p o r t i o n a t e d i r e c t e x p o s u r e t o c l i m a t e h a z a r d s , ca u s i n g t h e m t o b e e x t r e m e l y v u l n e r a b l e to th e e f f e c t s o f c l i m a t e ch a n g e . Un d e r -re s o u r c e d i n d i v i d u a l s of t e n d o n o t h a v e a c c e s s o r t h e a b i l i t y to a f f o r d r e s o u r c e s n e e d e d t o p r e p a r e f o r , c o p e w i t h , a n d r e c o v e r fr o m c l i m a t e c h a n g e i m p a c t s . I n d i v i d u a l s w h o a r e u n e m p l o y e d o r ar e l o w -in c o m e o f t e n f a c e f i n a n c i a l b a r r i e r s w h e n p r e p a r i n g f o r a n d re c o v e r i n g f r o m c l i m a t e c h a n g e h a z a r d s . I n d i v i d u a l s i n t h e s e g r o u p s of t e n l i v e i n h o m e s t h a t a r e l e s s p r o t e c t e d a g a i n s t c l i m a t e h a z a r d s . Lo w -in c o m e i n d i v i d u a l s m a y n o t b e a b l e t o t a k e t i m e o f f w o r k t o ad d r e s s h e a lt h c o n c e r n s e i t h e r c a u s e d b y o r e x a c e r b a t e d b y c l i m a t e ha z a r d s . Ind i v i d u a l s w i t h e d u c a t i o n a l a t t a i n m e n t o f l e s s t h a n 4 y e a r s of c o l l e g e u s u a l l y h a v e l o w e r e a r n i n g p o t e n t i a l t h a n t h o s e w i t h a 4 - ye a r c o l l e g e d e g r e e . As d e f i n e d b y t h e U . S . C e n s u s B u r e a u , t h i s po p u l a t i o n g r o u p do e s n o t i n c l u d e i n d i v i d u a l s w h o h a v e a t t e n d e d tr a d e s c h o o l s , a p p r e n t i c e p r o g r a m , o r w h o h a v e a t t a i n e d a s s o c i a t e s de g r e e s . In d i v i d u a l s w i t h 4-ye a r d e g r e e s ar e h a l f a s l i k e l y t o b e un e m p l o y e d t h a n t h o s e w h o o n l y h a v e a h i g h s c h o o l d e g r e e (A s s o c i a t i o n o f P u b l i c a n d L a n d -Gr a n t U n i v e r s i t i e s N . d ) . In d i v i d u a l s in t h i s g r o u p a r e l e s s l i k e l y t o h a v e a c c e s s t o t r a n s p o r t a t i o n , he a l t h c a r e , a n d o t h e r b a s i c n e e d s . U n d e r -re s o u r c e d i n d i v i d u a l s of t e n l a c k t h e f i n a n c i a l r e s o u r c e s t o e v a c u a t e f r o m a c l i m a t e h a z a r d an d / o r f i n d a n a f f o r d a b l e p l a c e t o e v a c u a t e t o . In d i v i d u a l s F a c i n g S o c i e t a l B a r r i e r s al s o f a c e a d d i t i o n a l i m p a c t s o f cl i m a t e c h a n g e . N on -wh i t e i n d i v i d u a l s a r e m o r e li k e l y t o l i v e i n h i g h ha z a r d r i s k a r e a s a n d l e s s l i k e l y t o b e h o m e o w n e r s , w h i c h l e a v e s th e m v u l n e r a b l e t o c l i m a t e h a z a r d s . If e v a c u a t i o n a n d / o r a d v i s o r y no t i c e s , h a z a r d p r e p a r e d n e s s m a t e r i a l , o r g o v e r n m e n t a l g u i d a n c e i s no t p r o v i d e d i n n o n -En g l i s h v e r s i o ns , l i n g u i s t i c a l l y i s o l a t e d in d i v i d u a l s m a y n o t b e a b l e t o p r e p a r e f o r , c o p e w i t h , o r r e c o v e r fr o m a c l i m a t e h a z a r d ( G a m b l e e t a l . 2 0 1 6 ) . In d i v i d u a l s w i t h c h r o n i c h e a l t h c o n d i t i o n s o r h e a l t h r e l a t e d se n s i t i v i t i e s ar e s o c i a l l y a n d p h y s i o l o g i c a l l y v u l n e r a b l e t o c l i m a t e ch a n g e i m p a c t s a n d h a z a r d s . O l d e r a d u l t s a n d i n d i v i d u a l s w i t h di s a b i l i t i e s m a y h a v e l i m i t e d o r r e d u c e d m o b i l i t y , m e n t a l f u n c t i o n , or c o m m u n i c a t i o n a b i l i t i e s , m a k i n g i t d i f f i c u l t t o e v a c u a t e d u r i n g o r pr e p a r e f o r a c l i m a t e h a z a r d e v e n t (C D P H 2 0 20 ) . T h e y m a y a l s o May 12, 2026 Item #10 Page 243 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 38 ha v e m e d i c a l n e e d s f o r e l e c t r i c i t y w h i c h m a y b e i m p a c t e d d u r i n g a pu b l i c s a f e t y p o w e r s h u t o f f o r c l i m a t e h a z a r d e v e n t . Th e r e a r e se v e r a l s e n i o r f a c i l i t i e s i n C a r l s b a d in La C o s t a G l e n a n d o t h e r sm a l l e r f a c i l i t i e s a s w e l l su c h a s Ca r l s b a d by t h e S e a . In d i v i d u a l s i n th e s e g r o u p s a r e m o r e l i k e l y t o h a v e p r e -ex i s t i n g m e d i c a l c o n d i t i o n s or c h r o n i c i l l n e s s e s t h a t m a y e x a c e r b a t e t h e r i s k o f i l l n e s s e s a n d me d i c a l p r o b l e m s f r o m c l i m a t e h a z a r d s . S i m i l a r l y , i n d i v i d u a l s w i t h as t h m a a n d i n d i v i d u a l s w i th c a r d i o v a s c u l a r d i s e a s e a r e m o r e l i k e l y to e x p e r i e n c e h e a l t h i m p a c t s f r o m c l i m a t e h a z a r d s b e c a u s e o f t h e i r pr e -ex i s t i n g c o n d i t i o n s o r d i s e a s e s (PH A S o C a l 2 0 2 2 ) . C h i l d r e n a r e so c i a l l y a n d p h y s i o l o g i c a l l y v u l n e r a b l e t o c l i m a t e h a z a r d s wi t h li m i t e d u n d e r s t a n di n g s o f c l i m a t e h a z a r d s a n d i n s u f f i c i e n t r e s o u r c e s to i n d e p e n d e n t l y p r e p a r e f o r a n d s a f e l y r e s p o n d d u r i n g a c l i m a t e ha z a r d e v e n t . C h i l d r e n , e s p e c i a l l y y o u n g o n e s , a r e r e l i a n t o n t h e i r pa r e n t a l f i g u r e s t o e n s u r e t h e i r h e a l t h , s a f e t y , a n d w e l l b e i n g (C D P H 20 20 ) . C h i l d r e n a l s o h a v e v u l n e r a b l e p h y s i c a l c h a r a c t e r i s t i c s be c a u s e t h e y h a v e n o t f u l l y p h y s i o l o g i c a l l y d e v e l o p e d a n d a r e th e r e f o r e m o r e v u l n e r a b l e t o h e a l t h e f f e c t s o f c l i m a t e c h a n g e im p a c t s ( K e n n y e t a l . 2 0 1 4 ) . M i l i t a r y v e t e r a n s a r e m o r e l i k e l y t o ha v e c hr o n i c h e a l t h c o m p l i c a t i o n s a s w e l l a s e x p e r i e n c i n g lo w - in c o m e or ho m e l e s s n e s s a f t e r t h e i r s e r v i c e , wh i c h a l s o m a k e s t h e m vu l n e r a b l e t o p r e p a r i n g a n d r e s p o n d i n g t o c l i m a t e h a z a r d s ( O l e n i c k et a t . 2 0 1 5 ) . Po t e n t i a l I m p a c t s Ex t r e m e H e a t Ou t d o o r w o r k e r s a n d p e o p l e e x p e r i e n c i n g h o m e l e s s n e s s ar e a t r i s k t o h e a l t h i m p a c t s f r o m e x t r e m e h e a t . O u t d o o r wo r k e r s , i n c l u d i n g c o n s t r u c t i o n w o r k e r s , r o o f e r s , a n d l a n d s c a p e r s , ar e o f t e n s u b j e c t t o s t r e n u o u s w o r k c o n d i t i o n s a n d a r e v u l n e r a b l e du r i n g e x t r e m e h e a t e v e n t s . P e o p l e e x p e r i e n c i n g h o m e l e s s n e s s a r e ex p o s e d t o h e a l t h -re l a t e d i m p a c t s a s s o c i a t e d e x t r e m e h e a t b e c a u s e th e y h a v e l i m i t e d a c c e s s t o s h e l t e r a n d a i r c o n d i t i o n i n g . T h e p r i m a r y he a l t h i m p a c t s t o t h e s e p o p u l a t i o n s a r e h e a t -re l a t e d i l l n e s s e s , s u c h as h e a t s t r e s s , h e a t s t r o k e , a n d d e h y d r a t i o n , w h i c h c a n b e l i f e - th r e a t e n i n g ( CD P H 20 2 0 ) . Un d e r -re s o u r c e d i n d i v i d u a l s m a y n o t b e a b l e t o p a y f o r a d e q u a t e ai r c o n d i t i o n i n g o r f a n s , i n c r e a s i n g t h e i r e x p o s u r e t o e x t r e m e h e a t . Is o l a t e d i n d i v i d u a l s d o n ’ t h a v e a cc e s s t o a v e h i c l e t o t r a v e l t o co o l i n g c e n t e r s o r m o v e t o t e m p o r a r y s h e l t e r s d u r i n g e x t r e m e h e a t ev e n t (C o o l e y e t a l . 2 0 1 2 ) . U n d e r -re s o u r c e d i n d i v i d u a l s a r e l e s s li k e l y t o r e c e i v e m e d i c a l c a r e f o r i l l n e s s e s t r i g g e r e d o r e x a c e r b a t e d by e x t r e m e h e a t . H o u s e h ol d s w i t h o u t a c o m p u t e r o r b r o a d b a n d in t e r n e t m a y n o t r e c e i v e h e a t a d v i s o r y w a r n i n g s o r g o v e r n m e n t a l gu i d a n c e , c a u s i n g t h e m t o e x p e r i e n c e h e a l t h i m p a c t s f r o m e x t r e m e he a t e x p o s u r e ( CD P H 20 17 ). No n -wh i t e c o m m u n i t i e s o f t e n l i v e i n h o u s i n g w i t h i n s u f f i c i e n t pr o t e c t i o n f r o m e x t r e m e h e a t e v e n t s a n d l i m i t e d o r n o a f f o r d a b l e ai r c o n d i t i o n i n g . L i n g u i s t i c a l l y i s o l a t e d i n d i v i d u a l s m a y n o t t o b e ab l e t o r e a d h e a t a d v i s o r y w a r n i n g s o r g o v e r n m e n t a l g u i d a n c e , po t e n t i a l l y c a u s i n g t h e m t o e x p e r i e n c e g r e a t e r e x p o s u r e t o e x tr e m e he a t ( G a m b l e e t a l . 2 0 1 6 ) . T h e p r i m a r y h e a l t h i m p a c t s t o t h e s e po p u l a t i o n s a r e h e a t -re l a t e d i l l n e s s e s , s u c h a s h e a t s t r e s s , h e a t st r o k e , a n d d e h y d r a t i o n , w h i c h c a n b e l i f e -th r e a t e n i n g ( CD P H 20 2 0 ) . Th e s e p o p u l a t i o n s ma y n o t h a v e a c c e s s t o m e d i c a l s e r v ic e s t o t r e a t he a t -re l a t e d i l l n e s s e s . In d i v i d u a l s w i t h c h r o n i c h e a l t h c o n d i t i o n s o r h e a l t h r e l a t e d se n s i t i v i t i e s a r e p a r t i c u l a r l y a t r i s k t o h e a t r e l a t e d i l l n e s s e s d u r i n g ex t r e m e h e a t e v e n t s . I n d i v i d u a l s w i t h d i s a b i l i t i e s , o l d e r a d u l t s , a n d ch i l d r e n m a y h a ve d i f f i c u l t y t u r n i n g o n a i r c o n d i t i o n i n g o r t r a v e l i n g to c o o l i n g c e n t e r s d u r i n g e x t r e m e h e a t e v e n t s . E x t r e m e h e a t co n d i t i o n s c a n e x a c e r b a t e a s t h m a , c a r d i o v a s c u l a r d i s e a s e , c e r t a i n di s a b i l i t i e s , a n d o t h e r r e s p i r a t o r y a n d c a r d i o v a s c u l a r c o n d i t i o n s , po t e n t i a ll y c a u s i n g h e a t -re l a t e d i l l n e s s e s s u c h a s h e a t s t r e s s , h e a t May 12, 2026 Item #10 Page 244 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Vu l n e r a b i l i t y A n a l y s i s Pu b l i c S a f e t y E l e m e n t U p d a t e 39 st r o k e a n d d e h y d r a t i o n s , w h i c h c a n b e -li f e t h r e a t e n i n g ( CD P H 20 2 0 ) . C h i l d r e n a r e s t i l l p h y s i o l o g i c a l l y d e v e l o p i n g w h i c h m e a n s t h a t th e y a r e l e s s a b l e t o r e g u l a t e t h e i r b o d i e s d u r i n g e x t r e m e h e a t ev e n t s (K e n n y e t a l . 2 0 1 4 ) . Dr o u g h t Ou t d o o r w o r k e r s a n d p e o p l e e x p e r i e n c i n g h o m e l e s s n e s s ar e a t r i s k t o d r o u g h t c o n d i t i o n s a n d a s s o c i a t e d c a s c a d i n g im p a c t s . D u r i n g p r o l o n g e d d r o u g h t c o n d i t i o n s , p e o p l e e x p e r i e n c i n g ho m e l e s s n e s s m a y h a v e d i f f i c u l t y a c c e s s i n g c l e a n a n d a f f o r d a b l e dr i n k i n g w a t e r (G a m b l e e t a l . 2 0 1 6 ) . Du r i n g p e r i o d s o f p r o l o n g e d d r o u g h t , u n d e r -re s o u r c e d i n d i v i d u a l s ar e m o r e l i k e l y t o e x p e r i e n c e t h e c o s t b u r d e n a s s o c i a t e d w i t h in c r e a s e d w a t e r r a t e s ( F e i n s t e i n e t a l . 2 0 1 7 ) . T h e s e i n d i v i d u a l s m a y st r u g g l e t o a c c e s s c l e a n a n d a f f o r d a b l e d r i n k i n g w a t e r w h i c h m a y ca u s e d e h y d r a t i o n a n d / o r e x a c e r b a t e u n d e r l y i n g h e a l t h c o n d i t i o n s an d i l l n e s s e s ( G a m b l e e t a l . 2 0 1 6 ) . No n -wh i t e c o m m u n i t i e s a r e a t r i s k t o d r o u g h t c o n d i t i o n s a n d as s o c i a t e d c a s c a d i n g i m p a c t s . In d i v i d u a l s i n t h e s e g r o u p s m a y f a c e sy s t e m i c a n d / o r c u l t u r a l b a r r i e r s w h e n s e e k i n g t o a c c e s s a f f o r d a b l e an d c l e a n d r i n k i n g w a t e r , w h i c h m a y c a u s e d e h y d r a t i o n a n d / o r ex a c e r b a t e u n d e r l y i n g h e a l t h c o n d i t i o n s a n d i l l n e s s e s ( G a m b l e e t a l . 20 1 6 ) . In d i v i d u a l s w it h c h r o n i c h e a l t h c o n d i t i o n s o r h e a l t h r e l a t e d se n s i t i v i t i e s a r e a t r i s k t o d r o u g h t c o n d i t i o n s a n d a s s o c i a t e d ca s c a d i n g i m p a c t s . P r o l o n g e d d r o u g h t c o n d i t i o n s c a n l e a d t o w a t e r sc a r c i t y a n d i n d i v i d u a l s m a y n e e d t o r e l y o n p o o r q u a l i t y w a t e r su p p l i e s . I n d i v id u a l s w i t h c h r o n i c h e a l t h c o n d i t i o n s o r h e a l t h r e l a t e d se n s i t i v e s m a y e x p e r i e n c e n e g a t i v e h e a l t h i m p a c t s i f t h e y b e c o m e de h y d r a t e d . C h i l d r e n a n d o l d e r a d u l t s a r e e s p e c i a l l y a t r i s k t o de h y d r a t i o n a s t h e i r b o d i e s a r e n o t a b l e t o r e g u l a t e a s w e l l ( K e n n y et al . 2 0 1 4 ) . D e h y d r a t i o n m a y e x a c e r b a t e u n d e r l y i n g h e a l t h co n d i t i o n s a n d i l l n e s s e s . ( C a l i f o r n i a D e p a r t m e n t o f P u b l i c H e a l t h 20 1 7 ) . Wi l d f i r e Ou t d o o r w o r k e r s m a y b e e x p o s e d t o h a z a r d o u s w o r k co n d i t i o n s d u r i n g w i l d f i r e e v e n t s a n d m a y b e c o m e i n j u r e d fr o m s m o k e in h a l a t i o n o r b u r n s . Pe o p l e e x p e r i e n c i n g h o m e l e s s n e s s ar e p a r t i c u l a r l y a t -ri s k d u r i n g w i l d f i r e e v e n t s a s t h e y o f t e n s u f f e r fr o m r e s p i r a t o r y c o n d i t i o n s , m e n t a l i l l n e s s , a n d c h r o n i c h e a l t h co n d i t i o n s t h a t m a y b e e x a c e r b a t e d f r o m p h y s i c a l c o n t a c t w i t h wi l d f i r e o r s m o k e i n h a l a t i o n . P e o p l e e x p e r i e n c i n g h o m e l e s s h a v e li m i t e d a c c e s s t o s h e l t e r a n d d o n o t h a v e a c c e s s t o t r a n s p o r t a t i o n t o ev a c u a t e f r o m b u r n i n g a r e a s . T h e y m a y a l s o h a v e t h e i r p e r s o n a l be l o n g i n g s d e s t r o y e d o r d a m a g e d d u r i n g a w i l d f i r e e v e n t ( CD P H 20 1 7 ). Un d e r -re s o u r c e d i n d i v i d u a l s m a y e x p e r i e n c e i n j u r i e s o r d e a t h f r o m sm o k e i n h a l a t i o n o r b u r n s a n d a r e l e s s l i k e l y t o r e c e i v e m e d i c a l tr e a t m e n t ( CD P H 20 1 7 ) . T h e s e i n d i v i d u a l s m a y h a v e t h e i r be l o n g i n g s a n d h o m e s d a m a g e d b y a w i l d f i r e . I f t h i s o c c u r s , u n d e r - re s o u r c e d i n d i v i d u a l s a r e l i k e l y t o s u f f e r f r o m t h e c o s t b u r d e n as s o c i a t e d w i t h l o s s e s o r d a m a g e . H o u s e h o l d s w i t h o u t a c o m p u t e r or i n t e r n e t m a y n o t r e c e i v e c o m m u n i c a t i o n s a n d e v a c u a t i o n s t o sa f e l y e v a c u a t e f r o m h a z a r d a r e a s . I s o l a t e d i n d i v i d u a l s a r e vu l n e r ab l e d u r i n g w i l d f i r e s b e c a u s e t h e y n o d o h a v e a c c e s s t o a ve h i c l e t o e v a c u a t e . R e n t e r s h a v e l i m i t e d c o n t r o l o v e r h o m e ha r d e n i n g a n d i m p r o v e m e n t s t h a t m a y p r o t e c t a g a i n s t f i r e a n d sm o k e . S u b s e q u e n t l y , t h e y m a y e x p e r i e n c e e c o n o m i c a n d h e a l t h im p a c t s a n d a g r ea t e r l o s s o f b e l o n g i n g s t h a n h o m e o w n e r s ( G a m b l e et a l . 2 0 1 6 ) . No n -wh i t e c o m m u n i t i e s a r e m o r e l i k e l y t o l i v e i n w i l d f i r e h a z a r d zo n e s a n d i n h o u s i n g w i t h i n s u f f i c i e n t p r o t e c t i o n a g a i n s t w i l d f i r e . May 12, 2026 Item #10 Page 245 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 40 Li n g u i s t i c a l l y i s o l a t e d i n d i v i d u a l s m a y n o t b e a b l e t o r e a d w i l d f i r e o r sm o k e a d v i s o r y w a r n i n g s o r g o v e r n m e n t a l g u i d a n c e , p o t e nt i a l l y ca u s i n g t h e m t o e x p e r i e n c e g r e a t e r e x p o s u r e t o s m o k e a n d / o r wi l d f i r e . I n d i v i d u a l s i n t h e s e g r o u p s h a v e m a y f a c e s y s t e m a t i c an d / o r c u l t u r a l b a r r i e r s t o a c c e s s re s o u r c e s t o s a f e l y e v a c u a t e ha z a r d a r e a s ( G a m b l e e t a l . 2 0 1 6 ) . I n d i v i d u a l s i n t h e s e g r o u p s m a y ex p e r i e n c e i n j u r i e s o r d e a t h f r o m s m o k e i n h a l a t i o n o r b u r n s ( CD P H 20 1 7 ) . In d i v i d u a l s w i t h c h r o n i c h e a l t h c o n d i t i o n s o r h e a l t h r e l a t e d se n s i t i v i t i e s m a y e x p e r i e n c e i n j u r i e s o r d e a t h f r o m s m o k e i n h a l a t i o n or b u r n s ( CD P H 20 1 7 ) . O l d e r a d u l t s , m i l i t a r y v e t e r a n s , a n d p o l l u t i o n bu r d e n e d i n d i v i d u a l s a r e v u l n e r a b l e t o h e a l t h i m p a c t s f r o m w i l d f i r e sm o k e p o l l u t a n t s b e c a u s e t h e y a r e m o r e l i k e l y t o h a v e u n d e r l y i n g re s p i r a t o r y a n d / o r c a r d i o v a s c u l a r c o n d i t i o n s a n d i l l n e s s e s . C h i l d r e n ma y e x p e r i e n c e r e s p i r a t o r y h e a l t h i m p a c t s f r o m w i l d f i r e s m o k e be c a u s e t h e i r r e s p i r a t o r y s y s t e m s a r e n o t f u l l y d e v e l o p e d a n d a r e se n s i t i v e t o s t r e s s o r s . I n d i v i d u a l s w i t h c a r d i o v a s c u l a r d i s e a s e m a y ex p e r i e n c e s e v e r e c a r d i o v a s c u l a r h e a l t h i m p a c t s i f e x p o s e d to wi l d f i r e s m o k e p o l l u t a n t s . I n d i v i d u a l s w i t h a s t h m a m a y e x p e r i e n c e se v e r e r e s p i r a t o r y h e a l t h i m p a c t s s u c h a s d i f f i c u l t y b r e a t h i n g i f ex p o s e d t o w i l d f i r e s m o k e p o l l u t a n t s . I n d i v i d u a l s w i t h d i s a b i l i t i e s , ch i l d r e n , a n d o l d e r a d u l t s m a y h a v e d i f f i c u l t y e v a c u at i n g f r o m wi l d f i r e s , i n c r e a s i n g t h e r i s k o f h e a l t h i m p a c t s f r o m w i l d f i r e s m o k e in h a l a t i o n o r f i r e b u r n s ( E P A 2 0 2 2 ) . La n d s l i d e s Th e r e i s l i m i t e d e x p o s u r e f o r v u l n e r a b l e p o p u l a t i o n s t o th e i m p a c t s o f l a n d s l i d e s . A s l i s t e d w i t h i n t h e S a n D i e g o Co u n t y M u l t i -Ju r i s d i c t i o n a l H a z a r d M i t i g a t i o n P l a n , t h e r e a r e 2 0 6 ex p o s e d b u i l d i n g s c r e a t i n g v u l n e r a b i l i t i e s f o r o n l y t h e o c c u p a n t s o f th e s e a r e a s . Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Ou t d o o r w o r k e r s m a y b e e x p o s e d t o h a z a r d o u s w o r k co n d i t i o n s d u r i n g r i v e r i n e a n d / o r s t o rm w a t e r f l o o d i n g ev e n t s a n d t h e r e f o r e a r e v u l n e r a b l e t o h e a l t h i m p a c t s ( CD P H 20 2 0 ) . Pe o p l e e x p e r i e n c i n g h o m e l e s s n e s s a r e d i s p r o p o r t i o n a t e l y a t r i s k t o he a l t h i m p a c t s d u r i n g f l o o d e v e n t s b e c a u s e t h e y o f t e n l i v e i n f l o o d ha z a r d a r e a s a n d d o n o t h a v e a c c e s s t o t r a n s p o r t a t i o n t o e v a c u a t e in u n d a t e d a r e a s . T h e y m a y a l s o h a v e t h e i r p e r s o n a l b e l o n g i n g s de s t r o y e d o r d a m a g e d d u r i n g a f l o o d e v e n t . ( R a m i n & S v o b o d a 20 0 9 ) . Un d e r -re s o u r c e d i n d i v i d u a l s m a y e x p e r i e n c e i n j u r i e s o r d e a t h f r o m hi g h v e l o c i t y f l o o d i n g a n d a r e le s s l i k e l y t o r e c e i v e m e d i c a l tr e a t m e n t ( CD P H 2 0 1 7 ) . I n d i v i d u a l s i n t h e s e g r o u p s m a y e x p e r i e n c e co s t b u r d e n s i f t h e i r b e l o n g i n g s a n d h o m e s a r e d a m a g e d f r o m fl o o d w a t e r i n u n d a t i o n . I s o l a t e d i n d i v i d u a l s h a v e l i m i t e d o r n o ac c e s s t o a v e h i c l e t o e v a c u a t e f l o o d h a z a r d a r e a s . H o u s e h o l d s wi t h o u t a c o m p u t e r o r i n t e r n e t m a y n o t r e c e i v e c o m m u n i c a t i o n s an d e m e r g e n c y a l e r t s t o s a f e l y e v a c u a t e f r o m h a z a r d a r e a s ( CD P H 20 2 0 ) . Re n t e r s ha v e l i m i t e d c o n t r o l o v e r h o m e i m p r o v e m e n t s t h a t ma y p r o t e c t a g a i n s t f l o o d d a m a g e . S u b s e qu e n t l y , t h e y m a y ex p e r i e n c e e c o n o m i c a n d h e a l t h i m p a c t s a n d a g r e a t e r l o s s o f be l o n g i n g s t h a n h o m e o w n e r s ( G a m b l e e t . a l 2 0 1 6 ) . No n -wh i t e c o m m u n i t i e s a r e m o r e l i k e l y t o l i v e i n f l o o d h a z a r d a r e a s an d i n h o u s i n g w i t h i n s u f f i c i e n t pr o t e c t i o n a g a i n s t r i v e r i n e a n d st o r m w a t e r f l o o d i n g . L i n g u i s t i c a l l y i s o l a t e d i n d i v i d u a l s m a y n o t b e ab l e t o r e a d f l o o d w a r n i n g o r g o v e r n m e n t a l g u i d a n c e , p o t e n t i a l l y ca u s i n g t h e m t o e x p e r i e n c e g r e a t e r e x p o s u r e t o f l o o d i n g . In d i v i d u a l s i n t h e s e g r o u p s m a y f a c e s y s t e m a t i c a n d / o r c u l t u ra l ba r r i e r s wh e n se e k i n g t o a c c e s s re s o u r c e s ne e d e d t o sa f e l y ev a c u a t e h a z a r d a r e a s ( G a m b l e e t a l . 2 0 1 6 ) . May 12, 2026 Item #10 Page 246 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Vu l n e r a b i l i t y A n a l y s i s Pu b l i c S a f e t y E l e m e n t U p d a t e 41 Ol d e r p e o p l e a n d c h i l d r e n a r e p a r t i c u l a r l y a t r i s k t o i n j u r y a n d / o r de a t h f r o m h i g h v e l o c i t y f l o o d i n g ( CD P H 20 1 7 ) . R i v e r i n e a n d st o r m w a t e r f l o o d i n g m ay a l s o l i m i t a c c e s s t o t r a n s p o r t a t i o n sy s t e m s , h e a l t h c a r e c e n t e r s , a n d e m e r g e n c y r e s p o n s e t o t h o s e t h a t ar e i n j u r e d o r i n n e e d o r c o n s i s t e n t m e d i c a l c a r e , s u c h a s t h o s e w i t h ch r o n i c h e a l t h c o n d i t i o n s o r i l l n e s s e s . C h i l d r e n , o l d e r a d u l t s , in d i v i d u a l s w i t h di s a b i l i t i e s , a n d i n d i v i d u a l s w i t h c h r o n i c h e a l t h co n d i t i o n s o r i l l n e s s e s m a y n o t b e a b l e t o s a f e l y e v a c u a t e fl o o d w a t e r h a z a r d a r e a s . Ai r Q u a l i t y Ou t d o o r w o r k e r s a n d p e o p l e e x p e r i e n c i n g h o m e l e s s n e s s ar e d i s p r o p o r t i o n a l l y v u l n e r a b l e t o p o o r a i r q u a l i t y be c au s e t h e y a r e o u t d o o r s a n d a r e d i r e c t l y e x p o s e d t o a i r p o l l u t a n t s (CD P H 20 1 7 ) . Un d e r -re s o u r c e d i n d i v i d u a l s m a y b e d i s p r o p o r t i o n a l l y i m p a c t e d b y po o r a i r q u a l i t y b e c a u s e t h e i r ho u s i n g la c k su f f i c i e n t a i r f i l t r a t i o n an d t h e y m a y n o t b e a b l e t o a f f o r d s u p p l e m e n t a l a i r f i l t r a t i o n eq u i p m e n t ( G a m b l e e t a l . 2 0 1 6 ) . I n d i v i d u a l s i n t h e s e g r o u p s m a y ex p e r i e n c e t h e d e v e l o p m e n t o r e x a c e r b a t i o n o f r e s p i r a t o r y i l l n e s s e s an d a r e l e s s l i k e l y t o r e c e i v e m e d i c a l t r e a t m e n t ( C a l i f o r n i a De p a r t m e n t o f P u b l i c H e a l t h 2 0 1 7 ) . No n -wh i t e c o m m u n i t i e s a r e v u l n e r a b l e t o h e a l t h i m p a c t s a s s o c i a t e d wi t h p o o r a i r q u a l i t y b e c a u s e t h e i r h o u s i n g m a y l a c k s u f f i c i e n t a i r fi l t r a t i o n a n d t h e y m a y n o t b e a b l e t o a f f o r d s u p p l e m e n t a l a i r fi l t r a t i o n e q u i p m e n t ( G a m b l e e t a l . 2 0 1 6 ) . L i n g u i s t i c a l l y i s o l a t e d in d i v i d u a l s m a y n o t b e a b l e t o r e a d a i r q u a l i t y a d v i s o r y w a r n i n g s o r go v e r n m e n ta l g u i d a n c e t h a t a r e i n E n g l i s h , p o t e n t i a l l y c a u s i n g t h e m to e x p e r i e n c e g r e a t e r e x p o s u r e t o e x t r e m e h e a t ( CD P H 20 1 7 ) . In d i v i d u a l s w i t h c h r o n i c h e a l t h c o n d i t i o n s o r h e a l t h r e l a t e d se n s i t i v i t i e s a r e a t r i s k o f d e v e l o p i n g o r e x p e r i e n c i n g e x a c e r b a t e d he a l t h i mp a c t s f r o m p o o r a i r q u a l i t y . C h i l d r e n a r e e x t r e m e l y vu l n e r a b l e t o h e a l t h i m p a c t s f r o m p o o r a i r q u a l i t y b e c a u s e t h e i r re s p i r a t o r y s y s t e m h a s n o t f u l l y d e v e l o p e d y e t ( CD P H 20 1 7 ) . O l d e r ad u l t s , m i l i t a r y v e t e r a n s , a n d p o l l u t i o n b u r d e n e d i n d i v i d u a l s a r e vu l n e r ab l e t o h e a l t h i m p a c t s f r o m p o o r a i r q u a l i t y b e c a u s e t h e y a r e mo r e l i k e l y t o h a v e u n d e r l y i n g r e s p i r a t o r y a n d / o r c a r d i o v a s c u l a r co n d i t i o n s . I n d i v i d u a l s w i t h c a r d i o v a s c u l a r d i s e a s e a n d i n d i v i d u a l s wi t h a s t h m a m a y e x p e r i e n c e s e v e r e h e a l t h i m p a c t s i f e x p o s e d t o po o r a i r q u a l i t y ( E P A 2 0 2 2 ) . Se a L e v e l R i s e Peo p l e w h o l i v e i n i n u n d a t i o n z o n e s m a y n e e d t o re t r o f i t ho m e s t o a d a p t t o s e a l e v e l r i s e a n d a s s o c i a t e d i m p a c t s su c h a s m o l d . Th i s ac t i v i t y is p a r t i c u l a r l y d i f f i c u l t f o r t h o s e w i t h li m i t e d a c c e s s t o r e s o u r c e s , i n c l u d i n g i n d i v i d u a l s w h o a r e un e m p l o y e d , an d lo w -in c o m e i n d i v i d u a l s . Li n g u i s t i c a l l y i s o l a t e d in d i v i d u a l s m a y n o t h a v e a c c e s s t o n o n -En g l i s h v e r s i o n s o f s e a -le v e l - ri s e p r e p a r e d n e s s g u i d a n c e a n d t h e r e f o r e m a y n o t b e a b l e t o pr e p a r e f o r a n d c o p e w i t h s e a -lev e l -ri s e . (Co o l e y 2 0 1 2 ). Ad a p t i v e C a p a c i t y Ca r l s b a d h a s p l a n s , p o l i c i e s a n d p r o g r a m s i n p l a c e t h a t p r o t e c t vu l n e r a b l e p o p u l a t i o n s a c r o s s a l l c l i m a t e h a z a r d s . T h e l e v e l o f en f o r c e a b i l i t y , im p l e m e n t a t i o n , a n d e f f i c a c y v a r i e s b a s e d o n t h e ha z a r d t y p e . Sa n Di e g o C o u n t y A I S Co o l Z o n e s a n d F a n P r o g r a m be n e f i t s t h e el d e r l y i n a d d r e s s i n g e x t r e m e h e a t c o n c e r n s . Pl a n s c o n c e r n i n g sto r m w a t e r f l o o d i n g an d dr o u g h t ma i n l y ad d r e s s in f r a s t r u c t u r e r e s i l i e n c e a n d w a t e r r e l i a b i l i t y a n d d r a i n a g e , in t u r n he l p i n g v u l n e r a b l e p o p ul a t i o n s . P l a n s l i k e th e C a r l s b a d M u n i c i p a l Wa t e r D i s t r i c t U W M P a n d th e O M W D P o t a b l e W a t e r , Re c y c l e d May 12, 2026 Item #10 Page 247 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 42 Wa t e r , a n d S e w e r Ma s t e r P l a n s, ca n s e r v e a s a p l a t f o r m o f w a t e r as s u r a n c e f o r v u l n e r a b l e p o p u l a t i o n s . Ad d i t i o n a l l y , t h e d e s a li n a t i o n pl a n t s e r v e s a s a s o u r c e o f w a t e r r e s i l i e n c e i n t h e f a c e o f d r o u g h t be n e f i t i n g v u l n e r a b l e p o p u l a t i o n s . Th e L o c a l C o a s t a l P l a n h a s l i t t l e m e n t i o n o f t h e h u m a n i m p a c t S L R po s e s t o v u l n e r a b l e p o p u l a t i o n . Ho w e v e r , th i s d o c u m e n t do e s ma k e me n t i o n o f m a n y a d a p t i o n s t r a t e g i e s t h a t b e n e f i t v u l n e r a b l e po p u l a t i o n s a f f l i c t e d b y S L R . Vu l n e r a b i l i t y S c o r e Th e fo l l o w i n g ta b l e in c l u d e s vu l n e r a b i l i t y s c o r e s f o r V u l n e r a b l e Po p u l a t i o n s i n C a r l s b a d . V u l n e r a b i l i t y s c o r e s are a co m b i n a t i o n o f th e i m p a c t a n d a d a p t i v e c a p a c i t y s c o r e . T h e i m p a c t a n d a d a p t i v e ca p a c i t y s c o r e s a r e d e v e l o p e d u s i n g a q u a l i t a t i v e m e t h o d o l o g y ou t l i n e d i n t h e C a l A P G , a s s e e n i n Ta b l e 1. Cl i m a t e H a z a r d Im p a c t S c o r e Ad a p t i v e C a p a c i t y S c o r e Vu l n e r a b i l i t y S c o r e Ex t r e m e H e a t Hi g h Me d i u m 4-Hi g h Dr o u g h t Hi g h Me d i u m 4-Hi g h Wi l d f i r e Hi g h Me d i u m 4-Hi g h La n d s l i d e s Lo w Lo w 3-Me d i u m Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Me d i u m Lo w 4-Hi g h Ai r Q u a l i t y Hi g h Lo w 5-Hi g h Se a L e v e l R i s e Hi g h Me d i u m 4-Hi g h May 12, 2026 Item #10 Page 248 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Vu l n e r a b i l i t y A n a l y s i s Pu b l i c S a f e t y E l e m e n t U p d a t e 43 5. 2 Na t u r a l an d R e c r e a t i o n a l Re s o u r c e s Pr i m a r y v u l n e r a b i l i t i e s f o r n a t u r a l r e s o u r c e s a r e as s o c i a t e d w i t h c l i m a t e h a z a r d -ca u s e d s t r e s s a n d p h y s i c a l da m a g e t o r e s o u r c e t y p e s w i t h i n t h i s a s s e t g r o u p . Co m p o u n d i n g c l i m a t e h a z a r d s s t r e s s n a t u r a l e c o s y s t e m s p a s t t h e i r ab i l i t y t o a b s o r b i n d i v i d u a l c l i m at e h a z a r d s . Wil d l i f e w i l l s e e k o u t mo r e c o n d u c i v e h a b i t a t s d u r i n g c l i m a t e h a z a r d s s u c h a s e x t r e m e he a t o r d r o u g h t w h i c h t e n d t o b e w h e r e p e o p l e re c r e a t e ( U S D A 20 2 0 ) . R e c r e a t i o n a l a r e a s a r e a l s o p l a c e d u n d e r i n c r e a s e d r i s k v i a cl i m a t e p r o j e c t i o n s c r e a t i n g ad d i t i o n a l s t r e s s an d c o m p e t i n g n e e d s fo r s a f e h a b i t a t s . Im p a c t s r e l a t e d t o h a b i t a t s h i f t s a r e e x a c e r b a t e d co m p a r e d t o ru r a l c o m m u n i t i e s as d e n s e l y p o p u l a t e d a n d is o l a t e d op e n s p a c e a r e a s h a v e l i m i t e d o p p o r t u n i t i e s f o r re -se e d i n g o r r e - ha b i t a t i o n fr o m a d j a ce n t a r e a s . N a t u r a l r e s o u r c e s a r e h i g h l y vu l n e r a b l e t o t h e e f f e c t s o f c l i m a t e c h a n g e i n Ca r l s b a d . Po t e n t i a l I m p a c t s Ex t r e m e H e a t Th e i m p a c t s u n d e r e x t r e m e h e a t a n d w a r m n i g h t s a r e si m i l a r t o i m p a c t s e x p e r i e n c e d b y v u l n e r a b l e p o p u l a t i o n s . Wi l d l i f e u n d e r th e s e c o n d i t i o n s f a c e i m p a c t s o f h e a t s t r e s s a n d h e a t re l a t e d i l l n e s s a s w e l l a s d i s r u p t e d r e p r o d u c t i v e c y c l e s , a n d co m p o u n d i n g r i s k s a s s o c i a t e d w i t h e a r l y a n d e x t e n d e d s e a s o n a l te m p e r a t u r e i n c r e a s e s ( B a c k l u n d 2 0 0 8 ) . Be c a u s e i t i s s e a s o n a l l y wa r m e r e a r l i e r in t h e y e a r s p e c i e s c a n e m e r g e e a r l y w i t h n o f o o d so u r c e an d p o t e n t i a l l y f a c e a de l a y e d co l d f r o n t wh i c h i n c r e a s e s mo r t a l i t y r a t e s . T i m i n g o f s e a s o n a l w a r m t h m a y n o t o v e r l a p w i t h fo o d s o u r c e s a n d e x t r e m e h e a t m a y s t r e s s d e p e n d e n t v e g e t a t i o n co m m u n i t i e s a n d w i l d l i f e ( D a l e , 1 9 9 7 , H a m e r l y n c k 1 9 9 5 , M a c l e a n 20 1 1 ) . P l a n t s ar e mo r e l i k e l y t o e x p e r i e n c e h e a t s t r e s s a n d d r y i n g , sp e c i e s ’ h a b i t a t r a n g e s m a y s h i f t an d b e r e p l a c e d w i t h i n v a s i v e sp e c i e s in c l u d i n g u r b a n f o r e s t r y . S om e p e s t s c a n p r o l i f e r a t e m o r e ea s i l y w i th w a r m e r t e m p e r a t u r e s (H a m e r l y n c k 1 9 9 5 ) , a n d s o m e pl a n t s a n d a n i m a l s i l l -su i t e d t o t h e n e w w a r m e r c o n d i t i o n s m a y su f f e r i n c r e a s e d m o r t a l i t y r a t e s ( C A , 2 0 2 2 ) . N a t u r a l r e s o u r c e s a r e hi g h l y e x p o s e d t o e x t r e m e h e a t a n d w a r m n i g h t s . B o t h m i d - an d en d - of ce n t u ry p r o j e c t i o n s d e p i c t d r a m a t i c i n c r e a s e s i n e x t r e m e he a t d a y s (C E C 2 0 2 1 ) . Dr o u g h t Im p a c t s f r o m d r o u g h t i n v o l v e r i s k s a s s o c i a t e d w i t h w a t e r sc a r c i t y a n d a v a i l a b i l i t y f o r r e l i a n t n a t u r a l r e s o u r c e s . Dr o u g h t w i l l d i s r u p t h a b i t a t s a n d w i l d l i f e ab i l i t i e s t o s u r v i v e f r o m de h y d r a t i o n an d r e l i a b l e f o o d s o u r c e s . Th e C i t y s u p p o r t s a n u m b e r of s e n s i t i v e p l a n t a n d w i l d l i f e s p e c i e s d e p e n d e n t o n w e t l a n d a n d ti d a l h a b i t a t s . Ex t e n d e d o r v a r i a b l e d r o u g h t c o n d i t i o n s e f f e c t t h e am o u n t a n d d u r a t i o n w a t e r i s a v a il a b l e i n e p h e m e r a l a n d pe r m a n e n t w a t e r s s o u r c e s , i m p a c t i n g p l a n t s a n d w i l d l i f e d e p e n d e n t on t h o s e a q u a t i c r e s o u r c e s (B u r k e t t 2 0 0 0 ) . Th i s i n c l u d e s un s u p p o r t a b l e u r b a n f o r e s t r y a s w e l l a s l a g o o n s . Wi l d f i r e Th e l a r g e s t d i r e c t i m p a c t s t o n a t u r a l r e s o u r c e s a re c a u s e d by w i l d f i r e s . T h e r e i s d i r e c t m o r t a l i t y a n d l o s s o f r e s o u r c e s an d w i l d l i f e f r o m w i l d f i r e a s w e l l a s i n d i r e c t m o r t a l i t y d u e t o un i n h a b i t a b l e a r e a s , l o s s o f a v a i l a b l e f o o d s o u r c e s a n d s e e d b a n k (B a c k l u n d 2 0 0 8 ) . T h e s e v e r i t y a n d f r e q u e n c y o f w i l d f i r es c a n ex a c e r b a t e t h e s e i m p a c t s f u r t h e r t h r o u g h h a b i t a t c o n v e r s i o n s re s u l t i n g i n v e g e t a t i o n c o m m u n i t i e s t h a t n o l o n g e r s u p p o r t s t h e sp e c i e s u s i n g t h a t h a b i t a t an d t h e l a n d s c a p e p r o v i d i n g m i n i m a l al t e r n a t i v e h a b i t a t s (B e l l e t . a l 1 9 9 9 , S t e p h e n s o n e t . a l 1 9 9 9 , Co o p e t . May 12, 2026 Item #10 Page 249 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 44 al 20 2 0 ). A s d i s c u s s e d w i t h t h e Ex p o s u r e t o Cl i m a t e H a z a r d s se c t i o n , ex t r e m e w i l d f i r e r i s k d a y s a r e p r o j e c t e d t o i n c r e a s e t h r o u g h t h e e n d of th e c e n t u r y ( C E C 2 0 2 1 ) . Fi g u r e 2 de p i c t s t h e s p r e a d o f V H F H S Z ’s bo r d e r i n g an d f u l l y e n c o m p a s s i n g a r e a s wi t h n a t u r a l r e s o u r c e s . La n d s l i d e s La n d s l i d e s u s c ep t i b i l i t y is l i m i t e d a n d t he l i k e l i h o o d o f la n d s l i d e s oc c u r r i n g i s de t e r m i n e d b y pr e c i p i t a t i o n a n d w i l d f i r e oc c u r r i n g s e q u e n t i a l l y (C A , 2 0 2 2 ) . I n t h e e v e n t o f a l a n d s l i d e t h e r e i s po t e n t i a l f o r l o s s o f l a n d s , h a b i t a t , a n d d i s r u p t i o n o f w a t e r b o d i e s i n ar e a s o f d e b r i s f l o w . Th e s u s c e p t i b i l i t y o f n a t u r a l r e s o u r c e l a n d s i n Ca r l s b a d to l a n d s l i d e s i s l e s s t h a n o t h e r h a z a r d s s u c h a s w i l d f i r e b u t th e r i s k s a r o u n d l o s s o f t o p s o i l a n d h a b i t a t c o n v e r s i o n s c an i n c r e a s e th e sc o p e o f i m p a c t . W i l d l i f e a n d p l a n t s f a c e a c o m p o u n d i n g r i s k wh e n p r e s e n t e d w i t h l a n d s l i d e e v e n t s . Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Fl o o d i n g i m p a c t s a r e m a i n l y c a u s e d b y a s s o c i a t e d e r o s i o n an d t h e d e t r i m e n t a l e f f e c t s f l o o d i n g c a n h a v e o n w a t e r qu a l i t y , e s p e c i a l l y t o a q u a t i c a n d f i s h s p e c i e s d e p e n d e n t o n w a t e r qu a l i t y f o r s u r v i v a l ( T a l b o t 2 0 1 8 ) . R i v e r i n e a n d s t o r m w a t e r f l o o d i n g wi l l m o s tl y a f f e c t s e n s i t i v e s p e c i e s o f p l a n t s a n d w i l d l i f e t h a t a r e n o t up l a n d b a s e d . Ot h e r im p a c t s i n c l u d e d a m a g e f r o m i n u n d a t i o n wi t h i n s t o r m f l o o d e d a r e a s s u c h a s h a b i t a t s a n d l a n d s a r o u n d st r e a m s a n d w a t e r b o d i e s i n t h e Cit y . Ad d i t i o n a l l y , st o r m w a t e r fl o o d i n g ca n r e d u c e o v e r a l l w a t e r q u a l i t y t h r o u g h a l g a e b l o o m s ca u s i n g wa t e r q u a l i t y is s u e s w i t h i n w e t l a n d s ( E P A 2 0 2 2 ) . Ai r Q u a l i t y Th e d i r e c t e f f e c t s o f a i r q u a l i t y de c l i n e s on n a t u r a l re s o u r c e s re l a t e s t o p l a n t a n d w i l d l i f e h e a l t h a s i n c r e a s e d ai r p o l l u t a n t s c a u se s s t r e s s a n d m o r t a l i t y . I m p a c t s f r o m a i r q u a l i t y ca n f u r t h e r i m p a c t n a t u r a l r e s o u r c e s s i n c e a i r q u a l i t y d e c l i n e s co r r e s p o n d w i t h o t h e r h a z a r d s , c o m p o u n d i n g r i s k s . Se a L e v e l R i s e Im p a c t s t o n a t u r a l r e s o u r c e s a r e s u m m a r i z e d i n Tab l e 8. Th e ex t e n t t o w h i c h c o a s t a l i n u n d a t i o n a f f e c t s h a b i t a t s , w i l d l i f e , a n d pl a n t s i s l a r g e w i t h i n C a r l s b a d . E n v i r o n m e n t a l l y s e n s i t i v e l a n d s s u c h as w e t l a n d s , r i p a r i a n a r e a s , an d wo o d l a n d s ar e m o st a f f e c t e d b y se a le v e l r i s e an d s h o w l i m i t a t i o n s i n a b i l i t y t o s h i f t h a b i t a t l o c a t i o n (C a r l s b a d 2 0 1 7 ) . Vu l n e r a b i l i t y d e t e r m i n e d w i t h i n t h e C a r l s b a d S e a Le v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t o u t l i n e s mo d e r a t e t o hi g h ra t i n g s f o r n a t u r a l r e s o u r c e s t h r o u g h t h e e n d o f t h e c e n t u r y . Tab l e 8 Ci t y -Wi d e S e a L e v e l R i s e V u l n e r a b i l i t y S u m m a r y As s e t C a t e g o r y Ho r i z o n Im p a c t e d A s s e t s Ov e r a l l V u l n e r a b i l i t y Ra t i n g ( L o w -Hi g h ) Be a c h e s 20 5 0 27 a c r e s Mo d e r a t e 21 0 0 14 6 a c r e s Hi g h St a t e P a r k s 20 5 0 6 Pa r c e l s Mo d e r a t e - Hi g h 21 0 0 6 P a r c e l s Mo d e r a t e - Hi g h En v i r o n m e n t a l l y Se n s i t i v e L a n d s 20 5 0 1, 0 8 8 a c r e s Mo d e r a t e 21 0 0 1, 1 6 4 a c r e s Hi g h So u r c e : C i t y o f C a r l s b a d 2 0 1 7 S e a L e v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t Pl a n s a n d P r o g r a m s i n P l a c e t o Al l e v i a t e C l i m a t e Im p a c t s o n N a t u r a l R e s o u r c e s ( A d a p t i v e C a p a c i t y ) Th e r e a r e n o r e l e v a n t p l a n s p r o g r a m s o r p o l i c i e s d i r e c t l y i n c r e a s i n g th e a d a p t i v e c a p a c i t y o f C a r l s b a d n a t u r a l r e s o u r c e s t o t h e c l i m a t e ha z a r d o f e x t r e m e h e a t . As o n e o f t h e f e w c i t i e s w i t h an ad o p t e d Loc a l Coa s t a l Pla n (L C P ) an d a Ha b i t a t M a n a g e m e n t P l a n th e r e i s a May 12, 2026 Item #10 Page 250 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Vu l n e r a b i l i t y A n a l y s i s Pu b l i c S a f e t y E l e m e n t U p d a t e 45 fa i r a m o u n t of e x i s t i n g ca p a c i t y t o m a n a g e t h e n a t u r a l r e s o u r c e s un i q u e t o t h e c o m m u n i t y . Si n c e t h e Ha b i t a t M a n a g e m e n t P l a n ’s ap p r o v a l in 2 0 0 4 un d e r s t a n d i n g o f t h e h a z a r d s h a s i n cr e a s e d ar o u n d in s i g h t s t o h o w c l i m a t e c h a n g e c a n c r e a t e v u l n e r a b i l i t i e s f o r na t u r a l r e s o u r c e s . T h e L C P wh i c h i s s u p p o r t e d b y t h e C a r l s b a d S e a Le v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t d o e s o f f e r in s i g h t s o n ho w se a le v e l r i s e wi l l i m p a c t n a t u r a l r e s o u r c e s a s w e l l a s a d a p t a t i o n st r a t e g i e s i n r e l a t i o n t o c l i m a t e c h a n g e . Re l a t e d t o w i l d f i r e , th e r e a r e e x i s t i n g p r o g r a m s a n d p l a n s on ve g e t a t i o n m a n a g e m e n t f o u n d i n Ta b l e 6 an d Ta b l e 7. In d i r e c t p l a n n i n g e x i s t s a r o u n d a d a p t i o n f o r n a t u r a l r e s o u r c e s ar o u n d f l o o d i n g a n d d r o u g h t i n c l u d i n g t he Sa n D i e g o I n t e g r a t e d Re g i o n a l W a t e r M a n a g e m e n t P l a n : I n t e g r a t e d F l o o d M a n a g e m e n t Pl a n n i n g R e p o r t , Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t ( C M W D ) U r b a n Wa t e r M a n a g e m e n t P l a n , th e OM W D P o t a b l e W a t e r a n d R e c y c l e d Wa t e r M a s t e r P l a n, a n d t h e Va l l e c i t o s W a t e r D i s t r ic t W a t e r , Wa s t e w a t e r , a n d R e c y c l e d W a t e r M a s t e r P l a n . Vu l n e r a b i l i t y S c o r e fo r N a t u r a l R e s o u r c e s Th e f o l l o w i n g t a b l e i n c u d e s v u l n e r a b i l i t y s c o r e s f o r Na t u r a l Re s o u r c e s in C a r l s b a d . V u l n e r a b i l i t y s c o r e s a r e a c o m b i n a t i o n o f t h e im p a c t a n d a d a p t i v e c a p a c i t y s c o r e . T h e i m p a c t a n d a d a p t i v e ca p a c i t y s c o r e s a r e d e v e l o p e d u s i n g a q u a l i t a t i v e m e t h o d o l o g y ou t l i n e d i n t h e C a l A P G , a s s e e n i n Ta b l e 1. Cl i m a t e H a z a r d Im p a c t S c o r e Ad a p t i v e C a p a c i t y S c o r e Vu l n e r a b i l i t y S c o r e Ex t r e m e H e a t / W a r m N i g h t s Hi g h Lo w 5-Hi g h Dr o u g h t Hi g h Lo w 5-Hi g h Wi l d f i r e Hi g h Me d i u m 4-Hi g h La n d s l i d e s Lo w Lo w 3-Me d i u m Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Hi g h Me d i u m 4-Hi g h Ai r Q u a l i t y Me d i u m Lo w 4-Hi g h Se a L e v e l R i s e Hi g h Me d i u m 4-Hi g h May 12, 2026 Item #10 Page 251 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 46 5. 3 Bu i l d i n g s a n d F a c i l i t i e s Vu l n e r a b i l i t i e s w i t h i n t h i s a s s e t c a t e g o r y p r i m a r i l y co n c e r n p h y s i c a l e x p o s u r e a n d d a m a g e s r e l a t e d t o cl i m a t e h a z a r d s . Im p a c t s t o b u i l d i n g s a n d f a c i l i t i e s r e l a t e d to h o s p i t a l i t y a n d e n t e r t a i n m e n t s u c h a s L e g o l a n d a n d h o t e l s m a y ha v e c a s c a d i n g i m p a c t s a c r o s s e c o n o m i c p r o d u c t i v i t y a n d v i a b i l i t y . Im p a c t s a s s o c i a t e d w i t h o p e r a t i o n s o f c r i t i c a l s e r v i c e s a r e d i s c u s s e d un d e r In f r a s t r u c t u r e an d C r i t i c a l S e r v i c e s . Po t e n t i a l I m p a ct s Ex t r e m e H e a t a n d W a r m N i g h t s Ex t r e m e h e a t c o u l d i m p a c t o c c u p a n t s o f b u i l d i n g s a n d fa c i l i t i e s t h a t a r e n o t a d e q u a t e l y w e a t h e r i z e d f o r in c r e a s e d t e m p e r a t u r e s . Dr o u g h t Dr o u g h t w i l l h a v e m i n i m a l i m p a c t o n t h e p h y s i c a l st r u c t u r e s o f b u i l d i n g s a n d f a c i l i t i e s a c r o s s Ca r l s b a d . Wi l d f i r e Th e s t r u c t u r e s a n d b u i l d i n g s t h a t o c c u p y w i l d f i r e h a z a r d zo n e s a r e a t r i s k o f s t r u c t u r a l d a m a g e f r o m w i l d f i r e s . Th e r e a r e se v e r a l c r i t i c a l f a c i l i t i e s in t h e C it y ’s w i l d f i r e h a z a r d z o n e s sh o w n i n Fi g u r e 2. La n d s l i d e s La n d s l i d e s u s c e p t i b i l i t y f o r Ca r l s b a d ov e r l a p s w i t h sl o p e d wi l d f i r e h a z a r d z o n e s ( C D O C 2 0 2 1 ) . Im p a c t s t o b u i l d i n g s an d f a c i l i t i e s as o u t l i n e d i n t h e m u l t i -ju r i s d i c t i o n h a z a r d m i t i g a t i o n pl a n en c o m p a s s 2 c o m m e r c i a l b u i l d i n g s a n d 2 0 4 r e s i d e n t i a l bu i l d i n g s . Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Th e r e i s mi n i m a l r i s k t o t h e p h y s i c a l s t r u c t u r e s o u t l i n e d un d e r t h i s a s s e t c a t e g o r y t o r i v e r i n e a n d s t o r m w a t e r fl o o d i n g . T h e l o c a t i o n o f f l o o d p l a i n s i n Fi g u r e 3 sh o w on l y a sl i g h t ri s k o f i m p a c t ba s e d o n c u r r e n t fl o o d co n d i t i o n s . Ai r Q u a l i t y Th e i m p a c t o f r e d u c e d a i r q u a l i t y w i l l h a v e a s i m i l a r e f f e c t as e x t r e m e h e a t f o r b u i l d i n g s a n d f a c i l i t i e s . T h e a b i l i t y t o f i l t e r a i r wi l l g r e a t l y a f f e c t t h e r e l i a n t s u b s y s t e m s , s e r v i c e s , a n d p o p u l a t i o n s re l i a n t o n t h e b u i l d i n g s a n d f a c i l i t i e s . T h e d i r e c t i m p a c t o n st r u c t u r e s i s l o w . Se a L e v e l R i s e As o u t l i n e d i n Ta b l e 9 th e r e i s a l a r g e s c o p e o f e n d - ce n t u r y i m p a c t e d a s s e t s t o se a l e v e l r i s e wi t h 6 5 7 p a r c e l s of r e s i d e n t i a l a n d c o m m e r c i a l l y z o n e d a r e a s b e i n g i n u n d a t e d (C a r l s b a d 2 0 1 7 ) . P h y s i c a l d a m a g e s b r o u g h t a b o u t b y c o a s t a l flo o d i n g a r e m a i n l y r e l a t e d t o co a s t a l fl o o d i n g as i t c a u s e s s t r u c t u r a l da m a g e s . Th e a c t u a l l i k e l i h o o d o f b u i l d i n g s a n d f a c i l i t i e s b e i n g fl o o d e d d u e t o s e a l e v e l r i s e i s l o w , h o w e v e r d u e t o t h e h i g h v a l u e of t h e st r u c t u r e ’ s vu l n e r a b i l i t y w a s l i s t e d a s m o d e r at e ( C a r l s b a d 20 1 7 ) . Fi n d i n g s f r o m t h e S e a L e v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t w e r e so r t e d i n t o t h r e e p l a n n i n g z o n e s w i t h d i f f e r e n t v u l n e r a b i l i t y s c o r e s as s o c i a t e d w i t h l e v e l s o f i m p a c t a n d a d a p t i v e c a p a c i t y . W i t h i n Pl a n n i n g Zo n e 1 t h e r e w a s a l i s t e d m od e r a t e v u l n e r a b i l i t y by 20 5 0 an d a h i g h v u l n e r a b i l i t y b y 2 1 0 0 w i t h a f f e c t e d a r e a s in th e n o r t h e r n May 12, 2026 Item #10 Page 252 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Vu l n e r a b i l i t y A na l y s i s Pu b l i c S a f e t y E l e m e n t U p d a t e 47 po r t i o n o f t h e Vi l l a g e Pl a n n i n g A r e a a n d t h e B u e n a V i s t a L a g o o n . Pl a n n i n g Zo n e 2 h a s a h i g h v u l n e r a b i l i t y s c o r e wi t h a ff e c t e d st r u c t u r e s of t h e res i d e n t i a l p a r c e l s a l o n g T e r r a m a r Po i nt , th e no r t h e r n s h o r e l i n e o f A g u a H e d i o n d a L a g o o n , Hu b b s S e a W o r l d Re s e a r c h I n s t i t u t e , t h e C a r l s b a d A q u a F a r m , an d t h e Y M C A f a c i l i t y . Pl a n n i n g Zo n e 3 h a s a m o d e r a t e v u l n e r a b i l i t y r a t i n g wi t h un d e v e l o p e d l a n d s a n d a g o l f c o u r s e o n t h e no r t h s i d e o f t h e Ba t i qu i t o s L ag o o n . C o l l e c t i v e l y t h e c o m m u n i t y ’ s b u i l d i n g s a n d fa c i l i t i e s ar e r a t e d a s l o w t o m o d e r a t e l y v u l n e r a b l e t o s e a l e v e l r i s e by 2 0 5 0 a n d m o d e r a t e l y t o h i g h l y v u l n e r a b l e b y 2 1 0 0 ( C a r l s b a d 20 1 7 ) . Ta b l e 9 Ci t y -Wi d e S e a L e v e l Ri s e V u l n e r a b i l i t y S u m m a r y As s e t C a t e g o r y Ho r i z o n Im p a c t e d A s s e t s Ov e r a l l V u l n e r a b i l i t y Ra t i n g ( L o w -Hi g h ) Pa r c e l s 20 5 0 56 4 P a r c e l s Mo d e r a t e 21 0 0 65 7 P a r c e l s Hi g h As s e t C a t e g o r y Ho r i z o n Im p a c t e d A s s e t s Ov e r a l l V u l n e r a b i l i t y Ra t i n g ( L o w -Hi g h ) Cr i t i c a l In f r a s t r u c t u r e 20 5 0 0 P a r c e l s Lo w 21 0 0 8 P a r c e l s Mo d e r a t e So u r c e : C i t y o f Ca r l s b a d 2 0 1 7 S e a L e v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t Pl a n s a n d P r o g r a m s i n P l a c e t o A l l e v i a t e C l i m a t e Im p a c t s o n Bu i l d i n g s a n d F a c i l i t i e s (A d a p t i v e Ca p a c i t y ) Ca r l s b a d h a s mi n i m a l ex i s t i n g a d a p t i v e c a p a c i t y t o in c r e a s e t h e we a t h e r i z a t i o n o f b u i l d i n g s a n d f a c i l i t i e s t h r o u g h o u t t h e c i t y . SD G &E w i l d f i r e m i t i g a t i o n p l a n an d t h e Ca r l s b a d P u b l i c Sa f e t y el e m e n t a r e t h e o n l y p l a n s a n d p o l i c i e s w i t h m e n t i o n o f s t r u c t u r e ha r d e n i n g . Th e Ci t y o f C a r l s b a d L o c a l C o a s t a l P r o g r a m L a n d U s e Pl a n d o e s o f f e r a d a p t i v e c a p a c i t y f o r t h e C i t y i n t h e f o r m o f b e s t pr a c t i c e l a n d u s e f o r d e v e l o p m e n t e x p o s e d t o s e a l e v el r i s e . Vu l n e r a b i l i t y S c o r e fo r B u i l d i n g s a n d F a c i l i t i e s Th e f o l l o w i n g t a b l e i n c u d e s v u l n e r a b i l i t y s c o r e s f o r Bu i l d i n g s a n d Fa c i l i t i e s in C a r l s b a d . V u l n e r a b i l i t y s c o r e s a r e a c o m b i n a t i o n o f t h e im p a c t a n d a d a p t i v e c a p a c i t y s c o r e . T h e im p a c t a n d a d a p t i v e ca p a c i t y s c o r e s a r e d e v e l o p e d u s i n g a q u a l i t a t i v e m e t h o d o l o g y ou t l i n e d i n t h e C a l A P G , a s s e e n i n Ta b l e 1. Cl i m a t e H a z a r d Im p a c t S c o r e Ad a p t i v e C a p a c i t y S c o r e Vu l n e r a b i l i t y S c o r e Ex t r e m e H e a t / W a r m N i g h t s Me d i u m Lo w 4-Hi g h Dr o u g h t Lo w Me d i u m 2-Me d i u m Wi l d f i r e Me d i u m Me d i u m 3-Me d i u m La n d s l i d e s Lo w Lo w 3-Me d i u m Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Lo w Lo w 3-Me d i u m Ai r Qu a l i t y Lo w Lo w 3-Me d i u m Se a L e v e l R i s e Me d i u m Lo w 4-Hi g h May 12, 2026 Item #10 Page 253 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 48 5. 4 In f r a s t r u c t u r e an d C r i t i c a l Se r v i c e s Ov e r a l l v u l n e r a b i l i t i e s a s s o c i a t e d w i t h t h i s a s s e t c a t e g o r y in v o l v e s t r u c t u r a l p r e p a r e d n e s s a n d s e r v i c e r e l i a b i l i t y i n th e f a c e o f cl i m a t e c h a n g e . Th i s s e c t i o n i s m a i n l y co n c e r n e d w i t h t h e c a s c a d i n g im p a c t s ph y s i c a l d a m a g e s t o b u i l d i n g s an d f a c i l i t i e s c a n h a v e o n s e r v i c e s a n d i n f r a s t r u c t u r e . Po t e n t i a l I m p a c t s Ex t r e m e H e a t a n d W a r m N i g h t s As t e m p e r a t u r e s i n c r e a s e , r o a d w a y s , a c t i v e tra n s p o r t a t i o n r o u t e s , a n d r a i l r o a d s a r e v u l n e r a b l e t o da m a g e s t h r o u g h s u s t a i n e d h e a t s u c h a s b u c k l e d r a i l r o a d t i e s a n d cr a c k e d s u r f a c e s ( Ka l a n s k y e t a l . 2 0 1 8 ). A d d i t i o n a l i m p a c t s f r o m ex t r e m e h e a t a r e a s s o c i a t e d w i t h i n c r e a s e d e m e r g e n c y s e r v i c e c a l l s wh i c h ma y st r a i n m e d i c a l s e r v i c e s . E l e c t r i c a l i n f r a s t r u c t u r e c o u l d b e ov e r w h e l m e d b y d e m a n d a n d r e s u l t i n b l a c k o u t s o r e n e r g y pr o v i d e r s c o u l d c o n d u c t p o w e r s a f e t y s h u t o f f s t o a v o i d i m p a c t s t o el e c t r i c a l f a c i l i t i e s . P o w e r o u t a g e s h a v e s i g n i f i c a n t i m p a c t s o n co m m un i c a t i o n n e t w o r k s , w a t e r c o n v e y a n c e , a n d v u l n e r a b l e po p u l a t i o n s . Em e r g e n c y s e r v i c e p r o v i d e r s m a y n o t b e a b l e t o f u l l y fu n c t i o n i f s y s t e m s t h e y r e l y u p o n e x p e r i e n c e p o w e r o u t a g e s ( e . g . , te l e c o m m u n i c a t i o n n e t w o r k , E O C f a c i l i t i e s , e t c . ) . Dr o u g h t Dr o u g h t c a n i m p a c t w a t e r r e l i a b i l i t y a n d w a t e r in f r a s t r u c t u r e . A l l e m e r g e n c y s e r v i c e s d e p e n d o n w a t e r , pa r t i c u l a r l y f i r e f i g h t e r s w h o r e q u i r e a d e q u a t e w a t e r s u p p l y f o r f i r e su p p r e s s i o n . W a t e r p r o v i d e r s w i t h i n t h e Cit y wi l l e n c o u n t e r in c r e a s e d d i f f i c u l t y a s dr o u g h t i m p a c t s g e n e r a l s e r v i c e r e l i a b i l i t y . Dr o u g h t i m p a c t s c a n c r e a t e s e r v i c e s t r a i n f o r e m e r g e n c y a n d me d i c a l s e r v i c e s . C r a c k e d p a v e m e n t s f r o m d r o u g h t c o m p o u n d e d wi t h e x t r e m e h e a t a f f e c t s r o a d w a y s a n d t r a n s p o r t a t i o n r o u t e s . Wi l d f i r e Th e r e a r e so m e f a c i li t i e s l o c a t e d i n t h e V H F H S Z’s a s sh o w n i n Fi g u r e 2. A d d i t i o n a l l y , uti l i t y l i n e s h a v e t h e po t e n t i a l t o b e d a m a g e d i n h i g h -ri s k l o c a t i o n s , r e s u l t i n g i n o i l a n d ga s l e a k s an d p o w e r o u t a g e s . U t i l i t y l i n e s u n d e r c e r t a i n h i g h w i n d co n d i t i o n s c a n a l s o t r i g g e r w i l d f i r e s t h r o u g h d o w n e d p o w e r l i n e s (K a l a n s k y e t a l . 2 0 1 8 ) . P ow e r s a f e t y s h u t o f f s i n r e s p o n s e t o w i l d f i r e ri s k c a n a f f e c t s e r v i c e r e l i a b i l i t y o f p o w e r . I n c r e a s e d f r e q u e nc y o f wi l d f i r e s c a n p l a c e s t r a i n o n f i r e a n d e m e r g e n c y s e r v i c e s . E va c u a t i o n ro u t e s c o u l d b e d i s r u p t e d d u r i n g a w i l d f i r e e v e n t l i m i t i n g em e r g e n c y r e s p o n d e r s a n d a b i l i t y f o r p e o p l e t o e v a c u a t e as w e l l . Po s t -wi l d f i r e t h e r e a r e a d d i t i o n a l i s s u e s o f d i s p l a c e m e nt a n d n e e d s fo r t e m p o r a r y s h e l t e r s f o r u p r o o t e d c o m m u n i t i e s . La n d s l i d e s Th e r e i s n o p r o j e c t e d i m p a c t o f l a n d s l i d e t o s e r v i c e s a n d in f r a s t r u c t u r e w i t h i n C a r l s b a d . Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Im p e r v i o u s s u r f a c e s c a n i m p e d e t h e a b s o r p t i o n o f w a t e r an d a u g m e n t s t o r m w a t e r f l o o d i n g i n a r e a s o f Ca r l s b a d . Th e r e i s r i s k o f d a m a g e f r o m i n c r e a s e d e x t r e m e p r e c i p i t a t i o n e v e n t s in c l u d i n g e r o s i o n , w a s h o u t s , a n d s i n k h o l e s . St o r m d r a i n a g e a n d fl o o d p r o t e c t i o n se r v i c e s f o r t h e Ci t y ma y b e i m p a c t e d b y t h e s e ev e n t s . Wa t e r s u p p l y f o r f i r e s u p p r e s s i o n a s w e l l a s w i l d f i r e -ca u s e d de c l i n e s i n w a t e r q u a l i t y a r e a d d i t i o n a l c a s c a d i n g i m p a c t s . May 12, 2026 Item #10 Page 254 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Vu l n e r a b i l i t y A n a l y s i s Pu b l i c S a f e t y E l e m e n t U p d a t e 49 Ai r Q u a l i t y Hi g h e r i n c i d e n c e o f u n s a f e a i r q u a l i t y g e n e r a t e d b y in c r e a s e d sm o g , d u s t a n d w i l d f i r e s m o k e c a n c r e a t e ge n e r a l s t r a i n o n e x i s t i n g i n f r a s t r u c t u r e a n d c r i t i c a l s e r v i c e s t h r o u g h in c r e a s e d r a t e s o f h o s p i t a l i z a t i o n a n d e m e r g e n c y a n d m e d i c a l se r v i c e s ( C D P H , 2 0 2 0 ). Se a L e v e l R i s e Th e i m p a c t s C a r l s b a d i s e x p e c t e d t o e x p e r i e n c e r e l a t e d t o s e r v i c e s an d i n f r a s t r u c t u r e a r e mo d e r a t e w h e n p r e s e n t e d t o g e t h e r . T h e r e ar e 8 pa r c e l s of c r i t i c a l i n f r a s t r u c t u r e , 5 . 8 m i l e s o f t r a n s p o r t a t i o n ro u t e s , an d 7 . 3 m i l e s o f l a t e r a l p u b l ic a c c e s s w a y s i m p a c t e d b y se a le v e l r i s e thr o u g h 2 1 0 0 fo u n d i n Ta b l e 10 (C a r l s b a d 2 0 1 7 ) . Pa r t o f a se w e r p u m p s t a t i o n i s e x p e c t e d t o b e i n u n d a t e d b y t h e 2 1 0 0 ho r i z o n an d n e g a t i v e l y i m p a c t t h e c o m m u n i t y t h r o u g h s e r v i c e di s r u p t i o n a n d s e w e r s p i l l s ( C a r l s b a d 2 0 1 7 ) . T h e Ca r l s b a d B o u l e v a r d cr o s s i n g o f B u e n a V i s t a L a g o o n i s c o n s i d e r e d hi g h l y v u l n e r a b l e t o se a l e v e l r i s e b y 2 1 0 0 (C a r l s b a d 2 0 1 7 ) . Ta b l e 10 Ci t y -Wi d e S e a L e v e l R i s e V u l n e r a b i l i t y S u m m a r y As s e t C a t e g o r y Ho r i z o n Im p a c t e d A s s e t s Ov e r a l l V u l n e r a b i l i t y Ra t i n g ( L o w -Hi g h ) Pu b l i c A c c e s s Wa y s 20 5 0 26 b e a c h a c c e s s w a y s 2. 6 m i l e s o f l a t e r a l ac c e s s w a y s Mo d e r a t e 21 0 0 37 b e a c h a c c e s s w a y s 7. 3 mi l e s o f l a t e r a l ac c e s s w a y s Mo d e r a t e Tr a n s p o r t a t i o n 20 5 0 1. 6 M i l e s Hi g h 21 0 0 5. 8 M i l e s Hi g h So u r c e : C i t y o f C a r l s b a d 2 0 1 7 S e a L e v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t Pl a n s a n d P r o g r a m s i n P l a c e t o A l l e v i a t e Cl i m a t e I m p a c t s o n Se r v i c e s a n d In f r a s t r u c t u r e (A d a p t i v e C a p a c i t y ) Th e r e l e v a n t e x i s t i n g p l a n s , p o l i c i e s , a n d p r o g r a m s f o r C a r l s b a d a r e ma i n l y m u l t i -ha z a r d b a s e d . A l l m u l t i -ha z a r d p l a n s , p r o g r a m s a n d sy s t e m s a r e d e s ig n e d t o a d d r e s s s e r v i c e a n d i n f r a s t r u c t u r e f a i l i n g s an d c o n t i n g e n c i e s . E x i s t i n g p l a n n i n g c o v e r s m a i n l y w i l d f i r e w i t h so m e m e n t i o n o f f l o o d h a z a r d s . Re l e v a n t p l a n s a n d s y s t e m s i n p l a c e ar e f o u n d b e l o w : ▪ Sa n D i e g o C o u n t y M u l t i -Ju r i s d i c t i o n a l H a z a r d M i t i g a t i o n P l a n (C o u n t y o f S a n D i e g o 2 0 1 8 ) ▪ San D i e g o C o u n t y E m e r g e n c y O p e r a t i o n s P l a n ( E O P ) ( C o u n t y o f Sa n D i e g o 2 0 1 8 ) ▪ Ci t y o f C a r l s b a d E m e r g e n c y O p e r a t i o n s P l a n ( C i t y o f C a r l s b a d 20 2 1 ) ▪ Ca r l s b a d E m e r g e n c y R e s p o n s e T e a m ( C E R T ) P r o g r a m ▪ Ca r l s b a d E m e r g e n c y O p e r a t i o n s C en t e r ( E O C ) ▪ Sa n D i e g o C o u n t y R e s i l i e n c e P r o g r a m ( C o u n t y o f S a n D i e g o 20 2 0 ) ▪ Al e r t S a n D i e g o E m e r g e n c y N o t i f i c a t i o n S y s t e m ( C o u n t y o f S a n Di e g o 2 0 2 2 ) ▪ Ca r l s b a d Ge n e r a l P l a n Pu b l i c Sa f e t y E l e m e n t ▪ Cl a u d e “ B u d ” L e w i s C a r l s b a d D e s a l i n a t i o n P l a n t ▪ Sa n D i e g o G a s & El e c t r i c ( S D G & E ) P u b l i c S a f e t y P o w e r S h u t o f f (P S P S ) N o t i f i c a t i o n s a n d S u p p o r t i v e S e r v i c e s ( S D G & E 2 0 2 1 ) Ca s c a d i n g r i s k s o f s e r v i c e s an d po w e r d e p e n d e n c i e s a r e a d d r e s s e d in r e l a t i o n t o w i l d f i r e t h r o u g h o u t t h e s e p l a n s a n d p r o g r a m s . May 12, 2026 Item #10 Page 255 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 50 Vu l n er a b i l i t y S c o r e fo r S e r v i c e s a n d I n f r a s t r u c t u r e Th e f o l l o w i n g t a b l e i n c u d e s v u l n e r a b i l i t y s c o r e s f o r Se r v i c e s a n d In f r a s t r u c t u r e in C a r l s b a d . V u l n e r a b i l i t y s c o r e s a r e a c o m b i n a t i o n o f th e i m p a c t a n d a d a p t i v e c a p a c i t y s c o r e . T h e i m p a c t an d a d a p t i v e ca p a c i t y s c o r e s a r e d e v e l o p e d u s i n g a q u a l i t a t i v e m e t h o d o l o g y ou t l i n e d i n t h e C a l A P G , a s s e e n i n Ta b l e 1. Cl i m a t e H a z a r d Im p a c t Sc o r e Ad a p t i v e C a p a c i t y S c o r e Vu l n e r a b i l i t y S c o r e Ex t r e m e H e a t Hi g h Lo w 5-Hi g h Dr o u g h t Hi g h Me d i u m 4-Hi g h Wi l d f i r e Hi g h Hi g h 3-Me d i u m La n d s l i d e s Lo w Lo w 3- Me d i u m Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Hi g h Lo w 5-Hi g h Ai r Q u a l i t y Hi g h Lo w 5-Hi g h Se a Le v e l R i s e Me d i u m Lo w 4-Hi g h May 12, 2026 Item #10 Page 256 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Co n c l u s i o n Pu b l i c S a f e t y E l e m e n t U p d a t e 51 6 Co n c l u s i o n Th i s r e p o r t e v a l u a t e s h o w c l i m a t e c h a n g e m a y i m p a c t v u l n e r a b l e co m m u n i t y m e m b e r s , n a t u r a l r e s o u r c e s , c r i t i c a l f a c i l i t i e s , b u i l d i n g s , se r v i c e s , a n d i n f r a s t r u c t u r e i n Ca r l s b a d . Th e r e p o r t p r o v i d e s a pr i o r i t i z e d l i s t o f v u l n e r a b l e p o p u l a t i o n g r o u p s a n d a s s e t s fo r w h i c h ad a p t a t i o n p o l i c i e s a n d p r o g r a m s s h o u l d b e d e v e l o p e d a n d im p l e m e n t e d t o i n c r e a s e c o m m u n i t y r e s i l i e n c e . Th e C i t y o f C a r l s b a d ’ s Ex p o s u r e t o Cl i m a t e H a z a r d s wa s a n a l y z e d th r o u g h p r o j e c t i o n s f r o m t h e C a l -Ad a p t L o c a l C l i m a t e C h a n g e Sn a p s h o t t o o l a n d re g i o n a l c o n t e x t p r e s e n t e d i n th e C a l i f o r n i a Fo u r t h C l i m a t e C h a n g e A s s e s s m e n t S a n D i e g o r e g i o n r e p o r t . A l i s t o f as s e t c a t e g o r i e s w i t h h i g h v u l n e r a b i li t y s c o r e s i s p r o v i d e d on t h e ne x t p a g e . Th e C i t y ’ s e x p o s u r e t o w i l d f i r e w a s m a p p e d i n Fi g u r e 2. FE M A c l a s s i f i e d f l o o d p l a i n s w e r e a l s o m a p p e d a c r o s s t h e c i t y sh o w i n g 1 0 0 -ye a r a n d 5 0 0 -ye a r f l o o d p l a i n s o c c u p y i n g r e g i o n s cl o s e s t t o t h e o c e a n a n d l a g o o n s w i t h i n c i t y l i m i t s i n Fi g u r e 3. Fi g u r e 4 p r e s e n t s 1 . 6 -fo o t a n d 6 . 6 -fo o t p r o j e c t i o n s o f s e a l e v e l r i s e t h r o u g h th e y e a r s o f 2 0 5 0 a n d 2 1 0 0 r e s p e c t i v e l y , c o n s i s t e n t w i t h th e 2 0 1 7 Ca r l s b a d S e a L e v e l R i s e V u l n er a b i l i t y A s s e s s m e n t . Th e C i t y ’ s a s s e t g r o u p s e x p l o r e d i n t h e Se n s i t i v i t y se c t i o n o u t l i n e d vu l n e r a b l e p o p u l a t i o n s l i s t e d i n Ta b l e 3, n a t u r a l a n d r e c r e a t i o n a l re s o u r c e s , b u i l d i n g s a n d f a c i l i t i e s , a n d i n f r a s t r u c t u r e a n d c r i t i c a l se r v i c e s . Th e Ad a p t i v e C a p a c i t y se c t i o n o u t l i n e d t h e e x i s t i n g p r o g r a m s , pl a n s , a n d p o l i c i e s t h a t h e l p t h e c i t y o f C a r l s b a d b e c o m e m o r e re s i l i e n t t o in c r e a s e d e x p o s u r e t o c l i m a t e h a z a r d s . Th e v u l n e r a b i l i t y sc o r e i s a c o m b i n a t i o n o f t h e i m p a c t an d a d a p t i v e c a p a c i t y s c o r e . In th e Vu l n e r a b i l i t y A n a l y s i s se c t i o n t h e im p a c t a n d a d a p t i v e c a p a c i t y sc o r e s a r e d e v e l o p e d u s i n g a q u a l i t a t i v e m e t h o d o l o g y o u t l i n e d i n th e C a l A P G , a s s e e n i n Ta b l e 1 an d Ta b l e 2.Im p a c t a n d a d a p t i v e ca p a c i t y s c o r e s fo r e a c h c l i m a t e h a z a r d ar e i d e n t i f i e d f o r e a c h se n s i t i v i t y . A c o m p l e t e l i s t o f t he p o p u l a t i o n g r o u p s a n d a s s e t ca t e g o r i e s w i t h h i g h -vu l n e r a b i l i t y s c o r e s i s p r o v i d e d b e l o w a l o n g wi t h t h e f o l l o w i n g s u m m a r y p o i n t s . ▪ Al l se n s i t i v e p o p u l a t i o n g r o u p s i d e n t i f i e d a r e h i g h l y v u l n e r a b l e to e x t r e m e h e a t , w i t h m a n y p o p u l a t i o n g r o u p s a l s o v u l n e r a b le to a i r q u a l i t y , wi l d f i r e s , f l o o d i n g , a n d s e a l e v e l r i s e . ▪ Na t u r a l r e s o u r c e s a r e h i g h l y v u l n e r a b l e t o e x t r e m e h e a t , dr o u g h t , w i l d f i r e , fl o o d i n g , a n d s e a l e v e l r i s e . V u l n e r a b i l i t y f o r na t u r a l r e s o u r c e s i s f o c u s e d o n h a b i t a t c o n v e r s i o n s a n d da m a g e , m o r t a l i ty , a n d s c a r c i t y o f r e s o u r c e s f o r p l a n t s a n d wi l d l i f e . ▪ Bu i l d i n g s a n d f a c i l i t i e s i n t h e Cit y ar e h i g h l y v u l n e r a b l e t o se a le v e l r i s e . B u i l d i n g s a n d f a c i l i t i e s l o c a t e d i n in u n d a t i o n zo n e s a r e at r i s k o f s t r u c t u r a l d a m a g e f r o m se a l e v e l r i s e . ▪ In f r a s t r u c t u r e a n d c r i t i c a l f a c i l i t i e s a r e h i g h l y v u l n e r a b l e t o ex t r e m e h e a t , f l o o d i n g , a i r q u a l i t y , a n d s e a l e v e l r i s e . Se v e r a l fa c i l i t i e s a r e i n th e w i l d f i r e h a z a r d s e v e r i t y zo n e s o f C a r l s b a d . Th e s e b u i l d i n g s a n d f a c i l i t i e s a r e a t r i s k o f s t r u c t u r a l d a m a ge fr o m w i l d f i r e . I n f r a s t r u c t u r e a n d d e p e n d e n t p o p u l a t i o n s ex p e r i e n c e a d d i t i o n a l c a s c a d i n g i m p a c t s a r o u n d p o w e r o u t a g e s fr o m d o w n e d u t i l i t y l i n e s , p o w e r s a f e t y s h u t o f f s a n d g r i d ov e r l o a d . A l l f o r m s o f p o w e r o u t a g e s c a n a f f e c t h o w c r i t i c a l se r v i c e s a r e a b l e t o p e r f o r m t h e i r n e e d e d f u n c t i o n s d u r i n g a ha z a r d . May 12, 2026 Item #10 Page 257 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 52 Cl i m a t e H a z a r d Im p a c t S c o r e Ad a p t i v e C a p a c i t y S c o r e Vu l n e r a b i l i t y S c o r e Vu l n e r a b l e P o p u l a t i o n s Ex t r e m e H e a t Hi g h Me d i u m 4-Hi g h Dr o u g h t Hi g h Me d i u m 4-Hi g h Wi l d f i r e Hi g h Me d i u m 4-Hi g h Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Me d i u m Lo w 4-Hi g h Ai r Q u a l i t y Hi g h Lo w 5-Hi g h Se a L e v e l R i s e Hi g h Me d i u m 4-Hi g h Na t u r a l an d R e c r e a t i o n a l Re s o u r c e s Ex t r e m e H e a t / W a r m N i g h t s Hi g h Lo w 5-Hi g h Dr o u g h t Hi g h Lo w 5-Hi g h Wi l d f i r e Hi g h Me d i u m 4-Hi g h Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Hi g h Me d i u m 4-Hi g h Ai r Q u a l i t y Me d i u m Lo w 4-Hi g h Se a L e v e l R i s e Hi g h Me d i u m 4-Hi g h Bu i l d i n g s a n d F a c i l i t i e s Ex t r e m e H e a t / W a r m N i g h t s Me d i u m Lo w 4-Hi g h Se a L e v e l R i s e Me d i u m Lo w 4-Hi g h In f r a s t r u c t u r e a n d C r i t i c a l F a c i l i t i e s Ex t r e m e H e a t Hi g h Lo w 5-Hi g h Dr o u g h t Hi g h Me d i u m 4-Hi g h Ri v e r i n e a n d S t o r m w a t e r F l o o d i n g Hi g h Lo w 5-Hi g h Ai r Q u a l i t y Hi g h Lo w 5-Hi g h Se a L e v e l R i s e Me d i u m Lo w 4-Hi g h May 12, 2026 Item #10 Page 258 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Co n c l u s i o n Pu b l i c S a f e t y E l e m e n t U p d a t e 53 Th e C a r l s b a d Pu b l i c Sa f e t y E l e m e n t w i l l i n c l u d e p o l i c i e s a n d pr o g r a m s t o in c r e a s e t h e r e s i l i e n c e o f th e p o p u l a t i o n g r o u p s a n d as s e t c a t e g o r i e s w i t h t h e h i g h e s t v u l n e r a b i l i t y to c l i m a t e c h a n g e , a s pr e s e n t e d i n t h i s r e p o r t . May 12, 2026 Item #10 Page 259 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 54 7 Re f e r e n c e s As s o c i a t i o n o f P u b l i c & L a n d -Gr a n t U n i v e r s i t i e s . N . d . H o w d o e s a co l l e g e d e g r e e i m p r o v e g r a d u a t e s ’ e m p l o y m e n t a n d ea r n i n g s p o t e n t i a l ? h t t p s : / / w w w . a p l u . o r g / o u r -wo r k / 5 - ar c h i v e d -pr o j e c t s / c o l l e g e -co s t s -tu i t i o n -an d -fi n a n c i a l - ai d / p u b l i c u v a l u e s/ p u b l i c u v a l u e s - re s o u r c e s / q 3 / e m p l o y m e n t -an d -ea r n i n g s . p d f Ba i r d , R a c h e l . 2 0 0 8 . T h e I m p a c t o f C l i m a t e C h a n g e o n M i n o r i t i e s an d I n d i g e n o u s P e o p l e . ht t p s : / / m i n o r i t y r i g h t s . o r g / w p - co n t e n t / u p l o a d s / o l d -si t e -do w n l o a d s / d o w n l o a d -52 4 -Th e - Im p a c t -of -Cl i m a t e -Ch a n g e -on -Mi n o r i t i e s -an d -In d i g e n o u s - Pe o p l e s . p d f . A c c e s s e d A p r i l 2 0 2 2 Be l l , C . , J . D i T o m a s o , a n d M . B r o o k s . I n v a s i v e P l a n t s a n d W i l d f i r e s i n So u t h e r n C a l i f o r n i a . ht t p s : / / u c a n r . e d u / s i t e s / S A F E L a n d s c a p e s / F i r e _ i n _ S o u t h e r n _ Ca l i f o r n i a _ E c o s y s t e m s / Bu r k e t t , V . an d J . K u s l e r . 2 0 0 0 . C l i m a t e c h a n g e : P o t e n t i a l i m p a c t s an d i n t e r a c t i o n s i n w e t l a n d s o f t h e U n i t e d S t a t e s . J o u r n a l o f th e A m e r i c a n W a t e r R e s o u r c e s A s s o c i a t i o n 3 6 ( 2 ) : 3 1 3 -32 0 Ca r l s b a d C h a m b e r o f C o m m e r c e . 2 0 2 2 . C o o l Z o n e s P r o g r a m . C i t y o f Ca r l s b a d , C A . ht t p s : / / c a r l s b a d . o r g / B e a t -th e -su m m e r -he a t - in -Ca r l s b a d s -Co o l -Zo n e s / Ca r l s b a d C h a m b e r o f C o m m e r c e . 2 0 2 2 . Re a d y C a r l s b a d B u s i n e s s Al l i a n c e P r o g r a m . ht t p s : / / r e a d y c a r l s b a d . o r g / Ca l i f o r n i a D e p a r t m e n t o f C o n s e r v a t i o n ( C D O C ) . 2 0 2 1 . C G S M a p Sh e e t 5 8 : D e e p -Se a t e d L a n d s l i d e S u s c e p t i b i l i t y . ht t p s : / / w w w . a r c g i s . c o m / h o m e / i t e m . h t m l ? i d = 3 c d c 7 4 4 b e c 6 b4 5 c 2 8 2 0 6 e 4 7 2 e 8 a d 0 f 8 9 # Ca l i f o r n i a D e p a r t m e n t o f F i n a n c e ( C a l DO F ) . 2 0 2 2 . P o p u l a t i o n Es t i m a t e s f o r C i t i e s , C o u n t i e s , a n d t h e S t a t e -Ja n u r a r y 1 , 20 2 1 a n d 2 0 2 2 . A v a i l a b l e : ht t p s : / / v i e w . o f f i c e a p p s . l i v e . c o m / o p / v i e w . a s p x ? s r c = h t t p s % 3 A% 2 F % 2 F d o f . c a . g o v % 2 F w p - co n t e n t % 2 F u p l o a d s % 2 F F o r e c a s t i n g % 2 F D e m o g r a p h i c s % 2 F D oc u m e n t s % 2 F E - 1_ 2 0 2 2 _ I n t e r n e t V e r s i o n . x l s x & w d O r i g i n = B R O W S E L I N K Ca l i f o r n i a D e p a r t m e n t o f P u b l i c H e a l t h ( C D P H ) . 2 0 1 4 . A v e r a g e D a i l y Ma x i m u m O z o n e C o n c e n t r a t i o n . ht t p s : / / w w w . c d p h . c a . go v / P r o g r a m s / O H E / C D P H % 2 0 D o c u m en t % 2 0 L i b r a r y / C H V I s / B R A C E _ O z o n e _ 8 0 1 _ N a r r a t i v e . p d f Ca l i f o r n i a D e p a r t m e n t o f P u b l i c H e a l t h (C D P H ) . 20 1 7 . Cl i m a t e Ch a n g e a n d H e a l t h P r o f i l e R e p o r t S a n D i e g o C o u n t y . ht t p s : / / w w w . c d p h . c a . g o v / P r o g r a ms / O H E / C D P H % 2 0 D o c u m en t % 2 0 L i b r a r y / C H P R s / C H P R 0 7 3 S a n D i e g o _ C o u n t y 2 -23 - 17 . p d f Ca l i f o r n i a D e p a r t m e n t o f P u b l i c H e a l t h (C D P H ) . 20 2 0 . C l i m a t e Ch a n g e a n d H e a l t h V u l n e r a b i l i t y I n d i c a t o r s f o r C a l i f o r n i a . ht t p s : / / w w w . c d p h . c a . g o v / P r o g r a m s / O H E / P a g e s / C C -He a l t h - Vu l n e r a b i l i t y -In d i c a t o r s . a s p x Ca l i f o r n i a E n e r g y C o m m i s s i o n ( C E C ) . C a l -Ad a p t L o c a l C l i m a t e Ch a n g e S n a p s h o t f o r Ca r l s b a d . 20 2 1 . ht t p s : / / c a l - ad a p t . o r g / t o o l s / l o c a l -cl i m a t e -ch a n g e -sn a p s h o t / Ca l i f o r n i a E n e r g y C o m m i s s i o n ( C E C ) . 2 0 2 1 . E x t r e m e H e a t D a y s & Wa r m N i g h t s . ht t p s : / / c a l -ad a p t . o r g / t o o l s / e x t r e m e -he a t / May 12, 2026 Item #10 Page 260 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Re f e r e n c e s Pu b l i c S a f e t y E l e m e n t U p d a t e 55 Ca l i f o r n i a O f f i c e o f E m e r g e n c y S e r v i c e s (C a l O E S ) . 2 0 1 8 . C a l i f o r n i a St a t e H a z a r d M i t i g a t i o n P l a n . ht t p s : / / w w w . c a l o e s . c a . g o v / c a l -oe s -di v i s i o n s / h a z a r d - mi t i g a t i o n / h a z a r d -mi t i g a t i o n -pl a n n i n g / s t a t e -ha z a r d - mi t i g a t i o n -pl a n Ca r l s b a d M u n i c i p a l W a t e r D i s t r i c t . ( 2 0 2 0 ) . Ur b a n W a t e r Ma n a g e m e n t P l a n . Ca r l s b a d F i r e D e p a r t m e n t . ( n . d . ) . Fi r e P r e v e n t i o n . C i t y o f C a r l s b a d , CA . R e t r i e v e d M a y 2 0 , 2 0 2 2 , f r o m ht t p s : / / w w w . c a r l s b a d c a . g o v / d e p a r t m e n t s / f i r e / f i r e - pr e v e n t i o n Ci t y o f C a r l s b a d , C A . ( n . d . ) . Ca r l s b a d C E R T . C i t y o f C a r l s b a d , C A . Re t r i e v e d M a y 2 0 , 2 0 2 2 , f r om ht t p s : / / w w w . c a r l s b a d c a . g o v / d e p a r t m e n t s / e m e r g e n c y - se r v i c e s / c e r t Ci t y o f C a r l s b a d , C A . ( n . d . ) . Em e r g e n c y O p e r a t i o n s C e n t e r . C i t y o f Ca r l s b a d , C A . R e t r i e v e d M a y 2 0 , 2 0 2 2 , f r o m ht t p s : / / w w w . c a r l s b a d c a . g o v / d e p a r t m e n t s / e m e r g e n c y - se r v i c e s / e m e r g e n c y -op s -ce n t e r Ci t y o f C a r l s b a d . ( n . d . ) . Ha z a r d R e d u c t i o n P r o g r a m . C i t y o f C a r l s b a d , CA . R e t r i e v e d M a y 2 0 , 2 0 2 2 , f r o m ht t p s : / / w w w . c a r l s b a d c a . g o v / d e p a r t m e n t s / f i r e / f i r e - pr e v e n t i o n / h a z a r d -re d u c t i o n -pr o g r a m Ci t y o f C a r l s b a d . ( n . d . ) Yo u A r e N o t A l o n e P r o g r a m . Ci t y o f C a r l s b ad , CA . ht t p s : / / w w w . c a r l s b a d c a . g o v / d e p a r t m e n t s / p o l i c e / s e r v i c e s / y ou -ar e -no t -al o n e Ci t y o f C a r l s b a d . ( 2 0 2 1 ) . Em e r g e n c y O p e r a t i o n s P l a n . Ci t y o f C a r l s b a d . 2 0 0 4 . H a b i t a t M a n a g e m e n t P l a n f o r N a t u r a l Co m m u n i t i e s i n t h e C i t y o f C a r l s b a d . ht t p s : / / w w w . s a n d a g . o r g / u p l o a d s / p u b l i c a t i o n i d / p u b l i c a t i o n i d_ 1 4 9 _ 5 7 9 . p d f Ci t y o f C a r l s b a d . Se p t e m b e r 2 0 1 5 . Ca r l s b a d G e n e r a l P l a n . ht t p s : / / w w w . c a r l s b a d c a . g o v / d e p a r t m e n t s / c o m m u n i t y - de v e l o p m e n t / p l a n n i n g/ g e n e r a l -pl a n Ci t y o f C a r l s b a d . 2 0 1 7 . S e a L e v e l R i s e V u l n e r a b i l i t y A s s e s s m e n t . ht t p s : / / c a r l s b a d c a . p r o d . g o v a c c e s s . o r g / h o m e / s h o w d o c u m e nt ? i d = 5 7 9 5 Ci t y o f C a r l s b a d . 2 0 1 9 . Ci t y o f C a r l s b a d L o c a l C o a s t a l P r o g r a m L a n d Us e P l a n . ht t p s : / / w w w . c a r l s b a d c a . g o v / h o m e / s h o w p u b l i s h e d d o c u m e nt / 9 7 7 6 / 6 3 7 8 5 4 6 2 2 1 2 0 3 7 0 0 0 0 Ci t y o f V i s t a . A u g u s t 2 0 0 8 . Ag u a H e d i o n d a W a t e r s h e d M a n a g e m e n t Pl a n . ht t p s : / / n r s . u c s d . e d u / _ f i l e s / a g u a -he d i o n d a -wa t e r s h e d - ma n a g e m e n t -pl a n . p d f Co l l i n s M . , M . S u t h e r l a n d , L . B o u w e r , S . -M. C h e o n g , T . F r öli c h e r , H . Ja c o t D e s C o m b e s , M . K o l l R o x y , I . L o s a d a , K . M c I n n e s , B . Ra t t e r , E . R i v e r a -Ar r i a g a , R . D . S u s a n t o , D . S w i n g e d o u w , a n d L. T i b i g , 2 0 1 9 : E x t r e m e s , A b r u p t C h a n g e s a n d M a n a g i n g Ri s k . I n : I P C C S p e c i a l R e p o r t o n t h e O c e a n a n d C r y o s p h e r e in a C h a n g i n g C l i m a t e [ H . -O. P ört n e r , D . C . R o b e r t s , V . Ma s s o n -De l m ot t e , P . Z h a i , M . T i g n o r , E . P o l o c z a n s k a , K . Mi n t e n b e c k , A . A l e g r ía, M . N i c o l a i , A . O k e m , J . P e t z o l d , B . Ra m a , N . M . W e y e r ( e d s . ) ] . I n p r e s s . Co o l e y , H e a t h e r , E l i M o o r e , M a t t h e w H e b e r g e r , a n d L u c y A l l e n . So c i a l V u l n e r a b i l i t y t o C l i m a t e C h a n g e i n C a l i f o r n i a . 2 0 1 2 . ht t p s : / / p a c i n s t . o r g / w p -co n t e n t / u p l o a d s / 2 0 1 2 / 0 7 / s o c i a l - vu l n e r a b i l i t y -cl i m a t e -ch a n g e -ca . p d f . May 12, 2026 Item #10 Page 261 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 56 Co o p , e t . A l . 2 0 2 0 . Wi l d f i r e -Dr i v e n F o r e s t C o n v e r s i o n i n W e s t e r n No r t h A m e r i c a n L a n d s c a p e s B i o S c i e n c e 7 0 : 6 5 9 –67 3 . Pu b l i s h e d b y O x f o r d U n i v e r s i t y P r e s s o n b e ha l f o f t h e Am e r i c a n I n s t i t u t e o f B i o l o g i c a l S c i e n c e s . do i : 1 0 . 1 0 9 3 / b i o s c i / b i a a 0 6 1 Co u n t y o f S a n D i e g o . ( 2 0 1 9 ) . Re s i l i e n c e R e v i e w R e p o r t : W i l d l a n d Fi r e . Co u n t y o f S a n D i e g o . ( n . d . ) Th e C o u n t y R e s i l i e n c e P r o g r a m . Co u n t y o f S a n D i e g o . ( 2 0 1 7 ) . Mu l t i -Ju r i s d i c t i on a l H a z a r d M i t i g a t i o n Pl a n . Co u n t y o f S a n D i e g o . ( 2 0 2 1 ) . Ex c e s s i v e H e a t R e s p o n s e P l a n . Co u n t y o f S a n D i e g o , H e a l t h & H u m a n S e r v i c e s . ( n . d . ) . Co o l Z o n e s . Ag i n g & I n d e p e n d e n c e S e r v i c e s . R e t r i e v e d M a y 2 0 , 2 0 2 2 , fr o m ht t p s : / / w w w . s a n d i e g o c o u n t y . g o v / h h s a / p r o g r a ms / a i s / c o o l _ zo n e s / Co u n t y o f S a n D i e g o . ( n . d . ) . Al e r t S a n D i e g o . R e a d y S a n D i e g o . Re t r i e v e d M a y 2 0 , 2 0 2 2 , f r o m ht t p s : / / w w w . r e a d y s a n d i e g o . o r g / a l e r t s a n d i e g o / Da l e , V i r g i n i a H . F i r s t p u b l i s h e d : 0 1 A u g u s t 1 9 9 7 . P h o t o s y n t h e t i c a n d st o m a t a l r e s p o n s e s t o h i g h t e m p e r a t u r e a n d l i g h t i n t w o oa k s a t t h e w e s t e r n l i m i t o f t h e i r r a n g e E R I K HA M E R L Y N C K 1 , 2 a n d A L A N K . K N A P P 1 1 D i v i s i o n o f B i o l o g y , Ka n s a s S t a t e U n i v e r s i t y , A c k e rt H a l l , M a n h a t t a n , K S 6 6 5 0 6 - 49 0 1 , U S A 2 P r e s e n t a d d r e s s : D e p a r t m e n t o f B i o l o g i c a l Sc i e n c e s , U n i v e r s i t y o f N e v a d a L a s V e g a s , 4 5 0 5 M a r y l a n d Pa r k w a y , B o x 4 5 4 0 0 4 , L a s V e g a s , N V 8 9 1 5 4 -40 0 4 , U S A Re c e i v e d M a y 2 5 , 1 9 9 5 ht t p s : / / d o i . o r g / 1 0 . 1 8 9 0 / 1 0 5 1 0 7 6 1 ( 1 9 9 7 ) 0 0 7 [ 0 7 5 3 : T R B L U C ] 2. 0 . C O ; 2 EP A . 2 0 2 2 . C l i m a t e C h a n g e a n d H a r m f u l A l g a e B l o o m s . ht t p s : / / w w w . e p a . g o v / n u t r i e n t p o l l u t i o n / c l i m a t e -ch a n g e - an d -ha r m f u l -al g al - bl o o m s # : ~ : t e x t = E x t r e m e % 2 0 s t o r m s % 2 0 f o l l o w e d % 2 0 b y % 2 0 pe r i o d s , w a t e r b o d i e s % 2 C % 2 0 f e e d i n g % 2 0 m o r e % 2 0 a l g a l % 2 0 bl o o m s . Fe i n s t e i n L a u r a , P h u r i s a m b a n R a p i c h a n , F o r d A m a n d a , C h r i s t i n e Ty l e r , a n d C r a w f o r d A y a n a . 2 0 1 7 . D r o u g h t a n d E q u i t y i n Ca l i f o r n i a . ht t p s : / / p a c i n s t . o r g / w p - co n te n t / u p l o a d s / 2 0 1 7 / 0 1 / P I _ D r o u g h t A n d E q u i t y I n C A _ J a n _ 2 01 7 _ E x e c u t i v e _ S u m m a r y . p d f Ga m b l e & B a l b u l s . 2 0 1 6 . T h e I m p a c t s o f C l i m a t e C h a n g e o n H u m a n He a l t h i n t h e U n i t e d S t a t e s . ht t p s : / / h e a l t h 2 0 1 6 . g l o b a l c h a n g e . g o v / l o w / C l i m a t e H e a l t h2 0 16 _ 0 9 _ P o p u l a t i o n s _ s m a l l . p d f IP C C . Th e I n t e r g o v e r n m e n t a l P a n e l o n C l i m a t e C h a n g e S i x t h As s e s s m e n t R e p o r t . 2 0 2 1 . ht t p s : / / w w w . i p c c . c h / r e p o r t / a r 6 / w g 1 / # F u l l R e p o r t In t e r g o v e r n m e n t a l P a n e l o n C l i m a t e C h a n g e . 2 0 1 2 . M a n a g i n g t h e Ri s k s o f E x t r e m e E v e n t s a n d D i s a s t e r s t o A d v a n c e C l i m a t e Ch a n g e A d a p t a t i o n , a s p e c i a l r e p o r t o f W o r k i n g G r o u p s I an d I I o f t h e I P C C , e d . C. B . <h t t p s : / / w w w . i p c c . c h / s i t e / a s s e t s / u p l o a d s / 2 0 1 8 /0 3 / S R E X _ F D_ S P M _ f i n a l -2. p d f > . Ka l a n s k y , J u l i e , D a n C a y a n , K a t e B a r b a , L a u r a W a l s h , K i m b e r l y Br o u w e r , D a n i B o u d r e a u . ( U n i v e r s i t y o f C a l i f o r n i a , S a n Di e g o ) . 2 0 1 8 . Sa n D i e g o S u m m a r y R e p o r t . Ca l i f o r n i a ’ s Fo u r t h C l i m a t e C h a n g e A s s e s s m e n t . Pu b l i c a t i o n n u m b e r : SU M -CC C A 4 -20 1 8 -00 9 Ca l i f o r n i a G o v e r n o r ’ s O f f i c e o f Em e r g e n c y S e r v i c e s , T h e ( C a l O E S ) . 2 0 2 0 . C a l i f o r n i a Ad a p t a t i o n P l a n n i n g G u i d e . May 12, 2026 Item #10 Page 262 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Re f e r e n c e s Pu b l i c S a f e t y E l e m e n t U p d a t e 57 ht t p s : / / w w w . c a l o e s . c a . g o v / H a z a r d M i t i g a t i o n S i t e / D o c u m e n ts / C A -Ad a p t a t i o n -Pl a n n i n g -Gu i d e -FI N A L -Ju n e -20 2 0 - Ac c e s s i b l e . p d f Ke n n e y W L , C r a i g h e a d D H , A l e x a n d e r L M . H e a t w a v e s , a g i n g , a n d hu m a n c a r d i o v a s c ul a r h e a l t h . M e d S c i S p o r t s E x e r c . 2 0 1 4 Oc t ; 4 6 ( 1 0 ) : 1 8 9 1 -9. d o i : 1 0 . 1 2 4 9 / M S S . 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 5 . PM I D : 2 4 5 9 8 6 9 6 ; P M C I D : P M C 4 1 5 5 0 3 2 . Ma c l e a n , M . D . a n d R . J . W i l s o n . 2 0 1 1 . R e c e n t e c o l o g i c a l r e s p o n s e s t o cl i m a t e c h a n g e s u p p o r t p r e d i c t i o n s o f h i g h e x t i n c t i o n r i s k . Pr o c e e d i n g s o f t h e N a t i o n a l A c a d e m y o f S c i e n c e s . P u b l i s h e d on l i n e b e f o r e p r i n t J u l y 1 1 , 2 0 1 1 . M a g n e s s , D . R , a n d J . M . Mo r t o n . No r t h S a n D i e g o W a t e r R e u s e C o a l i t i o n (N S D W R C ) . 2 0 2 0 . Re g i o n a l Re c y c l e d W a t e r P r o j e c t O v e r v i e w . A v a i l a b l e : ht t p s : / / n s d w r c . o r g / h o m e . ht m l Th e N a t i o n a l A e r o n a u t i c s a n d S p a c e A d m i n i s t r a t i o n ( N A S A ) . 2 0 2 2 . Th e E f f e c t s o f C l i m a t e C h a n g e . A v a i l a b l e : ht t p s : / / c l i m a t e . n a s a . g o v / e f f e c t s / . Ol i v e h a i n M u n i c i p a l W a t e r D i s t r i c t . ( 2 0 1 5 ) . Po t a b l e W a t e r a n d Re c y c l e d W a t e r M a s t e r P l a n . Ol i v e h a i n M u n i c i pa l W a t e r D i s t r i c t . ( 2 0 2 0 ) . Ur b a n W a t e r Ma n a g e m e n t P l a n . Pr o c e e d i n g s o f t h e N a t i o n a l A c a d e m y o f S c i e n c e s o f t h e U n i t e d St a t e s o f A m e r i c a ( P N A S ) . 2 0 2 1 . S p a t i a l v a r i a t i o n i n t h e j o i n t ef f e c t o f e x t r e m e h e a t e v e n t s a n d o z o n e o n r e s p i r a t o r y ho s p i t a l i z a t i o n s i n Ca l i f o r n i a . ht t p s : / / d o i . o r g / 1 0 . 1 0 7 3 / p n a s . 2 0 2 3 0 7 8 1 1 8 Pu b l i c H e a l t h A l l i a n c e o f S o u t h e r n C a l i f o r n i a ( P H A S o C a l ) . T h e Ca l i f o r n i a H e a l t h y P l a c e s I n d e x ( H P I ) . 2 0 2 2 . ht t p s : / / m a p . h e a l t h y p l a c e s i n d e x . o r g / Ra m i n & S v o b o d a . 2 0 0 9 . H e a l t h o f t h e H o m e l e s s a n d C l i m a t e Ch a n g e . ht t p s : / / w w w . n c b i . n l m . n i h . g o v / p m c / a r t i c l e s / P M C 2 7 0 4 2 7 6 / Sa n D i e g o C o u n t y W a t e r A u t h o r i t y . ( n . d . ) Th e C a r l s b a d D e s a l i n a t i o n Pr o j e c t . Sa n D i e g o I n t e g r a t e d W a t e r M a n a g e m e n t . ( 2 0 1 3 ) . In t e g ra t e d F l o o d Ma n a g e m e n t P l a n . Sa n D i e g o G a s & E l e c t r i c . ( 2 0 2 2 ) . Wi l d f i r e M i t i g a t i o n P l a n . Sa n D i e g o G a s & E l e c t r i c . ( n . d . ) . Co m m i t m e n t t o s u p p o r t i n g ac c e s s i b i l i t y . S a n D i e g o G a s & E l e c t r i c . R e t r i e v e d M a y 2 0 , 20 2 2 , f r o m h t t p s : / / w w w . s d g e . c o m / a c c e s s -an d -fu n c t io n a l - ne e d s -af n Sa n D i e g o G a s & E l e c t r i c . ( n . d . ) . Me d i c a l B a s e l i n e A l l o w a n c e Pr o g r a m O v e r v i e w . R e t r i e v e d M a y 2 0 , 2 0 2 2 , f r o m ht t p s : / / w w w . s d g e . c o m / r e s i d e n t i a l / p a y -bi l l / g e t -pa y m e n t - bi l l -as s i s t a n c e / h e a l t h -se n i o r -su p p o r t / q u a l i f i y i n g -ba s e d - me d i c a l -ne e d Se n e v i r at n e , S . I . , E t . a l . 2 0 1 2 . “ C h a n g e s i n c l i m a t e e x t r e m e s a n d t h e i r im p a c t s o n t h e n a t u r a l p h y s i c a l e n v i r o n m e n t , ” I n : M a n a g i n g th e R i s k s o f E x t r e m e E v e n t s a n d D i s a s t e r s t o A d v a n c e Cl i m a t e C h a n g e A d a p t a t i o n A S p e c i a l R e p o r t o f W o r k i n g Gr o u p s I a n d I I o f t h e I n t er g o v e r n m e n t a l P a n e l o n C l i m a t e Ch a n g e ( I P C C ) . C a m b r i d g e U n i v e r s i t y P r e s s , C a m b r i d g e , U K , an d N e w Y o r k , N Y , U S A , p p . 1 0 9 -23 0 . 2 0 1 2 ht t p s : / / w w w . i p c c . c h / s i t e / a s s e t s / u p l o a d s / 20 1 8 / 0 3 / S R E X - Ch a p 3 _ F I N A L -1. p d f May 12, 2026 Item #10 Page 263 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Ci t y o f Ca r l s b a d Cl i m a t e C h a n g e V u l n e r a b i l i t y A s s e s s m e n t 58 So u t h e r n C a l i f o r n i a A s s o c i a t i o n o f G o v e r n m e n t s ( S C A G ) . 2 0 2 0 . So u t h e r n C a l i f o r n i a A d a p t at i o n P l a n n i n g G u i d e . ht t p s : / / s c a g . c a . g o v / s i t e s / m a i n / f i l e s / f i l e - at t a c h m e n t s / s o c a l a d a p t a t i o n p l a n n i n g g u i d e _ o c t 2 0 2 0 _ 0 . p d f So u t h e r n C a l i f or n i a E d i s o n ( S C E ) . 2 0 2 1 . C r i t i c a l C a r e B a c k u p B a t t e r y Pr o g r a m . ht t p s : / / w w w . v e n c o l i b r a r y . o r g / s i t e s / d e f a u l t / f i l e s / C r i t i c a l % 2 0C a r e % 2 0 B a c k u p % 2 0 B a t t e r y % 2 0 P r o g r a m % 2 C % 2 0 7 -15 - 20 . p d f So u t h e r n C a l i f o r n i a E d i s o n ( S C E ) . 2 0 2 2 . M e d i c a l Ba s e l i n e Pr o g r a m . ht t p s : / / w w w . s c e . c o m / r e s i d e n t i a l / a s s i s t a n c e / m e d i c a l - ba s e l i n e So u t h e r n C a l i f o r n i a Ed i s o n (S C E ) . 2 0 2 2 P u b l i c S a f e t y P o w e r S h u t o f f . ht t p s : / / w w w . s c e . c o m / w i l d f i r e / p s p s Ta l b o t , C . J . , B e n n e t t , E . M . , C a s s e l l , K . e t a l . T h e i m p a c t o f f l o o d i n g on a q u a t i c e c o s y s t e m s e r v i c e s . B i o g e o c h e m i s t r y 1 4 1 , 4 3 9 – 46 1 ( 2 0 1 8 ) . h t t p s : / / d o i . o r g / 1 0 . 1 0 0 7 / s 1 0 5 3 3 -01 8-04 4 9 -7 Un i f i e d S a n D i e g o C o u n t y E m e r g e n c y S e r v i c e s O r g a n i z a t i o n a n d Co u n t y o f S a n D i e g o . ( 2 0 1 8 ) . Em e r g e n c y O p e r a t i o n s P l a n . U. S . F i s h & W i l d l i f e S e r v i c e . 2 0 0 5 . Re c o v e r y P l a n f o r V e r n a l P o o l Ec o s y s t e m s o f C a l i f o r n i a a n d S o u t h e r n O r e g o n . ht t p s : / / e c o s . f w s . g o v / d o c s / r e c o v e r y _ p l a n s / 2 0 0 6 / 0 6 0 3 0 7 _ d oc s / d o c 5 3 1 . p d f US D A F o r e s t S e r v i c e R M R S -GT R -37 5 . 2 0 1 8 C h a p t e r 1 0 : E f f e c t s o f Cl i m a t e C h a n g e o n O u t d o o r R e c r e a t i o n . M i c h a e l S . H a n d , Jo r d a n W . S m i t h , D a v i d L . P e t e r s o n , N a n c y A . B r u n s w i c k , an d C a r o l P . Br o w n US G C R P , 2 0 1 8 : I m p a c t s , R i s k s , a n d A d a p t a t i o n i n t h e U n i t e d S t a t e s : Fo u r t h N a t i o n a l C l i m a t e A s s e s s m e n t , V o l u m e I I : [ R e i d m i l l e r , D. R . , C . W . A v e r y , D . R . E a s t e r l i n g , K . E . K u n k e l , K . L . M . L e w i s , T. K . M a y c o c k , a n d B . C . S t e w a r t ( e d s . ) ] . U . S . G l o b a l C h a n g e Re se a r c h P r o g r a m , W a s h i n g t o n , D C , U S A , 1 5 1 5 p p . d o i : 10 . 7 9 3 0 / N C A 4 . 2 0 1 8 . Wo o d , N . , N g , P . , J o n e s , J . M . , H e n r y K . , C . Y . , 2 0 2 1 , H a z a r d E x p o s u r e Re p o r t i n g a n d A n a l y t i c s - Co a s t a l G r o u n d w a t e r T o o l , U . S . Ge o l o g i c a l S u r v e y w e b a p p l i c a t i o n , ht t p s : / / w w w . u s g s . g o v / a p p s /h e r a / g r o u n d w a t e r T o o l . p h p May 12, 2026 Item #10 Page 264 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX F: AWWA WATER AUDIT FY2025 May 12, 2026 Item #10 Page 265 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Water Audit Report for: Audit Year: All volumes to be entered as: ACRE-FEET PER YEAR WATER SUPPLIED choose entry option: VOS Volume from Own Sources:n g n/a 0.000 Acre-ft/Yr n g n/a percent acre-ft/yr under-registration VOSEA WI Water Imported:n g 7 15,002.600 Acre-ft/Yr n g 9 5.00%volume acre-ft/yr over-registration WIEA WE Water Exported:n g n/a 0.000 Acre-ft/Yr n g n/a percent acre-ft/yr select…..WEEA 14,836.886 Acre-ft/Yr . AUTHORIZED CONSUMPTION BMAC Billed Metered:n g 9 13,933.509 Acre-ft/Yr BUAC Billed Unmetered:n g n/a 0.000 Acre-ft/Yr UMAC Unbilled Metered:n g 10 5.517 Acre-ft/Yr choose entry option: UUAC Unbilled Unmetered:n g 3 34.834 Acre-ft/Yr 0.25% default acre-ft/yr24061 Default option selected for Unbilled Unmetered, with automatic data grading of 3 13,973.860 Acre-ft/Yr WATER LOSSES 863.026 Acre-ft/Yr Apparent Losses Default option selected for Systematic Data Handling Errors, with automatic data grading of 3 choose entry option: SDHE Systematic Data Handling Errors:n g 3 34.834 Acre-ft/Yr 0.25%default acre-ft/yr CMI Customer Metering Inaccuracies:n g 7 197.917 Acre-ft/Yr 1.40% percent acre-ft/yr under-registration UC Unauthorized Consumption:n g 3 34.834 Acre-ft/Yr 0.25% default acre-ft/yr Default option selected for Unauthorized Consumption, with automatic data grading of 3 267.585 Acre-ft/Yr Real Losses 595.441 Acre-ft/Yr 863.026 Acre-ft/Yr NON-REVENUE WATER 903.377 Acre-ft/Yr SYSTEM DATA Lm Length of mains:n g 10 474.8 miles (including fire hydrant lead lengths) Nc Number of service connections:n g 10 28,238 (active and inactive) Service connection density:59 conn./mile main Yes Lp Average length of (private) customer service line:n g 10 ft (average distance between property line and meter) AOP Average Operating Pressure:n g 10 78.0 psi COST DATA CRUC Customer Retail Unit Charge:n g 7 $4.71 VPC Variable Production Cost: n g 8 $1,895.83 $/acre-ft $/yr (optional input) WATER AUDIT DATA VALIDITY TIER: go to dashboard PRIORITY AREAS FOR ATTENTION TO IMPROVE DATA VALIDITY:KEY PERFORMANCE INDICATOR TARGETS: Based on the information provided, audit reliability can be most improved by addressing the following components: OPTIONAL: If targets exist for the operational performance indicators, they can be input below: 1: Water Imported (WI)Unit Total Losses:gal/conn/day 2: Unauthorized Consumption (UC)Unit Apparent Losses:8.3 gal/conn/day 3: Systematic Data Handling Errors (SDHE)Unit Real LossesA:13.0 gal/conn/day Unit Real LossesB:gal/mile/day If entered above by user, targets will display on KPI gauges (see Dashboard) Are customer meters typically located at the curbstop/property line? AWWA Free Water Audit Software: Worksheet Carlsbad Municipal Water District 165.714 Jul 01 2024 - Jun 30 2025 Water Supplied Error Adjustments Fiscal2025 Real Losses: WATER LOSSES: Average length of customer service line has been set to zero and a data grading of 10 has been applied A weighted scale for the components of supply, consumption and water loss is included in the calculation of the Water Audit Data Validity Score *** The Water Audit Data Validity Score is in Tier IV (71-90). See Dashboard tab for additional outputs. *** $/100 cubic feet (ccf) $51,230,801 Total Annual Operating Cost go to start page NON-REVENUE WATER: If entering an Error Adjustment, select under- or over- registration 3.000 WATER SUPPLIED: AUTHORIZED CONSUMPTION: Apparent Losses: Click 'g' to determine data validity grade Click 'n' to add notes FWAS v6.0 American Water Works Association.Copyright © 2020, All Rights Reserved. To access definitions, click the input name To edit water system info: AWWA Free Water Audit Software v6.0 Worksheet 1May 12, 2026 Item #10 Page 266 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX G: DWR APPENDIX O ENERGY INTENSITY TABLES May 12, 2026 Item #10 Page 267 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Retail Potable Deliveries 1/1/2025 12/31/2025 No Units for Water Volume Extract and Divert Place into Storage Conveyance Treatment Distribution Total Utility See DWR NOTES Hydropower Net Utility AF 14,462 243 0 0 14,462 14,462 4,344 18,806 N/A 87,716 0 0 0 0 87,716 87,716 N/A 18.61 0 0 0 0 18.61 0 14.31 Quantity of Self-Generated Renewable Energy 0 kWh Data Quality (Estimate, Metered Data, Combination of Estimates and Metered Data) Metered Data Data Quality Narrative: Narrative: Volume of water entering process is derived from SDCWA invoices fo the amount of water purchased. Energy consumed is derived from SDG&E bills documenting the amount of power needed to serve CMWD equipment. CMWD water management processes which require energy are chorination equipment, pumping, and SCADA monitoring equipment. CMWD utilizes hydropower generated from the pressure difference of purchased SDCWA and CMWD opera NOTES: Volume of Water Entering Process Energy Consumed (kWh) Energy Intensity (kWh/vol. converted to MG) DWR NOTES: Total Utility:The volume of water entered in the “Total Utility” column should equal the volume of water entering the distribution system (excluding recycled water); in most cases, this is the total volume calculated in UWMP Table 4-1: 2025 Actual Total Uses for Potable and Non-Potable Water. Note if recycled water is included in your Submittal Table 4-1, you must exclude it from your volume in this table. Optional Submittal Table O-1A: Recommended Energy Reporting - SINGLE DELIVERY PRODUCT - WATER SUPPLY PROCESS APPROACH Water Delivery Product drop down list (If delivering more than one type of product recommend using Table O-1C) Only for Water Delivery Products Under the Urban Water Supplier's Operational Control Start Date of Reporting Period Water Management Process Non-Consequential Hydropower (if applicable)End Date of Reporting Period Is upstream embedded energy included in the values reported? May 12, 2026 Item #10 Page 268 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Start Date of Reporting Period 1/1/2025 End Date of Reporting Period 12/31/2025 Is upstream embedded energy in the values reported?No Units of Measure for Water AF Collection / Conveyance Treatment Discharge / Distribution Total 7,906 0 0 7,906 1,166,682 0 0 1,166,682 453 0 0 453 0 5,356 3,708 9,064 0 1,400,207 2,817,429 4,217,636 0 802 2,332 1,428 Quantity of Self-Generated Renewable Energy related to recycled water and wastewater operations 0 kWh Data Quality (drop down) Metered Data Data Quality Narrative: Narrative: NOTES: Volume of Wastewater Entering Process (volume units selected above) Wastewater Energy Consumed (kWh) Volume of Recycled Water Entering Process (volume units selected above) Recycled Water Energy Consumed (kWh) Wastewater Energy Intensity (kWh/volume converted to MG) Recycled Water Energy Intensity (kWh/volume converted to MG) Optional Submittal Table O-2: Recommended Energy Reporting - WASTEWATER AND RECYCLED WATER Only for Water Delivery Products Under the Urban Water Supplier's Operational Control Water Management Process Energy consumed is derived from SDG&E bills documenting the amount of power needed to serve City of Carlsbad wastewater equipment, and Carlsbad WRF plant. Energy is needed in recycled water and wastewater processes primarily to pump water and SCADA monitoring. In a typical year, CMWD gravity feeds recycled water from the Meadowlark WRF. However, the Meadowlark WRF has been offline for maintenance since December 2024, which has necessitated nearly 200 times more energy to be consumed by CMWD pumps in order to distribute recycled water to Mahr reservoir. Meadowlark is expected to become operational in August 2026, at which time energy consumption for recycled water distribution will resume typical, lower levels. May 12, 2026 Item #10 Page 269 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 11-1 APPENDIX H: CMWD WATER CODE TITLE 3 - ENVIRONMENT May 12, 2026 Item #10 Page 270 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Title 3 ENVIRONMENT City of Carlsbad, CA Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 271 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 CHAPTER 3.04 EMERGENCY WATER MANAGEMENT PROGRAM §3.04.010. Declaration of policy. California Water Code Section 375 et seq., permit public entities which supply water at retail to adopt and enforce a water conservation program to reduce the quantity of water used by the people therein for the purpose of conserving the water supplies of such public entity. The Board hereby establishes a comprehensive water conservation program pursuant to California Water Code Section 375 et seq., based upon the need to conserve water supplies and to avoid or minimize the effects of any future shortage. (Ord. 30 § 1, 1989; Ord. 49, 7/16/2024) §3.04.020. Findings. (Ord. 30 § 2, 1989; Ord. 49, 7/16/2024) §3.04.030. CEQA exemption. The Carlsbad Municipal Water District finds that this chapter and actions taken hereafter pursuant to this chapter are exempt from the California Environmental Quality Act as specific actions necessary to prevent or mitigate an emergency pursuant to Public Resources Code Section 21080(b)(4) and the California Environmental Quality Act Guidelines Section 15269(c). The Manager of the District is hereby authorized and directed to file a Notice of Exemption as soon as possible following adoption of the ordinance codified in this chapter. (Ord. 30 § 3, 1989; Ord. 49, 7/16/2024) A.The Board finds and determines that a water shortage could exist based upon the occurrence of one or more of the following conditions: 1.A general water supply shortage due to increased demand or limited supplies. 2.Distribution or storage facilities of San Diego County Water Authority or other agencies become inadequate. 3.A major failure of the supply, storage and distribution facilities of the Metropolitan Water District of Southern California, the San Diego County Water Authority, or of the Carlsbad Municipal Water District occurs. B.The Board also finds and determines that the conditions prevailing in the San Diego County area require that the water resources available be put to maximum beneficial use to the extent to which they are capable, and that the waste or unreasonable use, or unreasonable method of use, of water be prevented and that the conservation of such water be encouraged with a view to the maximum reasonable and beneficial use thereof in the interests of the people of the Carlsbad Municipal Water District and for the public welfare. City of Carlsbad, CA § 3.04.010 § 3.04.040 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 272 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 § 3.04.040. Application. The provisions of this chapter shall apply to all persons, customers, and property served by the Carlsbad Municipal Water District. (Ord. 30 § 4, 1989; Ord. 49, 7/16/2024) § 3.04.050. Authorization. The Carlsbad Municipal Water District's General Manager, or a designated representative, is hereby authorized and directed to implement the provisions of this chapter. (Ord. 30 § 5, 1989; Ord. 49, 7/16/2024) § 3.04.060. Water conservation stages. No customer of the Carlsbad Municipal Water District shall knowingly make, cause, use, or permit the use of water supplied by the District for residential, commercial, industrial, agricultural, governmental, or any other purpose in a manner contrary to any provision of this chapter, in an amount in excess of the amounts authorized by this chapter, or during any period of time other than the periods of time specified in this chapter. At no time shall water be wasted or used unreasonably. The following stages shall take effect upon declaration as herein provided: A. Stage 1—Voluntary Compliance—Water Watch. Stage 1 applies during periods when the possibility exists that the Carlsbad Municipal Water District will not be able to meet all of the demands of its customers. During Stage 1, all elements of Stage 2 shall apply on a voluntary basis only. B. Stage 2—Mandatory Compliance—Water Alert. Stage 2 applies during periods when the probability exists that the Carlsbad Municipal water District will not be able to meet all of the water demands of its customers. During Stage 2, the following water conservation measures shall apply except when reclaimed water is used: 1. Lawn watering and landscape irrigation, including construction meter irrigation, is permitted only between the hours of three p.m. and nine a.m. the following morning, except when reclaimed water is used. Watering is permitted at any time if a hand-held hose equipped with a positive shut-off nozzle is used, a hand-held faucet-filled bucket of five gallons or less is used, or a drip irrigation system is used. 2. Agricultural users and commercial nurseries as defined in the Metropolitan Water District Code are exempt from Stage 2 irrigation restrictions, but will be required to curtail all nonessential water use. The watering of livestock and irrigation of propagation beds are permitted at any time. 3. Washing of autos, trucks, trailers, boats, airplanes, and other types of mobile equipment is prohibited except on designated irrigation days between the hours of six p.m. and six a.m. the following morning, except when reclaimed City of Carlsbad, CA § 3.04.040 § 3.04.060 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 273 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 water is used. Such washing, when allowed, shall be done with a hand-held bucket, or a hand-held hose equipped with a positive shut-off nozzle for quick rinses. Washing is permitted at any time on the immediate premises of a commercial car wash. Further, such washings are exempted from these regulations where the health, safety, and welfare of the public is contingent upon frequent vehicle cleaning such as garbage trucks and vehicles used to transport food and perishables. 4. Filling or refilling swimming pools, spas, ponds, and artificial lakes is permitted only on designated irrigation days between the hours of six p.m. and six a.m. the following morning, unless reclaimed water is available and its use permitted. 5. Watering golf courses, parks, school grounds, and recreational fields is permitted only between the hours of six p.m. and six a.m. the following morning, except golf course greens, unless reclaimed water is available and its use permitted. 6. The use of water from fire hydrants shall be limited to fire fighting and related activities, for construction activities, or other activities necessary to maintain the health, safety, and welfare of the public. 7. Water shall not be used to wash down sidewalks, driveways, parking areas, tennis courts, patios, or other paved areas, except to alleviate immediate fire or sanitation hazards, unless reclaimed water is available and its use permitted. 8. Restaurants shall not serve water to their customers except when specifically requested. 9. The operation of any ornamental fountain or similar structure is prohibited unless reclaimed water is available and its use permitted. C. Stage 3—Mandatory Compliance—Water Warning. Stage 3 applies during periods when the Carlsbad Municipal Water District will not be able to meet all of the water demands of its customers. During Stage 3, the following water conservation measures shall apply except when reclaimed water is used: 1. Lawn watering and landscape irrigation, including construction meter irrigation, is permitted only on designated irrigation days and only between the hours of ten p.m. and six a.m. the following morning, except when reclaimed water is used. A "designated irrigation day" is determined by the last digit in the street address. Properties with addresses ending in an even number may use water on even-numbered days and addresses ending in an odd number may use water on odd-numbered days. 2. Agricultural users and commercial nurseries shall use water only between the hours of six p.m. and six a.m. the following morning, unless reclaimed water is available and permitted. The watering of livestock and irrigation of propagation beds are permitted at any time. City of Carlsbad, CA § 3.04.060 § 3.04.060 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 274 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 3. Washing of autos, trucks, trailers, boats, airplanes, and other types of mobile equipment is prohibited, except when reclaimed water is used. Washing is permitted at any time on the immediate premises of a commercial car wash. The use of water by all types of commercial car washes not using partially reclaimed or recycled water shall be reduced in volume by twenty percent. Further, such washings are exempted from these regulations where the health, safety, and welfare of the public is contingent upon frequent vehicle cleaning such as garbage trucks and vehicles used to transport food and perishables. 4. Filling or refilling swimming pools, spas, ponds, and artificial lakes is permitted only on designated irrigation days between the hours of ten p.m. and six a.m. the following morning, unless reclaimed water is available and permitted. 5. Watering golf courses, parks, school grounds, and recreational fields is permitted only between the hours of ten p.m. and six a.m. the following morning, except golf course greens, unless reclaimed water is available and permitted. 6. The use of water from fire hydrants shall be limited to fire fighting and related activities, or other activities necessary to maintain the health, safety, and welfare of the public. 7. Water shall not be used to wash down sidewalks, driveways, parking areas, tennis courts, patios, or other paved areas, except to alleviate immediate fire or sanitation hazards, unless reclaimed water is available and permitted. 8. Restaurants shall not serve water to their customers except when specifically requested. 9. The operation of any ornamental fountain or similar structure is prohibited, unless reclaimed water is available and permitted. 10. New construction meters or permits for unmetered service will not be issued. Construction water shall not be used for earth work or road construction purposes, unless reclaimed water is available and permitted. D. Stage 4—Mandatory Compliance—Water Emergency. Stage 4 applies when a major failure of any supply or distribution facility, whether temporary or permanent, occurs in the water distribution system of the State Water Project, Metropolitan Water District, San Diego County Water Authority, or Carlsbad Municipal Water District facilities. During Stage 4, the following water conservation measures shall apply except when reclaimed water is used: 1. All outdoor irrigation of vegetation is prohibited, unless reclaimed water is available and permitted. 2. Use of water for agricultural or commercial nursery purposes, except for livestock watering, is prohibited, unless reclaimed water is available and permitted. City of Carlsbad, CA § 3.04.060 § 3.04.060 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 275 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 30 § 6, 1989; Ord. 34 § 1, 1990; Ord. 49, 7/16/2024) § 3.04.070. Use of reclaimed water for greenbelt purposes. 3. Washing of autos, trucks, trailers, boats, airplanes, and other types of mobile equipment is prohibited, except when reclaimed water is used. Washing is permitted at any time upon the immediate premises of a commercial car wash. The use of water by all types of commercial car washes shall be reduced in volume by fifty percent. Further, such washings are exempted from these regulations where the health, safety, and welfare of the public is contingent upon frequent vehicle cleaning such as garbage trucks and vehicles used to transport food and perishables. 4. Filling, refilling or adding of water to swimming pools, spas, ponds, and artificial lakes is prohibited, unless reclaimed water is available and permitted. 5. Watering of all golf course areas, except greens, is prohibited, except when reclaimed water is used. Watering of parks, school grounds, and recreation fields is prohibited (with the exception of plant materials classified to be rare, exceptionally valuable, or essential to the well being of rare animals), unless reclaimed water is available and permitted. 6. The use of water from fire hydrants shall be limited to fire fighting or related activities necessary to maintain the health, safety and welfare of the public. 7. Water shall not be used to wash down sidewalks, driveways, parking areas, tennis courts, patios, or other paved areas, except to alleviate immediate fire or sanitation hazards, unless reclaimed water is available and permitted. 8. Restaurants shall not serve water to their customers except when specifically requested. 9. The operation of any ornamental fountain or similar structure is prohibited, unless reclaimed water is available and permitted. 10. New construction meters or permits for unmetered service will not be issued. Construction water shall not be used for earth work or road construction purposes, except when reclaimed water is used. 11. The use of water for commercial, manufacturing or processing purposes shall be reduced in volume by fifty percent, except when reclaimed water is used. 12. No water shall be used for air conditioning purposes, unless reclaimed water is available and permitted. A. No customer of the District shall make, cause, use, or permit the use of water supplied by the District for greenbelt uses, including, but not limited to, cemeteries, golf courses, parks, and highway landscaped areas, when, following notice and a hearing, the District finds that reclaimed water is available under the following conditions: City of Carlsbad, CA § 3.04.060 § 3.04.070 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 276 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 32 § 2, 1990; Ord. 49, 7/16/2024) § 3.04.080. Mandatory conservation phase implementation. The Carlsbad Municipal Water District shall monitor the projected supply and demand for water by its customers on a daily basis. The Manager shall determine the extent of the conservation required through the implementation and/or termination of particular conservation stages in order for the Carlsbad Municipal Water District to prudently plan for and supply water to its customers. Thereafter, the Manager may order that the appropriate stage of water conservation be implemented or terminated in accordance with the applicable provision of this chapter. The declaration of any stage beyond Stage 1 shall be made by public announcement and notice shall be published a minimum of three consecutive times in a newspaper of general circulation. The stage designated shall become effective immediately upon announcement. The declaration of any stage beyond Stage 1 shall be reported to the Board of Directors at its next regular meeting. The Board of Directors shall thereupon ratify the declaration, rescind the declaration, or direct the declaration of a different stage. (Ord. 30 § 7, 1989; Ord. 49, 7/16/2024) § 3.04.090. Penalty. As provided in Water Code Section 377, any violation of this chapter is a misdemeanor. Upon conviction thereof such person shall be punished by imprisonment in the County Jail for not more than thirty days, or by fine not exceeding one thousand dollars, or by both. In addition to any other remedies which the Carlsbad Municipal Water District may have for the enforcement of this chapter, service of water shall be discontinued or appropriately limited to any customer who willfully uses water in violation of any provision hereof. (Ord. 30 § 8, 1989; Ord. 49, 7/16/2024) 1. The reclaimed water is of adequate quality and is available for use; 2. The reclaimed water may be furnished to such areas at a reasonable cost, comparable to or less than the cost of supplying potable domestic water; 3. The State Department of Health Services has determined that such use would not be detrimental to public health; and 4. The use of reclaimed water will not adversely affect downstream water rights, will not degrade water quality. B. Following such a determination, the District may assist the customer in obtaining any permits or approvals required for the use of reclaimed water. City of Carlsbad, CA § 3.04.070 § 3.04.090 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 277 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 CHAPTER 3.08 RECYCLED WATER §3.08.010. Findings. The State policies described in the California Water Code Sections461, 13550 and 13551 are in the best interest of the District. The majority of jurisdictions in San Diego County have adopted measures to promote water reclamation. This chapter is necessary to protect the common water supply of the region which is vital to public health and safety, and to prevent endangerment of public and private property. San Diego County is highly dependent on limited imported water for domestic, agricultural, and industrial uses. The reliability of the supply of imported water is uncertain. By developing and utilizing recycled water, the need for additional imported water can be reduced. In light of these circumstances, certain uses of potable water may be considered unreasonable or to constitute a nuisance where recycled water is available or production of recycled water is unduly impaired. Recycled water would be more readily available in seasons of drought when the supply of potable water for nonessential uses may be uncertain. (Ord. 43 § 1, 2005; Ord. 49, 7/16/2024) §3.08.020. Water reclamation policy. It is the policy of the District that recycled water shall be used within the jurisdiction wherever it has determined that its use is economically justified, financially and technically feasible, and consistent with legal requirements, preservation of public health, safety and welfare, and the environment. (Ord. 43 § 2, 2005; Ord. 49, 7/16/2024) §3.08.030. Definitions. The following terms are defined for purposes of this chapter: AGRICULTURAL PURPOSES: Agricultural purposes include the growing of field and nursery crops, row crops, trees, and vines and the feeding of fowl and livestock. ARTIFICIAL LAKES: A human-made lake, pond, lagoon, or other body of water that is used wholly or partly for landscape, scenic, or noncontact recreational purposes. COMMERCIAL OFFICE BUILDINGS: Any building for office or commercial uses with water requirements which include, but are not limited to, landscape irrigation, toilets, urinals, and decorative fountains. COVERAGE TEST: The coverage test means a field investigation by a cross-connection control specialist to verify that there is no overspray, misting, ponding, and runoff occurring when the irrigation system is in operation, and that proper color coding and signage is in place for the on-site facilities. CROSS-CONNECTION TEST: A cross-connection test means to verify that the potable and recycled water supplies are not connected to each other by shutting down the recycled water supply to the on-site facilities for twenty-four hours and determining that the on-site facilities do not become pressurized by the potable water supply at any City of Carlsbad, CA § 3.08.010 § 3.08.030 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 278 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 location. The purpose for the test is to demonstrate that at the time of the test there are no discoverable cross-connections between the site's potable and recycled systems. GREENBELT AREAS: A greenbelt area includes, but is not limited to, golf courses, cemeteries, parks, and landscaping. INDUSTRIAL PROCESS WATER: Water used by any industrial facility with process water requirements which include, but are not limited to, rinsing, washing, cooling and circulation, or construction, including any facility regulated by the Industrial Waste Discharge Ordinance regulated by Chapter 13.16 of the Carlsbad Municipal Code. OFF-SITE FACILITIES: Water facilities from the source of supply to the point of connection with the on-site facilities, normally up to and including the water meter. ON-SITE FACILITIES: Water facilities under the control of the owner, normally downstream from the water meter. POTABLE WATER: Water which conforms to the Federal, State, and local standards for human consumption. RECYCLED WATER: Recycled water means water which, as a result of treatment of wastewater, is suitable for a direct beneficial use or a controlled use that would not otherwise occur and is therefore considered a valuable resource. (See California Water Code Section 13050(n).) RECYCLED WATER DISTRIBUTION SYSTEMS: A piping system intended for the delivery of recycled water separate from and in addition to the potable water distribution system. WASTE DISCHARGE: Waste discharge means water deposited, released, or discharged into a sewer system from any commercial, industrial, or residential source which contains levels of any substance or substances which may cause substantial harm to any water treatment or reclamation facility or which may prevent any use of recycled water authorized by law. (Ord. 43 § 3, 2005; Ord. 49, 7/16/2024) § 3.08.040. Water Reclamation Master Plan. A. General. Upon adoption of this ordinance, the District shall prepare and adopt by resolution a Water Reclamation Master Plan to define, encourage, and develop the use of recycled water within its boundaries. The Master Plan shall be updated not less often than every five years. B. Contents of the Water Reclamation Master Plan. The Water Reclamation Master Plan (Master Plan) will include the following: 1. Plants and Facilities. Evaluation of the location and size of present and future reclamation treatment plants, distribution pipelines, pump stations, reservoirs, and other related facilities, including cost estimates and potential financing methods. 2. Recycled Water Service Areas. A designation of the lands within the District City of Carlsbad, CA § 3.08.030 § 3.08.040 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 279 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 43 § 4, 2005; Ord. 49, 7/16/2024) § 3.08.050. Procedures. service area that can or may in the future use recycled water in lieu of potable water. Recycled water uses may include, but are not limited to, the irrigation of greenbelt and agricultural areas, filling of artificial lakes, and appropriate industrial and commercial uses. 3. Quality of Water to Be Reclaimed. For each water reclamation treatment facility, an evaluation of water quality with respect to the effect on anticipated uses of recycled water to be served by each treatment facility. 4. Water Quality Protection Measures. Recommend control measures and management practices to maintain or improve the quality of recycled water. 5. Mandatory Recycled Water Use. Within the recycled water service area, a description shall be prepared of where greenbelt irrigation, agricultural irrigation, commercial office buildings, filling of artificial lakes, or industrial processes can be limited to the use of recycled water. This information shall be used by District officials to mandate construction of recycled water distribution systems or other facilities in new and existing developments for current or future recycled water use as a condition of any development approval or continued water service if future reclamation facilities are proposed in the Master Plan that could adequately serve the development. 6. Rules and Regulations for Recycled Water Use. Establish by resolution, general rules and regulations governing the use and distribution of recycled water. 7. Coordination Among Agencies for Recycled Water Use. An examination shall be made of the potential for initiating a coordinated effort between the Carlsbad Municipal Water District and other regional agencies to share in the production and utilization of recycled water. A. Existing Potable Water Service. 1. Preliminary Determination. Based upon the Master Plan, and upon the designation of each recycled water service area or the commencement of the design of new recycled water facilities, the District shall make preliminary determinations as to which existing potable water customers shall be converted to the use of recycled water. Each water customer shall be notified of the basis for a determination that conversion to recycled water service will be required, as well as the proposed conditions and of the need for a plan of implementation for such conversion. 2. Notice. The notice of the preliminary determination, including the proposed conditions and time schedule for compliance, shall be sent to the water customer by certified mail. 3. Implementation. City of Carlsbad, CA § 3.08.040 § 3.08.050 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 280 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 a. The water customer shall be required to submit a plan of implementation to the Carlsbad Municipal Water District's Executive Manager or designee within ninety days after receipt of the notice of preliminary determination. b. The plan of implementation shall describe in detail how the water customer intends to retrofit the water facilities to use recycled water in accordance with all Federal, State, and local laws and public health guidelines. The District shall provide the water customer upon request a copy of its "Rules and Regulations for Recycled Water Use" to be a reference for water customer's in preparing the required plan of implementation for their on-site facilities. All costs for preparation of the plan of implementation are the responsibility of the water customer. Carlsbad Municipal Water District's Executive Manager or designee shall have the authority to approve the water customer's plan of implementation within thirty days after it is submitted to the District. As an option, the District will prepare the "plan of implementation" at the District's cost for the water customer, provided the water customer signs an acknowledgement to install and accept the proposed improvements shown on the District approved plan of implementation. c. Once approved, the plan of implementation must be implemented within six months by the water customer including completion of all coverage and cross connection tests and payment of any plan check and inspection fees if applicable. All costs for implementation of the improvements on the plan of implementation are the responsibility of the water customer. If more than six months is required for the implementation, an appeal may be made for additional time to the Carlsbad Municipal Water District's Board of Directors by submitting such appeal in writing to the Executive Manager of the District. 4. Objections—Appeals. The water customer may file a notice of objection with the District within thirty days after any notice of determination to comply is delivered or mailed to the customer, and may request reconsideration of the determination or modification of the proposed conditions or schedule for conversion. The objection must be in writing and specify the reasons for the objection. The preliminary determination shall be final if the customer does not file a timely objection. The Executive Manager or designee shall review the objection with the objector, and shall confirm, modify, or abandon the preliminary determination, or submit the objection to the District's Board of Directors. The Board, at its sole discretion may confirm, modify, or abandon the preliminary determination or establish an alternative program intended to facilitate the orderly development of the recycled water system. B. New Development and Water Service Approvals. 1. Conditions. Upon application by a developer, owner or water customer (herein referred to as "applicant") for a tentative map, subdivision map, land use City of Carlsbad, CA § 3.08.050 § 3.08.050 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 281 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 permit, or other development project as defined by Government Code Section 65928, staff shall review the Master Plan and make a preliminary determination whether the current or proposed use of the subject property is required to be served with recycled water or to include facilities designed to accommodate the use of recycled water in the future. Based upon such determination, use of recycled water and provision of recycled water distribution systems or other facilities for the use of recycled water, and such use may be required as a condition of approval of any such application, in addition to any other conditions of approval. 2.Alterations and Remodeling. On a case-by-case basis, upon application for a permit for the alteration or remodeling of multifamily, commercial, or industrial structures (including, for example, hotels), staff shall review the Master Plan and make a preliminary determination whether the subject property shall be required to be served with recycled water or to include facilities designed to accommodate the use of recycled water in the future. Based upon such determination, use of recycled water and provision of recycled water distribution systems or other facilities for the use of recycled water, and application for a permit for such use, may be required as a condition of approval of the application. 3.Notice of Determination. A notice of the basis for the preliminary determination, proposed conditions of approval and schedule for compliance shall be provided to the applicant prior to approval of the development application. 4.Requested Service. On a case-by-case basis, to use recycled water on a property not covered by subsection (A)(1), (B)(1), or (B)(2), the District shall review the Master Plan and make a determination whether the subject property shall be served with recycled water. Based upon such determination, a written Notice of Determination will be provided to the water customer by the District. 5.Plan Approval. Plans for the recycled and non-recycled water distribution systems for the parcel shall be reviewed and approved by the District before on-site facilities are constructed. A recycled water number will be assigned by the District and this number shall be placed on the plans for record purposes. 6.Field Inspection. Prior to the use of recycled water, the District will perform a coverage test and cross-connection test of the constructed on-site facilities to verify that they are in compliance with the approved plan and meet all California State Department of Health Services requirements for use of recycled water. Upon approval of the coverage test, the water customer will be required to fill out a Notice of Appointment of Site Supervisor form, and will be provided Rules and Regulations for Recycled Water Use. The water customer's site supervisor will also be required to attend the San Diego County Water Authority's training class on use and handling of recycled water, or other approved training class. The coverage test will take place after the recycled water meter is installed. The District and the City of Carlsbad has no City of Carlsbad, CA § 3.08.050 § 3.08.050 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 282 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 43 § 5, 2005; Ord. 49, 7/16/2024) § 3.08.060. Regulation of brine discharge to sewage systems. (Ord. 43 § 6, 2005; Ord. 49, 7/16/2024) § 3.08.070. Sanctions. required fees for this work but the water customer is responsible for paying San Diego County Department of Environmental Health applicable fees associated with this work. C. Temporary Use of Potable Water. At the discretion of the Executive Manager or designee, potable water may be made available on a temporary basis until recycled water is available. Before the applicant receives temporary potable water, the on- site facilities must be constructed in accordance with the plan of implementation and field inspected by the staff for new on-site distribution facilities. Prior to commencement of recycled water service, a coverage and cross-connection test of the on-site facilities will be conducted to verify that the facilities have been maintained and are in compliance with the recycled water irrigation system Plan of Implementation and current requirements for service. Upon verification of compliance, recycled water shall be served to the parcel for the intended use. The District shall provide written notice if the facilities are not in compliance, and the applicant shall be notified of the corrective actions necessary and shall have sixty days to take such actions prior to initiation of enforcement proceedings. The water customer will be required to fill out the form described in subsection (B)(6), and the site supervisor will be required to attend the San Diego County Water Authority's class on use and handling of recycled water or other approved training class. D. Recycled Water Rate. The rate charged for reclaimed water shall be established by resolution of the Board of Directors. A. Intent. The Carlsbad Municipal Water District recognizes that to maintain adequate wastewater quality for water reclamation treatment processes, and to protect public and private property, restrictions may be required on certain industrial, commercial, and residential waste discharges to a sewerage system that is located within a designated tributary area of an existing or planned reclamation facility. B. Adopted Tributary Protection Measures. Waste discharges to the sewage system from any industrial, commercial, or residential source, may be restricted or prohibited upon a finding, following a noticed public hearing, that the type or class of discharge involved is capable of causing or may cause substantial damage or harm to any sewage treatment or reclamation facility or to any significant user or users or potential user or users of reclaimed water within an area which has been planned for reclaimed water services. A. Public. Discharge by any person or entity of wastes or the use of recycled water in any manner in violation of this chapter or of any permit issued hereunder is subject to prosecution for a misdemeanor. B. Injunction. Whenever a discharge of wastes or use of recycled water is in violation City of Carlsbad, CA § 3.08.050 § 3.08.070 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 283 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 43 § 7, 2005; Ord. 49, 7/16/2024) § 3.08.080. Validity. If any provision of this chapter or the application thereof to any person or circumstance is held invalid, the remainder of the chapter and the application of such provisions to other persons or circumstances shall not be affected thereby. (Ord. 43 § 8, 2005; Ord. 49, 7/16/2024) or threatens to cause a violation of this chapter, the District's attorney may seek injunctive relief as may be appropriate to enjoin such discharge or use. C. Revocation. In addition to any other statute or rule authorizing termination of water service, the District may revoke the use of recycled water if a violation of any provision of this chapter is found to exist or if a discharge of wastes or use of recycled water causes or threatens to cause violation of this chapter. D. Penalty. Except as provided in subsection A, any owner and/or operator who violates this chapter shall be subject to: 1. A fine not exceeding one hundred dollars for the first violation; 2. A fine not exceeding two hundred dollars for the second violation within one year; 3. A fine not exceeding five hundred dollars for the third violation within one year; 4. A fine not exceeding one thousand dollars for the fourth and each additional violation within one year. Each and every day during any portion of which any violation of this chapter is committed, continued, or permitted shall be a separate offense. In addition, potable water service to the property may be discontinued. City of Carlsbad, CA § 3.08.070 § 3.08.080 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 284 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 CHAPTER 3.12 DROUGHT RESPONSE §3.12.010. Declaration of necessity and intent. (Ord. 44 § 1, 2009; Ord. 48 § 1; 2022; Ord. 49, 7/16/2024) §3.12.020. Definitions. The following words and phrases whenever used in this chapter shall have the meaning defined in this section: "District" or "CMWD" means the Carlsbad Municipal Water District. A.This chapter establishes water management requirements necessary to accomplish the following: 1.Conserve water; 2.Enable effective water supply planning; 3.Assure reasonable and beneficial use of water; 4.Prevent waste of water; 5.Prevent unreasonable use of water; 6.Prevent unreasonable method of use of water within the CMWD in order to assure adequate supplies of water to meet the needs of the public; and 7.Further the public health, safety, and welfare, recognizing that water is a scarce natural resource that requires careful management not only in times of drought, but at all times. B.This chapter establishes regulations to be implemented during times of declared water shortages, or declared water shortage emergencies. It establishes 6 levels of drought response actions to be implemented in times of shortage, with increasing restrictions on water use in response to worsening drought conditions and decreasing available supplies. C.Level 1 condition drought response measures are voluntary and will be reinforced through local and regional public education and awareness measures that may be funded in part by, CMWD. D.During drought response condition Levels 2 through 6, all conservation measures and water-use restrictions are mandatory and become increasingly restrictive to attain escalating conservation goals. E.During a drought response condition Level 2 or higher, the water conservation measures and water use restrictions established by this chapter are mandatory and violations are subject to criminal, civil, and administrative penalties and remedies specified in this chapter and as provided in this code. City of Carlsbad, CA § 3.12.010 § 3.12.020 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 285 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 "Grower" refers to those engaged in the growing or raising, in conformity with recognized practices of husbandry, for the purpose of commerce, trade, or industry, or for use by public educational or correctional institutions, of agricultural, horticultural, or floricultural products, and produced: (1) for human consumption or for the market; or (2) for the feeding of fowl or livestock produced for human consumption or for the market; or (3) for the feeding of fowl or livestock for the purpose of obtaining their products for human consumption or for the market. "Grower" does not refer to customers who purchase water subject to the Metropolitan Interim Agricultural Water Program or the Water Authority Special Agricultural Rate programs. "Metropolitan" or "MWD" means the Metropolitan Water District of Southern California. "Person" means any natural person, corporation, public or private entity, public or private association, public or private agency, government agency or institution, school district, college, university, or any other user of water provided by the CMWD. "Water Authority" or "CWA" means the San Diego County Water Authority. "WSCP" means the Water Authority's Water Shortage Contingency Plan or CMWD's Water Shortage Contingency Plan, as specified, in existence on the effective date of this ordinance and as readopted or amended from time to time, or an equivalent plan of the Water Authority to manage or allocate supplies during shortages. (Ord. 44 § 2, 2009; Ord. 48 § 2, 2022; Ord. 49, 7/16/2024) § 3.12.030. Water waste prohibitions. The following water conservation measures will be in effect at all times: A. Stop washing down paved surfaces, including, but not limited to, sidewalks, driveways, parking lots, tennis courts, or patios except when it is necessary to alleviate safety or sanitation hazards. B. Stop water waste resulting from inefficient landscape irrigation, such as runoff, low head drainage, or overspray, etc. Similarly, stop water flows onto non-targeted areas, such as adjacent property, non-irrigated areas, hardscapes, roadways, or structures. C. Use a hand-held hose equipped with a positive shut-off nozzle or bucket to water landscaped areas, including trees and shrubs located on residential and commercial properties that are not irrigated by a landscape irrigation system. D. Use re-circulated water to operate ornamental fountains. E. Wash vehicles using a bucket and a hand-held hose with positive shut-off nozzle, mobile high pressure/low volume wash system, or at a commercial site that re- circulates (reclaims) water on site. Avoid washing during hot conditions when additional water is required to due to evaporation. F. Serve and refill water in restaurants, bars, and other food service establishments only upon request. City of Carlsbad, CA § 3.12.020 § 3.12.030 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 286 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 44 § 3, 2009; Ord. 48 § 3; 2022; Ord. 49, 7/16/2024) § 3.12.040. Application. (Ord. 44 § 4, 2009; Ord. 48 § 4, 2022; Ord. 49, 7/16/2024) § 3.12.050. Authorization. The CMWD General Manager, or a designated representative, is hereby authorized and directed to implement the provisions of this chapter. (Ord. 44 § 5, 2009; Ord. 48 § 5, 2022; Ord. 49, 7/16/2024) § 3.12.060. Drought Response Level 1. G. Offer guests in hotels, motels, and other commercial lodging establishments the option of not laundering towels and linens daily. H. Use recycled or non-potable water for construction purposes when available and economically feasible. A. The provisions of this chapter apply to any person in the use of any water provided by the CMWD. B. This chapter is intended solely to further the conservation of water. It is not intended to implement any provision of Federal, State, or local statutes, ordinances, or regulations relating to protection of water quality or control of drainage or runoff. Please refer to the City of Carlsbad or the Regional Water Quality Control Board for information on any stormwater ordinances and stormwater management plans. C. Nothing in this chapter is intended to affect or limit the ability of the CMWD to declare and respond to an emergency, including an emergency that affects the ability of the CMWD to supply water. D. The provisions of this chapter do not apply to use of water from private wells or to recycled water. E. Nothing in this chapter shall apply to use of water that is subject to a special supply program, such as the Water Authority's Special Agricultural Water Rate Program. Violations of the conditions of special supply programs are subject to the penalties established under the applicable program. A person using water subject to a special supply program and other water provided by the CMWD is subject to this chapter in the use of the other water. A. A Drought Response Level 1 condition applies when the Water Authority notifies its member agencies, or the Executive Manager, upon recommendation of the General Manager, otherwise declares, that, due to drought or other supply reductions, there is a reasonable probability there will be supply shortages and that a consumer demand reduction of up to ten percent is required in order to have sufficient supplies available to meet anticipated demands. The Executive Manager, upon recommendation of the General Manager, shall declare the existence of a Drought Response Level 1 and take action to implement the Level 1 conservation City of Carlsbad, CA § 3.12.030 § 3.12.060 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 287 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 44 § 6, 2009; Ord. 48 § 6, 2022; Ord. 49, 7/16/2024) § 3.12.070. Drought Response Level 2. practices identified in this chapter. B. During a Drought Response Level 1 condition, CMWD will increase its public education and outreach efforts to emphasize increased public awareness of the need to implement the following water conservation practices. The same water conservation practices become mandatory if CMWD declares a Level 2 Drought Condition: 1. Irrigate residential and commercial landscape before ten a.m. and after six p.m. only. Watering is permitted at any time when a drip/micro-irrigation system/ equipment is used. 2. Irrigate nursery and commercial grower's products before ten a.m. and after six p.m. only. Watering is permitted at any time with a hand-held hose equipped with a positive shut-off nozzle, a bucket, or when a drip/micro- irrigation system/equipment is used. Irrigation of nursery propagation beds is permitted at any time. Watering of livestock is permitted at any time. 3. Repair all water leaks within five days of notification by the CMWD unless other written arrangements are made with the General Manager or designee. C. During a Drought Response Level 2 condition or higher, all persons shall be required to implement the conservation practices established in Drought Response Level 1 condition. A. A Drought Response Level 2 condition applies when the Water Authority notifies its member agencies, or the CMWD Board of Directors otherwise declares that due to cutbacks caused by drought or other reduction in supplies, a consumer demand reduction of up to twenty percent is required in order to have sufficient supplies available to meet anticipated demands. The CMWD Board of Directors shall declare the existence of a Drought Response Level 2 condition and implement the mandatory Level 2 conservation measures identified in this chapter. B. All persons using CMWD water shall comply with Level 1 water conservation practices during a Drought Response Level 2 condition, and shall also comply with the following additional conservation measures: 1. Limit residential and commercial landscape irrigation to no more than three assigned days per week on a schedule established by the General Manager and posted by the CMWD. This subsection shall not apply to commercial growers and nurseries. 2. Limit lawn watering and landscape irrigation using sprinklers to no more than ten minutes per watering station per assigned day. This provision does not apply to landscape irrigation systems using water efficient devices, including, but not limited to: weather-based controllers, drip/micro-irrigation systems, and stream rotor sprinklers. City of Carlsbad, CA § 3.12.060 § 3.12.070 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 288 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 44 § 7, 2009; Ord. 46 § 2, 2009; Ord. 48 § 7, 2022; Ord. 49, 7/16/2024) § 3.12.080. Drought Response Level 3. 3. Water landscaped areas, including trees and shrubs located on residential and commercial properties, and not irrigated by a landscape irrigation system governed by Section 3.12.060(B)(1), on the same schedule set forth in Section 3.12.060(B)(1) by using a bucket, hand-held hose with positive shut-off nozzle, or low-volume non-spray irrigation. 4. Repair all leaks within seventy-two hours of notification by the CMWD unless other written arrangements are made with the General Manager or designee. 5. Stop operating ornamental fountains or similar decorative water features unless recirculated water is used. A. A Drought Response Level 3 condition applies when the Water Authority notifies its member agencies, or the CMWD Board of Directors otherwise declares, that due to increasing cutbacks caused by drought or other reduction of supplies, a consumer demand reduction of up to thirty percent is required in order to have sufficient supplies available to meet anticipated demands. The CMWD Board of Directors shall declare the existence of a Drought Response Level 3 condition and implement the Level 3 conservation measures identified in this chapter. B. All persons using CMWD water shall comply with Level 1 and Level 2 water conservation practices during a Drought Response Level 3 condition and shall also comply with the following additional mandatory conservation measures: 1. Limit residential and commercial landscape irrigation to no more than two assigned days per week on a schedule established by the General Manager and posted by the CMWD. This subsection shall not apply to commercial growers or nurseries. 2. Water-landscaped areas, including trees and shrubs located on residential and commercial properties, and not irrigated by a landscape irrigation system governed by Section 3.12.070(B)(2), on the same schedule set forth in Section 3.12.070(B)(1) by using a bucket, hand-held hose with a positive shut-off nozzle, or low-volume non-spray irrigation. 3. Stop washing vehicles except at commercial carwashes that re-circulate water, or by high pressure/low volume wash systems. 4. Repair all leaks within forty-eight hours of notification by the CMWD unless other written arrangements are made with the General Manager or designee. C. Upon the declaration of a Drought Response Level 3 condition, the CMWD will suspend consideration of annexations to its service area. D. The CMWD Board of Directors may establish a water allocation for property served by the CMWD using a method that does not penalize persons for the implementation of conservation methods or the installation of water saving devices. City of Carlsbad, CA § 3.12.070 § 3.12.080 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 289 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 44 § 8, 2009; Ord. 46 § 2, 2009; Ord. 48 § 8, 2022; Ord. 49, 7/16/2024) § 3.12.090. Drought Response Level 4. (Ord. 44 § 9, 2009; Ord. 48 § 9, 2022; Ord. 49, 7/16/2024) § 3.12.100. Drought Response Level 5. If the CMWD Board of Directors establishes a water allocation it shall provide notice of the allocation by including it in the regular billing statement for the fee or charge or by any other mailing to the address to which the CMWD customarily mails the billing statement for fees or charges for on-going water service. Following the effective date of the water allocation as established by the CMWD Board of Directors, any person that uses water in excess of the allocation shall be subject to a penalty in the amount equal to the penalty rate established by the Metropolitan Water District of Southern California for each billing unit of water in excess of the allocation. The penalty for excess water usage shall be cumulative to any other remedy or penalty that may be imposed for violation of this chapter. A. A Drought Response Level 4 condition applies when the Water Authority notifies its member agencies or the CMWD Board of Directors otherwise declares, that due to increasing cutbacks caused by drought or other reduction of supplies, a consumer demand reduction of up to forty percent is required in order to have sufficient supplies available to meet anticipated demands. The CMWD Board of Directors shall declare the existence of a Drought Response Level 4 condition and implement the Level 4 conservation measures identified in this chapter. B. All persons using CMWD water shall comply with Level 1, Level 2, and Level 3 water conservation practices during a Drought Response Level 4 condition and shall also comply with the following additional mandatory conservation measures: 1. Stop filling or re-filling lakes or ponds, except to the extent needed to sustain aquatic life, provided that such animals are of significant value and have been actively managed within the water feature prior to the declaration of a drought response level under this ordinance. A. A Drought Response Level 5 condition applies when the Water Authority notifies its member agencies, or the CMWD Board of Directors otherwise declares, that due to increasing cutbacks caused by drought or other reduction of supplies, a consumer demand reduction of up to fifty percent is required in order to have sufficient supplies available to meet anticipated demands. The CMWD Board of Directors shall declare the existence of a Drought Response Level 5 condition and implement the Level 5 conservation measures identified in this ordinance. B. All persons using CMWD water shall comply with conservation measures required during Level 1, Level 2, Level 3, and Level 4 conditions and shall also comply with the following additional mandatory conservation measures: 1. Stop all landscape irrigation, except crops and landscape products of commercial growers and nurseries. This restriction shall not apply to the following categories of use unless the CMWD has determined that recycled City of Carlsbad, CA § 3.12.080 § 3.12.100 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 290 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 water is available and may be lawfully applied to the use. a. Maintenance of trees and shrubs that are watered on the same schedule set forth in Section 3.12.080(B)(1) by using a bucket, hand-held hose with a positive shut-off nozzle, or low-volume non-spray irrigation; b. Maintenance of existing landscaping necessary for fire protection as specified by the Fire Marshal of the local fire protection agency having jurisdiction over the property to be irrigated; c. Maintenance of existing landscaping for erosion control; d. Maintenance of plant materials identified to be rare or essential to the wellbeing of rare animals; e. Maintenance of landscaping within active public parks and playing fields, day care centers, schools' grounds, cemeteries, and golf course greens, provided that such irrigation does not exceed two days per week according to the schedule established under Section 3.12.080(B)(1). f. Watering of livestock; and g. Public works projects and actively irrigated environmental mitigation projects. 2. Repair all water leaks within twenty-four hours of notification by the CMWD unless other arrangements are made with the General Manager or designee. C. The CMWD Board of Directors may establish a water allocation for property served by the CMWD. If the CMWD Board of Directors establishes a water allocation it shall provide notice of the allocation by including it in the regular billing statement for the fee or charge or by any other mailing to the address to which the CMWD customarily mails the billing statement for fees or charges for on-going water service. Following the effective date of the water allocation as established by the CMWD Board of Directors, any person that uses water in excess of the allocation shall be subject to a penalty in the amount equal to the penalty rate established by the Metropolitan Water District of Southern California for each billing unit of water in excess of the allocation. The penalty for excess water usage shall be cumulative to any other remedy or penalty that may be imposed for violation of this Code. D. Upon the declaration of a Drought Response Level 5 condition, no new potable water service shall be provided, no new temporary meters or permanent meters shall be provided, and no statements of immediate ability to service or provide potable water service (such as, will serve letters, certificates, or letters of availability) shall be issued, except under the following circumstances: 1. A valid, unexpired building permit has been issued for the project; 2. The project is necessary to protect the public's health, safety, and welfare; or City of Carlsbad, CA § 3.12.100 § 3.12.100 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 291 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 48 § 10, 2022; Ord. 49, 7/16/2024) § 3.12.110. Drought Response Level 6. (Ord. 48 § 11, 2022; Ord. 49, 7/16/2024) § 3.12.120. Correlation between Drought Management Plan and drought response levels. 3. The applicant provides substantial evidence of an enforceable commitment that water demands for the project will be offset prior to the provision of a new water meter(s) to the satisfaction of CMWD. Nothing in this section shall be construed to preclude the resetting or turn-on of meters to provide continuation of water service or to restore service that has been interrupted for a period of one year or less. A. A Drought Response Level 6 condition applies when the Water Authority, or the CMWD Board of Directors, declares a water shortage emergency pursuant to California Water Code Section 350 and that Level 6 requires a demand reduction of more than fifty percent in order for the CMWD to have maximum supplies available to meet anticipated demands. The CMWD shall declare the existence of a Drought Emergency in the manner and on the grounds provided in California Water Code Section 350. B. All persons using CMWD water shall comply with conservation measures required during Level 1, Level 2, Level 3, Level 4, and Level 5 conditions and shall also comply with the following additional mandatory conservation measures: 1. Stop all landscape irrigation, except crops and landscape products of commercial growers and nurseries. This restriction shall not apply to the following categories of use unless the CMWD has determined that recycled water is available and may be lawfully applied to the use. a. Maintenance of existing landscaping necessary for fire protection as specified by the Fire Marshal of the local fire protection agency having jurisdiction over the property to be irrigated; b. Maintenance of existing landscaping for erosion control; c. Maintenance of plant materials identified to be rare or essential to the well-being of rare animals; d. Watering of livestock; and e. Public works projects and actively irrigated environmental mitigation projects. A. The correlation between the Water Authority's WSCP shortage levels and the CMWD's drought response levels identified in this chapter is described in this section. Under WSCP Shortage Level 1, the CMWD would implement Drought City of Carlsbad, CA § 3.12.100 § 3.12.120 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 292 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 44 § 10, 2009; Ord. 48 § 12, 2022; Ord. 49, 7/16/2024) §3.12.130. Procedures for determination and notification of each drought response level. Response Level 1 actions. Under WSCP Shortage Level 2, the CMWD would implement Drought Response Level 1 and Level 2 actions. Under WSCP Shortage Level 3, the CMWD would implement Drought Response Level 1, Level 2 and Level 3 actions. Under WSCP Shortage Level 4, the CMWD would implement Drought Response Level 1, Level 2, Level 3, and Level 4 actions. Under WSCP Shortage Level 5, the CMWD would implement Drought Response Level 1, Level 2, Level 3, Level 4, and Level 5 actions. Under WSCP Shortage Level 6, the CMWD would implement Drought Response Level 1, Level 2, Level 3, Level 4, Level 5 and Level 6 actions. B.The drought response levels identified in this chapter correspond with the Water Authority WSCP as identified in the following table: Drought Response/WSCP Shortage Levels Use Restrictions Conservation Target 1 Voluntary Up to 10% 2 Mandatory Up to 20% 3 Mandatory Up to 30% 4 Mandatory Up to 40% 5 Mandatory Up to 50% 6 Mandatory Above 50% A.The existence of a Drought Response Level 1 may be declared by the Executive Manager upon a written determination of the existence of the facts and circumstances supporting the determination. A copy of the written determination shall be filed with the Secretary of the CMWD and provided to the CMWD Board of Directors. The CMWD may publish a notice of the determination of existence of Drought Response Level 1 condition in one or more newspapers, including a newspaper of general circulation within the CMWD. The CMWD may also post notice of the condition on their website. B.The existence of Drought Response Level 2, Level 3, Level 4 or Level 5 conditions may be declared by resolution of the CMWD Board of Directors adopted at a regular or special public meeting held in accordance with State law. The mandatory conservation measures applicable to Drought Response Level 2, Level 3, Level 4 or Level 5 conditions shall take effect on the tenth day after the date the response level is declared. Within five days following the declaration of the response level, the CMWD shall publish a copy of the resolution in a newspaper of general circulation used for publication of official notices. If the CMWD establishes a water allocation, it shall provide notice of the allocation by including it in the regular City of Carlsbad, CA § 3.12.120 § 3.12.130 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 293 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 44 § 11, 2009; Ord. 48 § 13, 2022; Ord. 49, 7/16/2024) §3.12.140. Hardship variance. billing statement for the fee or charge or by any other mailing to the address to which the CMWD customarily mails the billing statement for fees or charges for on-going water service. Water allocation shall be effective of the fifth day following the date of mailing or at such later date as specified in the notice. C.The existence of a Drought Response Level 6 condition may be declared in accordance with the procedures specified in California Water Code Sections 351 and 352. The mandatory conservation measures applicable to Drought Response Level 6 conditions shall take effect on the tenth day after the date the response level is declared. Within five days following the declaration of the response level, the CMWD shall publish a copy of the resolution in a newspaper of general circulation used for publication of official notices. D.The CMWD Board of Directors may declare an end to a drought response level by the adoption of a resolution at any regular or special meeting held in accordance with State law. A.If, due to unique circumstances, a specific requirement of this chapter would result in undue hardship to a person using agency water or to property upon which agency water is used, that is disproportionate to the impacts to CMWD water users generally or to similar property or classes of water uses, then the person may apply for a variance to the requirements as provided in this section. B.The variance may be granted or conditionally granted, only upon a written finding of the existence of facts demonstrating an undue hardship to a person using agency water or to property upon which agency water is used, that is disproportionate to the impacts to CMWD water users generally or to similar property or classes of water use due to specific and unique circumstances of the user or the user's property. Hardship variances shall also be subject to the following requirements: 1.Application. Application for a variance shall be on a form prescribed by the CMWD General Manager and shall be accompanied by a non-refundable processing fee in an amount set by resolution of the CMWD Board of Directors. 2.Supporting Documentation. The application shall be accompanied by photographs, maps, drawings, and other information, including a written statement of the applicant. 3.Required Findings for Variance. An application for a variance shall be denied unless the General Manager finds, based on the information provided in the application, supporting documents, or such additional information as may be requested, and on water use information for the property as shown by the records of the CMWD, all of the following: a.That the variance does not constitute a grant of special privilege City of Carlsbad, CA § 3.12.130 § 3.12.140 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 294 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 44 § 12, 2009; Ord. 48 § 14, 2022; Ord. 49, 7/16/2024) §3.12.150. Violations and penalties. inconsistent with the limitations upon other CMWD customers. b.That because of special circumstances applicable to the person, property or its use, the strict application of this chapter would have a disproportionate impact on the person, property or use that exceeds the impacts to customers generally. c.That the authorizing of such variance will not be of substantial detriment to adjacent properties, and will not materially affect the ability of the CMWD to effectuate the purpose of this chapter and will not be detrimental to the public interest. d.That the condition or situation of the subject person, property or the intended use of the property for which the variance is sought is not common, recurrent or general in nature. 4.Approval Authority. The General Manager or designee shall exercise approval authority and act upon any completed application no later than ten calendar days after submittal. The General Manager or designee may approve, conditionally approve, or deny the variance. The applicant requesting the variance shall be promptly notified in writing of the action taken in response to the application. Unless otherwise specified at the time a variance is approved, the variance applies to the subject property during the term of the mandatory drought response level. 5.Appeals to CMWD Executive Manager or designee(s). An applicant may appeal a decision or condition of the General Manager on a variance application to the CMWD Executive Manager or designee(s). An appeal requesting a hearing may only be filed within ten calendar days of the date of the General Manager's written decision. The request shall state the grounds for the appeal. At the appeal hearing, the CMWD Executive Manager or designee(s) shall act as the approval authority and review the appeal de novo by applying the regular variance requirements described in Section 3.12.140(A) and (B)(1)-(4). The decision of the CMWD Executive Manager or designee(s) is final. A.Any person, who uses, causes to be used, or permits the use of water in violation of this chapter is guilty of an offense punishable as provided in this section. B.Each day that a violation of this chapter occurs is a separate offense. C.Administrative fines may be levied for each violation of a provision of this chapter as follows: 1.For the first violation by any customer of any of the provisions of the ordinances codified herein, the CMWD shall verbally notice the fact of such violation to the customer. City of Carlsbad, CA § 3.12.140 § 3.12.150 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 295 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 2.For a second violation by any customer of any of the provisions of the ordinances codified herein, the CMWD shall issue a written notice of the fact of such violation to the customer. 3.For a third violation by a customer of any provision of this chapter the CMWD may install a flow-restricting device of one gallon per minute (1 GPM) capacity for services of up to one and one-half inch size. CMWD may also install a restricting device of comparatively sized restrictors for larger services upon a prior determination that the customer has repeatedly violated the provisions of this chapter regarding the conservation of water and that such action is reasonably necessary to assure compliance with this chapter regarding the conservation of water. In addition, the CMWD may levy an administrative fine of one hundred dollars for a third violation of this chapter. 4.Two hundred dollars for a fourth violation of any provision of this chapter within one year. 5.Five hundred dollars for each additional violation of this chapter within one year. D.If determined by the CMWD's General Counsel to be necessary and appropriate, in lieu of administrative remedies above, each violation of this chapter may be prosecuted as a misdemeanor punishable by imprisonment in the County Jail for not more than thirty days or by a fine not exceeding one thousand dollars, or by both as provided in Water Code Section377. E.Willful violations of the mandatory conservation measures and water use restrictions as set forth in Section 3.12.110 and applicable during a Drought Response Level 6 condition may be enforced by discontinuing service to the property at which the violation occurs as provided by Water Code Section 356. F.All remedies provided for in this section shall be cumulative and not exclusive. G.Any customer against whom a penalty is levied pursuant to this section shall have the right to appeal as follows: 1.The request must be in writing and received by the General Manager within ten calendar days of the postmark mailing of the notice of the action to the customer. Any determination not timely appealed shall be final. The written request shall include: a.A description of the issue, b.Evidence supporting the claim, and c.A request for resolution of the dispute. City of Carlsbad, CA § 3.12.150 § 3.12.150 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 296 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 (Ord. 44 § 130, 2009; Ord. 48 § 15, 2022; Ord. 49, 7/16/2024) The General Manager will review the material submitted and make an independent determination of the issue, which shall be mailed out within fifteen calendar days of receipt of the appeal. 2. The General Manager's determination may be appealed in writing within ten calendar days of the postmark mailing of the notice of determination to the Board of Directors of the CMWD by filing with the Secretary of the CMWD a written notice of such appeal. The Secretary shall set the matter for a hearing before the Board of Directors at an upcoming Board meeting. Notice of the hearing shall be mailed out to the person appealing the decision at least ten calendar days before the date of the appeal hearing. The Board may, in its discretion, affirm, reverse or modify the determination. 3. Fees for filing an appeal under this section shall be established by a resolution of the Board of Directors of the CMWD. City of Carlsbad, CA § 3.12.150 § 3.12.150 Downloaded from https://ecode360.com/CA4913 on 2026-03-10May 12, 2026 Item #10 Page 297 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX I: 2023 CITY OF CARLSBAD HAZARD MITIGATION PLAN May 12, 2026 Item #10 Page 298 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Multi-Jurisdictional Hazard Mitigation Plan City of Carlsbad Annex San Diego County, California 2023 May 12, 2026 Item #10 Page 299 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 i This page is intentionally left blank. May 12, 2026 Item #10 Page 300 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION ONE | Determine the Planning Area and Resources 2 1. SECTION ONE: Determine the Planning Area and Resources 1.1. Planning Area: City of Carlsbad The City of Carlsbad is a coastal community in northern San Diego County, California located 87 miles south of Los Angeles and 35 miles north of San Diego, surrounded by mountains, lagoons, and the Pacific Ocean. The City shares legal boundaries with the Cities of Oceanside to the north, Vista and San Marcos to the east, and Encinitas to the south. Referred to as “The Village by the Sea” by locals, Carlsbad is a prime tourist destination hosting LEGOLAND California, regional shopping centers, specialty retail outlet stores, expansive variety of dining experiences, top rated golf courses and world class resort properties. The city covers 42 square miles with an estimated 2020 population of 118,313. Carlsbad has a semi-arid Mediterranean climate and averages 263 sunny days per year. Winters are mild with periodic rain. Frost is rare along the coast, but sometimes occurs in inland valleys in December and January. Summer is almost rain free, but sometimes overcast and cool with fog off the Pacific. While most days have mild and pleasant temperatures, hot dry Santa Ana winds bring high temperatures on a few days each year, mostly but not exclusively in the fall. As of the 2010 United States Census, the racial makeup of Carlsbad was 82.8% White, 1.3% African American, 0.5% Native American, 7.1% Asian, 0.2% Pacific Islander, 4.0% from other races, and 4.2% from 2 or more races. Hispanic or Latino of any race were 13.3%. Out of 39,964 households in 2011, there were 67.5% families, of which 30.9% had children under the age of 18 living in them and 54.3% were married-couple families. There were 32.5% nonfamily households, of which 25.5% were made up of a householder living alone and 8.3% were a householder living alone who was 65 years or over. The average household size was 2.55 and the average family size was 3.10. Of the population 25 years and over, 95.7% graduated from high school and 51.3% held a bachelor's degree or higher. 65.2% of the population 16 years and over was in the labor force. As of the 2020 San Diego County Point in Time census, Carlsbad’s homeless population was 147 individuals. A full-service city, Carlsbad has its own police and fire services, a water district, parks and recreation, and library and cultural arts departments, in addition to standard administrative and public works functions. Known for its financial stability, the city maintains an AAA credit rating and has a general fund reserve balance exceeding $61 million. Additionally, Carlsbad has drafted ordinances protecting sensitive wildlife habitat, becoming one of the first municipalities in California to do so, pledging to protect about 40 percent of the city as permanent open space. Carlsbad is the home of the second largest county regional airport, McClellan-Palomar Airport, with about 145,862 flights per year. Carlsbad's core industries include information technology, video game development, manufacturing, robotics, medical devices, life science, wireless technology, clean technology, action sports, tourism, design development, and real estate. 1.2. Community Rating System Requirements The Community Rating System (CRS) is a FEMA program and rewards communities that go beyond the minimum standards for floodplain management under the National Flood Insurance Program (NFIP). May 12, 2026 Item #10 Page 301 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION ONE | Determine the Planning Area and Resources 3 Communities can potentially improve their Community Rating System and lower NFIP premiums by developing a CRS Plan. For more information on the National Flood Insurance Program, see http://www.fema.gov/national- flood-insurance-program. Community Rating System (CRS) Planning Steps Local Mitigation Planning Handbook Tasks (44 CFR Part 201) Step 1. Organize Task 1: Determine the Planning Area and Resources Task 2: Build the Planning Team 44 CFR 201.6(c)(1) Step 2. Involve the public Task 3: Create an Outreach Strategy 44 CFR 201.6(b)(1) Step 3. Coordinate Task 4: Review Community Capabilities 44 CFR 201.6(b)(2) & (3) Step 4. Assess the hazard Task 5: Conduct a Risk Assessment 44 CFR 201.6(c)(2)(i) 44 CFR 201.6(c)(2)(ii) & (iii) Step 5. Assess the problem Step 6. Set goals Task 6: Develop a Mitigation Strategy 44 CFR 201.6(c)(3)(i) 44 CFR 201.6(c)(3)(ii) 44 CFR 201.6(c)(3)(iii) Step 7. Review possible activities Step 8. Draft an action plan Step 9. Adopt the plan Task 8: Review and Adopt the Plan 44 CFR 201.6(c)(5) Step 10. Implement, evaluate, revise Task 7: Keep the Plan Current Task 9: Create a Safe and Resilient Community 44 CFR 201.6(c)(4) TABLE 1: FEMA LOCAL MITIGATION PLANNING HANDBOOK 1.1 DESCRIBES THE CRS REQUIREMENTS MET BY THE COUNTY OF SAN DIEGO MULTI -JURISDICTIONAL HAZARD MITIGATION PLAN . May 12, 2026 Item #10 Page 302 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION ONE | Determine the Planning Area and Resources 4 Any jurisdiction or special district may participate in the hazard mitigation planning process. However, to request FEMA approval, each of the local jurisdictions must meet all requirements of 44 CFR §201.6. In addition to the requirement for participation in the process, the Federal regulation specifies the following requirements for multi-jurisdictional plans: • The risk assessment must assess each jurisdiction’s risk where they may vary from the risks facing the entire planning area. (44 CFR §201.6(c)(2)(iii)) • There must be identifiable action items specific to the jurisdiction requesting FEMA approval or credit of the plan. (44 CFR §201.6(c)(3)(iv)) • Each jurisdiction requesting approval of the plan must document that is has been formally adopted. (44 CFR §201.6(c)(5)) The hazard mitigation plan must clearly list the jurisdictions that participated in the plan and are seeking plan approval. The San Diego County Multi-Jurisdictional Hazard Mitigation Plan and annexes meet all requirements. May 12, 2026 Item #10 Page 303 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION TWO | Build the Planning Team 5 2. SECTION TWO: Build the Planning Team 2.1. Planning Participants The City of Carlsbad local planning group (LPG) for emergency planning is composed of members from the Carlsbad Emergency Management Administrative Team (CEMAT). The LPG identified current capabilities available for implementing hazard mitigation activities. Representatives of numerous City departments involved in hazard mitigation planning included: Administrative Services – Finance: Roxanne Muhlmeister, Assistant Finance Director Shea Sainz, Senior Contract Administrator Rosario Aranda, Associate Contract Administrator Administrative Services – Human Resources: Judy von Kalinowski, Human Resources Director Darrin Schwabe, Human Resources Manager Administrative Services – Information Technology: Doug Kappel, Information Technology Manager Javier Ruiz, Information Technology Manager Administrative Services – Innovation & Economic Development: David Graham, Chief Innovation Officer Communications & Engagement: Karen Whitehead, Media & Graphics Supervisor Nikki Matosian, Community Relation Manager Sarah Lemons, Community Relation Manager Tom Mallory, Communications Coordinator Community Services – Office of the City Clerk: Faviola Medina, City Clerk Services Manager Tammy Cloud-McMinn, Senior Deputy City Clerk Hector Gomez, Senior Deputy City Clerk Community Services – Community Development: Kerry Jezisek, Senior Program Manager Community Services – Library & Cultural Arts: Debbie Jo McCool, Associate Analysist Fiona Everett, Senior Management Analysist Community Services – Parks & Recreation: Lori Swenck, Recreation Area Manager Mike Pacheco, Recreation Services Manager May 12, 2026 Item #10 Page 304 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION TWO | Build the Planning Team 6 Fire Department: Michael Calderwood, Fire Chief Nick Ordille, Assistant Fire Chief Randy Metz, Fire Marshall David Harrison, Assistant Director of Emergency Services Marie Jones-Kirk, Program Manager Don Rawson, Emergency Services Coordinator Police Department: Jason Jackowski, Lieutenant Public Works – Environmental Management: Tim Murphy, Senior Program Manager James Wood, Environmental Manager Mike Grim, Senior Program Manager Public Works – Fleet & Facilities: Charles Balteria, Program Manager Public Works – Transportation: Michael O’Brian, Public Works Superintendent Jonathon Schauble, Senior Engineer Stephen Stewart, Municipal Projects Manager Public Works – Utilities: Don Wasko, Utilities Manager Andrew Wilson, Utilities Supervisor Public Works – Construction Management & Inspection: Emily Hasegawa, Municipal Projects Manager 2.2 Planning Process This version of the city’s Hazard Mitigation Plan was revised to reflect changes in development, progress in local mitigation efforts, and changes in priorities. Generally, hazard priorities remained unchanged, though some hazards (such as Climate Change) prevalence and/or probability of occurrence increased and, therefore, needed an updated Vulnerability Assessment. All Hazard Profiles were researched for current content, data, and details. The goals and objectives in this plan were informed by the risk assessment findings, the localized hazard identification and loss/exposure estimates, and the City’s capabilities assessment. These preliminary goals, objectives, and actions represent a vision of long-term hazard reduction and/or capabilities enhancement. To help further the development of the goals and objectives, the LPG compiled and reviewed current jurisdictional sources including the City’s planning documents, codes, and ordinances. The plan goals, objectives, and actions were updated to reflect current priorities within existing plans such as the jurisdiction’s General Plan’s Safety and Housing elements. The 2020 COVID-19 Pandemic had some impact on the overall progress on the 2018 plan and action items, but the pandemic did not negatively impact the community’s vulnerability. The plan was created in tandem with existing local plans and procedures and thus supported the city’s pandemic response, which helped minimize the impact to the city and its assets. May 12, 2026 Item #10 Page 305 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION TWO | Build the Planning Team 7 2021 LPG Schedule of Meetings January 5, 2021 February 2, 2021 March 2, 2021 April 6, 2021 May 4, 2021 June 1, 2021 July 6, 2021 August 3, 2021 September 7, 2021 October 5, 2021 November 2, 2021 December 7, 2021 2022 LPG Schedule of Meetings January 4, 2022 February 1, 2022 March 1, 2022 April 5, 2022 See the San Diego County Multi-Jurisdictional Hazard Mitigation Plan’s Section Two for details about the county-wide Planning Process. May 12, 2026 Item #10 Page 306 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION THREE | Create an Outreach Strategy 8 3. SECTION THREE: Create an Outreach Strategy See the San Diego County Multi-Jurisdictional Hazard Mitigation Plan’s Section Three for details about the county-wide outreach strategy. May 12, 2026 Item #10 Page 307 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 9 4. SECTION FOUR: Review Community Capabilities Local mitigation capabilities are existing authorities, policies, programs, and resources that reduce hazard impacts or that could be used to implement hazard mitigation activities and must be included in a hazard mitigation plan by the planning team. The planning team also may identify additional types of capabilities relevant to mitigation planning. 4.1. Capability Assessment The primary types of capabilities for reducing long-term vulnerability through mitigation planning are: • Planning and Regulatory • Administrative and Technical • Financial • Education and Outreach Based on the capability assessment, the City of Carlsbad has existing regulatory, administrative/technical, and fiscal mechanisms in place to mitigate hazards. In addition to these existing capabilities, there are opportunities to enhance and/or refine these policies and programs to further protect the community. Some examples of potential opportunities are organized below by regulatory, administrative/technical, fiscal, and outreach opportunities. May 12, 2026 Item #10 Page 308 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 10 4.1.1. Planning and Regulatory Planning and regulatory capabilities are the plans, policies, codes, and ordinances that prevent and reduce the impacts of hazards. Please indicate which of the following your jurisdiction has in place: Plans Yes/No Year Does the plan address hazards? Does the plan identify projects to include in the mitigation strategy? Can the plan be used to implement mitigation actions? Comprehensive/Master Plan Yes 2015 Yes Capital Improvements Plan Yes 2020 Yes Economic Development Plan Yes 2020 Yes Local Emergency Operations Plan Yes 2021 Yes Continuity of Operations Plan Yes 2021 Yes Transportation Plan Yes 2020 Yes Stormwater Management Plan Yes 2016 Yes Community Wildfire Protection Plan Yes 2013 Yes M. Real estate disclosure requirements Yes 2020 Yes Other special plans (e.g., brownfields redevelopment, disaster recovery, coastal zone management, climate change adaptation) Y 2019 Y 2021 Y 2020 Coastal Zone Land Use Plan Disaster Recovery Plan Climate Action Plan May 12, 2026 Item #10 Page 309 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 11 Building Code, Permitting, and Inspections Yes/No Are codes adequately enforced? Building Code Yes Version/Year: 2019 Triennial Edition of Title 24 Building Code Effectiveness Grading Schedule (BCEGS) Score No Fire department ISO rating Yes Rating: 3 Site plan review requirements Yes Yes Land Use Planning and Ordinances Yes/No Is the ordinance an effective measure for reducing hazard impacts? Is the ordinance adequately administered and enforced? Zoning ordinance Yes Yes Subdivision ordinance Yes Yes Special purpose ordinances (floodplain management, storm water management, hillside or steep slope ordinances, wildfire ordinances, hazard setback requirements) Yes Yes Growth management ordinances (also called “smart growth” or anti-sprawl programs) Yes Yes Flood insurance rate maps Yes Yes Acquisition of land for open space and public recreation uses Yes Yes Other N/A How can these capabilities be expanded and improved to reduce risk? Future opportunities for regulatory enhancement may focus on compliance with state legislation, including amending the City’s General Plan Public Safety Element to reference the 2023-2028 San Diego County MJHMP and Carlsbad Annex. Additionally, Carlsbad will continue to implement mitigation policies and programs to include regulatory requirements for flooding and coastal hazards; geology and seismicity; airport and railroad hazards; and soils and materials hazards. TABLE 2: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 4.1 DATA. May 12, 2026 Item #10 Page 310 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 12 4.1.2. Administrative and Technical Administrative and technical capabilities include staff and their skills and tools that can be used for mitigation planning and to implement specific mitigation actions. For smaller jurisdictions without local staff resources, if there are public resources at the next higher-level government that can provide technical assistance, indicate so in your comments: Administration Yes/No Describe capability Is coordination effective? Planner(s) or engineer(s) with knowledge of land development and land management practices Yes Manage general, community and urban plans; manage land use and land development projects; review and write environmental documents; prepare and coordinate processing of local, state, and federal permits; review and analyze technical drawings, specifications, and reports; perform site inspections and field research; research, review and prepare ordinances and policies; review projects and advise citizens and developers during application process to ensure compliance with City regulations; prepare planning reports, use GIS products/maps; perform quality control, coordinate various departments and agencies, monitor mitigation requirements for environmentally sensitive projects and perform proper documentation and reporting. Engineer(s) or professional(s) trained in construction practices related to buildings and/or infrastructure Yes Conduct inspections of private and public construction projects inspecting materials and workmanship to ensure compliance with approved plans and specifications. inspect conditions prior to the start of construction, during construction and upon completion. Planners or Engineer(s) with an understanding of natural and/or manmade hazards Yes Carlsbad Planners and Engineers understand the importance of mitigation measures in their respective area of expertise as it relates to hazards risks. Mitigation Planning Committee Yes Carlsbad utilizes its Carlsbad Emergency Management Administrative Team (CEMAT) for planning mitigation. Maintenance programs to reduce risk (e.g., tree trimming, clearing drainage systems) Yes Perform a variety of semi-skilled and skilled work in pruning, trimming, felling, and topping trees; to operate and maintain tree trimming equipment; and to do related work such as clearing draining systems. Mutual aid agreements Yes Carlsbad has several mutual aid agreements in place related to mitigation planning. May 12, 2026 Item #10 Page 311 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 13 Staff Yes/No FT/PT 1 Is staffing adequate to enforce regulations? Is staff trained on hazards and mitigation? Is coordination between agencies and staff effective? Chief Building Official Yes FT-1 Yes Floodplain Administrator Yes FT-1 Yes Emergency Manager Yes FT-2 PT-1 Yes Surveyors No Staff with education or expertise to assess the community’s vulnerability to hazards Yes FT-2 PT-1 Yes Community Planner Yes FT-5 Yes Scientists familiar with the hazards of the community No Civil Engineer Yes FT-4 Yes Personnel skilled in GIS and/or HAZUS Yes FT-5 Yes Grant writers Yes PT-3* *Part of other duties as assigned to full-time positions Other N/A May 12, 2026 Item #10 Page 312 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 14 Technical Yes/No Describe capability Has capability been used to assess/mitigate risk in the past? Warning systems/services (Reverse 911, outdoor warning signals) Yes AlertSanDiego for Reverse 911 operations, Wireless Emergency Alerts (WEA) for emergency notifications, Changeable Message Boards All have been used to mitigate risks from hazards in the past Hazard data and information Yes Previous Regional and Carlsbad-specific hazard data and information has been used to identify and mitigate risks in the past Grant writing Yes PT-3* *Part of other duties as assigned to full-time positions Hazus analysis Yes FEMA Hazus Program has been used to identify and mitigate risks in the past Other N/A How can these capabilities be expanded and improved to reduce risk? Other future enhancements may include providing hazard training for staff or hazard mitigation grant funding in partnership with the County of San Diego and Cal OES. City staff are aware of the benefits of participating in training and webinars offered by Cal OES Hazard Mitigation Assistance (HMA) Team related to HMGP opportunities, HMGP Sub application Development support, and other funding programs, such as Prepare California Jumpstart. Other opportunities may be related to coordinating and educating key stakeholders in the city. Other stakeholders may be interested in aligning efforts related to hazard mitigation and supporting HMGP Sub applications and other hazard mitigation trainings. TABLE 3: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 4.1 DATA CONTINUED. May 12, 2026 Item #10 Page 313 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 15 4.1.3. Education and Outreach Identify education and outreach programs and methods already in place that could be used to implement mitigation activities and communicate hazard-related information: Program/Organization Yes/No Describe program/organization and how relates to disaster resilience and mitigation. Could the program/organization help implement future mitigation activities? Local citizen groups or non-profit organizations focused on environmental protection, emergency preparedness, access, and functional needs populations, etc. Yes Carlsbad partners with several citizen groups and non- government organizations related to coastal zone resources, sensitive habitat management protection, community emergency response, and access and functional needs coordination, all of which help implement mitigation activities Ongoing public education or information program (e.g., responsible water use, fire safety, household preparedness, environmental education) Yes Carlsbad has several community educational programs in almost all its departments, as well as a specific Communication & Engagement Department Natural disaster or safety related school programs Yes Both the Police and Fire Departments offer disaster and safety programs to local schools StormReady certification No Firewise Communities certification No Public-private partnership initiatives addressing disaster-related issues Yes Ready Carlsbad Business Alliance Other N/A How can these capabilities be expanded and improved to reduce risk? The city may also expand outreach capabilities related to the implementation of the 2023-2028 County of San Diego MJHMP and the City’s Annex. Specific enhancements may include continued public involvement through social media posts, community education, and advertisements focused on hazard mitigation projects successes mitigation as well as focused outreach to under-represented and special-interest groups. The city may also develop outreach kits for partner organizations. The city will continue its Hazard Reduction Program, which takes a proactive approach to mitigate hazards within the City of Carlsbad by inspecting privately owned open space lands ensuring city guidelines are appropriately maintained within these areas. Property owners on vacant parcels in the Hazard Reduction Program receive an annual "Notice to Destroy Weeds & Remove Rubbish," and they are expected to maintain their property free of fire hazards or nuisance vegetation year-round. TABLE 4: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 4.1 DATA CONTINUED. May 12, 2026 Item #10 Page 314 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 16 4.2. Safe Growth Audit Identify gaps in your community’s growth guidance instruments and improvements that could be made to reduce vulnerability to future development: Comprehensive Plan Yes No Land Use 1. Does the future land-use map clearly identify natural hazard areas? X 2. Do the land-use policies discourage development or redevelopment within natural hazard areas? X 3. Does the plan provide adequate space for expected future growth in areas located outside natural hazard areas? X Transportation 1. Does the transportation plan limit access to hazard areas? X 2. Is transportation policy used to guide growth to safe locations? X 3. Are movement systems designed to function under disaster conditions (e.g., evacuation)? X Environmental Management 1. Are environmental systems that protect development from hazards identified and mapped? X 2. Do environmental policies maintain and restore protective ecosystems? X 3. Do environmental policies provide incentives to development that is located outside protective ecosystems? X Public Safety 1. Are the goals and policies of the comprehensive plan related to those of the FEMA Local Hazard Mitigation Plan? X 2. Is safety explicitly included in the plan’s growth and development policies? X 3. Does the monitoring and implementation section of the plan cover safe growth objectives? X TABLE 5 : FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 4.2 DATA CONTINUED. May 12, 2026 Item #10 Page 315 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 17 Zoning Ordinance Yes No 1. Does the zoning ordinance conform to the comprehensive plan in terms of discouraging development or redevelopment within natural hazard areas? X 2. Does the ordinance contain natural hazard overlay zones that set conditions for land use within such zones? X 3. Do rezoning procedures recognize natural hazard areas as limits on zoning changes that allow greater intensity or density of use? X 4. Does the ordinance prohibit development within, or filling of, wetlands, floodways, and floodplains? X Subdivision Regulations Yes No 1. Do the subdivision regulations restrict the subdivision of land within or adjacent to natural hazard areas? X 2. Do the regulations provide for conservation subdivisions or cluster subdivisions to conserve environmental resources? X 3. Do the regulations allow density transfers where hazard areas exist? X Capital Improvement Program and Infrastructure Policies Yes No 1. Does the capital improvement program limit expenditures on projects that would encourage development in areas vulnerable to natural hazards? X 2. Do infrastructure policies limit extension of existing facilities and services that would encourage development in areas vulnerable to natural hazards? X 3. Does the capital improvement program provide funding for hazard mitigation projects identified in the FEMA Mitigation Plan? X Other Yes No 1. Do small area or corridor plans recognize the need to avoid or mitigation natural hazards? X 2. Does the building code contain provisions to strengthen or elevate construction to withstand hazard forces? X 3. Do economic development or redevelopment strategies include provisions for mitigation natural hazards? X 4. Is there an adopted evacuation and shelter plan to deal with emergencies from natural hazards? X TABLE 6: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 4.2 DATA CONTINUED. Questions were adapted from Godschalk, David R. Practice Safe Growth Audits, Zoning Practice, Issue Number 10, October 2009, American Planning Association. May 12, 2026 Item #10 Page 316 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 18 4.3. National Flood Insurance Program (NFIP) As a participant in the National Flood Insurance Program (NFIP), a community develops capabilities for conducting flood mitigation activities. The hazard mitigation plan must describe each jurisdiction’s participation in the NFIP. Participating communities must describe their continued compliance with NFIP requirements. The mitigation plan must do more than state that the community will continue to comply with the NFIP. Each jurisdiction must describe their floodplain management program and address how they will continue to comply with the NFIP requirements. The local floodplain administrator is often the primary source for this information. Jurisdictions where FEMA has issued a floodplain map but are currently not participating in the NFIP may meet this requirement by describing the reasons why the community does not participate. Plan updates must meet the same requirements and document any change in floodplain management programs. The City of Carlsbad is a participant in the NFIP and has been a participant since June 14, 1977 May 12, 2026 Item #10 Page 317 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 19 NFIP Topic Source of Information Comments Insurance Summary How many NFIP policies are in the community? What is the total premium and coverage? State NFIP Coordinator or FEMA NFIP Specialist 284 Policies $152,501.00 Premiums $76,394,500 Coverage How many claims have been paid in the community? What is the total amount of paid claims? How many of the claims were for substantial damage? FEMA NFIP or Insurance Specialist 11 Paid Claims $149,376.74 Total Paid Unknown How many structures are exposed to flood risk within the community? Community Floodplain Administrator (FPA) Describe any areas of flood risk with limited NFIP policy coverage Community FPA and FEMA Insurance Specialist Staff Resources Is the Community FPA or NFIP Coordinator certified? Community FPA No Is floodplain management an auxiliary function? Community FPA Yes Provide an explanation of NFIP administration services (e.g., permit review, GIS, education or outreach, inspections, engineering capability) Community FPA Permit Review LOMC processing General information services GIS mapping What are the barriers to running an effective NFIP program in the community, if any? Community FPA Staff resources Compliance History Is the community in good standing with the NFIP? State NFIP Coordinator, FEMA NFIP Specialist, community records Yes Are there any outstanding compliance issues (i.e., current violations)? No When was the most recent Community Assistance Visit (CAV) or Community Assistance Contact (CAC)? 2012 Is a CAV or CAC scheduled or needed? No TABLE 7: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 4.3 DATA. May 12, 2026 Item #10 Page 318 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FOUR | Review Community Capabilities 20 NFIP Topic Source of Information Comments Regulation When did the community enter the NFIP? Community Status Book http://www.fema.gov/ national-flood-insurance- program/national-flood- insurance-program- community-status-book June 14, 1977 Are the FIRMs digital or paper? Community FPA Both Do floodplain development regulations meet or exceed FEMA or State minimum requirements? If so, in what ways? Community FPA Flood plain regulations currently meet FEMA and California State minimum requirements Provide an explanation of the permitting process. Community FPA, State, FEMA NFIP All projects shall comply with cities flood plain management regulations. Required findings for approval of projects include that the site is safe from flooding, does not cause or create hazards to adjacent properties, does not have adverse impact upstream or downstream and cumulative effect of projects does not increase water surface elevation. Typically, special permits are required for proposed construction within potential flood areas. Flood Insurance Manual http://www.fema.gov/ flood-insurance-manual Community FPA, FEMA CRS Coordinator, ISO representative CRS manual http:// www.fema.gov/library/ viewRecord.do?id=2434 Community Rating System (CRS) Does the community participate in CRS? Community FPA, State, FEMA NFIP No What is the community’s CRS Class Ranking? Flood Insurance Manual http://www.fema.gov/ flood-insurance-manual N/A What categories and activities provide CRS points and how can the class be improved? N/A N/A Does the plan include CRS planning requirements Community FPA, FEMA CRS Coordinator, ISO representative N/A CRS manual http:// www.fema.gov/library/ viewRecord.do?id=2434 TABLE 8: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 4.3 DATA CONTINUED. May 12, 2026 Item #10 Page 319 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 21 5. SECTION FIVE: Conduct a Risk Assessment The planning team conducts a risk assessment to determine the potential impacts of hazards to the people, economy, and built and natural environments of the community. The risk assessment provides the foundation for the rest of the mitigation planning process, which is focused on identifying and prioritizing actions to reduce risk to hazards. In addition to informing the mitigation strategy, the risk assessment also can be used to establish emergency preparedness and response priorities, for land use and comprehensive planning, and for decision making by elected officials, city and county departments, businesses, and organizations in the community. May 12, 2026 Item #10 Page 320 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 22 5.1. Hazards Summary The City of Carlsbad has identified one high ranking hazard within its service area: Wildfire. Additionally, the plan will address additional hazards, which could adversely impact system resiliency and disrupt continuity of operations within the city’s service area, including Earthquake, Climate Change, and Flooding. Hazard Location (Geographic Area Affected) Maximum Probable Extent (Magnitude/Strength) Probability of Future Events Overall Significance Ranking Avalanche Negligible Weak Unlikely Low Climate Change (Drought, Erosion, Extreme Cold, Extreme Heat, Sea Level Rise, Severe Winter Weather, Storm Surge) Significant Moderate Likely Medium Dam Failure Negligible Moderate Unlikely Low Earthquake Significant Severe Likely Medium Expansive Soils Negligible Weak Unlikely Low Flood Limited Moderate Likely Medium Hail Negligible Weak Unlikely Low Hurricane Negligible Moderate Unlikely Low Landslide Limited Moderate Occasional Low Lightning Limited Moderate Occasional Low Severe Wind Significant Moderate Likely Medium Subsidence Negligible Weak Unlikely Low Tornado Negligible Moderate Occasional Low Tsunami Limited Moderate Occasional Medium Wildfire Extensive Severe Highly Likely High TABLE 9: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 5.1 DATA. May 12, 2026 Item #10 Page 321 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 23 Definitions for Classifications Location (Geographic Area Affected) •Negligible: Less than 10 percent of planning area or isolated single-point occurrences •Limited: 10 to 25 percent of the planning area or limited single-point occurrences •Significant: 25 to 75 percent of planning area or frequent single-point occurrences •Extensive: 75 to 100 percent of planning area or consistent single-point occurrences Maximum Probable Extent (Magnitude/Strength based on historic events or future probability) •Weak: Limited classification on scientific scale, slow speed of onset or short duration of event, resulting in little to no damage •Moderate: Moderate classification on scientific scale, moderate speed of onset or moderate duration of event, resulting in some damage and loss of services for days •Severe: Severe classification on scientific scale, fast speed of onset or long duration of event, resulting in devastating damage and loss of services for weeks or months •Extreme: Extreme classification on scientific scale, immediate onset, or extended duration of event, resulting in catastrophic damage and uninhabitable conditions Hazard Scale / Index Weak Moderate Severe Extreme Drought Palmer Drought Severity Index3 -1.99 to +1.99 -2.00 to -2.99 -3.00 to -3.99 -4.00 and below Earthquake Modified Mercalli Scale4 I to IV V to VII VII IX to XII Richter Magnitude5 2, 3 4, 5 6 7, 8 Hurricane Wind Saffir-Simpson Hurricane Wind Scale6 1 2 3 4, 5 Tornado Fujita Tornado Damage Scale7 F0 F1, F2 F3 F4, F5 Probability of Future Events •Unlikely: Less than 1 percent probability of occurrence in the next year or a recurrence interval of greater than every 100 years. •Occasional: 1 to 10 percent probability of occurrence in the next year or a recurrence interval of 11 to 100 years. •Likely: 10 to 90 percent probability of occurrence in the next year or a recurrence interval of 1 to 10 years •Highly Likely: 90 to 100 percent probability of occurrence in the next year or a recurrence interval of less than 1 year. Overall Significance •Low: Two or more criteria fall in lower classifications, or the event has a minimal impact on the planning area. This rating is sometimes used for hazards with a minimal or unknown record of occurrences or for hazards with minimal mitigation potential. •Medium: The criteria fall mostly in the middle ranges of classifications and the event’s impacts on the planning area are noticeable but not devastating. This rating is sometimes used for hazards with a high extent rating but very low probability rating. •High: The criteria consistently fall in the high classifications and the event is likely/highly likely to occur with severe strength over a significant to extensive portion of the planning area. May 12, 2026 Item #10 Page 322 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 24 o Cumulative meteorological drought and wet conditions: http://ncdc.noaa.gov/ o Earthquake intensity and effect on population and structures: http://earthquake.usgs.gov o Earthquake magnitude as a logarithmic scale, measured by a seismograph: http://earthquake.usgs.gov o Hurricane rating based on sustained wind speed: http://nhc.noaa.gov o Tornado rating based on wind speed and associated damage: http://spc.noaa.gov Critical Facility Type Jurisdiction Name Counts Airport – Control Tower Carlsbad 1 Airport - Runway Carlsbad 2 Airport – Terminal - Small Carlsbad 1 Emergency - EOC Carlsbad 2 Emergency - FIRE Carlsbad 7 Emergency - POLICE Carlsbad 1 Water - Waste Carlsbad 4 5.1.1 Hazards Hazard Profile Descriptions The city’s Local Planning Group reviewed the hazards identified in the previous Hazard Mitigation Plan and evaluated each to see if they still posed a risk to the jurisdiction. In addition, the hazards listed in the FEMA Local Mitigation Planning Handbook were also reviewed to determine if they should be added to the list of hazards to include in the plan revision. The list of priority hazards was determined by the Local Hazard Mitigation Planning Team using jurisdictional- level hazard maps and data, historical records, vulnerability assessments, and input from subject matter experts. Based on this FEMA Standardized evaluation, in accordance with information covered within the HAZUS Data Evaluations, Vulnerability Assessments, Hazard Seminar Series, and input from Subject Matter Experts and the public, the City of Carlsbad has prioritized the following hazards into High, Medium, and Low rankings (in no order of prioritization within individual categories): High Medium Low • Wildfire • Climate Change (Drought, Erosion, Extreme Heat, Sea Level Rise, Severe Winter Weather, Storm Surge) • Avalanche • Earthquake • Dam Failure • Flood • Expansive Soils • Landslide • Hail • Severe Wind • Hurricane • Tsunami • Lightning • Subsidence • Tornado May 12, 2026 Item #10 Page 323 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 25 The final list of prioritized hazards for the City of Carlsbad were hazards with a High or Medium Overall Significance Rating which have the most impact to the planning area: 1. Wildfire: Carlsbad is susceptible to vegetation fires year-round. The proximity of vegetation (Wildland-Urban Interface) and climate contribute to this hazard. This threat is concentrated in Carlsbad’s eastern sectors and canyon areas. Carlsbad experienced significant wildland fires in 1996 and 2014 and was threatened by the Firestorms of 2003 and 2007. Wildland fires typically originate east of Carlsbad and are driven west by Santa Ana (strong easterly) winds. Exceptions to this can occur as was the case during the 2014 Poinsettia Fire. Wind driven fires can occur at any time of the year but are most likely, and most severe, during Santa Ana conditions. Wildland fires may either occur with advanced warnings or may be short notice events. Carlsbad has identified wildfire as a high potential hazard-related exposure/loss event to its jurisdiction. Hazard Profile and Problem Description A wildfire is an uncontrolled fire spreading through vegetation and exposing or possibly consuming structures and threatening lives. When wind-driven, they spread quickly. They can be naturally occurring, man-made or the result of technology failures. They are fueled by grasses, brush, trees and other structures. A Wildland Urban Interface (WUI) fire (often called Wildland, Vegetation, or Brush fires) are wildfires in a geographical area where structures and other human development meet or intermingle with wildland or vegetative fuels. Significant development in Carlsbad, and throughout San Diego County, is located along canyon ridges at the Wildland/Urban Interface. Areas that have experienced prolonged droughts or are excessively dry are at risk of wildfires. The risk can become severe or worse during high wind conditions. When these conditions present the National Weather Service issues a Red Flag Warning. People start most wildfires, usually the result of as debris burns, arson, or carelessness. Lightning strikes are the next leading cause of wildfires. Wildfire behavior is based on three primary factors: fuel, topography, and weather. The type, and amount of fuel, as well as its burning qualities and level of moisture affect wildfire potential and behavior. The continuity of fuels, expressed in both horizontal and vertical components is also a determinant of wildfire potential and behavior. Topography is important because it affects the movement of air (and thus the fire) over the ground surface. The slope and shape of terrain can change the speed at which the fire travels, and the ability of firefighters to reach and extinguish the fire. Weather affects the probability of wildfire and has a significant effect on its behavior. Temperature, humidity, and wind (both short and long term) affect the severity and duration of wildfires. San Diego County’s topography consists of semi-arid coastal plain and rolling highlands, which, when fueled by shrub overgrowth, occasional Santa Ana winds and high temperatures, creates an ever-present threat of wildland fire. Extreme weather conditions such as high temperature, low humidity, and/or winds of extraordinary force may cause an ordinary fire to expand into one of massive proportions. Under current climate conditions, the wildfire threat to property, lives, and ecosystems in the San Diego region is very high. With hotter temperatures and possibly fewer rainy days in the coming decades, vegetation could become drier. May 12, 2026 Item #10 Page 324 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 26 As a result, it is likely that San Diego region will see an increase in the frequency and intensity of fires, and the fire season could become longer and less predictable, making firefighting efforts more costly. Many consider the fire “season” now to be year-round, temporarily mitigated in the weeks following heavy winter rains. An increase in wildfire also affects public health. Fire-related injuries and death are likely to increase as wildfires occur more frequently. Wildfires can also be a significant contributor to air pollution. Wildfire smoke contains numerous toxic and hazardous pollutants that are dangerous to health and can worsen lung disease and other respiratory conditions. Regionally, wildland fires prompted five Proclaimed States of Emergency, and Urban/Intermix Fires prompted four Proclaimed States of Emergency in the County of San Diego between 1950-2014. In October of 2003, the second-worse wild-land fire in the history of San Diego County destroyed 332,766 acres of land, 3,239 structures, and 17 deaths at a cost of $450M. San Diego County’s worst wildfire occurred in October 2007. At the height of the firestorm there were seven fires burning within the County. The fires destroyed 369,000 acres (13% of the County), 2,670 structures, 239 vehicles, and two commercial properties. There were 10 civilian deaths, 23 civilian injuries, and 10 firefighter injuries. The cost of the fire exceeded $1.5 billion. During the May 2014 San Diego County firestorm, 14 wildfires burned near simultaneously. The second of those fires to erupt was the Poinsettia Fire in Carlsbad. Unlike many wildfires which start in rural areas of the county, the Poinsettia Fire started in the geographic center of the city. The Poinsettia Fire After Action Report, copies of which were provided to San Diego County OES and Cal OES, is filed in the City of Carlsbad EOC. Location and Extent The California Department of Forestry and Fire Protection (CAL FIRE) has mapped fire threat potential throughout California. CAL FIRE ranks fire threat according to the availability of fuel and the likelihood of an area burning. The rankings include little or no fire threat, moderate, high, and very high fire threat. Large amounts of open space and wildland make Carlsbad susceptible to brush fires year-round. The proximity of native vegetation and the climate of the region contribute to a moderate to high threat of wildfires in the city. May 12, 2026 Item #10 Page 325 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 27 May 12, 2026 Item #10 Page 326 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 28 Most of Carlsbad has only moderate fire threat; however, there is high and very high fire threat in the central and eastern portions of the city. Based upon this information, the Carlsbad Fire Department has developed response preplans for the most likely wildland fire threats to the city. These preplan areas include: Hosp Grove, Calavera Hills, Sunny Creek Road, Box Canyon, Dank Tank and Green Valley. May 12, 2026 Item #10 Page 327 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 29 May 12, 2026 Item #10 Page 328 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 30 2. Earthquake: Recent research suggests the Newport-Inglewood-Rose Canyon Fault, which runs offshore of Carlsbad, may can produce a 7.3 quake. Such a quake might pose an increased risk to life and property, due to structural damage, liquefaction, and/or tsunami. Other faults in the region include the Coronado Bank, La Nacion, Elsinore, Agua Caliente, and San Jacinto. Although modeling suggests Carlsbad is outside of the heavy shaking and damage zones associated with a 7.8 magnitude earthquake along the San Andres fault, the city should be prepared to provide mutual aid support to those directly impacted as described in the Southern California Catastrophic Earthquake Response Plan. Hazard Profile and Problem Description Carlsbad lies within a medium-low probabilistic peak ground acceleration zone. There are no active faults that run directly through Carlsbad and the California Geologic Survey does not include the City of Carlsbad on its list of cities affected by the Alquist-Priolo Earthquake Fault Zoning Act. Based on current science, local geologists do not agree earthquake swarms are an accurate indicator of pending large-scale earthquake activity. Evidence of damage should be investigated following any significant ground shaking activity in the region. Given the current technology, earthquakes are likely to be a no notice event. Liquefaction: During an earthquake, shaking of granular loose soil saturated with water can lead to liquefaction, a condition in which sediments below the water table temporarily lose strength during an earthquake and behave as a viscous liquid rather than a solid. This can weaken structural foundations. Historically, seismic shaking levels in the San Diego region, including in Carlsbad, have not been sufficient to trigger liquefaction, and as such, the city generally has a low liquefaction risk. However, there are areas of the city that have a higher risk of liquefaction due to the presence of hydric soils or soils that are often saturated or characteristic of wetlands. These areas are limited to the immediate vicinity of the Buena Vista, Agua Hedionda, and Batiquitos Lagoons. May 12, 2026 Item #10 Page 329 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 31 Evidence of liquefaction-related damage should be investigated following any significant ground shaking activity in the region. Like earthquakes, liquefaction is likely to be a no notice event. (See Appendix 2: Earthquake/Liquefaction). 3.Flooding: The San Diego Region is divided into 11 hydrologic units that flow from elevated regions in the east toward coastal lagoons, estuaries, or bays in the west. Carlsbad is located within the Carlsbad Hydrologic Unit (HU), also referred to as the Carlsbad Watershed Management Area, which is approximately 210 square miles in area, extending from the headwaters above Lake Wohlford in the east to the Pacific Ocean in the west, and from Vista and Oceanside in the north to Solana Beach, Encinitas, and the community of Rancho Santa Fe to the south. There are numerous important surface hydrologic features within the Carlsbad HU including four unique coastal lagoons, three major creeks, and two large water storage reservoirs. Hazard Profile and Problem Description Floods are typically described in terms of their statistical frequency. For example, a 100-year floodplain describes an area within which there is a one percent probability of a flood occurring in any given year. FEMA prepares Flood Insurance Rate Maps (FIRMs) that identify 100-year and 500-year flood zones. The potential flood hazard areas identified on the FIRM maps in Carlsbad include the entire coastline, creeks and tributaries, and lagoons. Most jurisdictions within San Diego County, including the City of Carlsbad, participate in the National Flood Insurance Program. Pursuant to the City of Carlsbad’s Local Coastal Plan and Carlsbad Municipal Code Title 21 (Zoning), development is restricted within 100-year floodplain areas. The City of Carlsbad flooding response procedures were presented to the City Council in 2015. Flooding may either occur with advanced warnings or be a short notice event. May 12, 2026 Item #10 Page 330 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 32 4. Climate Change (Drought, Erosion, Extreme Cold, Extreme Heat, Sea Level Rise, Severe Winter Weather, and Storm Surge): Climate change is not a hazard in and of itself, but rather is a factor that could affect the location, extent, probability of occurrence, and magnitude of climate-related hazards. Hazards related to the Climate Change hazard for the planning area are drought, erosion, extreme cold, extreme heat, sea level rise, severe winter weather and storm surge. Hazard Profile and Problem Description Higher temperatures, changes in precipitation, decreased water supplies accompanied by increased demand, increased risk of wildfire, a greater number of extremely hot days, the decline or loss of plant and animal species, and other impacts of climate change are expected to continue to affect Carlsbad. Numerous observations document the impacts of global climate change, including increases in global average air and ocean temperatures, the widespread melting of snow and ice, more intense heat waves, and rising global average sea level. Scientists have high confidence that global temperatures will continue to rise in the foreseeable future, largely due to anthropogenic greenhouse gas emissions. In addition to the physical impacts to the environment from increased temperatures, sea level rise, and more frequent extreme weather events, global climate change is predicted to continue to cause ecological and social impacts. Ecological impacts of climate change include greater risk of extinction of species, loss of species diversity, and alteration of global biogeochemical cycles, which play an essential role in nutrient distribution. The social impacts of climate change include impacts on agriculture, fisheries, energy, water resources, forestry, construction, insurance, financial services, tourism and recreation. According to the Intergovernmental Panel on Climate Change (IPCC), warming of the climate system is unequivocal, as is now evident from observations of increased global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level. The overwhelming majority of climate scientists agree that human activities, especially burning of fossil fuels, are responsible for most of the global warming observed. The Scripps Institution of Oceanography planning partners define Climate Change as any systematic change in the long-term statistics of climate elements and weather events (such as temperature, May 12, 2026 Item #10 Page 331 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 33 pressure, or winds) sustained over several decades or longer.91F91F91F Climate change refers to a change in the state of the climate that can be identified (e.g., by using statistical tests) by changes in the mean and/or the variability of its properties and that persists for an extended period, typically decades or longer. Climate change may be due to natural internal processes or external forcings such as modulations of the solar cycles, volcanic eruptions, and persistent anthropogenic changes in the composition of the atmosphere or in land use. Hazard Impact Coastal regions, such as Carlsbad, are vulnerable to oceanic flooding and the increasing occurrence of heat waves, whose temperatures are likely lower than in inland regions but rarely occurred historically. However, the health impacts of less intense heat waves on those living in the coastal zone may be more severe than elsewhere in the county because the population is less acclimated to the heat. Neighborhoods with less access to air conditioning and natural shading from vegetation are more susceptible to extreme heat. While the scope, severity, and pace of future climate change impacts are difficult to fully predict, it currently impacts emergency management planning and may aggravate the magnitude and frequency of emergencies. Climate change also has public health impacts. City residents, who are already more vulnerable to health challenges, are likely to be the most affected by climate change. Increases in extreme heat events can increase the risk of heat-related illness or death, or the worsening of chronic health conditions. Food scarcity and higher food prices from impacts to agriculture can cause increased hunger and reduced availability of nutrition. The increased frequency of natural disasters such as floods, droughts, wildfires, and storm surges can cause injury or death, illness, and increases or shifts in infectious diseases. Global climate change may cause ecological and social impacts. Ecological impacts may include greater risk to species and habitats. Social impacts may affect food, water, livability, recreation, tourism, development, turf and landscaping, flower and strawberry production, and insurance. Implementing appropriate warnings and communication or extremes such as heatwaves and/or smoke from wildfires and developing responses to prepare for these extremes is critically important, especially in the most vulnerable communities. To move forward, the region can assess current measures, such as cooling centers to take refuge from extreme heat, urban greening, residential and commercial structure fire resistance and community fire mitigation and escape routes. Other ways to prevent and mitigate further impacts include: • Testing and monitoring adaptation strategies. • Identifying thresholds to determine when it may be necessary to relocate or redesign infrastructure. • Continual improvement of extreme forecasts to allow longer lead times to prepare for the extremes. By assessing ongoing changes in risk—in addition to the traditional practice of risk assessment based on observed hazard events—this plan’s hazard mitigation strategies can better reduce risk from hazards expected going forward. In general, to prepare and mitigate impacts of climate change, develop integrated multi-agency, multi-jurisdiction approach that uses best information, best practices, and considers the needs of under-resourced, disadvantaged communities and individuals. May 12, 2026 Item #10 Page 332 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 34 5.1.2 Hazard Omission Rationale Hazard Description Reason for Exclusion Avalanche A mass of snow moving down a slope. There are two basic elements to a slide: A steep, snow-covered slope and a trigger Snowfall in city foothills is negligible; poses no threat compared to other hazards Dam Failure A dam failure can take several forms, including a collapse of, or breach in, the structure. While most dams have storage volumes small enough that failures have few or no repercussions, dams storing large amounts can cause significant flooding downstream. Historically, only two major dam failures have been recorded in San Diego County: The Hatfield Flood of 1916 caused the failure of the Sweetwater and Lower Otay Dams. Expansive Soils Expansive soils shrink when dry and swell when wet. This movement can exert enough pressure to crack sidewalks, driveways, basement floors, pipelines and even foundations Presents a minor threat to limited portions of the city Hail Can occur during thunderstorms that bring heavy rains, strong winds, hail, lightning, and tornadoes Occurs during severe thunderstorms; most likely to occur in the central and southern states; no historical record of this hazard in the region. Hurricane Hurricanes, tropical storms, nor’easters, and typhoons, also classified as cyclones, include any closed circulation developing around a low-pressure center in which the winds rotate counterclockwise in the northern hemisphere (or clockwise in the Southern Hemisphere) and whose diameter averages 10 to 30 miles across. A tropical cyclone refers to any such circulation that develops over tropical waters. Prevailing winds take hurricane tracks westward off of Northern Baja and the few that may drift further north dissipate in the colder offshore waters and become rainmakers rather than causing destructive winds. Lightning Lightning is defined by the NWS as any and all of the various forms of visible electrical discharge caused by thunderstorms. The US National Centers for Environmental Information reports that the County averages only three days of lightning a year, making it a minor threat compared to other hazards. Severe Wind Severe wind is commonly associated with severe thunderstorm winds, severe winter storms (exceeding 58 mph) and tornadoes. Maximum sustained wind speed recorded in the region is less than 60 miles per hour and would not be expected to cause major damage or injury. May 12, 2026 Item #10 Page 333 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 35 Subsidence Occurs when large amounts of ground water have been withdrawn from certain types of rocks, such as fine-grained sediments. The rock compacts because the water is partly responsible for holding the ground up. When the water is withdrawn, the rocks fall in on themselves. Soils in the County are mostly granitic. Presents a minor threat to limited parts of the county. No historical record of this hazard in the region. Tornado A tornado is a violent windstorm characterized by a twisting, funnel-shaped cloud. It is spawned by a thunderstorm (or sometimes because of a hurricane) and produced when cool air overrides a layer of warm air, forcing the warm air to rise rapidly. The damage from a tornado is a result of the high wind velocity and wind- blown debris. Less than one tornado event occurs in the entire State of California in any given year; poses very minor threat compared to other hazards. No historical record of this hazard in the region. Tsunami Tsunamis are a series of large waves of extremely long wavelength and period usually generated by a violent, impulsive undersea disturbance or activity near the coast or in the ocean. When a sudden displacement of a large volume of water occurs (or if the sea floor is suddenly raised or dropped by an earthquake) big tsunami waves can be formed. Historic seismic shaking levels in the San Diego region, including in Carlsbad, have not been sufficient to trigger tsunamis, and as such, the city generally has a low tsunami risk. May 12, 2026 Item #10 Page 334 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 36 5.2 Potential Hazard Exposure and Loss Estimates The City of Carlsbad reviewed a set of jurisdictional-level hazard maps and data provided by the County of San Diego, including detailed critical facility information and localized potential hazard exposure/loss estimates related to residential, commercial, and critical asset/facilities to identify the top hazards threatening the city. Potential hazard exposure/loss estimates are summarized in Table 5.2. According to the 2022 FEMA Repetitive Loss Summary Report, City of Carlsbad has one Repetitive Loss property, and zero Severe Repetitive Loss properties. The Repetitive Loss property is nonresidential. TABLE 5.2: SUMMARY OF POTENTIAL HAZARD-RELATED EXPOSURE/LOSS IN CITY OF CARLSBAD. Residential Commercial Critical Facilities Hazard Type Exposed Population- 2022 Number of Residential Buildings - 2022 Potential Exposure Loss for Residential Buildings- 2022 Number of Commercial Buildings- 2022 Potential Exposure Loss for Commercial Buildings- 2022 Number of Critical Facilities- 2022 Potential Exposure for Critical Facilities- 2022 Coastal Storm 341 16 6,217,600 0 0 0 0 Sea Level Rise Coastal Flooding 622 21 8,160,600 4 1,209,400 10 63,690,000 Mean Higher High Water 70 1 388,600 0 0 4 24,780,000 Dam Failure 1,258 523 203,237,800 24 7,256,400 5 29,728,000 Earthquake (Loss) (Annualized Loss - Includes shaking, liquefaction and landslide components) 1067 6314 3,079.694,441 377 165,506,390 Info not provided in county table Info not provided in county table 100 Year Info not provided in county table Info not provided in county table Info not provided in county table Info not provided in county table Info not provided in county table Info not provided in county table Info not provided in county table 500 Year 19,092 4,538 1,763,466,800 352 106,427,200 4 143,152,000 Floods (Loss) 100 Year 2,497 619 240,543,400 15 4,535,250 19 123,880,000 500 Year 2,497 619 240,543,400 15 4,535,250 19 123,880,000 May 12, 2026 Item #10 Page 335 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 37 Residential Commercial Critical Facilities Hazard Type Exposed Population- 2022 Number of Residential Buildings - 2022 Potential Exposure Loss for Residential Buildings - 2022 Number of Commercial Buildings- 2022 Potential Exposure Loss for Commercial Buildings - 2022 Number of Critical Facilities- 2022 Potential Exposure for Critical Facilities- 2022 Wildfire/Structure Fire High Fire Hazard 24,365 8,513 3,307,300,500 238 71,959,300 19 682,173,700 Very High Fire Hazard 19,479 5,075 1,972,145,000 561 169,618,350 17 383,777,700 Rain-Induced Landslide High Risk 2,163 24 9,324,000 1 302,350 0 0 Moderate Risk 0 0 0 0 0 0 0 Tsunami 4,259 114 44,300,400 1 302,350 9 60,030,000 May 12, 2026 Item #10 Page 336 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 38 5.3 Development Trends Development Since 2018 Plan City of Carlsbad Community Development Department tracks total building permits issued from July 1, 2017, to June 30, 2022. A summary of this development is shown in Table XXX. The development in the identified hazard areas, including the 1% annual chance floodplains and high wildfire risk areas, were completed in accordance with all current and applicable development codes and standards and should be adequately protected. Thus, with the exception of more people living in the area potentially exposed to natural hazards, this growth should not cause a significant change in City’s vulnerability to identify priority hazards. The City issued permits for more than 1,300 new dwelling units and over 2.6 million square feet of non- residential (e.g., commercial and industrial) space. By fiscal year and quadrant, this new construction breaks down as follows: 5.3 Table: City of Carlsbad Development July 1, 201, to June 30, 2022 Dwellings and Non-residential Square Permitted1 Fiscal year Dwelling units permitted Percent of units by quadrant Non-residential square feet permitted Percent of units by quadrant NW NE SW SE NW NE SW SE 2017-2018 341 31% 62% 3% 4% 1,643,467 7% 39% 4% 50% 2018-2019 375 34% 41% 5% 21% 315,194 46% 28% 1% 25% 2019-2020 242 34% 12% 25% 28% 372,455 21% 71% 2% 6% 2020-2021 251 48% 16% 28% 8% 216,834 5% 83% 0% 11% 2021-2022 111 65% 5% 14% 16% 107,935 91% 0% 0% 9% Total units 1,320 39% 33% 13% 15% 2,655,885 17% 44% 3% 36% 1Source: Growth Management Plan Monitoring Reports for Fiscal Years 2017-2018 through 2020-2021; Development Monitoring Reports for May 2022 and October 2022. The city uses quadrants to identify four major sections of the city from its major arterial roads, El Camino Real and Palomar Airport Road being the dividing intersections for each quadrant. Figure XXX identifies those areas. May 12, 2026 Item #10 Page 337 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 39 May 12, 2026 Item #10 Page 338 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION FIVE | Conduct a Risk Assessment 40 The permitted commercial and industrial construction noted in the table occurred or is occurring in existing developed areas, such as business and industrial parks. Similarly, construction of the more than 1,300 new homes occurred or is underway as infill development dispersed throughout the city in older neighborhoods, previously approved master plans and in Carlsbad’s downtown. In Section 5.1, Hazards Summary, wildfire is the only hazard identified with a “high” significance ranking due in part to the Carlsbad’s large amount of natural open space, largely occurring in the hills and valleys in the eastern third of the city. Many of these areas and adjacent developed lands are within the Very High or High Fire Hazard Severity Zones as identified by the California Department of Forestry and Fire Protection. As the table above demonstrates, most (72 percent) residential construction since 2017- 2018 has occurred in the northern half of the city, with slightly more development in the northwest (39 percent) than the northeast (33 percent). The two quadrants with the greatest non-residential construction since 2017- 2018 include the northeast (44 percent) and the southeast (36 percent). While development has continued to occur in areas of the city assessed to be higher fire hazard risk, three factors help to mitigate vulnerability: lower population density of non-residential construction types, implementation of modern codes and development standards, and development of infill locations. The non-residential development is reported in terms of square footage, which is disproportionately high when compared to number of employees in business park/industrial park settings typical of Carlsbad. As such, high square footage is not synonymous with high population and/or at-risk populations. Secondly, the development occurring in the past five years has been evaluated for consistency with modern city codes, standards and land use regulations, including the Growth Management Plan, which requires all necessary infrastructure (roads, utilities, public safety facilities, etc.), to be installed concurrent with need. The guarantee of facilities ensures that both public safety infrastructure and service capacity grow to meet the needs of additional areas and populations and maintain desired levels of service. Finally, as previously mentioned, the growth that is occurring within the city is largely infill, taking place on vacant or underdeveloped lots surrounded by existing buildings and infrastructure. While development is occurring within areas that have been assessed as higher fire risk, it does not represent a trend of creating additional wildland-urban interface or development in additional risk areas. Future Development Looking to the future, residential and non-residential development will continue to be characterized as infill, whether in the city’s downtown, master plan areas or business parks. A notable exception is the city’s Sunny Creek area east of El Camino Real and north of Faraday Avenue. While much of this area is set aside as permanent open space, some areas are vacant and remain developable. Some developable portions of Sunny Creek are in the identified fire hazard zones. Any development applications submitted in the Sunny Creek area will be evaluated by city staff for consistency with all applicable codes, regulations, and standards to ensure the necessary infrastructure is in place to serve and protect future homes and businesses. May 12, 2026 Item #10 Page 339 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SIX | Develop a Mitigation Strategy 41 6.SECTION SIX: Develop a Mitigation Strategy The mitigation strategy serves as the long-term blueprint for reducing potential losses identified in the risk assessment. The mitigation strategy describes how the community will accomplish the overall purpose, or mission, of the planning process. The mitigation strategy is made up of three main required components: mitigation goals, mitigation actions, and an action plan for implementation. These provide the framework to identify, prioritize, and implement actions to reduce risk to hazards. Mitigation goals are general guidelines that explain what the community wants to achieve with the plan They are usually broad policy-type statements that are long-term, and they represent visions for reducing or avoiding losses from the identified hazards Mitigation actions are specific projects and activities that help achieve the goals. The action plan describes how the mitigation actions will be implemented, including how those actions will be prioritized, administered, and incorporated into the community’s existing planning mechanisms. In a multi-jurisdictional plan, each jurisdiction must have an action plan specific to that jurisdiction and its vulnerabilities. Although not required, some communities choose to develop objectives to help define or organize mitigation actions. Objectives are broader than specific actions, but are measurable, unlike goals. Objectives connect goals with the actual mitigation actions 6.1. Mitigation Action Evaluation Use this worksheet to help evaluate and prioritize each mitigation action being considered by the planning team. For each action, evaluate the potential benefits and/or likelihood of successful implementation for the criteria defined below. Rank each of the criteria with a -1, 0 or 1 using the following scale: •1 = Highly effective or feasible •0 = Neutral •-1 = Ineffective or not feasible Example Evaluation Criteria: •Life Safety – How effective will the action be at protecting lives and preventing injuries? •Property Protection – How significant will the action be at eliminating or reducing damage to structures and infrastructure? •Technical – Is the mitigation action technically feasible? Is it a long-term solution? Eliminate actions that, from a technical standpoint, will not meet the goals. •Political – Is there overall public support for the mitigation action? Is there the political will to support it? •Legal – Does the community have the authority to implement the action? •Environmental – What are the potential environmental impacts of the action? Will it comply with environmental regulations? •Social – Will the proposed action adversely affect one segment of the population? Will the action disrupt established neighborhoods, break up voting districts, or cause the relocation of lower income people? May 12, 2026 Item #10 Page 340 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SIX | Develop a Mitigation Strategy 42 • Administrative – Does the community have the personnel and administrative capabilities to implement the action and maintain it or will outside help be necessary? • Local Champion – Is there a strong advocate for the action or project among local departments and agencies that will support the action’s implementation? • Other Community Objectives – Does the action advance other community objectives, such as capital improvements, economic development, environmental quality, or open space preservation? Does it support the policies of the comprehensive plan? Mitigation Action Life Safety Property Protection Technical Political Legal Environmental Social Administrative Local Champion Other Community Objectives Total Score Structure and Infrastructure Projects GOAL 1: Reduce the possibility of damage and losses to existing assets, including people and critical infrastructure, due to structure fire/wildland fire Develop a comprehensive approach to reducing the possibility of damage and losses due to structure fire/wildland fire 1 1 1 1 1 1 1 1 1 1 10 Coordinate with and support existing efforts to mitigate structural fire/wildland fire 1 1 1 1 1 1 1 1 1 1 10 Maintain GIS mapping to best reflect potential vulnerability of assets from structural fire/wildland fire 1 1 1 1 1 0 0 1 0 1 7 Maintain adequate emergency response capability 1 1 0 1 1 0 0 1 1 1 7 TOTAL SCORE 4 4 3 4 4 2 2 4 3 4 34 Mitigation Action Life Safety Property Protection Technical Political Legal Environmental Social Administrative Local Champion Other Community Objectives Total Score Structure and Infrastructure Projects (continued) GOAL 2: Reduce the possibility of damage and losses to existing assets, including people and critical infrastructure, due to earthquakes/liquefaction Develop a comprehensive approach to reducing the possibility of damage and losses due to earthquakes 1 1 1 1 1 0 1 1 0 1 8 Protect existing assets with the highest relative vulnerability to the effects of earthquakes 1 1 0 1 1 1 0 1 0 0 6 Coordinate with and support existing efforts to mitigate earthquake hazard 1 1 1 1 1 0 0 1 0 1 7 Community outreach 1 0 1 1 0 0 1 1 0 0 5 TOTAL SCORE 4 3 3 4 3 1 2 4 0 2 26 GOAL 3: Reduce the possibility of damage and losses to existing assets, including people and critical infrastructure, due to hazardous materials Develop a comprehensive approach to reducing the possibility of damage and losses due to hazardous materials- related hazards 1 0 1 1 1 1 1 1 0 1 8 Increase awareness and knowledge of hazardous materials mitigation principles and practice among local officials 1 0 0 1 1 0 1 1 0 1 6 TOTAL SCORE 2 0 1 2 2 1 2 2 0 2 14 May 12, 2026 Item #10 Page 341 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SIX | Develop a Mitigation Strategy 43 Mitigation Action Life Safety Property Protection Technical Political Legal Environmental Social Administrative Local Champion Other Community Objectives Total Score Structure and Infrastructure Projects (continued) GOAL 4: Reduce the possibility of damage and losses to existing assets, including people and critical infrastructure, due to severe winter storms/flooding Develop a comprehensive approach to reduction the possibility of damage and losses due to severe winter storms/flooding 1 1 1 1 1 1 0 1 0 1 8 Protect existing assets with the highest relative vulnerability to the effects of floods (100-year floodplain) 1 1 1 1 1 1 1 1 0 1 9 Protect floodplains from inappropriate development 1 1 1 1 1 1 1 1 0 1 9 TOTAL SCORE 3 3 3 3 3 3 2 3 0 3 26 GOAL 5: Reduce the possibility of damage and losses to existing assets, including people and critical infrastructure, due to climate change Develop a comprehensive approach to reducing the possibility of damage and losses due to climate change 1 1 1 1 1 1 1 1 1 1 10 Increase awareness and knowledge of climate change among senior city leadership and/or local officials 1 0 1 1 1 1 1 1 1 1 9 Increase public awareness and knowledge of damages and losses due to climate change through community awareness 1 1 0 1 1 0 1 1 1 1 8 TOTAL SCORE 1 1 0 1 1 0 1 1 1 1 27 Mitigation Action Life Safety Property Protection Technical Political Legal Environmental Social Administrative Local Champion Other Community Objectives Total Score Structure and Infrastructure Projects (continued) GOAL 6: Reduce the possibility of damage and losses to existing assets, including people and critical infrastructure, due to dam failure Develop a comprehensive approach to reduction the possibility of damage and losses due to dam failure 1 1 1 1 1 1 0 1 0 1 8 Coordinate with and support existing efforts to mitigate dam failure (e.g., US Army Corps of Engineers, US Bureau of Reclamation, California Department of Water Resources) 0 0 1 1 1 1 1 1 1 1 8 Protect inundation areas from inappropriate development 1 1 1 1 1 1 1 1 0 1 9 TOTAL SCORE 2 2 3 3 3 3 2 3 1 3 25 GOAL 7: Reduce the possibility of damage and losses to existing assets, including people and critical infrastructure, due to IT vulnerabilities/cyber insecurities Develop a comprehensive approach to reducing the possibility of damage and losses due to IT vulnerabilities/cyber insecurities 0 0 1 1 1 0 0 1 0 0 1 Increase awareness and knowledge of IT vulnerabilities/cyber insecurities among senior city leadership and/or local officials 0 0 1 1 1 0 0 1 1 1 6 Prepare cyber security plans and policy 0 0 1 1 1 0 0 1 0 1 5 TOTAL SCORE 0 0 3 3 3 0 0 3 1 2 12 May 12, 2026 Item #10 Page 342 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SIX | Develop a Mitigation Strategy 44 Mitigation Action Life Safety Property Protection Technical Political Legal Environmental Social Administrative Local Champion Other Community Objectives Total Score Natural Systems Protection The City of Carlsbad has no mitigation actions related to natural systems protection Mitigation Action Life Safety Property Protection Technical Political Legal Environmental Social Administrative Local Champion Other Community Objectives Total Score Education and Awareness Programs GOAL 8: Increase public understanding and support for effective hazard mitigation Educate the public to increase awareness of hazards and opportunities for mitigation actions 1 0 0 1 1 1 0 1 0 1 6 Promote partnerships between the state, counties, and local jurisdictions and agencies to identify, prioritize, and implement mitigation actions 1 0 0 1 1 1 1 1 1 1 8 Work with the Chamber of Commerce, businesses, and other local agencies to promote hazard mitigation in the local community 1 1 0 1 1 1 1 1 1 1 9 TOTAL SCORE 3 1 0 3 3 3 2 3 2 3 23 GOAL 9: Build and maintain local capacity and commitment to hazard mitigation goals Increase awareness and knowledge of hazard mitigation principles and practice among local officials 1 1 1 1 1 1 1 1 0 1 9 Implement actions associated with hazard mitigation plan 1 0 0 0 1 1 0 1 0 1 5 Continue GIS mapping of potential hazard areas 1 1 1 0 1 1 0 1 0 1 7 TOTAL SCORE 3 2 2 1 3 3 1 3 0 3 21 Mitigation Action Life Safety Property Protection Technical Political Legal Environmental Social Administrative Local Champion Other Community Objectives Total Score Education and Awareness Programs (continued) GOAL 10: Increase situational awareness of MJHMP, natural, technological, and human causes hazards identified in the Emergency Operations Plan (EOP) Integrate MJHMP into other city planning documents 1 1 1 1 1 1 1 1 0 1 9 Include at CEMAT, CERT, and Ready Carlsbad Business Alliance (RCBA) elements of MJHMP and EOP as regular part of agenda discussion 1 1 1 0 0 1 1 1 1 1 8 Share EOC operational environment and situational awareness displays utilizing technology such as Microsoft Teams and Zoom 1 1 1 0 1 1 0 1 0 1 7 TOTAL SCORE 3 3 3 1 2 3 2 3 1 3 24 Mitigation Action Life Safety Property Protection Technical Political Legal Environmental Social Administrative Local Champion Other Community Objectives Total Score Local Plans and Regulations GOAL 11: Update Carlsbad's General Plan to support hazard mitigation efforts Address climate change adaptation and resiliency strategies 1 0 1 1 1 1 1 1 1 1 9 Address in the housing element and safety element of the General Plan a risk assessment associated with hazards which may require enhanced evacuation strategies 1 0 1 1 1 0 1 1 1 1 8 TOTAL SCORE 2 0 2 2 2 1 2 2 2 2 17 TABLE 10: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 6.1 DATA. May 12, 2026 Item #10 Page 343 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SIX | Develop a Mitigation Strategy 45 6.1.1. Financial Identify whether your jurisdiction has access to or is eligible to use the following funding resources for hazard mitigation: Funding Resource Access/ Eligibility (Yes/No) Has the funding resource been used in past and for what type of activities? Could the resource be used to fund future mitigation actions? Community Development Block Grants (CDBG) Yes Previous mitigation measures and available for future mitigation actions if needed Capital improvements project funding Yes Previous mitigation measures and available for future mitigation actions if needed Authority to levy taxes for specific purposes Yes Previous mitigation measures and available for future mitigation actions if needed Fees for water, sewer, gas, or electric service Yes Previous mitigation measures and available for future mitigation actions if needed Impact fees for homebuyers or developers for new developments/homes Yes Previous mitigation measures and available for future mitigation actions if needed Incur debt through general obligation bonds Yes Previous mitigation measures and available for future mitigation actions if needed Incur debt through special tax and revenue bonds Yes Previous mitigation measures and available for future mitigation actions if needed Incur debt through private activity bonds Yes Previous mitigation measures and available for future mitigation actions if needed Capital improvements project funding Yes Previous mitigation measures and available for future mitigation actions if needed Authority to levy taxes for specific purposes Yes Previous mitigation measures and available for future mitigation actions if needed How can these capabilities be expanded and improved to reduce risk? The City may update existing policies, plans, and programs, such as the Capital Improvement Program (CIP). Updates may be to incorporate hazard information and to include hazard mitigation actions and climate adaptation strategies that relate to infrastructure systems resiliency associated with the water and wastewater systems. Approved projects related to hazard mitigation, including the CIP, are available on the city’s webpage. (Projects in the Works | Carlsbad, CA (carlsbadca.gov) Also, capital investments and improvements related to seismic retrofits, cooling center upgrades, water supply systems, and wastewater treatment plan (WWTP) upgrades may be added to outreach materials as they are related to hazard mitigation. Additionally, given the prioritization of flooding mitigation projects, the city may apply for HMGP grants to fund implementation costs associated with key CIP projects and related projects in the city’s mitigation strategy. These fiscal capabilities may be supported by city staff or augmented with consultant staff. TABLE 11: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 4.1 DATA CONTINUED. May 12, 2026 Item #10 Page 344 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SIX | Develop a Mitigation Strategy 46 6.2. Mitigation Action Implementation A mitigation action is a specific action, project, activity, or process taken to reduce or eliminate long- term risk to people and property from hazards and their impacts. Implementing mitigation actions helps achieve the plan’s mission and goals. The actions to reduce vulnerability to threats and hazards form the core of the plan and are a key outcome of the planning process. This annex details the following mitigation action implementations: May 12, 2026 Item #10 Page 345 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SI X | De v e l o p a Mi t i g a t i o n St r a t e g y 47 6. 2 . 1 Ha z a r d Mi t i g a t i o n Ac t i o n Pl a n Ac t i o n It e m s Ha z a r d s Go a l s Pr i o r i t y Le a d Ag e n c y / Su p p o r t i n g De p a r t m e n t s Es t i m a t e d Co s t s & Po s s i b l e Fu n d i n g Ti m e l i n e Id e a s fo r In t e g r a t i o n Be n e f i t s : (L o s s e s Avo i d e d ) Su p p o r t an d ma i n t a i n a co m p r e h e n s i v e a p p r o a c h t o re d u c e t h e p o s s i b i l i t y o f d a m a g e an d l o s s e s d u e t o s t r u c t u r e fi r e / w i l d l a n d f i r e St r u c t u r e & Wi l d l a n d Fi r e 1 Hi g h Ca r l s b a d Fi r e Pr e v e n t i o n Ca r l s b a d Co m m u n i t y De v e l o p m e n t Ca r l s b a d Fi r e De p a r t m e n t Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e a d h e r e n c e t o c u r r e n t s t a t e an d fe d e r a l co d e s fo r de v e l o p m e n t an d o p e n s p a c e ar e a s a n d en s u r e Ci t y p l a n s a r e u p d a t e d t h r o u g h a co m p r e h e n s i v e a p p r o a c h . Min i m i z e lo s s of li f e , st r u c t u r e s an d pr o t e c t e d en v i r o n m e n t a l s p a c e . Su p p o r t ex i s t i n g ef f o r t s to mi t i g a t e st r u c t u r a l f i r e / w i l d l a n d f i r e St r u c t u r e & Wi l d l a n d Fi r e 1 Hi g h Ca r l s b a d Fi r e Pr e v e n t i o n Ca r l s b a d Fi r e De p a r t m e n t Ca r l s b a d Em e r g e n c y S e r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e a d h e r e n c e t o c u r r e n t s t a t e an d fe d e r a l co d e s fo r de v e l o p m e n t an d o p e n s p a c e ar e a s a n d en s u r e Ci t y p l a n s a r e u p d a t e d t h r o u g h a co m p r e h e n s i v e a p p r o a c h . Min i m i z e lo s s of li f e , s t r u c t u r e s a n d pr o t e c t e d en v i r o n m e n t a l s p a c e . Ma i n t a i n G I S m a p p i n g ca p a b i l i t i e s to re f l e c t p o t e n t i a l vu l n e r a b i l i t y of as s e t s fr o m s t r u c t u r a l fi r e / w i l d l a n d f i r e St r u c t u r e & Wi l d l a n d Fi r e 1 Hi g h Ca r l s b a d GI S Ca r l s b a d Em e r g e n c y S e r v i c e s No fu n d i n g re q u i r e d 20 2 3 - 20 2 8 An on g o i n g e f f o r t o f C a r l s b a d Em e r g e n c y Se r v i c e s , Ca r l s b a d Fi r e De p a r t m e n t an d Ca r l s b a d GI S is to en s u r e c i t y r e a d i n e s s w i t h c u r r e n t GI S m a p p i n g . Su p p o r t C i t y ’ s r e a d i n e s s t o re s p o n d to an d re c o v e r fr o m a di s a s t e r or em e r g e n c y . Ma i n t a i n em e r g e n c y re s p o n s e ca p a b i l i t i e s St r u c t u r e & Wi l d l a n d Fi r e 1 Hi g h Ca r l s b a d Fi r e De p a r t m e n t Ca r l s b a d Em e r g e n c y S e r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e em e r g e n c y pl a n s , an n e x e s an d a p p e n d i c e s a r e u p d a t e d t o cu r r e n t s t a t e , co u n t y , an d l o c a l re q u i r e m e n t s . Pr o v i d e fo r on g o i n g re v i e w p r o c e s s t o e n s u r e em e r g e n c y r e s p o n s e c a p a b i l i t i e s . En s u r e Ci t y ’ s re a d i n e s s to re s p o n d to a n d r e c o v e r f r o m a d i s a s t e r o r em e r g e n c y . May 12, 2026 Item #10 Page 346 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SI X | De v e l o p a Mi t i g a t i o n St r a t e g y 48 Ac t i o n It e m s Ha z a r d s Go a l s Pr i o r i t y Le a d Ag e n c y / Su p p o r t i n g De p a r t m e n t s Es t i m a t e d Co s t s & Po s s i b l e Fu n d i n g Ti m e l i n e Id e a s fo r In t e g r a t i o n Be n e f i t s : (L o s s e s Av o i d e d ) Min i m i z e lo s s of li f e , s t r u c t u r e s a n d pr o t e c t e d e n v i r o n m e n t a l s p a c e . Su p p o r t an d ma i n t a i n a co m p r e h e n s i v e a p p r o a c h t o r e d u c e th e po s s i b i l i t y o f d a m a g e a n d lo s s e s d u e t o e a r t h q u a k e s Ea r t h q u a k e 2 Me d i u m Ca r l s b a d Fi r e Pr e v e n t i o n Ca r l s b a d C o m m u n i t y De v e l o p m e n t Ca r l s b a d Fi r e De p a r t m e n t Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e a d h e r e n c e t o c u r r e n t s t a t e an d f e d e r a l c o d e s f o r n e w co n s t r u c t i o n a n d en s u r e Ci t y pl a n s ar e u p d a t e d t h r o u g h a co m p r e h e n s i v e a p p r o a c h . Min i m i z e lo s s of li f e , st r u c t u r e s an d pr o t e c t e d en v i r o n m e n t a l s p a c e . Pr o t e c t ex i s t i n g as s e t s wi t h th e hi g h e s t r e l a t i v e v u l n e r a b i l i t y t o t h e ef f e c t s o f ea r t h q u a k e s Ea r t h q u a k e 2 Me d i u m Ca r l s b a d E m e r g e n c y Se r v i c e s Ca r l s b a d Fl e e t & Fa c i l i t i e s Ca r l s b a d C o n s t r u c t i o n Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e ad h e r e n c e to cu r r e n t st a t e an d f e d e r a l c o d e s f o r n e w de v e l o p m e n t a n d r e t r o f i t st r u c t u r e s a n d en s u r e C i t y p l a n s ar e u p d a t e d t h r o u g h a co m p r e h e n s i v e a p p r o a c h . Min i m i z e lo s s of li f e an d s t r u c t u r e s sp a c e . Su p p o r t ex i s t i n g ef f o r t s to mi t i g a t e ea r t h q u a k e h a z a r d s Ea r t h q u a k e 2 Me d i u m Ca r l s b a d E m e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e a d h e r e n c e t o c u r r e n t s t a t e an d fe d e r a l co d e s fo r de v e l o p m e n t an d o p e n s p a c e ar e a s a n d en s u r e Ci t y p l a n s a r e u p d a t e d t h o u g h a co m p r e h e n s i v e a p p r o a c h . Min i m i z e lo s s of li f e , s t r u c t u r e s a n d pr o t e c t e d en v i r o n m e n t a l sp a c e . Su p p o r t co m m u n i t y ou t r e a c h ef f o r t s r e l a t e d t o h a z a r d m i t i g a t i o n Ea r t h q u a k e 2 Me d i u m Ca r l s b a d E m e r g e n c y Se r v i c e s Ca r l s b a d Co m m u n i c a t i o n & En g a g e m e n t Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Th i s a c t i o n w i l l b u i l d u p o n Em e r g e n c y S e r v i c e s c o m m u n i t y ou t r e a c h a n d e d u c a t i o n e f f o r t s re l a t e d to ov e r a l l pr e p a r e d n e s s an d re s p o n s e t o p o t e n t i a l e a r t h q u a k e s . May 12, 2026 Item #10 Page 347 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SI X | De v e l o p a Mi t i g a t i o n St r a t e g y 49 Ac t i o n It e m s Ha z a r d s Go a l s Pr i o r i t y Le a d Ag e n c y / Su p p o r t i n g De p a r t m e n t s Es t i m a t e d Co s t s & Po s s i b l e Fu n d i n g Ti m e l i ne Id e a s fo r In t e g r a t i o n Be n e f i t s : (L o s s e s Av o i d e d ) Su p p o r t an d ma i n t a i n a co m p r e h e n s i v e a p p r o a c h t o re d u c i n g t h e p o s s i b i l i t y o f d a m a g e an d l o s s e s d u e t o h a z a r d o u s ma t e r i a l s -re l a t e d h a z a r d s Wi l d f i r e , Ma n m a d e 3 Lo w Ca r l s b a d Fi r e De p a r t m e n t Ca r l s b a d E m e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e ad h e r e n c e t o c u r r e n t s t a t e an d c o u n t y r e q u i r e m e n t s f o r t h e re p o r t i n g an d st o r a g e of ha z a r d o u s m a t e r i a l s . E n s u r e C i t y pl a n s a r e u p d a t e d wi t h cu r r e n t re q u i r e m e n t s . Min i m i z e lo s s of li f e , s t r u c t u r e s an d p r o t e c t e d e n v i r o n m e n t a l sp a c e . Su p p o r t o n g o i n g a w a r e n e s s o f ha z a r d o u s m a t e r i a l s m i t i g a t i o n pr i n c i p l e s an d pr a c t i c e am o n g lo c a l of f i c i a l s Wi l d f i r e , Ma n m a d e 3 Lo w Ca r l s b a d Fi r e De p a r t m e n t Ca r l s b a d E m e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Pr o v i d e ro u t i n e pr e s e n t a t i o n s to lo c a l of f i c i a l s o n h a z a r d o u s ma t e r i a l s m i t i g a t i o n e f f o r t s . Su p p o r t an d ma i n t a i n a co m p r e h e n s i v e a p p r o a c h t o r e d u c e th e p o s s i b i l i t y o f d a m a g e an d lo s s e s du e to se v e r e wi n t e r st o r m s / f l o o d i n g Fl o o d i n g , Cl i m a t e C h a n g e (Sev e r e Win t e r Wea t h e r , a n d Sto r m Sur g e ) 4 Me d i u m Ca r l s b a d Pu b l i c Wo r k s Ca r l s b a d C o m m u n i t y De v e l o p m e n t Ca r l s b a d E m e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e C i t y c u r r e n t a n d f u t u r e in f r a s t r u c t u r e a n d d e v e l o p m e n t go a l s an d pl a n s re f l e c t cu r r e n t st a t e a n d c o u n t y r e g u l a t i o n s , re q u i r e m e n t s , an d p l a n s . Min i m i z e l o s s o f l i f e , s t r u c t u r e s , ci t y in f r a s t r u c t u r e an d o p e n sp a c e . Pr o t e c t ex i s t i n g as s e t s wi t h th e hi g h e s t r e l a t i v e v u l n e r a b i l i t y t o t h e ef f e c t s o f f l o o d s ( 1 0 0 -ye a r fl o o d p l a i n ) Fl o o d i n g , Cl i m a t e Ch a n g e (Sev e r e Win t e r Wea t h e r , a n d Sto r m Sur g e ) 4 Me d i u m Ca r l s b a d Pu b l i c Wo r k s Ca r l s b a d E m e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e C i t y c u r r e n t a n d f u t u r e in f r a s t r u c t u r e a n d d e v e l o p m e n t go a l s an d pl a n s re f l e c t cu r r e n t st a t e a n d c o u n t y r e g u l a t i o n s , re q u i r e m e n t s , a n d p l a n s . Min i m i z e l o s s o f l i f e , s t r u c t u r e s , ci t y in f r a s t r u c t u r e an d op e n sp a c e . May 12, 2026 Item #10 Page 348 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SI X | De v e l o p a Mi t i g a t i o n St r a t e g y 50 Ac t i o n It e m s Ha z a r d s Go a l s Pr i o r i t y Le a d Ag e n c y / Su p p o r t i n g De p a r t m e n t s Es t i m a t e d Co s t s & Po s s i b l e Fu n d i n g Ti m e l i n e Id e a s fo r In t e g r a t i o n Be n e f i t s : (L o s s e s Av o i d e d ) Su p p o r t p ro t e c t io n o f fl o o d p l a i n s f r o m in a p p r o p r i a t e d e v e l o p m e n t Fl o o d i n g , Cl i m a t e Ch a n g e ( Se v e r e Wi n t e r W e a t h e r ) 4 Me d i u m Ca r l s b a d C o m m u n i t y De v e l o p m e n t Ca r l s b a d E m e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Ge n e r a l F u n d 20 2 3 - 20 2 8 En s u r e a d h e r e t o f e d e r a l , s t a t e an d c o u n t y r e g u l a t i o n s a n d gu i d a n c e i n d e v e l o p m e n t i n fl o o d -pr o n e a r e a s . Min i m i z e l o s s o f l i f e , s t r u c t u r e s , Ci t y in f r a s t r u c t u r e an d o p e n sp a c e . Su p p o r t an d ma i n t a i n a co m p r e h e n s i v e a p p r o a c h t o r e d u c e th e p o s s i b i l i t y o f d a m a g e a n d lo s s e s d u e t o c l i m a t e ch a n g e Cl i m a t e Ch a n g e (Dr o u g h t , Ex t r e m e H e a t , Se v e r e W i n t e r We a t h e r ) 5 Me d i u m Ca r l s b a d Pu b l i c Wo r k s - En v i r o n m e n t a l Su s t a i n a b i l i t y Ca r l s b a d E m e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Co n t i n u e u p d a t e o f C i t y ’ s e x i s t i n g Cl i m a t e A c t i o n P l a n t o r e f l e c t cu r r e n t r e g u l a t i o n s , b e s t pr a c t i c e s , a n d c o m m u n i t y in v o l v e m e n t t o r e d u c e po s s i b l e da m a g e or lo s s du e t o c l i m a t e ch a n g e . Me e t or ex c e e d fe d e r a l an d st a t e r e q u i r e m e n t s fo r cl i m a t e ch a n g e r e l a t e d m i t i g a t i o n . Su p p o r t on g o i n g aw a r e n e s s of cl i m a t e c h a n g e a m o n g s e n i o r c i t y le a d e r s h i p a n d / o r l o c a l o f f i c i a l s Cl i m a t e Ch a n g e (Dr o u g h t , Ex t r e m e H e a t , Se v e r e W i n t e r We a t h e r ) 5 Me d i u m Ca r l s b a d Pu b l i c Wo r k s - En v i r o n m e n t a l Su s t a i n a b i l i t y Ca r l s b a d Em e r g e n c y S e r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Pr o v i d e p r e s e n t a t i o n s t o C i t y Co u n c i l wi t h up d a t e on Ci t y ’ s Cl i m a t e A c t i o n P l a n g o a l s a n d pr i o r i t i e s . Me e t or ex c e e d st a t e an d fe d e r a l re q u i r e m e n t s fo r re d u c t i o n in gr e e n h o u s e g a s e m i s s i o n s . Su p p o r t p u b l i c a w a r e n e s s a n d kn o w l e d g e of da m a g e s an d lo s s e s du e t o cl i m a t e ch a n g e th r o u g h co m m u n i t y aw a r e n e s s Cl i m a t e Ch a n g e (Dr o u g h t , Ex t r e m e H e a t , Se v e r e W i n t e r We a t h e r , S e a Le v e l R i s e ) 5 Me d i u m Ca r l s b a d Pu b l i c Wo r k s - En v i r o n m e n t a l Su s t a i n a b i l i t y Ca r l s b a d Co m m u n i c a t i o n s & En g a g e m e n t Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Pr o v i d e pu b l i c ed u c a t i o n ma t e r i a l s t h r o u g h Ci t y we b s i t e , so c i a l me d i a c h a n n e l s , co m m u n i t y o u t r e a c h e v e n t s a n d Ea r t h M o n t h a c t i v i t i e s . Me e t or ex c e e d st a t e an d fe d e r a l re q u i r e m e n t s f o r r e d u c t i o n i n gr e e n h o u s e g a s e m i s s i o n s . Me e t or ex c e e d st a t e re c y c l i n g ma n d a t e s . May 12, 2026 Item #10 Page 349 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SI X | De v e l o p a Mi t i g a t i o n St r a t e g y 51 Ac t i o n It e m s Ha z a r d s Go a l s Pr i o r i t y Le a d Ag e n c y / Su p p o r t i n g De p a r t m e n t s Es t i m a t e d Co s t s & Po s s i b l e Fu n d i n g Ti m e l i n e Id e a s fo r In t e g r a t i o n Be n e f i t s : (L o s s e s Av o i d e d ) Su p p o r t an d ma i n t a i n a co m p r e h e n s i v e a p p r o a c h t o r e d u c e th e po s s i b i l i t y o f d a m a g e a n d l o s s e s du e t o d a m f a i l u r e Cl i m a t e Ch a n g e (Dr o u g h t , Ex t r e m e H e a t , Se v e r e W i n t e r We a t h e r , S e a Le v e l R i s e ) 6 Me d i u m Ca r l s b a d Pu b l i c Wo r k s - Ut i l i t i e s Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Ad h e r e to st a t e , co u n t y an d lo c a l j u r i s d i c t i o n r e g u l a t i o n s a n d re q u i r e m e n t s fo r da m op e r a t i o n s , m a i n t e n a n c e , a n d in s p e c t i o n s . En s u r e aw a r e n e s s o f Ma e r k l e an d La k e Ca l a v e r a D a m Em e r g e n c y A c t i o n P l a n s Su p p o r t e x i s t i n g e f f o r t s t o m i t i g a t e da m f a i l u r e (e . g . , U S A r m y C o r p s o f En g i n e e r s , US Bu r e a u of Re c l a m a t i o n , Ca l i f o r n i a D e p a r t m e n t o f W a t e r Re s o u r c e s ) Cl i m a t e Ch a n g e (Dr o u g h t , Ex t r e m e H e a t , Se v e r e W i n t e r We a t h e r , S e a Le v e l R i s e ) 6 Me d i u m Ca r l s b a d Pu b l i c Wo r k s - Ut i l i t i e s Ca r l s b a d Pu b l i c Wo r k s - En g i n e e r in g Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Co n t i n u e to fo l l o w re g u l a t i o n s an d b e s t p r a c t i c e s a s r e q u i r e d by r e g u l a t o r y a g e n c i e s o n d a m op e r a t i o n s a n d m a i n t e n a n c e . Sup p o r t cu r r e n t re g u l a t i o n s an d re q u i r e m e n t s . Min i m i z e po s s i b i l i t y of da m fa i l u r e or im p a c t of em e r g e n c y s i t u a t i o n s . Pr o t e c t in u n d a t i o n ar e a s fro m in a p p r o p r i a t e de v e l o p m e n t as ap p r o p r i a t e Cl i m a t e Ch a n g e (Dr o u g h t , Ex t r e m e H e a t , Se v e r e W i n t e r We a t h e r , S e a Le v e l R i s e ) 6 Me d i u m Ca r l s b a d Pu b l i c Wo r k s - Ut i l i t i e s Ca r l s b a d Pu b l i c Wo r k s – En g i n e e r i n g Ca r l s b a d Co m m u n i t y De v e l o p m e n t Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Re v i e w d e v e l o p m e n t d e s i g n st a n d a r d s fo r al l fl o o d -pr o n e ar e a s w i t h i n j u r i s d i c t i o n . Su p p o r t an d ma i n t a i n a co m p r e h e n s i v e ap p r o a c h t o r e d u c e t h e po s s i b i l i t y o f da m a g e a n d l o s s d u e t o I T a n d Cy b e r s e c u r i t y t h r e a t s Cy b e r s e c u r i t y 7 Me d i u m Ca r l s b a d In f o r m a t i o n Te c h n o l o g y Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Ed u c a t e c i t y s t a f f a n d l o c a l of f i c i a l s on Cy b e r s e c u r i t y th r e a t s a n d b e s t p r a c t i c e s . Min i m i z e Cy b e r s e c u r i t y r i s k s t o ci t y d a t a a n d a s s e t s . May 12, 2026 Item #10 Page 350 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SI X | De v e l o p a Mi t i g a t i o n St r a t e g y 52 Ac t i o n I t e m s Ha z a r d s Go a l s Pr i o r i t y Le a d A g e n c y / Su p p o r t i n g De p a r t m e n t s Es t i m a t e d C o s t s & Po s s i b l e F u n d i n g Ti m e l i n e Id e a s f o r I n t e g r a t i o n Be n e f i t s : (L o s s e s A v o i d e d ) Su p p o r t on g o i n g aw a r e n e s s of IT an d Cy b e r s e c u r i t y t h r e a t s a m o n g s e n i o r ci t y l e a d e r s h i p a n d / o r l o c a l o f f i c i a l s Cy b e r s e c u r i t y 7 Me d i u m Ca r l s b a d In f o r m a t i o n Te c h n o l o g y Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Pr o v i d e r o u t i n e p r e s e n t a t i o n s t o le a d e r s h i p an d Ci t y Co u n c i l on IT vu l n e r a b i l i t i e s a n d Cy b e r s e c u r i t y ri s k s . Su p p o r t aw a r e n e s s a m o n g le a d e r s h i p an d lo c a l of f i c i a l s . Ma i n t a i n Cy b e r s e c u r i t y pl a n s an d po l i c i e s Cy b e r s e c u r i t y 7 Me d i u m Ca r l s b a d In f o r m a t i o n Te c h n o l o g y Ca r l s b a d Le a d e r s h i p Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Up d a t e ex i s t i n g pl a n s an d po l i c i e s as n e e d e d ba s e d o n fe d e r a l a n d s t a t e g o v e r n m e n t gu i d a n c e an d in d u s t r y b e s t pr a c t i c e s , Min i m i z e Cy b e r s e c u r i t y r i s k s t o ci t y d a t a a n d a s s e t s . Ed u c a t e t h e p u b l i c t o i n c r e a s e aw a r e n e s s of ha z a r d s an d mi t i g a t i o n op p o r t u n i t i e s Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 8 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Ca r l s b a d Fi r e Pr e v e n t i o n Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Co n t i n u e t o p r o v i d e c o m m u n i t y ed u c a t i o n ou t r e a c h on ha z a r d s an d m i t i g a t i o n a c t i o n s . In c r e a s e co m m u n i t y aw a r e n e s s an d e n g a g e m e n t o n h o w t o mi t i g a t e h a z a r d s . Pr o m o t e pa r t n e r s h i p s be t w e e n th e st a t e , c o u n t i e s , a n d lo c a l j u r i s d i c t i o n s an d a g e n c i e s t o i d e n t i f y , p r i o r i t i z e , a n d im p l e m e n t m i t i g a t i o n a c t i o n s Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 8 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Ot h e r C i t y de p a r t m e n t s ta s k e d w i t h LH M P ac t i o n s or h a z a r d mi t i g a t i o n Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Se r v e as an ac t i v e me m b e r of co u n t y a n d l o c a l j u r i s d i c t i o n co m m i t t e e s , a g e n c i e s a n d co m m u n i t y p a r t n e r s t h a t su p p o r t h a z a r d mi t i g a t i o n . Re i n f o r c e a c o o r d i n a t e d pa r t n e r s h i p a m o n g t h e ag e n c i e s a n d co m m u n i t y pa r t n e r s in ha z a r d mi t i g a t i o n . May 12, 2026 Item #10 Page 351 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SI X | De v e l o p a Mi t i g a t i o n St r a t e g y 53 Ac t i o n I t e m s Ha z a r d s Go a l s Pr i o r i t y Le a d A g e n c y / Su p p o r t i n g De p a r t m e n t s Es t i m a t e d C o s t s & Po s s i b l e F u n d i n g Ti m e l i n e Id e a s f o r I n t e g r a t i o n Be n e f i t s : ( L o s s e s A v o i d e d ) Co l l a b o r a t e w i t h t h e C h a m b e r o f Co m m e r c e , bu s i n e s s e s , an d ot h e r lo c a l a g e n c i e s t o p r o m o t e h a z a r d mi t i g a t i o n i n t h e l o c a l c o m m u n i t y Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 8 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Ot h e r r e l e v a n t Ci t y de p a r t m e n t s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Co n t i n u e t o e n g a g e C h a m b e r me m b e r s t h r o u g h R e a d y Ca r l s b a d Bu s i n e s s A l l i a n c e on ke y ha z a r d mi t i g a t i o n st r a t e g i e s fo r b u s i n e s s e s . Co n t i n u e t o e n g a g e C a r l s b a d sc h o o l d i s t r i c t s o n k e y h a z a r d mi t i g a t i o n st r a t e g i e s fo r sc h o o l s . Min i m i z e l o s s o f l i f e , s t r u c t u r e s an d fi n a n c i a l im p a c t to bu s i n e s s e s du e to a di s a s t e r or em e r g e n c y . Su p p o r t on g o i n g aw a r e n e s s of ha z a r d mi t i g a t i o n p r i n c i p l e s a n d p r a c t i c e am o n g l o c a l o f f i c i a l s Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 9 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Su b m i t Co u n t y of Sa n Di e g o 2 0 2 3 -20 2 8 MJ H M P fo r C i t y Co u n c i l ap p r o v a l . Pr o v i d e st a f f re p o r t s or pr e s e n t a t i o n s to C i t y C o u n c i l as n e e d e d . Su p p o r t on g o i n g aw a r e n e s s am o n g l o c a l of f i c i a l s . Im p l e m e n t ac t i o n s as s o c i a t e d wi t h th e MJ H M P Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 9 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Wo r k w i t h l e a d a g e n c y a n d su p p o r t i n g de p a r t m e n t s to en s u r e a c t i o n i t e m s a r e re v i e w e d f o r s t a t u s u p d a t e s o n a ro u t i n e ba s i s . Su p p o r t a ju r i s d i c t i o n wi t h an up d a t e d , we l l -ro u n d e d ap p r o a c h to h a z a r d m i t i g a t i o n . May 12, 2026 Item #10 Page 352 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SI X | De v e l o p a Mi t i g a t i o n St r a t e g y 54 Ac t i o n I t e m s Ha z a r d s Go a l s Pr i o r i t y Le a d A g e n c y / Su p p o r t i n g De p a r t m e n t s Es t i m a t e d C o s t s & Po s s i b l e F u n d i n g Ti m e l i n e Id e a s f o r I n t e g r a t i o n Be n e f i t s : ( L o s s e s A v o i d e d ) Co n t i n u e GI S ma p p i n g of po t e n t i a l ha z a r d a r e a s Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 9 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 An o n g o i n g e f f o r t o f C a r l s b a d Em e r g e n c y Se r v i c e s , Ca r l s b a d Fi r e D e p a r t m e n t an d Ca r l s b a d GI S is to e n s u r e c i t y r e a d i n e s s wi t h c u r r e n t GI S ma p p i n g In t e g r a t e M J H M P i n t o o t h e r c i t y pl a n n i n g do c u m e n t s as ap p r o p r i a t e Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 10 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 Wo r k w i t h c i t y s t a f f t a s k e d w i t h up d a t i n g c i t y p l a n s ( e. g . , Ge n e r a l P l a n -Pu b l i c S a f e t y & Ho u s i n g e l e m e n t s ) to su p p o r t in t e g r a t i o n of MJ H M P . Su p p o r t a c o o r d i n a t e d e f f o r t t o en s u r e k e y a c t i o n s a n d re q u i r e m e n t s ar e pa r t of th e ot h e r ci t y pl a n as ap p r o p r i a t e . In c l u d e ha z a r d mi t i g a t i o n in ag e n d a di s c u s s i o n s w i t h C E R T a n d R e a d y Ca r l s b a d Bu s i n e s s Al l i a n c e (R C B A ) Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 10 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 In c o r p o r a t e MJ H M P ac t i o n it e m s in t o s e a s o n a l h a z a r d di s c u s s i o n s , e. g . , Oc t o b e r - ea r t h q u a k e s . Su p p o r t C i t y ’ s c o m m u n i t y re s i l i e n c e go a l to ed u c a t i o n re s i d e n t s a n d b u s i n e s s e s o n pr e p a r e d n e s s an d re s p o n s e ne e d s . Sh a r e E O C o p e r a t i o n a l e n v i r o n m e n t an d s i t u a t i o n a l a w a r e n e s s d i s p l a y s ut i l i z i n g te c h n o l o g y su c h as Mi c r o s o f t Te a m s a n d Z o o m Hi g h Si g n i f i c a n t Ha z a r d , A l l Ha z a r d s 10 Me d i u m Ca r l s b a d Em e r g e n c y Se r v i c e s Co s t s un d e t e r m i n e d / Gen e r a l F u n d 20 2 3 - 20 2 8 En s u r e te c h n o l o g y u p g r a d e s f o r bu i l d o u t of Ci t y ’ s EO C to su p p o r t ex p a n d i n g t e c h n o l o g y n e e d s . Su p p o r t s c i t y ’ s r e a d i n e s s i n re s p o n d i n g t o a d i s a s t e r o r em e r g e n c y in an in -pe r s o n or vi r t u a l EO C en v i r o n m e n t May 12, 2026 Item #10 Page 353 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 53 SECTION SEVEN | Keep the Plan Current 7. SECTION SEVEN: Keep the Plan Current Hazard Mitigation Plan maintenance is the process the planning team establishes to track the plan’s implementation progress and to inform the plan update. The plan must include a description of the method and schedule for monitoring, evaluating, and updating it within a 5-year cycle. These procedures help to: • Ensure that the mitigation strategy is implemented according to the plan. • Provide the foundation for an ongoing mitigation program in your community. • Standardize long-term monitoring of hazard-related activities. • Integrate mitigation principles into community officials’ daily job responsibilities and department roles. • Maintain momentum through continued engagement and accountability in the plan’s progress. Hazard Mitigation Plan updates provide the opportunity to consider how well the procedures established in the previously approved plan worked and revise them as needed. This annex is part of the most recent San Diego County Multi-Jurisdictional Hazard Mitigation Plan update. The plan was last updated in 2018. See the San Diego County Multi-Jurisdictional Hazard Mitigation Plan for more information. 7.1. Mitigation Action Progress Plan monitoring means tracking the implementation of the plan over time. The plan must identify how, when, and by whom the plan will be monitored. May 12, 2026 Item #10 Page 354 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SE V E N | Ke e p th e Pl a n Cu r r e n t 54 7. 1 Tab l e : Mi t i g a t i o n Ac t i o n Pr o g r e s s Re p o r t Ac t i o n It e m Re s p o n s i b l e Ag e n c y Re p o r t i n g Pe r i o d Pr o j e c t St a t u s If co m p l e t e d , ho w fu n d e d Wh a t wa s ac c o m p l i s h e d Ob s t a c l e s If un c o m p l e t e d , ex p l a i n wh y Ca r r y f o r w a r d to 20 2 3 -20 2 8 1 Ca r l s b a d E m e r g e n c y Ma n a g e m e n t Ad m i n i s t r a t i v e T e a m (C E M A T ) / H a z a r d Mi t i g a t i o n W o r k i n g Gr o u p t o d e v e l o p ha z a r d mi t i g a t i o n pu b l i c aw a r e n e s s s t r a t e g i e s Ca r l s b a d Em e r g e n c y Se r v i c e s 20 1 8 -20 2 3 Co m p l e t e d No t ap p l i c a b l e En s u r e d t h e ci t y ’ s L H M P ac t i o n s w e r e in t e g r a t e d i n t o ci t y p l a n s a n d pu b l i c ed u c a t i o n a n d co m m u n i t y ou t r e a c h st r a t e g i e s . No n e No t ap p l i c a b l e Ye s 2 Co n t i n u e wi t h Ho s p Gr o v e tr i m m i n g an d re p l a n t i n g e f f o r t s . Ca r l s b a d Pa r k s & Re c r e a t i o n 20 1 8 -20 2 3 Co m p l e t e d Gr a n t Fu n d i n g an d G e n e r a l Fu n d Ho s t e d ( 2 ) co m m u n i t y ev e n t s t o a s s i s t wi t h tr i m m i n g & pl a n n i n g e f f o r t s St a f f s h o r t a g e s gl o b a l pa n d e m i c No t ap p l i c a b l e Ye s Th i s i s p a r t of th e ci t y ’ s Ca r l s b a d Co m m u n i t y Fo r e s t a n d Tr a i l s pl a n s 3 Co n t i n u e to ma i n t a i n th e C i t y ’ s w e e d ab a t e m e n t o r d i n a n c e t o fa c i l i t a t e t h e r e m o v a l o f an n u a l we e d s / v e g e t a t i o n o r ha b i t a t . Ca r l s b a d Fi r e Pr e v e n t i o n 20 1 8 -20 2 3 Co m p l e t e d fo r re p o r t i n g pe r i o d , bu t is a n on g o i n g pr o g r a m Ge n e r a l Fu n d Re d u c t i o n in th e nu m b e r o f n o n - co m p l i a n t pr o p e r t y ow n e r s In c r e a s e d co o r d i n a t i o n wi t h Ci t y ’ s Co d e En f o r c e m e n t te a m No n e No t ap p l i c a b l e Ye s Th i s i s p a r t of th e ci t y ’ s Ha z a r d Re d u c t i o n Pr o g r a m May 12, 2026 Item #10 Page 355 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SE V E N | Ke e p th e Pl a n Cu r r e n t 55 Ac t i o n It e m Re s p o n s i b l e Ag e n c y Re p o r t i n g Pe r i o d Pr o j e c t St a t u s If co m p l e t e d , ho w fu n d e d Wh a t wa s ac c o m p l i s h e d Ob s t a c l e s If un c o m p l e t e d , ex p l a i n wh y Ca r r y f o r w a r d to 20 2 3 -20 2 8 4 In v e s t i g a t e fe a s i b i l i t y of ma i n t a i n i n g h a z a r d o u s ma t e r i a l s bu s i n e s s pl a n s in M o b i l e D a t a Co m p u t e r . Ca r l s b a d Fi r e De p a r t m e n t 20 1 8 -20 2 0 Co m p l e t e d Ge n e r a l Fu n d Bu s i n e s s e s w h o st o r e o r ge n e r a t e ha z a r d o u s ma t e r i a l s a r e in t e g r a t e d i n t o th e Ca r l s b a d Fi r e De p a r t m e n t ’ s re s p o n s e s y s t e m ap p l i c a t i o n . Th i s f e a t u r e al l o w s f i r e op e r a t i o n s pe r s o n n e l t o vi e w f a c i l i t y ha z a r d m a t e r i a l in v e n t o r y a n d si t e map s be f o r e a r r i v i n g on - sc e n e No n e No t ap p l i a b l e No May 12, 2026 Item #10 Page 356 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SE V E N | Ke e p th e Pl a n Cu r r e n t 56 Ac t i o n It e m Re s p o n s i b l e Ag e n c y Re p o r t i n g Pe r i o d Pr o j e c t St a t u s If co m p l e t e d , ho w fu n d e d Wh a t wa s ac c o m p l i s h e d Ob s t a c l e s If un c o m p l e t e d , ex p l a i n wh y Ca r r y f o r w a r d to 20 2 3 -20 2 8 5 Co n t i n u e p e r i o d i c up d a t e s of lo c a l bu i l d i n g co d e s , p u b l i c w o r k s co n s t r u c t i o n c o d e s , zo n i n g an d g r a d i n g or d i n a n c e s t o r e f l e c t le g i s l a t i v e c h a n g e s . Ca r l s b a d Fi r e Pr e v e n t i o n Ca r l s b a d Co m m u n i t y De v e l o p m e n t Ca r l s b a d P u b l i c Wo r k s De p a r t m e n t Ca r l s b a d C i t y At t o r n e y Of f i c e 20 1 8 -20 2 3 Co m p l e t e d fo r re p o r t i n g pe r i o d , bu t is a n on g o i n g ef f o r t Ge n e r a l fu n d En s u r e a l l c i t y pl a n n i n g , de v e l o p m e n t , pe r m i t t i n g , in s p e c t i o n s a n d co d e en f o r c e m e n t pr a c t i c e s r e f l e c t cu r r e n t lo c a l an d s t a t e c o d e s Up d a t e s ma d e to ex i s t i n g c i t y or d i n a n c e s t o re f l e c t c h a n g e s to co d e s No n e No t ap p l i c a b l e Ye s 6 Up d a t e ha z a r d o u s ma t e r i a l bu s i n e s s pl a n li b r a r y . Ca r l s b a d Fi r e Pr e v e n t i o n 20 1 9 -20 2 3 Co m p l e t e d fo r re p o r t i n g pe r i o d , bu t is on g o i n g ef f o r t No t ap p l i c a b l e Di g i t i z e ha z a r d o u s ma t e r i a l p l a n s fo r ea s i e r ac c e s s by c i t y s t a f f Gl o b a l pa n d e m i c sl o w e d t h e pr o g r e s s o f t h e pr o j e c t No t ap p l i c a b l e Ye s May 12, 2026 Item #10 Page 357 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SE V E N | Ke e p th e Pl a n Cu r r e n t 57 Ac t i o n It e m Re s p o n s i b l e Ag e n c y Re p o r t i n g Pe r i o d Pr o j e c t St a t u s If co m p l e t e d , ho w fu n d e d Wh a t wa s ac c o m p l i s h e d Ob s t a c l e s If un c o m p l e t e d , ex p l a i n wh y Ca r r y f o r w a r d to 20 2 3 -20 2 8 7 Pr o v i d e in f o r m a t i o n to th e p u b l i c o n t h e c i t y we b s i t e a n d t h r o u g h pu b l i c e d u c a t i o n op p o r t u n i t i e s . Ca r l s b a d Em e r g e n c y Se r v i c e s Ca r l s b a d Fi r e Pr e v e n t i o n 20 1 8 -20 2 3 Co m p l e t e d Ge n e r a l fu n d St a f f pr o v i d e d in f o r m a t i o n No n e No t ap p l i c a b l e Ye s 8 Up d a t e a n d a d o p t L o c a l Co a s t a l P r o g r a m ( L C P ) t o in c l u d e a s s e s s m e n t o f im p a c t s a n d vu l n e r a b i l i t i e s as s o c i a t e d w i t h s e a l e v e l ri s e , s u c h a s i n u n d a t i o n , fl o o d i n g , w a v e i m p a c t s an d er o s i o n . LC P w i l l i d e n t i f y s t r a t e g i e s an d ad a p t a t i o n m e a s u r e s to m i n i m i z e ri s k s . Ca r l s b a d Co m m u n i t y De v e l o p m e n t Ca r l s b a d Em e r g e n c y Se r v i c e s 20 1 9 -20 1 9 Co m p l e t e d Ge n e r a l fu n d Ad o p t i o n of th e Pl a n b y : Ca r l s b a d Ci t y Co u n c i l a n d Ca l i f o r n i a Co a s t a l Co m m i s s i o n No n e No t ap p l i c a b l e No 9 Ad o p t C l i m a t e C h a n g e Ac t i o n P l a n ( C A P ) , w h i c h co n t a i n s i n f o r m a t i o n ab o u t t h e i m p a c t s o f cl i m a t e c h a n g e a n d a co m p r e h e n s i v e s t r a t e g y to re d u c e t h e co m m u n i t y ’ s gr e e n h o u s e g a s em i s s i o n s t h a t a r e co n t r i b u t i n g t o c l i m a t e ch a n g e . Ca r l s b a d En v i r o n m e n t a l Su s t a i n a b i l i t y 20 1 5 -20 2 3 In i t i a l pl a n co m p l e t e d Pl a n up d a t e i s in pr o g r e s s Ge n e r a l fu n d an d g r a n t s Th r o u g h im p l e m e n t a t i o n of t h e e x i s t i n g CA P , t h e c i t y su r p a s s e d i t s 20 2 0 gr e e n h o u s e re d u c t i o n ta r g e t s . St a f f ch a n g e s Gl o b a l pa n d e m i c sl o w e d t h e pr o g r e s s o f t h e pr o j e c t No t ap p l i c a b l e Ye s May 12, 2026 Item #10 Page 358 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SE C T I O N SE V E N | Ke e p th e Pl a n Cu r r e n t 58 Ac t i o n It e m Re s p o n s i b l e Ag e n c y Re p o r t i n g Pe r i o d Pr o j e c t St a t u s If co m p l e t e d , ho w fu n d e d Wh a t wa s ac c o m p l i s h e d Ob s t a c l e s If un c o m p l e t e d , ex p l a i n wh y Ca r r y f o r w a r d to 20 2 3 -20 2 8 10 Co o r d i n a t e c i t y I T a n d Cy b e r s e c u r i t y pl a n n i n g wi t h C o u n t y Cy b e r s e c u r i t y Pl a n n i n g Gr o u p . Ca r l s b a d In f o r m a t i o n Te c h n o l o g y Ca r l s b a d Em e r g e n c y Se r v i c e s 20 2 0 -20 2 3 Co m p l e t e d fo r re p o r t i n g pe r i o d , bu t is a n on g o i n g pr o g r a m Ge n e r a l fu n d En h a n c i n g th e ci t y ’ s Cy b e r s e c u r i t y pr o c e s s a n d pr o c e d u r e s t o mi n i m i z e po t e n t i a l ri s k s No n e No t ap p l i c a b l e Ye s May 12, 2026 Item #10 Page 359 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SEVEN | Keep the Plan Current 59 7.2. Plan Update Evaluation Plan Section Considerations Explanation Planning Process Should new jurisdictions and/or districts be invited to participate in future updates? Yes, as new business and/or community sector organizations form during the next project period. Have any internal or external agencies been invaluable to the mitigation strategy? Carlsbad Community Development Department Carlsbad Community Services Carlsbad Communication & Engagement Department Carlsbad Construction Management & Inspection Department Carlsbad Emergency Management Administrative Team (CEMAT) Carlsbad Fire Department Emergency Services Carlsbad Fire Department Fire Prevention Carlsbad Fleet & Facilities Department Carlsbad GIS Department Carlsbad Information Technology Department Carlsbad Parks & Recreation Department Carlsbad Utilities Department California Department of Water Resources Carlsbad Chamber of Commerce Community Emergency Response Team (CERT) Ready Carlsbad Business Alliance US Army Corps of Engineers US Bureau of Reclamation Can any procedures (e.g., meeting announcements, plan updates) be done differently or more efficiently? Yes, the continuance of virtual meetings developed during the worldwide pandemic. Has the Planning Team undertaken any public outreach activities? Yes, a variety of outreach activities continue to be developed and implemented and are ongoing. How can public participation be improved? The City of Carlsbad has always had strong public participation and the goal is to keep the community engaged in the planning process. Have there been any changes in public support and/or decision-maker priorities related to hazard mitigation? Yes, the worldwide pandemic saw several conflicting priorities related to public mitigation support. Capability Assessment Have jurisdictions adopted new policies, plans, regulations, or reports that could be incorporated into this plan? Yes, updated hazard mitigation plans are part of an ongoing aspect of Carlsbad’s mitigation efforts. Are there different or additional administrative, human, technical, and financial resources available for mitigation planning? Potentially, as staff positions change, and budget priorities shift, this capability may see some limitation of available resources. Are there different or new education and outreach programs and resources available for mitigation activities? Carlsbad is always striving to incorporate new outreach programs and resources into its mitigation activities. Increased coordination with Carlsbad Prevention and Preparedness teams on outreach and engagement opportunities. Has NFIP participation changed in the participating jurisdictions? No change noted. TABLE 12: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 7.2 DATA. May 12, 2026 Item #10 Page 360 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SEVEN | Keep the Plan Current 60 Plan Section Considerations Explanation Risk Assessment Has a natural and/or technical or human-caused disaster occurred? Worldwide pandemic. Should the list of hazards addressed in the plan be modified? Hazards modifications have been made. Are there new data sources and/or additional maps and studies available? If so, what are they and what have they revealed? Should the information be incorporated into future updates? As new sources of GIS products, and technological tools (mobile apps, etc.) emerged, they have been identified and incorporated in the plan. Do any new critical facilities or infrastructure need to be added to the asset lists? Not currently. Have any changes in development trends occurred that could create additional risks? Section 5.3 discusses development since the 2018 Plan and future development for the jurisdiction. With the exception of more people living in the area potentially exposed to natural hazards, this growth should not cause a significant change in the City’s vulnerability to identify priority hazards. Are there repetitive losses and/or severe repetitive losses to document? No. Mitigation Strategy Is the mitigation strategy being implemented as anticipated? Were the cost and timeline estimate accurate? Yes. Should new mitigation actions be added to the Action Plan? Should existing mitigation actions be revised or eliminated from the plan? Already projected to increase by three additional mitigation goals moving into the next project period. Are there new obstacles that were not anticipated in the plan that will need to be considered in the next plan update? Unknown. Are there new funding sources to consider? Unknown. Have elements of the plan been incorporated into other planning mechanisms? Yes, there is a strong connection between mitigation planning and Carlsbad’s General Plan. Plan Maintenance Procedures Was the plan monitored and evaluated as anticipated? Yes. What are needed improvements to the procedures? Ensure continued monitoring and evaluation by appropriate city staff members during the next project period. TABLE 13: FEMA LOCAL MITIGATION PLANNING HANDBOOK WORKSHEET 7.2 DATA CONTINUED May 12, 2026 Item #10 Page 361 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SEVEN | Keep the Plan Current 61 7.3. Implementation through existing programs and other planning mechanisms Implementation and maintenance of this LHMP Update is critical to the overall success of hazard mitigation planning. This section provides an overview of the overall strategy for plan implementation and maintenance and outlines the method and schedule for monitoring, updating, and evaluating the Plan. The section also discusses incorporating the LHMP Update into existing planning mechanisms and how to address continued public involvement. 7.3.1 Implementation Once adopted, this LHMP Update faces the truest test of its worth: implementation. While this Plan contains many worthwhile actions, the city will need to decide which action(s) to undertake first. Two factors will help with making that decision: the priority assigned the actions in the planning process and funding availability. Low or no-cost actions most easily demonstrate progress toward successful LHMP implementation. An important implementation mechanism that is highly effective and low-cost is incorporation of the hazard mitigation plan recommendations and their underlying principles into other plans and mechanisms, such as general plans, stormwater plans, Emergency Operations Plan (EOP), evacuation plans, and other hazard and emergency management planning efforts for the City. City already implements policies and programs to reduce losses to life and property from hazards. This LHMP Update builds upon the momentum developed through previous and related planning efforts and mitigation programs and recommends implementing actions, where possible, through these other program mechanisms. Mitigation is most successful when it is incorporated into the day-to-day functions and priorities of government and development. Implementation can be accomplished by adhering to the schedules identified for each action and through constant, pervasive, and energetic efforts to network and highlight the multi-objective, win-win benefits to each program and the Carlsbad community and its stakeholders. This effort is achieved through the routine actions of monitoring agendas, attending meetings, and promoting a safe, sustainable community. Additional mitigation strategies could include consistent and ongoing enforcement of existing policies and vigilant review of programs for coordination and multi- objective opportunities. Simultaneous to these efforts, it is important to maintain a constant monitoring of funding opportunities that can be leveraged to implement some of the more costly recommended actions. This could include creating and maintaining a bank of ideas on how to meet local match or participation requirements. When funding does become available, the city will be in a better position to capitalize on the opportunity. Funding opportunities to be monitored include special pre- and post-disaster funds, state and federal programs and earmarked funds, benefit assessments, and other state and federal grant programs, including those that can serve or support multi-objective applications. 7.3.2 Responsibility for Implementation of Goals and Activities The staff appointed to represent each department within the city are charged with implementation of various actions in this LHMP Update. During the annual reviews as described later in this section, an assessment of progress on each of the goals and activities in the LHMP Update should be determined and noted. At that time, recommendations were made to modify timeframes for completion of activities, funding resources, and responsible entities. On an annual basis, the priority standing of various activities may also be changed. Some activities that are found not to be doable may be deleted from the Plan May 12, 2026 Item #10 Page 362 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SEVEN | Keep the Plan Current 62 Update entirely and activities addressing problems unforeseen during Plan development may be added. 7.3.3 Role of Hazard Mitigation Planning Committee (HMPC) in Implementation and Maintenance With adoption of this LHMP Update, the City’s Emergency Services will be responsible for the LHMP implementation and maintenance. The HMPC identified in Section 2 (or a similar committee) will reconvene annually to ensure mitigation strategies are being implemented and the city continues to maintain compliance with the NFIP. As such, the city will continue its relationship with the HMPC, and: ▪ Act as a forum for hazard mitigation issues ▪ Disseminate hazard mitigation ideas and activities to all participants ▪ Pursue the implementation of high-priority, low/no-cost recommended actions ▪ Ensure hazard mitigation remains a consideration for community decision makers ▪ Maintain a vigilant monitoring of multi-objective cost-share opportunities to help the community implement the plan’s recommended actions for which no current funding exists ▪ Monitor and assist in the implementation and update of this Plan 7.4 Maintenance Plan maintenance implies an ongoing effort to monitor and evaluate LHMP implementation and to update this Plan as progress, roadblocks, or changing circumstances are recognized. 7.4.1. Maintenance Schedule ▪ Carlsbad Emergency Services is responsible for initiating Plan reviews. In order to monitor progress and update the mitigation strategies identified in the mitigation action plan, the HMPC will revisit this Plan annually each year and following a hazard event. With this LHMP Update anticipated to be fully approved and adopted in October 2023, the next formal Plan update for the Placer County Planning Area will occur in 2024. 7.4.2. Maintenance Schedule The City Emergency Services is responsible for initiating Plan reviews. To monitor progress and update the mitigation strategies identified in the mitigation action plan, Emergency Services and the HMPC will revisit this Plan annually each year and following a hazard event. 7.4.3. Maintenance Evaluation Process Evaluation of progress can be achieved by monitoring changes in vulnerabilities identified in the LHMP. Changes in vulnerability can be identified by noting: ▪ Decreased vulnerability as a result of implementing recommended actions ▪ Increased vulnerability as a result of failed or ineffective mitigation actions ▪ Increased vulnerability as a result of new development (and/or annexation). ▪ Increased vulnerability resulting from unforeseen or new circumstances. Updates to this LHMP will: ▪ Consider changes in vulnerability due to action implementation ▪ Document success stories where mitigation efforts have proven effective May 12, 2026 Item #10 Page 363 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SEVEN | Keep the Plan Current 63 ▪ Document areas where mitigation actions were not effective ▪ Document any new hazards that may arise or were previously overlooked ▪ Incorporate new data or studies on hazards and risks ▪ Incorporate new capabilities or changes in capabilities ▪ Incorporate growth and development-related changes to infrastructure inventories ▪ Incorporate new action recommendations or changes in action prioritization. Changes will be made to this LHMP update to accommodate for actions that have failed or are not considered feasible after a review of their consistency with established criteria, time frame, community priorities, and/or funding resources. All mitigation actions will be reviewed as well during the monitoring and update of this Plan to determine feasibility of future implementation. Updating of this LHMP will be by written changes and submissions, as the HMPC deems appropriate and necessary 7.5 Annual Plan Review Process For the LHMP Update review process, Placer County OES, as lead along with the County CRS Coordinator, will be responsible for facilitating, coordinating, and scheduling reviews and maintenance of the LHMP. The LHMP is intended to be a living document. The review of the 2021 LHMP Update will normally occur on a quarterly basis each year and will be conducted by the HMPC as follows: ▪ The Placer County OES will place an advertisement in the local newspaper advising the public of the date, time, and place for each quarterly review of the LHMP Update and will be responsible for leading the meeting to review the Plan. ▪ Notices will be mailed to the members of the HMPC, federal, state, and local agencies, non-profit groups, local planning agencies, representatives of business interests, neighboring communities, and others advising them of the date, time, and place for the review. ▪ County/City/District officials will be noticed by email and telephone or personal visit and urged to participate. ▪ Members of the County’s Planning Commission and other appointed commissions and groups will also be noticed by email and either by telephone or personal visit. ▪ Prior to the review, department heads and others tasked with implementation of the various activities will be queried concerning progress on each activity in their area of responsibility and asked to present a report at the review meeting. ▪ The local news media will be contacted, and a copy of the current Plan will be available for public comment at Placer County. ▪ After the review meeting, minutes of the meeting and a quarterly report will be prepared by the HMPC and forwarded to the news media (public) and the ISO/CRS specialist for the CRS program. The report will also be presented to the County Board of Supervisors for review, and a request will be made that the Board take action to recognize and adopt any changes resulting from the review. 7.5.1 Criteria for Annual Reviews The criteria recommended will be utilized in reviewing and updating the LHMP. More specifically, the reviews should include the following information: ▪ Community growth or change in the past quarter. ▪ The number of substantially damaged or substantially improved structures by flood zone. ▪ The renovations to public infrastructure including water, sewer, drainage, roads, bridges, gas lines, and buildings. ▪ Natural hazard occurrences that required activation of the Emergency Operations Center (EOC) and whether or not the event resulted in a presidential disaster declaration. May 12, 2026 Item #10 Page 364 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SEVEN | Keep the Plan Current 64 ▪ Natural hazard occurrences that were not of a magnitude to warrant activation of the EOC or a federal disaster declaration but were severe enough to cause damage in the community or closure of businesses, schools, or public services. ▪ The dates of hazard events descriptions. ▪ Documented damages due to the event. ▪ Closures of places of employment or schools and the number of days closed. ▪ Road or bridge closures due to the hazard and the length of time closed. ▪ Assessment of the number of private and public buildings damaged and whether the damage was minor, substantial, major, or if buildings were destroyed. The assessment will include residences, mobile homes, commercial structures, industrial structures, and public buildings, such as schools and public safety buildings. ▪ Review of any changes in federal, state, and local policies to determine the impact of these policies on the community and how and if the policy changes can or should be incorporated into the Hazard Mitigation Plan. Review of the status of implementation of projects (mitigation strategies) including projects completed will be noted. Projects behind schedule will include a reason for delay of implementation. 7.5.2 Incorporation into Existing Planning Mechanisms Another important implementation mechanism that is highly effective and low-cost is incorporation of the 2023 LHMP recommendations and their underlying principles into other City plans and mechanisms. Where possible, Plan participants will use existing plans and/or programs to implement hazard mitigation actions. As previously stated in Section 7.1 of this plan, mitigation is most successful when it is incorporated into the day-to-day functions and priorities of government and development. The point is re- emphasized here. As described in this LHMP’s capability assessment, the City already implements policies and programs to reduce losses to life and property from hazards. This Plan builds upon the momentum developed through previous and related planning efforts and mitigation programs and recommends implementing actions, where possible, through these other program mechanisms. These existing mechanisms include: ▪ City general and master plans, to include Public Safety and Housing elements ▪ City Emergency Operations Plans and other emergency management efforts ▪ City Climate Change Plan ▪ City ordinances ▪ Flood/stormwater management/master plans ▪ Capital improvement plans and budgets ▪ Other plans and policies outlined in the capability assessment ▪ Other plans, regulations, and practices with a mitigation focus HMPC members involved in these other planning mechanisms will be responsible for integrating the findings and recommendations of this LHMP with these other plans, programs, etc., as appropriate. As described in Section 7.1 Implementation, incorporation into existing planning mechanisms will be done through the routine actions of: ▪ Monitor other planning/program agendas ▪ Attend other planning/program meetings ▪ Participate in other planning processes The successful implementation of this mitigation strategy will require constant and vigilant review of existing May 12, 2026 Item #10 Page 365 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 SECTION SEVEN | Keep the Plan Current 65 plans and programs for coordination and multi-objective opportunities that promote a safe, sustainable community. Efforts should continuously be made to monitor the progress of mitigation actions implemented through these other planning mechanisms and, where appropriate, their priority actions should be incorporated into updates of this hazard mitigation plan. May 12, 2026 Item #10 Page 366 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Carlsbad Municipal Water District 2025 Urban Water Management Plan May 2026 APPENDIX J: REPORTING ON REDUCED DELTA RELIANCE May 12, 2026 Item #10 Page 367 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Appendix J – Reporting on Reduced Delta Reliance Regulatory Background Urban water suppliers that anticipate participating in or receiving water from a proposed project, such as a multiyear water transfer, conveyance facility, or new diversion that involves transferring water through, exporting water from, or using water in the Sacramento-San Joaquin Delta (Delta) should demonstrate reduced reliance on the Delta in their 2025 Urban Water Management Plans (UWMPs) that can then be used in the certification of consistency process to demonstrate consistency with Delta Plan Policy WR P1, Reduce Reliance on the Delta Through Improved Regional Water Self-Reliance (California Code Regulations, Title 23, §5003).1 The Delta Plan Policy WR P1 identifies the UWMP as the tool to demonstrate consistency with the state policy that suppliers that carry out or take part in covered actions must reduce their reliance on the Delta.2 Carlsbad Municipal Water District’s (CMWD) information on its reduced reliance on the Delta is documented below and can be used in future certifications of consistency with WR P1 for potential future water supply covered actions in the Delta. Carlsbad Municipal Water District Reliance on Delta Watershed CMWD currently has two local water supplies, recycled water and desalinated seawater. The remainder of CMWD’s potable water supply is purchased from the San Diego County Water Authority (Water Authority). In 2025, approximately 83% of CMWD’s potable water was purchased from the Water Authority. More than half of the Water Authority’s supply comes from its imported supply portfolio, which consists of Colorado River transfers from Imperial Irrigation District (IID), and from the State Water Project (SWP) and Central Valley Project (CVP) via Metropolitan Water District of Southern California (MWD). CMWD’s only imported water supplies that originate in the Delta watershed are imported water supplies delivered by the Water Authority via MWD. Recognizing that the Delta supplies are threatened by uncertain long-term reliability issues associated with drought shortages, climate change, seismic events, environmental impacts, and flow restrictions, and that imported water purchases are becoming increasingly expensive, CMWD has taken actions to reduce demand for imported water from the Water Authority as supplied by MWD, and is continuing to explore future opportunities to continue to reduce its reliance on imported water. Given that CMWD’s only potential source of water from the Delta watershed is water purchased from the Water Authority, CMWD relies on the Water Authority’s reduced Delta reliance to also demonstrate reduced regional reliance on the Delta. Water Authority Reduced Reliance on Delta Watershed As part of its 2025 UWMP, the Water Authority completed a Delta Reliance analysis to evaluate reduced Delta reliance consistent with Appendix C in the California Department of Water Resources’ (DWR) UWMP Guidebook 2025 (DWR Guidebook). CMWD’s 2025 UWMP Appendix K summarizes the Water Authority’s 2025 reduced Delta reliance analysis. The Water Authority included in its 2025 UWMP documentation of consistency with WR P1 by quantifying the water use 1 Urban Water Management Plan Guidebook 2025, California Department of Water Resources, January 2026, p. C-1. 2 Ibid., p. C-2. May 12, 2026 Item #10 Page 368 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 efficiency supply volume; quantifying total water supplies; quantifying the water supplies that contribute to regional self-reliance; and demonstrating reduced reliance on water supplies from the Delta watershed. Quantification of Water Supplies that Contribute to Regional Self-Reliance Water suppliers must report the expected outcome for measurable improvement in regional self- reliance as a reduction in water used from the Delta watershed. Table 1 lists the sources of water supplies and volumes that contribute to regional self-reliance.3 As shown in the table, the Water Authority’s reliance on the Delta watershed, and consequently CMWD’s reliance on the Delta watershed, decreases over time as the percent of water supplies that contribute to regional self- reliance increase over time. CMWD’s individual supplies that contribute to regional self-reliance can be found in Chapter 6 Water Supply in CMWD’s 2025 UWMP. Table 1 – Calculation of Supplies Contributing to Regional Self-Reliance Source: San Diego County Water Authority, 2025 UWMP Appendix J, March 2026. Demonstration of Reduced Reliance on Water Supplies from the Delta Watershed Water suppliers are required to report on the expected outcomes for measurable reductions in water supplies from the Delta watershed. For CMWD, the only potential source of water from the Delta watershed is water purchased from the Water Authority via MWD. Because water provided by the Water Authority via MWD can include supplies that comingle Delta watershed and other supplies, the Water Authority (and therefore CMWD) has incorporated the MWD’s forecast in its entirety as a reasonable methodology to forecast the percent of MWD water supply from the Delta watershed and the CVP/SWP. Table 2 calculates the reduced reliance on the Delta watershed within the entirety of the MWD service area, to serve as a regional approach for this requirement.4 3 2025 UWMP, San Diego County Water Authority, March 2026, Appendix J, Table 3. 4 Draft 2025 UWMP, Metropolitan Water District of Southern California, February 2026, Appendix 10, Table A.10-3. May 12, 2026 Item #10 Page 369 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 Table 2 – Calculation of Reliance on Water Supplies from Delta Watershed 5 The CVP/SWP contract supplies in Table 2 include MWD's SWP Table A and Article 21 supplies. The values in Table 2 do not include Desert Water Agency/ Coachella Valley Water District SWP contract supplies, nor do they include supplies from San Luis Carryover storage or Central Valley storage programs. The transfers and exchanges of supplies from the Delta watershed shown in Table 2 include supplies from the San Bernardino Valley MWD Program, Yuba River Accord Purchase Program, the San Gabriel Valley MWD Program, Irvine Ranch Water District Storage and Exchange Program, and other generic SWP and Central Valley transfers and exchanges. Additional information can be found in Section 3.2 and Appendix 10 of MWD's Draft 2025 UWMP.6 5 Ibid., p. A. 10-9. 6 Ibid., p. A. 10-8. May 12, 2026 Item #10 Page 370 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366 9665 Chesapeake Drive, Suite 320 San Diego, CA 92123 (800) 426-4262 woodardcurran.comMay 12, 2026 Item #10 Page 371 of 736 Docusign Envelope ID: B59C0B04-D741-436B-B590-41CAEE92C366