HomeMy WebLinkAbout2019-09-24; City Council; ; Authorizing the Legally Responsible Official to re-certify the Sewer System Management Plan and submit to the State Water Resources Control BoardCITY COUNC I L
Staff Report
Meeting Date:
To:
From:
Staff Contact:
Sept.24,2019
Mayor and City Council
Scott Chadwick, City Manager
Stephanie Harrison, Utilities Asset Manager
stephanie.harrison@carlsbadca.gov or 760-603-7338
Vicki Quiram, Utilities Director
vicki.quiram@carlsbadca.gov or 760-438-2722
CA Review fl L Gr:
Subject: Authorizing the Legally Responsible Official to re-certify the Sewer System
Management Plan and submit to the State Water Resources Control Board
Recommended Action
Adopt a Resolution authorizing the Legally Responsible Official (LRO) to re-certify the Sewer
System Management Plan (SSMP) and submit to the State Water Resources Control Board
(SWRCB).
Executive Summary
The purpose of the SSMP is to protect public health and safety, and the environment. The SSMP
is a document that the city submits to the SWRCB with its plan to manage, operate and
maintain all portions of the city's wastewater collection system in a manner that meets all state
and federal regulations, minimizes sanitary sewer overflows, provides adequate capacity to
convey wastewater flows, cost effectively manages infiltration and inflow (1/1) and minimizes
the impacts of wastewater discharge into the environment. The 2019 SSMP is in full compliance
with SWRCB's Waste Discharge Requirements (State Board WDRs) for sanitary sewer systems.
Revisions to the SSMP were recently completed and several elements were updated. Section
D.14 of Order No. 2006-0003-DWQ (Order), the Statewide General Waste Discharge
Requirements for Sanitary Sewer Systems, requires the City Council, as the governing board of
the city's wastewater division, to approve the updated SSMP and to authorize staff to re-certify
and submit the SSMP to the SWRCB.
Discussion
On May 2, 2006, the SWRCB promulgated the Order to comply with Section 13267 of the
California Water Code. All public agencies that own or operate sanitary sewer systems greater
than one mile in length or which collect and/or convey wastewater to a publicly-owned
treatment works, are required to comply with the Order.
September 24, 2019 Item #6 Page 1 of 8
The Order required that the city develop an SSMP and make it available to the public, to the
SWRCB and the San Diego Regional Water Quality Control Board (Regional Board). On July 21,
2009, City Council adopted Resolution No. 2009-192, approving the city's first SSMP. The Order
further required that the SSMP be audited at least every two years, and re-certified bithe
governing board at least every five years from adoption. On Nov. 21, 2014, City Council adopted
Resolution No. 2014-251, approving the first update to the city's SSMP.
The Order requires the city to request City Council approval when there are significant changes
to the plan. The SSMP was updated to be more specific and reflect the significant program
improvements that have been implemented by the wastewater division over the last five years.
The wastewater division has implemented progressive asset management programs, utilizes
performance management with metrics that inform operations, collects data using mobile
devices and performs analyses to identify issues and make improvements, has a comprehensive
sewer cleaning and condition inspection program, and recently updated its sewer master plan .
The SSMP continues these efforts and moves the utility forward for continuous improvement. A
summary ofthe revisions to the SSMP is attached as Exhibit 3. .. _
Based on analysis of the sanitary sewer overflow (SSO) trends between Jan. 1, 2016 through
Dec. 31, 2019 and the results of the SSMP audit, the city's overall program for managing the
sewer systems is very effective and continues to operate at a high level of performance.
The updated SSMP is ready for approval and submission to the state. The SWRCB Order
requires that all reports be certified and submitted electronically by either a principal executive
officer, a ranking elected official, or a duly authorized representative of the city that has
responsibility for the overall operation of the regulated activity, the LRO. On Oct. 21, 2014, City
Council adopted Resolution No. 2014-251, which authorized the utilities director and utilities
manager to serve as LROs for the City of Carlsbad.
Staff recommends that City Council approve the SSMP and authorize the previously designated
LROs to re-certify the SSMP and submit to the SWRCB.
Fiscal Analysis
Preparation and implementation activities for the SSMP are funded in the wastewater
operating budget. There are no additional fiscal impacts associated with the SSMP updates and
audit.
Next Steps
After City Council approval and authorization, the SSMP will be re-certified and submitted to
the SWRCB and posted on the city's website.
Environmental Evaluation {CEQA)
The proposed action qualifies as a Class 1 Categorical Exemption pursuant to Section 15301(b)
of the California Environmental Quality Act (CEQA) Guidelines. This exemption applies to the
operation, repair, maintenance, or minor alteration of existing public or private structures,
facilities, and the mechanical equipment involving negligible or no expansion of use beyond
that existing at the time of the lead agency's determination. Section b lists existing facilities that
September 24, 2019 Item #6 Page 2 of 8
are publicly-owned that are used to provide sewer services as being exempt from
environmental review.
Public Notification and Outreach
This item was noticed in accordance with the Ralph M. Brown Act and was available for public
viewing and review at least 72 hours prior to the scheduled meeting date. A copy of the SSMP is
available for review in the office of the city clerk.
Exhibits
1. City Council Resolution.
2. Prior City Council Actions.
3. Summary of Revisions to the SSMP.
4. Sewer System Management Plan (on file in the office of the city clerk).
September 24, 2019 Item #6 Page 3 of 8
RESOLUTION NO. 2019-190
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD,
CALIFORNIA, AUTHORIZING THE LEGALLY RESPONSIBLE OFFICIAL TO RE-
CERTIFY THE SEWER SYSTEM MANAGEMENT PLAN AND SUBMIT TO THE
STATE WATER RESOURCES CONTROL BOARD
WHEREAS, the City Council of the City of Carlsbad, California has determined it necessary,
desirable and in the public interest to update the Sewer System Management Plan (SSMP); and
WHEREAS, on May 6, 2006, the SWRCB adopted a permit called Order No. 2006-0003 -
Statewide General Waste Discharge Requirement for Sanitary Sewer Systems (Statewide WDR), which
requires public agencies that own or operate sanitary sewer systems to comply with the permit; and
WHEREAS, on Nov. 6, 2007, City Council adopted Resolution No. 2007-282, approving the
Development Plan and Schedule for the SSMP; and
WHEREAS, on Sept. 9, 2013, the State Water Resources Control Board (SWRCB) adopted Order
No. WQ2013-0058-EXEC -amending Monitoring and Reporting Program for Statewide General Waste
Discharge Requirement for Sanitary Sewer Systems; and
WHEREAS, on July 21, 2009, City Council adopted Resolution No. 2009-192, approving updates
to the SSMP and authorizing staff to certify the city's Program to Implement the SSMP and to submit
the report to the SWRCB; and
WHEREAS, staff has recently reviewed, updated and audited the city's SSMP.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Carl_sbad, California, as
follows:
1. That the above recitations are true and correct.
2. That the City Council approves the updated SSMP, a copy of which is on file at the office
of the city clerk.
3. That the City Council authorizes the Utilities Director and Utilities Manager to serve as
the Legally Responsible Official (LRO), to certify the city's program, implement the SSMP and submit
applicable reports to the SWRCB.
PASSED, APPROVED AND ADOPTED at a Regular Meeting of the City Council of the City of
Carlsbad on the 24th day of September 2019, by the following vote, to wit:
September 24, 2019 Item #6 Page 4 of 8
AYES: Hall, Blackburn, Bhat-Patel, Schumacher.
NAYS: None.
ABSENT: Hamilton.
<tJf:~ /-lee/Qr bQm,z, DepnJ
{of BARBARA ENGLESON, City Clerk C/-!j
(SEAL) C /er Jf
September 24, 2019 Item #6 Page 5 of 8
EXHIBIT 2
PRIOR CITY COUNCIL ACTIONS
1. On Oct. 21, 2014, City Council adopted Resolution No. 2014-251, authorizing the Legally
Responsible Official to re-certify the Sewer System Management Plan (SSMP) and submit the
SSMP to the State Water Resources Control Board (SWRCB).
2. · On July 21, 2009, City Council adopted Resolution No. 2009-192, approving the City SSMP and
authorizing staff to certify the City's Program to implement the SSMP arid to submit the report
to the SWRCB.
3. On Sept. 23, 2008, City Council adopted Ordinance No. CS-010, amending Title 13, regulating
Fats, Oil and Grease Program (FOG).
4. On Nov. 6, 2007, City Council adopted Resolution No. 2007-282, approving the Development
Plan and Schedule for the SSMP.
5. On July 24, 2007, City Council adopted Ordinance No. NS-851, amending Title 13, Chapter 13.04,
of the Carlsbad Municipal Code pertaining to Sewer Laterals.
RELEVANT STATE REGULATIONS
1. SWRCB Order No. WQ2013-0058-EXEC, amending Monitoring and Reporting Program for
Statewide General Waste Discharge Requirements for Sanitary Sewer Systems
2. SWRCB Order No. 2006-0003-DWQ, Statewide General Waste Discharge Requirements for
sanitary sewer systems.
3. Porter-Cologne Water Quality Control Act, California Water Code, Division 7, section 13267.
September 24, 2019 Item #6 Page 6 of 8
EXHIBIT 3
Summary of Revisions to the Sewer System Management Plan (SSMP)
SSMP Section Description of Changes
Section 1 -Goal Updated to include:
and Overview
• the City's sewer system management goals and their relationship to the City's overall
goals and values
• specific operating objectives moved into the relevant SSMP sections for operation and
maintenance, capacity assurance and Sanitary Sewer Overflow (SSO) response
• a new subsection providing an overview of the sewer system
Section 2 -Updated to include:
Organization
• an organizational chart for the SSMP program showing key positions responsible for
implementation of elements of the program and lines of authority
• designation of the Wastewater Supervisor to serve as a backup Legally Responsible
Official (LRO) when the primary LRO (Wastewater Manager) is not available
• removal of sections related to SSO reporting, as they are covered in the Overflow
Emergency Response Plan section
Section 4-Updated to include:
Operations and
Maintenance • the processes the City employs to keep system mapping up to date
Program • additional detail regarding the City's use of manhole inspection data to identify
manhole repair needs and the force main inspection and preventive maintenance
program
• a description of the rehabilitation planning processes including the use of decision
logic and risk assessment
Section 6-Updated to include:
Overflow
Emergency • a definition for Private Lateral Sewage Discharge
Response Plan • additional detail for initial response activities
• distinctions between response actions during regular work hours and after work hours
• procedures for cleaning pipes upstream and downstream of blocked pipe segments
• protocols for post-SSO closed caption television (CCTV) inspection
• update of water quality monitoring protocols
• update of Post-SSO Review protocols
• update of contact information
September 24, 2019 Item #6 Page 7 of 8
EXHIBIT 3
SSMP Section Description of Changes
Section 8-
System
Updated to include:
Evaluation and • reference to the SSMP assessment criteria
Capacity • recent efforts to update the hydraulic model
Assurance Plan
• outcomes of the recent master plan update process
Section 9-Updated to include:
Monitoring,
Measurement, • highlights of the City's best practices in collection system performance management
and Program
Modifications
Section 10-Updated to include:
SSMP Program
Audits • description of cu rrent Program Auditing practices
• Program Audit schedule for future audits
Section 11-Updated to include:
Communication
Program • description of the local Member Agency Managers meeting and Collection Managers
Meeting, which provide opportunities for communicating issues with neighboring
agencies and fostering collaboration and interagency assistance
• description of the current outreach practices employed by the City
September 24, 2019 Item #6 Page 8 of 8
City of Carlsbad
Sewer System
Management Plan
2019 SSMP Update
Carlsbad, CA July 10, 2019
Sewer System Management Plan
2019 SSMP Update
July 10, 2019 | i
Contents
1 Goal and Overview .............................................................................................................................. 1
1.1 Goal ........................................................................................................................................... 1
1.2 SSMP Overview ........................................................................................................................ 1
1.3 System Overview ...................................................................................................................... 2
1.4 Regulatory Context .................................................................................................................... 2
1.4.1 Summary of State Board WDRs .................................................................................. 3 1.4.2 Summary of Regional Board WDRs ............................................................................. 3
1.5 Application for Coverage Under the State Board WDRs .......................................................... 4
2 Organization ........................................................................................................................................ 5
2.1 Overview.................................................................................................................................... 5
2.2 Authorized Representative ........................................................................................................ 5
2.3 Positions Responsible for Implementing SSMP Program ......................................................... 6
2.4 Chain of Communication for Reporting SSOs........................................................................... 7
3 Legal Authorities .................................................................................................................................. 9
3.1 Municipal Code .......................................................................................................................... 9
3.1.1 Authority to Prevent Illicit Discharges ......................................................................... 10 3.1.2 Authority to Ensure Access for Maintenance, Inspection or Repairs for
Portions of Lateral Owned or Maintained by the City ................................................. 11 3.1.3 Authority to Limit Discharge of Fats, Oils and Grease or Other Debris ..................... 11
3.2 Authority to Require Proper Design and Construction of Sewers and Connections ............... 11
4 Operations and Maintenance Program ............................................................................................. 12
4.1 Sanitary Sewer System Mapping ............................................................................................ 12
4.2 Preventive Maintenance Program ........................................................................................... 12
4.2.1 Preventive Maintenance Program .............................................................................. 12 4.2.2 Information Management ........................................................................................... 16
4.3 Rehabilitation and Replacement Planning .............................................................................. 16
4.3.1 Risk-Based Prioritization ............................................................................................ 16 4.3.2 Condition Assessment and Remediation Decision-Making ....................................... 17 4.3.3 Capital Improvement Plan .......................................................................................... 17
4.4 Training Program ..................................................................................................................... 17
4.5 Equipment and Replacement Part Inventories........................................................................ 18
5 Design and Performance Provisions ................................................................................................. 19
5.1 Design and Construction Standards and Specifications ......................................................... 19
5.1.1 Standards for Gravity Sewers .................................................................................... 19 5.1.2 General Guidelines for Sewer Force Mains ............................................................... 19 5.1.3 General Guidelines for Sewer Lift Stations ................................................................ 20 5.1.4 Standard Drawings ..................................................................................................... 20
5.2 Procedures and Standards for Inspection and Testing ........................................................... 20
6 Overflow Emergency Response Plan ............................................................................................... 22
6.1 Summary of the Overflow Emergency Response Plan Sections ............................................ 22
6.2 Contractor Spill Prevention and Emergency Response Plans ................................................ 25
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ii | July 10, 2019
7 Fats, Oils, and Grease Control Program ........................................................................................... 26
7.1 Public Education Outreach Program ....................................................................................... 26
7.2 Acceptable Disposal Locations ............................................................................................... 26
7.3 FOG Legal Authorities ............................................................................................................. 26
7.3.1 Authority to Prohibit FOG Discharges ........................................................................ 27 7.3.2 Authority to Inspect Grease Producing Facilities ....................................................... 27 7.3.3 Enforcement Authorities ............................................................................................. 27
7.4 FOG Program Requirements .................................................................................................. 28
7.4.1 Best Management Practice, Record-Keeping and Reporting Requirements............. 28 7.4.2 Grease Control Device Requirements ....................................................................... 28
7.5 Preventive Maintenance Program to Address FOG Accumulation ......................................... 28
7.6 Source Control Measures for All Sources of FOG Discharged ............................................... 29
7.7 FOG Program Staffing ............................................................................................................. 29
8 System Evaluation and Capacity Assurance Plan ............................................................................ 30
8.1 Evaluation to Identify Potential Hydraulic Deficiencies ........................................................... 30
8.2 Design Criteria ......................................................................................................................... 31
8.3 Capacity Enhancement Measures .......................................................................................... 31
8.4 Schedule for Completion of Capital Program .......................................................................... 31
9 Monitoring, Measurement, and Program Modifications .................................................................... 33
9.1 Collection and Management of Relevant Data ....................................................................... 33
9.2 Active Performance Management of SSMP Program Effectiveness ...................................... 34
9.3 Assessment of Preventive Maintenance Program Success and SSO Trends ....................... 35
9.4 Program Updates Driven by Performance Monitoring ............................................................ 36
10 SSMP Program Audit and SSMP Updates ....................................................................................... 37
10.1.1 SSMP Program Audit Process ................................................................................... 37 10.1.2 Audit Implementation and Tracking of Results .......................................................... 37
10.2 SSMP Update Process ............................................................................................................ 38
11 Communication Plan ......................................................................................................................... 39
11.1 Communication with the Public ............................................................................................... 39
11.2 Communication with Tributary or Satellite Systems ................................................................ 39
Tables
Table 1-1: Summary of State Board WDRs and Monitoring and Reporting Program Requirements ........... 3
Table 3-1: Summary of Legal Authorities ...................................................................................................... 9
Table 6-1: Linkage between Overflow Response Requirements and Overflow Emergency Response Plan ............................................................................................................................... 22
Table 7-1: Summary of FOG Source Control and Enforcement Legal Authorities ..................................... 26
Table 9-1: Information Systems Used to Collect, Store and Analyze Relevant SSMP Program Data ................................................................................................................................................ 34
Table 9-2: Multi-Layered Performance Management Framework .............................................................. 35
Table 10-1: SSMP Audit and Update Schedule .......................................................................................... 37
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Figures
Figure 2-1: SSMP Program Implementation Organization Chart.................................................................. 6
Attachments
ID Attachment Title
A1 State Board’s Order No. 2006-003, Statewide General Waste Discharge Requirements for Sanitary Sewer Systems
A2 State Of California Water Resources Control Board, Order No. WQ 2013-0058-EXEC, Amending Monitoring And Reporting Program for Statewide General Waste Discharge Requirements for Sanitary Sewer Systems
A3 California Regional Water Quality Control Board, Region 9, Order R9-2007-0005 entitled Waste Discharge Requirements for Sewage Collection Agencies in the San Diego Region
B SSO Response, Notification and Reporting Workflow
C Reserved
D Asset Management Master Plan
E Reserved
F1 Overflow Emergency Response Plan
F2 Example Spill Prevention and Emergency Response Plan
G Reserved
H Reserved
I Reserved
J SSMP Program Audit Report, April 2019
K Reserved
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Table of Acronyms and Abbreviations
Acronym or Abbreviation Definition
BMP Best Management Practice
BOD Biochemical oxygen demand
CCTV Closed-circuit television
CIP Capital improvement program
CIPP Cured-in-place pipe
CIPP Cured-in-place pipe
City City of Carlsbad
CIWQS California Integrated Water Quality System
CM Corrective maintenance
DnMH Downstream manhole
EWA Encina Wastewater Authority
FOG Fats, oils, and grease
GBMP Grease best management practices
GCD Grease control device
GCDI Grease control device inspection
GIS Geographical information system
HOA Homeowner’s Association
LRO Legally Responsible Official
MAM Member Agency Meeting
Muni Code Municipal Code
NASSCO National Association of Sewer Service Companies
PACP Pipeline Assessment and Certification Program
PM Preventive maintenance
R9 San Diego Regional Water Quality Control Board
SCADA Supervisory Control and Data Acquisition
SSMP Sewer System Management Plan
SSO Sanitary sewer overflow
State Board State Water Resources Control Board
State Board WDRs State Water Resources Control Board Waste Discharge Requirements
SWRCB State Water Resources Control Board
UpMH Upstream manhole
WDID Wastewater Discharger Identification Number
WDRs Waste Discharge Requirements
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1 Goal and Overview
1.1 Goal
The goal of this Sewer System Management Plan (SSMP) is to provide a plan and
schedule to properly manage, operate, and maintain all parts of the City of Carlsbad’s
sewer system. The overall goal of the City’s SSMP program implementation is to prevent
and minimize sewer overflows and mitigate SSOs that do occur. Specific goals of our
SSMP program implementation are as follows:
• Protect public health and safety, and the environment
• Properly manage, operate and maintain all portions of the City’s wastewater
collection system to minimize SSOs
• Provide adequate capacity to convey peak wastewater flows associated with the
City’s design storm event
• Cost effectively manage infiltration/inflow (I/I)
• Involve employees involved in collection system program implementation in the
strategic planning process for the collection system
• Perform all operation and maintenance activities in a safe manner
1.2 SSMP Overview
This SSMP is in full compliance with the State Water Resources Control Board’s Waste
Discharge Requirements (State Board WDRs)1 for sanitary sewer systems and meets
the following objectives:
a) Properly fund, manage, operate and maintain, with adequately trained staffs
and/or contractors possessing adequate knowledge, skills, and abilities, all parts
of the collection system owned and/or operated by the City.
b) Provide adequate capacity to convey base flows and peak flows, including flows
during wet weather events, to the minimum design criteria as defined in the City’s
System Evaluation and Capacity Assurance Plan (a required component of the
SSMP), for all parts of the collection system owned and/or operated by the City.
c) Take all feasible steps to stop and mitigate the impact of SSOs in the collection
system owned and/or operated by the City.
The City achieves these objectives by implementing a comprehensive sewer
infrastructure asset management program that is documented in the following 11 SSMP
elements:
1. Goal and Overview
1 This refers to State Board’s Order No. 2006-003, Statewide General Waste Discharge Requirements for Sanitary Sewer Systems.
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2. Organization
3. Legal Authority
4. Operation and Maintenance Program
5. Design and Performance Provisions
6. Overflow Emergency Response Plan
7. FOG Control Program
8. System Evaluation and Capacity Assurance Plan
9. Monitoring, Measurement, and Program Modifications
10. SSMP Program Audits
11. Communication Program
This SSMP integrates documentation of numerous collection system management
programs into one formal document. These programs are described in greater detail in a
variety of documents, which are referenced in this SSMP when appropriate.
1.3 System Overview
The City of Carlsbad sanitary sewer system consists of:
• 265 miles of gravity mains
• 3.9 miles of force mains
• 11 sewer lift stations
Carlsbad is located in North County, San Diego County. The City is 87 miles south of Los
Angeles and 35 miles north of downtown San Diego and is part of the San Diego-
Carlsbad, CA Metropolitan Statistical Area. It is a tourist destination referred to as “The
Village by the Sea” by locals. The City contains three (3) lagoons, one (1) lake and
borders over 3 miles of Pacific Ocean coastline.
1.4 Regulatory Context
The City is required to comply with the State Board WDRs adopted May 2, 2006. The
Order, and associated Monitoring and Reporting Program (MRP) requirements are
included as Attachment A1 (Order) and Attachment A2 (MRP) and additional
information can be found at:
https://www.waterboards.ca.gov/water_issues/programs/sso.
The City is also required to comply with California Regional Water Quality Control Board,
Region 9, Order R9-2007-0005 entitled Waste Discharge Requirements for Sewage
Collection Agencies in the San Diego Region (Regional Board WDRs). The Regional
Board WDRs are included as Attachment A3. Additional information regarding the
Region 9 Regional Board WDRs can be found at:
https://www.waterboards.ca.gov/sandiego/publications_forms/general_orders.html.
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2019 SSMP Update
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1.4.1 Summary of State Board WDRs
Table 1-1 summarizes the State Board WDRs and associated monitoring and reporting
requirements under which the collection system operates and that are addressed by this
SSMP2. All agencies that own and operate collection systems greater than one mile in
length must comply with these requirements. In addition, Section C of the State Board
WDRs prohibits sanitary sewer overflows (SSOs) to waters of the United States and
SSOs that cause a nuisance per the California Water Code Section 13050(m).
Table 1-1: Summary of State Board WDRs and Monitoring and Reporting Program
Requirements
Provisions Description Applies to
D.3-5, 7 SSO prevention, response, and control Element 4, Operation and Maintenance Program; Element 6, Overflow Emergency Response Plan; Element 7, FOG Control Program; Element 8, System Evaluation and Capacity Assurance Plan
D.8-9 System operations and maintenance, adequate resource allocation, appropriate training, knowledge, and abilities
Element 4, Operation and Maintenance Program
D.10 Adequate capacity for base, peak, and wet weather flows Element 8, System Evaluation and Capacity Assurance Plan
D.11, 13-14 SSMP requirement, content, update and certification All Elements of SSMP
D.12 Use of qualified professionals for engineering and geological evaluations and judgments
Element 5, Design and Performance Provisions
Monitoring and
Reporting
Requirements
SSO reporting and notification; water quality monitoring; change log
Element 6, Overflow Emergency Response Plan; Water Quality Monitoring Plan; SSMP Revision Log
1.4.2 Summary of Regional Board WDRs
On February 14, 2007, the San Diego Regional Water Quality Control Board issued the
Regional Board WDRs, which include additional requirements more stringent than the
State Board WDRs. The Regional Board WDRs reaffirms the prohibition of all SSOs
upstream of a sewage treatment plant. The Regional Board WDRs also references the
Water Quality Control Plan (Basin Plan), adopted by the Regional Board, which
designates beneficial uses, narrative, and numerical water quality objectives, and
prohibitions which are applicable to the discharges prohibited in the Regional Board
WDRs. The Regional Board WDRs also requires notification and reporting of Private
Lateral Sewage Discharges.
2 Summarized from the SWRCB Order No. 2006-0003-DWQ Statewide General Waste Discharge Requirements for Sanitary Sewer Systems, Section D
“Provisions”.https://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2006/wqo/wqo2006_0003.pdf
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1.5 Application for Coverage Under the State Board WDRs
The City applied for coverage under the general Waste Discharge Requirements (WDRs)
in 2006 for one collection system and was assigned a Wastewater Discharger
Identification Number (WDID) of 9SSO11209 in the California Integrated Water Quality
System (CIWQS).
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2 Organization
2.1 Overview
The City of Carlsbad is a charter city operating with a “Council-Manager” system. The
City Council sets policy guidelines for the city and those guidelines are carried out under
the supervision of the City Manager. The sanitary sewer system is managed by the
Wastewater Manager in the Utilities section of the Public Works Department.
2.2 Authorized Representative
The City has designated a primary Legally Responsible Official (LRO) pursuant to
Section J., REPORT DECLARATION, of the State General Waste Discharge
Requirements (Order No. 2006-0003).
Primary LRO
Mr. Don B. Wasko, Wastewater Manager
5950 El Camino Real
Carlsbad, CA 92028
(760) 438-2722
Don.Wasko@carlsbadca.gov
Secondary LRO
Mr. Jesse Castaneda, Operations Supervisor
5950 El Camino Real
Carlsbad, CA 92028
(760) 438-2722
Jesse.Castaneda@carlsbadca.gov
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2.3 Positions Responsible for Implementing SSMP
Program
Figure 2-1 is an organization chart showing the lines of authority for key positions
responsible for implementing various elements of the SSMP program.
Figure 2-1: SSMP Program Implementation Organization Chart
A summary for key positions, including the personnel responsible for responding to and
reporting SSOs, is presented below.
• City Council – responsible for approval of funding requests and the Sewer System
Management Plan.
• City Manager - responsible for establishing and communicating high level policy
relating to the outcomes of the SSMP.
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• Chief Operations Officer – responsible for direct oversight of operating departments
responsible for SSMP development and implementation.
• Public Works Director – work as liaison between Carlsbad senior management and
Utilities.
• Utilities Director - responsible for establishing and communicating high level policy
relating to the outcomes of the SSMP.
• Utilities Manager -responsible for the development and implementation of the
SSMP as well as planning, organizing and directing the activities of the work units
through the Superintendents and Supervisors.
• Operations Supervisor – notifies the Sanitation System Operator I-III, Utility Worker
I-III or Wastewater Duty Operator when alerted to a potential SSO. During working
hours, oversees reporting and notification of SSOs, manages field operations and
maintenance activities, provides relevant information to agency management,
prepares and implements contingency plans, leads emergency response,
investigates and reports SSO, and trains field crews.
• Wastewater Operator I-III and Utility Worker I-III (may also be the Wastewater
Duty Operator) - responsible for the day-to-day work activities to clean and maintain
the collections system. If after hours, notifies the Supervisor and Superintendent
when alerted to a potential SSO.
• Utilities Asset Manager – responsible for implementing assessment, evaluation,
decision-making and controls processes for asset monitoring, repair, rehabilitation
and replacement. Responsible for specifying mid-term and long-term asset
monitoring, repair, rehabilitation and replacement. Responsible for project
management for sewer system condition assessment and rehabilitation activities.
• Utilities Maintenance Planner/Scheduler – responsible for planning and
scheduling sewer system maintenance activities including sewer cleaning, closed
circuit television inspection, sewer repair and pump station maintenance.
Responsible for reviewing and modifying maintenance frequency and methods.
• Engineering Manager – responsible for managing the execution of the City’s capital
improvement program including the development of design standards, specifications,
construction inspection and construction management of sewer system capital
improvements.
• Management Analyst – has an understanding of the City’s services, policies and
procedures, and in multiple areas of federal, state and local laws, codes and
regulations affecting multiple, complex areas. Knowledge of principles of
organization, administration, budgeting and human resources management.
2.4 Chain of Communication for Reporting SSOs
The chain of communication for reporting and notification of sanitary sewer overflows is
documented in detail in the Overflow Emergency Response Plan. A detailed workflow for
the sanitary sewer overflow response is provided as Attachment B. Key positions
described in the workflow include:
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Utilities Receptionist: The Utilities Receptionist receives complaint calls during Normal
Working Hours and forwards these calls to the Utilities Admin.
Utilities Admin: The Utilities Admin receives SSO complaints during Normal Working
Hours and contacts the Utilities Supervisor to determine the appropriate crew to dispatch
to investigate.
First Responder: The First Responder is the first crew dispatched to investigate the
SSO. Once the First Responder verifies an SSO is occurring, the First Responder
requests additional resources, if needed.
Spill Response Crew Lead: The Spill Response Crew Lead is the most senior collection
system maintenance crew member on-site at the spill event. The Spill Response Crew
Lead is responsible for leading spill response activities and documentation of the spill
event.
Police Department Dispatch: The Police Department Dispatch is responsible for
receiving customer complaints during After Hours and will contact the Construction
Maintenance Duty when notified of a spill during After Hours.
Construction Maintenance Duty: The Construction Maintenance Duty is responsible for
investigating spill complaints during After Hours and will request support from the
Collections Duty when an SSO is verified.
Collections Duty: The Collections Duty will respond to an SSO during After Hours when
requested by the Construction Maintenance Duty or Utilities Supervisor.
Wastewater Operations Crew: The Wastewater Operations Crew responds to pump
station alarms and pump station-related SmartCover alarms. The Wastewater
Operations Crew will notify the Wastewater Operations Lead when an alarm occurs.
Wastewater Operations Lead: The Wastewater Operations Lead notified the Utilities
Supervisor when a pump station alarm occurs.
Utilities Supervisor: The Utilities Supervisor designates the SSO response crew during
the day. The Utilities Supervisor is responsible for draft SSO reporting in CIWQS. The
Utilities Supervisor is responsible for SSO notifications to OES, Regional Board, and
other stakeholders. The Utilities Supervisor is designated as an Onsite Manager in
CIWQS and can certify SSO reports.
Utilities Manager: The Utilities Manager is responsible for certifying SSO reports in
CIWQS.
Normal Working Hours are 8:00 a.m. to 5:00 p.m. on Monday through Friday, except
holidays. After Hours are 5:00 p.m. to 8:00 a.m. on Monday through Friday as well as
weekends and holidays.
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3 Legal Authorities
The City’s legal authorities are primarily contained in the City’s municipal code and the
City’s engineering standards. Table 3-1 summarizes the source of the City’s legal
authorities for each of the legal authorities required by the WDRs.
Table 3-1: Summary of Legal Authorities
Requirement Source of Authority
GENERAL
Prevent illicit discharges into the wastewater collection system Muni Code 13.04.050
Limit the discharge of fats, oils, and grease and other debris that may cause blockages Muni Code 13.04.050; 13.06.010
Require that sewers and connection be properly designed and constructed Engineering Standards, Volume1, Chapter 6 – Design Criteria for Gravity Sewer Line and Appurtenances
Require proper installation, testing, and inspection of new and rehabilitated sewers Engineering Standards, Volume 3, Chapter 6 – Construction Specifications
LATERALS
Clearly define City lateral responsibility and policies Muni Code 13.04.45
Ensure access for maintenance, inspection, or repairs for portions of the service lateral owned or maintained by the City City does not own any portion of the laterals.
Control infiltration and inflow (I/I) from private service laterals Muni Code13.040.050
FOG SOURCE CONTROL
Installation of grease removal device (GRE) Muni Code 13.06.040
Design standards for GRE Muni Code 13.06.090 (Interceptor) Muni Code 13.06.100 (Trap)
Maintenance and BMP requirements Muni Code 13.06.100; 13.06.120; and 13.06.130
Record keeping and reporting Muni Code 13.06.140
Authority to inspect grease producing facilities Muni Code 13.06.150; and 13.06.160
ENFORCEMENT
Enforce any violations of sewer ordinances Muni Code 13.04.080
3.1 Municipal Code
City of Carlsbad, Municipal Code, Chapter 13 (Sewers) provides the City with the
majority of the legal authorities required by the WDRs and can be found on the City’s
webpage at:
http://www.carlsbadca.gov/cityhall/clerk/municipalcode/municipalcode.asp
This Municipal Code sets conditions and limitations on the use of the City’s sewer
system and outlines provisions for enforcement for noncompliance with the City’s
Municipal Code. The provisions of the Municipal Code apply to sewer construction, use,
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maintenance, discharge, deposit, or disposal of wastewater into and through the City’s
collection systems and the issuance of fees, fines and penalties thereof. This Chapter of
the Municipal Code applies to all users of the City’s sewer system and specifies herein
that all users of the City’s sewer system are subject to regulation and enforcement.
3.1.1 Authority to Prevent Illicit Discharges
Section 13.04.050 of the City’s municipal code prohibits illicit discharges. Key
prohibitions impacting sewer system operation include:
• Discharge of storm water, surface water, groundwater, unpolluted industrial
process water, roof runoff, subsurface drainage, or any waters from an
uncontaminated cooling system, swimming pool, decorative fountain or pond,
into any public sewer or any private sewer which is connected to the public sewer
without written permission in conformance with adopted regulations.
• No person shall enter, obstruct, uncover or tamper with any portion of the public
sewer, or connect to it, or dispose anything into any sewer and/or sewer manhole
without the written permission of the utilities director.
• No person shall fill or backfill over, or cause to cover, or obstruct access to, any
sewer manhole.
Key prohibitions of illicit discharges that could potentially impact sewer system operation
include:
• Liquid or vapor having a temperature higher than 140 degrees Fahrenheit;
• Water or waste containing substances which may solidify or become viscous at
temperatures between 32 degrees and 150 degrees Fahrenheit;
• Gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid
or gas;
• Toxic, noxious or malodorous liquid, solid, or gas deemed a public hazard and
nuisance;
• Garbage that has not been properly shredded to a size of one-fourth inch or less
so that all particles will be carried freely under normal flow conditions in the
public sewers;
• Ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar,
plastics, wood, paunch manure, paper substances or normally dry, solid wastes
capable of causing obstruction to the flow in or damage to sewers or other
interference with the proper operation of the sewerage works;
• Water or wastes having a pH lower than 5.5 or higher than 9.5 or having any
other corrosive property capable of causing damage or hazard to structures,
equipment, and personnel of the sewerage works;
• Water or wastes containing any substance in sufficient quantity to discolor, injure,
disrupt or interfere with the normal operation of any sewage treatment process,
constitute a hazard to human or animal life, create a public nuisance, or
significantly lower the quality of the receiving waters;
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3.1.2 Authority to Ensure Access for Maintenance, Inspection or Repairs
for Portions of Lateral Owned or Maintained by the City
The City does not own any portion of the sewer laterals connecting to the public sewer
mains. Section 13.04.45 of the City’s municipal code clearly states maintenance of sewer
laterals is the responsibility of the property owner or parcel occupant/user.
3.1.3 Authority to Limit Discharge of Fats, Oils and Grease or Other
Debris
Section 13.04.050 of the City’s municipal code prohibits the discharge of fats, oils and
grease and other debris through the following general prohibitions:
• Water or waste containing substances which may solidify or become viscous at
temperatures between 32 degrees and 150 degrees Fahrenheit;
• Garbage that has not been properly shredded to a size of one-fourth inch or less
so that all particles will be carried freely under normal flow conditions in the
public sewers;
• Ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar,
plastics, wood, paunch manure, paper substances or normally dry, solid wastes
capable of causing obstruction to the flow in or damage to sewers or other
interference with the proper operation of the sewerage works;
Furthermore, Section 13.06.010 of the City’s municipal code prohibits any food service
facility to discharge or cause to be discharged any fats, oils or grease to the sewer
system in concentrations that may result in separation from effluent and adherence to
sewer structures and appurtenances, accumulate and/or cause or contribute to
blockages in the sewer system or at the sewer system lateral which connects the food
service facility to the sewer system.
3.2 Authority to Require Proper Design and Construction
of Sewers and Connections
Section 13.04.050 of the City’s municipal code states that “No person shall enter,
obstruct, uncover or tamper with any portion of the public sewer, or connect to it, or
dispose anything into any sewer and/or sewer manhole without the written permission of
the utilities director.” All connections to the sewer system require City permission and are
managed and inspected by City of Carlsbad Public Works Construction Management
and Inspection.
All public improvements constructed within the City are required to comply with the City’s
Engineering Standards. The City’s Engineering Standards provide a comprehensive set
of standards and design criteria to ensure quality and uniformity of the public
improvements constructed in Carlsbad. The City posts these standards on the City
website at:
http://www.carlsbadca.gov/services/building/codes/lde.asp
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4 Operations and Maintenance Program
4.1 Sanitary Sewer System Mapping
The City of Carlsbad’s Utilities Wastewater Program includes an up-to-date map of the
sewer system, showing all gravity line segments and manholes, pumping facilities,
pressure pipes, as well as a map of all gravity main problem areas. The City of Carlsbad
Utilities field crews have access to up-to-date GIS mapping of stormwater conveyance
infrastructure to help expedite environmental protection in the event of a sewer overflow.
The Utilities Asset Manager oversees the upkeep of sewer system mapping. New capital
improvement projects under development are identified during the planning or permitting
process and input into the geographical information system (GIS) database as a “future”
project. Once capital improvements are constructed, Public Works Engineering provides
“As-Built” drawings to Utilities GIS for final update of the GIS mapping.
Utilities Wastewater field employees also submit corrections to the GIS using mobile
computing devices. The Utilities Operations Supervisor and Utilities Planner/Scheduler
provide requested changes to GIS based on discrepancies identified during CCTV
inspection.
The GIS has a facility identification number (Facility ID) for each individual pipe segment
in the sewer system. Utilities staff track maintenance history by upstream manhole to
downstream manhole (i.e., UpMH-DnMH) and has developed a protocol for splitting
maintenance history in the case a specific asset is divided (e.g., a new manhole is
constructed on an existing pipe segment).
4.2 Preventive Maintenance Program
4.2.1 Preventive Maintenance Program
Gravity Sewer Main Cleaning
The City of Carlsbad routinely cleans all gravity mains 12 inches in diameter and smaller
on a four year rotation. In addition, the City has identified specific sewer pipe segments
with a history of maintenance issues as high priority area gravity mains. High priority
area gravity mains are cleaned either quarterly or semi-annually.
Sewer mains larger than 12 inches in diameter are inspected using closed circuit video
(CCTV) inspection on a five-year rotation and cleaned if operations staff determine the
operation of the system might be impacted by material deposited in the pipe.
Sewer Manhole Visual Inspection
Crews tasked with daily cleaning activities perform visual inspections of each manhole
accessed during work activities. The protocol for sewer cleaning is to open both the
upstream and downstream manhole when cleaning a pipe segment. A work order is
documented for each manhole visual inspection including a rating of the condition of
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components of the manhole and an overall manhole condition score of 1 to 5. The
condition scoring scale ranges from 1 (Excellent) to 5 (Very Poor) The Operations
Supervisor, Planner/Scheduler and Utilities Asset Manager review the results of manhole
visual inspections monthly and flag specific manholes with “poor” or “very poor”
conditions for potential follow-up. Follow-up activities include additional reconnaissance,
repair, or rehabilitation.
Chemical Root Control
The City uses chemical root control on select pipe segments known to have significant
root intrusion. The City evaluates maintenance history to make sure root intrusion is the
sole maintenance risk factor for the pipe segment, will determine where the roots are
intruding into the pipe segment, and will evaluate remediation options with the goal of
choosing the most cost effective maintenance approach. The City applies root control
chemical using in-house crews as needed to control root growth.
Sewer Manhole Flow Level Monitoring
The City uses flow level monitoring at select manhole locations to provide an additional
level of system monitoring and failure detection. The City has several use cases for flow
level monitoring, including:
• Secondary Failure Detection for a Lift Station: The monitor is located upstream of
a lift station and will alarm if flow to the lift station is backing up into the upstream
manhole.
• Monitoring Past Problem Locations: The monitor is placed upstream of past
problem locations that may still pose a failure risk.
• Strategic Monitoring of Sewer Mains in Extended Cleaning Area: The flow level
monitor is strategically located upstream of areas in the extended cleaning area
with suspected overflow risk. This includes monitors in areas near lagoons and
waterways to provide an additional level of monitoring of sewer mains with
potential for high impact failures.
All of the flow-level monitors have intrusion alarms providing a time-stamped log of when
the manhole location of the flow-level monitor is accessed. The data collected by the
flow-level monitors is transmitted via cellular technology to a Cloud database. The data is
accessible by City staff via phone or internet. The City contracts with the flow-level
monitoring vendor to analyze the data and send alarms if the flow level as a specific
location violates the criteria set for that location. The Operations Supervisor, or designee,
is responsible for receiving alarms from the flow-level monitors and dispatching
operations and maintenance staff to investigate the alarm.
Gravity Main Closed Circuit Television Inspection
The City of Carlsbad began a system-wide closed-circuit television (CCTV) inspection of
the gravity main sewer system in 2008 and collected inspection data in CUES defect
coding format for small diameter gravity sewers (12-inch diameter and less) and some
large diameter gravity sewers (greater than 12-inch diameter). In 2017, the City
converted to National Association of Sewer Service Companies (NASSCO) Pipeline
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Assessment Certification Program (PACP) system for gravity sewer inspection.
Inspection of large diameter gravity mains is performed on five-year rotation. The
inspection frequency for small diameter gravity sewer mains is based on risk and
inspection is performed over an 8-year period for the lowest risk pipe. Higher risk pipe,
as determined by inclusion on a high priority cleaning area or based on pipe material, are
planned for inspection more frequently. The City has inspected over 90 percent of the
small diameter sewers and the majority of the large diameter sewers. City staff and
contractors are utilized to perform CCTV inspection. Additionally, the City of Carlsbad
field staff will request CCTV inspection of pipe segments if an issue of concern is
encountered during cleaning activities. Issues of concern include:
• Pieces of pipe wall found during cleaning indicating the possibility of a severe
pipe barrel defect;
• Locations in the pipe where the crew had difficulty in passing with the cleaning
equipment indicating the possibility of a severe offset joint, protruding lateral or
other obstruction.
A CCTV crew may conduct localized video inspections when the cleaning crews’
observations warrant such further investigation.
Lift Station Preventive Maintenance
The City owns, operates and maintains eleven (11) lift stations. Utilities is responsible for
operations and maintenance of the lift stations and performs these duties using three
types of activities: operational inspection, SCADA review, and preventive maintenance.
Lift Station Operational Inspections and SCADA review: Utilities lift station crews
perform sewer lift station checks five days per week for larger lift stations and two days
per week for smaller lift stations by visual inspection, physical inspection and by using
the existing SCADA System for inspection. The visual inspections include a survey of the
station area, log hours and/or flow meter reads. The physical inspections include
checking and hand operating pumps, checking alarms, ventilation, odor chemicals and
scrubbers. The Mission SCADA system monitors for alarm set points. Utilities field crews
review SCADA data regularly to look for trends and identify proactive work. The City is
currently planning a SCADA Master Plan project to plan the upgrade and replacement of
the existing SCADA system with the vision that the future SCADA system will have more
monitoring capabilities and be more useful in detecting deteriorating performance of
equipment.
Lift Station Preventive Maintenance: The Utilities Planner/Scheduler and Operations
Supervisor have implemented an extensive schedule of preventive maintenance
activities with the intent of ensuring lift station equipment perform at acceptable levels
throughout the useful life of the equipment. The Utilities Asset Manager, Utilities
Planner/Scheduler and Operations Supervisor review monthly data collected by lift
station crews and will identify a corrective action if there are indications of potential
maintenance issues. All wet wells are cleaned when the need is identified by lift station
maintenance crews and/or the Operations Supervisor.
Lift Station Corrective Maintenance: Lift station maintenance crews identify the need
for potential corrective maintenance activities during lift station operational inspection
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and while performing preventive maintenance activities. The Utilities Planner/Scheduler
and Operations Supervisor will prioritize corrective maintenance work to address pump
station issues. In general, Utilities lift station crews will perform minor repairs and
rehabilitation, while larger scale pump station issues and needs are delivered using
capital improvements projects.
Force Main Inspection and Maintenance
Force mains are pressurized sewer mains that convey wastewater from lift stations to a
manhole where it can flow by gravity. The City owns approximately 3.9 miles of force
mains. Utilities field crews review SCADA data regularly to identify operational trends
and changes in performance. Issues with force main operation, such as a partial
blockage, are detectable using trending analysis and SCADA review. In some cases it
may also be possible to detect a force main failure if a step change in pumping pressure
or run-time is detected. Utilities field crews also visually inspect the alignment of these
pipelines annually to identify any signs of leakage from the system.
When possible, the City designs force mains to have a continuous uphill slope without
high points so that air-release valves are not required on the force mains. If this is not
possible, the City requires air-release valves on high points of a force main. Utilities field
crews inspect air-release valves quarterly and perform additional maintenance as
needed.
The City has initiated a program to evaluate new methods for assessing force main
condition. The City performed inspections of all force mains using either “smart ball”
technology or CCTV inspection between 2017 and 2018.
Inflow and Infiltration Program
Rainfall results in additional water flows into the sewer system through inflow and
infiltration. Water entering from illicit connections is called inflow. Typical sources include
sump pumps, roof drains, surface runoff and unauthorized storm drain connections.
Inflow also includes flows entering at sewer manholes through pick holes or around the
edges of the manhole cover in cases where stormwater flooding covers a manhole.
Infiltration is when water flows through the soil and enters into a pipeline through pipe
joints, cracks, fractures or other pipeline defects. Infiltration typically occurs for some
period after rainfall events when the soil become saturated, yet can also occur during dry
weather conditions in locations where the groundwater elevation is higher than the sewer
pipe.
The City has an on-going program to detect and address inflow and infiltration issues in
the system. The City uses a combination of staff operational knowledge and hydraulic
modeling of the sewer system to identify potential areas in the system with elevated
inflow and infiltration. This process results in the identification of sewer sub-basins that
are targeted for inflow/infiltration evaluation. This evaluation can include targeted flow
monitoring to further isolate the issue and area of concern, as well as to further
characterize the type of problem. Inflow will result in a near-term and short-lived increase
in flows on the order of hours, while infiltration results in a longer-term increase in flow on
the order of days.
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Flow monitoring can use used to identify the magnitude of inflow versus infiltration, which
is used to determine the approach to further evaluation or corrective action. In some
cases, Utilities will perform smoke testing to determine potential inflow sources, if flow
monitoring identifies inflow as an issue. CCTV inspection is the primary means to
evaluate whether pipeline defects are the cause of potential infiltration if flow monitoring
identifies infiltration as an issue.
Corrective actions for inflow and infiltration include:
• Outreach: Utilities will perform outreach to property owners to correct illegal
connections. Utilities will notify the property owners of the issue and will check to
confirm the illicit connection is disconnected.
• Small Pipeline Repair: Utilities will perform small repairs to correct acute defects
found to be the source of significant infiltration.
• Pipeline Lining or Replacement: In some cases, Utilities will rehabilitate an
entire pipe segment using cured-in-place pipe lining (CIPP), sliplining, or in some
cases will replace the entire pipe segment.
4.2.2 Information Management
Maintenance Work Management
Utilities maintains a log of all cleaning activities by its 40 cleaning zones in its work
management system. The current work management system interfaces with the GIS
attributes and details the size, material and location of each pipe cleaned, as well as the
equipment utilized, and any relevant remarks observed during the cleaning. The City of
Carlsbad utilizes Infor IPS software for preventative maintenance and work orders.
Inspection Data Management
Utilities captures CCTV inspection observations using the National Association of Sewer
Service Companies (NASSCO) Pipeline Assessment and Certification Program (PACP)
inspection coding standard and maintains CCTV inspection data in GraniteNet software
which provides easy access for review. Granite Net has a GIS interface which makes it
easy to see problem sewer pipes on a map. Issues found during CCTV inspection are
evaluated and solutions developed on a case-by-case basis. In the past, Utilities
captured CCTV inspection data using the CUES inspection coding system. Ninety
percent (90%) of small gravity sewers currently have CCTV inspection data coded using
the CUES inspection coding system format.
4.3 Rehabilitation and Replacement Planning
4.3.1 Risk-Based Prioritization
The City developed the Asset Management Master Plan in 2018-19, included as
Attachment D, which includes a risk model for prioritization and decision logic to identify
repair, rehabilitation and replacement recommendations for condition defects in gravity
sewers and manholes. The risk score for gravity sewers includes quantity and severity
of condition defects, cleaning frequency, pipe capacity, spill volume potential, public
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health and environmental impact, and emergency response impact. The risk score for
manholes includes condition assessment scores from City staff inspections, spill volume
potential, public health and environmental impact, and emergency response impact. The
risk model and decision logic are built in Innovyze InfoMaster software which provides a
single GIS based platform for City staff to review CCTV video inspections, manhole
condition assessment scores, risk and decision logic recommendations.
4.3.2 Condition Assessment and Remediation Decision-Making
The City conducts workshops to review CCTV data and make remediation decisions for
large diameter gravity sewers and small diameter gravity sewers with NASSCO PACP
CCTV data format.
4.3.3 Capital Improvement Plan
Asset Management Master Plan
The Asset Management Master Plan recommended a 5-year CIP program for repairs,
rehabilitation and replacement for manholes and gravity sewers based on all CCTV
inspection data available at that time. The CIP recommendations will be updated
annually as new condition assessments are done and evaluated.
Annual Capital Replacement Program Planning
Utilities updates the CIP and project priorities annually through workshops with
engineering and operations staff based on current operating conditions including recent
data such as inspections or flow monitoring. The CIP includes rehabilitation and
replacement projects, as well as repair projects developed by a collaboration of the
Utilities Asset Manager, Operations Supervisor and Utilities Maintenance
Planner/Scheduler. In the future, Utilities intends to use decision support software (i.e.
InfoMaster) to analyze sewer main and manhole data and make recommendations that
are prioritized by risk.
The City’s capital improvement program can be found on the City Budget webpage at:
http://www.carlsbadca.gov/services/depts/finance/budget.asp
Long-Range Capital Financing
The City maintains a 15-year CIP and regularly conducts a cost of service study to
finance the recommended projects. Wastewater replacement revenues are generated by
user fees equal to approximately 30 percent of total revenues, and are used to pay for
replacement of existing sewer facilities. The City of Carlsbad’s Capital Improvement
Program uses replacement funding, which is set aside annually, to fund Capital
Improvement and Replacement Programs.
4.4 Training Program
The City of Carlsbad staff currently participates in the California Water Environment
Association (CWEA) certification program for Collection System Maintenance and for
Mechanical Technologist. The City provides on-going in house technical, job skills and
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safety training for its staff and participates in local and regional training events. The City
of Carlsbad has been and continues to conduct training of Waste Discharge
Requirements (WDR) awareness including an SSO Response Training, internal training
programs for sewer line cleaning, combination truck operations, sewer grit removal and
dumping, station valve repair and pump replacement operations and maintenance, and
other related tasks.
4.5 Equipment and Replacement Part Inventories
The City of Carlsbad maintains a rental pump plan for each sewer lift station and
maintains a portable generator for its sewer lift stations that do not have fixed emergency
generators.
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5 Design and Performance Provisions
The City of Carlsbad requires that all new sewer systems, pump stations and other
appurtenances, as well as the rehabilitation and repair of existing sewer facilities, be
designed and constructed in accordance with the City of Carlsbad’s Engineering
Standards:
• Engineering Standards Volume 1 - General Design Standards
• Engineering Standards Volume 3 – Standard Drawings & Specifications.
Both are available on the internet on the City’s Codes, Standards & Policies webpage at:
http://www.carlsbadca.gov/services/depts/landev/landdev.asp
5.1 Design and Construction Standards and Specifications
5.1.1 Standards for Gravity Sewers
The City’s Engineering Standards Volume 1 – General Design Standards, Chapter 6 –
Design Criteria for Gravity Sewer Lines and Appurtenances includes design criteria
applying to both new, repaired and rehabilitated assets. The following are key design
standards included in Chapter 6 – Design Criteria for Gravity Sewer Lines and
Appurtenances:
• Sewer main depth and size
• Sewer lateral depth and size
• Pipeline material types
• Design parameters for gravity sewer main slope, flow and demand
• Horizontal and vertical layout
• Laterals shall be bedded, backfilled and compacted in the same manner as the
sewer main to which they are connected
• Connection to existing manholes shall be core drilled when stubs have not been
provided. Special care shall be used to facilitate the flow when forming the
tributary channel into the existing channel
• Miscellaneous requirements
o The City will only maintain sewer mains located in dedicated right-of-
ways and easements which have all weather vehicular access
o Maintenance of sewer laterals from the main to the building shall be
the responsibility of the property owner
5.1.2 General Guidelines for Sewer Force Mains
The City’s Engineering Standards Volume 1 – General Design Standards, Chapter 6 –
Design Criteria for Gravity Sewer Lines and Appurtenances contains general guidelines
for sewer force main design. Key guidelines for force mains include:
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• Minimum clearances per the State of California Department of Public Health
“Guidance Memo No. 2003-02: Guidance Criteria for the Separation of Water
Mains and Non-Potable Pipelines”
• Constructed of High Density Polyethylene or Ductile Iron with polyethylene liner
and external corrosion control
• Dual force mains may be required at discretion of City Engineer where frequent
maintenance is required or due to environmental constraints
5.1.3 General Guidelines for Sewer Lift Stations
The City’s Engineering Standards Volume 1 – General Design Standards, Chapter 6 –
Design Criteria for Gravity Sewer Lines and Appurtenances contains general guidelines
for sewer lift station design. The City avoids incorporating sewer lift stations into the
City’s sewer system unless deemed essential by the City Engineer. The design
standards provide guidelines for sewer lift stations smaller than 3 million gallons per day
(MGD). All sewer lift stations larger than 3 MGD are designed in close coordination with
City engineering staff.
5.1.4 Standard Drawings
The City of Carlsbad’s Engineering Standards Volume 3 – Standard Drawings and
Specifications, Chapter 1 – City of Carlsbad Standard Drawing contains standard
drawings for standard sewer improvements, including:
• S-1: Standard Sewer Manhole
• S-1A: PVC Lined Manhole
• S-2: Drop Manhole
• S-3: Shallow Manhole
• S-4: Manhole Frame and Cover
• S-5: Pipe Bedding and Trench Backfill for Sewers
• S-6: Sewer Main Cleanout
• S-7: Sewer Lateral
• S-8: Sewer Lateral (Deep Cut)
• S-9: Manhole Marker Post
5.2 Procedures and Standards for Inspection and Testing
The City of Carlsbad’s Engineering Standards Volume 3 – Standard Drawings and
Specifications, Chapter 6 – Construction Specifications contains specifications for
inspecting and testing the installation of new sewers, pumps and other appurtenances
and for rehabilitation and repair projects. The City has construction inspection staff
assigned to sewer system improvement projects who are responsible for using
inspection and testing specifications to manage and control quality installation of sewer
system improvements. In addition to frequent contact and oversight of construction
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activities, the construction inspector tests gravity and pressurized sewer pipelines
following:
Division 15, Mechanical, 15043 – Testing of Gravity Sewer Pipelines
Gravity sewer pipes are tested for exfiltration and/or infiltration and deflection. Testing
includes a water infiltration test, air pressure test, and a deflection test using a mandel.
The pipe is also inspected using CCTV with all evidence of re reverse slope by ponding
of water or dips in pipe alignment revealed by the closed circuit television inspection shall
be repaired to the satisfaction of the City Engineer at the Contractor’s expense.
Division 15, Mechanical, 15044 – Hydrostatic Testing of Pressure Pipelines
Pressurized sewer pipes are tested for leakage by applying and maintaining a test
pressure by means of a hydraulic pump.
Lift Station Inspection and Testing
Lift stations undergo testing throughout the construction phase starting with factory
testing of equipment and finishing with field testing of the fully constructed lift station prior
to acceptance by the City.
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6 Overflow Emergency Response Plan
The City’s Overflow Emergency Response Plan documents the protocols City staff follow
in the event of a sewer overflow and is included as Attachment F1. Table 6-1 provides a
summary of the WDR requirements for an Overflow Emergency Response Plan and the
relevant section of the City’s Overflow Emergency Response Plan addressing the WDR
requirement.
Table 6-1: Linkage between Overflow Response Requirements and Overflow
Emergency Response Plan
OERP Requirement OERP Section
Prompt Initial Notification
Procedures
Section 3 – Overflow Detection and Initial Response
Appropriate Response to
SSOs
Section 3 – Overflow Detection and Initial Response;
Section 4 – Mitigation;
Section 6 – Recovery and Clean Up;
Section 7 – Water Quality Monitoring and Sampling Procedures;
Section 8 – Investigation and Overflow Estimation
Section 10 - Equipment
Prompt Notification of SSO
Reaching Waters of the
State
Section 5 – Public Access and Warning;
Section 7 – Water Quality Monitoring and Sampling Procedures
Section 9 – Regulatory Notification and Reporting
Procedures for Awareness
and Training for Emergency
Response Plan
Section 12 – Training
Procedures to Address
Emergency Operations
Section 11 - Safety
Program to Ensure
Reasonable Steps Taken to
Contain and Prevent
Discharge
Section 6 – Recovery and Clean Up
SSMP Chapter 4 - Operations and Maintenance Program
6.1 Summary of the Overflow Emergency Response Plan
Sections
The City’s Overflow Emergency Response Plan contains the following sections:
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Section 1 - Purpose
This section states that the Sewer Overflow Response Plan has been developed to
ensure an appropriate standardized response in the event of a sewer overflow. The Plan
also ensures that the City of Carlsbad is adequately prepared to respond to SSO events
by:
• Reducing or eliminating public health hazards,
• Preventing unnecessary property damage,
• Ensuring thorough recovery and cleanup efforts,
• Properly documenting, notifying and reporting overflow spill events,
• Minimizing the inconvenience of service interruptions, and
• Ensuring staff and contracted personnel are properly trained to respond to such
events.
Section 2 - General
The General Section of the Plan describes the Orders and permits from the Regional
Board, Carlsbad’s obligation to comply, the relationship between the City of Carlsbad
and the Encina Wastewater Authority, prohibitions, civil and monetary penalties for
enforcement and the definition of a sewer overflow.
Section 3 - Overflow Detection and Initial Response
Describes the methods in which overflows may be discovered or detected as well as the
responsibilities of City of Carlsbad personnel to respond to overflows, what a preliminary
assessment and response might consist of, and how to respond to overflows in the
collection system, at lift stations and on private property. This section also describes the
SEMS/Incident Command structure.
Section 4 - Mitigation
Mitigation describes the concept of reducing spill severity and the sensitivity of the
coastal waters and the environment to SSOs.
Section 5 - Public Access and Warning
This section describes procedures to protect the public from a public nuisance by posting
signage.
Section 6 - Recovery and Cleanup
The Recovery and Cleanup section of the Plan describes procedures to be followed for
clean-up of spills into concrete lined storm drains, catch basins, under sidewalk drains,
streets, curbs, gutters and other storm water conveyance structures. The section also
describes procedures to be followed for clean-up of spills into waterways, into lawns or
landscaping, into natural vegetation or environmentally sensitive areas, indoors or from
private lateral spills.
The City of Carlsbad (City) has a Sanitary Sewer Overflow (SSO) Remediation Protocol
for SSOs of 1,000-gallons or more spilled to surface waters. For the purposes of the
SSO Remediation Plan, an SSO is defined as any overflow, spill, release, discharge or
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diversion of untreated or partially treated wastewater from a sanitary sewer system.
SSOs can contain suspended solids, pathogenic organisms, nutrients and other
pollutants that may impact surface and ground waters, threaten public health, or
adversely affect aquatic life. The SSO Remediation Protocol integrates the City’s sanitary
sewer infrastructure, Sanitary Sewer Management Plan (SSMP) overflow emergency
response plan(s), adjacent watershed configuration and water quality monitoring
information, sewage spill remediation techniques and other relevant information specific
to SSO response procedures. The SSO Remediation Protocol also includes reference to
existing initial response strategies, an SSO evaluation and adaptive monitoring
remediation approach and identify a suite of potential SSO remediation actions
applicable to potential SSO scenarios.
Section 7 - Water Quality Monitoring and Sampling Procedures
This section describes procedures to be followed for sampling after a SSO has occurred.
Water quality sampling and testing will take place when SSO’s of 50 gallons or more
enter receiving waters. These waters include; Buena Vista Creek/Lagoon, Agua
Hedionda Creek/Lagoon, San Marcos Creek and Batiquitos Lagoon. Tests will the
following; Ammonia, Fecal Coliform, E. Coli, Total Coliform, Dissolved Oxygen, Copper,
Zinc and Biochemical Oxygen Demand or BOD.
Section 8 - Investigation and Overflow Estimation
Ensures that overflow quantification is accurate and lists several means of quantifying
overflow. The section also describes what is contained in an overflow events record and
describes an after action report.
Section 9 - Regulatory Notification and Reporting
Describes the different category of spills and the reporting protocol for the various spill
types.
Section 10 - Equipment
Includes a description of vehicles and equipment to support the daily needs, routine
maintenance and emergency situation for the wastewater division.
Section 11 - Safety
Stresses the criticality of resolving a spill incident safely and competently. Describes
typical safety procedures that personnel may be required to implement during spill
responses including; lockout/tagout of equipment for repairs, confined space entry
procedures, traffic and crowd control procedures at site, equipment and/or vehicle
operation, use of personnel protective equipment. This section also outlines safety
training goals.
Section 12 - Training
The Training section outlines reviewing and amending the Overflow Emergency
Response Plan as well as an annual training schedule.
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Sections 13 & 14 - Contact Information
Lists contact numbers for personnel, outside Districts and Utilities, outside agencies,
lagoon contacts, emergency contractors, general contractors, welding contractors,
electrical contractors, and various suppliers and specialty contracting services.
6.2 Contractor Spill Prevention and Emergency Response
Plans
The City requires all construction contractors performing work on the collection system to
develop, submit and implement a Spill Prevention and Emergency Response Plan as
part of their construction contracts. The contractor Spill Prevention and Emergency
Response Plans include:
• Emergency contact information
• Contact information for notifying impacted parties
• Spill prevention measures and protocols
• Employee training plan and records
• Hazardous substance inventory
• Spill response equipment inventory
• Sewer bypass protocols
• Spill cleanup and disposal protocols
• Spill reporting protocols
City staff review the contractor Spill Prevention and Emergency Response Plan for
approval prior to construction activities. The plan is a formal submittal signed by both the
City’s Engineer and Construction Manager responsible for overseeing construction
activities. Attachment F2 includes an example Spill Prevention and Emergency
Response Plan.
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7 Fats, Oils, and Grease Control Program
The City has implemented a FOG source control program to reduce the amount of Fats,
Oils and Grease discharged to the City’s sewer system. The City identifies all food
preparation and service locations within its service area. Food preparation and service
locations must keep annual records of maintenance of grease control device(s).
Customers with a history of contributing FOG to the sewer system are sent a letter of
correction. The City maintains an active listing of all food preparation and service
locations and permits are not required at this time.
7.1 Public Education Outreach Program
Facilities are provided with a FOG binder consisting of an educational video, posters and
other materials educating them on proper FOG disposal. Utilities Wastewater Division
staff, as well as consultants, have met with each food service facility owner to distribute
the FOG binder. The FOG binder contains:
• A list of independent vendors which can provide collection and disposal services in
the service area
• A link to an information video on proper FOG disposal
• A FOG poster promoting best management practices
The City also held a series of workshops in 2008-09 focused on FOG disposal,
interceptor requirements and implementation of Best Management Practices. The City
plans to update public outreach materials in the next two years including:
• FOG program rebranding to increase outreach effectiveness;
• Use of social media to spread FOG messaging;
• Update of the FOG binder used to educate food service facility owners; and,
• Development and sharing of training videos on FOG best management practices.
7.2 Acceptable Disposal Locations
The City provides food service facilities with a list of independent vendors which can
provide collection and disposal services in the service area.
7.3 FOG Legal Authorities
The City possesses the legal authority to prohibit discharges to the system and identify
measures to prevent SSOs and blockages caused by FOG through the City of Carlsbad,
Municipal Code, Chapter 13 (Sewers), Section 13.06.
Table 7-1: Summary of FOG Source Control and Enforcement Legal Authorities
Requirement Source of Authority
GENERAL
Limit the discharge of fats, oils, and grease and other debris that may cause blockages Muni Code 13.06.010
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FOG SOURCE CONTROL
Installation of grease control device (GCD) Muni Code 13.06.040
Design standards for GCD Muni Code 13.06.090 (Interceptor) Muni Code 13.06.100 (Trap)
Maintenance and BMP requirements Muni Code 13.06.100; 13.06.120; and 13.06.130
Record keeping and reporting Muni Code 13.06.140
Authority to inspect grease producing facilities Muni Code 13.06.150; and 13.06.160
ENFORCEMENT
Enforce any violations of sewer ordinances Muni Code 13.04.080
7.3.1 Authority to Prohibit FOG Discharges
Section 13.06.010 of the Municipal Code prohibits FOG discharge by food service
facilities.
7.3.2 Authority to Inspect Grease Producing Facilities
Section 13.06.150 of the Municipal Code provides authority to inspect and sample a food
service facilities wastewater discharges. The City has the authority to inspect grease
producing facilities through City of Carlsbad, Municipal Code, Chapter 13 (Sewers),
Section 13.06.160 Right of Entry.
7.3.3 Enforcement Authorities
Enforcement of food service facilities for violations of Chapter 13.06 requires an
administrative decision from the Utilities Director through the following steps:
1. Utilities Wastewater Division staff or contractors identify a violation of Chapter 13.06
of the municipal code.
2. Utilities Wastewater Division staff notify the food service facility of the violation and
issue a decision, action or determination for how the food service facility can address
the violation.
3. The food service facility can either choose to address the violation or can file a
written request for appeal hearing with Utilities. The written request must be received
within 10 calendar days of the mailing of Utilities Wastewater Division decision,
action or determination.
4. If Utilities receives an appeal, the Utilities Director will, within 15 days of receipt,
designate a representative to hear the appeal.
5. The appellant meets with the representative to present information supporting their
position concerning the decision, action, or determination.
6. After the hearing, the representative will document their findings in a formal report
with recommendations.
7. The Utilities Director will then issue a written determination, which shall be final.
8. The food service facility can choose to appeal further to the City Council. If the food
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service facility representative fails to appeal or the City Council fails to reverse or
modify the decision, the Utilities Director decision is deemed final.
Once a Utilities Director decision is deemed final, if a food service facility fails to rectify
the issue, the City has the authority to issue an administrative citation following the City’s
Administrative Code Enforcement Remedies in Chapter 1.10 of the municipal code.
7.4 FOG Program Requirements
7.4.1 Best Management Practice, Record-Keeping and Reporting Requirements
The maintenance requirements, BMP requirements, record keeping and reporting
requirements are found in the following sections of the municipal code:
• Section 13.06.130 Grease interceptor maintenance requirements;
• Section 13.06.030 Best management practices required;
• Section 13.06.130 Grease interceptor maintenance requirement, and;
• Section 13.06.140 Monitoring and reporting conditions.
Food service facilities undergo annual Grease Best Management Practices (GBMP)
inspection where the following is evaluated: exhaust hoods, documentation, existing
FOG fixtures, review of best management practices in the food preparation area and
grease control device (GCD) inspection. The inspection is performed by Utilities
Wastewater Division staff or using an inspection contractor.
7.4.2 Grease Control Device Requirements
The City’s requirements to install grease control devices are discussed in the following
sections of the City of Carlsbad, Municipal Code, Chapter 13 (Sewers):
• Section 13.06.040 FOG pretreatment required;
• Section 13.06.090 Grease interceptor requirements, and;
• Section 13.06.100 Grease trap requirements.
The City has a standard drawing for the grease interceptor. Utilities Wastewater Division
staff, or the inspection contractor, performs an annual Grease Control Device Inspection
(GCDI) to ensure that interceptors are routinely serviced to minimize FOG discharges to
the sewer system. The City performs more frequent inspections of those facilities
experiencing inconsistent maintenance practices.
7.5 Preventive Maintenance Program to Address FOG
Accumulation
The City has identified the pipe segments of the sewer system subject to higher levels of
FOG and has assigned these pipe segments to either a quarterly or semi-annual
cleaning schedule. As sewer lines are cleaned, the severity of the FOG accumulation is
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documented in the Infor Public Section (IPS) work management system and the cleaning
program is updated based on the most recent data collected by field staff.
7.6 Source Control Measures for All Sources of FOG
Discharged
The City addresses all known locations of FOG accumulation through either FOG source
control inspections of food service facilities and/or preventive maintenance cleaning on
pipe segments with known propensity for FOG accumulation. The City’s Utilities
Wastewater Division cleans pipe segments with excessive FOG accumulation issues
quarterly.
7.7 FOG Program Staffing
Utilities Wastewater Division staff are responsible for performing food service facility
inspections. In some cases, Utilities Wastewater Division contracts with an inspection
service provider for support with performing the annual food service facility inspections.
All follow-up inspections and enforcement interactions with food service facilities is
performed by City staff.
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8 System Evaluation and Capacity Assurance
Plan
The City has implemented a program to assure system capacity to convey peak dry
weather flows as well as peak wet weather flows generated during a 10-year design
storm event. The City updated the Sewer Master Plan in 2019. The plan includes wet
weather monitoring, evaluation of peak flow including rainfall derived infiltration and
inflow, updated unit sewer flows, projected build-out wastewater flows, and a hydraulic
model of the entire collection system.
8.1 Evaluation to Identify Potential Hydraulic Deficiencies
In 2018, the City updated capacity analyses of the existing and build-out scenarios to
determine if there are any potential capacity deficiencies. The plan aligned flow
monitoring data with the InfoSWMM hydraulic model, incorporated flows from other
regional member agencies and updated flows for seasonal demand changes due to
tourism in the summer.
Flow monitoring was used to evaluate the monitoring of regional flows from member
agencies. System flows identified through flow monitoring in the 2019 Sewer Master Plan
are less than flows identified in the previous master plan and this reduction in flow is
primarily attributed to water conservation. The City is evaluating odor complaints and
cleaning frequencies due to the low flows.
The capacity assessment utilizes a 10-year design storm event that aligns with a
member agency design storm that shares sewer interceptor systems with the City so the
hydraulic analysis is aligned and easier to evaluate between the two systems.
Dynamic Hydraulic Model
The hydraulic model is fully dynamic and is utilized to evaluate surcharge, backflow and
SSO conditions in addition to pipe flows and capacity. Water billing data was used to
update unit sewer flows used in the hydraulic model to reflect current conditions.
The pipe capacity and flow information from the hydraulic model is used in the City’s risk
model which identifies pipes with less capacity and higher flows as higher risk.
Communication and Coordination with Neighboring Agencies
The City jointly owns an outfall interceptor sewer, two lift stations, and associated force
mains with the City of Vista. The outfall interceptor routes sewage approximately 7.5
miles through these two (2) lift stations and associated force mains to the Encina Water
Pollution Control Facility. Both jointly-owned lift stations are operated and maintained by
Encina Wastewater Authority under various MOUs and agreements. The City of
Carlsbad coordinates closely with both the City of Vista and Encina Wastewater Authority
on issues impacting the jointly-owned infrastructure through regular Member Agency
Meetings hosted by Encina Wastewater Authority. As part of ongoing system evaluation
the City meets regularly with Encina Wastewater Authority member agencies to discuss
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ongoing interagency issues (e.g. flow monitoring, I&I, future development projects). This
includes potential future development impacting jointly-owned infrastructure.
8.2 Design Criteria
The City’s sewer system design criteria is located in the 2019 Sewer Master Plan and
Chapter 6 of Volume 1 of the City’s Engineering Standard. Design criteria for Carlsbad
for designing pipe is d/D of less than or equal to 0.75 for pipe greater than 12-inch
diameter, and 050 for pipe less than or equal to 12 inch diameter. Trigger criteria for
upsizing a pipe was developed in the 2019 Sewer Master Plan which is d/D of 0.90 or
greater and q/Q of 1.0 or greater.
8.3 Capacity Enhancement Measures
The 2019 Sewer Master Plan utilizes the results of the evaluation and trigger criteria to
recommend short- and long-term CIP projects for existing and system build out
scenarios. A few minor deficiencies were identified in the existing system scenario which
are identified for short-term projects. There were a few deficiencies identified in the
build-out scenario that are identified for longer-term projects. The 2019 Sewer Master
Plan includes cost estimates, schedule and prioritization for improvement of existing
wastewater collection and treatment facilities. The City conducts smoke testing and
temporary flow monitoring when potential inflow and infiltration issues are identified and
takes steps, such as CIP projects or customer notification, to address issues. The 2019
Sewer Master Plan capacity projects are coordinated with condition related projects
identified in the Asset Management Master Plan. The City regularly conducts a cost of
service study to finance the recommended projects. Water and wastewater replacement
revenues are generated by user fees equal to approximately 30 percent of total
revenues, and are used to pay for replacement of existing water and sewer facilities.
8.4 Schedule for Completion of Capital Program
The 2019 Sewer Master Plan identifies completion dates and trigger criteria for CIP
projects related to hydraulic deficiencies. The City updates the CIP and project priorities
annually through workshops with engineering and operations staff based on current
operating conditions including recent data such as inspections or flow monitoring. The
City maintains a 15-year CIP.
SUPPORTING DOCUMENTS
The following documents, support the City’s System Evaluation and Capacity Assurance
Plan, thereby allowing the City to comply with the System Evaluation and Capacity
Assurance Plan requirements of the WDR:
City of Carlsbad Engineering Standards, Volume 1 – Chapter 6
http://www.carlsbadca.gov/services/depts/landev/landdev.asp
2019 Sewer Master Plan
http://www.carlsbadca.gov/services/depts/landev/landdev.asp
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Capital Improvement Program
http://www.carlsbadca.gov/services/depts/finance/budget.asp
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9 Monitoring, Measurement, and Program
Modifications
The City has developed a leading edge performance management system to monitor
and measure the effectiveness of the SSMP program implementation and to perform
data analytics to diagnose the root causes of issues impacting SSMP program
effectiveness. The City uses this system to monitor the performance of the collection
system on an on-going basis through monthly performance management system reviews
performed at the operating unit level, and annually during Utilities business planning,
goal setting and the annual budget review.
9.1 Collection and Management of Relevant Data
Table 9-1 lists the information systems the City uses to collect, store and analyze SSMP
program data. Key data collected by City staff includes:
• Pipe, manhole and pump station asset attribute data
• Pipe, manhole and pump station asset failure history
• Pipe, manhole and pump station maintenance schedule and work history
• Pipe, manhole and pump station asset inspection data
• Pipe, manhole and pump station asset remediation decisions
The data collected in these information systems provides the source data for the City’s
performance management system.
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Table 9-1: Information Systems Used to Collect, Store and Analyze Relevant
SSMP Program Data
Information
System
System Type Data or Information Stored
ESRI GIS Geographical
information
system
Pipe and manhole geospatial and attribute
data; pump station location
Infor Public
Sector –
Hansen
Maintenance
management
system
Pump station asset attribute data; Pipe,
manhole, pump station maintenance schedule
and work history; manhole inspection data;
remediation history
Cues
GraniteNet
Asset inspection
software
Pipeline inspection data
InfoMaster Asset decision
support software
Pipe and manhole remediation decision; pipe
risk assessment data
Tableau Visual analytics Business intelligence. Used for the
performance management system to see and
understand the data.
9.2 Active Performance Management of SSMP Program Effectiveness
The City actively monitors SSMP program effectiveness using a multi-layer performance
management framework that incorporates the types of performance measurement
described in Table 9-2. This multi-layered performance management system is linked to
the live information systems providing timely data analysis. The City spent several years
building and perfecting this system and it is proving to be an invaluable tool for assessing
SSMP program effectiveness, drilling down into the root causes of sewer overflows and
the process breakdowns that may be impacting the overall performance of the SSMP
program implementation.
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Table 9-2: Multi-Layered Performance Management Framework
Measurement
Type
Measurement Description
Failure analysis The City reviews reported SSOs, prevented SSOs, and lift station equipment failures. These events drive root cause analysis. Failure events are visualized on charts to show monthly or seasonal changes and on maps to show geographical trends.
Productivity analysis The City is tracking the unit cost of routine cleaning, frequency cleaning, and routine filming to provide insight into work efficiency as well as insight into potential work capacity issues that may be arising.
System flows conveyed The City compiles data from EWA reporting to track average flows from the six EWA owners into Water Pollution Control Facility. The City is also tracking the ratio of gravity flows versus pumped flows and the ratio of the flow conveyed to EWA from the City versus the overall flow.
System condition monitoring The City is closely monitoring the type and severity of material found during cleaning activities; manhole condition ratings; and CCTV inspections surpassing condition threshold. This data is charted and mapped to support root cause analysis drill downs. System condition monitoring is also used to change preventive maintenance frequencies for sewer cleaning.
Production monitoring Production of key SSMP program activities are monitored including preventive maintenance cleaning production and average daily footage; preventive maintenance filming production and daily footage; ratio of scheduled versus completed lift station preventive maintenance; the number of scheduled lift station preventive maintenance work orders by priority; and the number of incomplete lift station work orders. These are visualized in various charts for analysis.
Field staff utilization tracking The City tracks the available time of collection system and lift stations operators. This provides insights into why production may be impacted.
Unplanned work volume tracking The City is tracking the volume and types of service requests; the volume of unscheduled lift station work orders; and the costs of unscheduled work activities by lift station.
9.3 Assessment of Preventive Maintenance Program
Success and SSO Trends
The success of the preventive maintenance program is evaluated monthly using both
leading and lagging indicators built into the performance management system. Lagging
indicators include analysis of failures such as SSOs and private lateral sewage
discharges as well as potential failures such as blockages and lift station alarms. Leading
indicators include productivity analysis, production monitoring, system condition
monitoring and unplanned work volume tracking. The City works towards maximizing
planned work and minimizing failures. Each failure or potential failure is monitored to
determine if a trend is forming. Based on the analysis, corrective actions may include
localized preventive maintenance program modifications (i.e., changes to a small number
of pipe segments), such as a change to maintenance method or frequency, or, if a trend
appears to be forming, a programmatic maintenance program change to address
problems impacting a geographical area or specific asset class. The City’s SSO rate has
averaged below 1 SSO per 100 miles of sewer pipelines since October 2015, which is
well below the regional average. This SSO rate is a strong indicator of the success of our
preventive maintenance program.
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9.4 Program Updates Driven by Performance Monitoring
The majority of program updates driven by performance monitoring affect a small
number of assets with a change occurring at the asset level with the modification being a
maintenance method or frequency change. The City is continually optimizing the
maintenance program to perform inspection and maintenance activities at the right
frequencies, using efficient methods and tools, and balancing cost with benefit derived.
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10 SSMP Program Audit and SSMP Updates
The City uses the SSMP audit process to identify actions for improving how it manages,
operates, and maintains the collection system. This process identifies the tasks and
actions that are required to meet SSMP goals and defines and prioritizes them. In
addition, the City formally updates and recertifies the SSMP at a minimum of every five
years. Table 10-1 shows the timeline for SSMP audits and updates for the last five years
and the anticipated schedule for the next five years. The City’s most recent SSMP
Program Audit Report is included as Attachment J.
Table 10-1: SSMP Audit and Update Schedule
Year Audit
2016 Biennial self-audit completed in January 2016
2019 Biennial third-party audit completed in April 2019
2019 5-year SSMP update completed in October 2019
2021 Biennial self-audit planned in early 2021
2023 Biennial self-audit planned in early 2023
2024 5-year SSMP update planned in late 2024
10.1.1 SSMP Program Audit Process
A team of experienced personnel is formed once every two years to perform biennial
self-audits in accordance with regulatory requirements for SSMP Program Audits. The
team consists of representatives from relevant city departments and is led or assigned by
the Primary LRO. In a series of in-person meetings over the course of approximately
three months, the audit team evaluates the effectiveness of each SSMP element,
identifies any deficiencies, and makes recommendations for improvements and updates.
This is done by answering a set of questions developed specifically for the purpose of
the audit for each element of the SSMP. It also includes referencing and reviewing
performance reports and measures monitored throughout the year using the SSMP
program performance management system. These findings are documented in an audit
report. Once the audit is complete, a QC review of the audit report is performed, with a
focus on consistency, completeness, and inclusion of references and attachments as
appropriate. The final audit report is reviewed by the Primary LRO before final
acceptance. Audit reports and related materials are maintained in a hard copy and an
electronic file is stored on the City’s server.
10.1.2 Audit Implementation and Tracking of Results
Once audit report findings and corrective actions are finalized, City staff responsible for
the various elements of the SSMP program implementation review the SSMP program
audit findings to determine an appropriate course of action. City staff will inform the
Primary LRO if plans to address an audit finding deviates from the corrective action
identified in the SSMP program audit report. The implementation progress of SSMP
program audit corrective action are measured and reported on an ongoing basis to
ensure timely completion of corrective actions. Any deficiencies in meeting the schedule
are identified or anticipated and mitigation measures developed and implemented to
ensure the corrective actions from the audit are addressed. Each subsequent audit
update begins with a review of the previous audit to identify any corrective actions that
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have been not been addressed. As described in Element Error! Reference source not f
ound. Error! Reference source not found., any updates necessary to enhance the
SSMP performance are included as a part of the following year’s budgeting process
and/or the formal SSMP program audit.
10.2 SSMP Update Process
The Utilities Manager is responsible for ensuring the SSMP is updated when major
changes occur to the SSMP program implementation or at a minimum of five years from
the previous SSMP update, approval and recertification. The results of the prior SSMP
program audit reports are factored into the SSMP update process.
References for Further Information
• SSMP Program Audit Report, 2019 kept on file at City Public Works Utilities as required
per the General Waste Discharge Requirements
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11 Communication Plan
The City communicates with the public and neighboring agencies on an on-going basis.
The following sections describes the processes the City uses to communicate with the
public and neighboring agencies.
11.1 Communication with the Public
The City communicates with the public on a continual basis through the City website and
City Council meetings, which are open to the public. The updated SSMP is discussed
and approved at a City Council meeting. The last 5-year SSMP update was approved at
a City Council meeting on October 21, 2014, providing the public with the opportunity to
review the SSMP, as part of the City Council meeting attachments, and to comment on
the SSMP at the City Council meeting.
The City website also provides a continual link for the public to download the Sewer
System Management Plan at:
http://www.carlsbadca.gov/services/depts/pw/utils/sewer/default.asp
The webpage also invites the public to send any comments on how the City is operating
and maintaining the sewer system to wastewater@carlsbadca.gov or to call at 760-438-
2722. These modes of communication can occur at any time during development and
implementation of the SSMP.
11.2 Communication with Tributary or Satellite Systems
The City has no public systems tributary and/or satellite to the City of Carlsbad’s sanitary
sewer system. The City has two large private systems discharging into the City’s
collection system:
• Rancho Carlsbad HOA
• Lakeshore Gardens Mobile Home Park
The City jointly owns an outfall interceptor sewer, two lift stations, and associated force
mains with the City of Vista. The outfall interceptor routes sewage approximately 7.5
miles through these two (2) lift stations and associated force mains to the Encina Water
Pollution Control Facility. Both jointly-owned lift stations are operated and maintained by
Encina Wastewater Authority under various MOUs and agreements.
All flows from the City are conveyed to the Encina Water Pollution Control Facility,
owned by Encina Wastewater Authority (EWA), for treatment and disposal. The Utilities
Director participates in monthly Member Agency Meetings hosted by EWA, which is
owned by six public agencies governed by a Joint Powers Agreement. Under this
agreement, owners share in the operational and management costs of EWA. The six
owners are:
• City of Carlsbad,
• City of Vista,
• City of Encinitas,
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• Vallecitos Water District,
• Buena Sanitation District, and
• Leucadia Wastewater District.
The City of Carlsbad Utilities Director attends monthly Member Agency Meetings (MAM)
hosted by EWA to discuss and resolve issues impacting all parties. The MAM is primarily
focused on issues related to the Water Pollution Control Facility, yet can be utilized as a
forum to discuss sewer system issues and WDR compliance if necessary. EWA also
hosts a Collection Managers Meeting, which is attended by the City of Carlsbad
Wastewater staff. This forum provides direct access to the various collection system
managers of nearby agencies when needed.
Through these mechanisms, the City is able to communicate with both the public on an
on-going basis as well as with collection system managers of nearby agencies when
needed to address issues impacting the City’s sewer system.
Sewer System Management Plan
2019 SSMP Update
Attachments
List of Attachments
ID Title Owner Last Updated
A1 State Board’s Order No. 2006-003, Statewide General Waste Discharge Requirements for Sanitary Sewer Systems
Wasko N/A
A2 State Of California Water Resources Control Board, Order No. WQ 2013-0058-EXEC, Amending Monitoring And Reporting Program for Statewide General Waste Discharge Requirements for Sanitary Sewer Systems
Wasko N/A
A3 California Regional Water Quality Control Board, Region 9, Order R9-2007-0005 entitled Waste Discharge Requirements for Sewage Collection Agencies in the San Diego Region
Wasko N/A
B SSO Response, Notification and Reporting Workflow Casteneda July 2019
C Reserved
D Asset Management Master Plan Harrison
E Reserved
F1 Overflow Emergency Response Plan Wasko November 2018
F2 Example Spill Prevention and Emergency Response Plan Casteneda
G Reserved
H Reserved
I Reserved
J SSMP Program Audit Report, April 2019 Wasko April 2019
K Reserved
Sewer System Management Plan 2019 SSMP Update
Attachment A1
State Board’s Order No. 2006-003, Statewide
General Waste Discharge Requirements for
Sanitary Sewer Systems
State Water Resources Control Board Order No. 2006-0003 Page 1 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
STATE WATER RESOURCES CONTROL BOARD
ORDER NO. 2006-0003
STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS
FOR
SANITARY SEWER SYSTEMS
The State Water Resources Control Board, hereinafter referred to as “State Water Board”, finds that: 1. All federal and state agencies, municipalities, counties, districts, and other public
entities that own or operate sanitary sewer systems greater than one mile in
length that collect and/or convey untreated or partially treated wastewater to a publicly owned treatment facility in the State of California are required to comply with the terms of this Order. Such entities are hereinafter referred to as “Enrollees”.
2. Sanitary sewer overflows (SSOs) are overflows from sanitary sewer systems of domestic wastewater, as well as industrial and commercial wastewater, depending on the pattern of land uses in the area served by the sanitary sewer system. SSOs often contain high levels of suspended solids, pathogenic
organisms, toxic pollutants, nutrients, oxygen-demanding organic compounds, oil
and grease and other pollutants. SSOs may cause a public nuisance, particularly when raw untreated wastewater is discharged to areas with high public exposure, such as streets or surface waters used for drinking, fishing, or body contact recreation. SSOs may pollute surface or ground waters, threaten
public health, adversely affect aquatic life, and impair the recreational use and aesthetic enjoyment of surface waters. 3. Sanitary sewer systems experience periodic failures resulting in discharges that may affect waters of the state. There are many factors (including factors related
to geology, design, construction methods and materials, age of the system, population growth, and system operation and maintenance), which affect the likelihood of an SSO. A proactive approach that requires Enrollees to ensure a system-wide operation, maintenance, and management plan is in place will reduce the number and frequency of SSOs within the state. This approach will in
turn decrease the risk to human health and the environment caused by SSOs. 4. Major causes of SSOs include: grease blockages, root blockages, sewer line flood damage, manhole structure failures, vandalism, pump station mechanical failures, power outages, excessive storm or ground water inflow/infiltration,
debris blockages, sanitary sewer system age and construction material failures, lack of proper operation and maintenance, insufficient capacity and contractor-caused damages. Many SSOs are preventable with adequate and appropriate facilities, source control measures and operation and maintenance of the sanitary sewer system.
State Water Resources Control Board Order No. 2006-0003 Page 2 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
SEWER SYSTEM MANAGEMENT PLANS
5. To facilitate proper funding and management of sanitary sewer systems, each
Enrollee must develop and implement a system-specific Sewer System Management Plan (SSMP). To be effective, SSMPs must include provisions to provide proper and efficient management, operation, and maintenance of sanitary sewer systems, while taking into consideration risk management and
cost benefit analysis. Additionally, an SSMP must contain a spill response plan
that establishes standard procedures for immediate response to an SSO in a manner designed to minimize water quality impacts and potential nuisance conditions.
6. Many local public agencies in California have already developed SSMPs and
implemented measures to reduce SSOs. These entities can build upon their existing efforts to establish a comprehensive SSMP consistent with this Order. Others, however, still require technical assistance and, in some cases, funding to improve sanitary sewer system operation and maintenance in order to reduce
SSOs.
7. SSMP certification by technically qualified and experienced persons can provide a useful and cost-effective means for ensuring that SSMPs are developed and implemented appropriately.
8. It is the State Water Board’s intent to gather additional information on the causes and sources of SSOs to augment existing information and to determine the full extent of SSOs and consequent public health and/or environmental impacts occurring in the State.
9. Both uniform SSO reporting and a centralized statewide electronic database are needed to collect information to allow the State Water Board and Regional Water Quality Control Boards (Regional Water Boards) to effectively analyze the extent of SSOs statewide and their potential impacts on beneficial uses and public
health. The monitoring and reporting program required by this Order and the attached Monitoring and Reporting Program No. 2006-0003, are necessary to assure compliance with these waste discharge requirements (WDRs). 10. Information regarding SSOs must be provided to Regional Water Boards and
other regulatory agencies in a timely manner and be made available to the public in a complete, concise, and timely fashion. 11. Some Regional Water Boards have issued WDRs or WDRs that serve as National Pollution Discharge Elimination System (NPDES) permits to sanitary
sewer system owners/operators within their jurisdictions. This Order establishes minimum requirements to prevent SSOs. Although it is the State Water Board’s intent that this Order be the primary regulatory mechanism for sanitary sewer systems statewide, Regional Water Boards may issue more stringent or more
State Water Resources Control Board Order No. 2006-0003 Page 3 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
prescriptive WDRs for sanitary sewer systems. Upon issuance or reissuance of a Regional Water Board’s WDRs for a system subject to this Order, the Regional
Water Board shall coordinate its requirements with stated requirements within
this Order, to identify requirements that are more stringent, to remove requirements that are less stringent than this Order, and to provide consistency in reporting.
REGULATORY CONSIDERATIONS
12. California Water Code section 13263 provides that the State Water Board may prescribe general WDRs for a category of discharges if the State Water Board finds or determines that:
• The discharges are produced by the same or similar operations;
• The discharges involve the same or similar types of waste;
• The discharges require the same or similar treatment standards; and
• The discharges are more appropriately regulated under general discharge requirements than individual discharge requirements.
This Order establishes requirements for a class of operations, facilities, and discharges that are similar throughout the state. 13. The issuance of general WDRs to the Enrollees will:
a) Reduce the administrative burden of issuing individual WDRs to each
Enrollee; b) Provide for a unified statewide approach for the reporting and database tracking of SSOs; c) Establish consistent and uniform requirements for SSMP development
and implementation;
d) Provide statewide consistency in reporting; and e) Facilitate consistent enforcement for violations. 14. The beneficial uses of surface waters that can be impaired by SSOs include, but
are not limited to, aquatic life, drinking water supply, body contact and non-
contact recreation, and aesthetics. The beneficial uses of ground water that can be impaired include, but are not limited to, drinking water and agricultural supply. Surface and ground waters throughout the state support these uses to varying degrees.
15. The implementation of requirements set forth in this Order will ensure the reasonable protection of past, present, and probable future beneficial uses of water and the prevention of nuisance. The requirements implement the water quality control plans (Basin Plans) for each region and take into account the
environmental characteristics of hydrographic units within the state. Additionally, the State Water Board has considered water quality conditions that could reasonably be achieved through the coordinated control of all factors that affect
State Water Resources Control Board Order No. 2006-0003 Page 4 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
water quality in the area, costs associated with compliance with these requirements, the need for developing housing within California, and the need to
develop and use recycled water.
16. The Federal Clean Water Act largely prohibits any discharge of pollutants from a point source to waters of the United States except as authorized under an NPDES permit. In general, any point source discharge of sewage effluent to
waters of the United States must comply with technology-based, secondary
treatment standards, at a minimum, and any more stringent requirements necessary to meet applicable water quality standards and other requirements. Hence, the unpermitted discharge of wastewater from a sanitary sewer system to waters of the United States is illegal under the Clean Water Act. In addition,
many Basin Plans adopted by the Regional Water Boards contain discharge
prohibitions that apply to the discharge of untreated or partially treated wastewater. Finally, the California Water Code generally prohibits the discharge of waste to land prior to the filing of any required report of waste discharge and the subsequent issuance of either WDRs or a waiver of WDRs.
17. California Water Code section 13263 requires a water board to, after any necessary hearing, prescribe requirements as to the nature of any proposed discharge, existing discharge, or material change in an existing discharge. The requirements shall, among other things, take into consideration the need to
prevent nuisance.
18. California Water Code section 13050, subdivision (m), defines nuisance as anything which meets all of the following requirements: a. Is injurious to health, or is indecent or offensive to the senses, or an
obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property. b. Affects at the same time an entire community or neighborhood, or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal.
c. Occurs during, or as a result of, the treatment or disposal of wastes. 19. This Order is consistent with State Water Board Resolution No. 68-16 (Statement of Policy with Respect to Maintaining High Quality of Waters in California) in that the Order imposes conditions to prevent impacts to water quality, does not allow
the degradation of water quality, will not unreasonably affect beneficial uses of water, and will not result in water quality less than prescribed in State Water Board or Regional Water Board plans and policies. 20. The action to adopt this General Order is exempt from the California
Environmental Quality Act (Public Resources Code §21000 et seq.) because it is an action taken by a regulatory agency to assure the protection of the environment and the regulatory process involves procedures for protection of the environment. (Cal. Code Regs., tit. 14, §15308). In addition, the action to adopt
State Water Resources Control Board Order No. 2006-0003 Page 5 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
this Order is exempt from CEQA pursuant to Cal.Code Regs., title 14, §15301 to the extent that it applies to existing sanitary sewer collection systems that
constitute “existing facilities” as that term is used in Section 15301, and §15302,
to the extent that it results in the repair or replacement of existing systems involving negligible or no expansion of capacity. 21. The Fact Sheet, which is incorporated by reference in the Order, contains
supplemental information that was also considered in establishing these
requirements. 22. The State Water Board has notified all affected public agencies and all known interested persons of the intent to prescribe general WDRs that require Enrollees
to develop SSMPs and to report all SSOs.
23. The State Water Board conducted a public hearing on February 8, 2006, to receive oral and written comments on the draft order. The State Water Board received and considered, at its May 2, 2006, meeting, additional public
comments on substantial changes made to the proposed general WDRs
following the February 8, 2006, public hearing. The State Water Board has considered all comments pertaining to the proposed general WDRs.
IT IS HEREBY ORDERED, that pursuant to California Water Code section 13263, the
Enrollees, their agents, successors, and assigns, in order to meet the provisions
contained in Division 7 of the California Water Code and regulations adopted hereunder, shall comply with the following:
A. DEFINITIONS
1. Sanitary sewer overflow (SSO) - Any overflow, spill, release, discharge or diversion of untreated or partially treated wastewater from a sanitary sewer system. SSOs include: (i) Overflows or releases of untreated or partially treated wastewater that
reach waters of the United States; (ii) Overflows or releases of untreated or partially treated wastewater that do not reach waters of the United States; and (iii) Wastewater backups into buildings and on private property that are caused by blockages or flow conditions within the publicly owned portion
of a sanitary sewer system. 2. Sanitary sewer system – Any system of pipes, pump stations, sewer lines, or other conveyances, upstream of a wastewater treatment plant headworks used to collect and convey wastewater to the publicly owned treatment facility.
Temporary storage and conveyance facilities (such as vaults, temporary piping, construction trenches, wet wells, impoundments, tanks, etc.) are considered to be part of the sanitary sewer system, and discharges into these temporary storage facilities are not considered to be SSOs.
State Water Resources Control Board Order No. 2006-0003 Page 6 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
For purposes of this Order, sanitary sewer systems include only those systems
owned by public agencies that are comprised of more than one mile of pipes or
sewer lines. 3. Enrollee - A federal or state agency, municipality, county, district, and other public entity that owns or operates a sanitary sewer system, as defined in the
general WDRs, and that has submitted a complete and approved application for
coverage under this Order. 4. SSO Reporting System – Online spill reporting system that is hosted, controlled, and maintained by the State Water Board. The web address for this
site is http://ciwqs.waterboards.ca.gov. This online database is maintained on a
secure site and is controlled by unique usernames and passwords. 5. Untreated or partially treated wastewater – Any volume of waste discharged from the sanitary sewer system upstream of a wastewater treatment plant
headworks.
6. Satellite collection system – The portion, if any, of a sanitary sewer system owned or operated by a different public agency than the agency that owns and operates the wastewater treatment facility to which the sanitary sewer system is
tributary.
7. Nuisance - California Water Code section 13050, subdivision (m), defines nuisance as anything which meets all of the following requirements: a. Is injurious to health, or is indecent or offensive to the senses, or an
obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property. b. Affects at the same time an entire community or neighborhood, or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal.
c. Occurs during, or as a result of, the treatment or disposal of wastes.
B. APPLICATION REQUIREMENTS 1. Deadlines for Application – All public agencies that currently own or operate
sanitary sewer systems within the State of California must apply for coverage under the general WDRs within six (6) months of the date of adoption of the general WDRs. Additionally, public agencies that acquire or assume responsibility for operating sanitary sewer systems after the date of adoption of this Order must apply for coverage under the general WDRs at least three (3)
months prior to operation of those facilities. 2. Applications under the general WDRs – In order to apply for coverage pursuant to the general WDRs, a legally authorized representative for each agency must submit a complete application package. Within sixty (60) days of adoption of the
general WDRs, State Water Board staff will send specific instructions on how to
State Water Resources Control Board Order No. 2006-0003 Page 7 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
apply for coverage under the general WDRs to all known public agencies that own sanitary sewer systems. Agencies that do not receive notice may obtain
applications and instructions online on the Water Board’s website.
3. Coverage under the general WDRs – Permit coverage will be in effect once a complete application package has been submitted and approved by the State Water Board’s Division of Water Quality.
C. PROHIBITIONS 1. Any SSO that results in a discharge of untreated or partially treated wastewater to waters of the United States is prohibited.
2. Any SSO that results in a discharge of untreated or partially treated wastewater that creates a nuisance as defined in California Water Code Section 13050(m) is prohibited.
D. PROVISIONS
1. The Enrollee must comply with all conditions of this Order. Any noncompliance with this Order constitutes a violation of the California Water Code and is grounds for enforcement action.
2. It is the intent of the State Water Board that sanitary sewer systems be regulated in a manner consistent with the general WDRs. Nothing in the general WDRs shall be:
(i) Interpreted or applied in a manner inconsistent with the Federal Clean Water Act, or supersede a more specific or more stringent state or federal requirement in an existing permit, regulation, or administrative/judicial order or Consent Decree; (ii) Interpreted or applied to authorize an SSO that is illegal under either the
Clean Water Act, an applicable Basin Plan prohibition or water quality standard, or the California Water Code; (iii) Interpreted or applied to prohibit a Regional Water Board from issuing an individual NPDES permit or WDR, superseding this general WDR, for a sanitary sewer system, authorized under the Clean Water Act or
California Water Code; or (iv) Interpreted or applied to supersede any more specific or more stringent WDRs or enforcement order issued by a Regional Water Board. 3. The Enrollee shall take all feasible steps to eliminate SSOs. In the event that an
SSO does occur, the Enrollee shall take all feasible steps to contain and mitigate the impacts of an SSO. 4. In the event of an SSO, the Enrollee shall take all feasible steps to prevent untreated or partially treated wastewater from discharging from storm drains into
State Water Resources Control Board Order No. 2006-0003 Page 8 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
flood control channels or waters of the United States by blocking the storm drainage system and by removing the wastewater from the storm drains.
5. All SSOs must be reported in accordance with Section G of the general WDRs. 6. In any enforcement action, the State and/or Regional Water Boards will consider the appropriate factors under the duly adopted State Water Board Enforcement
Policy. And, consistent with the Enforcement Policy, the State and/or Regional
Water Boards must consider the Enrollee’s efforts to contain, control, and mitigate SSOs when considering the California Water Code Section 13327 factors. In assessing these factors, the State and/or Regional Water Boards will also consider whether:
(i) The Enrollee has complied with the requirements of this Order, including requirements for reporting and developing and implementing a SSMP; (ii) The Enrollee can identify the cause or likely cause of the discharge event;
(iii) There were no feasible alternatives to the discharge, such as temporary storage or retention of untreated wastewater, reduction of inflow and infiltration, use of adequate backup equipment, collecting and hauling of untreated wastewater to a treatment facility, or an increase in the
capacity of the system as necessary to contain the design storm event
identified in the SSMP. It is inappropriate to consider the lack of feasible alternatives, if the Enrollee does not implement a periodic or continuing process to identify and correct problems.
(iv) The discharge was exceptional, unintentional, temporary, and caused by factors beyond the reasonable control of the Enrollee; (v) The discharge could have been prevented by the exercise of reasonable control described in a certified SSMP for:
• Proper management, operation and maintenance;
• Adequate treatment facilities, sanitary sewer system facilities, and/or components with an appropriate design capacity, to
reasonably prevent SSOs (e.g., adequately enlarging treatment or collection facilities to accommodate growth, infiltration and inflow (I/I), etc.);
• Preventive maintenance (including cleaning and fats, oils, and
grease (FOG) control);
• Installation of adequate backup equipment; and
• Inflow and infiltration prevention and control to the extent
practicable.
(vi) The sanitary sewer system design capacity is appropriate to reasonably prevent SSOs.
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(vii) The Enrollee took all reasonable steps to stop and mitigate the impact of the discharge as soon as possible.
7. When a sanitary sewer overflow occurs, the Enrollee shall take all feasible steps and necessary remedial actions to 1) control or limit the volume of untreated or partially treated wastewater discharged, 2) terminate the discharge, and 3) recover as much of the wastewater discharged as possible for proper disposal,
including any wash down water.
The Enrollee shall implement all remedial actions to the extent they may be applicable to the discharge and not inconsistent with an emergency response plan, including the following:
(i) Interception and rerouting of untreated or partially treated wastewater flows around the wastewater line failure; (ii) Vacuum truck recovery of sanitary sewer overflows and wash down water;
(iii) Cleanup of debris at the overflow site;
(iv) System modifications to prevent another SSO at the same location; (v) Adequate sampling to determine the nature and impact of the release; and (vi) Adequate public notification to protect the public from exposure to the
SSO.
8. The Enrollee shall properly, manage, operate, and maintain all parts of the sanitary sewer system owned or operated by the Enrollee, and shall ensure that the system operators (including employees, contractors, or other agents) are
adequately trained and possess adequate knowledge, skills, and abilities. 9. The Enrollee shall allocate adequate resources for the operation, maintenance, and repair of its sanitary sewer system, by establishing a proper rate structure, accounting mechanisms, and auditing procedures to ensure an adequate
measure of revenues and expenditures. These procedures must be in compliance with applicable laws and regulations and comply with generally acceptable accounting practices. 10. The Enrollee shall provide adequate capacity to convey base flows and peak
flows, including flows related to wet weather events. Capacity shall meet or exceed the design criteria as defined in the Enrollee’s System Evaluation and Capacity Assurance Plan for all parts of the sanitary sewer system owned or operated by the Enrollee.
11. The Enrollee shall develop and implement a written Sewer System Management Plan (SSMP) and make it available to the State and/or Regional Water Board upon request. A copy of this document must be publicly available at the Enrollee’s office and/or available on the Internet. This SSMP must be approved by the Enrollee’s governing board at a public meeting.
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12. In accordance with the California Business and Professions Code sections 6735, 7835, and 7835.1, all engineering and geologic evaluations and judgments shall
be performed by or under the direction of registered professionals competent and
proficient in the fields pertinent to the required activities. Specific elements of the SSMP that require professional evaluation and judgments shall be prepared by or under the direction of appropriately qualified professionals, and shall bear the professional(s)’ signature and stamp.
13. The mandatory elements of the SSMP are specified below. However, if the Enrollee believes that any element of this section is not appropriate or applicable to the Enrollee’s sanitary sewer system, the SSMP program does not need to address that element. The Enrollee must justify why that element is not
applicable. The SSMP must be approved by the deadlines listed in the SSMP
Time Schedule below.
Sewer System Management Plan (SSMP)
(i) Goal: The goal of the SSMP is to provide a plan and schedule to properly
manage, operate, and maintain all parts of the sanitary sewer system. This will help reduce and prevent SSOs, as well as mitigate any SSOs that do occur.
(ii) Organization: The SSMP must identify:
(a) The name of the responsible or authorized representative as described in Section J of this Order.
(b) The names and telephone numbers for management, administrative, and maintenance positions responsible for implementing specific measures in the SSMP program. The SSMP must identify lines of authority through an organization chart or similar document with a narrative explanation; and
(c) The chain of communication for reporting SSOs, from receipt of a complaint or other information, including the person responsible for reporting SSOs to the State and Regional Water Board and other agencies if applicable (such as County Health Officer, County
Environmental Health Agency, Regional Water Board, and/or State Office of Emergency Services (OES)). (iii) Legal Authority: Each Enrollee must demonstrate, through sanitary sewer system use ordinances, service agreements, or other legally
binding procedures, that it possesses the necessary legal authority to: (a) Prevent illicit discharges into its sanitary sewer system (examples may include I/I, stormwater, chemical dumping, unauthorized debris and cut roots, etc.);
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(b) Require that sewers and connections be properly designed and constructed;
(c) Ensure access for maintenance, inspection, or repairs for portions of the lateral owned or maintained by the Public Agency;
(d) Limit the discharge of fats, oils, and grease and other debris
that may cause blockages, and (e) Enforce any violation of its sewer ordinances.
(iv) Operation and Maintenance Program. The SSMP must include those
elements listed below that are appropriate and applicable to the Enrollee’s system: (a) Maintain an up-to-date map of the sanitary sewer system,
showing all gravity line segments and manholes, pumping
facilities, pressure pipes and valves, and applicable stormwater conveyance facilities; (b) Describe routine preventive operation and maintenance activities
by staff and contractors, including a system for scheduling regular
maintenance and cleaning of the sanitary sewer system with more frequent cleaning and maintenance targeted at known problem areas. The Preventative Maintenance (PM) program should have a system to document scheduled and conducted activities, such
as work orders; (c) Develop a rehabilitation and replacement plan to identify and prioritize system deficiencies and implement short-term and long-term rehabilitation actions to address each deficiency. The
program should include regular visual and TV inspections of manholes and sewer pipes, and a system for ranking the condition of sewer pipes and scheduling rehabilitation. Rehabilitation and replacement should focus on sewer pipes that are at risk of collapse or prone to more frequent blockages due to
pipe defects. Finally, the rehabilitation and replacement plan should include a capital improvement plan that addresses proper management and protection of the infrastructure assets. The plan shall include a time schedule for implementing the short- and long-term plans plus a schedule for developing the funds needed
for the capital improvement plan; (d) Provide training on a regular basis for staff in sanitary sewer system operations and maintenance, and require contractors to be appropriately trained; and
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(e) Provide equipment and replacement part inventories, including identification of critical replacement parts.
(v) Design and Performance Provisions: (a) Design and construction standards and specifications for the installation of new sanitary sewer systems, pump stations and other
appurtenances; and for the rehabilitation and repair of existing
sanitary sewer systems; and (b) Procedures and standards for inspecting and testing the installation of new sewers, pumps, and other appurtenances and for
rehabilitation and repair projects.
(vi) Overflow Emergency Response Plan - Each Enrollee shall develop and implement an overflow emergency response plan that identifies measures to protect public health and the environment. At a minimum,
this plan must include the following:
(a) Proper notification procedures so that the primary responders and regulatory agencies are informed of all SSOs in a timely manner;
(b) A program to ensure an appropriate response to all overflows;
(c) Procedures to ensure prompt notification to appropriate regulatory agencies and other potentially affected entities (e.g. health agencies, Regional Water Boards, water suppliers, etc.) of all SSOs
that potentially affect public health or reach the waters of the State in accordance with the MRP. All SSOs shall be reported in accordance with this MRP, the California Water Code, other State Law, and other applicable Regional Water Board WDRs or NPDES permit requirements. The SSMP should identify the officials who
will receive immediate notification; (d) Procedures to ensure that appropriate staff and contractor personnel are aware of and follow the Emergency Response Plan and are appropriately trained;
(e) Procedures to address emergency operations, such as traffic and crowd control and other necessary response activities; and (f) A program to ensure that all reasonable steps are taken to contain
and prevent the discharge of untreated and partially treated wastewater to waters of the United States and to minimize or correct any adverse impact on the environment resulting from the SSOs, including such accelerated or additional monitoring as may be necessary to determine the nature and impact of the discharge.
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(vii) FOG Control Program: Each Enrollee shall evaluate its service area to determine whether a FOG control program is needed. If an Enrollee
determines that a FOG program is not needed, the Enrollee must provide
justification for why it is not needed. If FOG is found to be a problem, the Enrollee must prepare and implement a FOG source control program to reduce the amount of these substances discharged to the sanitary sewer system. This plan shall include the following as appropriate:
(a) An implementation plan and schedule for a public education outreach program that promotes proper disposal of FOG; (b) A plan and schedule for the disposal of FOG generated within the
sanitary sewer system service area. This may include a list of
acceptable disposal facilities and/or additional facilities needed to adequately dispose of FOG generated within a sanitary sewer system service area;
(c) The legal authority to prohibit discharges to the system and
identify measures to prevent SSOs and blockages caused by FOG; (d) Requirements to install grease removal devices (such as traps or
interceptors), design standards for the removal devices,
maintenance requirements, BMP requirements, record keeping and reporting requirements; (e) Authority to inspect grease producing facilities, enforcement
authorities, and whether the Enrollee has sufficient staff to inspect and enforce the FOG ordinance; (f) An identification of sanitary sewer system sections subject to FOG blockages and establishment of a cleaning maintenance
schedule for each section; and (g) Development and implementation of source control measures for all sources of FOG discharged to the sanitary sewer system for each section identified in (f) above.
(viii) System Evaluation and Capacity Assurance Plan: The Enrollee shall prepare and implement a capital improvement plan (CIP) that will provide hydraulic capacity of key sanitary sewer system elements for dry weather peak flow conditions, as well as the appropriate design
storm or wet weather event. At a minimum, the plan must include: (a) Evaluation: Actions needed to evaluate those portions of the sanitary sewer system that are experiencing or contributing to an SSO discharge caused by hydraulic deficiency. The evaluation
must provide estimates of peak flows (including flows from SSOs
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that escape from the system) associated with conditions similar to those causing overflow events, estimates of the capacity of key
system components, hydraulic deficiencies (including components
of the system with limiting capacity) and the major sources that contribute to the peak flows associated with overflow events; (b) Design Criteria: Where design criteria do not exist or are
deficient, undertake the evaluation identified in (a) above to
establish appropriate design criteria; and (c) Capacity Enhancement Measures: The steps needed to establish a short- and long-term CIP to address identified
hydraulic deficiencies, including prioritization, alternatives
analysis, and schedules. The CIP may include increases in pipe size, I/I reduction programs, increases and redundancy in pumping capacity, and storage facilities. The CIP shall include an implementation schedule and shall identify sources of funding.
(d) Schedule: The Enrollee shall develop a schedule of completion dates for all portions of the capital improvement program developed in (a)-(c) above. This schedule shall be reviewed and updated consistent with the SSMP review and update
requirements as described in Section D. 14.
(ix) Monitoring, Measurement, and Program Modifications: The Enrollee shall:
(a) Maintain relevant information that can be used to establish and prioritize appropriate SSMP activities; (b) Monitor the implementation and, where appropriate, measure the effectiveness of each element of the
SSMP; (c) Assess the success of the preventative maintenance program;
(d) Update program elements, as appropriate, based on monitoring or performance evaluations; and (e) Identify and illustrate SSO trends, including: frequency, location, and volume.
(x) SSMP Program Audits - As part of the SSMP, the Enrollee shall conduct periodic internal audits, appropriate to the size of the system and the number of SSOs. At a minimum, these audits must occur every two years and a report must be prepared and kept on file. This audit
shall focus on evaluating the effectiveness of the SSMP and the
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Enrollee’s compliance with the SSMP requirements identified in this subsection (D.13), including identification of any deficiencies in the
SSMP and steps to correct them.
(xi) Communication Program – The Enrollee shall communicate on a regular basis with the public on the development, implementation, and performance of its SSMP. The communication system shall provide the
public the opportunity to provide input to the Enrollee as the program is
developed and implemented. The Enrollee shall also create a plan of communication with systems that are tributary and/or satellite to the Enrollee’s sanitary sewer system.
14. Both the SSMP and the Enrollee’s program to implement the SSMP must be certified by the Enrollee to be in compliance with the requirements set forth above and must be presented to the Enrollee’s governing board for approval at a public meeting. The Enrollee shall certify that the SSMP, and subparts thereof,
are in compliance with the general WDRs within the time frames identified in the
time schedule provided in subsection D.15, below. In order to complete this certification, the Enrollee’s authorized representative must complete the certification portion in the Online SSO Database
Questionnaire by checking the appropriate milestone box, printing and signing
the automated form, and sending the form to: State Water Resources Control Board Division of Water Quality
Attn: SSO Program Manager P.O. Box 100 Sacramento, CA 95812 The SSMP must be updated every five (5) years, and must include any
significant program changes. Re-certification by the governing board of the Enrollee is required in accordance with D.14 when significant updates to the SSMP are made. To complete the re-certification process, the Enrollee shall enter the data in the Online SSO Database and mail the form to the State Water Board, as described above.
15. The Enrollee shall comply with these requirements according to the following schedule. This time schedule does not supersede existing requirements or time schedules associated with other permits or regulatory requirements.
State Water Resources Control Board Order No. 2006-0003 Page 16 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
Sewer System Management Plan Time Schedule
Task and Associated Section Completion Date
Population > 100,000 Population between 100,000 and 10,000
Population between 10,000 and 2,500
Population < 2,500
Application for Permit Coverage
Section C
6 months after WDRs Adoption
Reporting Program
Section G 6 months after WDRs Adoption1
SSMP Development Plan and Schedule
No specific Section
9 months after WDRs Adoption2 12 months after WDRs Adoption2
15 months after WDRs Adoption2
18 months after WDRs Adoption2
Goals and Organization Structure
Section D 13 (i) & (ii)
12 months after WDRs Adoption2 18 months after WDRs Adoption2
Overflow Emergency Response Program
Section D 13 (vi) Legal Authority
Section D 13 (iii) Operation and Maintenance Program
Section D 13 (iv)
Grease Control Program
Section D 13 (vii)
24 months after
WDRs Adoption2 30 months after
WDRs Adoption2
36 months after WDRs
Adoption2
39 months after WDRs
Adoption2
Design and Performance
Section D 13 (v)
System Evaluation and Capacity Assurance
Plan
Section D 13 (viii)
Final SSMP,
incorporating all of the SSMP requirements
Section D 13
36 months after WDRs Adoption 39 months after WDRs Adoption 48 months after WDRs Adoption 51 months after WDRs Adoption
State Water Resources Control Board Order No. 2006-0003 Page 17 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
1. In the event that by July 1, 2006 the Executive Director is able to execute a memorandum of agreement (MOA) with the California Water Environment
Association (CWEA) or discharger representatives outlining a strategy and time
schedule for CWEA or another entity to provide statewide training on the adopted monitoring program, SSO database electronic reporting, and SSMP development, consistent with this Order, then the schedule of Reporting Program Section G shall be replaced with the following schedule:
Reporting Program
Section G
Regional Boards 4, 8, and 9 8 months after WDRs Adoption
Regional Boards 1, 2, and 3 12 months after WDRs Adoption
Regional Boards 5, 6, and 7 16 months after WDRs Adoption
If this MOU is not executed by July 1, 2006, the reporting program time schedule will remain six (6) months for all regions and agency size categories.
2. In the event that the Executive Director executes the MOA identified in note 1 by July 1, 2006, then the deadline for this task shall be extended by six (6) months. The time schedule identified in the MOA must be consistent with the extended time schedule provided by this note. If the MOA is not executed by July 1, 2006, the six (6) month time extension will not be granted.
E. WDRs and SSMP AVAILABILITY 1. A copy of the general WDRs and the certified SSMP shall be maintained at appropriate locations (such as the Enrollee’s offices, facilities, and/or Internet
homepage) and shall be available to sanitary sewer system operating and maintenance personnel at all times.
F. ENTRY AND INSPECTION
1. The Enrollee shall allow the State or Regional Water Boards or their authorized representative, upon presentation of credentials and other documents as may be required by law, to: a. Enter upon the Enrollee’s premises where a regulated facility or activity
is located or conducted, or where records are kept under the conditions of this Order; b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this Order;
State Water Resources Control Board Order No. 2006-0003 Page 18 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated
or required under this Order; and
d. Sample or monitor at reasonable times, for the purposes of assuring compliance with this Order or as otherwise authorized by the California Water Code, any substances or parameters at any location.
G. GENERAL MONITORING AND REPORTING REQUIREMENTS 1. The Enrollee shall furnish to the State or Regional Water Board, within a reasonable time, any information that the State or Regional Water Board may
request to determine whether cause exists for modifying, revoking and reissuing,
or terminating this Order. The Enrollee shall also furnish to the Executive Director of the State Water Board or Executive Officer of the applicable Regional Water Board, upon request, copies of records required to be kept by this Order.
2. The Enrollee shall comply with the attached Monitoring and Reporting Program
No. 2006-0003 and future revisions thereto, as specified by the Executive Director. Monitoring results shall be reported at the intervals specified in Monitoring and Reporting Program No. 2006-0003. Unless superseded by a specific enforcement Order for a specific Enrollee, these reporting requirements
are intended to replace other mandatory routine written reports associated with
SSOs. 3. All Enrollees must obtain SSO Database accounts and receive a “Username” and “Password” by registering through the California Integrated Water Quality
System (CIWQS). These accounts will allow controlled and secure entry into the SSO Database. Additionally, within 30days of receiving an account and prior to recording spills into the SSO Database, all Enrollees must complete the “Collection System Questionnaire”, which collects pertinent information regarding a Enrollee’s collection system. The “Collection System Questionnaire” must be
updated at least every 12 months. 4. Pursuant to Health and Safety Code section 5411.5, any person who, without regard to intent or negligence, causes or permits any untreated wastewater or other waste to be discharged in or on any waters of the State, or discharged in or
deposited where it is, or probably will be, discharged in or on any surface waters of the State, as soon as that person has knowledge of the discharge, shall immediately notify the local health officer of the discharge. Discharges of untreated or partially treated wastewater to storm drains and drainage channels, whether man-made or natural or concrete-lined, shall be reported as required
above. Any SSO greater than 1,000 gallons discharged in or on any waters of the State, or discharged in or deposited where it is, or probably will be, discharged in or on any surface waters of the State shall also be reported to the Office of Emergency
Services pursuant to California Water Code section 13271.
State Water Resources Control Board Order No. 2006-0003 Page 19 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
H. CHANGE IN OWNERSHIP
1. This Order is not transferable to any person or party, except after notice to the Executive Director. The Enrollee shall submit this notice in writing at least 30 days in advance of any proposed transfer. The notice must include a written agreement between the existing and new Enrollee containing a specific date for
the transfer of this Order's responsibility and coverage between the existing
Enrollee and the new Enrollee. This agreement shall include an acknowledgement that the existing Enrollee is liable for violations up to the transfer date and that the new Enrollee is liable from the transfer date forward.
I. INCOMPLETE REPORTS
1. If an Enrollee becomes aware that it failed to submit any relevant facts in any report required under this Order, the Enrollee shall promptly submit such facts or information by formally amending the report in the Online SSO Database.
J. REPORT DECLARATION 1. All applications, reports, or information shall be signed and certified as follows:
(i) All reports required by this Order and other information required by the
State or Regional Water Board shall be signed and certified by a person designated, for a municipality, state, federal or other public agency, as either a principal executive officer or ranking elected official, or by a duly authorized representative of that person, as described in paragraph (ii) of
this provision. (For purposes of electronic reporting, an electronic signature and accompanying certification, which is in compliance with the Online SSO database procedures, meet this certification requirement.) (ii) An individual is a duly authorized representative only if:
(a) The authorization is made in writing by a person described in paragraph (i) of this provision; and (b) The authorization specifies either an individual or a position having
responsibility for the overall operation of the regulated facility or activity.
K. CIVIL MONETARY REMEDIES FOR DISCHARGE VIOLATIONS
1. The California Water Code provides various enforcement options, including civil monetary remedies, for violations of this Order. 2. The California Water Code also provides that any person failing or refusing to furnish technical or monitoring program reports, as required under this Order, or
State Water Resources Control Board Order No. 2006-0003 Page 20 of 20 Statewide General WDR For Wastewater Collection Agencies 5/2/06
falsifying any information provided in the technical or monitoring reports is subject to civil monetary penalties.
L. SEVERABILITY 1. The provisions of this Order are severable, and if any provision of this Order, or the application of any provision of this Order to any circumstance, is held invalid,
the application of such provision to other circumstances, and the remainder of
this Order, shall not be affected thereby. 2. This order does not convey any property rights of any sort or any exclusive privileges. The requirements prescribed herein do not authorize the commission
of any act causing injury to persons or property, nor protect the Enrollee from
liability under federal, state or local laws, nor create a vested right for the Enrollee to continue the waste discharge.
CERTIFICATION
The undersigned Clerk to the State Water Board does hereby certify that the foregoing is a full, true, and correct copy of general WDRs duly and regularly adopted at a meeting of the State Water Resources Control Board held on May 2, 2006.
AYE: Tam M. Doduc Gerald D. Secundy
NO: Arthur G. Baggett ABSENT: None
ABSTAIN: None __________________________ Song Her Clerk to the Board
Sewer System Management Plan
2019 SSMP Update
Attachment A2
State Of California Water Resources Control
Board, Order No. WQ 2013-0058-EXEC,
Amending Monitoring And Reporting Program
for Statewide General Waste Discharge
Requirements for Sanitary Sewer Systems
STATE OF CALIFORNIA
WATER RESOURCES CONTROL BOARD
ORDER NO. WQ 2013-0058-EXEC
AMENDING MONITORING AND REPORTING PROGRAM
FOR
STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS FOR
SANITARY SEWER SYSTEMS
The State of California, Water Resources Control Board (hereafter State Water Board) finds:
1. The State Water Board is authorized to prescribe statewide general Waste Discharge
Requirements (WDRs) for categories of discharges that involve the same or similar operations
and the same or similar types of waste pursuant to Water Code section 13263(i).
2. Water Code section 13193 et seq. requires the Regional Water Quality Control Boards (Regional
Water Boards) and the State Water Board (collectively, the Water Boards) to gather Sanitary
Sewer Overflow (SSO) information and make this information available to the public, including but
not limited to, SSO cause, estimated volume, location, date, time, duration, whether or not the
SSO reached or may have reached waters of the state, response and corrective action taken, and
an enrollee's contact information for each SSO event. An enrollee is defined as the public entity
having leg a! authority over the operation and maintenance of, or capital improvements to, a
sanitary sewer system greater than one mile in length.
3. Water Code section 13271, et seq. requires notification to the California Office of Emergency
Services (Cal OES), formerly the California Emergency Management Agency, for certain
unauthorized discharges, including SSOs.
4. On May 2, 2006, the State Water Board adopted Order 2006-0003-DWQ, "Statewide Waste
Discharge Requirements for Sanitary Sewer Systems"1 (hereafter SSS WDRs) to comply with
Water Code section 13193 and to establish the framework for the statewide SSO Reduction
Program.
5. Subsection G.2 of the SSS WDRs and the Monitoring and Reporting Program (MRP) provide that
the Executive Director may modify the terms of the MRP at any time.
6. On February 20, 2008, the State Water Board Executive Director adopted a revised MRP for the
SSS WDRs to rectify early notification deficiencies and ensure that first responders are notified in
a timely manner of SSOs discharged into waters of the state.
7. When notified of an SSO that reaches a drainage channel or surface water of the state, Cal OES,
pursuant to Water Code section 13271 (a)(3), forwards the SSO notification information2 to local
government agencies and first responders including local public health officials and the applicable
Regional Water Board. Receipt of notifications for a single SSO event from both the SSO reporter
1 Available for download at:
http://www.waterboards.ca.gov/board decisions/adopted orders/water guality/2006/wgo/wgo2006 0003.pdf
2 Cal OES Hazardous Materials Spill Reports available Online at:
http://w3.calema.ca.gov/operational/malhaz.nsf/$defaultview and http://w3.calema.ca.gov/operational/malhaz.nsf
ATTACHMENT A
STATE WATER RESOURCES CONTROL BOARD
ORDER NO. WQ 2013-0058-EXEC AMENDING MONITORING AND REPORTING PROGRAM FOR
STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS FOR SANITARY SEWER SYSTEMS
This Monitoring and Reporting Program (MRP) establishes monitoring, record keeping, reporting and public notification requirements for Order 2006-0003-DWQ, “Statewide General Waste Discharge
Requirements for Sanitary Sewer Systems” (SSS WDRs). This MRP shall be effective from September 9, 2013 until it is rescinded. The Executive Director may make revisions to this MRP at any time. These revisions may include a reduction or increase in the monitoring and reporting requirements. All site
specific records and data developed pursuant to the SSS WDRs and this MRP shall be complete, accurate, and justified by evidence maintained by the enrollee. Failure to comply with this MRP may subject an enrollee to civil liabilities of up to $5,000 a day per violation pursuant to Water Code section 13350; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney General for judicial civil enforcement. The State Water Resources Control Board (State Water Board) reserves the right to take any further enforcement action authorized by law.
A. SUMMARY OF MRP REQUIREMENTS
Table 1 – Spill Categories and Definitions
CATEGORIES DEFINITIONS [see Section A on page 5 of Order 2006-0003-DWQ, for Sanitary Sewer Overflow (SSO) definition]
CATEGORY 1
Discharges of untreated or partially treated wastewater of any volume resulting from an enrollee’s sanitary sewer system failure or flow condition that: Reach surface water and/or reach a drainage channel tributary to a surface water; or Reach a Municipal Separate Storm Sewer System (MS4) and are not fully captured and returned to the sanitary sewer system or not otherwise captured and disposed of properly. Any volume of wastewater not recovered from the
MS4 is considered to have reached surface water unless the storm drain system discharges to a dedicated storm water or groundwater infiltration basin (e.g.,
infiltration pit, percolation pond).
CATEGORY 2
Discharges of untreated or partially treated wastewater of 1,000 gallons or greater resulting from an enrollee’s sanitary sewer system failure or flow condition that do not reach surface water, a drainage channel, or a MS4 unless the entire SSO discharged to the storm drain system is fully recovered and disposed of properly.
CATEGORY 3
All other discharges of untreated or partially treated wastewater resulting from an
enrollee’s sanitary sewer system failure or flow condition.
PRIVATE LATERAL
SEWAGE
DISCHARGE (PLSD)
Discharges of untreated or partially treated wastewater resulting from blockages or other problems within a privately owned sewer lateral connected to the enrollee’s sanitary sewer system or from other private sewer assets. PLSDs that the enrollee becomes aware of may be voluntarily reported to the California Integrated Water Quality System (CIWQS) Online SSO Database.
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 2 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
Table 2 – Notification, Reporting, Monitoring, and Record Keeping Requirements
ELEMENT REQUIREMENT METHOD
NOTIFICATION
(see section B of
MRP)
Within two hours of becoming aware of any Category 1 SSO greater than or equal to
1,000 gallons discharged to surface water or
spilled in a location where it probably will be
discharged to surface water, notify the California Office of Emergency Services (Cal OES) and obtain a notification control number.
Call Cal OES at:
(800) 852-7550
REPORTING
(see section C of
MRP)
Category 1 SSO: Submit draft report within three business days of becoming aware of the SSO and certify within 15 calendar days of SSO end date.
Category 2 SSO: Submit draft report within 3 business days of becoming aware of the SSO and certify within 15 calendar days of the SSO end date.
Category 3 SSO: Submit certified report within 30 calendar days of the end of month in which SSO the occurred.
SSO Technical Report: Submit within 45 calendar days after the end date of any Category 1 SSO in which 50,000 gallons or greater are spilled to surface waters.
“No Spill” Certification: Certify that no SSOs occurred within 30 calendar days of the end of the month or, if reporting quarterly, the quarter in which no SSOs occurred. Collection System Questionnaire: Update and
certify every 12 months.
Enter data into the CIWQS Online
SSO Database (http://ciwqs.waterboards.ca.gov/), certified by enrollee’s Legally Responsible Official(s).
WATER
QUALITY
MONITORING
(see section D of
MRP)
Conduct water quality sampling within 48 hours after initial SSO notification for Category 1 SSOs in which 50,000 gallons or greater are spilled to surface waters.
Water quality results are required
to be uploaded into CIWQS for Category 1 SSOs in which 50,000
gallons or greater are spilled to surface waters.
RECORD
KEEPING
(see section E of
MRP)
SSO event records.
Records documenting Sanitary Sewer Management Plan (SSMP) implementation and changes/updates to the SSMP. Records to document Water Quality Monitoring for SSOs of 50,000 gallons or greater spilled to surface waters. Collection system telemetry records if relied upon to document and/or estimate SSO Volume.
Self-maintained records shall be available during inspections or upon request.
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 3 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
B. NOTIFICATION REQUIREMENTS
Although Regional Water Quality Control Boards (Regional Water Boards) and the State Water Board (collectively, the Water Boards) staff do not have duties as first responders, this MRP is an appropriate mechanism to ensure that the agencies that have first responder duties are notified in a timely manner in order to protect public health and beneficial uses.
1. For any Category 1 SSO greater than or equal to 1,000 gallons that results in a discharge to a surface water or spilled in a location where it probably will be discharged to surface water, either directly or by way of a drainage channel or MS4, the enrollee shall, as soon as
possible, but not later than two (2) hours after (A) the enrollee has knowledge of the discharge, (B) notification is possible, and (C) notification can be provided without substantially impeding cleanup or other emergency measures, notify the Cal OES and obtain
a notification control number.
2. To satisfy notification requirements for each applicable SSO, the enrollee shall provide the information requested by Cal OES before receiving a control number. Spill information requested by Cal OES may include: i. Name of person notifying Cal OES and direct return phone number.
ii. Estimated SSO volume discharged (gallons).
iii. If ongoing, estimated SSO discharge rate (gallons per minute).
iv. SSO Incident Description:
a. Brief narrative.
b. On-scene point of contact for additional information (name and cell phone number).
c. Date and time enrollee became aware of the SSO.
d. Name of sanitary sewer system agency causing the SSO.
e. SSO cause (if known).
v. Indication of whether the SSO has been contained.
vi. Indication of whether surface water is impacted.
vii. Name of surface water impacted by the SSO, if applicable.
viii. Indication of whether a drinking water supply is or may be impacted by the SSO.
ix. Any other known SSO impacts.
x. SSO incident location (address, city, state, and zip code).
3. Following the initial notification to Cal OES and until such time that an enrollee certifies the SSO report in the CIWQS Online SSO Database, the enrollee shall provide updates to Cal OES regarding substantial changes to the estimated volume of untreated or partially treated sewage discharged and any substantial change(s) to known impact(s).
4. PLSDs: The enrollee is strongly encouraged to notify Cal OES of discharges greater than or equal to 1,000 gallons of untreated or partially treated wastewater that result or may result in a discharge to surface water resulting from failures or flow conditions within a privately owned
sewer lateral or from other private sewer asset(s) if the enrollee becomes aware of the PLSD.
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 4 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
C. REPORTING REQUIREMENTS
1. CIWQS Online SSO Database Account: All enrollees shall obtain a CIWQS Online SSO
Database account and receive a “Username” and “Password” by registering through CIWQS. These accounts allow controlled and secure entry into the CIWQS Online SSO Database.
2. SSO Mandatory Reporting Information: For reporting purposes, if one SSO event results
in multiple appearance points in a sewer system asset, the enrollee shall complete one SSO
report in the CIWQS Online SSO Database which includes the GPS coordinates for the
location of the SSO appearance point closest to the failure point, blockage or location of the
flow condition that caused the SSO, and provide descriptions of the locations of all other
discharge points associated with the SSO event.
3. SSO Categories i. Category 1 – Discharges of untreated or partially treated wastewater of any volume
resulting from an enrollee’s sanitary sewer system failure or flow condition that:
a. Reach surface water and/or reach a drainage channel tributary to a surface water; or
b. Reach a MS4 and are not fully captured and returned to the sanitary sewer system or not otherwise captured and disposed of properly. Any volume of wastewater not
recovered from the MS4 is considered to have reached surface water unless the storm drain system discharges to a dedicated storm water or groundwater infiltration basin (e.g., infiltration pit, percolation pond).
ii. Category 2 – Discharges of untreated or partially treated wastewater greater than or equal to 1,000 gallons resulting from an enrollee’s sanitary sewer system failure or flow condition that does not reach a surface water, a drainage channel, or the MS4 unless the
entire SSO volume discharged to the storm drain system is fully recovered and disposed of properly.
iii. Category 3 – All other discharges of untreated or partially treated wastewater resulting
from an enrollee’s sanitary sewer system failure or flow condition.
4. Sanitary Sewer Overflow Reporting to CIWQS - Timeframes
i. Category 1 and Category 2 SSOs – All SSOs that meet the above criteria for Category 1 or Category 2 SSOs shall be reported to the CIWQS Online SSO Database: a. Draft reports for Category 1 and Category 2 SSOs shall be submitted to the CIWQS Online SSO Database within three (3) business days of the enrollee becoming aware
of the SSO. Minimum information that shall be reported in a draft Category 1 SSO report shall include all information identified in section 8.i.a. below. Minimum information that shall be reported in a Category 2 SSO draft report shall include all information identified in section 8.i.c below.
b. A final Category 1 or Category 2 SSO report shall be certified through the CIWQS Online SSO Database within 15 calendar days of the end date of the SSO. Minimum information that shall be certified in the final Category 1 SSO report shall include all information identified in section 8.i.b below. Minimum information that shall be certified in a final Category 2 SSO report shall include all information identified in section 8.i.d below.
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 5 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
ii. Category 3 SSOs – All SSOs that meet the above criteria for Category 3 SSOs shall be reported to the CIWQS Online SSO Database and certified within 30 calendar days after the end of the calendar month in which the SSO occurs (e.g., all Category 3 SSOs occurring in the month of February shall be entered into the database and certified by March 30). Minimum information that shall be certified in a final Category 3 SSO report shall include all information identified in section 8.i.e below.
iii. “No Spill” Certification – If there are no SSOs during the calendar month, the enrollee shall either 1) certify, within 30 calendar days after the end of each calendar month, a “No Spill” certification statement in the CIWQS Online SSO Database certifying that there
were no SSOs for the designated month, or 2) certify, quarterly within 30 calendar days after the end of each quarter, “No Spill” certification statements in the CIWQS Online SSO Database certifying that there were no SSOs for each month in the quarter being reported
on. For quarterly reporting, the quarters are Q1 - January/ February/ March, Q2 - April/May/June, Q3 - July/August/September, and Q4 - October/November/December.
If there are no SSOs during a calendar month but the enrollee reported a PLSD, the enrollee shall still certify a “No Spill” certification statement for that month.
iv. Amended SSO Reports – The enrollee may update or add additional information to a certified SSO report within 120 calendar days after the SSO end date by amending the report or by adding an attachment to the SSO report in the CIWQS Online SSO Database. SSO reports certified in the CIWQS Online SSO Database prior to the adoption date of
this MRP may only be amended up to 120 days after the effective date of this MRP. After 120 days, the enrollee may contact the SSO Program Manager to request to amend an SSO report if the enrollee also submits justification for why the additional information was
not available prior to the end of the 120 days.
5. SSO Technical Report
The enrollee shall submit an SSO Technical Report in the CIWQS Online SSO Database within 45 calendar days of the SSO end date for any SSO in which 50,000 gallons or greater are spilled to surface waters. This report, which does not preclude the Water Boards from
requiring more detailed analyses if requested, shall include at a minimum, the following:
i. Causes and Circumstances of the SSO:
a. Complete and detailed explanation of how and when the SSO was discovered.
b. Diagram showing the SSO failure point, appearance point(s), and final destination(s).
c. Detailed description of the methodology employed and available data used to
calculate the volume of the SSO and, if applicable, the SSO volume recovered.
d. Detailed description of the cause(s) of the SSO.
e. Copies of original field crew records used to document the SSO.
f. Historical maintenance records for the failure location.
ii. Enrollee’s Response to SSO:
a. Chronological narrative description of all actions taken by enrollee to terminate the spill.
b. Explanation of how the SSMP Overflow Emergency Response plan was implemented
to respond to and mitigate the SSO.
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 6 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
c. Final corrective action(s) completed and/or planned to be completed, including a schedule for actions not yet completed.
iii. Water Quality Monitoring:
a. Description of all water quality sampling activities conducted including analytical
results and evaluation of the results.
b. Detailed location map illustrating all water quality sampling points.
6. PLSDs
Discharges of untreated or partially treated wastewater resulting from blockages or other problems within a privately owned sewer lateral connected to the enrollee’s sanitary sewer system or from other private sanitary sewer system assets may be voluntarily reported to the
CIWQS Online SSO Database.
i. The enrollee is also encouraged to provide notification to Cal OES per section B above when a PLSD greater than or equal to 1,000 gallons has or may result in a discharge to
surface water. For any PLSD greater than or equal to 1,000 gallons regardless of the spill destination, the enrollee is also encouraged to file a spill report as required by Health and Safety Code section 5410 et. seq. and Water Code section 13271, or notify the
responsible party that notification and reporting should be completed as specified above and required by State law.
ii. If a PLSD is recorded in the CIWQS Online SSO Database, the enrollee must identify the sewage discharge as occurring and caused by a private sanitary sewer system asset and should identify a responsible party (other than the enrollee), if known. Certification of PLSD reports by enrollees is not required.
7. CIWQS Online SSO Database Unavailability
In the event that the CIWQS Online SSO Database is not available, the enrollee must fax or e-mail all required information to the appropriate Regional Water Board office in accordance with the time schedules identified herein. In such event, the enrollee must also enter all
required information into the CIWQS Online SSO Database when the database becomes available.
8. Mandatory Information to be Included in CIWQS Online SSO Reporting
All enrollees shall obtain a CIWQS Online SSO Database account and receive a “Username” and “Password” by registering through CIWQS which can be reached at CIWQS@waterboards.ca.gov or by calling (866) 792-4977, M-F, 8 A.M. to 5 P.M. These accounts will allow controlled and secure entry into the CIWQS Online SSO Database.
Additionally, within thirty (30) days of initial enrollment and prior to recording SSOs into the CIWQS Online SSO Database, all enrollees must complete a Collection System Questionnaire (Questionnaire). The Questionnaire shall be updated at least once every 12
months.
i. SSO Reports At a minimum, the following mandatory information shall be reported prior to finalizing and certifying an SSO report for each category of SSO:
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 7 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
a. Draft Category 1 SSOs: At a minimum, the following mandatory information shall be reported for a draft Category 1 SSO report:
1. SSO Contact Information: Name and telephone number of enrollee contact
person who can answer specific questions about the SSO being reported.
2. SSO Location Name.
3. Location of the overflow event (SSO) by entering GPS coordinates. If a single
overflow event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the SSO appearance point explanation field.
4. Whether or not the SSO reached surface water, a drainage channel, or entered and was discharged from a drainage structure.
5. Whether or not the SSO reached a municipal separate storm drain system.
6. Whether or not the total SSO volume that reached a municipal separate storm drain system was fully recovered.
7. Estimate of the SSO volume, inclusive of all discharge point(s).
8. Estimate of the SSO volume that reached surface water, a drainage channel, or was not recovered from a storm drain.
9. Estimate of the SSO volume recovered (if applicable).
10. Number of SSO appearance point(s).
11. Description and location of SSO appearance point(s). If a single sanitary sewer
system failure results in multiple SSO appearance points, each appearance point must be described.
12. SSO start date and time.
13. Date and time the enrollee was notified of, or self-discovered, the SSO.
14. Estimated operator arrival time.
15. For spills greater than or equal to 1,000 gallons, the date and time Cal OES was
called.
16. For spills greater than or equal to 1,000 gallons, the Cal OES control number.
b. Certified Category 1 SSOs: At a minimum, the following mandatory information shall be reported for a certified Category 1 SSO report, in addition to all fields in section 8.i.a :
1. Description of SSO destination(s).
2. SSO end date and time.
3. SSO causes (mainline blockage, roots, etc.).
4. SSO failure point (main, lateral, etc.).
5. Whether or not the spill was associated with a storm event.
6. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the overflow; and a schedule of major milestones for those steps.
7. Description of spill response activities.
8. Spill response completion date.
9. Whether or not there is an ongoing investigation, the reasons for the investigation
and the expected date of completion.
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 8 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
10. Whether or not a beach closure occurred or may have occurred as a result of the SSO.
11. Whether or not health warnings were posted as a result of the SSO.
12. Name of beach(es) closed and/or impacted. If no beach was impacted, NA shall be selected.
13. Name of surface water(s) impacted.
14. If water quality samples were collected, identify parameters the water quality samples were analyzed for. If no samples were taken, NA shall be selected.
15. If water quality samples were taken, identify which regulatory agencies received
sample results (if applicable). If no samples were taken, NA shall be selected.
16. Description of methodology(ies) and type of data relied upon for estimations of the SSO volume discharged and recovered.
17. SSO Certification: Upon SSO Certification, the CIWQS Online SSO Database will issue a final SSO identification (ID) number.
c. Draft Category 2 SSOs: At a minimum, the following mandatory information shall be reported for a draft Category 2 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO.
d. Certified Category 2 SSOs: At a minimum, the following mandatory information shall be reported for a certified Category 2 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO and Items 1-9, and 17 in section 8.i.b above for Certified Category 1 SSO.
e. Certified Category 3 SSOs: At a minimum, the following mandatory information shall
be reported for a certified Category 3 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO and Items 1-5, and 17 in section 8.i.b above for Certified Category 1 SSO.
ii. Reporting SSOs to Other Regulatory Agencies These reporting requirements do not preclude an enrollee from reporting SSOs to other regulatory agencies pursuant to state law. In addition, these reporting requirements do not replace other Regional Water Board notification and reporting requirements for SSOs.
iii. Collection System Questionnaire The required Questionnaire (see subsection G of the SSS WDRs) provides the Water
Boards with site-specific information related to the enrollee’s sanitary sewer system. The enrollee shall complete and certify the Questionnaire at least every 12 months to facilitate program implementation, compliance assessment, and enforcement response.
iv. SSMP Availability
The enrollee shall provide the publicly available internet web site address to the CIWQS
Online SSO Database where a downloadable copy of the enrollee’s approved SSMP, critical supporting documents referenced in the SSMP, and proof of local governing board approval of the SSMP is posted. If all of the SSMP documentation listed in this subsection is not publicly available on the Internet, the enrollee shall comply with the following procedure:
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 9 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
a. Submit an electronic copy of the enrollee’s approved SSMP, critical supporting documents referenced in the SSMP, and proof of local governing board approval of the SSMP to the State Water Board, within 30 days of that approval and within 30 days of any subsequent SSMP re-certifications, to the following mailing address:
State Water Resources Control Board Division of Water Quality
Attn: SSO Program Manager 1001 I Street, 15th Floor, Sacramento, CA 95814
D. WATER QUALITY MONITORING REQUIREMENTS:
To comply with subsection D.7(v) of the SSS WDRs, the enrollee shall develop and implement an SSO Water Quality Monitoring Program to assess impacts from SSOs to surface waters in which 50,000 gallons or greater are spilled to surface waters. The SSO Water Quality Monitoring Program, shall, at a minimum:
1. Contain protocols for water quality monitoring.
2. Account for spill travel time in the surface water and scenarios where monitoring may not be
possible (e.g. safety, access restrictions, etc.).
3. Require water quality analyses for ammonia and bacterial indicators to be performed by an accredited or certified laboratory.
4. Require monitoring instruments and devices used to implement the SSO Water Quality Monitoring Program to be properly maintained and calibrated, including any records to document maintenance and calibration, as necessary, to ensure their continued accuracy.
5. Within 48 hours of the enrollee becoming aware of the SSO, require water quality sampling for, at a minimum, the following constituents:
i. Ammonia
ii. Appropriate Bacterial indicator(s) per the applicable Basin Plan water quality objective or Regional Board direction which may include total and fecal coliform, enterococcus, and e-coli.
E. RECORD KEEPING REQUIREMENTS:
The following records shall be maintained by the enrollee for a minimum of five (5) years and shall be made available for review by the Water Boards during an onsite inspection or through an information request:
1. General Records: The enrollee shall maintain records to document compliance with all provisions of the SSS WDRs and this MRP for each sanitary sewer system owned including any required records generated by an enrollee’s sanitary sewer system contractor(s).
2. SSO Records: The enrollee shall maintain records for each SSO event, including but not
limited to:
i. Complaint records documenting how the enrollee responded to all notifications of possible or actual SSOs, both during and after business hours, including complaints that do not
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 10 of 11 Statewide Waste Discharge Requirements for Sanitary Sewer Systems
result in SSOs. Each complaint record shall, at a minimum, include the following information:
a. Date, time, and method of notification.
b. Date and time the complainant or informant first noticed the SSO.
c. Narrative description of the complaint, including any information the caller can
provide regarding whether or not the complainant or informant reporting the potential
SSO knows if the SSO has reached surface waters, drainage channels or storm
drains.
d. Follow-up return contact information for complainant or informant for each complaint
received, if not reported anonymously.
e. Final resolution of the complaint.
ii. Records documenting steps and/or remedial actions undertaken by enrollee, using all
available information, to comply with section D.7 of the SSS WDRs.
iii. Records documenting how all estimate(s) of volume(s) discharged and, if applicable, volume(s) recovered were calculated.
3. Records documenting all changes made to the SSMP since its last certification indicating
when a subsection(s) of the SSMP was changed and/or updated and who authorized the
change or update. These records shall be attached to the SSMP.
4. Electronic monitoring records relied upon for documenting SSO events and/or estimating the
SSO volume discharged, including, but not limited to records from:
i. Supervisory Control and Data Acquisition (SCADA) systems
ii. Alarm system(s)
iii. Flow monitoring device(s) or other instrument(s) used to estimate wastewater levels, flow
rates and/or volumes.
F. CERTIFICATION
1. All information required to be reported into the CIWQS Online SSO Database shall be certified by a person designated as described in subsection J of the SSS WDRs. This designated person is also known as a Legally Responsible Official (LRO). An enrollee may have more than one LRO.
2. Any designated person (i.e. an LRO) shall be registered with the State Water Board to certify reports in accordance with the CIWQS protocols for reporting.
3. Data Submitter (DS): Any enrollee employee or contractor may enter draft data into the CIWQS Online SSO Database on behalf of the enrollee if authorized by the LRO and registered with the State Water Board. However, only LROs may certify reports in CIWQS.
4. The enrollee shall maintain continuous coverage by an LRO. Any change of a registered LRO or DS (e.g., retired staff), including deactivation or a change to the LRO’s or DS’s contact information, shall be submitted by the enrollee to the State Water Board within 30
days of the change by calling (866) 792-4977 or e-mailing help@ciwqs.waterboards.ca.gov.
Sewer System Management Plan 2019 SSMP Update
Attachment A3
California Regional Water Quality Control
Board, Region 9, Order R9-2007-0005 entitled
Waste Discharge Requirements for Sewage
Collection Agencies in the San Diego Region
Sewer System Management Plan
2019 SSMP Update
Attachment B
SSO Response, Notification and Reporting
Workflow
Utilities receives
compliant call
Normal Business
Hours?
Utilities Receptionist
routes call to
Utilities Admin
Utilities Admin
receives complaint
and notifies Utilities
Supervisor
Utilities Supervisor
identifies First
Responder crew
Utilities Admin
dispatches First
Responder crew
First Responder
crew investigates
issue
Sewer-Related?
First Responder sets
up containment and
requests additional
resources, if needed
Spill response crew
resolves blockage
Spill response crew
lead oversees
cleanup of spill site
Spill response crew
lead documents spill
response activities
on SMART App or
SSO Report Form
Spill response crew
lead provides draft
spill report
documentation to
Utilities Supervisor
Utilities Supervisor
performs internal
and external
notifications
Utilities Supervisor
or designee enters
draft SSO report in
CIWQS
If of value, Utilities
Supervisor will
arrange a debrief
with Utilities
Manager and First
Responder
Complainant
notified to call Police
Department non-
emergency line
(760) 931-2197
Police Department
operator collects
information and
notifies Construction
Maintenance Duty
Construction
Maintenance Duty
investigates issue
Sewer-Related?
Construction
Maintenance Duty
contacts Collections
Duty
Collections Duty
responds to site
with Combination
Truck and becomes
First Responder
Large spill or spill
response issues
encountered?
Wastewater
Operations Crew or
Duty receives lift
station alarm via
SCADA or
SmartCover
Wastewater
Operations Crew or
Duty investigates lift
station alarm
Yes
Yes
Yes
Utilities Supervisor
documents Lessons
Learned
No
Yes
Pump station
spill?
Wastewater
Operations Crew
calls Wastewater
Ops Lead
Wastewater Ops
Lead calls Utilities
Supervisor and
proceeds to site
Wastewater
Operations crew
resolves pump
station issue
Yes
Wastewater Ops
Lead requests SSO
spill cleanup and
reporting support
Done No
Document
investigation
Document
investigation No
Sanitary Sewer Overflow Response, Notification and Reporting Workflow
7/2/2019
Normal Business Hours: 8:00 a.m. to 5:00 p.m.,
Monday thru Friday, except Holidays
After Hours: 5:00 p.m. to 8:00 a.m.,
Monday thru Friday, Weekends, & Holidays
Utilities Manager
certifies SSO in
CIWQS
Done
Sewer System Management Plan 2019 SSMP Update
Attachment D
Asset Management Master Plan
Asset Management Master
Plan
Prepared for
Carlsbad Municipal Water District & the City of Carlsbad
June 2019
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
Asset Management Master Plan Update Log
For use by City of Carlsbad for Asset Management Master Plan Updates
Version No. Update Date Summary of Updates Updated By
0 5/2019 Asset Management Master Plan Created HDR, Carlsbad MWD & City of Carlsbad
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | i
Contents
1 Introduction ....................................................................................................................................... 1-1
1.1 Purpose of the Asset Management Master Plan ................................................................... 1-1
1.2 Asset Management Program Overview ................................................................................. 1-1
1.3 Asset Management Master Plan Organization....................................................................... 1-6
1.4 Program Participants .............................................................................................................. 1-6
1.5 Overview of Wastewater, Potable Water and Recycled Water Assets .................................. 1-7
1.6 Study Areas ............................................................................................................................ 1-7
2 Wastewater....................................................................................................................................... 2-1
2.1 System Inventory, Performance & Replacement Cost ........................................................... 2-1
2.2 Gravity Sewers and Manholes ............................................................................................... 2-4
2.2.1 Age-Based Forecast.................................................................................................. 2-4
2.2.2 Performance-Based Forecast ................................................................................... 2-6
2.2.3 Recommended Investment Levels .......................................................................... 2-52
2.3 CIP Recommendations ........................................................................................................ 2-53
2.4 Condition and Capacity CIP Project Coordination ............................................................... 2-57
2.5 Opportunities ........................................................................................................................ 2-57
2.6 Asset Valuation .................................................................................................................... 2-58
2.7 InfoMaster and Project Packaging Workflow ....................................................................... 2-58
3 Potable and Recycled Water ............................................................................................................ 3-1
3.1 System Inventory, Performance, & Replacement Cost .......................................................... 3-1
3.2 Pipelines, Valves, and Service Laterals ................................................................................. 3-4
3.2.1 Age-Based Forecast.................................................................................................. 3-4
3.2.2 Performance-Based Forecast ................................................................................... 3-5
3.2.3 Recommended Investment Levels .......................................................................... 3-32
3.3 CIP Recommendations ........................................................................................................ 3-33
3.4 Condition and Capacity CIP Project Prioritization ................................................................ 3-41
3.5 Opportunities ........................................................................................................................ 3-41
3.6 Asset Valuation .................................................................................................................... 3-42
Figures
Figure 1-1. Water Main and Recycled Water Main Performance .............................................................. 1-3
Figure 1-2. Gravity Sewer and Manhole Renewal Cost Forecast.............................................................. 1-4
Figure 1-3. Potable and Recycled Water Pipeline, Valve and Services Cost Forecast ............................ 1-5
Figure 1-4. Water and Recycled Water Service Area ................................................................................ 1-8
Figure 1-5. Sewer Service Area ................................................................................................................. 1-9
Figure 2-1. Gravity Sewer Pipe by Install Year .......................................................................................... 2-2
Figure 2-2. Gravity Sewer Business Risk Exposure ................................................................................ 2-10
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
ii | June 2019
Figure 2-3. Additive BRE versus Multiplicative BRE ................................................................................ 2-12
Figure 2-4. Gravity Sewer Likelihood of Failure ....................................................................................... 2-14
Figure 2-5. Defect Images Used for Defect Score Development............................................................. 2-17
Figure 2-6. Gravity Sewer Consequence of Failure ................................................................................. 2-23
Figure 2-7. Manhole Business Risk Exposure ......................................................................................... 2-27
Figure 2-8. Manhole Likelihood of Failure ................................................................................................ 2-29
Figure 2-9. Manhole Consequence of Failure.......................................................................................... 2-31
Figure 2-10. Gravity Sewer Condition Risk Mitigation Decision Logic Flow Diagram ............................. 2-35
Figure 2-11. Manhole Condition Risk Mitigation Decision Logic Flow Diagram ...................................... 2-39
Figure 2-12. Cost to Renew Gravity Sewers by BRE Thresholds ........................................................... 2-42
Figure 2-13. Gravity Sewer Renewal and Monitoring Action Results ...................................................... 2-45
Figure 2-14. Condition Risk Mitigation Decision Logic Renewal Results for Gravity Sewers ................. 2-46
Figure 2-15. Condition Risk Mitigation Decision Logic Monitoring Results for Gravity Sewers ............... 2-47
Figure 2-16. Gravity Sewer CIP Renewal Cost Forecast Results ........................................................... 2-48
Figure 2-17. Condition Risk Mitigation Decision Logic Results for Manholes ......................................... 2-50
Figure 2-18. Gravity Sewer and Manhole Renewal Cost Forecast ......................................................... 2-53
Figure 3-1. Age Alone is a Poor Indicator of Pipe Condition and Remaining Useful Life .......................... 3-5
Figure 3-2. Benchmarking of City Performance & Investment Levels ....................................................... 3-7
Figure 3-3. System Performance verses Investment Level Relationship .................................................. 3-8
Figure 3-4. Deterioration of AC Pipe at Vista Irrigation District .................................................................. 3-9
Figure 3-5. Forecasted Deterioration of City Pipelines .............................................................................. 3-9
Figure 3-6. 50-year City Pipeline Replacement Forecast ........................................................................ 3-10
Figure 3-7. Near-term Pipeline Replacement Project Map ...................................................................... 3-11
Figure 3-8. Map of Project 1 – Bolero Street ........................................................................................... 3-13
Figure 3-9. Map of Project 2 – Adams Street........................................................................................... 3-15
Figure 3-10. Map of Difficult to Access Pipe ............................................................................................ 3-16
Figure 3-11. Map of Project 3 – Caringa & Altisma ................................................................................. 3-18
Figure 3-12. Picture of Difficult to Access Area #1 .................................................................................. 3-19
Figure 3-13. Picture of Difficult to Access Area #2 .................................................................................. 3-19
Figure 3-14. Picture of Difficult to Access Area #3 .................................................................................. 3-20
Figure 3-15. Picture of Difficult to Access Area #4 .................................................................................. 3-21
Figure 3-16. Picture of Difficult to Access Area #5 .................................................................................. 3-22
Figure 3-17. Picture of Difficult to Access Area #6 .................................................................................. 3-23
Figure 3-18. Example of Plastic Pipe Failure Analysis ............................................................................ 3-26
Figure 3-19. Example of Soil Survey ....................................................................................................... 3-27
Figure 3-20. Example of Close-Interval Survey ....................................................................................... 3-28
Figure 3-21. Example of Targeted Excavation and Measurement of Pipe Wall Thickness ..................... 3-28
Figure 3-22. Example of In-Pipe Electromagnetic Technology................................................................ 3-29
Figure 3-23. Example of Small Diameter In-Pipe Electromagnetic Technology ...................................... 3-30
Figure 3-24. Savings by Evolving from an Age-based to Performance-based Program ......................... 3-33
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | iii
Tables
Table 1-1. Carlsbad Asset Summary ......................................................................................................... 1-7
Table 2-1. Gravity Sewer Replacement Cost ............................................................................................. 2-2
Table 2-2. Manhole Replacement Cost ..................................................................................................... 2-4
Table 2-3. Age-based Useful Life .............................................................................................................. 2-4
Table 2-4. 40-Year Age-based Renewal Forecast .................................................................................... 2-5
Table 2-5. Gravity Sewer Cleaning Frequency .......................................................................................... 2-8
Table 2-6. Business Risk Exposure Score Components and Weights ...................................................... 2-9
Table 2-7. Defect Score ........................................................................................................................... 2-21
Table 2-8. Count of Defects Score ........................................................................................................... 2-21
Table 2-9. Cleaning Frequency Score ..................................................................................................... 2-21
Table 2-10. Capacity ................................................................................................................................ 2-22
Table 2-11. Spill Volume Potential ........................................................................................................... 2-24
Table 2-12. Public Health and Environmental Impact .............................................................................. 2-24
Table 2-13. Emergency Response Impact ............................................................................................... 2-25
Table 2-14. Business Risk Exposure Score Components and Weights .................................................. 2-25
Table 2-15. Condition Assessment Scoring ............................................................................................. 2-30
Table 2-16. Business Risk Exposure Summary....................................................................................... 2-37
Table 2-17. Renewal Action BRE Thresholds .......................................................................................... 2-43
Table 2-18. Condition Assessment Monitoring Action Basis ................................................................... 2-43
Table 2-19. Gravity Sewer Risk Mitigation Action Results ....................................................................... 2-44
Table 2-20. Gravity Sewer CIP Renewal Cost Forecast .......................................................................... 2-48
Table 2-21. Manhole CIP Renewal Cost Forecast .................................................................................. 2-51
Table 2-22. Small Diameter Gravity Sewer CCTV Inspection Forecast .................................................. 2-51
Table 2-23. Large Diameter Gravity Sewer CCTV Inspection Forecast .................................................. 2-52
Table 2-24. CIP Forecast for Sewer Line Refurbishments and Replacement ......................................... 2-54
Table 2-25. CIP Forecast for Sewer Line Condition Assessment............................................................ 2-56
Table 3-1. Summary of Pipe Infrastructure by Installation Decade ........................................................... 3-2
Table 3-2. Current Water Pipe Replacement Cost .................................................................................... 3-3
Table 3-3. Age-Based Useful Life .............................................................................................................. 3-5
Table 3-4. 50-Year Age-based Renewal Forecast .................................................................................... 3-5
Table 3-5. Opinion of Cost for Project 1 – Bolero Street ......................................................................... 3-14
Table 3-6. Opinion of Cost for Project 2 – Adams Street ......................................................................... 3-17
Table 3-7. Opinion of Cost for Project 3 – Caringa & Altisma .................................................................. 3-23
Table 3-8. Opinion of Cost for 30-year Condition Assessment Program ................................................. 3-25
Table 3-9. Initial Metallic Pipe Condition Assessment Prioritization ........................................................ 3-31
Table 3-10. Renewal Forecast Comparison ............................................................................................ 3-32
Table 3-11. CIP Forecast for Potable & Recycled Water Pipelines, Valves and Service Laterals .......... 3-35
Table 3-12. Reservoir Repair and Maintenance CIP ............................................................................... 3-37
Table 3-13.Reservoir Maintenance Schedule and Costs ........................................................................ 3-39
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
iv | June 2019
Appendices
Appendix A. Defect Codes and Scores
Appendix B. InfoMaster Risk Model Implementation Notes
Appendix C. Cost Factors
Appendix D. Asset Valuation and Replacement Costs
Appendix E. InfoMaster Updates
Appendix F. Map of Water Access Issues
Appendix G. Corrosion of AC Pipe
Appendix H. Assessment of City AC Testing
Appendix I. Break Rate and Replacement Rate Comparison
Appendix J. Water Pipeline and Valve Cumulative Annual Investment
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | v
Acronyms and Abbreviations
AMP Asset Management Master Plan
BRE business risk exposure
CCFRPM
CCTV
Centrifugally Cast Fiberglass Reinforced Polymer Mortar
closed-circuit television
CIP capital improvement project
CIPP cured-in-place pipe
City or CMWD City of Carlsbad and Carlsbad Municipal Water District
COF consequence of failure
d/D flow depth to pipe diameter
ea
FTE
each
full time equivalent
FY
LD
fiscal year
large diameter
LF
LOF
Linear feet
likelihood of failure
mi
NASSCO
miles
National Association of Sewer Service Companies
POF probability of failure
SD small diameter
SLD straight line depreciation
SSMP Sewer System Management Plan
SSO sanitary sewer overflow
SWQCB State Water Quality Control Board
USGS United States Geological Survey
WDR Waste Discharge Requirements
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
vi | June 2019
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 1-1
1 Introduction
This section includes the purpose and focus of the Asset Management Master Plan (AMP),
the asset management program overview, AMP organization, AMP development
participants, summary of assets and study areas included in the AMP.
1.1 Purpose of the Asset Management Master Plan
The City of Carlsbad and Carlsbad Municipal Water District (City) operate, maintain, and
renew sanitary sewer, potable water, and recycled water infrastructure. The replacement
cost of this infrastructure is estimated to be over $2.1 billion per Section 1.5. As the
system continues to age and deteriorate, the City seeks to sustain high levels of
service at acceptable levels of risk, while minimizing cost.
This AMP provides a strong foundation for condition assessment and capital improvement
program (CIP) planning that aligns with and supports the 2018 Potable Water, Recycled
Water and Sewer Master Plan Updates (Master Plan Updates). This initial AMP focuses
in detail on the following infrastructure:
• Gravity sewer mains and manholes
• Potable water pipelines, valves, service laterals and appurtenances
• Recycled water pipelines valves, service laterals and appurtenances
CIP development and asset valuation is also included for wastewater force mains, all pump
stations, and all reservoirs. This AMP is intended to be a living document that is updated
as City programs evolve.
1.2 Asset Management Program Overview
The primary goal of the Asset Management Program is to minimize the total cost of owning
and operating infrastructure assets, while delivering the level of service that stakeholders
demand, at acceptable levels of risk. It is clear that the City has been managing assets
effectively, when compared to regional and local averages, from the high level of service
provided to customers and low asset failure rates. A summary of the City’s level of service
goals, system performance and the value of investing in a performance and condition-
based asset management program versus an age based renewal program is provided
below. The details of how these estimated cost savings were determined are provided in
subsequent chapters.
In the wastewater collection systems industry, a key metric is sanitary sewer overflow
(SSO) count per 100 miles of sewer per year. The City is located in State Water Quality
Control Board (SWQCB) Region 9 and the average performance in Region 9 of sewer
systems without sewer lateral responsibility is currently between 1 and 1.5 SSOs per 100
miles per year. The City is currently performing better than this average SSO rate, which
indicates a higher than average level of service provided to customers. The City’s
wastewater level of service goal for gravity sewers and manholes is zero structural
condition-caused SSOs. The City did not experience any structural condition-caused
SSOs in 2018, thus meeting its level of service goal of zero incidences.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
1-2 | June 2019
In the water and recycled water industry, system performance is often measured in terms
of “break rate,” which measures the annual number of main breaks per 100 miles of pipe
operated. Recent research1 indicates that the average break rate in the California/Nevada
region is 9.7 annual breaks per 100 miles. The City’s combined potable and recycled water
systems have experienced break rates of 1.7 and 0.5 respectively over the past ten years.
(Of the total length of the combined system, the potable water mains represent 85% and
recycled water mains are 15%). These systems are combined for break rate comparisons
and analysis. The system-wide break rate for the City’s potable and recycled water
system is 1.5 or roughly six times better than the regional average. Even in Southern
California, where soil condition and the materials used tend to result in longer useful lives,
and where the cost of water drives utilities to manage aging infrastructure more proactively,
the City operates within the top quartile of utilities in terms of system performance.
The water and recycled water level of service goal for mains in the near term is a break
rate less than or equal to 2 main breaks per 100 miles of pipe per year on average. Over
time the City may evaluate level of service against cost and adjust the level of service goal
as the system deteriorates. Figure 1-1 presents utility performance relative to other
utilities2 with break rate on the x-axis and the annual system replacement rate on the y-
axis. The proposed 5-year CIP in the AMP for water and recycled water pipeline
replacement is the same system replacement rate as other utilities with similar
break rates and is appropriate for the City’s system performance. However, as the
system ages, increases in water pipe replacement will be needed to maintain low
break rates.
The capacity of wastewater, water and recycled water systems is becoming less of a driver
for capital improvements due to conservation and growth forecasts as presented in the
2018 Master Plan Updates. In contrast, the system conditions have become a more
significant driver for capital improvements. As the systems age and deteriorate the City
will need to increase investments in condition-related capital improvements and continue
to implement asset management strategies to proactively maintain or improve service
levels.
1 The average break rate in California and Nevada is 9.7 per Folkman’s 2018 report titled Water Main
Break Rates in the USA AND Canada: A Comprehensive Study.
2 The “other” utilities identified in this figure are Vista Irrigation Vista Irrigation District, San Dieguito WD,
Rainbow MWD, Padre Dam MWD, Helix WD, Sweetwater Authority, City of San Juan Capistrano, Mesa
WD, City of Buena Park, City of Long Beach, Contra Costa WD, East Bay MWD, City of Phoenix, and
Denver Water. A table of these results is included in Appendix I.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 1-3
Figure 1-1. Water Main and Recycled Water Main Performance
Based on age alone, significant investment in the City’s water and sewer infrastructure
would be required, totaling approximately $1.1 billion through FY2058/2059. However,
industry experience and City staff experience informs us that age alone is not a good
predictor of condition or system investment need. Continued investments in the asset
management program is expected to result in lower infrastructure renewal costs than
identified through age-based forecasts. These continued investments in asset
management will identify the best value for the City and ratepayers. Significant potential
savings have been identified through the City’s asset management programs including the
following.
• City staff have adopted maintenance strategies to avoid costly capital renewal, to
minimize the cost of owning infrastructure and to extend infrastructure useful life.
One of those strategies is to clean gravity sewer pipes more frequently rather than
replace pipes with moderate sags. This strategy has saved the City approximately
$4 million in capital investment at the expense of approximately $70,000 in gravity
sewer cleaning per year.
• The condition-based and performance-based asset management approach is
saving the City approximately $12.9 million when compared to the age-based
forecast for gravity sewer and manhole renewal over the next 5 years. The
condition-based forecast and age-based forecast comparison is presented in
Figure 1-2. This forecast utilizes the average cost per year for the age-based
forecast over the next 40 years and does not include inflation.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
1-4 | June 2019
Figure 1-2. Gravity Sewer and Manhole Renewal Cost Forecast
• By moving from an age-based to a performance-based program, Figure 1-3 shows
that the City will save approximately $665 million dollars in unnecessary potable
water and recycled water pipeline, valve and service replacement (an average of
$13.3 million per year). This forecast utilizes the average cost per year for the age-
based forecast over the next 50 years and does not include inflation. A table of the
results presented in Figure 1-3 is included in Appendix J.
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Figure 1-3. Potable and Recycled Water Pipeline, Valve and Services Cost Forecast
One key investment need identified through the AMP development process is the need to
fill the vacant asset management support staff position. This staff position should be
maintained in the City’s asset management program and filled as soon as practicable.
Skills needed for this position include knowledge of NASSCO PACP condition defect
coding, Tableau, InfoMaster, GIS, and database management and analysis. This
recommendation is based on the workload required to support key asset management
program components including:
• Performance metrics – approximately 0.1 full time equivalent (FTE) staff
• Condition and break data management, QA/QC and assessment – approximately
0.3 FTE staff
• Condition Repair and rehabilitation planning support – approximately 0.5 FTE staff
• Scheduling support – approximately 0.1 FTE staff
A second key investment need is to develop a roadmap for implementing ongoing asset
management program improvements. This roadmap will take this AMP to the next step,
providing a clear communication tool regarding the path forward, including opportunities
identification, initiative priorities and schedule. Opportunities for further enhancement to
the City’s ongoing asset management program are captured in the subsequent chapters
of the AMP for each system.
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1.3 Asset Management Master Plan Organization
The organization of this AMP was initially developed through a series of workshops with
City staff. The AMP is divided into two sections:
• Section 2 – Wastewater. The Wastewater section includes asset management
planning for the sanitary sewer system. The focus of this section is gravity sewers
and manholes.
• Section 3 – Potable Water and Recycled Water. This section includes asset
management planning for the potable water and recycled water systems. The
focus of this section is pipelines, valves, service laterals, and appurtenances.
1.4 Program Participants
The AMP was developed through a series of workshops and reviews by the Asset
Management Team, which included both City staff members and HDR staff. City
participants include the following:
• Stephanie Harrison – Utilities Asset Manager (Project Manager)
• Terry Smith – Engineering Manager
• Don Wasko – Utilities Manager
• Jesse Castaneda – Utilities Supervisor
• Lindsey Stephenson – Senior Engineer
• Lindsay Leahy – Associate Engineer
• Tim Smith – Utilities Maintenance Planner
• Brian Alcala – Wastewater Utilities Staff
• Eric Sanders – Utilities Supervisor
• Matt Jacobs – Utilities Supervisor
• Mark Biskup – Associate Engineer
• Cathy Nhothsavath – Assistant Engineer
AMP development was supported by HDR staff including:
• Jennifer Duffy, Project Manager
• Eric Scherch, Deputy Project Manager
• Dave Spencer, Asset Manager
• Joel Engleson, Hydraulic Modeling and Asset Management Support
• Amanda Leipard, Risk Model and Business Decision Logic Programming
• Tom McCormack, Asset Management Support
• Ernesto Mejia, Programming
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1.5 Overview of Wastewater, Potable Water and Recycled
Water Assets
The City owns and manages approximately $2.1 billion in infrastructure supporting its
wastewater, potable water and recycled water systems. Included in Table 1-1 is a
summary of key assets owned by the City including asset count, asset length, and
replacement cost.
Table 1-1. Carlsbad Asset Summary
System Asset Type Asset Count
Length of Assets
(feet) Replacement Cost ($)
Wastewater
Gravity Sewers 6,699 1,402,949 $398,000,000
Manholes 5,881 - $85,000,000
Force Mains 11 22,974 $14,000,000
Pump Stations 11 - $31,000,000
Wastewater Subtotal 12,602 1,425,923 $528,000,000
Potable Water
Water Main 16,629 2,374,643 $983,000,000
Valves 13,542 -
Service Line 36,380 790,454
Pump Stations 3 - $29,000,000
Reservoirs 12 - $273,000,000
Potable Water Subtotal 66,566 3,165,097 $1,285,000,000
Recycled Water
Water Main 1,451 410,527 $187,000,000
Service Line 1,036 34,989
Valves 826 -
Pump Stations 4 - $44,000,000
Reservoirs 4 - $66,000,000
Recycled Water
Subtotal 3,320 445,516 $297,000,000
Total 82,488 5,036,536 $2,110,000,000
Notes:
Replacement costs are for capital costs including soft and construction costs and are in 2019 dollars.
Agua Hedionda and Buena Vista wastewater force mains are not included.
1.6 Study Areas
The study areas for the AMP are the Carlsbad MWD water and recycled water service
area and the City of Carlsbad sewer service area, which are shown in Figure 1-4 and
Figure 1-5, respectively.
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Figure 1-4. Water and Recycled Water Service Area
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Figure 1-5. Sewer Service Area
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2 Wastewater
This section focuses on asset management planning for the sanitary sewer system and
includes a summary of system condition and performance, age-based and performance-
based condition assessment and renewal forecasts, and CIP recommendations for gravity
sewers and manholes. Also included in this section are opportunities for continuous
improvement of the sewer asset management program.
2.1 System Inventory, Performance & Replacement Cost
A summary of the City’s wastewater infrastructure with length and count of assets and
replacement cost is included in Table 1-1. These results are based on the City’s
infrastructure database of record, which is the City’s Geographic Information System
(GIS). Carlsbad provided readily available GIS files with updates as of May 30, 2018,
specifically GIS layers containing data on gravity mains, manholes, pumps, and
pressurized mains. The analysis excluded infrastructure not owned by Carlsbad3.
The sewer system performance monitoring and measurements are driven by SWQCB
Waste Discharge Requirements (WDRs) and are documented in the City’s Sewer System
Management Plan (SSMP). A key metric is SSO count per 100 miles of sewer per year.
The City is located in SWQCB Region 9 and the average performance of medium sized
sewer systems with between 100 and 500 miles of sewer in Region 9 in 2017 and 2018 is
1.5 SSOs per 100 miles per year. The City is currently performing better than this average
SSO rate in 2017 and 2018 which indicates a higher than average level of service provided
to customers. In 2018, the City experienced zero structural condition-caused SSOs.
The sewer system is aging. Figure 2-1 presents the miles of gravity sewer pipe by install
year and material with the install years grouped into 5-year periods. However, age is
typically not a good indicator of condition for specific infrastructure as many factors
contribute to deterioration. The City’s condition assessment program includes readily
available higher quality data for 63 percent of gravity sewer mains inspected after January
1, 2015 and 76 percent of manholes. The City has lower quality, older condition
assessment data in a readily available format for approximately 30 percent of gravity
sewers. All readily available condition data indicates that approximately 3.6 percent of
gravity sewer mains and 1.7 percent of manholes are recommended for renewal based on
the selection criteria identified in the AMP. These percentages are low, indicating the
system is performing well with respect to condition. As the City continues to inspect the
sewer system, additional renewal projects will be identified.
The current replacement cost of the gravity sewers and manholes is $483 million dollars.
A summary of existing pipeline infrastructure and replacement costs are included in
Table 2-1 and Table 2-2. The basis for the replacement unit cost estimates includes recent
3 Infrastructure with an OWNEDBY field of “CBD” in GIS is included. The SHAPELENGTH field is used
for length. Infrastructure with a STATUS field of Abandoned, Not in Service and Future were excluded.
Gravity sewer interceptors with cost sharing between regional utilities are included for those portions of
the interceptors identified with the OWNEDBY of “CBD” in GIS.
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bid costs from the City and other utilities and assumed soft costs for planning, design,
legal, construction administration, ownership administration, and contingencies.
Figure 2-1. Gravity Sewer Pipe by Install Year
Table 2-1. Gravity Sewer Replacement Cost
Gravity Sewers
Diameter
Unit Cost
($ per Mile) Miles Replacement Cost (Million)
4 $846,230 0.006 $0.004
6 $846,230 15.56 $13.2
8 $846,230 201.86 $170.8
10 $1,057,790 17.75 $18.8
12 $1,269,350 10.93 $13.9
14 $1,480,900 - -
15 $1,586,680 2.70 $4.3
16 $1,692,460 0.09 $0.1
18 $1,904,020 2.04 $3.9
20 $2,115,580 0.51 $1.1
21 $2,221,360 1.35 $3.0
24 $2,538,690 4.28 $10.9
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Table 2-1. Gravity Sewer Replacement Cost
Gravity Sewers
Diameter
Unit Cost
($ per Mile) Miles Replacement Cost (Million)
27 $2,856,030 0.98 $2.8
30 $3,173,370 0.01 $0.03
36 $3,490,700 2.07 $7.9
39 $3,808,040 0.25 $1.0
42 $4,125,380 3.94 $17.5
48 $4,442,710 1.00 $5.1
60 $5,077,390 0.07 $0.4
Subtotal 265.40 $274.7
Soft Cost Percentage of Construction Cost
Type Percentage Cost (Million)
Planning (CEQA and Permitting) 3% $8.2
Design 10% $27.5
Legal 2% $5.5
Construction Administration 15% $41.2
Ownership Administration 5% $13.7
Contingency 10% $27.5
Total Soft Costs 45% $123.6
Total Replacement Cost $398.3
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Table 2-2. Manhole Replacement Cost
Manholes
Count of Manholes Unit Cost (each) Replacement Cost (Million)
5881 $10,529.18 $61.9
Soft Cost Percentage of Construction Cost
Soft Cost Type Percentage Cost (Million)
Planning (CEQA and Permitting) 3% $1.9
Design 2% $1.2
Legal 2% $1.2
Construction Administration 15% $9.3
Ownership Administration 5% $3.1
Contingency 10% $6.2
Total Soft Costs 45% $27.9
Total Replacement Cost $84.8
2.2 Gravity Sewers and Manholes
This section documents the age-based and performance-based forecasts for gravity
sewers and manholes.
2.2.1 Age-Based Forecast
Age-based gravity sewer and manhole replacement costs were developed using unit costs
established in Section 2.1 and Appendix C, an assumed 2% annual inflation factor, City-
documented infrastructure installation years, and City-provided useful life estimates, which
are summarized in Table 2-3.
Table 2-3. Age-based Useful Life
Class Assumed Useful Life (Years)
Wastewater Pipe-ABS 75
Wastewater Pipe-ACP 25
Wastewater Pipe-CI 25
Wastewater Pipe-CI-Critical 20
Wastewater Pipe-DIP 25
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Table 2-3. Age-based Useful Life
Class Assumed Useful Life (Years)
Wastewater Pipe-ESVCP 75
Wastewater Pipe-FPVC 75
Wastewater Pipe-FPVC Forcemain1 50
Wastewater Pipe-HDPE 100
Wastewater Pipe-HDPE Force Main1 50
Wastewater Pipe-CCFRPM-Force Main 50
Wastewater Pipe-CCFRPM-NP 75
Wastewater Pipe-PVC 100
Wastewater Pipe-PVC-Critical 50
Wastewater Pipe-PVC-Force Main 50
Wastewater Pipe-RCP 75
Wastewater Pipe-RCP-Force Main 50
Wastewater Pipe-VCP 75
Wastewater Pipe-VCP-Critical 50
Wastewater Pipe-VCP-Force Main 50
Wastewater Pipe-STL-Force Main1 50
Manholes2 75
Notes: 1 Based on similar values provided by Carlsbad 2 Based on industry experience
Table 2-4 summarizes the results of a 40-year age-based replacement forecast. Including
inflation, this method forecasts an average of $7.0 million dollars per year. A summary of
age-based forecasts for gravity sewers, manholes, force mains, and pump stations is
included in Appendix D.
Table 2-4. 40-Year Age-based Renewal Forecast
Timeframe
Cost without Inflation
(Million) Cost with Inflation (Million)
Cumulative (FY19/20-FY58/59) $196.0 $280.4
Average Annual (FY19/20-FY58/59) $4.9 $7.0
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2.2.2 Performance-Based Forecast
The performance-based forecast for gravity sewers and manholes incorporates sewer
system performance, institutional knowledge, and City condition data. The approach
used to develop the performance-based forecast for gravity sewer and manhole
condition assessment and renewal needs utilizes a condition risk mitigation
decision logic (decision logic).
The decision logic for gravity sewers and manholes provides a transparent, defensible,
and consistent approach for decision makers and is used to communicate risk, level of
service, and cost to stakeholders. The decision logic is also used to develop high
confidence risk mitigation forecasts.
The decision logic leverages the City’s closed-circuit television (CCTV) inspections and
other readily available data for gravity sewers to recommend a preliminary renewal or
condition assessment action, identify risk associated with each inspected gravity sewer,
and associate a cost with each recommended mitigation action. City staff review and
update preliminary recommendations made by the decision logic when packaging projects.
Although the rules built into the decision logic are based on professional and engineering
judgment, they do not replace the need for review and validation by skilled professionals.
The purpose of this section is to document the development process, decision logic inputs,
methodology for assessing risk and the risk mitigation actions. The City will refine the
decision logic over time based on adaptive management principals and lessons learned
through implementing the decision logic.
The City has selected InfoMaster software by Innovyze to manage the risk model and
decision logic.
Development Process
A series of workshops were conducted in 2018 with City staff to develop the decision logic,
risk model and CIP recommendations on July 25, September 12, September 19, October
24, October 29, and December 18. A summary of the content of each workshop by
workshop number is included below:
1. Identification of priorities for the AMP.
2. Gathering information about the City’s current risk mitigation decision making
policies and practices. The Asset Management Team discussed business risk
exposure scoring (BRE) including likelihood of failure (LOF) and consequence of
failure (COF) risk.
3. Detailed review of defects; Grouping of defects by severity and renewal methods
(e.g., replacement, open-cut point repair, lining, trenchless repair, robotic cutting);
Review of COF mapping of gravity sewers; Initial review of decision logic for gravity
mains and manholes.
4. Discussion of large diameter sewer pipes that do not have inspection data.
5. Review of potential monitoring schedules.
6. Review of decision logic results, risk scores, unit costs, condition assessment and
renewal forecast scenarios.
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Gravity Sewer Main Inputs
The decision logic includes four key inputs including CCTV inspection data, gravity sewer
cleaning frequencies, hydraulic model data, and GIS data. Each input is described in the
sub-sections below.
CCTV Data
The City’s ongoing CCTV inspection program is comprised of the following inspection
programs:
• Proactive Monitoring – The City proactively inspects gravity sewers with CCTV
inspection. The majority of CCTV inspection data is collected through this program.
City staff currently perform proactive monitoring of small diameter gravity sewers
that are less than or equal to 12 inches in diameter. Large diameter gravity sewers
that are greater than 12 inches in diameter are typically inspected by contractors.
• Requests – Referrals resulting from SSOs, customer calls, and City crews are
examples of how CCTV inspections are generated in the Requests program
• Construction Acceptance – After completion of new construction, repairs,
rehabilitation or replacement of gravity sewers, the renewal work is inspected using
CCTV.
As of summer 2017, the City has CCTV data on approximately 93 percent of the gravity
sewer collection system. The City historically utilized CUES CCTV software and a custom
CCTV defect coding system. Currently, the City collects data in the National Association
of Sewer Service Companies (NASSCO) Pipeline Assessment Certification Program
(PACP) format in CUES CCTV software GraniteNet. The CCTV data includes defect codes
that identify structural condition defects in gravity sewer pipes. This CCTV data is a primary
input that drives the decision logic results and data quality is important. City staff indicate
that data collected prior to January 1, 2015 utilized different inspection data collection
priorities and practices and the data quality is not as consistent as data collected after
January 1, 2015. As a result, City staff review of decision logic recommendations will be
important. CCTV inspections are recommended to be planned in the near-term to close
this data gap. This AMP utilizes the historical CUES CCTV data for forecasts.
HDR industry experience analyzing defect deterioration over time indicates that defects
such as cracks in the pipe barrel (not at the joint) with roots through the cracks deteriorate
significantly over time. Consequently, the CUES CCTV data was updated to identify these
defects with a new defect code “CrackRoots” if a crack defect and root defect were located
within 1 foot of each other. Another finding is that defects with displaced soil behind the
defect, such as holes in pipe with voids visible, deteriorate significantly faster over time
than other Grade 5 structural defects. These have been incorporated into the use of CCTV
data in the decision logic.
Cleaning Data
CCTV data documents pipe condition at the time of inspection. However, gravity pipes can
deteriorate at different rates. In particular, frequent gravity sewer cleaning can result in
pipe deterioration. The City’s gravity sewer cleaning frequencies range from 3 months to
4 years. The gravity sewer GIS layer includes these cleaning frequencies which were used
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to approximate deterioration rates. Table 2-5 displays the gravity sewer system’s cleaning
frequency. Typically, the system is cleaned over a 4 year period.
Table 2-5. Gravity Sewer Cleaning Frequency
Cleaning Frequency Attribute Name
3 months QT- Quarterly
6 months SAN-Semi-Annually
12 months ANN-Annually
12 months SCH – School Schedule
24 months 24M-1-24 Month Schedule – Year 1 24M-2-24 Month Schedule – Year 2
36 months 36M-1-36 Month Schedule –Group 1 36M-2-36 Month Schedule – Group 2
48 months 48M – 48 Month Schedule
None NP- Not in Program
Hydraulic Model Data
The City has hydraulic capacity information for gravity sewers based on analysis of their
hydraulic model. Pipes with less available capacity can have a higher risk of SSO if a
structural collapse or blockage due to condition issues occurs. Hydraulic model capacity
data is incorporated into the risk model.
GIS Data
The City has extensive GIS data for their assets including gravity sewers and manholes.
This data, along with publicly available GIS information for waters of the state are
incorporated into the decision logic. A description of how this data was utilized is included
in the following sections.
Business Risk Exposure Score
All inspected pipes are prioritized for further renewal or monitoring action based on the
business risk exposure (BRE) score. The BRE is a numerical value representing the
relative business risk for each pipe based on the LOF and COF. A BRE of 100 represents
the highest possible risk where a BRE of 0 represents the lowest possible risk. The BRE
calculation was developed specifically for the City based on a combination of existing City
decision making processes, staff input, and industry experience.
During decision logic calibration, the BRE thresholds that trigger specific risk mitigation
recommendations (trenchless repair, replacement, etc.) were refined and set at the level
necessary to balance cost and risk. These thresholds may be adjusted by the City over
time as additional condition assessment data is gathered and the program is refined. The
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BRE is determined by the pipe’s LOF4 and COF. During development workshops, the
Asset Management Team refined the relative weighting that the decision logic would place
on each of these components. The BRE is comprised of the individual components listed
in Table 2-6.
Table 2-6. Business Risk Exposure Score Components and Weights
Business Risk Exposure Score Component Percent of Business Risk Exposure Score (%)
Likelihood of Failure (LOF)
Defect Score 60
Count of Defects Score 10
Cleaning Frequency Score 5
Pipe Capacity 5
Subtotal 80
Consequence of Failure (COF)
Spill Volume Potential: Pipe Diameter or Hydraulic Model 7
Public Health and Environmental Impact Proximity to Pedestrian Areas or Proximity to Waterways
7
Emergency Response Impact Traffic Control Maintenance/Repair Constraints
6
Subtotal 20
Total 100
The Asset Management Team has deliberately chosen to place a higher importance on
the LOF than the COF. This ratio was determined based on lessons learned from other
industry leading utilities with mature decision logic and the City’s practices. A risk mitigation
action typically reduces the LOF significantly, but has limited or no impact on the COF.
When COF is weighted higher, gravity sewers in good condition that are located in high
consequence areas such as next to a water body can be prioritized higher than gravity
sewers in very poor condition in low consequence areas.
Weighting the COF lower than LOF is in line with City practices and identifies the pipes
with the greatest risk of failure with a higher score and priority for renewal, while still
adequately factoring COF into the decision-making process. The BRE score for each
gravity sewer is mapped in Figure 2-2.
4 LOF is also referred to as the probability of failure in some prior risk model work completed for the City.
The word “probability,” as defined in the dictionary includes a statistics related definition including
“the relative possibility that an event will occur, as expressed by the ratio of the number of actual
occurrences to the total number of possible occurrences.” The risk model does not calculate actual
occurrences so LOF is used in the AMP.
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Figure 2-2. Gravity Sewer Business Risk Exposure
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Some industry guidance on risk such as the Water Environment Research Foundation
(WERF) Sustainable Infrastructure Management Program Learning Environment
(SIMPLE) guidance consider multiplying LOF and COF scores to assess risk. The
additive approach outlined above is based on the ISO31000 multi-criteria decision analysis
approach and was selected by the Asset Management Team because calibrating the
additive approach to match actual prioritization practices is simpler, more efficient, and
more effective.
Figure 2-3 illustrates this concept. Figure 2-3 shows two fracture defects and one large
hole defect with three different LOF and COF scores, including one additive as described
above and two multiplicative. The large hole is the most severe defect and the longitudinal
fracture is the least severe based on City and typical industry practices. Adding the COF
and LOF scores produces a total score that aligns with the City’s practices for identifying
risk. Put simply, COF is still a factor, but COF does not outweigh LOF. Of the two
multiplicative examples shown in Figure 2-3, Example A shows that multiplying COF and
LOF results in the same BRE of 300 for the three defects, which is not in line with City
practices for identifying gravity sewer risk. Example B uses an equation for BRE equal to
1 + COF / 100 multiplied by LOF, which produces results that are closer to City practices,
but do not result in COF having any significant impact on the BRE. A third method could
be used for the multiplicative approach that would yield accurate results, but this would
require developing a custom weighting system for different defects and extensive
calibration. Consequently, the additive approach was found to be the best and most
effective approach for the City.
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Figure 2-3. Additive BRE versus Multiplicative BRE
LOF Score COF Score
Selected
Additive BRE
Approach
COF + LOF
Alternative
Multiplicative BRE
Approach
Example A
COF x LOF
Alternative
Multiplicative BRE
Approach
Example B
(1 + COF/100) x LOF
20 5 25 100 21
20 10 30 200 22
20 15 35 300 23
20 20 40 400 24
30 5 35 150 32
30 10 40 300 33
30 15 45 450 35
30 20 50 600 36
40 5 45 200 42
40 10 50 400 44
40 15 55 600 46
40 20 60 800 48
50 5 55 250 53
50 10 60 500 55
50 15 65 750 58
50 20 70 1000 60
60 5 65 300 63
60 10 70 600 66
60 15 75 900 69
60 20 80 1200 72
LOF + COF is Easier to Calibrate than LOF x COF
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Likelihood of Failure
A workshop was conducted with City staff to refine existing factors for LOF and to weight
each factor. The LOF is 80 percent of the total BRE. LOF is calculated using the following
factors and weights:
LOF = [Defect Score (Max 60)] + [Structural Defect Count (Max 10)] + [Maintenance
Deterioration (Max 5)] + [Capacity (Max 5)]
The LOF score is mapped for each gravity sewer and presented in Figure 2-4.
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Figure 2-4. Gravity Sewer Likelihood of Failure
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DEFECT SCORE
A primary component driving the likelihood of pipe failure is the worst structural defect
present on the pipe. Therefore, the worst defect present in a pipe is the most heavily
weighted factor used to rank and prioritize pipes based on risk.
Defect scores identified through CCTV are grouped by the severity of defect into seven
groups and are scored between 60-0. Defect Severity Group is primarily based on the
structural severity of the defect, with Group 1 generally being the most severe and highest
priority and Group 7 the least severe and lowest priority. The City’s custom defect coding
system includes a severity modifier of small, medium, or large for most defect codes. Also,
some defect codes are more severe than others (e.g., collapsed pipe defect is more severe
than a cracked pipe defect). The Asset Management Team used images of defects to
group typical condition defects by severity using the following general criteria:
• Group 1 – Defect could potentially result in an emergency repair by contractor
• Group 2 – Defect could potentially be prioritized to the top of the repair list
• Group 3 – Some defects could be prioritized for a near term CIP project and others
may be monitored in the future
• Group 4 – Some defects could be prioritized for a CIP project and others could be
monitored in the future
• Group 5 – Most defects could be monitored in the future and others could result in
a CIP project
• Group 6 and Group 7 – Defect could be monitored in the future
Figure 2-5 shows images for the defects by score. Table 2-7 displays the defect scoring
groups and corresponding scores. The defect severity score for each defect code is
included in Appendix A.
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Figure 2-5. Defect Images Used for Defect Score Development
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Table 2-7. Defect Score
Defect Group Defect Score
Group 1 60
Group 2 50
Group 3 30
Group 4 20
Group 5 10
Group 6 5
Group 7 1
COUNT OF DEFECTS
The Count of Defects Score represents the component of the BRE determined by the total
number of significant defects present on a pipe. Significant defects are defects in groups
1 through 4 that receive a defect score of 20 through 60. The Count of Defects Score
assigns a maximum of 10 and the basis for calculating this score is presented in Table 2-8.
Table 2-8. Count of Defects Score
Number of Significant Defects Defect Count Score
1 0
2-3 2
4-5 4
5-7 6
8-10 8
>10 10
CLEANING FREQUENCY
The Cleaning Frequency Score is based on the pipe’s scheduled cleaning frequency, as
cleaning activities can increase the rate of a pipe’s deterioration or the severity of a defect
over time. The Cleaning Frequency Score detail is included in Table 2-9.
Table 2-9. Cleaning Frequency Score
Scheduled Cleaning Frequency Cleaning Frequency Score
48 months or greater 0
36 months 0
24 months 1
Annually (12 months) 3
Semi-Annually (6 months) 5
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Table 2-9. Cleaning Frequency Score
Scheduled Cleaning Frequency Cleaning Frequency Score
Quarterly (3 months) or greater 5
CAPACITY
The hydraulic model information was utilized for a component of the BRE score for a
maximum score of 5. Current hydraulic model criteria for depth of flow to diameter of pipe
ratio (d/D) is utilized. Pipes with a depth of flow to diameter of pipe ratio greater than 0.9 are
considered capacity deficient. The greater the capacity constraint the larger the capacity
score. The Capacity Score detail is included in Table 2-10.
Table 2-10. Capacity
Hydraulic Model Capacity d/D Capacity Score
<=0.25 or Blank 0
>0.25-0.5 1
>0.5-0.9 3
>0.9-1 5
Greater than 1 5
CONSEQUENCE OF FAILURE
A workshop was conducted with City staff to refine existing factors for COF and to weight
each factor. The COF is 20 percent of the total BRE. COF is calculated using the following
factors and weights:
COF = [Spill Volume Potential (Max 7)]) + [Public Health and Environmental Impact (Max
7)] + [Emergency Response (Max 6)]
The resulting COF score for each gravity sewer is mapped in Figure 2-6.
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Figure 2-6. Gravity Sewer Consequence of Failure
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SPILL VOLUME POTENTIAL
The spill volume potential takes into account the diameter of the pipe or the hydraulic
model flow in the pipe. As the pipe diameter increases or as the hydraulic model indicates
an increase in flow the COF score increases. The risk model uses the highest score
between either of the two categories, as detailed in Table 2-11 below.
Table 2-11. Spill Volume Potential
Hydraulic Model Flow (Million Gallons per
Day) Diameter Spill Volume Score
<=0.25 <=8 inches 0
>0.25-0.46 >8 to 12 Inches 1
0.461-1.03 >12 to 21 Inches 3
1.031-3.20 >21 to 27 inches 6
Greater than 3.2 or unknown >27 inches or unknown 7
PUBLIC HEALTH AND ENVIRONMENTAL IMPACT
The public health and environmental impact takes into account the gravity mains near
pedestrian areas or near waterways such as streams, beaches, or lagoons. The pedestrian
areas include schools, parks, and highly visited areas such as LEGOLAND® and the
Carlsbad Village area. The United States Geological Survey (USGS) waterline and water
bodies were used to determine the proximity to water. The highest score from proximity to
waterways or proximity to pedestrian areas is used. The public health and environmental
impact score is detailed in Table 2-12 below.
Table 2-12. Public Health and Environmental Impact
Proximity to Water (feet) Proximity to Pedestrian Areas (feet)
Public Health and
Environmental Impact
Score
>2000 >500 0
>1000-2000 -- 1
>500-1000 >100-500 3
>100-500 >1-100 5
<=100 feet <=1 Within a High Pedestrian Area 7
Emergency Response Impact
The emergency response impact of the COF is indicated by the proximity of gravity mains
to roadway and traffic control types as well as failures within restricted access areas.
Gravity mains near high traffic areas or highly restricted areas such as railroads or private
property increases the COF score. Pipe failure within these areas get a higher score
because of increased difficulty of renewal and the potential for longer duration failure
events. The highest score from traffic control or maintenance and repair constraint areas
is used. The emergency response impact score is presented in Table 2-13.
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Table 2-13. Emergency Response Impact
Traffic Control (Type)
Maintenance and Repair
Constraint Areas
Emergency Response
Impact Score
Local or All Others All Others 0
Collector or Secondary Arterial Thick Pavement (State Street) 1
Major Arterial Street or Access Issue Poor Access (Easement) 3
Prime Arterial Restricted Access (Habitat or Private Property) 5
Freeway No Access – Railroad 6
Detailed implementation notes on the risk model development in InfoMaster software is
included in Appendix E.
Manhole Inputs
Business Risk Exposure Score
Similar to the gravity main BRE, the manhole BRE is a numerical value representing the
relative structural risk for each manhole that has been inspected based on the condition
assessment finding and COF. A BRE of 100 represents the highest possible risk and a
score of 0 represents the lowest possible risk. The BRE calculation was developed
specifically for the City based on a combination of existing City decision making processes,
staff input, and industry experience.
During decision logic calibration, the BRE thresholds that trigger specific risk mitigation
recommendations (replacement/rehabilitation or monitor) were refined and set at the level
necessary to balance cost and risk. These thresholds may be adjusted by the City over
time as additional condition assessment data is gathered and the program is refined.
The BRE is determined by the manhole’s LOF and COF. During development workshops,
the Asset Management Team determined the relative weighting that the decision logic
would place on each of these components. The BRE is comprised of the individual
components listed in Table 2-14.
Table 2-14. Business Risk Exposure Score Components and Weights
Business Risk Exposure Score Component Percent of Business Risk Exposure Score (%)
Likelihood of Failure
Defect Score: Overall Manhole Condition Rating or Manhole Bench Rating
80
Subtotal 80
Consequence of Failure
Spill Volume Potential: Pipe Diameter or Hydraulic Model 7
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Table 2-14. Business Risk Exposure Score Components and Weights
Business Risk Exposure Score Component Percent of Business Risk Exposure Score (%)
Public Health and Environmental Impact Proximity to Pedestrian Areas or Proximity to Waterways 7
Emergency Response Impact Traffic Control Maintenance/Repair Access Constraints
6
Subtotal 20
Total 100
Similar to gravity mains, the Asset Management Team has deliberately chosen to place a
higher importance on the LOF than the COF. This ratio was determined based on lessons
learned from other industry leading utilities with mature decision logic. A risk mitigation
action typically reduces the LOF significantly but has limited or no impact on the COF.
When COF is weighted higher, manholes that are in good condition but are located in high
consequence areas can be prioritized higher than manholes in very poor condition.
Weighting the condition assessment findings in this manner ensures that the manholes
with the greatest risk of structural failure will be scored higher and prioritized for renewal,
while still adequately factoring COF into the decision-making process. Figure 2-7 presents
the BRE for manholes.
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Figure 2-7. Manhole Business Risk Exposure
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LIKELIHOOD OF FAILURE
A workshop was conducted with City staff to identify factors for LOF and to weight each
factor. The LOF is 80 percent of the total BRE. LOF is calculated using the following factors
and weights:
LOF = [Condition Assessment score: Overall Condition Rating or Bench Rating Score
(Max 80)]
The LOF for each manhole is mapped in Figure 2-8.
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• No CUES CCTV Data – this indicates that there is no historical CUES CCTV in the
InfoMaster model. These pipes will be inspected with NASSCO PACP data to
close this data gap.
Secondary notes include:
• Abandoned inspection – Abandoned CCTV inspection, review cause.
• Point Repair – Gravity sewers with a previously completed point repair will be
flagged with a comment. A static list of repairs from SewerRepairs.xlsx is currently
being used.
• JAngularL– Pipe bend – Gravity sewers with a pipe bend are flagged for manhole
installation review
• Pipe Depth greater than or equal to 8 feet – Gravity sewers with a pipe depth of
greater or equal to 8 feet are flagged with a comment
• Pipe Depth greater than or equal to 25 feet – Gravity sewers with downstream
invert elevations greater than or equal to 25 feet below grade, review primary
action accordingly
CCTV defects are grouped by typical primary action types in order to associate appropriate
renewal recommendations with each defect in InfoMaster software. These are referred to
as the Rehab Method in InfoMaster. These structural defect Rehab Methods are
categorized by the Rehab Method and include:
• Open Cut Point Repair – Defects that are typically addressed by open cut repair.
• Trenchless Repair – Defects that typically are addressed through CIPP lining,
patching, or other trenchless repair methods.
• Replacement – Defects that are typically addressed by complete pipe
replacement.
• Robotic Cutter – Defects that are typically addressed through robotic cutting.
As previously illustrated, Figure 2-5 shows the Rehab Method by defect codes, which are
listed in Appendix A.
The flow diagram shown in Figure 2-10 documents the decision logic for gravity mains.
Primary actions are represented by circles in bold and underlined text, secondary notes
are represented by circles at the beginning of the flow diagram in regular font text, and
decision points are represented by diamonds in the flow chart.
Additional description of some decision points in the decision logic include the following:
• Gravity sewers with at least one replacement type defect are recommended for
replacement.
• Gravity sewers with at least one open cut point repair type defect and more than
four open cut point repair or trenchless point repair type defects are recommended
for replacement. This approach is more economical and in line with existing City
practices.
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• Gravity sewers with three or more trenchless repairs are recommended for CIPP
lining.
• Gravity sewers with pipe diameter equal to 6 inches or smaller will not be renewed
with CIPP or trenchless repair.
BRE thresholds are critical decision points in the decision logic. These thresholds are used
to determine whether a gravity sewer is recommended for a renewal action or future
condition assessment monitoring action. If the BRE threshold is set to 30, for example,
gravity sewers with a BRE greater than 30 will be recommended for renewal or more
frequent monitoring. Setting and adjusting the BRE thresholds allows the City to balance
cost, risk, and level of service appropriately and deliver the most value to ratepayers. The
BRE thresholds vary by risk mitigation action to deliver the most value per dollar spent on
renewal. Higher thresholds are used for more costly renewal actions and lower BRE
thresholds are used for cheaper renewal actions. This approach mitigates the most risk at
the lowest cost. The following example scenario illustrates this approach.
Example Scenario: Five gravity sewers have a BRE of 30. One of those gravity sewers
is recommended for CIPP which could cost over $10,000. The remaining four pipes are
recommended for a trenchless repair, which could cost $2,500 each or $10,000 total.
Setting the BRE threshold to 35 for the CIPP renewal and the BRE threshold to 30 for the
trenchless point repair renewal will result in the decision logic recommending spending
$10,000 on trenchless repairs and mitigating the risk on four gravity sewers, vs. spending
$10,000 on mitigating the same risk on one gravity sewer.
A description of the BRE thresholds for the City’s decision logic is included in Table 2-16.
The BRE thresholds are included in the decision logic and are typically shown immediately
prior to the risk mitigation action.
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Figure 2-10. Gravity Sewer Condition Risk Mitigation Decision Logic Flow Diagram
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Gravity Main BRE Results
The BRE is a numerical value representing the relative risk for each gravity sewer that has
been inspected and includes the sum of LOF and COF scores. A summary of the BRE
results is presented in Table 2-16 and includes all pipe in the City’s GIS.
Table 2-16. Business Risk Exposure Summary
BRE Count of Gravity Sewer Mains
Length of Gravity
Sewer Mains (feet)
Percent by
Length (%)
0-4 1970 427,223 27.4%
5-9 3125 572,331 36.7%
10-14 1343 275,124 17.7%
15-19 508 135,651 8.7%
20-24 89 32,631 2.1%
25-29 36 7,486 0.5%
30-34 49 12,971 0.8%
35-39 93 22,511 1.4%
40-44 84 21,745 1.4%
45-49 21 5,906 0.4%
50-54 21 5,375 0.3%
55-59 31 7,590 0.5%
60-64 43 10,542 0.7%
65-69 34 6,327 0.4%
70-74 44 9,771 0.6%
75-79 12 3,374 0.2%
80-84 3 913 0.1%
Total 7506 1,557,470 100.0%
Manhole Risk Management Actions
This section summarizes the methodology for determining the appropriate risk mitigation
action for each manhole that is inspected. The primary action documents the primary risk
management action for the manholes.
Primary actions include:
• Replace or Rehab – Replacement or rehabilitation of the Manhole
• Monitor – Manhole has minor structural defects and is recommended for re-
inspection as part of current gravity main cleaning or CCTV inspection activities
• No Condition Rating – Manhole does not have inspection data
The manhole condition defects are the factors that determine if renewal is recommended
for the manhole. The structural defects that are recommended for renewal include:
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• Business Risk Exposure >=60
• Bench condition is poor
• Corrosion is severe
• Liner Condition is poor
The flow diagram shown in Figure 2-11 documents the decision logic for manholes.
Primary actions are represented by circles at the end of the flow diagram in bold and
underlined text and decision points are represented by diamonds in the flow chart.
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Figure 2-11. Manhole Condition Risk Mitigation Decision Logic Flow Diagram
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Condition CIP, Renewal and Assessment Forecast
This section documents details of the renewal and condition assessment forecasts
including unit costs, BRE thresholds that trigger a risk mitigation action and forecast
results.
Unit Costs
Unit costs were developed based on recent costs from contracted work within the City’s
collection system and recent industry experience at nearby utilities. Unit costs are
calculated by summing the following costs for each gravity sewer pipe diameter and
renewal type:
• Material Cost – Typically the unit cost provided on a construction project bid
tabulation
• Installation Factor – Assumed to address costs such as mobilization, fittings,
excavation, bedding, backfill, traffic control, by-pass pumping, equipment,
labor, pavement or non-ROW patching or improvements.
• Capital Cost Factor – Assumed to address costs related to agency
administration, design, construction management, and construction
contingency.
The unit costs and cost factors for gravity sewers and manholes are included in
Appendix C.
BRE Results and Level of Service Thresholds
Using the decision logic and unit costs, a dashboard tool in Microsoft Excel was developed
to provide results in real time with adjustments to BRE thresholds that trigger renewal
actions. This allowed the Asset Management Team to evaluate cost against risk. This tool
was used to evaluate initial BRE thresholds for the City based on the distribution of BRE
scores for the City’s sewer pipelines. This section presents the development of BRE
thresholds.
Gravity sewers with a BRE greater than the BRE threshold are recommended for renewal
or increased frequency of condition assessment monitoring by the decision logic.
Figure 2-12 shows the cost to renew gravity sewers at different BRE thresholds and level
of service. The cost shown at each BRE threshold is the forecasted cost to perform the
renewal actions identified for the decision logic for gravity sewers with a BRE greater than
the threshold. Figure 2-12 shows that the cost forecast to complete all renewal identified
by the decision logic for gravity sewers with a BRE greater than 30 is $7,600,000. Similarly,
the cost to complete all renewal identified by the decision logic for gravity sewers with a
BRE greater than 40 is $5,900,000.
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Figure 2-12. Cost to Renew Gravity Sewers by BRE Thresholds
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A different BRE threshold is assigned for each renewal type. This allows the City to focus
on lower cost renewal methods and consequently provide the most risk mitigation per rate
payer dollar spent. More expensive renewal actions are assigned a higher BRE threshold
and less expensive renewal actions are assigned a lower BRE threshold as shown in
Table 2-17.
Table 2-17. Renewal Action BRE Thresholds
Renewal Action BRE Threshold Renewal Cost Examples ($)
Replace SD 45 80,000
Open Cut Repair LD 45 57,000
CIPP LD 45 54,000
Open Cut Repair and CIPP SD 35 49,000
Open Cut Repair SD 35 26,000
CIPP SD 35 13,000
Trenchless Repair SD 30 2,500
Cut Tap or Obstacle 30 Nominal Capital Cost
Note: Renewal cost examples for SD renewal actions assume 8 inch diameter pipe. Renewal cost examples for LD renewal actions assume 24 inch diameter pipe. Renewal cost examples assume the renewal action is performed on approximately 200 feet of gravity sewer.
A similar approach was used to determine condition assessment monitoring
BRE thresholds. Available crew productivity and input from staff regarding data quality are
used along with BRE to determine the thresholds. Table 2-18 identifies the monitoring
frequencies and basis for monitoring frequency recommendations. Less frequent
inspection alternatives were evaluated including a 15-year and 12-year frequency for
recently constructed gravity sewers and gravity sewers with no defects. However, data
quality concerns for CCTV data completed prior to 1/1/2015, limited large diameter CCTV
data in the database of record, and City staff concern about SSO risk resulted in the
recommended frequencies presented in Table 2-18.
Table 2-18. Condition Assessment Monitoring Action Basis
Condition Assessment
Monitoring Action Basis
5-Year Monitor LD The City has limited data on large diameter pipe in the CCTV database of record. The City plans to inspect large diameter pipe over 5 years to close this gap.
2-Year Monitor SD Pipes with a BRE greater than or equal to 30 and pipes that are on a quarterly or semi-annual cleaning frequency.
4-Year Monitor SD Pipes that do not meet the above criteria and; 1) have CCTV data prior to 1/1/2015 that may be of lower quality; or 2) non-plastic pipes.
8-Year Monitor SD Pipes that do not meet the above criteria and are plastic.
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Estimated Useful Life
Determining a remaining useful life is challenging for gravity sewers and manholes
because the time of failure is typically not known. Failure may occur when the gravity sewer
is installed or later in the gravity sewer’s life due to cleaning-caused degradation over time
or a contractor dig-in. The City’s CCTV data and manhole inspections provide a snapshot
in time of the condition of a majority of the City’s gravity sewers and manholes. Based on
the BRE thresholds selected by the Asset Management Team, gravity sewers with a
renewal recommendation are assumed to exceed their useful life within the next 5 to 8
years. Gravity sewers recommended for monitoring are expected to exceed their useful
life sometime beyond 8 years after their next planned inspection. These assumptions may
change as the City performs repeat inspections of gravity sewers and determines more
accurate remaining useful life.
Renewal and Condition Assessment Forecasts
This section includes renewal forecasts and condition assessment forecasts for gravity
sewer and manhole infrastructure.
Renewal Forecasts
The BRE thresholds in Table 2-17 and the decision logic were used to forecast renewal
recommendation quantities, condition assessment monitoring quantities and costs for
gravity sewers and manholes. These recommendations from the decision logic will cost
effectively meet the City’s desired renewal and monitoring program policies and are
expected to result in minimal structural SSOs. Table 2-19 and Figure 2-13 summarize the
risk mitigation actions by length and percentage for gravity sewers owned by the City.
Table 2-19. Gravity Sewer Risk Mitigation Action Results
Risk Mitigation Actions Gravity Sewer Length (Feet) Percent by Length (%)
CIPP SD 14,142 1.0
Open Cut Repair + CIPP SD 1,954 0.1
Open Cut Repair SD 8,733 0.6
Open Cut Repair SD - Cost Review 2,905 0.2
Replace SD 12,253 0.9
Trenchless Repair SD 25,321 1.8
2 Year Monitor SD 47,638 3.4
4 Year Monitor SD 709,010 50.6
5 Year Monitor LD 101,161 7.2
8 Year Monitor SD 445,370 31.8
Review SD 32,125 2.3
Review LD 703 0.1
Total 1,401,316 100
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Figure 2-13. Gravity Sewer Renewal and Monitoring Action Results
The renewal actions from the decision logic results are presented in Figure 2-14.
Monitoring actions from the decision logic results are presented in Figure 2-15.
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Figure 2-14. Condition Risk Mitigation Decision Logic Renewal Results for Gravity
Sewers
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Figure 2-15. Condition Risk Mitigation Decision Logic Monitoring Results for Gravity
Sewers
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Costs forecasts for gravity sewer CIP renewal actions for gravity sewers owned by the
City are shown in Figure 2-16 and Table 2-20.
Figure 2-16. Gravity Sewer CIP Renewal Cost Forecast Results
Table 2-20. Gravity Sewer CIP Renewal Cost Forecast
Renewal Action Total
CIPP SD $919,385
Open Cut Repair + CIPP SD $316,504
Open Cut Repair LD - Cost Review $0
Open Cut Repair SD $926,268
Open Cut Repair SD - Cost Review $427,028
Replace SD $3,046,698
Trenchless Repair SD $377,500
Total $6,013,382
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The City will be inspecting large diameter gravity sewer over the next several years.
Approximately 30,000 linear feet is assumed to be inspected per year based on the plan
for a 5-year monitoring schedule. The yield rate for large diameter pipes that have a BRE
greater than 45 is approximately 3 percent of inspected large diameter pipe based on the
results of the decision logic. This 3 percent yield rate multiplied by the 30,000 linear feet
of planned inspection results in 900 linear feet of projected large diameter renewal per
year. The average unit cost for 14 to 24 inch diameter pipe for CIPP and replacement is
$353 per linear foot. This unit cost is applied to the 900 linear feet of projected renewal
resulting in a forecast of $320,000 per year. Based on input from City staff regarding
inspection schedules, renewal work for large diameter pipe is expected to start in
FY2021/2022. The large diameter renewal forecast for years 6-15 is based on the age-
based forecast described in this section and Appendix D.
The manhole decision logic was used to forecast renewal recommendation quantities and
costs for manholes. The decision logic identified 98 manholes for replacement. These
manholes for renewal are shown in Figure 2-17.
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Figure 2-17. Condition Risk Mitigation Decision Logic Results for Manholes
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The 98 manholes identified for renewal represent approximately 1.7 percent of all
manholes. An additional 5 manholes per year are assumed to be identified for renewal
based on input from City staff. A unit cost of $14,425 for replacement of each manhole
(including soft costs) is used to forecast the costs over 5 and 7 years. Table 2-21 presents
the quantities and costs for manhole replacement over a 5 year and 7 year time period.
Table 2-21. Manhole CIP Renewal Cost Forecast
Renewal Action
Timeframe
(years)
Count of
Manholes Total
Replacement (Decision Logic) 5 98 $1,413,648
Replacement (Assumed) 5 25 $360,625
Total 123 $1,774,273
Replacement (Decision Logic) 7 98 $1,413,648
Replacement (Assumed) 7 35 $504,874
Total 133 $1,918,523
Condition Assessment Monitoring Forecasts
Forecasted gravity sewer CCTV inspection to be performed by City crews on small
diameter gravity sewers (12-inch diameter and smaller) is presented in Table 2-22 and is
based on the decision logic results. City staff plan to complete inspections and cleaning of
this average mileage per year, however historical CCTV inspection mileage per year is
approximately 46 miles. The City could utilize City staff overtime to complete the CCTV
inspection miles per year if staff are unable to complete the work within regular hours.
Alternatively, the cost forecast for a contractor to complete the difference of approximately
7.2 miles per year at an assumed unit cost of $1.80 per linear foot is $70,000 per year and
is included in the monitoring CIP forecast. Additional unit costs for CCTV are included in
Appendix C.
Table 2-22. Small Diameter Gravity Sewer CCTV Inspection Forecast
CCTV Inspection Frequency Average Miles per Year
2 year 6.1
4 year 34.1
8 year 10.5
As-Needed Requests1 2.5
Total 53.2
Notes:
1 As-needed request are assumed to be approximately 1 percent of the system mileage per year based on the output of the decision logic and SSO rate.
The forecast for large diameter gravity sewers is based on an inspection frequency of
5 years. The City is currently completing inspections as part of a third party regulatory
action and the 5 year inspection frequency for cost forecasting and planning purposes is
assumed to begin in FY2019/2020. The 5 year frequency was determined by staff to
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mitigate risk and to provide CCTV data in the NASSCO PACP format utilized in the
decision logic for future decision making. Potential near term inspections of large diameter
gravity sewers, based on City staff input, include:
• North Batiquitos Reach 6-9
• North Batiquitos Reach 1-4
• North Agua Hedionda Interceptor
Table 2-23 presents the large diameter gravity sewer assessment cost forecast. Cleaning
costs are currently included with inspection costs based on current City practices. Unit
costs for CCTV inspection and cleaning are included in Appendix C.
Table 2-23. Large Diameter Gravity Sewer CCTV Inspection Forecast
Diameter Linear Feet CCTV and Clean Unit Cost Cost
15 14,117 $4.10 $57,879
16 450 $4.10 $1,846
18 10,782 $4.70 $50,674
20 2,692 $4.70 $12,655
21 7,150 $4.70 $33,606
24 22,812 $9.00 $205,304
27 5,166 $9.00 $46,493
30 45 $9.00 $408
36 10,940 $11.30 $123,622
39 1,182 $19.50 $23,056
42 20,790 $19.50 $405,412
48 5,281 $19.50 $102,978
60 352 $33.00 $11,627
Total 101,760 N/A $1,075,559
2.2.3 Recommended Investment Levels
The condition-based renewal forecasts for gravity sewers and manholes are through the
next 5 years. Beyond 5 years the condition and performance data and forecasts are less
accurate for gravity sewers and manholes, however these forecasts are used to provide
costs for the 15 year CIP in Section 2.2.4.
The condition-based forecasts in Table 2-20 and Table 2-21 and the 40-year age-based
forecast are presented in Figure 2-18 without inflation. The performance-based forecast
result in $12.9 million in savings vs the age-based forecast over the next 5 years.
Continued condition assessment over the next 5 to 10 years will result in additional data
that may be used to develop longer-term condition-based forecasts.
Condition-based forecasts in FY2019/2020 (2020 in the Figure) include an additional $3
million for CIP Project ID 55011 Buena Interceptor Sewer Pipeline and Manhole
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Rehabilitation and additional funds in CIP Project ID 55031 Sewer Line Refurbishments
and Replacement above the forecasted $1.2 million per year.
Figure 2-18. Gravity Sewer and Manhole Renewal Cost Forecast
2.3 CIP Recommendations
There are several AMP related CIP projects in the current 15 year CIP program for
wastewater. Updates are included in this section for the following projects:
• CIP Project ID 55031 Sewer Line Refurbishments and Replacement
• CIP Project ID 55131 Sewer Line Condition Assessment
The following CIP Projects were discussed and City staff indicated the current CIP budget
is appropriate at this time.
• CIP Project ID 38401 Sewer Lift Station Repairs and Upgrades
• CIP Project ID 55201 Odor and Corrosion Prevention Assessment
The 15-year CIP forecast for CIP Project ID 55031 Sewer Line Refurbishments and
Replacement is presented in Table 2-24. This forecast includes costs for gravity sewers
and manholes based on the results of the decision logic as described in previous sections.
Years 6-15 utilize the age-based forecast for large diameter gravity sewers and Years 6-
15 for small diameter gravity sewers and manholes assume the cost per year in the Year
1-5 forecast. These costs include 2% annual inflation.
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Table 2-24. CIP Forecast for Sewer Line Refurbishments and Replacement
Project Title
Year 1
2019-20
Year 2
2020-21
Year 3
2021-22
Year 4
2022-23
Year 5
2023-24
Year
6-10
2025-29
Year
11-15
2030-34
Sewer Line
Refurbishments and
Replacement
(Includes Manholes) $1,530,000 $1,530,000 $1,850,000 $1,850,000 $1,850,000 $13,350,000 $14,050,000
Proposed Small Diameter $1,240,000 $1,240,000 $1,240,000 $1,240,000 $1,240,000 $6,800,000 $7,400,000
Proposed Large Diameter $0 $0 $320,000 $320,000 $320,000 $4,950,000 $4,950,000
Proposed Manhole $290,000 $290,000 $290,000 $290,000 $290,000 $1,600,000 $1,700,000
Notes:
Includes 2% inflation
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The 15-year annual CIP forecast for CIP Project ID 55131 Sewer Line Condition
Assessment is presented in Table 2-25 based on the results of the decision logic described
in previous sections. Small diameter gravity sewer condition assessment is assumed to be
address through existing City staff and a different budget after completion of some
additional assessment in Years 1-5 to close data gaps. The large diameter gravity sewers
forecast in years 6-15 assume the cost per year the Year 1-5 forecast. These costs include
2% annual inflation.
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Table 2-25. CIP Forecast for Sewer Line Condition Assessment
Project Title
Year 1
2019-20
Year 2
2020-21
Year 3
2021-22
Year 4
2022-23
Year 5
2023-24
Year
6-10
2025-29
Year
11-15
2030-34
Sewer Line Condition
Assessment (Includes
Manholes) $300,000 $300,000 $300,000 $300,000 $300,000 $1,240,000 $1,370,000
Proposed small diameter $75,000 $75,000 $75,000 $75,000 $75,000 $0 $0
Proposed Large Diameter $225,000 $225,000 $225,000 $225,000 $225,000 $1,240,000 $1,370,000
Proposed Manhole $0 $0 $0 $0 $0 $0 $0
Notes:
Includes 2% annual inflation
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 2-57
2.4 Condition and Capacity CIP Project Coordination
All current CIP projects were compared to the condition renewal identified in the AMP using
a tabular analysis to compare unique pipe IDs between the CIP projects GIS shapefile and
decision logic output. There is no overlap between the condition and capacity projects.
The capacity projects are identified in the 2018 Sewer Master Plan.
2.5 Opportunities
Throughout development of the AMP, the Asset Management Team identified potential
opportunities for continuous improvement to the asset management program. The City
should consider these opportunities when developing an Asset Management Roadmap
that clearly communicates to stakeholders the prioritized initiatives and a schedule for
implementation. A list of these opportunities for wastewater are included below
• Consider staffing needs resulting from recent vacancy in asset management
support position and potential scheduling support needs.
• Consider utilizing an experienced construction inspector for CIPP to ensure quality
delivery by contractors. Consider NASSCO CIPP construction inspection
certification.
• Update risk for gravity sewer mains to account for the distance to a storm drain
inlet and storm drain outlet. Gravity sewer mains that could spill immediately
upstream from a storm drain outlet are higher risk of an SSO to waters of the state
than gravity sewer mains located thousands of feet upstream from a storm drain
outlet. Utilize the City's storm sewer “quilt” map to support the analysis.
• Consider opportunities to pilot pipe bursting renewal technologies. City staff
identified a potential pipe bursting location at Cannon Road between the I-5 and
Avenida Encinas.
• Consider evaluation of field notes for gravity sewers to better support cleaning
maintenance. Publish maps of gravity sewer cleaning defects identified through
CCTV for use by crews to support cleaning maintenance.
• Consider developing a GIS layer of key trails or other pedestrian areas to be added
to the risk model in the future.
• Develop in InfoMaster a risk model and decision logic for the City’s NASSCO
PACP format CCTV data for use in prioritizing renewal and planning future CIP
projects. Align InfoMaster data update quick reference and project packaging
workflows provided in Appendix E with City practices. Consider updating from
InfoMaster to InfoAsset Planner software. Leverage risk model and decision logic
developed for the AMP.
• After implementation of new CCTV truck and equipment, update business
processes for inspection and renewal decision making and conduct training on
updated business processes.
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2-58 | June 2019
• Review gravity sewer decision logic recommendations for high risk pipe renewal
and develop a construction contract for this work. Review gravity sewers
recommended for review in the decision logic.
• Evaluate CCTV monitoring schedule for small diameter gravity mains using the
initial recommendations provided by the decision logic.
• Consider opportunities to solicit more bids from contractors on inspection work.
• Consider developing a schedule for inspection of each large diameter gravity
sewer and import large diameter gravity sewer CCTV data into the CCTV database
of record. Near term inspections could include North Batiquitos Reach 6-9, North
Batiquitos Reach 1-4, North Agua Hedionda Interceptor.
• Document the pump station and force main condition assessment program and
develop data management to move towards performance-based renewal planning
versus age-based.
• When a significant portion of the gravity sewer mains and manholes have been
inspected for a second time, analyze the data to determine deterioration forecasts
and long-term projections for renewal that are performance-based versus age-
based.
• Update the AMP annually with significant changes or modifications to the program.
2.6 Asset Valuation
The total asset replacement valuation for wastewater assets is $528 million. The
replacement cost for gravity sewers, manholes, force mains, and lift stations is
summarized in Table 1-1. This valuation is based on data that is readily available such as
GIS data, financial records, maintenance and repair records, and replacement and renewal
records. The City currently utilizes an Original Cost Less Depreciation valuation approach.
Where performance-based forecasts were not developed, age was the basis for the
straight-line depreciation calculations using estimated useful life by asset classes to
estimate the asset service life and estimated replacement costs. Assets were "bundled"
into one facility asset or group of facility assets, such as water reservoir or sewer lift station
mechanical, and the total construction cost of the asset value and the useful life for the
facility were applied.
The asset valuation details including useful life assumptions and long-term funding
forecasts by year are included in Appendix D.
2.7 InfoMaster and Project Packaging Workflow
Included in Appendix E are an InfoMaster data update quick reference, InfoMaster field
mapping for CCTV and sewer system data, and project packaging workflows. The data
update quick reference provides a quick reference with instructions for updating data in
InfoMaster when the sewer system changes or the City makes changes to the risk model
or decision logic elements in InfoMaster. The field mapping presented in Appendix E
documents how the CCTV and sewer system data is imported into InfoMaster. The project
workflows are intended to provide a high level overview of how InfoMaster is used in the
renewal project packaging and project close-out process.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-1
3 Potable and Recycled Water
This section includes asset management planning for the potable and recycled water
pipelines, valves and service laterals which includes a summary of system condition and
performance, asset inventory, asset replacement costs, and condition assessment and
replacement forecasts.
3.1 System Inventory, Performance, & Replacement Cost
A summary of the City’s infrastructure with length and count of assets and replacement
cost is included in Table 1-1.
The City’s infrastructure database of record is GIS. The City has two distinct operating
systems for potable and recycled water. Carlsbad provided readily available GIS files with
updates as of November 30, 2016. The datasets used as the basis of this report were
Water_Main, Water_Valve, and Water_Service_Line. Infrastructure that was not owned by
Carlsbad was excluded5. Carlsbad keeps installation dates in several fields. To estimate
the installation year of each pipe, the following procedure was used:
1. Use DWGSIGNDAT, if not populated
2. Use DWGASBUILT, if not populated
3. Use INSTALLDAT, if not populated
4. Use ACCEPTANCE, if not populated
5. Use the year in which the PROJECTNUM associated to the service was
constructed, if not populated
6. Mark as unknown
A summary of active system infrastructure by installation era is included in Table 3-1.
5 Infrastructure with an OWNEDBY field of “CMWD” is included. The SHAPELENGTH field is used for
length. Infrastructure with a STATUS field of Abandoned and Not in Service was excluded. Infrastructure
with a STATUS field of Future is included due to the age of the GIS data used.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-2 | June 2019
Table 3-1. Summary of Pipe Infrastructure by Installation Decade
Installation Era
Potable
(mi)
Recycled
(mi)
Total
(mi)
Unknown 5 - 5
<1960 7 - 7
1960-1969 34 - 34
1970-1979 76 - 76
1980-1989 108 4 112
1990-1999 122 28 151
2000-2009 92 43 135
2010-2017 6 2 8
Total 450 78 527
In the industry, system performance is often measured in terms of “break rate” which
measures the annual number of main breaks per 100 miles of pipe operated. Recent
research6 indicates that the average break rate in the Region is 9.7 annual breaks per 100
miles. The City’s potable and recycled water system has experienced break rates of 1.7
and 0.5 respectively over the past ten years. The system-wide break rate is 1.5 or roughly
six times better than the regional average. Even in Southern California where materials
used and soil conditions tend to result in longer useful lives and the cost of water drives
utilities to manage aging infrastructure more proactively, the City is within the top quartile
of utilities in terms of system performance. While the vast majority of the City’s
infrastructure is expected to have a long life, variables7 will cause some City pipes to
deteriorate much faster than the average. In order to sustain good service levels, the City
will need to make modest investments in condition assessment and replacement to
identify, prioritize, and replace pipes in poor condition.
The current replacement cost of the potable and recycled water pipeline infrastructure8 is
$1.7 billion dollars. A summary of existing pipeline infrastructure and replacement costs
are included in Table 3-2. The basis for this replacement cost estimate includes recent
City and other utility bid costs and assumed soft costs for planning, design, legal,
construction administration, ownership administration, and contingencies.
6 The average break rate in California and Nevada is 9.7 per Folkman’s 2018 report titled Water Main
Break Rates in the USA AND Canada: A Comprehensive Study.
7 Variables that may cause accelerated deterioration include manufacturing quality, construction quality,
internal pressure, external loading, and soil characteristics such as corrosivity and shrink-swell potential.
8 The pipeline replacement cost includes both hard and soft costs for mains, services, and valves. The
cost excludes pressure reducing stations, pump stations, tanks, and other facilities.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-3
Table 3-2. Current Water Pipe Replacement Cost
Diameter (inches) Total Unit Cost ($/mile)
Miles Replacement Cost (Million)
Potable Recycled Total Potable Recycled Total
6 or less $1,725,000 48 11 58 $82 $19 $101
8 $1,875,000 211 29 240 $395 $54 $449
10 $2,100,000 56 1 57 $117 $3 $120
12 $2,250,000 72 19 91 $161 $42 $204
14 $2,625,000 10 1 11 $26 $3 $29
16 $3,000,000 30 3 33 $91 $8 $99
18 $3,150,000 4 3 7 $12 $10 $22
20 $3,525,000 1 2 2 $2 $5 $8
21 $3,863,000 3 - 3 $13 - $13
24 $4,200,000 5 5 10 $21 $19 $41
27 $4,725,000 2 0.4 2 $8 $2 $10
30 $5,250,000 4 4 8 $22 $22 $44
33 $5,775,000 0.2 - 0.2 $1 - $1
36 $6,300,000 4 - 4 $25 - $25
42 $7,350,000 1 - 1 $7 - $7
Total 450 78 527 $983 $187 $1,173
Soft Costs Percentage of Construction Cost
Type Percentage Potable ($M) Recycled ($M) Total ($M)
Planning 3% $29 $6 $35
Design 10% $98 $19 $117
Legal 2% $20 $4 $23
Construction Administration 15% $147 $28 $176
Ownership Administration 5% $49 $9 $59
Contingency 10% $98 $19 $117
Total Soft Costs 45% $442 $84 $528
Total Replacement Cost $1,425 $271 $1,701
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-4 | June 2019
3.2 Pipelines, Valves, and Service Laterals
Over time, pipeline infrastructure (including mains, valves, and service laterals) will
deteriorate, break more often, and ultimately will need to be replaced. This section
establishes prudent, transparent, and justifiable CIP budgets to address aging potable and
recycled water pipeline infrastructure. The CIP budget will enable the City to sustain
desired services levels, maximize the life of existing infrastructure, and mitigate the risk of
large and unplanned rate increases due to aging pipeline infrastructure.
3.2.1 Age-Based Forecast
An age-based pipeline renewal forecast was developed using unit costs established in
Section 3.1, an assumed 2% annual inflation factor, City infrastructure installation years9,
and published useful life estimates from the America Water Works Association (AWWA)
report titled Buried No Longer: Confronting America’s Water Infrastructure Challenge as
summarized in Table 3-3.
9 Approximately one percent of infrastructure had an unknown installation year. The average installation
year of City infrastructure is 1990. For budgeting purposes, it was assumed that this infrastructure was
installed in the average installation year of known City infrastructure (1990).
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-5
Table 3-3. Age-Based Useful Life
Material
Assumed Useful Life
(Years) Miles
PVC 70 240.1
Asbestos Cement 75 234.5
Steel 95 37.3
Ductile Iron 100 12.0
PCCP 75 3.1
Cast Iron 75 0.3
Copper 30 0.2
HDPE 70 0.1
Table 3-4 summarizes the results of a 50-year age-based assessment renewal forecast
for potable water and recycled water pipelines, valves and services. Including inflation, this
method forecasts an average of $44.6 million dollars per year. The 50 year time horizon
was used to account for significant additional potential age-based replacement in the 40
to 50 year timeframe. A summary of age-based forecasts for pipelines, reservoirs, and
pump stations is included in Appendix D.
Table 3-4. 50-Year Age-based Renewal Forecast
Timeframe
Cost without Inflation
(Million) Cost with Inflation (Million)
Cumulative (FY19/20-FY69/70) $1,055.0 $2,229.0
Average Annual (FY19/20-FY69/70) $21.1 $44.6
3.2.2 Performance-Based Forecast
Figure 3-1 illustrates that age alone is a poor indicator of pipe condition and remaining
useful life.
Figure 3-1. Age Alone is a Poor Indicator of Pipe Condition and Remaining
Useful Life
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-6 | June 2019
Institutional knowledge and industry expertise10 suggest that the City’s infrastructure will
last significantly longer than age-based estimates. To verify this, the City has initiated a
water pipeline asset management program to measure infrastructure condition. This has
included a system-wide leak detection program11 and measurement of the remaining
effective wall thickness at five locations12. While some pipes will deteriorate faster than
others, this work has verified that on average, City infrastructure is in good condition and
will last significantly longer than industry standard useful life estimates document in
Section 3.2.1.
Pipeline Renewal
In an effort to establish prudent, transparent, and data driven investment levels that
maximize the life of existing infrastructure, a benchmarking effort was initiated to compare
City performance and investment levels to other similar utilities. Utilities were
benchmarked based on break rate (i.e., annual breaks per 100 miles of pipe owned) and
replacement rate measured as the percentage of the system replaced annually. For
example, it would take 100 years to replace the entire system at a replacement rate of 1%
per year. Figure 3-2, benchmarks the City’s performance versus other similar utilities
where the orange circle is the City and the blue diamonds represent these utilities:
• Vista Irrigation District
• San Dieguito Water District
• Rainbow Municipal Water District
• Padre Dam Municipal Water District
• Helix Water District
• Sweetwater Authority
• City of San Juan Capistrano
• Mesa Water District
• City of Buena Park
• City of Long Beach
• Contra Costa Water District
10 Approximately 90% of the City infrastructure is made up of AC and PVC pipe materials. The predominant
vintages of AC pipe (installed 1970s and later) tend to last much longer than prior vintages of AC pipe
due to advances in manufacturing. Additionally, soils conditions (e.g. low shrink-swell potential) and
modest pressure fluctuations result in relatively low stress levels applied to pipes promoting longer than
average useful life.
11 Using acoustic sensors, the system was evaluated for active leaks. Over time, water leaks will accelerate
pipe deterioration and eventually result in a break that disrupts service and the community. The leak
detection effort identified a relatively small number of active leaks on City owned infrastructure and those
leaks were concentrated in fittings and services as opposed to the main. These leaks were investigated
and resolved.
12 See Appendix H for a detailed discussion of the condition assessment sample results.
Asset Management Master Plan
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June 2019 | 3-7
• East Bay MWD
• City of Phoenix
• Denver Water
A table of the results presented in Figure 3-2 is included in Appendix I.
Figure 3-2. Benchmarking of City Performance & Investment Levels
Each community must find the appropriate balance between service levels and near-term
cost for their community. In general, systems that are performing well do not require
significant investment levels. However, as pipes deteriorate and break more often,
increased investments in pipeline replacement are warranted. Figure 3-3 quantifies this
relationship for the utilities that were benchmarked.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-8 | June 2019
Figure 3-3. System Performance verses Investment Level Relationship
Currently, the City break rates are good relative to other utilities benchmarked. However,
as this infrastructure continues to age and deteriorate, break rates will increase and the
City should consider increasing investment levels to sustain desired service levels. To
quantify how the performance of City infrastructure may deteriorate over the next fifty
years, pipes were categorized into three asset classes (AC, PVC, and metallic) and readily
available deterioration curves from other utilities with similar pipe vintages were leveraged.
For example, Figure 3-4 shows how AC pipe at Vista Irrigation District have deteriorated
as they age. Currently, City AC pipes are breaking at a rate of 2.1. This curve was used to
estimate City AC breaks rates in the future. For example, this curve was used to estimate
the increase in City AC break rates from 2.1 to 6.1 over the next twenty years.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-9
Figure 3-4. Deterioration of AC Pipe at Vista Irrigation District
Figure 3-5 summarizes the twenty year forecasted break rate for each City asset class as
well as an “All Pipe” break rate which considers the quantity of each material class to
estimate overall system performance.
Figure 3-5. Forecasted Deterioration of City Pipelines
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-10 | June 2019
The All Pipe break forecast was applied to estimate investment needs over the next
50 years. Figure 3-6 summarizes these investment needs by replacement rate and
replacement cost with and without a 2% inflation factor.
Figure 3-6. 50-year City Pipeline Replacement Forecast
The recycled water system is performing approximately three times better than the potable
water system. Over the next 50 years, the long term forecast model indicates that
approximately 89% of all water pipeline investments should be targeted to the potable
system and the remaining 11% should be targeted to the recycled water system. Since the
recycled water system is relatively young, near term investments are expected to be even
more focused on the potable water system.
Pipeline Renewal Projects
While most City pipeline infrastructure is expected to last well beyond the average
published useful life estimates from AWWA, the useful life of particular pipes can vary
significantly depending on manufacturing quality, installation quality, variations in
deterioration factors (e.g. soil corrosivity, water corrosivity, presence of ground water), and
variations in pipe stresses (e.g. pressure, ground movement, external loading).
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-11
Readily available data was evaluated13 to identify potential near-term pipe replacement
candidates. These projects were reviewed with staff to identify and remove any projects
where a current renewal project was already planned and budgeted. The result was the
identification of three near-term replacement projects shown in Figure 3-7. The basis for
each project is described in more detail below. The total cost of these projects is
expected to be approximately $8.0 million dollars. The recommended pipe renewal
budget is included in Chapter 3.3 of this report and should allow enough budget to identify
one additional pipeline replacement project in the 5-year budget if a new problem pipe
emerges.
Figure 3-7. Near-term Pipeline Replacement Project Map
13 Project renewal identification included a review of clusters of main breaks and service breaks which may
indicate the pipe is nearing the end of its useful life. The consequence of failure, pipe construction quality,
stress factors (e.g. pressure, ground movement), and the accessibility of pipes were evaluated.
Additional information such as leak detection and condition assessment data was used where it was
readily available.
Project 3 – Caringa & Altisma
Project 2 – Adams St
Project 1 – Bolero St
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-12 | June 2019
Project 1 – Bolero Street
The first project identified has a mainline performance issue on Bolero Street, just south
of El Fuerte Street. An aerial map of the project location is included in Figure 3-8. This 12-
inch AC pipe was installed in 1975 by a single contractor. The pipeline is installed along a
relatively steep slope which causes large pressure changes. Pipes are symbolized as:
• Dark blue lines – Pipes exposed to lower pressures at the top of the hill along
Acuna Court
• Light blue lines - Pipes exposed to moderate pressures.
• Purple lines - Pipes at the bottom of the hill that are exposed to high pressures.
Pressure reducing valves are symbolized in orange. The pipe south of those pressure
reducing valves are exposed to low pressure and are symbolized as dark blue. The main
line pipe breaks in this area (red stars) are concentrated in the portion of this project that
is exposed to high pressure. Therefore, the condition of the pipe in this project may be
similar, however since the pipes in purple experience much higher stresses, breaks are
concentrated in those areas. One additional break has occurred on the moderate pressure
pipe. Three service breaks (yellow stars) have occurred in the cul-de-sacs off of El Fuerte
and Bolero. Breaks in this area can be particularly consequential due to the relatively steep
slope, high pressure, large diameter, and brittle pipe material14. Since this area has a
relatively high consequence of failure and high concentration of breaks, a pipeline
replacement project is recommended. The approximate boundaries of the replacement
project should include the purple and light blue pipes as well as the associated services
and appurtenances. The dark blue lines likely have significant useful life remaining since
they are experiencing much lower pressures. Therefore, the replacement of the dark blue
lines is not recommended. Based on the unit costs in Section 3.1, the estimated cost of
this project is summarized in Table 3-5. The cost and length is summarized by the type of
issue addressed including condition and access issues. The exact extents of the project
should be finalized during design of this pipe replacement.
14 A brittle pipe that fractures generally damages more property and is more difficult to repair than an
equally-sized ductile pipe that merely “leaks.” AC and PVC pipe often fracture during failure. Steel and
ductile iron are more likely to leak.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-13
Figure 3-8. Map of Project 1 – Bolero Street
Managua Place
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-14 | June 2019
Table 3-5. Opinion of Cost for Project 1 – Bolero Street
Diameter
(inches)
Total Unit
Cost
($/mile)
Miles Replacement Cost (Million)
Condition Access Total Condition Access Total
8 $1,875,000 0.33 0 0.33 $0.62 $0 $0.62
12 $2,250,000 0.76 0 0.76 $1.72 $0 $1.72
Construction Cost 1.10 0 1.10 $2.34 $0 $2.34
Soft Costs (% of construction cost) Percentage Total ($M)
Planning, Design Legal, Construction Admin, Contingency 45% $1.05
Total Replacement Cost $3.40
Project 2 – Adams Street
Project 2 identified a mainline performance issue on Adams Street near Park Drive and
Cove Drive. An aerial map of the project location in is included in Figure 3-9. This 10-inch
AC pipe was installed in 1969. There have been five mainline breaks (red stars) and two
service breaks (yellow stars) on the pipe. The pipe in Adams runs along a short but steep
slope as shown in Figure 3-10. A difficult to access pipe traverses this slope and ties into
a pipe on Cove Drive to provide some limited redundancy in the area.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-15
Figure 3-9. Map of Project 2 – Adams Street
Difficult to Access
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-16 | June 2019
Figure 3-10. Map of Difficult to Access Pipe
Breaks in this area can be particularly consequential due to the relatively steep slope, large
diameter, environmental impacts due to the proximity to Agua Hedionda, and brittle pipe
material15. Since this area has a relatively high consequence of failure and high
concentration of breaks, a pipeline replacement project is recommended. The approximate
boundaries of the replacement project should include the purple line as well as the
associated services and appurtenances shown in Figure 3-9. Based on the unit costs in
Section 3.1, the estimated cost of this project is summarized in Table 3-6. The exact
extents of the project should be finalized during design of this pipe replacement. In
particular, the design should consider options to relocate the limited access pipe while
considering any tradeoffs in terms of loss of redundancy. In addition to condition and
access issues, the Water Master Plan identifies potential projects to address fire flows.
During design, these pipes identified for fire flow improvements should be considered.
15 A brittle pipe that fractures generally damages more property and is more difficult to repair than an
equally-sized ductile pipe that merely “leaks.” AC and PVC pipe often fracture during failure. Steel and
ductile iron is more likely to leak.
Difficult to Access
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-17
Table 3-6. Opinion of Cost for Project 2 – Adams Street
Diameter
(inches)
Total Unit
Cost ($/mile)
Miles Replacement Cost ($M)
Condition Access Total Condition Access Total
10 $2,100,000 0.49 0.03 0.52 $1.03 $0.06 $1.09
Construction Cost 0.49 0.03 0.52 $1.03 $0.06 $1.09
Soft Costs (% of construction cost) Percentage Total ($M)
Planning, Design Legal, Construction Admin, Contingency 45% $0.49
Total Replacement Cost $1.58
Project 3 – Caringa & Altisma
Project 3 identified a mainline performance issue near the intersection of Caringa Way and
Altisma Way. An aerial map of the project location is included in Figure 3-11. This 6-inch
and 8-inch AC pipe was installed in the early 1970s. Five main breaks (red stars), two
service breaks (yellow stars), and two leaks (pink triangles) were documented in this area.
Breaks in this area can be particularly consequential due to the brittle pipe material16 and
difficult to access areas. A summary of the difficult to access (DTA) areas are included
below. Pipes are symbolized as:
• Red lines – Pipes with a condition issue
• Yellow lines - Pipes with an access issue.
• Orange lines - Pipes both an access and a condition issue.
16 A brittle pipe that fractures generally damages more property and is more difficult to repair than an
equally-sized ductile pipe that merely “leaks.” AC and PVC pipe often fracture during failure. Steel and
ductile iron is more likely to leak.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-18 | June 2019
Figure 3-11. Map of Project 3 – Caringa & Altisma
DIFFICULT TO ACCESS #1
Difficult to Access area number one (DTA #1) includes a pipe that runs under a narrow,
tree lined walkway that runs through a condominium complex as shown in Figure 3-12.
During design, consider addressing this access issue and alternatives to relocate the main
into the driveway to enable the City to access, maintain, and repair the infrastructure.
DTA #1
DTA #2
DTA #3
DTA #4
DTA #5
DTA #6
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-19
Figure 3-12. Picture of Difficult to Access Area #1
DIFFICULT TO ACCESS #2
Difficult to Access area number two (DTA #2) includes a pipe that runs under a car port
roof structure and traverses under several retaining walls as shown in Figure 3-13. During
design, consider addressing this access issue and consider alternatives to relocate the
main into the street to avoid the roof structure and retaining walls and enable the City to
access, maintain, and repair the infrastructure.
Figure 3-13. Picture of Difficult to Access Area #2
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-20 | June 2019
DIFFICULT TO ACCESS #3
Difficult to Access area number three (DTA #3) includes multiple pipes that run between
narrow gaps within a condominium complex as shown in Figure 3-14. During design,
consider addressing this access issue and alternatives to relocate the main into the street
to enable the City to access, maintain, and repair the infrastructure or transfer ownership.
Figure 3-14. Picture of Difficult to Access Area #3
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-21
DIFFICULT TO ACCESS #4
Difficult to Access area number four (DTA #4) includes a pipe that runs between narrow
gaps within a condominium complex and pool as shown in Figure 3-15. During design,
consider addressing this access issue and consider alternatives to relocate the main or
transfer ownership to enable the City to access, maintain, and repair the infrastructure.
Figure 3-15. Picture of Difficult to Access Area #4
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
3-22 | June 2019
DIFFICULT TO ACCESS #5
Difficult to Access area number five (DTA #5) includes a pipe that runs between a narrow
gap within a condominium complex as shown in Figure 3-16. During design, consider
addressing this access issue and alternatives to relocate the main into the driveway to
enable the City to access, maintain, and repair the infrastructure.
Figure 3-16. Picture of Difficult to Access Area #5
DIFFICULT TO ACCESS #6
Difficult to Access area number six (DTA #6) includes a pipe that runs between a narrow
gap within a condominium complex as shown in Figure 3-17. During design, consider
addressing this access issue and consider alternatives to relocate the main into the
driveway to enable the City to access, maintain, and repair the infrastructure.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-23
Figure 3-17. Picture of Difficult to Access Area #6
PROJECT #3 RECOMMENDATION
Since Project #3 has a relatively high consequence of failure and high concentration of
breaks, a pipeline replacement project is recommended. The approximate boundaries of
the replacement project should include the red and orange pipes and should consider
alternatives to address the difficult to access pipes in Figure 3-11. Based on the unit costs
in Section 3.1, the estimated cost of this project is summarized in Table 3-7. The exact
extents of the project should be finalized during design of this pipe replacement.
Table 3-7. Opinion of Cost for Project 3 – Caringa & Altisma
Diameter
(inches)
Total Unit
Cost
($/mile)
Miles Replacement Cost (Million)
Condition Access Total Condition Access Total
6 or less $1,725,000 0.17 0.37 0.54 $0.29 $0.64 $0.93
8 $1,875,000 0.61 0 0.61 $1.14 $0 $1.14
Construction Cost 0.78 0.37 1.15 $1.43 $0.64 $2.07
Soft Costs (% of construction cost) Percentage Total ($M)
Planning, Design Legal, Construction Admin, Contingency 45% $0.93
Total Replacement Cost $3.00
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Inaccessible Infrastructure
A significant portion of City water main infrastructure is located in areas that are difficult
for City staff to access, maintain, and repair the infrastructure. City staff have developed a
planning level map of known inaccessible areas which is included in Appendix F and the
current replacement cost of this infrastructure based on this map and replacement unit
costs presented in Section 3.1 is $55 million. However the actual cost to eliminate this
access issue is likely significantly higher as pipes that currently run through inaccessible
areas often take the shortest path. Relocating this infrastructure to accessible areas such
as streets would likely increase the costs. Some of the inaccessible infrastructure also
provides important system redundancy and improves water quality. Quantifying the most
cost effective alternative would require a significant amount of planning and design and in
some cases, the analysis may conclude that the current configuration is optimum.
In order to cost effectively mitigate inaccessible infrastructure in the near-term, it is
recommended that project specific evaluations of adjacent inaccessible infrastructure be
conducted during the planning and design of pipeline replacement projects that are
triggered for another reason (e.g. break history, condition, capacity constraint, water
quality, growth). In this way, inaccessible infrastructure issues can be evaluated and
mitigated as part of construction to minimize cost as well as the impact to the community
during construction.
In Section 3.2.2, this approach was incorporated into the pipeline replacement planning
process. Of the infrastructure recommended for replacement, 2.37 miles were based on
condition and 0.40 miles (i.e. 17% more pipes) were triggered because inaccessible pipe
was near a recommended construction project. In order to budget for addressing
inaccessible infrastructure in the future, the factor observed in the planning of these
projects (17%) was applied to performance-based pipeline renewal budget documented in
Section 3.2.2 to identify a budget of $337,000 per year to address access issues.
Pipeline Condition Assessment
A targeted pipeline condition assessment program will support cost effective system
management and risk mitigation by:
• extending the life of some pipes found to be in good condition,
• preventing unnecessary breaks in other pipes found to be in poor condition,
• identifying the most cost-effective renewal technology and project extents, and
• increasing confidence in decision making.
The purpose of this section is to quantify future condition assessment strategies, budgets,
and near-term priorities at a planning level. The City should move forward with plans to
develop a tactical pipeline condition assessment plan which will build off of this effort to
further define projects, priorities, and the most cost effective way to leverage this budget.
The planning level condition assessment strategy has been developed based upon
pipeline material and diameter. A summary of the City’s pipeline condition assessment
forecast is included in Table 3-8. A description of assumptions used in the development of
this forecast are included below. The unit costs used in this section are based on recent
similar work at other utilities and is intended to be used for systematic planning and
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-25
budgeting. Project specific costs will vary based on the unique operating context of each
pipe.
Table 3-8. Opinion of Cost for 30-year Condition Assessment Program
Condition Assessment Task
Quantity Assessed Cost
Value Units Cost per Unit Total Annual
Plastic
Failure Analysis 0.5 ea/yr $6,000 $3,000 $3,000
Asbestos Cement
Testing 20 ea/yr $1,250 $25,000 $25,000
Analysis 1 ea/yr $25,000 $25,000 $25,000
Metallic
Tactical Condition Assessment Plan 1 ea $200,000 $200,000 $7,000
Soil Survey: 10-inches and larger 49 miles $13,200 $646,000 $22,000
Assessment: 10-inch to 16-inch 15 miles $74,000 $1,144,000 $38,000
Assessment: 18-inches and larger 33 miles $275,000 $9,177,000 $306,000
Assessment: 8-inch and smaller 5 miles $79,000 $410,000 $14,000
Total Annual Cost $440,000
Plastic Pipe Condition Assessment Budget
Approximately 45% of the City’s system is plastic. Currently, the industry does not have a
proven and industry accepted method for proactive condition assessment of plastic pipe.
However, an opportunistic condition assessment focused on identifying the root cause of
failure has proven to be cost effective. Plastic pipe has a low break rate compared with
other materials, however when multiple breaks occur on a plastic pipe this can be an
indicator of poor manufacturing and/or construction techniques and future breaks. In these
cases, the City should perform a failure analysis on the pipe sample. This analysis may
include the following:
• Measurement per ASTM D2122
• Visual and microscopic examination of the pipe and fracture surfaces
• Acetone immersion testing per ASTM D2152
• Heat reversion test per ASTM F1057
• Tensile testing per ASTM D638
• Izod impact testing per ASTM D256
An example of this failure assessment is shown in Figure 3-18. These tests should be
performed by a laboratory with experience testing plastic pipe. For budgeting purposes, it
is assumed that one PVC sample will be assessed every other year. The estimated cost
of each assessment is $6,000 or approximately $3,000 per year.
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Figure 3-18. Example of Plastic Pipe Failure Analysis
Asbestos Cement Condition Assessment Budget
Approximately 45% of the City’s system is asbestos cement (AC). Based on industry
research17, Appendix G summarizes how AC pipe corrodes and how that corrosion can be
measured through Energy Dispersive Spectroscopy (EDS) testing. Proactive condition
assessment of AC pipe can be expensive and disruptive to the community because the
pipe must be isolated, exposed, and a sample from the pipe must be taken. However,
when a pipe is exposed for another reason (e.g. service tap, break, valve replacement,
pipe replacement), it provides a unique opportunity to cost effectively gather EDS data
since roughly 90% of the cost of testing is in accessing the pipe.
In order to cost effectively manage aging AC pipe, the City is implementing an Opportunity
Condition Assessment Program (OCAP). As part of the valve replacement program, the
City has an experienced laboratory perform EDS testing. At the time of this report, five
samples have been tested and associated to a pipe. As documented in Appendix H, the
results of these tests have shown that four of the five pipes are in good condition and one
pipe has shown modest signs of deterioration. All five samples have at least 70% of the
design wall thickness remaining and are expected to have decades of remaining useful
life.
17 Based on Water Research Foundation Project 4480 Development of an Effective Management Strategy
for Asbestos Cement Pipe.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-27
The City should continue to perform EDS testing during valve replacement. This cost is
already embedded in the valve replacement budget. The City should also begin to collect
and test AC when other opportunities arise such as break response and service taps.
Assuming approximately 20 additional samples are collected and tested per year at a cost
of approximately $1,250 each and approximately $25,000 per year is budgeted for support
in data management, training, and decision making; the cost of the AC condition
assessment program is approximately $50,000 per year.
Metallic Pipe Condition Assessment Budget
While only 10% of the City’s system is metallic, many of these pipes are larger and more
critical transmission mains which should be managed proactively. For budgeting purposes,
it is assumed that each metallic pipe 6-inches and larger18 will be assessed once every
thirty years using non-destructive testing. For pipes 10-inches and larger, it is assumed
that a soil corrosivity assessment (shown in Figure 3-19) will be performed to support
condition assessment prioritization at a cost of $2.50 per foot.
Figure 3-19. Example of Soil Survey
For pipes 10-inches to 16-inches, it is assumed that close-interval survey (or cell-to-cell
testing in paved areas) will be used to measure the location and severity of active corrosion
(shown in Figure 3-20). This information will be used to determine whether excavation and
measurement of pipe wall thickness is warranted. Assuming on average a modest number
18 Metallic mains smaller than 6-inches make up only 0.06% of the system. They typically have a lower
consequence of failure and do not have a cost effective condition assessment technology. Therefore,
no condition assessment program is warranted.
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of excavation are triggered (shown in Figure 3-21), this work is estimated to cost
approximately $14 per foot. It is assumed that this data will be sufficient to make renewal
decisions on pipes 10-inches to 16-inches.
Figure 3-20. Example of Close-Interval Survey
Figure 3-21. Example of Targeted Excavation and Measurement of Pipe Wall
Thickness
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Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-29
For pipes 18-inches and larger that are often more critical and expensive to replace, it is
assumed that higher resolution in-pipe electromagnetic technology will be required to
make prudent and justifiable decisions (shown in Figure 3-22). This work is estimated to
cost approximately $52 per foot.
Figure 3-22. Example of In-Pipe Electromagnetic Technology
For 6-inch and 8-inch pipes, a similar high resolution technology can be employed at a
reduced cost since access may be achieved through a fire hydrant (shown in Figure 3-23).
The estimate unit cost for these pipes is approximately $15 per foot.
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Figure 3-23. Example of Small Diameter In-Pipe Electromagnetic Technology
Initial Metallic Pipe Condition Assessment Priorities
Based on break history and institutional knowledge, a preliminary list of near term metallic
pipe condition assessment projects were identified and prioritized. This is summarized in
Table 3-9. The highest priority project was identified as an 8-inch metallic pipe within the
airport. This is a relatively short pipe with a significant portion of the cost embedded in
mobilization of the contractor. If the City proceeds with this project, they should also
consider executing other high priority condition assessment projects as part of a larger
project that will use the same technology19 to obtain more value from contractor
mobilization.
19 Other high priority projects that use the same technology include project number 4 and 5.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-31
Table 3-9. Initial Metallic Pipe Condition Assessment Prioritization
Project # Description Priority Condition Assessment Type Length (ft)
1 8” Pipe in Airport Site20 1 Assessment: 8-inch and smaller 2,500
2 8” El Camino 490 Pipe 2 Assessment: 8-inch and smaller 3,000
3 20” & 24” Cannon Rd Recycled Pipe 2 Assessment: 18-inches and larger 13,500
4 24” & 27” Stl from Maerkle to El Camino 2 Assessment: 18-inches and larger 8,000
5 Parallel 18” pipes southeast of tank on Janis Way 3 Assessment: 18-inches and larger 2,000
6 Pipe Crossing Railroad & Major Roads 4 Assessment: 8-inch and smaller Unknown
7 16” Stl Cannon Rd 5 Assessment: 10-inch to 16-inch 9,000
8 27” Stl Palomar Airport Rd 5 Assessment: 18-inches and larger 6,500
9 36” CMLC Santa Fe 2 5 Assessment: 18-inches and larger 3,500
10 14” Stl Valley St. 6 Assessment: 10-inch to 16-inch 1,300
Pipeline Cathodic Protection
The primary driver for metallic pipe deterioration is corrosion. Cathodic protection can slow
corrosion and extend the useful life of pipeline infrastructure. The City has previously
budgeted approximately $1 million dollars for development and implementation of a
cathodic protection program. It is assumed that this budget will be spent over the next five
years and that approximately $50,000 per year will be required to maintain the cathodic
protection system after the first five years based on cathodic protection maintenance
contracts for similar utilities.
Valve Replacement
While the City’s pipeline infrastructure on average is expected to last well over one-
hundred years, the City’s valves will occasionally fail. These failures may include leakage,
inoperability, and the inability to perform their primary function of isolating flow. This
function is important to limit the consequence of system failures and support operation and
maintenance of the system. Recently, the City has budgeted approximately $1 million for
valve replacement. This investment has been able to stabilize the backlog of known
inoperable valves. Since valve replacement is less efficient than pipe replacement (which
includes replacing adjacent valves, services, and other appurtenances creating
opportunities for efficiency), it is ideal to limit valve replacement to inoperable valves and
adjacent high priority valves. With this in mind, it is recommended that the valve
replacement budget be continued in the near term and periodically reevaluated to verify
20 Length unknown; Consider potential future airport improvements.
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3-32 | June 2019
these investment levels enable the City to sustain a manageable backlog of inoperable
valves.
3.2.3 Recommended Investment Levels
Figure 3-24 shows the cumulative annual investment need over the next 50 years by
investment type without inflation:
• Replacement – Pipe replacement due to condition and performance issues. During
replacement, adjacent valves, services, and other appurtenances will also be
replaced.
• Access – When a pipe replacement project is triggered, the cost to address
additional access issues in a single project.
• Valves – The cost to replace critical inoperable valves when the adjacent pipe has
significant remaining useful life.
• Cathodic Protection – The cost to develop and maintain cathodic protection
systems to extend the life of metallic pipe.
• Condition Assessment – The cost to perform non-destructive condition
assessment and ensure the right pipes are replaced at the right time.
Table 3-10 shows the summary performance-based forecast over the next 50 years
compared to the age-based forecast without inflation. Figure 3-24 and Table 3-10 show
that the City will save approximately $665 million dollars without inflation in unnecessary
pipe replacement (an average of $13.3 million per year over 50 years) by moving to a
performance-based program. Appendix J includes a table of the results presented in
Figure 3-24.
Table 3-10. Renewal Forecast Comparison
Forecast Timeframe
Cost without
Inflation (Million) Cost with Inflation (Million)
Age-based FY19/20-FY69/70 $1,055.0 $2,229.0
Performance-based FY19/20-FY69/70 $389.2 $807.3
Savings $665.8 $1,421.7
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Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-35
Table 3-11. CIP Forecast for Potable & Recycled Water Pipelines, Valves and Service Laterals
CIP
Project
ID System Project Title
Year 1
2019-20
Year 2
2020-21
Year 3
2021-22
Year 4
2022-23
Year 5
2023-24
Year 6-10
2025-29
Year 11-15
2030-34
39041 and 50351
Potable Identified Pipeline Replacement & Access Issue Resolution
$2,320,000 $2,530,000 $2,730,000 $640,000 $0 $0 $0
39041 and 50351
Potable Miscellaneous Pipeline Replacement & Access Issue Resolution
$0 $0 $0 $2,050,000 $2,800,000 $17,390,000 $23,580,000
50191 Potable Miscellaneous Valve Repair & Replacement
$890,000 $910,000 $930,000 $940,000 $960,000 $5,110,000 $5,650,000
50071 Potable Cathodic Protection Program $180,000 $180,000 $190,000 $190,000 $190,000 $260,000 $280,000
50511 Potable Condition Assessment $390,000 $400,000 $410,000 $410,000 $420,000 $2,250,000 $2,480,000
New Recycled Miscellaneous Pipeline Replacement
$0 $0 $0 $250,000 $350,000 $2,150,000 $2,910,000
52121 Recycled Miscellaneous Valve Repair & Replacement
$110,000 $110,000 $110,000 $120,000 $120,000 $630,000 $700,000
New Recycled Cathodic Protection Program $20,000 $20,000 $20,000 $20,000 $20,000 $30,000 $30,000
52111 Recycled Condition Assessment $50,000 $50,000 $50,000 $50,000 $50,000 $280,000 $310,000
Notes:
Includes 2% inflation
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-37
The 15-year CIP forecast for CIP Project ID 50241 Reservoir Repair and Maintenance
Program is presented in Table 3-12. This forecast includes costs for “Washout, painting,
exterior/interior coating” as identified in the reservoir maintenance schedule presented in
Table 3-13. Washout, painting, exterior/interior coating is assumed to be required every
10 years. Costs for other activities in the reservoir maintenance schedule are addressed
through different budgets.
Table 3-12. Reservoir Repair and Maintenance CIP
Project Title
Year 1
2019-20
Year 2
2020-21
Year 3
2021-22
Year 4
2022-23
Year 5
2023-24
Year 6-10
2025-29
Year 11-15
2030-34
RESERVOIR REPAIR
AND MAINTENANCE
PROGRAM1
$0 $0 $0 $0 $2,958,829 $3,068,428 $3,606,796
Notes:
1 Costs are based on bids received by the City for Tanks C, D1, D2, D3, Elm, Ellery, and Skyline. Calculated costs use Tank C and D3 cost per million gallons of storage. Costs include 2% inflation.
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June 2019 | 3-39
Table 3-13.Reservoir Maintenance Schedule and Costs
Tank Year 0 Year 1 Year 2 Year 3 Year 4 Year 5 YEAR3 6-10 YEAR3 11-16 Bid
Year Bid Costs2 Calculated
Cost1,2 FY 2018/19 FY 2019/20 FY 2020/21 FY 2021/22 FY 2022/23 FY 2024/25 FY 2025-29 FY 2030-34
C Washout, painting, exterior/interior coating Warranty & Periodic inspection & repairs
Washout, periodic inspection & repairs Warranty & periodic inspection & repairs
Washout, periodic inspection & repairs Warranty & periodic inspection & repairs
Washout, painting, exterior/interior coating
2018 $1,324,831
1.5 MG
D3 Washout, painting, exterior/interior coating Warranty & Periodic inspection & repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection Washout, periodic inspection & repairs Washout, painting, exterior/interior coating
8.5 MG
D1 Washout, periodic inspection & repairs Warranty & periodic inspection / repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection Washout, painting, exterior/interior coating Washout, painting, exterior/interior coating
2012 $667,718
1.25 MG
D2 Washout, periodic inspection & repairs Warranty & periodic inspection / repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection
Assumed for Washout, painting, exterior/interior coating based on 2012/2013 project
Washout, painting, exterior/interior coating
1.25 MG
Ellery Sanitary/Safety Inspection Washout, periodic inspection & repairs Warranty & Periodic inspection & repairs
Sanitary/Safety Inspection Sanitary/Safety Inspection
Assumed for Washout, painting, exterior/interior coating based on 2014 project
Washout, painting, exterior/interior coating
2014 $1,060,380
5.0 MG
Elm Sanitary/Safety Inspection Washout, periodic inspection & repairs Warranty & Periodic inspection & repairs
Sanitary/Safety Inspection Sanitary/Safety Inspection
Assumed for Washout, painting, exterior/interior coating based on 2014 project
Washout, painting, exterior/interior coating
1.5 MG
Skyline
1.5 MG
Washout, periodic inspection & repairs Warranty & Periodic inspection & repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection Washout, painting, exterior/interior coating
Washout, painting, exterior/interior coating
La Costa Hi Washout, periodic inspection & repairs Warranty & Periodic inspection & repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection Washout, painting, exterior/interior coating
Washout, painting, exterior/interior coating
$794,899
6.0 MG
Santa Fe II
9.0 MG
Washout, painting, exterior/interior coating Warranty & Periodic inspection & repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection Washout, periodic inspection & repairs Washout, painting, exterior/interior coating
$1,192,348
TAP Washout, periodic inspection & repairs Warranty & Periodic inspection & repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection Washout, periodic inspection & repairs Washout, painting, exterior/interior coating
$794,899
6.0 MG
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3-40 | June 2019
Table 3-13.Reservoir Maintenance Schedule and Costs
Tank Year 0 Year 1 Year 2 Year 3 Year 4 Year 5 YEAR3 6-10 YEAR3 11-16 Bid
Year Bid Costs2 Calculated
Cost1,2 FY 2018/19 FY 2019/20 FY 2020/21 FY 2021/22 FY 2022/23 FY 2024/25 FY 2025-29 FY 2030-34
MKL Washout, periodic inspection & repairs Warranty & Periodic inspection & repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection Washout, periodic inspection & repairs Washout, painting, exterior/interior coating
$1,324,831
10.0 MG
MKL Cover, Periodic inspection & repairs Warranty & Periodic inspection & repairs Sanitary/Safety Inspection Sanitary/Safety Inspection Sanitary/Safety Inspection Washout, periodic inspection & repairs
Already Included in CIP
200 MG
Notes: 1 Calculated costs use Tank C and D3 cost per million gallons of storage.
2 Bid Costs and Calculated Costs are for activities identified as "Washout, painting, exterior/interior coating" in the schedule.
3 Year 6-10 and Year 11-15 assume that “Washout, painting, exterior/interior coating” is required every 10 years.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 | 3-41
3.4 Condition and Capacity CIP Project Prioritization
All current CIP projects, proposed hydraulic projects, and proposed condition projects were
evaluated to coordinate investments and ensure there is no overlap. For example, low risk
fire flow constraints typically aren’t included in a near term investment project. However,
since a replacement program is already recommended for Adams Street where a fire flow
issue exists, the project was refined to address the condition, fire flow, and difficult to
access area simultaneously to minimize community disruption and cost effectively address
lower priority issues.
3.5 Opportunities
Throughout development of the Asset Management Master Plan, the Asset Management
Team identified potential opportunities for continuous improvement to the asset
management program. The City should consider these opportunities when developing an
Asset Management Roadmap that clearly communicates to stakeholders the prioritized
initiatives and a schedule for implementation. The below includes a list of these
opportunities for water:
• Develop guidelines to establish when inaccessible infrastructure should be
addressed and what potential alternatives exist. A significant portion of
inaccessible City water mains traverse through business, condominium, and
apartment complexes and are not accessible via a public or private road. Water
mains often run under walkways, near community pools, between buildings, and
under overhangs. Determine if ownership transfer is a viable alternative when
determining how to address inaccessible infrastructure.
• The primary driver for metallic pipe deterioration is corrosion. Cathodic protection
can slow corrosion and extend the useful life of pipeline infrastructure. Develop,
implement, and maintain a cost effective cathodic protection system.
• On an annual basis, review break history to identify clusters of main breaks that
may warrant a future pipeline replacement project.
• Refine the way inoperable valves are identified to ensure a single database of
record exists for all known inoperable valves.
• Develop and implement a valve risk model to identify and prioritize valve
replacement. Develop guidelines on how to use this model to generate valve
replacement projects.
• Continue to collect, test, and analyze AC pipe samples during valve and pipe
replacement projects.
• Currently, the City is sampling and testing AC pipes during contracted valve
replacement work. Readily available samples were evaluated as part of this study.
Continue to develop and execute an opportunity condition assessment program to
collect, test, and analyze AC pipe samples when other opportunities arise (e.g.
service tapping and break response).
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• Develop a tactical metallic pipe condition assessment program to identify and
prioritize condition assessment projects, manage project execution, and leverage
the data collected to make renewal decisions. The program should leverage and
refine the initial condition assessment strategies and priorities identified in this
Asset Management Master Plan.
• Refine the current water main COF assessment approach to quantify the number
of customers, type of customers, and flow not delivered if a particular pipe fails.
Leverage this information for both pipe and valve replacement prioritization.
• Continue to perform proactive leak detection on a regular basis such as once every
three to five years.
• Consider opportunities to develop the computerized maintenance management
system.
• Update the AMP annually with significant changes or modifications to the program.
3.6 Asset Valuation
The total asset replacement valuation for potable water is $1.29 billion and for recycled
water is $297 million. The replacement costs are summarized in Table 1-1. This valuation
is based on data that is readily available such as GIS data, financial records, maintenance
and repair records, and replacement and renewal records. The City currently utilizes an
Original Cost Less Depreciation valuation approach. Where performance-based forecasts
were not developed, age is the basis for the straight-line depreciation calculations using
estimated useful life by asset classes to estimate the asset service life and estimated
replacement costs. Assets were "bundled" into one facility asset or group of facility assets,
such as water reservoir or pump station mechanical, and the total construction cost of the
asset value and the useful life for the facility were applied.
The asset valuation details including useful life assumptions and long-term funding
forecasts by year are included in Appendix D.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix A. Defect Codes and Scores
Appendix A includes the CUES CCTV defect codes, associated scores, and the
rehabilitation method used in InfoMaster.
Defect Code
Default
Score Type Description Rehab. Method
AbnSurvey 0 MISCELLANEOUS Abandoned Survey
Broken 50 STRUCTURAL Broken TRENCHLESS REPAIR
BrokenH 50 STRUCTURAL BrokenHole TRENCHLESS REPAIR
BrokenSVM 60 STRUCTURAL BrokenSoil Visible - Medium TRENCHLESS REPAIR
BrokenSVS 60 STRUCTURAL BrokenVoid Visible - Small TRENCHLESS REPAIR
CAF 0 MISCELLANEOUS CONT. AGAINST FLOW
Cavity 60 STRUCTURAL Cavity TRENCHLESS REPAIR
CavityL 60 STRUCTURAL CavityLarge OPEN CUT POINT REPAIR
CavityM 60 STRUCTURAL CavityMedium TRENCHLESS REPAIR
CavityS 50 STRUCTURAL CavitySmall TRENCHLESS REPAIR
Cleanout 0 CONSTRUCTION Cleanout
CollapseM 60 STRUCTURAL CollapsedMedium OPEN CUT POINT REPAIR
CollapseS 50 STRUCTURAL CollapsedSmall OPEN CUT POINT REPAIR
Crack 50 STRUCTURAL Crack TRENCHLESS REPAIR
CrackCN 5 STRUCTURAL CrackCircular - Narrow
CrackCW 30 STRUCTURAL CrackCircular - Wider TRENCHLESS REPAIR
CrackLN 5 STRUCTURAL CrackLongitudinal - Narrow
CrackLW 30 STRUCTURAL CrackLongitudinal - Wider TRENCHLESS REPAIR
CrackMN 20 STRUCTURAL CrackMultiple - Narrow TRENCHLESS REPAIR
CrackMW 50 STRUCTURAL CrackMultiple - Wider TRENCHLESS REPAIR
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Defect Code
Default
Score Type Description Rehab. Method
CrackRoots 50 STRUCTURAL Crack with Roots TRENCHLESS REPAIR
CrackSN 20 STRUCTURAL CrackSpiral - Narrow TRENCHLESS REPAIR
CrackSW 30 STRUCTURAL CrackSpiral - Wider TRENCHLESS REPAIR
CUW 0 STRUCTURAL Camera Under Water
Debris 0 SERVICE Debris
Debris10 0 SERVICE Debris<=10%
Debris20 0 SERVICE Debris<=20%
Debris30 0 SERVICE Debris<=30%
Debris31 0 SERVICE Debris>30%
Deform 60 STRUCTURAL Deformed TRENCHLESS REPAIR
Deform10 60 STRUCTURAL Deformed<=10% TRENCHLESS REPAIR
Deform11 50 STRUCTURAL Deformed>10% OPEN CUT POINT REPAIR
DepositsL 0 SERVICE DepositsLight
DepositsM 0 SERVICE DepositsMedium
DepositsS 0 SERVICE DepositsSevere
EndOfPipe 0 MISCELLANEOUS End of Pipe
FH 0 MISCELLANEOUS FH
Flattened 1 STRUCTURAL Flattened
FlattenedL 1 STRUCTURAL FlattenedLight
FlattenedM 1 STRUCTURAL FlattenedMedium
GO 0 MISCELLANEOUS GO
GreaseL 0 SERVICE GreaseLight
GreaseM 0 SERVICE GreaseMedium
GreaseS 0 SERVICE GreaseSevere
Infiltrat 50 STRUCTURAL Infiltration TRENCHLESS REPAIR
InfiltratL 1 STRUCTURAL InfiltrationLight
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Defect Code
Default
Score Type Description Rehab. Method
InfiltratM 30 STRUCTURAL InfiltrationMedium TRENCHLESS REPAIR
InfiltratS 50 STRUCTURAL InfiltrationSevere TRENCHLESS REPAIR
IntrSelRng 0 SERVICE Intruding Sealing Ring
JAngular 10 STRUCTURAL Joint - Angular
JAngularL 10 STRUCTURAL Joint - AngularLarge
JAngularM 5 STRUCTURAL Joint - AngularMedium
JAngularS 1 STRUCTURAL Joint - AngularSmall
JGasketLte 1 STRUCTURAL Joint - GasketLight
JGasketM 20 STRUCTURAL Joint - GasketMedium OPEN CUT POINT REPAIR
JGasketSev 60 STRUCTURAL Joint - GasketSevere OPEN CUT POINT REPAIR
JOffset 20 STRUCTURAL Joint Offset OPEN CUT POINT REPAIR
JOffsetL 60 STRUCTURAL Joint OffsetLarge OPEN CUT POINT REPAIR
JOffsetM 20 STRUCTURAL Joint OffsetMedium OPEN CUT POINT REPAIR
JOffsetS 10 STRUCTURAL Joint OffsetSmall
JSepL 60 STRUCTURAL Joint - SeparatedLarge TRENCHLESS REPAIR
JSepM 20 STRUCTURAL Joint - SeparatedMedium TRENCHLESS REPAIR
JSepS 10 STRUCTURAL Joint - SeparatedSmall
LatAbnUnsl 1 STRUCTURAL Lateral Abandoned - Unsealed
LatConPr 1 STRUCTURAL Lateral Connection Problem
LatConPrBl 1 STRUCTURAL Lateral Connection ProblemLateral Blocked
LatConPrFD 1 STRUCTURAL Lateral Connection ProblemFactory Defective Pipe
LatConPrPD 1 STRUCTURAL Lateral Connection ProblemConnection Pipe Damaged
LatConPrPr 30 STRUCTURAL Lateral Connection ProblemConnection Protruding ROBOTIC CUTTER
Lateral 0 CONSTRUCTION Lateral
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Defect Code
Default
Score Type Description Rehab. Method
LateralCap 0 CONSTRUCTION LateralCapped
LatLiveCon 0 MISCELLANEOUS LateralLive Connection
LinFailBLn 50 STRUCTURAL Lining FailureBlistered lining REPLACE
LinFailDet 60 STRUCTURAL Lining FailureDetached REPLACE
LiningFail 50 STRUCTURAL Lining Failure REPLACE
Pipe Size 0 MISCELLANEOUS Pipe Size
Pipe Type 0 MISCELLANEOUS Pipe Type
PipeContin 0 MISCELLANEOUS Pipe Continue
Root 5 STRUCTURAL Root TRENCHLESS REPAIR
RootHeavy 10 STRUCTURAL RootHeavy TRENCHLESS REPAIR
RootInJnt 10 STRUCTURAL Root-in-Joint TRENCHLESS REPAIR
RootInJntH 10 STRUCTURAL Root-in-JointHeavy TRENCHLESS REPAIR
RootInJntL 1 STRUCTURAL Root-in-JointLight TRENCHLESS REPAIR
RootInJntM 5 STRUCTURAL Root-in-JointMedium TRENCHLESS REPAIR
RootInLat 5 STRUCTURAL Root-in-Lateral TRENCHLESS REPAIR
RootInLatH 10 STRUCTURAL Root-in-LateralHeavy TRENCHLESS REPAIR
RootInLatL 1 STRUCTURAL Root-in-LateralLight TRENCHLESS REPAIR
RootInLatM 5 STRUCTURAL Root-in-LateralMedium TRENCHLESS REPAIR
RootLight 1 STRUCTURAL RootLight TRENCHLESS REPAIR
RootMedium 5 STRUCTURAL RootMedium TRENCHLESS REPAIR
Sag 30 STRUCTURAL Sag
SagLight 1 STRUCTURAL SagLight
SagMedium 30 STRUCTURAL SagMedium
SagSevere 60 STRUCTURAL SagSevere REPLACE
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Defect Code
Default
Score Type Description Rehab. Method
SDamLChemP 1 STRUCTURAL Surface DamageLight Material Damage - Chemical Pro
SDamLMechP 1 STRUCTURAL Surface DamageLight Material Damage - Mechanical P
SDamMChemP 20 STRUCTURAL Surface DamageMedium Material Damage - Chemical Pr
SDamMMechP 20 STRUCTURAL Surface DamageMedium Material Damage - Mechanical
SDamSChemP 20 STRUCTURAL Surface DamageSevere Material Damage - Chemical Pr
SDamSMechP 30 STRUCTURAL Surface DamageSevere Material Damage - Mechanical TRENCHLESS REPAIR
StartAgFlw 0 MISCELLANEOUS START AGAINST FLOW
StartWiFlw 0 MISCELLANEOUS START WITH FLOW
STOP 0 MISCELLANEOUS STOP
SurfaceDam 30 STRUCTURAL Surface Damage TRENCHLESS REPAIR
Vermin 0 MISCELLANEOUS Vermin
Vermin 0 MISCELLANEOUS VerminMice
Vermin 0 MISCELLANEOUS VerminRat
VerminCRch 0 MISCELLANEOUS VerminCockroach
WatLev 1 STRUCTURAL Water Level
WatLevGT25 1 STRUCTURAL Water Level>=25%
WatLevGT50 1 STRUCTURAL Water Level>=50%
WatLevGT75 1 STRUCTURAL Water Level>=75%
WatLevLT25 1 STRUCTURAL Water Level<25%
WatMark 1 STRUCTURAL Water Mark
WatMark50 1 STRUCTURAL Water Mark>=50%
WatMark75 1 STRUCTURAL Water Mark>=75%
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix B. InfoMaster Risk Model
Implementation Notes
Gravity Sewer Mains
Import CCTV
1) Update CCTV_Import with new conditions
a. Remove blank row of CCTV conditions table (Excel file: Main Conditions
CCTV_071118_withCrackRootsv2.xlsx)
b. Clone CCTV_Import rename CCTV_Import_Updated
c. Load IMIC_Inspections_CCTV_Import_Updated for inspection table
d. Load excel as conditions table (Excel file: Main Conditions
CCTV_071118_withCrackRootsv2.xlsx)
e. Check field mappings
f. Insert and Update (overwrite) as Import Options:
i. 0 inspections inserted
ii. 6208 inspections updated
iii. 0 inspections ignored
g. Geocode inspections
LOF/POF (Potential of Failure Rating Factors for Wastewater Gravity Mains):
1) Defects Score (Max Score) [LOF 2, LOF 11-15] :
a. Defects score shows up in InfoMaster results table Pipe
Score_CCTV_Import_Updated in the field Structural Peak Score.
b. Created individual LOFs for potential scores (60, 50, 30, 20, 10, 5) and scored
each as 10 in IM initially. Weighting is used when LOF and COF are combined
later to produce the final defect score.
2) Count of Defects [LOF 10]
a. Count group 1-4 ( Defect scores >=20) –verify with Eric
b. Loaded IMIC_Continuous_CCTV_Import_updated layer.
i. Run Defect Count Data miner tool
1. The tool exports a table used in this risk calculation. Load this
table to Arc Map to use in InfoMaster.
3) Cleaning Frequency – Updated Maintenance Failure - Cleaning Schedule 3 [LOF 6]
a. Field = Cleaning Frequency
i. 24 Month = 24M-1,24M-2
ii. 36 Month = 36M-1,36M-2
iii. 12 Month = ann , SCH
iv. 6 Month = SAN
v. 3 Month = QTY
4) Capacity – Created new LOF : Capacity (Modeled PWWD d/D) [LOF 16]
a. Fields: Pipe ID = FacilityID, CapacityDD
5) LOF to use: LOF2,LOF6, LOF 10, LOF 11, LOF 12, LOF 13, LOF 14, LOF 15, LOF 16
COF (Consequence of Failure Rating Factors for Wastewater Gravity Mains):
1) Spill Volume Potential
a. Modeled ADWF, mgd. Attribute already added into IM. Updated [COF1] with scoring
only. b. Pipe Diameter [COF 2]– updated scoring check breaks confusing in spreadsheet:
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
c. Multi Parameter - Spill Volume Potential (updated Regulatory Compliance COF)
[COF 15]:
i. Takes the max from diameter or model:
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
2) Public Health and Environmental Impact
a. COF 3- Schools, Church, Care Facility [Updated COF 3]
i. Layer: CitySchoolChurchLicensedCareFacilityParcel
ii. Query: "FacilityType" IN ('School' ,'Carlsbad-owned' )
iii. Max Distance 100,000 in order to capture all mains.
iv. Break note: <1 indicates within area
b. COF 4- [Updated COF 4] – Village View
i. Layer: VillageReviewArea – taken from the general plan GIS layers
ii. Max Distance 100,000 in order to capture all mains
iii. Break note: <1 indicates within area
c. COF 5 [Updated] Legoland
i. GIS Layer created for Legoland_HPA
ii. Max Distance 100,000 in order to capture all mains
iii. Break note: <1 indicates within area
d. COF 8 – Environmental Impact Waterways – WaterlineUSGS(Updated COF 8)
i. Layer: WaterlineUSGS
ii. I did not query any fields
iii. Max Distance 100,000 in order to capture all mains
e. COF 9- Environmental Impact Waterways – Waterbodies (Updated COF 9)
i. Layer: Waterbody
ii. Max Distance 100,000 in order to capture all mains
f. COF 16 (updated) Multi Parameter Public Health and Environmental Impact:
i. Combines COF 3 – 9 to get max value.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
3) Emergency Response Impact
a. Traffic Control COF 10 and COF 12
i. COF 10: Emergency Response Traffic Impact - Road Classification
(Local -Prime Arterial) [Updated]
Intersect Layer: RoadCenterline
Query: "ROADTYPE" IN (50, 51, 40, 30, 20, 10, 62, 60)
Buffer distance =60
-This is for the road categories below:
All Others
Local –Roadway Type =51 & 50
Collector or Secondary Arterial Roadway Type =40 & 30
Major Arterial Street or Private (access issue) Roadway Type
=20, 60, 62 Prime Arterial Roadway Type =10
ii. COF 12: Emergency Response Traffic Impact – Freeways & Rail
[Updated]
Intersect Layer: GeneralPlanLandUse
Query: "DESCRIPTION" = 'Transportation Corridor'
Buffer Distance = 60
b. COF 13 Emergency Response Maintenance/Repair Constraints - Restricted
Access (Habitat/Private)
Intersect Layer: GeneralPlanLandUse Buffer =0 Query: "DESCRIPTION" IN ('Community Facilities' ,'General
Commercial' ,'Local Shopping Center' ,'Local Shopping Center/Community
Facilities' ,'Office' ,'Open Space' ,'Planned Industrial' ,'Planned Industrial/Office'
,'Regional Commercial' ,'Residential 0-1.5 du/ac' ,'Residential 0-4 du/ac'
,'Residential 15-23 du/ac' ,'Residential 23-30 du/ac' ,'Residential 4-8 du/ac'
,'Residential 8-15 du/ac' ,'Residential 8-15 du/ac / Office' ,'Residential 8-15
du/ac/Local Shopping Center' ,'Residential 8-15 du/ac/Visitor Commercial'
,'Village', 'Visitor Commercial' ,'Visitor Commercial/Open Space' )
c. COF 14 Emergency Response Traffic Impact - Repair Constraints - Poor Access
– Easements (Updated)
Intersect
Layer: Public Works Easement
Buffer =0
Query: none
d. COF 19 Emergency Response Traffic Impact - Repair Constraints - Thick Pavement Intersect Layer: Queried Centerline for Roadway Name = ‘State Street’ GIS layer created for Thick Pavement Buffer =0 Query: none e. COF 18- Multi - Emergency Response Impact (updated) i. Combines COF 10,12,14,& 19 into 1 with Max values aggregated into single COF
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
4) Risk 1 – Base Risk Updated with the following Weights
a. Updated for Cumulative Risk (LOF + COF) Max Score = 100
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
5) Decision Logic
a. Notes:
i. Depth – Added a calculate Depth Field in the Gravity Mains layer using
GIS (Upstream Elev – Downstream Elev.). The InfoMaster interpolate tool
was used to clean up the results and remove blanks.
Manholes
LOF
1. Structural Risk Score
a. LOF 17 – Imported Table from MH condition spreadsheet -
i. Score 0-8
ii. Rating 5 = 8
iii. Rating 0 or1 =0
iv. Weighting applied when LOF and COF are combined to bring score to 80
out of 100.
b. LOF 22 – from MH condition spreadsheet - Bench Condition field
i. Good = 0 Poor = 8
c. Use Multi Parameter to pull Max Score between
d. In Risk can do x10 and get scores of 80, 40, etc.
COF
1. COF – See notes above for pipes. The same process is used.
Risk 1 – Base Risk Updated with the following Weights
Updated for Cumulative Risk (LOF + COF) Max Score = 100
i. Weight = 10 for MH condition risk.
Logic
1) Mainly Using MH Condition Table. Created a Facility Selection for step 1 of logic “if has
MH Condition”.
2) Corrosion “Severe” =”L”
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix C. Cost Factors
Sewer Cost Factors
Factor Description Replacement CIPP Open Cut Point Repair Trenchless Repair Manholes
Installation Cost Factor (Applied first)
Installation Cost Factor is based on CIPP bid tabs and addresses the costs related to items such as mobilization, fittings, excavation, bedding, backfill, traffic control, by-pass pumping, equipment, labor, pavement or non-ROW patching or improvements.
Replacement 1.60 CIPP SD 1.30 Open Cut Point Repair 1.2 Trenchless Repair 1.0 Manhole N/A
N/A N/A CIPP LD 1.60 N/A N/A N/A N/A N/A N/A
Capital Cost Factor
The capital cost factor addresses the costs related to agency administration, design, construction management, and contingencies.
Replacement (Uses the sum of the below percentages) 1.45 CIPP (Uses the sum of the below percentages) 1.45 Open Cut Point Repair (Uses the sum of the below percentages) 1.40 Trenchless Repair (Uses the sum of the below percentages) 1.37 Point Repair (Uses the sum of the below percentages) 1.37
Planning 3% Planning 3% Planning 3% Planning 3% Planning 3%
Design 10% Design 5% Design 5% Design 2% Design 2%
Legal 2% Legal 2% Legal 2% Legal 2% Legal 2%
Construction Administration 15% Construction Administration 15% Construction Administration 15% Construction Administration 15% Construction Administration 15%
Owner Administration 5% Owner Administration 5% Owner Administration 5% Owner Administration 5% Owner Administration 5%
Contingency 10% Contingency 10% Contingency 10% Contingency 10% Contingency 10%
Subtotal Capital Cost Factor 45% Subtotal 40% Subtotal 40% Subtotal 37% Subtotal 37%
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Sewer Cost Tables
Assumptions
Cost per inch diameter per LF
(Z in Unit Cost Table Below) Unit cost notes
Replacement SD $11.90 Note: Bid tab prices are approximately $29/In-Dia/LF for 8" dia pipe for limited quantities. Carlsbad 2012 MP costs escalated to 2018 are $11.90/In-Dia/LF for >3000 LF quantities. $11.90/In-Dia/LF is assumed.
Replacement LD $20.00
CIPP SD 12 inch $4.00 Based on bid tab PWS-17-34
CIPP LD $4.75 $4.75 aligns with LD bid tab for 36-inch pipe CIPP project from City of Vista
Historical Inflation Tables
Assumed Historical Inflation 1.75% RS Means National Average
Years of Inflation 3 2016 to 2019
Sewer Manholes A B C = A x B
Description Construction Cost Capital Cost Factor Capital Costs Units
Manhole Replacement $10,529 1.37 $14,425 Each
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Sewer Unit Costs Y
A = Z (from cost table above) x
Y B C = A x B F G = F x E H
Renewal Action Diameter
Material Cost per LF or Point
Repair Installation Factor
Construction Cost (No MHs) / LF or Point Repair [Used to
check against bid tabs] Capital Cost Factor Capital Costs Units
Replace SD 0 $100 1.60 $16 1.45 $232 Linear Foot
Replace SD 3 $100 1.60 $160 1.45 $232 Linear Foot
Replace SD 4 $100 1.60 $160 1.45 $232 Linear Foot
Replace SD 6 $100 1.60 $160 1.45 $232 Linear Foot
Replace SD 8 $100 1.60 $160 1.45 $232 Linear Foot
Replace SD 10 $125 1.60 $200 1.45 $290 Linear Foot
Replace SD 12 $150 1.60 $240 1.45 $349 Linear Foot
Replace LD 14 $176 1.60 $280 1.45 $407 Linear Foot
Replace LD 15 $188 1.60 $301 1.45 $436 Linear Foot
Replace LD 16 $201 1.60 $321 1.45 $465 Linear Foot
Replace LD 18 $226 1.60 $361 1.45 $523 Linear Foot
Replace LD 20 $251 1.60 $401 1.45 $581 Linear Foot
Replace LD 21 $263 1.60 $421 1.45 $610 Linear Foot
Replace LD 24 $301 1.60 $481 1.45 $697 Linear Foot
Replace LD 27 $338 1.60 $541 1.45 $784 Linear Foot
Replace LD 30 $376 1.60 $601 1.45 $871 Linear Foot
Replace LD 33 $414 1.60 $661 1.45 $959 Linear Foot
Replace LD 36 $451 1.60 $721 1.45 $1,046 Linear Foot
Replace LD 39 $489 1.60 $781 1.45 $1,133 Linear Foot
Replace LD 42 $527 1.60 $841 1.45 $1,220 Linear Foot
Replace LD 48 $602 1.60 $962 1.45 $1,394 Linear Foot
Replace LD 54 $677 1.60 $1,082 1.45 $1,569 Linear Foot
Replace LD 60 $752 1.60 $1,202 1.45 $1,743 Linear Foot
CIPP SD 0 $34 1.30 $44 1.45 $64 Linear Foot
CIPP SD 3 $27 1.30 $36 1.45 $52 Linear Foot
CIPP SD 4 $27 1.30 $36 1.45 $52 Linear Foot
CIPP SD 6 $27 1.30 $36 1.45 $52 Linear Foot
CIPP SD 8 $34 1.30 $44 1.45 $64 Linear Foot
CIPP SD 10 $38 1.30 $49 1.45 $71 Linear Foot
CIPP SD 12 $51 1.30 $66 1.45 $95 Linear Foot
CIPP LD 14 $59 1.30 $77 1.45 $111 Linear Foot
CIPP LD 15 $63 1.60 $101 1.45 $146 Linear Foot
CIPP LD 16 $67 1.60 $108 1.45 $156 Linear Foot
CIPP LD 18 $76 1.60 $121 1.45 $176 Linear Foot
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Sewer Unit Costs Y
A = Z (from cost table above) x
Y B C = A x B F G = F x E H
Renewal Action Diameter
Material Cost per LF or Point
Repair Installation Factor
Construction Cost (No MHs) / LF or Point Repair [Used to
check against bid tabs] Capital Cost Factor Capital Costs Units
CIPP LD 20 $84 1.60 $135 1.45 $195 Linear Foot
CIPP LD 21 $88 1.60 $141 1.45 $205 Linear Foot
CIPP LD 24 $101 1.60 $162 1.45 $234 Linear Foot
CIPP LD 27 $114 1.60 $182 1.45 $264 Linear Foot
CIPP LD 30 $126 1.60 $202 1.45 $293 Linear Foot
CIPP LD 33 $139 1.60 $222 1.45 $322 Linear Foot
CIPP LD 36 $152 1.60 $242 1.45 $352 Linear Foot
CIPP LD 39 $164 1.60 $263 1.45 $381 Linear Foot
CIPP LD 42 $177 1.60 $283 1.45 $410 Linear Foot
CIPP LD 48 $202 1.60 $323 1.45 $469 Linear Foot
CIPP LD 54 $228 1.60 $364 1.45 $527 Linear Foot
CIPP LD 60 $253 1.60 $404 1.45 $586 Linear Foot
Open Cut Point Repair SD 0 $1,534 1.20 $1,841 1.40 $2,577 Linear Foot
Open Cut Point Repair SD 3 $1,534 1.20 $1,841 1.40 $2,577 Linear Foot
Open Cut Point Repair SD 4 $1,534 1.20 $1,841 1.40 $2,577 Linear Foot
Open Cut Point Repair SD 6 $1,534 1.20 $1,841 1.40 $2,577 Linear Foot
Open Cut Point Repair SD 8 $1,534 1.20 $1,841 1.40 $2,577 Linear Foot
Open Cut Point Repair SD 10 $1,700.00 1.20 $2,040 1.40 $2,856 Linear Foot
Open Cut Point Repair SD 12 $1,900.00 1.20 $2,280 1.40 $3,192 Linear Foot
Open Cut Point Repair LD 14 $2,200.00 1.20 $2,640 1.40 $3,696 Linear Foot
Open Cut Point Repair LD 15 $2,500.00 1.20 $3,000 1.40 $4,200 Linear Foot
Open Cut Point Repair LD 16 $2,800.00 1.20 $3,360 1.40 $4,704 Linear Foot
Open Cut Point Repair LD 18 $3,200.00 1.20 $3,840 1.40 $5,376 Linear Foot
Open Cut Point Repair LD 20 $3,600.00 1.20 $4,320 1.40 $6,048 Linear Foot
Open Cut Point Repair LD 21 $3,800.00 1.20 $4,560 1.40 $6,384 Linear Foot
Open Cut Point Repair LD 24 $4,200.00 1.20 $5,040 1.40 $7,056 Linear Foot
Open Cut Point Repair LD 27 $4,600.00 1.20 $5,520 1.40 $7,728 Linear Foot
Open Cut Point Repair LD 30 $5,000.00 1.20 $6,000 1.40 $8,400 Linear Foot
Open Cut Point Repair LD 33 $5,400.00 1.20 $6,480 1.40 $9,072 Linear Foot
Open Cut Point Repair LD 36 $5,400.00 1.20 $6,480 1.40 $9,072 Linear Foot
Open Cut Point Repair LD 39 $5,800.00 1.20 $6,960 1.40 $9,744 Linear Foot
Open Cut Point Repair LD 42 $5,800.00 1.20 $6,960 1.40 $9,744 Linear Foot
Open Cut Point Repair LD 48 $6,200.00 1.20 $7,440 1.40 $10,416 Linear Foot
Open Cut Point Repair LD 54 $6,600.00 1.20 $7,920 1.40 $11,088 Linear Foot
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Sewer Unit Costs Y
A = Z (from cost table above) x
Y B C = A x B F G = F x E H
Renewal Action Diameter
Material Cost per LF or Point
Repair Installation Factor
Construction Cost (No MHs) / LF or Point Repair [Used to
check against bid tabs] Capital Cost Factor Capital Costs Units
Open Cut Point Repair LD 60 $7,000.00 1.20 $8,400 1.40 $11,760 Linear Foot
Open Cut Point Repair SD Cost Review 0
Open Cut Point Repair Cost Review = Open Cut Point Repair Unit Cost per LF * 1.5 open cut point repairs per pipe / 210 average pipe length from Manhole to Manhole
$147 Linear Foot
Open Cut Point Repair SD Cost Review 3 $147 Linear Foot
Open Cut Point Repair SD Cost Review 4 $147 Linear Foot
Open Cut Point Repair SD Cost Review 6 $147 Linear Foot
Open Cut Point Repair SD Cost Review 8 $147 Linear Foot
Open Cut Point Repair SD Cost Review 10 $163 Linear Foot
Open Cut Point Repair SD Cost Review 12 $182 Linear Foot
Open Cut Point Repair LD Cost Review 14 $211 Linear Foot
Open Cut Point Repair LD Cost Review 15 $240 Linear Foot
Open Cut Point Repair LD Cost Review 16 $269 Linear Foot
Open Cut Point Repair LD Cost Review 18 $307 Linear Foot
Open Cut Point Repair LD Cost Review 20 $346 Linear Foot
Open Cut Point Repair LD Cost Review 21 $365 Linear Foot
Open Cut Point Repair LD Cost Review 24 $403 Linear Foot
Open Cut Point Repair LD Cost Review 27 $442 Linear Foot
Open Cut Point Repair LD Cost Review 30 $480 Linear Foot
Open Cut Point Repair LD Cost Review 33 $518 Linear Foot
Open Cut Point Repair LD Cost Review 36 $518 Linear Foot
Open Cut Point Repair LD Cost Review 39 $557 Linear Foot
Open Cut Point Repair LD Cost Review 42 $557 Linear Foot
Open Cut Point Repair LD Cost Review 48 $595 Linear Foot
Open Cut Point Repair LD Cost Review 54 $634 Linear Foot
Open Cut Point Repair LD Cost Review 60 $672 Linear Foot
Point Repair and CIPP SD 0
Point Repair + CIPP = CIPP unit cost per LF + (Open Cut Point Repair Cost * 1 Open Cut Point Repair per Pipe / 210 feet average sewer Manhole to Manhole length)
$162 Linear Foot
Point Repair and CIPP SD 3 $150 Linear Foot
Point Repair and CIPP SD 4 $150 Linear Foot
Point Repair and CIPP SD 6 $150 Linear Foot
Point Repair and CIPP SD 8 $162 Linear Foot
Point Repair and CIPP SD 10 $180 Linear Foot
Point Repair and CIPP SD 12 $217 Linear Foot
Point Repair and CIPP LD 14 $252 Linear Foot
Point Repair and CIPP LD 15 $306 Linear Foot
Point Repair and CIPP LD 16 $335 Linear Foot
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Sewer Unit Costs Y
A = Z (from cost table above) x
Y B C = A x B F G = F x E H
Renewal Action Diameter
Material Cost per LF or Point
Repair Installation Factor
Construction Cost (No MHs) / LF or Point Repair [Used to
check against bid tabs] Capital Cost Factor Capital Costs Units
Point Repair and CIPP LD 18 $381 Linear Foot
Point Repair and CIPP LD 20 $426 Linear Foot
Point Repair and CIPP LD 21 $448 Linear Foot
Point Repair and CIPP LD 24 $503 Linear Foot
Point Repair and CIPP LD 27 $558 Linear Foot
Point Repair and CIPP LD 30 $613 Linear Foot
Point Repair and CIPP LD 33 $668 Linear Foot
Point Repair and CIPP LD 36 $697 Linear Foot
Point Repair and CIPP LD 39 $752 Linear Foot
Point Repair and CIPP LD 42 $781 Linear Foot
Point Repair and CIPP LD 48 $865 Linear Foot
Point Repair and CIPP LD 54 $950 Linear Foot
Point Repair and CIPP LD 60 $1,034 Linear Foot
Trenchless Repair SD 0
Costs per discussion with Carlsbad
$2,500 Each
Trenchless Repair SD 4 $2,500 Each
Trenchless Repair SD 6 $2,500 Each
Trenchless Repair SD 8 $2,500 Each
Trenchless Repair SD 10 $2,500 Each
Trenchless Repair SD 12 $2,500 Each
Cut Tap or Obstacle 0
Costs per discussion with Carlsbad
$500 Each
Cut Tap or Obstacle 4 $500 Each
Cut Tap or Obstacle 6 $500 Each
Cut Tap or Obstacle 8 $500 Each
Cut Tap or Obstacle 10 $500 Each
Cut Tap or Obstacle 12 $500 Each
Cut Tap or Obstacle 14 $500 Each
Cut Tap or Obstacle 15 $500 Each
Cut Tap or Obstacle 16 $500 Each
Cut Tap or Obstacle 18 $500 Each
Cut Tap or Obstacle 20 $500 Each
Cut Tap or Obstacle 21 $500 Each
Cut Tap or Obstacle 24 $500 Each
Cut Tap or Obstacle 27 $500 Each
Cut Tap or Obstacle 30 $500 Each
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Sewer Unit Costs Y
A = Z (from cost table above) x
Y B C = A x B F G = F x E H
Renewal Action Diameter
Material Cost per LF or Point
Repair Installation Factor
Construction Cost (No MHs) / LF or Point Repair [Used to
check against bid tabs] Capital Cost Factor Capital Costs Units
Cut Tap or Obstacle 33 $500 Each
Cut Tap or Obstacle 36 $500 Each
Cut Tap or Obstacle 39 $500 Each
Cut Tap or Obstacle 42 $500 Each
Cut Tap or Obstacle 48 $500 Each
Cut Tap or Obstacle 54 $500 Each
Cut Tap or Obstacle 60 $500 Each
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Force Main Replacement Unit Costs
Diameter (inches) Unit Cost ($/ft)
With Capital Cost Factor of 45% (Planning, Legal,
Design, Construction Admin, Construction
Management, Contingency in $/ft)
2 $326.70 $473.72
2.5 $326.70 $473.72
3 $326.70 $473.72
4 $326.70 $473.72
6 $326.70 $473.72
8 $355.11 $514.91
10 $397.73 $576.70
12 $426.14 $617.90
14 $497.16 $720.88
15 $532.67 $772.37
16 $568.18 $823.86
18 $596.59 $865.06
20 $667.61 $968.04
21 $731.63 $1,060.86
24 $795.45 $1,153.41
27 $894.89 $1,297.59
30 $994.32 $1,441.76
33 $1,093.75 $1,585.94
36 $1,193.18 $1,730.11
42 $1,392.05 $2,018.47
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Water Main and Recycled Water Main Replacement Unit
Costs (Including Services and Valves)
Main Diameter
(inches) Unit Cost ($/ft)
With Capital Cost Factor of 45% (Planning, Legal,
Design, Construction Admin, Construction
Management, Contingency in $/ft)
2 $326.70 $473.72
2.5 $326.70 $473.72
3 $326.70 $473.72
4 $326.70 $473.72
6 $326.70 $473.72
8 $355.11 $514.91
10 $397.73 $576.70
12 $426.14 $617.90
14 $497.16 $720.88
15 $532.67 $772.37
16 $568.18 $823.86
18 $596.59 $865.06
20 $667.61 $968.04
21 $731.63 $1,060.86
24 $795.45 $1,153.41
27 $894.89 $1,297.59
30 $994.32 $1,441.76
33 $1,093.75 $1,585.94
36 $1,193.18 $1,730.11
42 $1,392.05 $2,018.47
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Sewer CCTV and Cleaning Unit Costs
Diameter
(inches)
CCTV Unit Cost
(per linear foot)
Cleaning Unit Cost
(per linear foot) Total
4 $1.80 $1.50 $3.30
6 $1.80 $1.50 $3.30
7 $1.80 $1.50 $3.30
8 $1.80 $1.50 $3.30
10 $1.80 $1.60 $3.40
12 $1.80 $1.90 $3.70
14 $1.80 $2.30 $4.10
15 $1.80 $2.30 $4.10
16 $1.80 $2.30 $4.10
18 $1.90 $2.80 $4.70
19 $1.90 $2.80 $4.70
20 $1.90 $2.80 $4.70
21 $1.90 $2.80 $4.70
24 $3.00 $6.00 $9.00
25 $3.00 $6.00 $9.00
26 $3.00 $6.00 $9.00
27 $3.00 $6.00 $9.00
28 $3.00 $6.00 $9.00
29 $3.00 $6.00 $9.00
30 $3.00 $6.00 $9.00
33 $3.80 $7.50 $11.30
34 $3.80 $7.50 $11.30
35 $3.80 $7.50 $11.30
36 $3.80 $7.50 $11.30
39 $6.00 $13.50 $19.50
42 $6.00 $13.50 $19.50
48 $6.00 $13.50 $19.50
54 $7.50 $18.00 $25.50
60 $10.50 $22.50 $33.00
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June 2019 |
Appendix D. Asset Valuation and Replacement
Costs
Included in the tables below are age-based costs forecasts for each infrastructure type
including summaries for use in financial analyses. In addition, replacement cost details
and the useful life information used to determine the age-based forecasts for force mains,
pump stations, and reservoirs are included below. Inflation is assumed to be 2% in the
summary tables.
Asset Valuation
Small Diameter Gravity Sewer Mains (12-inch diameter and smaller) Cost Forecast
Summary
Description
Condition-
based
(Million)
Condition-
based with
Inflation
(Million)
Age-
based
(Million)
Age-based
with
Inflation
(Million) Notes
5-year (FY19/20-FY23/24) $6.0 $6.2 $3.5 $3.6
7-year (FY19/20-FY25/26) $8.5 $9.0 $3.5 $3.7 Assumes risk scores increase by 10 and a 9% increase is applied to account for pipes that will be inspected for this first time.
22-year (FY19/20-FY40/41) N/A N/A $46.5 $56.1
30-year (FY19/20-FY48/49) N/A N/A $74.9 $97.4
40-year (FY19/20-FY58/59) N/A N/A $111.7 $159.8
Large Diameter Gravity Sewer Mains (Greater than 12-inch diameter) Cost Forecast
Summary
Description
Condition-based
(Million)
Condition-based
with Inflation
(Million)
Age-based
(Million)
Age-based
with Inflation
(Million)
5-year (FY19/20-FY23/24) $0.0 $0.0 $9.3 $9.6
7-year (FY19/20-FY25/26) $0.0 $0.0 $9.3 $9.8
22-year (FY19/20-FY40/41) N/A N/A $30.6 $36.9
30-year (FY19/20-FY48/49) N/A N/A $43.9 $57.1
40-year (FY19/20-FY58/59) N/A N/A $55.0 $78.7
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Sewer Manhole Cost Forecast Summary
Description
Condition-based
(Million)
Condition-based
with Inflation
(Million)
Age-based
(Million)
Age-based
with
Inflation
(Million)
5-year (FY19/20-FY23/24) $1.8
$1.8 $0.7 $0.7
7-year (FY19/20-FY25/26) $1.9 $2.0 $0.7 $0.7
22-year (FY19/20-FY40/41) N/A N/A $10.3 $12.4
30-year (FY19/20-FY48/49) N/A N/A $17.4 $22.6
40-year (FY19/20-FY58/59) N/A N/A $29.3 $41.9
Total Gravity Sewers and Manholes Cost Forecast Summary
Description
Condition-based
(Million)
Condition-based
with Inflation
(Million)
Age-based
(Million)
Age-based with
Inflation (Million)
5-year (FY19/20-FY23/24) $7.8 $8.1 $13.5 $14.0
7-year (FY19/20-FY25/26) $10.4 $11.0 $13.5 $14.2
22-year (FY19/20-FY40/41) N/A N/A $87.4 $105.5
30-year (FY19/20-FY48/49) N/A N/A $136.0 $176.9
40-year (FY19/20-FY58/59) N/A N/A $196.0 $280.4
Wastewater Force Main Cost Forecast Summary
Description Age-based (Million)
Age-based with Inflation
(Million)
40-year (FY19/20-FY58/59) $12.6 $18.1
Wastewater Pump Stations Cost Forecast Summary
Description Age-based (Million)
Age-based with Inflation
(Million)
40-year (FY19/20-FY58/59) $48.1 $68.8
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Wastewater Gravity Sewer and Manhole Condition Assessment Cost Forecast
Summary
Description Cost (Million) Cost with Inflation (Million)
40-year (FY19/20-FY58/59) $9.0 $12.7
Water Mains, Valves and Services Cost Forecast Summary
Description
Performance-based
(Million)
Performance-based
with Inflation
(Million)
Age-based
(Million)
Age-based with
Inflation (Million)1
5-year (FY19/20-FY23/24) $19.8 $20.7 $0.4 $0.4
7-year (FY19/20-FY25/26) $28.0 $30.0 $0.4 $0.4
22-year (FY19/20-FY40/41) $105.4 $136.5 $69.0 $96.0
30-year (FY19/20-FY48/49) $159.5 $233.3 $215.0 $337.0
40-year (FY19/20-FY58/59) $242.5 $418.7 $478.0 $849.0
50-year (FY19/20-FY68/69) $347.2 $719.4 $988.0 $2,067.0
Notes: 1 Despite the low cost forecast based on age in the near term, the City has been budgeting approximately $3.5 to $4.5 million per year (including balances carried forward) to address aging infrastructure
Water Pump Stations Cost Forecast Summary
Description Age-based (Million)
Age-based with Inflation
(Million)
40-year (FY19/20-FY58/59) $43.8 $62.7
Water Reservoirs Cost Forecast Summary
Description Age-based (Million)
Age-based with Inflation
(Million)
40-year (FY19/20-FY58/59) $218.4 $312.5
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Recycled Water Mains, Valves and Services Cost Forecast Summary
Description
Performance-based
(Million) 1
Performance-based
with Inflation
(Million) 1
Age-based
(Million)
Age-based with
Inflation (Million)
5-year (FY19/20-FY23/24) $1.5 $1.5 $0.0 $0.0
7-year (FY19/20-FY25/26) $2.5 $2.7 $0.0 $0.0
22-year (FY19/20-FY40/41) $12.0 $15.9 $0.0 $0.0
30-year (FY19/20-FY48/49) $18.7 $27.8 $0.6 $2.0
40-year (FY19/20-FY58/59) $29.0 $50.8 $1.0 $1.7
50-year (FY19/20-FY68/69) $41.9 $87.9 $67.0 $162.0
Notes:
1 Performance-based forecasts assume 11% of potable and recycled water forecasts for recycled water. Actual investments are likely to be more focused on potable water in the near term.
Recycled Water Pump Stations Cost Forecast Summary
Description Age-based (Million)
Age-based with Inflation
(Million)
40-year (FY19/20-FY58/59) $67.3 $96.3
Recycled Water Reservoirs Cost Forecast Summary
Description Age-based (Million)
Age-based with Inflation
(Million)
40-year (FY19/20-FY58/59) $52.6 $75.2
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Replacement Costs and Useful Life Assumptions
Wastewater Gravity Sewer Main and Manhole as well as Potable Water and Recycled Water Pipeline, Valve and Service Lateral Replacement Costs and Useful Life Assumptions are included in the Asset Management Master Plan.
Pump Station and Reservoir Replacement Cost Detail
*Class 5 Estimate - The WaterCost Model used to develop these replacement costs is a planning level cost tool (Estimate Class 5) which means that estimate accuracy will range from 50 to 20% BELOW to 30 to 100% ABOVE actual
cost. The construction cost estimates are prepared by HDR Constructors, Inc. (HDRC) using the Timberline cost estimating software. Construction costs are derived from default input values.
Wastewater Pump Stations Replacement Cost
Construction Costs* Cannon LS Chinquapin LS El Fuerte LS Fox's Landing LS Home Plant LS Knots LS N Batiquitos LS Poinsettia LS Sand Shell LS TerraMar LS Villas LS
1. Structure/Site $2,405,939 $877,370 $1,195,913 $2,291,176 $1,807,684 $647,836 $2,139,753 $2,062,713 $606,230 $573,381 $717,903
2. Mechanical $1,521,678 $613,499 $833,060 $1,470,662 $1,255,730 $623,095 $1,403,348 $1,369,101 $560,506 $523,197 $490,639
3. Electrical/Instrumentation $695,754 $361,044 $412,543 $681,328 $620,551 $344,752 $662,293 $652,609 $336,460 $329,022 $333,361
Total Project Capital Cost* $4,623,372 $1,851,914 $2,441,516 $4,443,166 $3,683,966 $1,615,683 $4,205,394 $4,084,423 $1,503,196 $1,425,600 $1,541,903
Notes:
Capacity information for small pump stations at Pine Beach Bathroom and Tamarack/Frazee Beach Bathroom are not readily available in GIS and are not included.
Water and Recycled Water Pump Station Replacement Cost
Construction Costs* Bressi PS Bressi RC PS Calavera Hills RC PS Calavera PS Carlsbad Water Recycling PS D Site RC PS Maerkle PS
1. Structure/Site $3,457,793 $2,202,799 $1,867,510 $1,651,488 $9,536,423 $4,725,297 $5,002,368
2. Mechanical $3,976,690 $1,697,507 $1,614,034 $1,667,768 $13,180,170 $5,425,690 $4,946,268
3. Electrical/Instrumentation $621,410 $265,302 $291,004 $277,439 $1,898,762 $848,468 $831,555
Total Project Capital Cost* $8,055,892 $4,165,608 $3,772,548 $3,596,694 $24,615,354 $10,999,455 $10,780,190
Notes:
The below flow rates are not in GIS and are assumed for each pump station and used to calculate head for determining cost for water pump stations.
Assumed Flow 3000 1800 11000 3500 3500
Calculated Head 110 110 120 110 110
Pump Station Assumed Useful Life
Construction Cost Element
Assumed Useful
Life (Years) Source
Structure/Site 50 IRS Pub946 Table B
Mechanical 20 WEF Simple and Industry Experience
Electrical/Instrumentation 15 WEF Simple and Industry Experience
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Water Reservoir Replacement Cost
Water Reservoir ELM ELLERY SKYLINE E D3 LA COSTA LO PAJAMA BUENA VISTA B (T.A.P.) MAERKLE #2 LA COSTA HI SANTA FE 2
Tank Type Steel Steel Steel Steel Steel Steel Steel Steel Prestressed Concrete Prestressed Concrete Prestressed Concrete Prestressed Concrete
Capacity, MG 1.5 5.0 1.5 1.5 8.50 1.5 0.010 0.01 (Assumed) 6.0 10.0 6.0 9.0
Construction Costs*
1. Structure/Site $19,780,007 $37,774,809 $19,780,007 $19,780,007 $58,306,806 $19,780,007 $185,096 $185,096 $9,929,054 $16,524,406 $9,929,054 $14,875,568
2. Mechanical $2,655,941 $5,055,525 $2,655,941 $2,655,941 $7,795,998 $2,655,941 $24,900 $24,900 $1,404,989 $2,325,731 $1,404,989 $2,095,545
3. Electrical/Instrumentation $1,186,086 $2,258,545 $1,186,086 $1,186,086 $3,483,856 $1,186,086 $11,107 $11,107 $947,354 $1,575,585 $947,354 $1,418,527
Total Project Capital Cost $23,622,033 $45,088,880 $23,622,033 $23,622,033 $69,586,661 $23,622,033 $221,103 $221,103 $12,281,396 $20,425,722 $12,281,396 $18,389,640
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Recycled Water Reservoir Replacement Cost
Recycled Water Reservoir SANTA FE 1 C D1 D2
Tank Type Prestressed Concrete Steel Steel Steel
Capacity, MG 2.5 1.0 1.25 1.25
Construction Costs*
1. Structure/Site $4,158,363 $15,464,425 $17,622,216 $17,622,216
2. Mechanical $603,959 $2,080,350 $2,368,145 $2,368,145
3. Electrical/Instrumentation $398,058 $927,960 $1,057,023 $1,057,023
Total Project Capital Cost $5,160,379 $18,472,734 $21,047,384 $21,047,384
Reservoir Assumed Useful Life
Construction Cost Element Assumed Useful Life (Years) Source
Tank 50 Industry Experience
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix E. InfoMaster Updates
This appendix provides additional details of the InfoMaster and project packaging
workflows and a guideline for updating data and results in InfoMaster.
Making Significant Changes
When making significant changes to InfoMaster consider setting up a development
InfoMaster project and ArcMap .MXD file for each potential City user to allow users to
utilize the software without impacting the InfoMaster project and system database of record
before changes are finalized. Consider limiting access to the InfoMaster project and
system database of record to certain staff for making updates.
Workflows
InfoMaster software is a tool that is used as part of the overall pipe renewal workflow
process. The figure below illustrates the role InfoMaster will play in the workflow process
and summarizes the overall pipe renewal decision making workflow process.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Figure E-1. InfoMaster Gravity Sewer and Manhole Renewal Workflow
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
InfoMaster software is used to develop the risk model and the InfoMaster Rehabilitation
Plan which includes the recommended renewal action, BREs and flags for reviewers. Once
the data has been processed in InfoMaster, the results should be reviewed for quality
control, including verifying CCTV video media are linked to assets, risk scores and renewal
actions are appropriate, and InfoMaster records that are locked should be locked.
The next steps include validating the output, developing work orders or projects, and
developing costs. The City has results summarized for CUES CCTV data in the Asset
Management Master Plan. Results in InfoMaster will be validated and projects will initially
be identified using InfoMaster. After completion of the work order or project, close-out
procedures are performed including updating or unlocking InfoMaster records. A typical
workflow for validating the output through close-out is show on Figure E-2.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Figure E-2. Output Validation and Project Packaging Workflow
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
InfoMaster Closed-Circuit Television Data and Analysis
Updates
The City will not need to update the CCTV data in InfoMaster periodically for the CUES
CCTV data because the City no longer inspects gravity sewers with this data format.
However, the City may choose to update the decision logic or defect code information in
InfoMaster and the City may choose to update sewer and manhole data associated with
the CUES CCTV data format. In the future, the City will need to update the CCTV data in
InfoMaster when NASSCO PACP data is analyzed in InfoMaster.
These updates require the CCTV data to be imported, risk models rerun, rehabilitation plan
rerun, and facilities updated. The InfoMaster: Update Data and Analysis Quick Reference
below documents the steps to update the data in InfoMaster.
InfoMaster Closed-Circuit Television Data Update and
Analysis Quick Reference
1. Facilities (Sewer Mains and Manholes)
a. InfoMaster drop down menu > Import Facility Data
b. Click Next
c. Navigate to the sewer main and manhole location on the City’s servers. The
CUES data uses the C:\InfoMaster\Carlsbad IMSewer Draft Model and
Files02052019\Carlsbad IMSewer Draft Model and
Files\CarlsbadDataToInnovyze.gdb
d. Set Manhole and gravity main
e. Refer to below quick reference guides for field mapping, query definition, and
import settings
2. CCTV Inspections, Observations, and Video links
a. Update the Survey data
i. Relies on the Sewer Data Import to link Facilities to Surveys
ii. Right click CCTV_Import_Updated_High_v3, > Choose Import
iii. Leave the defaults and click next
iv. Navigate to the CCTV inspection and observations databases on the
City’s servers. The CUES data is already uploaded to InfoMaster.
v.
vi. Set the Inspections, Conditions, and Media tables to the location of data
on the City’s servers
vii. Refer to quick reference guide included in the Asset Mgmt Master Plan
Appendix for table/field mapping and import settings
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
b. Update the Defect Scores (this may be used to adjust the severity of defects
for CUES or future PACP data)
i. Relies on the defects code table in InfoMaster
ii. Update the condition geocoding (placement along the line in GIS)
iii. If displaying the analysis results (defects) in the map, these layers MUST
be removed from the map first or an error will occur in processing.
iv. Right click CCTV_Import_Updated_High_v3 > Choose Run for the CUES
data.
v. To display the results in the map right click the
CCTV_Import_Updated_High_v3 and choose Map Display>All Defect
Layers for the CUES data.
3. Consequence of Failure (COF)
a. Relies on GIS data
b. Run the Analysis (*replaces existing analysis). 2 Options
i. You can run each COF score individually by right clicking each one and
choosing RUN, or;
ii. You can run them all at once by right clicking consequence of failure
(COF) and choosing Batch Run.
4. Likelihood of Failure (LOF)
a. Relies on inspection, cleaning frequency and capacity data
b. Run the Analysis (*replaces existing analysis). 2 Options
i. You can run each LOF score individually by right clicking each one and
choosing RUN
ii. You can run them all at once by right clicking likelihood of failure (LOF)
and choosing Batch Run.
5. Risk
a. Relies on the consequence of failure (COF) and likelihood of failure (LOF)
tables
b. Right click SEW_Risk 1, COF + LOF > choose Run
6. Failure/Deterioration Model: Skip we don’t use it
7. Rehabilitation Plan (Decision Logic)
a. Relies on GIS data and Risk analysis
b. Right click SEW_RehabPlan1, SewerMain Renewal_Plan > choose Run
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
CCTV Data Import Settings and Field Mapping
The City will not need to update the CCTV data in InfoMaster periodically for the
CUES CCTV data because the City no longer inspects gravity sewers with this data
format. However, generic information is provided below for the City’s reference.
CCTV Data Import Settings
Right click CCTV_Import_Updated_High_v3> Choose Import for CUES data. Note, the
CUES data will not need to be updated.
Leave the defaults and click next.
Load the Inspections, Conditions, and Media tables by navigating to the table file locations
using the ‘Select a table’ button (red outline below).
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
See below for field mapping and import settings.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Field Mapping for Inspections
Field mapping translates the CCTV inspections outside of the InfoMaster model and
imports the data into the InfoMaster project database. CUES data has already been
uploaded. PACP format may be utilized by the City in the future.
PACP Format
InspectionID
OriginalID
Owner
Date_
Time_
Upstream_MH
Downstream_MH
Direction
Width
Total_Length
The system field is the InfoMaster Survey import field and the Client field is the adjustable
fields. The required fields are highlighted in red.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Field Mapping for Inspection Media
The below includes Media Instructions for CUES CCTV Data.
1) Video Name, location, and path need to be in the required format:
a. Video file name updates:
Existing video information in the CCTV_Observations Table.Video field Video Name updated to remove path to the following for InfoMaster
\\fdstore01\wdvideo\Wdvideo\Media\Video\WW
ZONE 9-16B-24-16B-90-TAMARACK AVE.mpg
WW ZONE 9-16B-24-16B-90-TAMARACK AVE.mpg
Video name must be in the media inspections table
b. Video folder Location (relative location):
Folder location for the individual videos. Video location must be in the media inspection
table as a relative path.
\\shares\wdvideo\Wdvideo\Media\Video\
c. Media folder path (root):
Root path where the video folder location is.
\\shares\wdvideo\Wdvideo\Media\
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
InfoMaster concatenates the video root path to video path and video name to get the
location to play the video.
Field Mapping for Conditions
Field mapping translates the CCTV observations outside of the InfoMaster model and
imports the data into the InfoMaster project database as conditions. The system field is
the InfoMaster Survey import field and the Client field is the adjustable fields. The required
fields are highlighted in red. CUES data has already been uploaded. PACP format may
be utilized by the City in the future.
PACP Format
ConditionID
OriginalID
InspectionID
Distance
PACP_Code
Continuous
Joint
Clock_At_From
Clock_To
Remarks
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Field Mapping for Conditions Media
Conditions media was not readily available for CUES data and was not imported.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
GIS Data Import Settings
The Import Facility manager is used to import or update GIS facility data into the Infomaster
Project Database. The Import facility manager is found on the Infomaster tool bar shown
below:
Click next or import a standard database:
Similar to CCTV data import the import source table fields are used to populate the facility
data into the InfoMaster project database.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Import Queries can be used here as well. For example all gravity mains managed by
Carlsbad would be:
Full facility information can be mapped into the Infomaster project database. The model
will keep previous mapping fields per category (facility type) which can be found in the
Facility and Asset Type Manager.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Sewer Main Mapping
Location:
C:\InfoMaster\Carlsbad IMSewer Draft Model and Files02052019\Carlsbad IMSewer Draft
Model and Files\CarlsbadDataToInnovyze.gdb for CUES data.
Field Mapping:
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Manhole Mapping
Location:
C:\InfoMaster\Carlsbad IMSewer Draft Model and Files02052019\Carlsbad IMSewer Draft
Model and Files\CarlsbadDataToInnovyze.gdb for CUES data
Field Mapping:
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix F. Map of Water Access Issues
Note: This map is included in the PDF version of the Asset Management Master Plan due to the size
of the map.
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CMWD Potable Water System
Water Main
Other District
CMWD; Potable
CMWD; Reclaimed
Private
Private; Reclaimed
Maintenance Constraint Mains
Carlsbad Desalination Pipeline
SDWA Transmission
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""Y Water Pressure Reducing Station
®InterTie
®Meter Vault
UT Water Reservoir
^CWA Connection Point
Maintenance Constraint 25ft Buffer
CMWD
OMWD
VWD
Municipal Boundary
Parcel Boundary ±0 1.5 30.75 Miles
Maintenance Constraint Areas
Carlsbad Municipal Water District
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix G. Corrosion of AC Pipe
The corrosion of AC pipe follows a two-step process as documented in Water Research
Foundation Project 4480 – Development of an Effective Strategy for Asbestos Cement
Pipe:
• Step 1 – Conversion of free lime (Ca(OH)2) to calcium carbonate (CaCO3)
• Step 2 – Calcium carbonate dissolution and transported away
The first step involves the conversion of free lime to calcium carbonate. This step can be
measured by spraying phenolphthalein stain (i.e. Stain test) on a freshly exposed cross-
section of the pipe wall. The portion of the pipe wall that stains is un-carbonated. The
portion of the pipe wall that is unstained is carbonated. Figure G-1 shows a pipe that has
been recently tested where the left side is the inner portion of the pipe wall and the right
side is the outer portion of the pipe wall.
Figure G-1. Stain Test Results
Carbonation starts at both the inner and outer wall surface. Over time, it progresses
towards the center of the pipe wall which is typically un-carbonated. In asbestos cement
and other non-reinforced concrete applications, carbonation itself does not weaken the
pipe. In fact, studies in non-reinforced concrete actually show a minor strengthening effect
after carbonation. However, in AC pipes, carbonation is a precursor to corrosion.
In step two of the AC pipe corrosion process, if the environment allows for calcium
carbonate to be dissolved and carried away from the calcium-silicate-hydrate and other
cement products in the concrete matrix, strength is lost and the pipe becomes more
susceptible to failure.
The extent of this degradation process can be measured by assessing the remaining
calcium (Ca) content using the Energy Dispersive X-Ray Spectroscopy test (EDS test).
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Figure G-2 shows the EDS test results for the same sample shown in Figure G-1. In this
test, calcium content is measured at multiple points (i.e. wall locations) along the thickness
of the pipe. At installation, calcium content was relatively uniform across the pipe wall
thickness. As the AC pipe wall corrodes from the inner and outer wall surfaces towards
the center of the wall, the calcium content will be significantly lower than the calcium
content at the center of the pipe wall.
The remaining calcium content at each wall location is reported as a percentage and
calculated as the calcium content at that location divided by the maximum calcium content
measured at all locations along the wall. Where the remaining calcium content is high, the
pipe is healthy and strong and less likely to break. Where the remaining calcium content
is relatively low, the pipe is not healthy and more likely to break. Typically, active corrosion
is occurring over a relatively narrow portion of the pipe wall.
Figure G-2. EDS Test Results
Figure G-3 orients both tests for a single sample to each other to correlate the results. On
the inner portion of the pipe wall, the fresh water conveyed by the pipe is an ideal medium
to dissolve and carry away calcium carbonate (Step 2 of the corrosion process). As a
result, shortly after each layer carbonates (Step 1) the pipe corrodes (Step 2). This means
that Stain and EDS tests typically correlate very well to each other on the inner pipe wall.
However, on the outer pipe wall, there is not a consistent medium to dissolve and carry
away the calcium carbonate. Therefore, carbonation can often penetrate deep into the pipe
but the pipe may not corrode nor lose strength.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Figure G-3. EDS Versus Stain Test Correlation
Therefore, it is recommended that EDS data be used to determine the severity of
corrosion. The remaining wall thickness was calculated as the average remaining calcium
at all wall locations divided by the maximum remaining calcium multiplied by the measured
wall thickness.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix H. Assessment of City AC Testing
At the time of this report, the City has collected five AC pipe samples as part of a valve
replacement project. Additional samples are being collected by the City and will be
analyzed in the future as they become available.
Figure G-1 below shows an example of the data provided in the EDS report. This includes
a photograph of the sample and a table of the EDS measurements. As described in
Appendix G, the relative calcium content is the best measure of the effective wall
thickness. Calcium is reported as a percentage of elements within each point tested.
Calcium is measured at ten equally spaced points along the wall thickness from the outer
edge of the wall (Spectrum #1) to the inner edge of the wall (Spectrum #10). Where calcium
levels are relatively low, significant corrosion has occurred. Where calcium levels are
relatively high, significant corrosion has not occurred.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Figure H-1. AC Pipe EDS Test Example
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019|
The data was consolidated into a single spreadsheet which includes the sample #, the
measured diameter, the measured thickness, original design thickness, the location, the
sample type (e.g. break, valve replacement, and service tap), the ten Ca readings, and the
ten hardness readings (where available).
While the physical wall thickness does not change over time, the effective wall thickness
decreases over time as cement leaches from the pipe wall. This thinning of the effective
wall will continue until the effective wall thickness can no longer resist the stresses on the
pipe (e.g. internal pressure, external loads, bending due to ground movement) resulting in
a break. EDS testing measures the effective wall thickness. Typically, corrosion occurs
from the outer and inner wall towards the core which is commonly deteriorated. Therefore,
the remaining wall thickness is calculated as the average remaining calcium at all wall
locations divided by the maximum remaining calcium. Since larger pipes require thicker
walls to resist a particular load, the percent of the design thickness remaining is used to
determine the condition of a pipe. Therefore, the percent of the design thickness remaining
is calculated as:
TR = (CaAve * TMeasured ) / (CaMax * TDesign)
Where:
TR = Percent of the original class 200 design thickness remaining
CaAve = Average calcium content across the sample thickness
CaMax = Maximum calcium content across the sample thickness
TDesign = The design wall thickness for class 200 pipe
TMeasured = The measured wall thickness
The five readily available samples are concentrated in two geographic areas. The first area
is adjacent to the La Costa Golf Course near Navarra Drive and Vista Mariana as shown
in Figure H-2. This area contains three samples from 8-inch pipe. The second is near the
intersection of Carlsbad Village and Valley Street. This area contains two samples from 8-
inch pipe as shown in Figure H-3.
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Figure H-2. Map of EDS Testing in La Costa Area
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Figure H-3. Map of EDS Testing Near Carlsbad Village & Valley Street
The condition assessment results are summarized in Table H-1. All five samples have at
least 70% of their original design thickness remaining. These pipes should have significant
remaining useful life, particularly the pipe near the intersection of Carlsbad Village and
Valley.
Table H-1. Summary of EDS Testing Results
Area LabSampleID Diameter TDesign TMeasured CaAve CaMax Tremaining
Carlsbad Village & Valley 31598 14 1.28 1.3 27.6% 34.0% 83%
Carlsbad Village & Valley 31599 14 1.28 1.3 26.8% 33.0% 83%
La Costa Golf Course 31339 8 0.75 0.83 21.6% 33.9% 70%
La Costa Golf Course 31338 8 0.75 0.77 24.4% 32.6%21 77%
La Costa Golf Course 31337 8 0.75 0.71 22.4% 29.8% 71%
21 An abnormally large Ca reading (47.9%) was reported but removed from this sample. It is believed to
be a laboratory reporting error.
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix I. Break Rate and Replacement Rate
Comparison
A comparison of break rates and replacement rates for selected utilities is included in the table
below.
Utility/Entity Break Rate Replacement Rate
Vista Irrigation District 8 0.4%
Helix Water District 6 0.4%
Mesa Water District 3 0.1%
East Bay MUD 11 0.5%
Contra Costa Water District 1 0.4%
Padre Dam Municipal Water District 3 0.2%
Buena Park 1 0.1%
San Juan Capistrano 9 0.1%
Carlsbad 2 0.1%
Rainbow MWD 14 0.5%
Denver 11 0.4%
City of Phoenix 14 0.4%
Sweetwater Authority/South Bay Irrigation District 8 0.5%
San Dieguito 1 0.1%
Long Beach 3 0.4%
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Appendix J. Water Pipeline and Valve Cumulative
Annual Investment
The table below shows the estimated cumulative annual investment need for recycled
water and potable water pipelines and valves over the next 50 years by investment type
without inflation:
• Replacement – Pipe replacement due to condition and performance issues. During
replacement, adjacent valves, services, and other appurtenances will also be replaced.
• Access – When a pipe replacement project is triggered, the cost to address additional access
issues in a single project.
• Valves – The cost to replace critical inoperable valves when the adjacent pipe has significant
remaining useful life.
• Cathodic Protection – The cost to develop and maintain cathodic protection systems to extend
the life of metallic pipe.
• Condition Assessment – The cost to perform non-destructive condition assessment and
ensure the right pipes are replaced at the right time.
Year Replacement
(million)
Access
(million)
Valve
(million)
Cathodic
Protection
(million)
Condition
Assessment
(million)
Total
(million)
2020 $1.98 $0.34 $1.00 $0.20 $0.44 $3.96
2021 $2.12 $0.36 $1.00 $0.20 $0.44 $4.12
2022 $2.24 $0.38 $1.00 $0.20 $0.44 $4.26
2023 $2.37 $0.40 $1.00 $0.20 $0.44 $4.41
2024 $2.49 $0.42 $1.00 $0.20 $0.44 $4.55
2025 $2.60 $0.44 $1.00 $0.05 $0.44 $4.54
2026 $2.72 $0.46 $1.00 $0.05 $0.44 $4.68
2027 $2.84 $0.48 $1.00 $0.05 $0.44 $4.81
2028 $2.96 $0.50 $1.00 $0.05 $0.44 $4.95
2029 $3.07 $0.52 $1.00 $0.05 $0.44 $5.09
2030 $3.19 $0.54 $1.00 $0.05 $0.44 $5.22
2031 $3.31 $0.56 $1.00 $0.05 $0.44 $5.36
2032 $3.43 $0.58 $1.00 $0.05 $0.44 $5.50
2033 $3.55 $0.60 $1.00 $0.05 $0.44 $5.64
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
Year Replacement
(million)
Access
(million)
Valve
(million)
Cathodic
Protection
(million)
Condition
Assessment
(million)
Total
(million)
2034 $3.67 $0.62 $1.00 $0.05 $0.44 $5.78
2035 $3.79 $0.64 $1.00 $0.05 $0.44 $5.93
2036 $3.92 $0.67 $1.00 $0.05 $0.44 $6.07
2037 $4.04 $0.69 $1.00 $0.05 $0.44 $6.22
2038 $4.17 $0.71 $1.00 $0.05 $0.44 $6.37
2039 $4.30 $0.73 $1.00 $0.05 $0.44 $6.52
2040 $4.43 $0.75 $1.00 $0.05 $0.44 $6.67
2041 $4.57 $0.78 $1.00 $0.05 $0.44 $6.83
2042 $4.70 $0.80 $1.00 $0.05 $0.44 $6.99
2043 $4.84 $0.82 $1.00 $0.05 $0.44 $7.15
2044 $4.98 $0.85 $1.00 $0.05 $0.44 $7.32
2045 $5.13 $0.87 $1.00 $0.05 $0.44 $7.49
2046 $5.28 $0.90 $1.00 $0.05 $0.44 $7.66
2047 $5.43 $0.92 $1.00 $0.05 $0.44 $7.84
2048 $5.58 $0.95 $1.00 $0.05 $0.44 $8.02
2049 $5.74 $0.98 $1.00 $0.05 $0.44 $8.21
2050 $5.90 $1.00 $1.00 $0.05 $0.44 $8.40
2051 $6.07 $1.03 $1.00 $0.05 $0.44 $8.59
2052 $6.24 $1.06 $1.00 $0.05 $0.44 $8.79
2053 $6.41 $1.09 $1.00 $0.05 $0.44 $8.99
2054 $6.59 $1.12 $1.00 $0.05 $0.44 $9.20
2055 $6.77 $1.15 $1.00 $0.05 $0.44 $9.41
2056 $6.96 $1.18 $1.00 $0.05 $0.44 $9.63
2057 $7.15 $1.22 $1.00 $0.05 $0.44 $9.86
2058 $7.35 $1.25 $1.00 $0.05 $0.44 $10.09
2059 $7.55 $1.28 $1.00 $0.05 $0.44 $10.32
2060 $7.76 $1.32 $1.00 $0.05 $0.44 $10.56
2061 $7.97 $1.35 $1.00 $0.05 $0.44 $10.81
Asset Management Master Plan
Carlsbad Municipal Water District & the City of Carlsbad
June 2019 |
Year Replacement
(million)
Access
(million)
Valve
(million)
Cathodic
Protection
(million)
Condition
Assessment
(million)
Total
(million)
2062 $8.19 $1.39 $1.00 $0.05 $0.44 $11.07
2063 $8.41 $1.43 $1.00 $0.05 $0.44 $11.33
2064 $8.64 $1.47 $1.00 $0.05 $0.44 $11.60
2065 $8.88 $1.51 $1.00 $0.05 $0.44 $11.88
2066 $9.13 $1.55 $1.00 $0.05 $0.44 $12.17
2067 $9.38 $1.59 $1.00 $0.05 $0.44 $12.46
2068 $9.64 $1.64 $1.00 $0.05 $0.44 $12.76
2069 $9.90 $1.68 $1.00 $0.05 $0.44 $13.07
2070 $10.18 $1.73 $1.00 $0.05 $0.44 $13.40
Sewer System Management Plan
2019 SSMP Update
Attachment F1
Overflow Emergency Response Plan
Asset Management Master Plan Carlsbad Municipal Water District & the City of Carlsbad
| June 2019
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Wastewater
Overflow Emergency Response Plan
(OERP)
August 2019
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 1
Table of Contents
1. PURPOSE ................................................................................................................................................. 4
2. GENERAL ............................................................................................................................................... 4
2.1 Order No. 2006-0003-DWQ ........................................................................................................... 4
2.2 Order No. 2008-0002-EXEC .......................................................................................................... 4
2.3 Carlsbad’s Obligation to Comply ................................................................................................... 4
2.4 NPDES General Permit................................................................................................................... 4
2.5 City of Carlsbad and the Encina Wastewater Authority ............................................................. 5
2.6 Prohibitions ........................................................................................................................................ 5
2.7 Overflow Emergency Response Plan ............................................................................................ 5
2.8 Feasible Steps ..................................................................................................................................... 5
2.9 Civil Monetary Remedies and Penalties ......................................................................................... 5
2.10 Sanitary Sewer Overflow .............................................................................................................. 5
2.11 Private Lateral Sewage Discharge (PLSD)……………………………………………….6
3.0 OVERFLOW DETECTION AND INITIAL RESPONSE ............................................................. 6
3.1 Overflow Detection .......................................................................................................................... 6
3.1.1 Observation ................................................................................................................................... 6
3.1.1 Figure 1 - Flow Chart...……………………………………………………..……………7
3.1.2 Electronic Monitoring/Smartcovers .......................................................................................... 8
3.1.3 Electronic Monitoring/Intelliserve ............................................................................................ 9
3.1.4. Supervisory Control and Data Acquisition (SCADA)……………………………………11
3.2 Overflow Response ........................................................................................................................ 12
3.2.1 Agency Jurisdiction ..................................................................................................................... 12
3.2.2 Preliminary Assessment and Response .................................................................................... 12
3.2.3 Additional Measures for Severe Overflow Conditions ......................................................... 13
3.2.4 Collection Systems: Gravity Sewer Blockages ........................................................................ 14
3.2.5 Collection Systems: Gravity Sewer Breaks .............................................................................. 14
3.2.6 Private Property .......................................................................................................................... 15
3.2.7 Lift Station Overflow ................................................................................................................. 15
3.2.8 Lift Stations Overflow Response………………………………..……………………….16
3.2.9 SEMS/Incident Command Activation. ................................................................................... 16
4. MITIGATION ....................................................................................................................................... 17
4.1 Reducing Spill Severity ................................................................................................................... 17
4.2 Coastal Waters & Environmentally Sensitive Areas .................................................................. 17
5. PUBLIC ACCESS AND WARNING ................................................................................................ 18
5.1 Overflow Posting ............................................................................................................................ 18
5.2 Media Communication Methods .................................................................................................. 20
6. RECOVERY AND CLEAN UP ........................................................................................................ 20
6.1 Concrete Storm Drains and Appurtenances and Streets, Curb and Gutter ........................... 20
6.2 Waterways ........................................................................................................................................ 21
6.3 Lawn/Landscaping ......................................................................................................................... 21
6.4 Natural Vegetation/Environmentally Sensitive Areas .............................................................. 21
6.5 Indoors ............................................................................................................................................. 21
6.6 Private Lateral Spills ....................................................................................................................... 21
7. WATER QUALITY MONITORING AND SAMPLING PROCEDURES ............................. 22
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 2
7.1 Mobilization ..................................................................................................................................... 22
7.2.1 DHS & DFG Coordination. ..................................................................................................... 22
7.2.2 Modification of Sampling Regime. ........................................................................................... 22
7.2.3 Sampling Procedure. ................................................................................................................... 22
7.2.4 Outside Sampling Assistance. ................................................................................................... 23
7.2.5 Sampling Duration. ..................................................................................................................... 23
7.2.6 Summary Report. ........................................................................................................................ 23
7.2.7 Records Retention. ..................................................................................................................... 23
8. INVESTIGATION AND OVERFLOW ESTIMATION ............................................................. 23
8.1 Overflow Quantification ................................................................................................................ 23
8.2 Overflow Events Records ............................................................................................................. 23
8.3 After Action Report ........................................................................................................................ 25
9. REGULATORY NOTIFICATION & REPORTING ................................................................... 25
9.1 Category 1 Spills .............................................................................................................................. 25
9.2 Category 2 Spills .............................................................................................................................. 26
9.3 Private Lateral Spills ....................................................................................................................... 26
9.4 Staff Responsible for Reporting ................................................................................................... 26
10. EQUIPMENT ........................................................................................................................................ 27
10.1 Wastewater Vehicles .................................................................................................................. 27
10.2 Equipment and Parts Lists ........................................................................................................ 28
11. SAFETY .................................................................................................................................................. 28
11.1 Traffic and Crowd Control ........................................................................................................ 29
11.2 Safety Training Goals ................................................................................................................. 30
11.2.1 Operational Safety/Sewer Main Maintenance Equipment ................................................... 30
11.2.2 General Safety/Protection Training ......................................................................................... 31
11.2.3 General Safety/Driver ................................................................................................................ 31
11.2.4 General Safety/Road Work ....................................................................................................... 31
11.2.5 General Safety/Control Safety .................................................................................................. 31
11.2.6 General Safety/Other ................................................................................................................. 32
12. TRAINING............................................................................................................................................. 32
12.1 Reviewing and Amending the Overflow Emergency Response Plan ................................. 31
12.2 Annual Training .......................................................................................................................... 31
12.2.1 Tailgate Training. ....................................................................................................................... 31
12.2.2 Tabletop Exercise. ..................................................................................................................... 31
12.2.3 Full Scale Functional Exercise. ................................................................................................ 31
12.2.4 Exercise Debriefing. .................................................................................................................. 31
13. CONTACT INFORMATION ........................................................................................................... 32
BY CATEGORY .................................................................................................................................. 32
14. CONTACT INFORMATION ........................................................................................................... 38
ALPHABETICAL ................................................................................................................................ 38
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 3
15. APPENDICES ……………………………………………………………………………..38
A. State Water Resources Control Board Order No. 2006-0003-DWQ
B. State Water Resources Control Board Order No. 2013-0058-EXEC
C. City Sanitary Sewer System ADS Meters & Smart Cover Alarms Map
D. City Sewer Agencies & Map of Facilities – Creeks and Lagoons
E. City Lift Station Emergency Spill Response Plans
F. City Wastewater Emergency Spill Notification Contact List
G. City Lift Station Generators List
H. City SSO Contact Tree
I. Sanitary Sewer Overflow Response Form – Field Documentation
J. CIWQS Online Database Screen Shot
K. Reference Sheet for Estimating Sewer Spills from Manholes
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 4
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 5
1. PURPOSE
This Overflow Emergency Response Plan (OERP) has been developed to ensure an appropriate and
standardized response in the event of a sewer overflow. The Plan also ensures that the City of Carlsbad
is adequately prepared to respond to SSO events by:
• Reducing or eliminating public health hazards
• Preventing unnecessary property damage
• Ensuring thorough recovery and cleanup efforts
• Properly documenting, notifying and reporting overflow spill events
• Minimizing the inconvenience of service interruptions
• Ensuring staff and contracted personnel are properly trained to respond to such events
2. GENERAL
2.1 Order No. 2006-0003-DWQ
On May 2, 2006, the State Water Resources Control Board adopted Statewide General Waste
Discharge Requirements for Sanitary Sewer Systems. The intent of the Order is to regulate all
collections systems in the State in an effort to reduce the number of Sanitary Sewer Overflows
(SSOs) which, by their nature, pollute the environment. The Order is applicable for all publicly
owned sewage collection systems with more than one mile of sewer pipe. As of 2019, the City
of Carlsbad has 265 miles of sewer pipe and therefore, is subject to this Order. A copy of the
Order is found in Appendix A.
2.2 Order No. 2013-0058-EXEC
On August 6, 2013, the State Water Resources Control Board adopted amendments to
monitoring and reporting requirements for Statewide General Waste Discharge Requirements
for Sanitary Sewer Systems. A copy of Order No. 2013-0058-EXEC can be found in Appendix
B.
2.3 Carlsbad’s Obligation to Comply
In response to the 2006 WDR Order, the City of Carlsbad submitted an application for permit
coverage with the State Water Resources Control Board, was issued Agency WDID #
9SSO11209, is required to comply with all conditions of the Order and is subject to enforcement
action for any noncompliance therewith.
2.4 NPDES General Permit
In 2007, the Regional Water Quality Control Board issued Permit No. R9-2007-0001 requiring
permittees to control the discharge of pollutants from the MS4s to the Waters of the United
States.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 6
2.5 City of Carlsbad and the Encina Wastewater Authority
The City of Carlsbad is a member agency of the Encina Wastewater Authority (EWA). The
Encina Wastewater Authority contract operates the Buena Vista Sewage Lift Station and the
Agua Hedionda Sewage Lift Station.
2.6 Prohibitions
Order No. 2006-0003-DWQ prohibits any SSO that results in a discharge of untreated or
partially treated wastewater to waters of the United States or that results in a discharge of
untreated or partially treated wastewater that creates a nuisance as defined in California Water
Code Section 13050(m).
2.7 Overflow Emergency Response Plan
Order No. 2006-0003-DWQ requires that an Overflow Emergency Response Plan be developed
and implemented as a part of the Sewer System Management Plan (SSMP).
2.8 Feasible Steps
Order No. 2006-0003-DWQ states that in the event of an SSO, all feasible steps shall be taken
to contain and mitigate the impacts of an SSO and to prevent untreated or partially treated
wastewater from discharging from storm drains into flood control channels or waters of the
United States by blocking the storm drainage system and by removing the wastewater from the
storm drains.
2.9 Civil Monetary Remedies and Penalties
The California Water Code provides various enforcement options, including civil monetary
remedies, for violations of Order No. 2006-0003-DWQ.
2.10 Sanitary Sewer Overflow
A sanitary sewer overflow (SSO) is any overflow, spill, release, discharge or diversion of
wastewater from a sanitary sewer system. SSOs include:
• Overflows or releases of wastewater that reach waters of the United States, and
• Overflows or releases of wastewater that do not reach waters of the United States, and
• Wastewater backups into buildings and on private property that are caused by blockages or
flow conditions within the publicly owned portion of a sanitary sewer.
2.11 Private Lateral Sewage Discharge (PLSD)
Sewage discharges caused by blockages or other problems within privately owned laterals or
collection systems which are tributary to the publicly owned sanitary sewer system. This type of sewage discharge is the responsibility of the private lateral or collection system owner.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 7
3. OVERFLOW DETECTION AND INITIAL RESPONSE
3.1 Overflow Detection
3.1.1 Observation
The City of Carlsbad staff, Encina Wastewater Authority personnel or the general public
(businesses, residents, etc.) may detect an overflow, or report suspicious circumstances (unusual
odors, sounds, flooding, etc.) which could indicate the possibility of an overflow.
During normal business hours, a call received by the City of Carlsbad Utilities Department will
be routed by the Senior Office Specialist to the Utilities administrative staff and then the
appropriate stand-by person. During after-business hours and weekends, the Police Department
operator will collect contact information and details of the complaint and relay these details to
the City’s Construction Maintenance Duty Person. A flow chart showing the response process
that occurs when receiving a phone call is outlined below in Figure 1.
• Normal Business Hours: 8:00 a.m. to 5:00 p.m. on Monday thru Friday, with the exception of holidays
• After-Business Hours: 5:00 p.m. to 8:00 a.m. on Monday thru Friday, weekends, and
holidays.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 8
Figure 1 – SSO Response Process
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 9
Once the initial report is received by the City of Carlsbad, the appropriate crews will respond to
the site to investigate and initiate response. During normal business hours, the response is
performed by the Collections Duty person. The Collections Duty crew will respond to the site
and upon determining the spill is wastewater-related, will proceed with spill response activities.
If the Collections Duty crew needs more resources, they call the Wastewater Supervisor.
Additional personnel and Mutual Aid resources are on-call 24 hours, should assistance be
needed. Figure 1 shows this response process.
During after-business hours, the Construction Maintenance Duty crew will perform the initial
investigation to determine the nature of the issue. If the event is wastewater-related, the
Construction Maintenance Duty will call the Collections Duty crew. The Construction
Maintenance Duty crew has containment equipment (i.e. sandbags, shovels) and are responsible
for traffic and crowd control to keep people safe. The Collections Duty crew will then respond
in a similar manner as normal business hours.
3.1.2 Electronic Monitoring/Smart Covers
The City currently uses flow level sensors (i.e., Smart Covers) at 30 permanent manhole locations
in the collection system. Smart Cover sensors are mounted on manhole covers and will send an
alert or alarm to the staff listed below via a mobile phone text of the problem condition. All lift
stations have a flow level sensor strategically located upstream of the lift station to act as a
backup alarm system.
• Alarm Notifications for Smart Cover Sensors Upstream of Lift Stations: Construction Maintenance Duty, Collections Duty, Operations Supervisor, and Utilities
Manager, Wastewater Operations Duty.
• Alarm Notifications for Smart Cover Sensors Not Associated with Lift Stations:
Construction Maintenance Duty, Collections Duty, Operations Supervisor, and Utilities
Manager.
Each Smart Cover sensor is configured with predetermined set points for flow levels indicating
surcharge. Alerts are sent when surcharge is detected above normal conditions, yet before the
set point is surpassed. Alarms are sent when the flow level exceeds a predetermined set point or
when a manhole cover is opened. Alerts and alarms are designed to help the City with detecting
surcharging manholes which may be caused by blockages and to alert staff of intrusion into the
system thereby reducing vandalism. Smart Cover level sensor locations are detailed in Table 1.
Table 1: City of Carlsbad Smart Cover Locations
Item No. Asset ID Location Description
1 37D-23 Via Loma Siphon In parking space in front of 1804
Nicolia Drive
2 4D-11 Jefferson In the street in front of 2381
Jefferson Street
3 16A-93 Roosevelt north of Chestnut In front of 3342 Roosevelt Street
4 9B-48 Buena Vista Circle In front of 2390 Buena Vista Circle
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 10
Item No. Asset ID Location Description
5 15B-46 Washington easement West side of railroad tracks across
from Public Storage building
6 27A-2 Shore Drive & Tierra del
Oro In driveway of 5061 Shore Drive
7 10C-49 Harding Street Intersection of Harding Street &
Pine Avenue
8 15B-25 Pine & Lincoln In the middle of intersection at
Pine Avenue & Lincoln Street
9 16C-97 Chinquapin & Garfield In front of 3980 Garfield Street
10 9D-8 Beech & Ocean In front of 2747 Ocean Street
11 10B-23 Valley & Valley In front of 3297 Valley Street
12 9D-57 Grand & State In front of 421 Grand Avenue
13 16C-17 Chinquapin In front of 422 Chinquapin Avenue
14 16A-4 Pio Pico North Pio Pico in front of Saint
Patrick’s School Driveway
15 6A-51 Tanglewood In between 2534 & 2602 Via
Astuto
16 5A-21 North County Plaza Behind building 1822
17 1C-2 VC Trunk North side of North County Plaza
at the back
18 5B-35 Hosp Way
300 ft. west of El Camino Real just
before the turn pocket to the Eaves
Apartments
19 35B-15 BSD Costco 15 Down easement road east of
Armada Drive
20 24D-36 El Fuerte In parking lot in front of 5818 El
Camino Real
21 16D-15 Fox’s East of boat launch ramp near
picnic deck
22 27B-3 Cannon & I-5 In turn pocket for southbound I-5
23 27B-66 Terramar lift station
On Cannon Road at El Arbol
Drive, westbound lane, directly in
front of lift station
24 41A-4 Avenida Encinas (Occidental line)
Just north of Poinsettia Coaster
Station, inside black wrought iron
fence area
25 16C-84 Chinquapin lift station, 4010
Carlsbad Blvd
On Carlsbad Blvd northbound bike
lane
26 23A-67 Cannon lift station, 2197
Cannon Rd In east driveway, outside gate
27 7C-3 Villas lift station, 2860
Winthrop Ave In front of the garages
28 47C-15 Batiquitos lift station, 7382
Gabbiano Ln
In manhole inside gated area of
station
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 11
Item No. Asset ID Location Description
29 25C-9 El Fuerte lift station, 5812 El
Fuerte
In manhole inside gated area of
station
30 38C-45 Poinsettia lift station, 2425
Poinsettia Ln
In manhole, southeast corner by
fence, inside gated area of station
Table 1 continued above: City of Carlsbad Smart Cover Locations
3.1.3 Electronic Monitoring/Intelliserve
Encina Wastewater Authority and the City of Carlsbad employ the use of Intelliserve real time
flow monitoring. Intelliserve uses a Web browser and connects Carlsbad to an ADS flow
monitoring network that delivers the status of flow activity throughout various locations in the
wastewater collection system.
Intelliserve utilizes MLI (Monitor Level Intelligence) to produce learned hydraulic flow patterns
that spot flow anomalies with each cycle. If necessary, MLI initiates a new firing sequence up
to four times to confirm a new flow regime that may be developing.
An automated alarm notifies the Collections Duty, Operations Supervisor and Utilities Manager
about the occurrence of flow performance abnormalities and data anomalies at the flow
monitoring locations. Monitors send alerts into the hosted system which identifies flow and
depth patterns outside of each location’s threshold and registers them as alarms.
ADS Intelliserve has very diverse data storage capabilities. This data can be viewed via the hosted
website. Agencies can share data for the overall benefit of work effort. The web interface
provides flexible graphs and reports that can be viewed from simultaneously in separate
windows.
The Intelliserve Data Center has a very high level of security. The Data Center itself is protected
by the use of 24/7 video surveillance. Network devices and connectivity equipment are secured
through both software and hardware-based firewalls along with state-of-the-art intrusion
detection systems. A map of Smart Cover and ADS Intelliserve locations is contained in
Appendix B.
3.1.4 Supervisory Control and Data Acquisition (SCADA)
The City’s 11 sewer lift stations are equipped with monitoring and alarming capabilities via the SCADA system. The Wastewater Operations Duty is sent an alarm message alert via email if
any of the following abnormal conditions occur:
• High or low wet well levels,
• Dry well flooding,
• Power failure,
• Pump failure,
• Station intrusion, and
• High pump temperature
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 12
The Buena Vista and the Agua Hedionda sewer lift stations are jointly owned with the City of
Vista and are operated by the Encina Wastewater Authority (EWA). Due to the size and
importance of these sewer lift stations, the SCADA alarming capabilities are extensive.
Encina Wastewater Authority is staffed 24/7 and EWA personnel monitor system controls
continuously and receive alarms of abnormal conditions to the control room. EWA personnel
strive to respond to alarms within 15 minutes at Agua Hedionda lift station and within 30
minutes at Buena Vista lift station.
3.2 Overflow Response
This section presents a strategy for the City of Carlsbad to mobilize labor, materials, tools and equipment to correct or repair conditions which may cause or contribute to an unauthorized discharge.
CAL WARN Mutual Aid Agreement
The City of Carlsbad Utilities Department entered into a mutual aid agreement on May 28, 2019 with
CAL WARN which stands for California Water Agency Response Network. This mutual aid agreement enables the City of Carlsbad to request aid during large scale emergencies. The City of Carlsbad can
receive requests for aid from other CAL WARN member agencies.
The topic of mutual aid is not a new concept. The City of Carlsbad has been involved in localized mutual aid efforts in the past. The mutual aid incidents have been activated on a more informal basis.
In the event that an actual official CAL WARN incident occurs, a more formal approach will be executed. More information can be found on www.calwarn.org
3.2.1 Agency Jurisdiction
The City of Carlsbad is serviced by three sewering agencies; the City of Carlsbad, Leucadia
Wastewater District, and the Vallecitos Water District. Upon arriving to respond to a spill, if it is found that the spill is outside of the City of Carlsbad’s sewer service area, the responsible
agency will be contacted to respond to the spill. The City of Carlsbad will continue its efforts to contain and clean up the spill until the responsible agency arrives. A map of the City of
Carlsbad’s sewer service area and other collection system agencies serving areas within the City of Carlsbad is contained in Appendix C.
3.2.2 Preliminary Assessment and Response
The response by the City of Carlsbad will differ, according to the severity of the overflow and
the origin and location of waterways in proximity to the overflow. Overflows can occur at lift stations from force mains, siphons, gravity pipelines and from private property.
If it is determined to be a sewer spill, the first responder is to do the following:
After Hours – Construction Maintenance Duty is First Responder
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 13
• Determine whether issue is sewer-related
• If sewer-related, contract Collections Duty
• If the issue is with a private lateral, will take immediate steps to stop the overflow
• Identify and request, if necessary, additional personnel, materials and equipment to
minimize the impact of the SSO
• Determine the immediate destination of the SSO (e.g. storm drain, gutter, culvert and receiving water
• Take steps to contain the spill and limit environmental impacts;
• Control public access to spill area
Normal Business Hours – Collections Duty is First Responder
• Determine the cause of the SSO (e.g. sewer line blockage, pipeline break, lift station
failure, etc.)
• Take steps to contain the spill and limit environmental impacts;
• Take immediate steps to stop the overflow
• Identify and request, if necessary, additional personnel, materials and equipment to
minimize the impact of the SSO
• Determine the immediate destination of the SSO (e.g. storm drain, gutter, culvert and
receiving water
• Control public access to spill area
The City of Carlsbad will take all feasible steps to contain and mitigate the impacts of the SSO,
whether the spill is public or private. The first person arriving at the scene shall initiate measures
to contain the spill, where possible, and to minimize the impact to the public and environment.
The following are response guidelines for containing an SSO: perform containment and
recovery by blocking or sandbagging the storm drain and recovering sewage using the
combination truck.
3.2.3 Additional Measures for Severe Overflow Conditions
• In the event of a severe SSO or sewer line collapse, set up a portable by-pass pump
operation around problem/obstruction. Depending on the situation, contractors may be utilized for specialty repairs, transport of sewage in trucks, or for specialty equipment
rental.
• Implement continuous or periodic monitoring of the by-pass pumping operation as necessary.
A listing of city resources can be found in Appendix F, and a complete list of contractors,
neighboring and regulatory agencies can be found in Sections 13 and 14. More specific responses to overflows are outlined in the successive sections.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 14
3.2.4 Collection Systems: Gravity Sewer Blockages
Gravity sewer mains may experience blockages due to grease build-up, root intrusion,
construction debris, and ragging or pipeline defects. The combination truck is used to restore
free flow of sewage. The procedure for operating the combination truck is basically the same
for either routine or emergency blockages.
First, set up the combination truck at the downstream manhole from the obstruction and use it
to jet upstream through the sewer main. The normal operating pressure of the combination
truck is approximately 1200-1500 psi. On some occasions, the psi is pushed up to 1800,
however, it is not recommended to exceed 2000 psi. Make several attempts to clear the blockage,
depending on the severity of the obstruction. If needed, switch from a normal cleaning nozzle
to a penetrating nozzle.
Once the blockage is cleared, monitor the surrounding manholes to ensure that the flow in the
sewer system has returned to normal. After the flows have returned to normal, make several
more passes through the section of main that had the blockage to make sure that the obstruction
has been cleared. Once the obstruction has been cleared, clean the pipe segments immediately
upstream and downstream of the pipe segment that contained the blockage.
Request inter-departmental personnel for support with spill capture and clean up as
necessary. City of Carlsbad personnel must remain at the scene until the sewer line is cleared
and free flowing, unless a more urgent matter takes precedence. If the blockage is suspected to
be caused a maintenance or structural issue, request the pipe segment to be inspected using
CCTV. The City uses this inspection data to determine an appropriate corrective action to
prevent blockages at this site in the future. If the cause of the spill is known and not related to
a maintenance or structural issue, the pipe segment does not need to be inspected using CCTV.
3.2.5 Collection Systems: Gravity Sewer Breaks
If a gravity sewer main breaks, City of Carlsbad personnel will meet at the site to assess the
damage and take whatever precautions are necessary to contain the spill. This may involve the
installation of portable pumps to reroute the wastewater around the break and/or high lines to
pump around the break. This may also result in having to extract and manually truck the sewage
to a disposal site at a nearby downstream sewer manhole or at the Encina Wastewater Treatment
Facility.
City of Carlsbad personnel will determine the destination of overflow, e.g. MS4 (storm drain
system) which would be any of the following: curb/gutter, catch basins, brow ditches, etc. The
will make attempts to contain overflow and Block storm drain inlets, build dirt berms, or take
whatever steps that are needed to keep the sewage from leaving the affected area.
The necessary repairs will be made after inspection of the broken pipe and a determination as
to the best method of repair. The City of Carlsbad will be responsible to submit the required
reports to the Regional Board, San Diego County Health Department and other agencies as
required.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 15
3.2.6 Private Property
As part of the WDR R9-2007-0005 Region 9 requirements all spills must be reported, including
private spills. The City of Carlsbad will respond to spills to recapture effluent to protect the
environment. Upon verification of a private spill, containment measures and property
owner/manager notification are a priority.
The owner/manager will be notified that the spill is their responsibility, and that they must stop
using water immediately and call a plumber to respond within an hour. The City of Carlsbad
staff will ask the owner/manager to terminate all water usage until the situation is remedied, or
water shut-off may be necessary.
City of Carlsbad personnel will determine the destination of overflow, e.g. MS4 (storm drain
system) which would be any of the following: curb/gutter, catch basins, brow ditches, etc. They
will make attempts to contain overflow and will block storm drain inlets, build dirt berms, or
take whatever steps that are needed to keep the sewage from leaving the affected area. As a
courtesy, City crews will clean up the portion of the overflow that leaves the property.
3.2.7 Lift Station Overflow Response – City-Operated Lift Stations
If a call is received to report a lift station overflow at a lift station operated and maintained by
City staff, the responsible on-call personnel (i.e., Construction Maintenance Duty or Collections
Duty) will be notified to respond immediately to the incident. Once the lift station overflow is
confirmed as the source of the problem, corrective actions are initiated which may include
utilizing mutual aid agreements and/or contractors, depending on the magnitude of the incident.
The City has developed site-specific spill response plans for each of the City’s lift stations. Spill
plans specific to each of the City’s lift stations are found in Appendix E.
The City of Carlsbad owns and operates 11 sewer lift stations. The 11 City of Carlsbad lift
stations utilize a duty-standby pump system meaning that each pump is sized to handle the entire
design flow of the station. If one pump fails, the other will start automatically and run while
repairs or maintenance is performed on the other pump. In the event of a major sewer lift
station failure, most facilities have some storage capacity. These facilities would require time-
sensitive monitoring and calling for a pumping contractor if deemed necessary.
Nine of the eleven lift stations have stationary generators supplying emergency power to the
sewer lift stations in the event of a power failure. Two other two lift stations use portable
generators. The City of Carlsbad has two portable generators for additional support and backup.
A generators list for the sewer lift stations is found in Appendix G.
In addition, the use of bypass pumps connected to discharge piping, and suction from the
station’s wet well can be used to prevent a spill in the event of a lift station failure. Other
alternatives include:
• Operate in Hand. Operating additional sewage pump systems (in hand) until the wet well level has been brought under control.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 16
• Restore Power. Restoring power to the lift station either by starting the emergency generators or closing the main electrical service breaker to the affected facility.
• Clear Obstructions. Clearing an obstructed bar screen or pump volute of rags and
debris.
• Isolate Breaks. Isolating a pipeline break and employing alternate pumping systems.
• Check Circuits. Replacing fuses in pump control circuitry or otherwise repairing that
circuitry.
• Secure Flows. Securing flow to the facility or intercepting and rerouting of sewage flows
around the facility.
• Protect Pumps. The most potentially damaging overflow is caused by mechanical
damage to pumps and piping in a station drywell. If pump motors are submerged, severe
damage could result leaving the station without pumping capabilities. Therefore,
appropriate steps should be taken to protect the facilities from damage that may result
from rising water levels.
• Utilize Private Contractors. Private contractors may be summoned to provide assistance
at the remote facility and overflow site.
3.2.8 Lift Stations Overflow Response
The City of Carlsbad has emergency response plans for each of its 11 lift stations. These emergency response plans are located in Appendix E.
3.2.9 SEMS/Incident Command Activation.
During emergency incidents such as large spills, force main ruptures or lift station failures, the
Standardized Emergency Management System (SEMS) structure will be instituted incorporating the functions and principles of the Incident Command System (ICS). The SEMS structure is
depicted in Figure 1. The use of SEMS will improve the mobilization, deployment, utilization, tracking and demobilization of needed mutual aid resources and reduce poor coordination and
communication. The levels within the structure will be activated as needed, depending on the emergency.
If one individual can simultaneously manage all major functional areas, no further assignment is
required however, if one or more of the functions requires independent management, an individual will be assigned responsibility for that function. As a guideline, Planning positions
will be staffed by the Engineering Division; Logistics will be staffed by the Analyst team, Finance/Administration will be staffed by the Finance Division, and Utilities will be staffed to
fill the Command & Operations positions.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 17
Figure 2: Standardized Emergency Management System (SEMS) Structure for a major spill, force main ruptures or lift station failure
4. MITIGATION
4.1 Reducing Spill Severity
The City of Carlsbad encompasses 42 square miles in coastal North San Diego County. The County of
San Diego, Carlsbad, and six other cities lie within the Carlsbad Hydrologic Unit. The Carlsbad Hydrologic Unit contains multiple lagoons, wetlands, creeks and tributaries considered “waters of the
United States” per 33 CFR part 328.
These Natural Resources are an integral part of the quality of life for all who live, work and play in the City of Carlsbad. It is therefore paramount to any SSO response effort, that the magnitude or severity
of the overflow is minimized. To assist in minimizing the severity of the overflow, there are redundancy alarms and monitoring at all lift stations throughout the sewer system.
4.2 Coastal Waters & Environmentally Sensitive Areas
Coastal waters include the Pacific Ocean, lagoons and wetlands, and their tributaries within Carlsbad,
the major bodies of water include: Buena Vista Creek and Lagoon, Agua Hedionda Lagoon, Canyon De Las Encinas Creek, San Marcos Creek, Batiquitos Lagoon, and the Pacific Ocean. A map of creeks and
lagoons in proximity to sewer facilities is in Appendix D.
Despite efforts to avoid environmental consequences to these areas, SSOs often have an impact on waters of the United States. Untreated sewage is comprised of high concentrations of bacteria,
biochemical oxygen demand (BOD), nutrients, heavy metals, solids and synthetic organics. These pollutants can adversely affect the quality of water needed to support and sustain beneficial uses for
contact and non-contact recreation and for aquatic life. When this happens, the City of Carlsbad will take steps to monitor, mitigate and alleviate the impact.
The City may monitor for dissolved oxygen to determine the extent of the impact of the SSO and work
with regulatory agencies and environmental consultants to determine the best course of action for mitigation.
Command
Operations Planning Logistics
Finance & Administration
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 18
Waterway spill mitigation will require quick assessment including locating the spill source and entry
point(s) to the affected lagoon, planning an immediate stop to the overflow cause, damming with
sandbags, inflatable devices or with dirt (if possible) to stop or minimize waterway impact. In addition,
these actions may also include immediate use of pumping and/or vacuum trucks to remove sewage
from the overflow area and transporting it to an area for flow to the treatment plant and/or plugging
and high-lining a bypass around the spill site.
With regulatory agency concurrence, spills affecting waterways may be pumped back into the sewer
system for treatment. If this type of action is deemed necessary to protect downstream areas, care must
be taken in recovery procedures not to knowingly remove viable wildlife (i.e., fish). All recovered spill
must be reinstated into the treatment system at the most feasible point to allow for constant, safe and
smooth operation.
To mitigate for BOD in the water and to re-oxygenate, aeration can be performed using air compressors
and manifold weighted PVC piping with holes or by use of recirculating pumps. Recirculating pumps
can be used by withdrawing water from the impacted area and returning water back by spraying from
the pump.
5. PUBLIC ACCESS AND WARNING
Whenever there is a risk of contamination from a sewage spill to waters of the United States or an area
of public contact, the City of Carlsbad will initiate posting of the contaminated area with signs warning
of the contamination.
The intent of the posting is to protect the public from a public nuisance. Particular attention should be
paid to streets and to surface waters used for drinking, fishing, or body contact recreation.
5.1 Overflow Posting
The San Diego County Department of Health Services (DHS) is the responsible authority for directing
specific areas of closure and the posting and removal of advisory signs. In instances where the San
Diego County Department of Health Services is not readily available, the Incident Commander shall
direct the initial posting of contaminated water signs as necessary to prevent public contact with
discharged sewage or sewage contaminated surface waters pursuant to the following guidelines:
• Beaches. Signs shall be placed at 50 ft. intervals for a minimum of 600 feet on each side of the
point of ocean entry and at areas where the public might access the waterways.
• Agua Hedionda Lagoon. Overflows originating at the AHLS may require posting of the Agua
Hedionda Lagoon (both east and west of the overflow site) and the beaches north and south of
the Agua Hedionda Lagoon outlet and at areas where the public might access the waterways.
• Buena Vista Lagoon. Overflows originating at the BVPS may require posting of the Buena Vista
Lagoon and the beaches north and south of the lagoon outlet and at areas where the public might access the waterways.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 19
• A map of the Agua Hedionda and Buena Vista Lagoons are contained in Appendix D.
• Other Waters. If posting is required, the signs shall be placed at 50 ft. intervals for a minimum
of 600 feet on each side of the point of entry and at areas where the public might access the
waterways.
• The location and placement of all warning signs shall be drawn on a map and shall show the overflow site, the quarantine area, and the sign placement.
• The overflow site and quarantine area shall be inspected a minimum of twice daily in order to
replace and/or repair the signs and ensure that proper posting is being maintained. A Work
Order documenting each inspection must be completed.
• The contaminated water signs must be maintained until the San Diego County Department of Health Services makes the final decision as to when the signs may be removed. Only the San
Diego County Department of Health Services may authorize the removal of advisory warning signs. The decisions are typically based on background Coliform levels in the receiving waters
and current Total and Fecal Coliform levels at <1,000 Total and <200 Fecal Coliform per 100 ml.
• A sufficient inventory of English/Spanish contaminated water signs, stakes (minimum 100),
hammers, and warning tape (3 rolls) are to be maintained in storage.
Figure 2: Example contaminated water posting in English and Spanish.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 20
5.2 Media Communication Methods
Press releases, interviews and other releases of information, other than that mandated to the regulatory
agencies will be coordinated through the Communications Office at Carlsbad City Hall.
6. RECOVERY AND CLEANUP
All SSO sites will be thoroughly cleaned after an overflow event. No readily identifiable residue is to
remain.
6.1 Concrete Storm Drains and Appurtenances and Streets, Curb and Gutter
The following procedures will be followed for clean-up of spills into concrete lined storm drain catch
basins, under sidewalk drains, streets, curbs, gutters and other storm water conveyance structures:
• Position the combination truck adjacent to the contained sewage.
• Where practical, the area shall be thoroughly flushed and cleaned of any sewage using high
pressure water hose or combination truck. Solids and debris shall be flushed, picked-up and
hauled away. All flush water will be contained and collected for proper disposal.
• Ensure proper contact time for proper disinfection.
• Where sewage has resulted in ponding, pump the area dry and remove all residues.
• The SSO site shall be kept secure to prevent contact by members of the public until the site has been thoroughly cleaned.
6.2 Waterways
If sewage has discharged into a body of water that may contain fish or other aquatic life, do not disinfect.
Use the following procedures for clean-up of spills to waterways and contact appropriate agency for further instructions.
• The SSO site shall be kept secure to prevent contact by members of the public.
• Remove and dispose of all visible debris and use absorbent materials on surfaces where oils are
present.
• If possible, divert storm water flows around the affected area.
The City may also take the following actions for spills involving waterways:
• Diversion of polluted water to sewer system for treatment
• Removal of sediments
• Aeration of water
• Rescue/relocation of wildlife
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 21
6.3 Lawn/Landscaping
Following an SSO, use the San Diego County Environmental Health preferred clean up method as
follows:
• Use gloves, safety glasses
• Clean up affected area
• Capture all sewer overflow and wash-down water
• Cordon off affected area
• Allow 15-30 days natural sun bleaching if possible
6.4 Natural Vegetation/Environmentally Sensitive Areas
City crews will use the San Diego County Environmental Health preferred clean up method outlined above. In addition, crews will consult with Environmental Programs staff to ensure that any
environmentally sensitive vegetation and/or wildlife are considered during clean-up efforts.
6.5 Indoors
In the event that a spill is caused by the City, the City offers to bring in a restoration company at the City’s expense. The restoration company will generally follow the following procedures however, each
instance will vary. The restoration company will interview the affected party, check the moisture content in the drywall, remove drywall that has moisture, and remove and replace the carpet, padding and/or
any other type of flooring. A temporary ventilation system will be installed. A hygienist will inspect the final clean-up areas to ensure that areas are adequately disinfected and that areas are habitable.
In the event that the overflow is caused by a private party, the private party must initiate and pay for
clean-up efforts.
6.6 Private Lateral Spills
If response is to a private lateral spill, the property owner shall be notified of the City of Carlsbad Lateral Policy. The policy states that property owners are responsible for the maintenance of their laterals. If
the private spill has breached the public right-of-way, the clean-up procedures for the public right-of-way shall be performed as follows:
Use gloves, safety glasses
Washed down and remove heavy debris
Capture all wash down
Wash down area
Capture all wash down
Re-open when ready
Property owners will be billed for the City’s time and expense of cleaning the spill affecting the right-
of-way and beyond.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 22
7. WATER QUALITY MONITORING AND SAMPLING PROCEDURES
7.1 Mobilization
When an overflow has occurred, and has entered waters of the United States, the staff from the Health
Department Agency will assign a member to perform the sampling activities.
Wastewater Supervisor or Utilities Manager will notify Region 9 RWQCB of spill to surface
waters. RWQCB will provide instructions on posting and sampling locations. Utilities will create a map
of posting and sampling locations afterwards.
7.2 Sampling
7.2.1 DHS & DFG Coordination
When the sampling plan has been established, the Operations staff will review the draft sampling
plan with the San Diego County Department of Health Services (DHS) and the California Fish
and Game Department (DFG). If either of these two agencies requires any testing to be
conducted in addition to that being proposed in the draft sampling plan, the Operations staff
will incorporate these tests in the sampling plan.
7.2.2 Modification of Sampling Regime
The Operations staff will maintain daily contact with DHS and the DFG and will make any
findings available to those agencies as requested.
7.2.3 Sampling Procedure
• Samples must be taken upstream and downstream of any surface water.
• The sample location, time, and water temperature will need to be logged. A map of the
actual sample locations is created.
• The employee taking the samples will start at point of entry. When taking the sample,
submerge the bottle below the surface of the water with the cap on. Once the bottle is under the surface, remove the cap and fill the bottle. Gloves should be worn while sampling
to avoid infecting any open wounds.
• Spills should be analyzed, at a minimum for:
Ammonia Nitrogen,
Biochemical Oxygen Demand (BOD),
Dissolved Oxygen (DO),
Total Fecal Coliform,
Total Suspended Solids (TSS), and
Additional sampling requirements as imposed by the regulatory agencies.
Proper sample containers can be obtained from either Water Operations or Encina Wastewater
Authority.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 23
7.2.4 Outside Sampling Assistance
If the duration of the overflow event will be longer than a few hours, Wastewater staff may opt
to authorize outside sampling assistance. Wastewater staff will develop a long-term sampling
program based on the likely extent of the impact and the site location and conditions.
7.2.5 Sampling Duration
The Sampling regimen is to continue until a determination is made by the DHS that danger to
the public has been eliminated as evidenced by an appropriate notification by the DHS.
7.2.6 Summary Report
At the request of the City, the Encina Laboratory Supervisor may oversee the production and
verify the accuracy of all laboratory reports and present a final summary report to the Incident
Commander. The City will make this summary report available to the DHS, the DFG, or other
authorities upon request.
7.2.7 Records Retention
All sampling records must be retained for a period of five (5) years from the date of the sample,
measurement, report, or application.
8. INVESTIGATION AND OVERFLOW ESTIMATION
8.1 Overflow Quantification
Overflow quantification requires careful observation of discharges. Linear measurement of discharge
streams and flow velocities are essential in quantifying overflow volumes. Photo documentation of the
overflow event may also be necessary for quantification purposes. Additionally, the ADS flow metering
system can be employed to assist in accurate quantification of overflow volume. Official estimation of
overflow volume is the responsibility of Wastewater Management. An overflow estimation graphic as
well as reference calculations are in Appendix K.
8.2 Overflow Events Records
All City employees involved in an overflow event must be aware of the need to compile and report
pertinent information in a clear and logical format. An official “Overflow Events Record” shall be
maintained throughout the overflow event. The Overflow Events Record shall, at a minimum, provide
a chronological timeline documenting the following events:
• Event times (failure, discharge start and stop, etc.);
• Personnel on site;
• Arrival and departure times for all personnel;
• Equipment on site;
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 24
• Milestone events;
• Photo and video documentation;
• Overflow volume estimates;
• Discharge stream linear and velocity measurements;
• Arrival times of outside resources;
• Regulatory volume estimates (number, duration, and capacity of recovery pumps).
Spill Form Steps:
• Collect field information required by CIWQS (California Integrated Water Quality Systems);
including photos, which will determine accurate and defensible SSO volume estimates.
• Record statements with incident witnesses and emergency responders.
• Record/report all actions during event
• Perform a condition assessment of the section of sewer main that had the issue
• Report to appropriate regulatory agencies
A copy of the Spill Form can be found in Appendix I.
8.3 Post-SSO Review
All public sewer system spills are investigated in an attempt to prevent a reoccurrence. The steps that
are taken include: recording all actions taken during the event, collecting photo documentation,
interviewing any witnesses, reporting to the appropriate regulatory agencies, and performing a condition
assessment of the section of gravity sewer main that had the issue. For larger volume spills, an after-
Action Report or debrief is completed. All documentation is recorded and kept in the SSMP
Information Center in the Wastewater Utilities Manager office.
9. REGULATORY NOTIFICATION & REPORTING
California Water Resources Control Board (RWQB), Region 9 requires notification of all sanitary sewer
overflows (SSOs) regardless of quantity or ownership. All SSOs must be reported through the
California Integrated Water Quality System (CIWQS) online database. Spills are categorized into two
areas: Category 1 and Category 2 spill types.
9.1 Category 1 Spills
A Category 1 spill is any spill:
that results in a discharge to a drainage channel
that discharges to surface water or discharges to a storm drainpipe that was not fully captured
and returned to the sanitary sewer system.
of 1000 gallons or more.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 25
Spills that result in a discharge to a drainage channel and/or surface water require notification as soon
as possible, but not later than two (2) hours after becoming aware of the discharge. Notifications shall
be made to:
• The State Office of Emergency Services (1-800-852-7550 and through the CIWQS)
• The local Health Officer or Directors of Environmental Health with jurisdiction over affected
water bodies (Keith Kezer, 1-858-505-6700, 858-495-5579 and through the CIWQS); and
• The Regional Water Quality Control Board (Eric Becker, 1-619-521-3364 and through the
CIWQS, 1-858-495-5579)
A draft report through the California Integrated Water Quality System (CIWQS) online is required as soon as possible but no later than twenty-four (24) hours after becoming aware of the discharge to a
drainage channel or surface water, and a copy faxed to County of San Diego Environmental Health. If the online system is not available, the report can be e-mailed to: rb9sso@waterboards.ca.gov or sent by
fax to 619-516-1994.
Spills of 1000 gallons or more must be reported as soon as the City has knowledge of the discharge, reporting is possible, and reporting can be provided without substantially impeding cleanup or other
emergency measures.
9.2 Category 2 Spills
Category 2 spills include all other discharges of sewage resulting from a failure in the City of Carlsbad’s sanitary sewer system.
Category 2 spills must be reported through CIWQS within 30 days after the end of the calendar month
in which the SSO occurs. Full documentation of all responses shall be maintained for a minimum of one year. Any month without spills will be certified as a no spill month.
Any SSO that affects any drinking water requires an immediate call to the California Department of
Health Services – Drinking Water Program (CDHP-DWP. This notification is done through OES.
9.3 Private Lateral Spills
All private lateral sewage discharges will be reported through the CIWQS database. The online report must identify the sewage discharge as occurring and caused by a private lateral. The responsible private
party should also be identified, if known.
9.4 Staff Responsible for Reporting
City of Carlsbad Supervisors shall be responsible for making the initial “Draft” report to the online database within the time period specified. The Utilities Manager is responsible for certifying spill reports
within the specified time period as well as certifying that there were no SSOs for the designated month.
Samples of the online reporting forms are in Appendix J.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 26
10. EQUIPMENT
10.1 Wastewater Vehicles
The City of Carlsbad utilizes a full complement of vehicles and equipment to support daily needs,
routine maintenance and emergency situations. Vehicle selection is a combination of required and
economic benefits. Equipment selection is based on immediate and long-term need, rental availability
and cost. Vehicle and equipment parts listings follow in Table 2 and Table 3.
Table 2. Vehicle List
VEHICLE LIST
Revised 12.3.18
RESPONSIBLE
DEPARTMENT
VEHICLE
NO. VEHICLE TYPE
ASSIGNED TO
UTILITIES W279 PICKUP TRUCK , CREW CAB Wastewater Supervisor
UTILITIES U120 PICKUP TRUCK, SUPER CAB F150 Wastewater
UTILITIES U519 COMBINATION TRUCK, GAPVAX Wastewater
UTILITIES U149 PICKUP TRUCK F350 Wastewater
UTILITIES U183 PORTABLE DIESEL TRAILER GENERATOR Wastewater Supervisor
UTILITIES U190 PICKUP TRUCK F350 Wastewater
UTILITIES U213 PICKUP TRUCK F250 Wastewater
UTILITIES U214
PICKKUP TRUCK F250, TRAILER
JETTER Wastewater
UTILITIES U222 TRAILER E180 Wastewater
UTILITIES U229 FORD EXPLORER Wastewater Manager
UTILITIES U416 COMBINATION TRUCK, GAPVAX Wastewater
UTILITIES W1074 PICKUP TRUCK F250 Wastewater
UTILITIES W864 PICKUP TRUCK F250 Wastewater
UTILITIES W816 SKIP LOADER Wastewater
UTILITIES U124 PICKUP TRUCK, DUTY Water
UTILITIES U1035 FORD RANGER PICKUP Water
UTILITIES W020 FORD F550 1 TON DUMP TRUCK Water
UTILITIES W191 FORD F550 UTILITY TRUCK Water
UTILITIES W272 FORD F550 VALVE TRUCK Water
UTILITIES W497 FREIGHTLINER DUMP TRUCK Water
UTILITIES W540 FORD F800 DUMP TRUCK Water
UTILITIES W702
INTERNATIONAL 2674 10 YARD DUMP
TRUCK Water
UTILITIES W730 FORD F550 Water
UTILITIES W742 ZIEMAN 2347 BACKHOE TRAILER Water
UTILITIES W865 FORD F450 VALVE TRUCK Water
UTILITIES W1036 FORD F150 PICKUP TRUCK Water
UTILITIES U741 ZIEMAN 2347 BACKHOE TRAILER Water
UTILITIES U1013 FORD F150 WAREHOUSE UTILITY TRUCK Wastewater
UTILITIES U1063 CCTV TRUCK Wastewater
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 27
Table 3. Equipment and Parts Lists
Equipment List: Parts List: Combination Truck Parts List:
1 Trailer Mounted Jetter Various ABS Bends, Wyes and Caps,
4” to 6”
Eight Tiger Tails for Leader Hose
3 Small Honda
Generators
Various PVC Bends and Wyes, 4” to
12”
Various Hose Couplings
1 Small Honda Pump Various Rubber Couplings, 4” to 6” Warthog Cleaning Nozzle- Qty. 2
1 Small Lateral Cameras
w/Monitor
Spinner Nozzle- Qty. 1
Various Sewer Plugs, 4”
to 12”
Regular Cleaning Nozzle- Qty. 2
Sand Nozzle- Qty. 2
Penetrator Nozzle- Qty. 2
4 Skids, 6”
4 Skids, 8”
4 Skids, 10”
Various Specialty Nozzles
11. SAFETY
Whenever City personnel respond to a report of an overflow/spill, the most critical aspect of resolving
an incident of this nature is to safely and competently perform the actions as necessary. An important item to remember during a spill incident is that safe operations always take precedence over expediency
or short cuts.
Depending on the nature or cause of the overflow/spill, personnel may be performing mechanical or electrical repairs at a lift station, removing a mainline blockage with the combination truck or repairing
a damaged section of pipeline (force main). It is essential that all applicable safety procedures are followed so that the response does not cause the situation to escalate.
Typical responses may require personnel to implement the following types of safety procedures:
• Lockout/Tagout of equipment for repairs
• Confined Space entry procedures
• Traffic control procedures at site
• Equipment and/or vehicle operation
• Use of personnel protective equipment
If warranted, responsibilities for site safety may be delegated to personnel designated as the dedicated site Safety Officer.
City of Carlsbad / August 2019
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11.1 Traffic and Crowd Control
Upon arrival to an emergency overflow, the first responder shall assess the situation and its affect on
public safety, as well as spill mitigation. Use of a first responder’s vehicle, cones and caution tape will
be used initially to establish a safe area. Note that overflows may trigger underground utility failure
causing undermining beneath surface areas that may require extensive area closure.
Traffic control shall be set up using Cal/OSHA Construction Safety Order 1599, and Regional
standards for San Diego County. Initial set up concern shall be for work area safety.
The first responder should use emergency services, including police, fire, other utilities divisions and
municipalities to set up proper traffic control, if needed. The police department is well versed to handle
traffic situations, but the first responder should be prepared to notify the requested responders of the
anticipated needs and area to cover. As help arrives, time may be taken to create a more feasible traffic
plan including sign set up, delineation, arrow boards, and/or detours. Other affected agencies including
CAL Trans, County of San Diego, and neighboring agencies shall be notified as-soon-as possible.
As the situation allows, a zoning area consisting of the three major zones, hot, warm and cold zones
should be established, and divided by caution tape or similar means. The hot zone will be the immediate
work area where the actual repair work will take place, spoils will placed, and crews will have an
uninterrupted safe space. The warm zone will be an area large enough to stage equipment, materials
and other necessities. The cold zone will be used for debriefing, a rest area, other planning and
notification.
Management and access into these zones shall be managed by personnel on scene as well as using police
and fire personnel as required for safety and crowd control. Personnel into the hot should be as duties
require only. A media area will be designated by the Incident Commander when time permits, and will
remain out of the zone areas for safety reasons.
The traffic and crowd control used for the SSO situations can be summarized for most situations as
follows:
Small Spill (Up to 1,000 gallons)
• Setup traffic cones to direct traffic from spill area.
• Use staff personnel to control traffic and pedestrians.
Medium Spill (1,000 to 10,000 gallons)
• Perform lane closures as needed.
• Close any affected entrances or exits from all public and private facilities.
• Place proper signage for any lane closures including contaminated area signs.
• Use caution tape and barricades to protect pedestrians from contaminated area.
Large Spill (> 10,000 gallons)
• Access spill situation.
• Contact Mutual Aid contract cities as needed.
• Inform local police department of any law enforcement needed for road closures and traffic control.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 29
• Delegate the responsibilities to Mutual Aid team members to inform public of hazards also use
signage to inform public of potential hazards to public health and safety.
• Block public access to hazard using barricades, cones and caution tape.
These general traffic plans may have alteration needs due to location, high or low traffic, and
topography. When the work area is successfully set up, the traffic control area shall be re-assessed for
better traffic flow. Proper sign usage, transition area(s), and buffer zone(s) shall be utilized as space
allows. The traffic control set up of caution tape, cones, delineators and warning signs shall be routinely
checked to assure proper placement remains.
Traffic and pumping maps for the City’s lift stations are found in the Appendix E along with each of
the Station Spill Plans.
11.2 Safety Training Goals
The City of Carlsbad Wastewater Division’s objective for safety training is an effort of both CAL OSHA
requirements and department needs to maintain a safe work environment for its employees and the
public. The training will be based primarily on the crews’ daily duties working with wastewater as well
as general safety.
The following outline shows the basic training structure. These will be updated and reviewed as needs
and requirements change. The ultimate goal is to assure that the crews know and follow safe work
practice procedures.
11.2.1 Operational Safety/Sewer Main Maintenance Equipment
• Manufacturer’s equipment operation training; combination truck, forklift, backhoe
• Practice manufacturer’s equipment checklist procedure prior to and post operation,
including standards and procedures of the City of Carlsbad, Fleet Maintenance, DOT
mandated
• Use safe work practices for daily operations of mechanical equipment
• Sewer main cleaning techniques and nozzle selection
• Use and choice of proper Personal Protective Equipment in conjunction with
manufacturer’s recommendations
• Immediate reporting of vehicle damage and/or safety issues
11.2.2 General Safety/Protection Training
• First Aid/CPR and AED
• Confined space training (operational, regulations, rescue)
• Fall protection
• Trenching and Shoring operations, Competent Person required
• Personal Protection Equipment
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 30
11.2.3 General Safety/Driver
• Commercial driver training updates, CHP provides training
• Driver safety
• Defensive driver training
11.2.4 General Safety/Road Work
• Traffic control safety
• Roadway worker protection
• Flagger safety
• Dig Alert
11.2.5 General Safety/Control Safety
1. Lock out/Tag out 2. Main line bypass (high line, pass through, plugging)
3. Manhole maintenance & habitat 4. Pumping operations
5. Spill mitigation 6. Emergency standby procedures
7. Emergency evacuation/Fire drill 8. Sewer mapping
9. Storm water 10. Software operations
11. Low voltage training 12. FEMA National Incident Command System
11.2.6 General Safety/Other
• Annual JPA Spill Drill
• Annual SSO Response Procedures
• SDS/Global Harmonization
• Pesticide Training for Applicators
• Fire Extinguisher Training
• HAZWOPER 8 Hr Refresher
• Lifting Techniques
• Forklift Safety (new employees)
• IIPP Review
• Heat Illness Prevention
• Asbestos Awareness
• Chlorine Emergency Response
• Hearing Conservation/Protection
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 31
• Hearing Tests
• Respiratory Protection
• Emergency Evacuation
• Back Safety – Sprains and Strains Prevention
• Traffic Control
• Railroad Easement Training
• Bloodborne Pathogens
12. TRAINING
12.1 Reviewing and Amending the Overflow Emergency Response Plan
This Plan shall be reviewed and amended by the Utilities Manager as necessary following each annual refresher training session to ensure that the plan reflects current procedures.
12.2 Annual Training
The Utilities Manager or his/her designee shall also schedule training is designed to reveal planning
weaknesses, identify resource shortcomings, clarify roles and responsibilities, and improve performance, confidence and teamwork. The annual training shall consist of:
12.2.1 Tailgate Training
This session is to be conducted by Utility Supervisors for the purpose of familiarizing all staff
with the procedure.
12.2.2 Tabletop Exercise
This training exercise is intended to simulate an overflow event without the deployment equipment or personnel resources. The overflow event scenario is described by the facilitator
and various response actions are discussed. This session is to be conducted by the Utilities Manager.
12.2.3 Full Scale Functional Exercise
This training exercise is intended to simulate an overflow event. Equipment and personnel
deployment will be included in this drill. The City of Carlsbad will participate and coordinate with Encina staff in this exercise.
12.2.4 Exercise Debriefing
Following the tabletop and functional exercise, the Utilities Manager will submit a written report
summarizing the exercise and recommending any modifications needed to improve upon the response. The training report should also include the names of all participants, date and time
of the exercise.
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 32
13. CONTACT INFORMATION
CITY OF CARLSBAD MUNICIPAL WATER DISTRICT EMERGENCY TELEPHONE LIST
BY CATEGORY
WASTEWATER PERSONNEL CONTACTS
Don Wasko, Utilities Manager, Carlsbad Wastewater 760-802-4756 (cell) or 760-730-3367 (home)
Mike Lichtenfels,
Carlsbad Wastewater Operations
760-802-5763 (cell) or 760-505-7393 (home)
Jesse Castaneda, Sanitation Supervisor & Collections Supervisor
Carlsbad Wastewater Operations
760-802-8200 (cell) or 760-908-8648 (home)
Mike Trinci, Carlsbad Wastewater Operations 760-802-4776 (cell) or 760-812-7786 (home)
Omar Agraz,
Carlsbad Wastewater Operations
760-802-7648 (cell) or 760-429-5787 (home)
Duty Phone, Sanitation Operations Carlsbad Wastewater Operations 760-802-4694 (cell)
Kyle Wade, Carlsbad Wastewater Operations 760-802-5895 (cell) or 760-685-5423 (home)
James Somera,
Carlsbad Wastewater Collections
760-802-7703 (cell) or 442-999-0972 (home)
Matt Ream, Carlsbad Wastewater Collections 760-802-4661 (cell) or 760-539-6323 (home)
Tom Vega, Carlsbad Wastewater Collections 760-802-7873 (cell) or 760-430-9187 (home)
Oscar Torres, Carlsbad Wastewater Collections 760-802-5810 (cell) or 760-917-2336 (home)
Jeremy Matlock, Carlsbad Wastewater Collections 760-802-4647 (cell) or 951-757-5891 (home)
Morgan Fain, Carlsbad Wastewater Collections 760-802-5642 (cell) or 760-692-7828 (home)
Duty Phone, Sewer Collections
Carlsbad Wastewater Collections
760-802-4634 (cell)
ENGINEERING/CMI/CONSERVATION PERSONNEL CONTACTS
Valerie Airey- Carlsbad Municipal Project Manager 760-602-2764
Bailey, Mike – Carlsbad Transportation, Const.
Management & Inspections
760-802-8777 (cell)
Biskup, Mark – Carlsbad Utilities Engineering 760-803-0387 (cell)
Evans, Scott – Carlsbad Utilities, Engineering 760-603-7353 Ext 7353
Fairbanks, Michael – Carlsbad Utilities, Water Conservation 760-801-5489 (cell) or 760-420-3433 (home)
Gowen, Jennifer – Carlsbad Transportation, Const.
Management & Inspections
760-602-2780 Ext 7302
Grandberry, Shawnetta – Carlsbad Transportation, Const. Management & Inspections 760-802-7866 (cell)
Karczewski, Ela – Carlsbad, Utilities Engineering 760-802-8793 (cell)
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 33
Maashoff, John – Carlsbad Transportation, Streets
Superintendent
760-802-7807 (cell)
Willis, Dale – Carlsbad Transportation, Const.
Management & Inspections, Senior Office Specialist
760-602-2780 Ext 7301
Workman, Scott – Carlsbad Transportation, Const.
Management & Inspections
760-710-7609 (cell)
OUTSIDE DISTRICTS
LEUCADIA WASTEWATER DISTRICT
OCEANSIDE
OLIVENHAIN MUNICIPAL WATER
DISTRICT (OMWD)
VISTA IRRIGATION DISTRICT (VID)
VALLECITOS WATER DISTRICT (VWD)
VISTA
OUTSIDE UTILITIES
TIME WARNER CABLE
So. Cal GAS CO. ( R.R. RIGHT OF WAY)
SDG&E
TELEPHONE 760-753-0155
USA DIG ALERT 760-435-4500 or 760-435-5800
OUTSIDE AGENCIES 760-753-6466
ANIMAL SHELTER 760-597-3100
COUNTY HAZ-MAT 760-744-0460
ENCINA WASTEWATER AUTHORITY 760-726-1340
CRWQCB - ERIC BECKER
HEALTH DEPT.- KEITH KEZER 760-707-1000
OFFICE OF EMERGENCY SERVICES 1-800-640-9997
SAN DIEGO REGIONAL WATER QUALITY
CONTROL BOARD Trouble line 800-411-7343 or Mike Williams
(Service Manager) 858-654-1201 or 619-857-8391 (cell)
SAN DIEGO COUNTY HEALTH 611
AGUA HEDIONDA WATERSHED PRE-
HARVEST SANITATION UNIT 1-800-422-4133
CARLSBAD AQUAFARM
YMCA AQUATICSC AMP 1-619-278-9760
NRG/CABRILLO POWER PLANT/ENCINA
POWER STATION 1-858-505-6880
RAILROAD / COASTER
760-438-3941 Jeff Parks Lab Supervisor 760-801-
9113; Night Ops 760-801-9120
CALLAWAY GOLF, DRIVING RANGE 1-619-521-3364
FOUR SEASONS AVIARA GOLF COURSE 1-858-505-6700
CITY OF VISTA 800-852-7550
CITY OF ESCONDIDO Eric Becker – 619-521-3364 (phone) or 619-516-
1994 (fax)
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 34
AGUA HEDIONDA CONTACTS Keith Kezer (Prop 65 Coordinator) 858-495-5579 or
858-694-3670 (fax)
Communications Center 858-565-5255
Agua Hedionda Lift Station Sam Rieken – 510-412-4633
Greg Langolis 510-412-4635
Cabrillo Power Plant/Encina Power Station –Sheila
Henika
760-438-2444
Carlsbad Aquafarms – Tomas Grimm 760-942-9622 (Don)
County Dept. of Environmental Health – Keith
Kezer
Sheila Henika – 760-268-4018
Dept. of Health Services – Sam Rieken Emergency Train Stop 888-446-9715. Flagging
Requests, Ralph 760-231-4192 or Right of Way
Maintenance, Richard Walker – 760-966-6556
Hubbs Research Facility (North Side) 760-931-1771 or 760-525-7599
Snug Harbor Marina Kevin Kiensat, Superintendent – 760-431-0877 or
760-473-4355
Franco De Jesus, Asst. Superintendent – 760-431-
0877
YMCA Camp – Don & Mary Pattee 760-726-1340
Sam Rieken 760-839-4722
Dat Tran – PE Manager- DPH
Greg Langlois CA DPH 760-438-3941 (Encina Main Line)
Shellfish Grower Information Line 760-268-4000
EMERGENCY CONTRACTORS 760-438-2444
AFLOAT FLOOD SERVICE, INC 858-495-5579
SERVICE MASTER (Clean up Service) 510-412-4633
RAMADA SUITES CARLSBAD (Hotel with Kitchenette) 760-434-9501
RESIDENCE INN CARLSBAD 760-434-3089
ATLAS PUMPERS/ATLAS PUMPING 760-942-9622
JJ SEPTIC (PUMPERS) 510-412-4633 (work)
NRC – HAZMAT/ENVIRONMENTAL
SERVICES
916-449-5644 (work)
CANNON PACIFIC SERVICES – STREET SWEEPER 510-412-4635 (work)
AFFORDABLE PIPELINE SERVICES (GIL) 510-412-4644
DOWNSTREAM SERVICES
GENERAL CONTRACTORS 760-945-3170
T.C. CONSTRUCTION 800-677-6756
FILANC CONSTRUCTION 760-438-2285
NEWEST CONSTRUCTION CO. 760-431-9999
WELDING CONTRACTORS 760-480-7867/619-443-7867
DEAN'S 760-724-8511 (press 2 for emergency)
SCRAPE WELDING (SCW) 800-337-7455
RICK POST WELDING 760-471-9003
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 35
ELECTRICAL CONTRACTOR 619-818-6795 or 858-689-4000 (office)
SLOAN ELECTRIC 760-746-2544
BAYCITY ELECTRIC
NEAL ELECTRIC 1-619-448-4560
CONCRETE CONTRACTORS 760-941-7130
ESCONDIDO READY MIX (858) 537-0774
MARCON PRODUCTS*
VALLEY SHORT POUR 728-0292 or 728-9574
CONCRETE CUTTING CONTRACTORS 728-1308
AMERICAN 598-1186 or 801-8632 (Rick)
LAZERCUT
PIPE SUPPLIERS
745-5276 or Erik (760-805-3434) or Nick (619-515-
9691)
FERGUSON 619-938-8200
MARCON PRODUCTS* 858-513-2525
HD SUPPLY
PACIFIC PIPELINE SUPPLY 760-727-1733
SANCON ENGINEERING*** 760-744-3355
SOUTHWEST PIPELINE 760-732-1102
EQUIPMENT (Rental)
HAWTHORNE (Large Equipment) 760-802-5200
EL CAMINO RENTAL 760-497-9931
PUMPS and HAULERS
GODWIN PUMPS 951-452-9370 (Matt Wilkinson)
RAIN for RENT (large pumps) 760-744-3355
TRAFFIC CONTROL and TRENCH PLATES 760-744-5600
TREBOR SHORING RENTAL 760-471-7473
TRENCHPLATE RENTAL 1-714-891-2323 or 714-231-3630 or 1-714-412-3448
HI WAY SAFETY (310) 329-8717 or 8549
MATERIAL & PARTS SUPPLIERS
MISSION ELECTRIC SUPPLY, INC. 760-431-7000
SOUTH BAY FOUNDRY 760-438-7368 or MGR 644-3577 (Bill)
CED ELECTRIC
TOOL SUPPLIERS 951-317-8250 or 951-681-3636 or 858-679-9017
GRAINGER 1-951-653-2171
CROWN ACE HARDWARE
OTHER SUPPLIERS & CONTRACTORS 1-800-321-5285
DAY WIRELESS 1-800-350-7528 Susan Sayles
SANITATION STATION CONTRACTORS 760-745-2250 Jeff Dunn
ATLAS PUMPING
SPECIALIST 760-476-0111 or 951-676-6919
C&W DIVING SERVICES INC. 619-956-2780 or 909-383-1823
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 36
DIVE / CORR (HAND HOLE LINER
GROMMETS) 760-438-9691 or 858-451-7090
*sewer M/H and main suppliers 471-0400 or 1-800-225-5994
**sewer system suppliers 760-602-0400 or 714-962-4160
***sewer system & M/H rehabilitators REVISED 3/15
858-537-0709
1-619-443-7867
1-619-474-2700
562-439-8287
14. CONTACT INFORMATION AND ORGANIZATION CHART
CITY OF CARLSBAD MUNICIPAL WATER DISTRICT EMERGENCY TELEPHONE LIST
ALPHABETICAL
A
AFFORDABLE PIPELINE SERVICES 619-818-6795 or 858-689-4000 (office)
AFLOAT FLOOD SERVICE, INC 760-945-3170
Agraz, Omar Carlsbad Wastewater Operations 760-802-7648 (cell) or 760-295-9665 (home)
Agua Hedionda Lift Station 760-438-3941
AGUA HEDIONDA WATERSHED PRE-
HARVEST SANITATION UNIT
Sam Rieken – 510-412-4633
AMERICAN (CONCRETE CUTTING) 802-5200
ANIMAL SHELTER 1-619-278-9760
Arndt, Casey – Carlsbad Transportation, Const. Management & Inspections 760-688-5150 (cell)
ATLAS PUMP TRUCKS 1-619-443-7867
ATLAS PUMPERS 760-480-7867
B
BAYCITY ELECTRIC 619-938-8200
Biskup, Mark – Carlsbad Utilities,
Engineering
760-803-0387 (cell)
C
C&W DIVING SERVICES INC. 1-619-474-2700
Cabrillo Power Plant/Encina Power Station
–Sheila Henika
760-268-4000
CALLAWAY GOLF, DRIVING RANGE 760-931-1771 or 760-525-7599
CANNON PACIFIC SERVICES – STREET SWEEPER 760-471-9003
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 37
Carlsbad Aquafarms – Tomas Grimm 760-438-2444
CARLSBAD AQUAFORM 760-438-2444
Castaneda, Jesse, Sanitation/Collections
Supervisor
Carlsbad Wastewater Operations
760-802-8200 (cell) or 760-908-8648 (home)
CED ELECTRIC 760-438-9691 or 858-451-7090
CITY OF CARLSBAD 760-438-2722
CITY OF ESCONDIDO 760-839-4722
CITY OF OCEANSIDE 760-966-7860
CITY OF VISTA 760-726-1340 or 858-756-3006
Clavier, Grant – Carlsbad Transportation,
Const. Management & Inspections
760-802-8783 (cell)
County Dept. of Environmental Health –
Keith Kezer
858-495-5579
COUNTY HAZ-MAT 1-858-505-6880
CRWQCB - ERIC BECKER 1-619-521-3364
D
DAY WIRELESS 858-537-0709
DEAN'S WELDING 728-0292 or 728-9574
Dept. of Health Services – Sam Rieken 510-412-4633
DIVE / CORR(HAND HOLE LINER
GROMMETS)
1-562-439-8287
Dobbs, Clay - Carlsbad Supervisor, Storm
Drain Maintenance
760-802-4773 (cell)
DOWNSTREAM SERVICES 760-746-2544
Duty Phone,
Carlsbad Wastewater Operations
760-802-4790 (cell)
Duty Phone,
Carlsbad Wastewater Collections
760-802-4634 (cell)
Duty Phone
Carlsbad Storm Drain Maintenance
760-802-4634
E
EL CAMINO EQUIPMENT RENTAL 760-438-7368 or MGR 760-644-3577 (Bill)
ENCINA WASTEWATER AUTHORITY 760-438-3941 Jeff Parks Lab Supervisor 801-9113; Night
Ops 760-801-9120
Encina Wastewater Authority 760-438-3941
ESCONDIDO READY MIX
(CONCRETE CONTRACTOR)
760-727-1733
F
Fairbanks, Michael – Carlsbad Utilities,
Water Conservation
760-801-5489 (cell)
Ferrell, Ian, Carlsbad Wastewater Collections 760-579-8462 (cell), 760-579-8368 (home)
FILANC CONSTRUCTION 760-941-7130
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 38
FOUR SEASONS AVIARA GOLF
COURSE
Kevin Kiensat, Superintendent – 760-431-0877 or 760-
473-4355
Franco De Jesus, Assistant Superintendent – 760-431-
0877
G
GODWIN PUMPS 951-317-8250 or 951-681-3636 or 858-679-9017
Goggin, Danny – Carlsbad Storm Drain
Maintenance
760-497-4303 (cell) `
Gowen, Jennifer – Carlsbad Transportation,
Const. Management & Inspections
760-602-2780 Ext 7302
GRAINGER (TOOL SUPPLIERS) 760-471-0400 or 1-800-225-5994
H
HAWTHORNE (Large Equipment Rental) 760-431-7000
HD SUPPLY (PIPE SUPPLIER) 760-744-5600
HEALTH DEPT. – KEITH KEZER 1-858-505-6700
Howard, Sherri – Carlsbad Utilities,
Engineering
760-602-2756
Hoyo, Joshua – Carlsbad Wastewater
Collections
760-801-4643 (cell) or 760-708-8362 (home)
HUBBARD CONTRACTORS 760-736-3241 or JASON 420-5350
Hubbs Research Facility (North Side) 760-434-9501
J
JJ SEPTIC (PUMPERS) 760-724-8511
Jordan, Jay – Carlsbad Transportation,
Const. Management & Inspections
760-802-8787 (cell)
Juchniewicz, Joanne – Carlsbad
Transportation, Engineering
760-602-2775
K
Karczewski, Ela – Carlsbad , Engineering 760-802-8793 (cell)
L
LAZERCUT (CONCRETE CUTTING) 760-497-9931
LEUCADIA WASTEWATER DISTRICT 760-753-0155
Lichtenfels, Mike
Carlsbad Wastewater Operations
760-802-5763 (cell) or 760-505-7393 (home)
M
Maashoff, John – Carlsbad Transportation,
Streets Superintendent
760-802-7807 (cell)
MARCON PRODUCTS* 760-744-3355
MARCON PRODUCTS* (CONCRETE
CONTRACTOR)
760-744-3355 or 1-619-214-8938 or 1-619-465-7682
Martinez, Eric
Carlsbad Storm Drain Maintenance
760-801-6548 (cell)
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 39
McMahon, Joe – Carlsbad Transportation,
Const. Management & Inspections
760-802-8785
Miles, Brandon – Carlsbad Transportation,
Engineering
760-602-2745
MISSION ELECTRIC 434-1717 or 632-9663
N
NEAL ELECTRIC 858-513-2525
NRC – HAZMAT/ENVIRONMENTAL
SERVICES 800-337-7455
NRG/CABRILLO POWER PLANT Sheila Henika – 760-268-4018 or 760-268-4000
O
OCEANSIDE (DISTRICT) 760-435-4500 or 760-435-5800
OFFICE OF EMERGENCY SERVICES 800-852-7550
P
PACIFIC PIPELINE SUPPLY 760-471-7473 or CRAIG'S CELL 760-644-9253
Plonka, Kirsten – Carlsbad , Engineering 760-331-8825 (cell)
R
RAILROAD / COASTER Dispatch 888-446-9716 or Emergency Train Stop 888-
446-9715. Flagging Requests, Ed Singer or Right of Way Maintenance, Richard Walker – 760-966-6556
RAIN for RENT (Large Pumps) 1-909-653-2171
RAMADA SUITES CARLSBAD (Hotel with
Kitchenette) 760-438-2285
Ream, Matt – Carlsbad Wastewater Collections 760-802-4661 (cell) or 760-539-6323 (home)
RESIDENCE INN CARLSBAD 760-431-9999
RICK POST WELDING 598-1186 or 1-619-999-4241
Rieken, Sam 510-412-4633
S
So.Cal. GAS CO. ( R.R. RIGHT OF WAY) 1-800-640-9997
SAN DIEGO COUNTY HEALTH Keith Kezer (Prop 65 Coordinator) 858-495-5579 or 858-694-3670 (fax)
Communications Center 858-565-5255
SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD Eric Becker – 619-521-3364 (phone) or 619-516-1994 (fax)
SANCON ENGINEERING*** (PIPE SUPPLIER) 1-714-891-2323 or 757-8893 or 1-714-806-4408
SCRAPE WELDING 728-1308 or 1-619-969-1550 or 1-619-969-1547
SDG&E 438-6200 or Trouble line 800-411-7343 or Mike
Williams 858-654-1201
SERVICE MASTER (Clean up Service) 800-376-6677
Shellfish Grower Information Line (GIL) 510-412-4644
SLIVNICK MACHINE (SANITATION STATION CONTRACTORS) 744-8692 or 630-0744 or 1-619-977-8735
SLOAN ELECTRIC 745-5276 or 1-619-239-5174(Steve Watson)
City of Carlsbad / August 2019
Overflow Emergency Response Plan – Page 40
Smith, Terry – Carlsbad Utilities,
Engineering
760-944-3538 or 760-613-8205 (cell)
Snug Harbor Marina 760-434-3089
Somera, James 760-802-7703 (cell)
SOUTH BAY FOUNDRY 474-8481 or 1-619-582-4775 or 1-619-475-8674
SOUTH COAST MATERIALS 729-2090 or 723-1247 or 599-0244
Stankavich, Kim – Carlsbad Transportation,
Const. Management & Inspections
760-434-2937
STAR BUILDERS SUPPLY 744-3240 or 746-1976 or 1-619-418-3180
Steele, Daniel – Carlsbad Wastewater
Collections
760-802-5810 (cell) or 760-317-0917 (home)
Supervisor - Carlsbad Wastewater
Collections
760-802-8200 (cell)
T
T.C. CONSTRUCTION 1-619-448-4560
TELEPHONE 611
TIME WARNER CABLE 760-707-1000
TRENCHPLATE RENTAL 800-350-7528 Susan Sayles
Trinci, Mike
Carlsbad Wastewater Operations
760-802-4776 (cell) or 760-812-7786 (home)
U
USA DIG ALERT 1-800-422-4133
V
V.I.D. (VISTA IRRIGATION DISTRICT) 760-597-3100
VALLECITOS (DISTRICT) 760-744-0460
VALLEY SHORT POUR (CONCRETE
CONTRACTOR)
760-732-1102
Vaughan, Pat – Carlsbad Transportation,
Const. Management & Inspections
760-612-7484 (cell)
Vega, Tom
Carlsbad Wastewater Collections
760-802-7873 (cell) or 760-430-9187 (home)
VISTA (DISTRICT) 760-726-1340
W
Wasko, Don, Utilities Manager,
Carlsbad Utilities, Wastewater
760-802-4756 (cell) or 760-730-3367 (home)
Y
YMCA AQUATICS CAMP 760-942-9622 (Don)
YMCA Camp – Don & Mary Pattee 760-942-9622
Appendix A
State Water Resources Control
Board Order No. 2006-0003-
DWQ
Appendix B
State Water Resources Control
Board Order No. 2013-0058-
EXEC
STATE OF CALIFORNIA WATER RESOURCES CONTROL BOARD
ORDER NO. WQ 2013-0058-EXEC
AMENDING MONITORING AND REPORTING PROGRAM FOR STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS FOR SANITARY SEWER SYSTEMS
The State of California, Water Resources Control Board (hereafter State Water Board) finds:
1. The State Water Board is authorized to prescribe statewide general Waste Discharge
Requirements (WDRs) for categories of discharges that involve the same or similar operations
and the same or similar types of waste pursuant to Water Code section 13263(1).
2. Water Code section 13193 et seq. requlres the Regional Water Quality Control Boards (Regional
Water Boards} and the State Water Board (collectively, the Water Boards) to gather Sanitary
Sewer Overflow (SSO) information and make this information available to the public, including but
not limited to, SSO cause, estimated volume, locatton, date, time, duration, whether or not the
SSO reached or may have reached waters of the state, response and corrective action taken, and
an enrollee's contact information for each SSO event. An enrollee is defined as the public entity
having legal authority over the operation and maintenance of, or capital improvements to, a
sanitary sewer system greater than one mile in length.
3. Water Code section 13271, et seq. requires notification to the California Office of Emergency
Services (Cal OES), formerly the California Emergency Management Agency, for certain
unauthorized discharges, including SSOs.
4. On May 2, 2006, the State Water Board adopted Order 2006-0003-0WQ, "Statewide Waste
Discharge Requirements for Sanitary Sewer Systems"1 (hereafter SSS WDRs) to comply with
Water Code section 13193 and to establish the framework for the statewide SSO Reduction
Program.
5. Subsection G.2 of the SSS WDRs and the Monitoring and Reporting Program (MRP) provide that the Executive Director may modify the terms of the MRP at any time.
6. On February 20, 2008, the State Water Board Executive Director adopted a revised MRP for the SSS WDRs to rectify early notification deficiencies and ensure that first responders are notified in
a timely manner of SSOs discharged into waters of the state.
7. When notified of an SSO that reaches a drainage cha.nnel or surface water of the state, Cal OES,
pursuant to Water Code section 13271(a)(3), forwards the SSO notification information2 to local government agencies and first responders including local public health officials and the applicable
Regional Water Board. Receipt of notifications for a single SSO event from both the SSO reporter
1 Available for download at: http://www.waterboards,ca.gov/board decisions/adopted orders/water guality/2006/wgo/wgo2006 0003.pdf
2 Cat OES Hazardous Materials Spill Reports available Online at
http://w3.calema.ca.gov/op_erationallmalhaz.nsf/$defaultview and http://w3.calema.ca.gov:/operational/ma1haz.nsf
Monitoring and Reporting Program Order No. WQ 2013-0058-EXEC Page 2of2
Statewide Waste Discharge Requirements for Sanitary Sewer Systems
and Cal OES is duplicative. To address this, the SSO notification requirements added by the
February 20, 2008 MRP revision are being removed in this MRP revision.
8. In the February 28, 2008 Memorandum of Agreement between the State Water Board and the
California Water and Environment Association (CWEA), the State Water Board committed to re•
designing the CIWQS3 Online SSO Database to allow "evene based SSO reporting versus the
original "location" based reporting. Revisions to this MRP and accompanying changes to the
CIWQS Online SSO Database will implement this change by allowing for multiple SSO
appearance points to be associated with each SSO event caused by a single asset failure.
9. Based on stakeholder input and Water Board staff experience implementing the SSO Reduction
Program, SSO categories have been revised in this MRP. In the prior version of the MRP, SSOs
have been categorized as Category 1 or Category 2. This MRP implements changes to SSO
categories by adding a Category 3 SSO type. This change will improve data management to
further assist Water Board staff with evaluation of high threat and low threat SSOs by placing
them in unique categories (i.e., Category 1 and Category 3, respectively). This change wrll also
assist enrollees in identifying SSOs that require Cal OES notification.
10. Based on over six years of implementation of the SSS WDRs., the State Water Board concludes
that the February 20, 2008 MRP must be updated to better advance the SSO Reduction Program4
objectives, assess compliance, and enforce the requirements of the SSS WDRs.
IT IS HEREBY ORDERED THAT:
Pursuant to the authority delegated by Water Code section 13267(f), Resolution 2002-0104, and
Order 2006-0003 DWQ, the MRP for the SSS WDRs (Order 2006-0003-DWQ) is hereby amended as shown in Attachment A and shall be effective on September 9, 2013.
Date
3 California Integrated Water Quatity System (CIWQS) publicly available at http:l/www.waterboards.ca.gov/ciwgs/publicreports.shtml 4 Statewide Sanitary Sewer Overflow Reduction Program informatitm is available at: http:/lwww.waterboards.ca.gov/water issues/programs/sso/
ATTACHMENT A
STATE WATER RESOURCES CONTROL BOARD
ORDER NO. WQ 2013-0058-EXEC
AMENDING MONITORING AND REPORTING PROGRAM
FOR
STATEWIDE GENERAL WASTE DISCHARGE REQUIREMENTS FOR
SANITARY SEWER SYSTEMS
This Monitoring and Reporting Program (MRP) establishes monitoring, record keeping, reporting and public notification requirements for Order 2006-0003-DWQ, "Statewide General Waste Discharge Requirements for Sanitary Sewer Systems" (SSS WDRs). This MRP shall be effective from September 9, 2013 until it is rescinded. The Executive Director may make revisions to this MRP at any time. These revisions may include a reduction or increase in the monitoring and reporting requirements. All site specific records and data developed pursuant to the SSS WDRs and this MRP shall be complete, accurate, and justified by evidence maintained by the enrollee. Failure to comply with this MRP may
subject an enrollee to civil liabilities of up to $5,000 a day per violation pursuant to Water Code section
13350; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney
General for judicial civil enforcement. The State Water Resources Control Board (State Water Board)
reserves the right to take any further enforcement action authorized by law.
A. SUMMARY OF MRP REQUIREMENTS
Table 1 - Spill Categories and Definitions
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, ,.. . ,•
Table 2 - Notification, Reporting, Monitoring, and Record Keeping Requirements
• Category 1SSO: Submit draft report within three
business days of becoming aware of the SSO and
certify within 15 calendar days of SSO end date.
- • Category,2 SSO: Submit draft report within 3
business days of becoming aware of the SSO and
certify within 15 calendar days ofthe SSO end
date.
• · Category 3 SSO: Submit certified report within
30,calendar days ofthe end of month in which SSO the. o ccurred.
• sso Tet hni c T Report: S}Jbmity;;ithin45 calendar days after the end date of any Category
U3$0 in which 50,000 ggJJons er greater gre spiJled ' tO$u rface Wpfers.
"No Spill" Certification: Certify that no $SQs occurr q yvithin 30 calendar days of the end of the
month or;Jtreportirig quarterly, the qu;:3rter ip
woich no SSOs occurre.c;l.
• Collection System Ouestionnaire: Update and
certify every 12 months.
Enter data into the CIWQS Online SSO Database
· (htt p://ciwqs .waterboards.ca.gov/), certified by enrollee's Legally Responsible Official(s).
•···r·\·tf{·:1":',._. ; =::... :
_,·,\;.,.,. ·,.,
• R; ;rd docurnenting Sani ta ry-Sewer Management Plan (SSMP) impler:nentation and
changes/updates to the SSMP.
• R$.cords to document Water Quality Monitoring for SSOs of50,000 gallons or greater spilled to surf;:lpe W;:lters,
• Collection system telemetry records if relied upon
to document and/or estimate SSOVolume.
Self-maintained records shall be
available during inspections or
upon request.
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Statewide Waste Discharge Requirements for Sanitary Sewer Systems Page 3 of 11
B. NOTIFICATION REQUIREMENTS
Although Regional Water Quality Control Boards (Regional Water Boards) and the State
Water Board (collectively, the Water Boards) staff do not have duties as first responders , this
MRP is an appropriate mechanism to ensure that the agencies that have first responder
duties are notified in a timely manner in order to protect public health and beneficial uses.
1. For any Category 1 SSO greater than or equal to 1,000 gallons that results in a discharge to a
surface water or spilled in a location where it probably will be discharged to surface water,
either directly or by way of a drainage channel or MS4, the enrollee shall, as soon as
possible, but not later than two (2) hours after (A) the enrollee has knowledge of the
discharge, (B) notification is possible, and (C) notification can be provided without
substantially impeding cleanup or other emergency measures, notify the Cal OES and obtain
a notification control number.
2. To satisfy notification requirements for each applicable SSO, the enrollee shall provide the information requested by Cal OES before receiving a control number. Spill information requested by Cal OES may include:
i. Name of person notifying Cal OES and direct return phone number.
ii. Estimated SSO volume discharged (gallons).
iii. If ongoing, estimated SSO discharge rate (gallons per minute).
iv. SSO Incident Description:
a. Brief narrative.
b. On-scene point of contact for additional information (name and cell phone number).
c. Date and time enrollee became aware of the SSO.
d. Name of sanitary sewer system agency causing the SSO.
e. SSO cause (if known).
v. Indication of whether the SSO has been contained.
vi. Indication of whether surface water is impacted.
vii. Name of surface water impacted by the SSO, if applicable.
viii. Indication of whether a drinking water supply is or may be impacted by the SSO.
ix. Any other known SSO impacts.
x. SSO incident location (address, city, state, and zip code).
3. Following the initial notification to Cal OES and until such time that an enrollee certifies the
SSO report in the CIWQS Online SSO Database, the enrollee shall provide updates to Cal
OES regarding substantial changes to the estimated volume of untreated or partially treated
sewage discharged and any substantial change(s) to known impact(s).
4. PLSDs: The enrollee is strongly encouraged to notify Cal OES of discharges greater than or equal to 1,000 gallons of untreated or partially treated wastewater that result or may result in a discharge to surface water resulting from failures or flow conditions within a privately owned sewer lateral or from other private sewer asset(s) if the enrollee becomes aware of the PLSD.
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C. REPORTING REQUIREMENTS
1. CIWQS Online SSO Database Account: All enrollees shall obtain a CIWQS Online SSO
Database account and receive a "Username" and "Password" by registering through CIWQS.
These accounts allow controlled and secure entry into the CIWQS Online SSO Database.
2. SSO Mandatory Reporting Information: For reporting purposes, if one SSO event results
in multiple appl:larance points in a sewer system asset, the enrollee shall complete one SSO
report in the CIWQS Online SSO Database which includes the GPS coordinates for the
location of the SSO appearance point closest to the failure point, blockage or location of the
flow condition that caused the SSO, and provide descriptions of the locations of all other
discharge points associated with the SSO event.
3. SSO Categories
i. Category 1 - Discharges of untreated or partially treated wastewater of any volume
resulting from an enrollee's sanitary sewer system failure or flow condition that:
a. Reach surface water and/or reach a drainage channel tributary to a surface water; or
b. Reach a MS4 and are not fully captured and returned to the sanitary sewer system or
not otherwise captured and disposed of properly. Any volume of wastewater not recovered from the MS4 is considered to have reached surface water unless the storm drain system discharges to a dedicated storm water or groundwater infiltration
basin (e.g., infiltration pit, percolation pond).
ii. Category 2 - Discharges of untreated or partially treated wastewater greater than or
equal to 1,000 gallons resulting from an enrollee's sanitary sewer system failure or flow
condition that does not reach a surface water, a drainage channel, or the MS4 unless the
entire SSO volume discharged to the storm drain system is fully recovered and disposed
of properly.
iii. Category 3 - All other discharges of untreated or partially treated wastewater resulting
from an enrollee's sanitary sewer system failure or flow condition.
4. Sanitary Sewer Overflow Reporting to CIWQS - Timeframes
i. Category 1 and Category 2 SSOs - All SSOs that meet the above criteria for Category 1 or Category 2 SSOs shall be reported to the CIWQS Online SSO Database:
a. Draft reports for Category 1 and Category 2 SSOs shall be submitted to the CIWQS Online SSO Database within three (3) business days of the enrollee becoming aware of the SSO. Minimum information that shall be reported in a draft Category 1 SSO report shall include all information identified in section 8.i.a. below. Minimum
information that shall be reported in a Category 2 SSO draft report shall include all
information identified in section 8.i.c below.
b. A final Category 1 or Category 2 SSO report shall be certified through the CIWQS
Online SSO Database within 15 calendar days of the end date of the SSO. Minimum
information that shall be certified in the final Category 1 SSO report shall include all
information identified in section 8.i.b below. Minimum information that shall be
certified in a final Category 2 SSO report shall include all information identified in
section 8.i.d below.
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ii. Category 3 SSOs - All SSOs that meet the above criteria for Category 3 SSOs shall be
reported to the CIWQS Online SSO Database and certified within 30 calendar days after
the end of the calendar month in which the SSO occurs (e.g., all Category 3 SSOs occurring in the month of February shall be entered into the database and certified by March 30). Minimum information that shall be certified in a final Category 3 SSO report shall include all information identified in section 8.i.e below.
iii. "No Spill" Certification - If there are no SSOs during the calendar month, the enrollee
shall either 1) certify, within 30 calendar days after the end of each calendar month, a "No
Spill" certification statement in the CIWQS Online SSO Database certifying that there
were no SSOs for the designated month, or 2) certify, quarterly within 30 calendar days
after the end of each quarter, "No Spill" certification statements in the CIWQS Online SSO
Database certifying that there were no SSOs for each month in the quarter being reported
on. For quarterly reporting, the quarters are Q1 - January/ February/ March, Q2 -
April/May/June, Q3 - July/AugusUSeptember, and Q4 - October/November/December.
If there are no SSOs during a calendar month but the enrollee reported a PLSD, the
enrollee shall still certify a "No Spill" certification statement for that month.
iv. Amended SSO Reports - The enrollee may update or add additional information to a
certified SSO report within 120 calendar days after the SSO end date by amending the
report or by adding an attachment to the SSO report in the CIWQS Online SSO Database.
SSO reports certified in the CIWQS Online SSO Database prior to the adoption date of
this MRP may only be amended up to 120 days after the effective date of this MRP. After
120 days, the enrollee may contact the SSO Program Manager to request to amend an
SSO report if the enrollee also submits justification for why the additional information was not available prior to the end of the 120 days.
5. SSO Technical Report
The enrollee shall submit an SSO Technical Report in the CIWQS Online SSO Database
within 45 calendar days of the SSO end date for any SSO in which 50,000 gallons or greater are spilled to surface waters. This report, which does not preclude the Water Boards from requiring more detailed analyses if requested, shall include at a minimum, the following:
i. Causes and Circumstances of the SSO:
a. Complete and detailed explanation of how and when the SSO was discovered.
b. Diagram showing the SSO failure point, appearance point(s), and final destination(s).
c. Detailed description of the methodology employed and available data used to
calculate the volume of the SSO and, if applicable, the SSO volume recovered.
d. Detailed description of the cause(s) of the SSO.
e. Copies of original field crew records used to document the SSO.
f. Historical maintenance records for the failure location.
ii. Enrollee's Response to SSO:
a. Chronological narrative description of all actions taken by enrollee to terminate the
spill.
b. Explanation of how the SSMP Overflow Emergency Response plan was implemented
to respond to and mitigate the SSO.
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c. Final corrective action(s) completed and/or planned to be completed, including a
schedule for actions not yet completed.
iii. Water Quality Monitoring:
a. Description of all water quality sampling activities conducted including analytical
results and evaluation of the results.
b. Detailed location map illustrating all water quality sampling points. 6. PLSDs
Discharges of untreated or partially treated wastewater resulting from blockages or other
problems within a privately owned sewer lateral connected to the enrollee's sanitary sewer system or from other private sanitary sewer system assets may be voluntarily reported to the CIWQS Online SSO Database.
i. The enrollee is also encouraged to provide notification to Cal OES per section B above when a PLSD greater than or equal to 1,000 gallons has or may result in a discharge to surface water. For any PLSD greater than or equal to 1,000 gallons regardless of the spill
destination, the enrollee is also encouraged to file a spill report as required by Health and
Safety Code section 5410 et. seq. and Water Code section 13271, or notify the
responsible party that notification and reporting should be completed as specified above
and required by State law.
ii. If a PLSD is recorded in the CIWQS Online SSO Database, the enrollee must identify the
sewage discharge as occurring and caused by a private sanitary sewer system asset and
should identify a responsible party (other than the enrollee), if known. Certification of
PLSD reports by enrollees is not required.
7. CIWQS Online SSO Database Unavailability
In the event that the CIWQS Online SSO Database is not available, the enrollee must fax or
e-mail all required information to the appropriate Regional Water Board office in accordance
with the time schedules identified herein. In such event, the enrollee must also enter all
required information into the CIWQS Online SSO Database when the database becomes
available.
8. Mandatory Information to be Included in CIWQS Online SSO Reporting
All enrollees shall obtain a CIWQS Online SSO Database account and receive a "Username"
and "Password" by registering through CIWQS which can be reached at
CIWQS@waterboards.ca.qov or by calling (866) 792-4977, M-F, 8 A.M. to 5 P.M. These accounts will allow controlled and secure entry into the CIWQS Online SSO Database.
Additionally, within thirty (30) days of initial enrollment and prior to recording SSOs into the
CIWQS Online SSO Database, all enrollees must complete a Collection System
Questionnaire (Questionnaire). The Questionnaire shall be updated at least once every 12
months.
i. SSO Reports
At a minimum, the following mandatory information shall be reported prior to finalizing and
certifying an SSO report for each category of SSO:
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a. Draft Category 1 S50s: At a minimum, the following mandatory information shall be reported for a draft Category 1 SSO report: ·
1. SSO Contact Information: Name and telephone number of enrollee contact person who can answer specific questions about the SSO being reported.
2. SSO Location Name.
3. Location of the overflow event (SSO) by entering GPS coordinates. If a single
overflow event results in multiple appearance points, provide GPS coordinates for
the appearance point closest to the failure point and describe each additional
appearance point in the SSO appearance point explanation field.
4. Whether or not the SSO reached surface water, a drainage channel, or entered and was discharged from a drainage structure.
5. Whether or not the SSO reached a municipal separate storm drain system.
6. Whether or not the total SSO volume that reached a municipal separate storm
drain system was fully recovered.
7. Estimate of the SSO volume, inclusive of all discharge point(s).
8. Estimate of the SSO volume that reached surface water, a drainage channel, or was not recovered from a storm drain.
9. Estimate of the SSO volume recovered (if applicable).
10. Number of SSO appearance point(s).
11. Description and location of SSO appearance point(s). If a single sanitary sewer system failure results in multiple SSO appearance points, each appearance point must be described.
12. SSO start date and time.
13. Date and time the enrollee was notified of, or self-discovered, the SSO.
14. Estimated operator arrival time.
15. For spills greater than or equal to 1,000 gallons, the date and time Cal OES was called.
16. For spills greater than or equal to 1,000 gallons, the Cal OES control number.
b. Certified Category 1 S50s: At a minimum, the following mandatory information shall
be reported for a certified Category 1 SSO report, in addition to all fields in section
8.i.a:
1. Description of SSO destination(s.)
2. SSO end date and time.
3. SSO causes (mainline blockage, roots, etc.).
4. SSO failure point (main, lateral, etc.).
5. Whether or not the spill was associated with a storm event.
6. Description of spill corrective action, including steps planned or taken to reduce,
eliminate, and prevent reoccurrence of the overflow; and a schedule of major
milestones for those steps.
7. Description of spill response activities.
8. Spill response completion date.
9. Whether or not there is an ongoing investigation, the reasons for the investigation
and the expected date of completion.
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10. Whether or not a beach closure occurred or may have occurred as a result of the sso.
11. Whether or not health warnings were posted as a result of the SSO.
12. . Name of beach(es) closed and/or impacted. If no beach was impacted, NA shall be selected.
13. Name of surface water(s) impacted.
14. If water quality samples were collected, identify parameters the water quality samples were analyzed for. If no samples were taken, NA shall be selected.
15. If water quality samples were taken, identify which regulatory agencies received sample results (if applicable). If no samples were taken, NA shall be selected.
16. Description of methodology(ies) and type of data relied upon for estimations of the SSO volume discharged and recovered.
17. SSO Certification: Upon SSO Certification, the CIWQS Online SSO Database will
issue a final SSO identification (ID) number.
c. Draft Category 2 SSOs: At a minimum, the following mandatory information shall be reported for a draft Category 2 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO.
d. Certified Category 2 SSOs: At a minimum, the following mandatory information shall
be reported for a certified Category 2 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO and Items 1-9, and 17 in section 8.i.b above for Certified Category 1 SSO.
e. Certified Category 3 SSOs: At a minimum, the following mandatory information shall
be reported for a certified Category 3 SSO report:
1. Items 1-14 in section 8.i.a above for Draft Category 1 SSO and Items 1-5, and 17
in section 8.i.b above for Certified Category 1 SSO.
ii. Reporting SSOs to Other Regulatory Agencies
These reporting requirements do not preclude an enrollee from reporting SSOs to other
regulatory agencies pursuant to state law. In addition, these reporting requirements do
not replace other Regional Water Board notification and reporting requirements for SSOs.
iii. Collection System Questionnaire
The required Questionnaire (see subsection G of the SSS WDRs) provides the Water
Boards with site-specific information related to the enrollee's sanitary sewer system. The
enrollee shall complete and certify the Questionnaire at least every 12 months to facilitate program implementation, compliance assessment, and enforcement response.
iv. SSMP Availability
The enrollee shall provide the publicly available internet web site address to the CIWQS
Online SSO Database where a downloadable copy of the enrollee's approved SSMP, critical supporting documents referenced in the SSMP, and proof of local governing board
approval of the SSMP is posted. If all of the SSMP documentation listed in this
subsection is not publicly available on the Internet, the enrollee shall comply with the
following procedure:
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a. Submit an electronic copy of the enrollee's approved SSMP, critical supporting
documents referenced in the SSMP, and proof of local governing board approval of
the SSMP to the State Water Board, within 30 days of that approval and within 30 days of any subsequent SSMP re-certifications, to the following mailing address:
State Water Resources Control Board
Division of Water Quality
Attn: SSO Program Manager
1001 I Street, 15th Floor, Sacramento, CA 95814
D. WATER QUALITY MONITORING REQUIREMENTS:
To comply with subsection D.7(v) of the SSS WDRs, the enrollee shall develop and
implement an SSO Water Quality Monitoring Program to assess impacts from SSOs to
surface waters in which 50,000 gallons or greater are spilled to surface waters. The SSO
Water Quality Monitoring Program, shall, at a minimum:
1. Contain protocols for water quality monitoring. 2. Account for spill travel time in the surface water and scenarios where monitoring may not be
possible (e.g. safety, access restrictions, etc.).
3. Require water quality analyses for ammonia and bacterial indicators to be performed by an
accredited or certified laboratory.
4. Require monitoring instruments and devices used to implement the SSO Water Quality
Monitoring Program to be properly maintained and calibrated, including any records to
document maintenance and calibration, as necessary, to ensure their continued accuracy. 5. Within 48 hours of the enrollee becoming aware of the SSO, require water quality sampling for, at a minimum, the following constituents:
i. Ammonia
ii. Appropriate Bacterial indicator(s) per the applicable Basin Plan water quality objective or
Regional Board direction which may include total and fecal coliform, enterococcus, and
e-coli.
E. RECORD KEEPING REQUIREMENTS:
The following records shall be maintained by the enrollee for a minimum of five (5) years and
shall be made available for review by the Water Boards during an onsite inspection or through
an information request:
1. General Records: The enrollee shall maintain records to document compliance with all
provisions of the SSS WORs and this MRP for each sanitary sewer system owned including
any required records generated by an enrollee's sanitary sewer system contractor(s).
2. SSO Records: The enrollee shall maintain records for each SSO event, including but not
limited to:
i. Complaint records documenting how the enrollee responded to all notifications of possible
or actual SSOs, both during and after business hours, including complaints that do not
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result in SSOs. Each complaint record shall, at a minimum, include the following
information:
a. Date, time, and method of notification.
b. Date and time the complainant or informant first noticed the SSO.
c. Narrative description of the complaint, including any information the caller can
provide regarding whether or not the complainant or informant reporting the potential
SSO knows if the SSO has reached surface waters, drainage channels or storm
drains.
d. Follow-up return contact information for complainant or informant for each complaint
received, if not reported anonymously.
e. Final resolution of the complaint.
ii. Records documenting steps and/or remedial actions undertaken by enrollee, using all
available information, to comply with section D.7 of the SSS WDRs.
iii. Records documenting how all estimate(s) of volume(s) discharged and, if applicable, volume(s) recovered were calculated. 3. Records documenting all changes made to the SSMP since its last certification indicating
when a subsection(s) of the SSMP was changed and/or updated and who authorized the
change or update. These records shall be attached to the SSMP.
4. Electronic monitoring records relied upon for documenting SSO events and/or estimating the
SSO volume discharged, including, but not limited to records from:
i. Supervisory Control and Data Acquisition (SCADA) systems
ii. Alarm system(s)
iii. Flow monitoring device(s) or other instrument(s) used to estimate wastewater levels, flow
rates and/or volumes.
F. CERTIFICATION
1. All information required to be reported into the CIWQS Online SSO Database shall be certified by a person designated as described in subsection J of the SSS WDRs. This designated person is also known as a Legally Responsible Official (LRO). An enrollee may
have more than one LRO.
2. Any designated person (i.e. an LRO) shall be registered with the State Water Board to certify reports in accordance with the CIWQS protocols for reporting.
3. Data Submitter (OS): Any enrollee employee or contractor may enter draft data into the
CIWQS Online SSO Database on behalf of the enrollee if authorized by the LRO and registered with the State Water Board. However, only LROs may certify reports in CIWQS.
4. The enrollee shall maintain continuous coverage by an LRO. Any change of a registered
LRO or OS (e.g., retired staff), including deactivation or a change to the LRO's or OS's contact information, shall be submitted by the enrollee to the State Water Board within 30 days of the change by calling (866) 792-4977 or e-mailing help@ciwqs.waterboards.ca.gov.
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5. A registered designated person (i.e., an LRO) shall certify all required reports under penalty of
perjury laws of the state as stated in the C!WQS Online SSO Database at the time of
certification.
CERTIFICATION
The undersigned Clerk to the Board does hereby certify that the foregoing is a full, true, and correct
copy of an order amended by the Executive Director of the State Water Resources Control Board.
1/w/,3
Date
Appendix C
City Sanitary Sewer System
ADS Meters & Smartcover
Alarms Map
Appendix D
City Sewer Agencies & Map of
Facilities - Creeks and
Lagoons
Sewer Agencies in Carlsbad
Appendix E
City Lift Station Emergency
Spill Response Plans
Emergency Response Home Plant Lift Station
2359 Carlsbad Blvd.
(760) 729-7513
Electric Meter #1411052
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can be repaired or replaced in one day.
In a station failure condition you have a maximum of 5 hours to bypass the station from the time you are
called. Flow will come out of the man hole on State Street, just north of Laguna Drive. Damage to the
environment could occur. See Map. Equipment needed:
Get all agencies to respond and evaluate after Atlas/JJ Septic tanks arrive
Ø Both of our Vactors
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call Vallecitos for Vactor
Ø Call Oceanside for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons JJ Septic tank (Largest tanker 7,000 gallons)
Godwin Pumps 1-858-679-9017 Atlas (Largest tanker 5,000 gallons) 1-619-443-7867
Ø Need to call for a bypass pump (1-858-679-9017)
Ø Gas supply for pump and generator
Ø 3 “Crew Working Ahead” traffic control signs
Ø 1 “Road Closed Ahead” traffic control signs
Ø 2 “Detour” traffic control signs
Ø 20 cones
If force main cannot be used, skip this section. If force main can be used, call for assistance and get 6 additional crew members.
See List of Emergency numbers for outside service
Contact one of the following pump companies and have them bring the equipment listed below: Godwin Pumps Rain for Rent
Equipment Needed:
• Pump size, 1,500 minimum GPM @ 70’ of head
• 50’ of suction hose
• 40’ of discharge hose capable of connection of 6” flange
See pump hook diagram If the Force Main cannot be used:
Get all agencies to respond and evaluate after Atlas and JJ Septic tanks arrive
Both of our Vactors
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call Vallecitos for Vactor
Ø Call Oceanside for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons o JJ Septic tank (largest tanker 7,000 gallons) o Atlas (Largest tanker 5,000 gallons)
Emergency Response
Fox’s Lift Station
4155 Harrison St.
(760) 434-3327
Electric Metter #1037077-110
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can be repaired or replaced in one day.
In a station failure condition, you have a maximum of 2.5 hours to bypass the station from the time you are
called.
See Maps.
Fox’s
If force main cannot be used, skip this section.
If force main can be used, call for assistance and get 6 additional crew members.
See list of Emergency numbers for outside service Contact one of the following pump companies and have them bring the equipment listed below:
JJ Septic Tanks Godwin Pumps
Equipment Needed:
Ø Pump size, 1,500 minimum GPM @ 60’ of head
Ø 50’ of suction hose
Ø 50’ of discharge hose capable of connection of 6” flange
See pump hook diagram
If the Force Main cannot be used:
Get all agencies to respond and evaluate after Atlas and JJ Septic tanks arrive
Both of our Vactors
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call Vallecitos for Vactor
Ø Call Oceanside for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons
§ JJ Septic tank (Largest tanker 7,000 gallons)
§ Godwin Pumps 1-858-679-9017
§ Atlas (Largest tanker 5,000 gallons) 1-619-443-7867
Ø All “Crew Working Ahead” traffic control signs are needed
Ø All cones are needed
Contact Carlsbad Police Department and notify them of the work zones
As equipment becomes available, send to the following sites.
They are in priority order
Need to plug 6 inch lateral entering MH and notify residence to reduce Water usage.
Portable Pumps 1. First trailer pump available send to Fox’s and pump out of MH next to station Required to pump 35,000 gallons per hour
2. Second trailer pump available send to Kelley North of Park Dr. Will need 12 inch plug
Required to pump 10,000 per hour
3. Third location is Park Dr. West of Neblina Required to pump 15,000 per hour
Tanker trucks.-Atlas-Vactors
1. All tankers Report to Fox’s
As other equipment becomes available send to those sites some tankers You will keep tanks to be able to pump 35,000 per hour
Fox’s Truck Routes
1. Start at Fox’s lift station 2. Left on Harrison St.
3. Left on Chinquapin 4. Pull up and back truck down Harbor M.H. 16C-85
Emergency Response
Terramar Lift Station
300 Cannon Road
(760) 438-9178
Electric Meter #861108
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can
be repaired or replaced in one day.
In a station failure condition you have a maximum of 3 hours to bypass the station from the time you are
called. Property damage may occur on Shore Drive and Tierra Del Oro Street. Damage to the environment
could occur. See Map.
After determining what level of emergency this is, continue to the next page and follow the instructions for the emergency you have selected.
Equipment needed:
Ø 2 Vactors are needed
Ø 3 “Crew Working Ahead” traffic control signs
Ø 1 “Lane Closed Ahead” traffic control sign
Ø 1 “Right Turn Only” traffic control sign
Ø 1 “Keep Right” traffic control sign
Ø 20 cones
Contract Carlsbad Police Department and notify them of the lane closures
For traffic control and pumping, see the following photo and diagram
For truck route for dumping and return, see the following
If force main cannot be used, skip this section. If force main can be used, call for assistance and get 6 additional crew members.
See list of Emergency numbers for outside service. Contact one of the following pump companies and have them bring the equipment listed below:
JJ Septic Tanks
Godwin pumps
Vactors can keep up with flow.
Emergency Response
Batiquitos Lift Station
7382 Gabbiano Lane
(760) 603-8195
Electric Meter #1568462-1664150
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for
proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can
be repaired or replaced in one day.
In a station failure condition you have a maximum of 4 hours to bypass the station from the time you are called.
Flow will come out of the man hole 400 feet east of the station. Damage to the environment could occur. See Map.
Equipment needed:
Get all agencies to respond and evaluate after Atlas/JJ Septic tanks arrive:
Both of our Vactors
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call Vallecitos for Vactor
Ø Call Oceanside for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons
§ JJ Septic (Largest tanker 7,000 gallons)
§ Atlas (Largest tanker 5,000 gallons)
Contact Carlsbad Police Department and notify them of truck route
For traffic control and pumping, see the following photo and diagram
If force main cannot be used, skip this section.
If force main can be used, call for assistance and get 6 additional crew members.
See list of Emergency numbers for outside service.
Contact one of the following pump companies and have them bring the equipment listed below:
JJ Septic Tanks
Rain for Rent
Equipment Needed:
Ø Pump size, 1,500 minimum GPM @ 164’ of head
Ø 40’ of suction hose
Ø 30’ of discharge hose capable of connection of 6” flange See pump hook diagram.
If the Force Main cannot be used:
Get all agencies to respond and evaluate after Atlas and JJ Septic tanks arrive
Both of our Vactors
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call Vallecitos for Vactor
Ø Call Oceanside for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons o JJ Septic tank (largest tanker 7,000 gallons) o Godwin Pumps 1-858-679-9017 o Atlas (largest tanker 5,000 gallons) 1-619-443-7867
Ø Request bypass pumping from Godwin Pumps Needed for bypass:
Pump 850 to 1,500 GPM @ 164’ head Suction hose manhole 40 depth
Discharge hose 50’
Ø Diesel supply for pumps and generators
Ø All Sewer plugs and air hoses
Ø All cones are needed
Contact Carlsbad Police Department and notify them of the work zones.
As equipment becomes available, send to the following sites. They are in priority order.
JJ Septic-Atlas-Vactors
All tankers report to Batiquitos As other equipment becomes available send to those sites some tankers
You will keep tanks to be able to pump 35,000 per hour
Emergency Response
Chinquapin Lift Station
4010 Carlsbad Blvd.
(760) 729-4745
Electric Meter #1005010
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for
proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can
be repaired or replaced in one day. In a station failure condition you have a maximum of 4 hours to bypass the station from the time you are
called. Flow will come out of the wet well and damage to the environment may occur. See map.
1st Manhole north of station on coast highway
Equipment needed:
Ø 2 Vactors are needed
Ø 1 “Crew Working Ahead” traffic control sign
Ø 1 “Right Lane Closed” traffic control sign
Ø 1 “Bike Lane Closed Ahead” traffic control sign
Ø 1 arrow board
Ø 20 cones
Contract Carlsbad Police Department and notify them of the lane closures
For traffic control and pumping, see the following photo and diagram For truck route for dumping and return, see the following map
If force main cannot be used, skip this section. If force main can be used, call for assistance and get 6 additional crew members.
See list of Emergency numbers for outside service. Contact one of the following pump companies and have
them bring the equipment listed below:
JJ Septic Rain for Rent
Ø Pump size, 300 minimum GPM @ 50’ of head
Ø 40’ of suction hose
Ø 30’ of discharge host capable of connection of 6” flange See pump hook diagram.
If the Force Main cannot be used: Get all agencies to respond and evaluate after Atlas and JJ Septic tanks arrive.
Both of our Vactors
Ø Call the following pumping companies and request a total capacity of 20,000 gallons
o JJ Septic tank (largest tanker 7,000 gallons) o Atlas (largest tanker 5,000 gallons)
Ø All “Crew Working Ahead” traffic control signs are needed
Ø All cones are needed
Call Carlsbad Police Department and notify them of the work zones.
Emergency Response
Villas Lift Station
2860 Winthrop Ave
(760) 434-0513
Electric Meter #84105526-1380435
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can
be repaired or replaced in one day.
In a station failure condition you have a maximum of 3 hours to bypass the station from the time you are
called. Property damage will occur on Winthrop Ave lower floor. See Map.
Equipment needed: Use Vactor and Atlas Trucks. This would be the ERP for any station failures.
Ø 2 Vactors are needed. Call Atlas and request a 3,000 gallon tanker.
Ø 1 “Crew Working Ahead” traffic control sign
For traffic control and pumping, see the following photo and diagram For truck route for dumping and return, see following map
If force main can be used, call for assistance and get 6 additional crew members. See list of Emergency numbers for outside service.
Contact one of the following pump companies and have them bring equipment listed below: JJ Septic Tanks
Rain for Rent
See pump hook diagram.
Get all agencies to respond and evaluate after Atlas and JJ Septic tanks arrive. Call the following companies and request a total capacity of 20,000 gallons
Ø JJ Septic tank (largest tanker 7,000 gallons)
Ø Atlas (largest tanker 5,000 gallons) “Crew Working Ahead” traffic control signs are needed.
Cones are needed Contact Carlsbad Police Department and notify them of the work zones.
Emergency Response
Poinsettia Lift Station
2425 Poinsettia Lane
(760) 918-9496
Electric Meter #12938995
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for
proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can
be repaired or replaced in one day.
In a station failure condition you have a maximum of 2 hours to bypass the station from the time you are
called.
Flow will come out of the wet well. Damage to the environment could occur. See Map. Equipment needed:
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons
§ JJ Septic tank (Largest tanker 7,000 gallons)
§ Atlas (Largest tanker 5,000 gallons)
Ø 2 “Crew Working Ahead” traffic control sign
For traffic control and pumping, see the following photo and diagram For truck route for dumping and return, see following map
If force main cannot be used, skip this section.
If force main can be used, call for assistance and get 6 additional crew members.
See list of emergency numbers for outside service.
Contact one of the following pump companies and have them bring equipment listed below:
JJ Septic Tanks
Godwin Pumps
Rain for Rent
Equipment Needed:
Ø Pump size, 1,500 minimum GPM @ 247’ of head
Ø 40’ of suction hose
Ø 100’ of discharge hose capable of connection of 8” flange
See pump hook diagram.
If the force main cannot be used:
Get all agencies to respond and evaluate after Atlas and JJ Septic tanks arrive.
Both of our Vactors
Ø Call the following pumping companies and request a total capacity of 20,000 gallons
o JJ Septic tank (largest tanker 7,000 gallons) o Atlas (largest tanker 5,000 gallons)
o Godwin Pumps
Emergency Response
Knots Lift Station
501 Knots Lane
(760) 438-8642
Electric Meter #1359036
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can be repaired or replaced in one day.
This station is unique from the others. The gravity line coming to the station is connected to the gravity system that flows to the
North, if level builds up in the wet well. No action is needed, unless that connection has failed. Refer to map for locations of man holes to monitor.
Flow will come out of the wet well. Damage to the environment could occur. See Map.
Equipment needed:
Ø 1 Vactor is needed
Ø 3 “Crew Working Ahead” traffic control signs For traffic control and pumping, see the following photo and diagram
For truck route for dumping and return, see following map If force main cannot be used, skip this section.
If force main can be used, call for assistance and get 6 additional crew members.
See list of emergency numbers for outside service.
Contact one of the following pump companies and have them bring equipment listed below:
If the force main cannot be used call vactors to keep up with flow.
We need a GPS map showing the manhole the vactor would dump into.
Emergency Response
Sand Shell Lift Station
613 Sand Shell (760)-431-2409
Electric Meter #1748324
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for
proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can
be repaired or replaced in one day.
The gravity line coming to the station is connected to the gravity system that flows to the North, if level builds up in the wet well. No action is needed unless that connection has failed.
Equipment needed:
Ø 2 Vactors are needed. Call Atlas and request a 3,000 gallon tanker.
Ø 1 “Crew Working Ahead” traffic control sign
Ø 2 Vactors can keep up with flow
Emergency Response
Cannon Lift Station
2197 Cannon Road (760)-431-5911
Electric Meter #01829469 #28196274
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for
proper operation.
Ø Lift Station is operating properly and all major components are functioning. Minor component can
be repaired or replaced in one day.
The gravity line coming to the station is connected to the gravity system that flows to the North, if level builds up in the wet well. No action is needed unless that connection has failed.
Need manhole ID number in front of station. Spill point 23A-69
Equipment needed:
Ø Call the following pumping companies and request a total capacity of 20,000 gallons
§ JJ Septic tank (Largest tanker 7,000 gallons)
§ Atlas (Largest tanker 5,000 gallons)
Ø 2 “Crew Working Ahead” traffic control sign For traffic control and pumping, see the following photo and diagram
For truck route for dumping and return, see following map
Need by-pass pump.
If force main cannot be used, skip this section.
If force main can be used, call for assistance and get 6 additional crew members.
See list of emergency numbers for outside service.
Contact one of the following pump companies and have them bring equipment listed below:
JJ Septic Tanks
Godwin Pumps
Equipment Needed:
Ø Pump size, 1,500 minimum GPM @ 188’ of head
Ø 40’ of suction hose
Ø 50’ of discharge hose capable of connection of 6” flange See pump hook diagram.
If the force main cannot be used:
Get all agencies to respond and evaluate after Atlas and JJ Septic tanks arrive.
Both of our Vactors
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call Vallecitos for Vactor
Ø Call Oceanside for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons o JJ Septic tank (largest tanker 7,000 gallons) o Atlas (largest tanker 5,000 gallons)
All “Crew Working Ahead” traffic control signs are needed.
All cones are needed.
Contact Carlsbad Police Department and notify them of the work zones.
Emergency Response
El Fuerte Lift Station
5812 El Fuerte
(760) 931-1757
Electric Meter #1922924
After station evaluation, determine which of the following categories the station is in:
Ø Lift Station is inoperable and pumps cannot be used. You need to bypass the station. Need a bypass
pump – we only have 2 pumps.
Ø At least one pump is operating, but there is a major component that has failed. Repair is required for
proper operation. Need a bypass pump.
Ø Lift Station is operating properly and all major components are functioning. Minor component can
be repaired or replaced in one day.
In a station failure condition you have a maximum of 3-4 hours to bypass the station from the time you are called.
Flow will come out of the manhole on Faraday Avenue. Damage to the environment could occur. See Map.
Equipment needed:
Ø Both of our Vactors
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons
§ JJ Septic (Largest tanker 7,000 gallons)
§ Atlas (Largest tanker 5,000 gallons)
Ø Trailer mounted pump with manifold
Ø 200 feet of fire hose
Ø 2 “Crew Working Ahead” traffic control sign
For traffic control and pumping, see the following photo and diagram.
For truck route for dumping and return, see following map. From station go left, south on El Fuerte, right on Loker west, dump on manhole & return left on
Palomar Rd. to El Fuerte lift station.
If force main cannot be used, skip this section. If force main can be used, call for assistance and get 6 additional crew members.
See list of emergency numbers for outside service. Contact one of the following pump companies and have them bring equipment listed below:
JJ Septic Tanks
Godwin Pumps
Equipment Needed:
Ø Pump size, 1,500 minimum GPM @ 50’ of head
Ø 40’ of suction hose
Ø 30’ of discharge hose capable of connection of 6” flange See pump hook diagram.
If the force main cannot be used:
Get all agencies to respond and evaluate after Atlas and JJ Septic tanks arrive.
Both of our Vactors
Ø Call Leucadia for Vactor
Ø Call Vista for Vactor
Ø Call Vallecitos for Vactor
Ø Call Oceanside for Vactor
Ø Call the following pumping companies and request a total capacity of 20,000 gallons
o JJ Septic tank (largest tanker 7,000 gallons) o Atlas (largest tanker 5,000 gallons)
All cones are needed.
Contact Carlsbad Police Department and notify them of the work zones.
As equipment becomes available, send to the following sites.
They are in priority order.
Need to plug 6 inch lateral entering MH and notify residents to reduce water usage.
Appendix F
City Wastewater
Emergency Spill Notification
Contact List
CITY OF CARLSBAD MUNICIPAL WATER DISTRICT
EMERGENCY SPILL NOTIFICATION CONTACT LIST BY CATEGORY
WASTEWATER PERSONNEL CONTACTS
Don Wasko, Utilities Manager
Carlsbad Wastewater
760-802-4756 (cell) or 760-730-3367 (home)
Jesse Castaneda, Supervisor, Carlsbad Wastewater Operations 760-802-8200 (cell) or 760-908-8648 (home) 760-293-3749 (other)
Eric Sanders, Utilities Manager Carlsbad
Water Operations
760-802-8299 (cell)
Clayton Dobbs, Supervisor, Carlsbad Storm Drain Maintenance 760-802-4773 (cell)
Mike Trinci,
Carlsbad Wastewater Operations
760-802-4776 (cell) or 760-812-7786 (home)
Omar Agraz, Carlsbad Wastewater Operations 760-802-7648 (cell) or 760-429-5787 (home)
Kyle Wade, Carlsbad Wastewater
Operations
760-802-5895 (cell) or 760-685-5423 (home)
Duty Phone, Carlsbad Sanitation Operations 760-802-4694 (cell)
Mike Lichtenfels,
Carlsbad Wastewater Operations
760-802-5895 (cell) or 760-505-7393 (home)
James Somera, Carlsbad Wastewater Collections 760-802-7703 (cell) or 442-999-0972 (home)
Matt Ream,
Carlsbad Wastewater Collections
760-802-4661 (cell) or 760-539-6323 (home)
Tom Vega, Carlsbad Wastewater Collections 760-802-7873 (cell) or 760-430-9187 (home)
Duty Phone,
Carlsbad Wastewater Collections
760-802-4634 (cell)
Oscar Torres, Carlsbad Wastewater Collections 760-802-5763 (cell) or 760-505-7393 (home)
Jeremy Matlock, Carlsbad Wastewater
Collections
760-802-4647 (cell) or 951-757-5891 (home)
Morgan Fain, Carlsbad Wastewater Collections 760-802-5642 (cell) or 760-692-7828 (home)
Danny Goggin
Carlsbad Storm Drain Maintenance
760-497-4303 (cell)
Eric Martinez, Carlsbad Storm Drain Maintenance 760-801-6548 (cell)
Duty Phone
Carlsbad Storm Drain Maintenance
760-802-4634 (cell)
Appendix G
City Lift Station
Generator List
GENERATORS - SEWER LIFT STATIONS
Lift Station Generator Diesel Fuel Capacity Usage Rate Per Hour
Estimated Run Time on
Full Tank
Home Plant
2359 Carlsbad
Blvd.
Kholer
John Deere
60 KW 50 gals. 1.4 gals./hr. 35.7 hrs.
Fox's
4155 Harrison
St.
Kholer
John Deere
125 KW 175 gals. 3.3 gals./hr. 53 hrs.
Batiquitos
7382 Gabiano
Ln.
Caterpillar
200 KW 300 gals. 7.07 gals./hr. 42.43 hrs.
Chinquapin
4010 Carlsbad
Blvd.
Olympia
Perkings
40 KW 70 gals. 3.3 gals./hr. 21 hrs.
Poinsettia
2425 Poinsettia
Ln.
Caterpillar
250 KW 336 gals. 4.8 gals./hr. 70 hrs.
Knots
501 Knots Ln.
Gererac
Kia
20 KW 137 gals. 2.9 gals./hr. 47 hrs.
Cannon
2197 Cannon
Rd.
Kholer
Volvo
350 KW 120 gals. 4.2 gals./hr. 28.5 hrs.
Sand Shell
613 Sand Shell
Ave.
Kholer
John Deere
20 KW 100 gals. 3.3 gals./hr. 30.30 hrs.
El Fuerte
5812 El Fuerte
St.
Cummings
135 KW 120 gals. 2.84 gals./hr. 42.25 hrs.
Appendix H
City SSO Contact
Tree
Emergency Contact List
***Two Hour Notice Required if Spill Reaches Water Way***
1. California Regional Water Quality Control Board
Contact: Eric Becker (Water Resources Control Engineer)
Phone: (858) 492-1785
Fax: (858) 571-6972
Leave a message if no one available.
2. Office of Emergency Services
(For spills greater than 1000 gallons)
Phone: (800) 852-7550
They will provide a control number for your report. Please
write it down on spill report.
*** MUST NOTIFY ASAP, Within 24 hours ***
3. San Diego County Health
Category 1 Spill, fax spill report (1000 gals or more, not fully captured, or reaches surface waters). Category 2 Spill, will get from online (all other spills).
Spill not recovered to water way or ocean notify immediately.
CALL FIRST, After Hours/Weekends/Holidays, You must call the
Communications Center (858) 565-5255 and request to have the HazMat
Specialist paged.
Contact: Keith Kezer, Proposition 65 Coordinator
Phone: (858) 495-5579
Fax: (858) 694-3670
Leave a message if no one available.
For Spills Affecting Agua Hedionda Lagoon
4. Agua Hedionda Watershed Preharvest Sanitation Unit
Contact: Sam Rieken
Work: (510) 412-4633 OR: Gregg Langolis
Work: (510) 327-5590
5. Carlsbad Aquafarm
Office: 760-438-2444 After Hours: Tomas Grimm: 760-802-3180
6. YMCA Aquatics Camp
Chad: 760-720-1274
7. Railroad/Coaster
Dispatch: (888) 446-9716
Emergency Train Stop (re: car stuck on track, etc.): (888) 446-9715
Flagging Requests, Ed Singer: (760) 966-6556 Right of Way Maintenance, Richard Walker: (760) 966-6556
8. Other Agencies
City of Oceanside: (760) 966-7860 or (760) 966-4905 City of Vista: (760) 726-1340 or (760) 756-3006 Encina: (760) 438-3941
Escondido: (760) 839-4722
Leucadia Water District: (760) 753-0155 Vallecitos: (760) 744-0460
9. Emergency Personnel Contact List
Name Mobile Home
Don Wasko, Utilities Manager 760-802-4756 760-730-3367
Jesse Castaneda, WW Ops 760-802-8200 760-908-8648
Mike Lichtenfels, WW Ops 760-802-5763 760-505-7393
Mike Trinci, WW Ops 760-802-4776 760-812-7786
Kyle Wade, WW Ops 760-802-5895 760-685-5423
Omar Agraz, WW Ops 760-802-7648 760-429-5787
Duty Phone, WW Ops 760-802-4694
Morgan Fain, WW Coll 760-802-5642 760-692-7828
Oscar Torres, WW Coll 760-802-5810 760-917-2336
Jeremy Matlock, WW Coll 760-802-4647 951-757-5891
James Somera, WW Coll 760-802-7703 442-999-0972
Tom Vega, WW Coll 760-802-7873 760-430-9187
Matt Ream, WW Coll 760-802-4661 760-539-6323
Duty Phone, Storm Drain Main. 760-802-4634
Clayton Dobbs, Storm Drain
Sup. 760-802-4773
10. Emergency Contractors
Emergency Clean Up Services
Afloat Flood Service, Inc. (760) 945-3170
Service Master (800) 376-6677
Hotels with Kitchenettes
Ramada Suites Carlsbad (760) 438-2285
Residence Inn Carlsbad (760) 431-9999
Pumpers
Atlas Pumpers: (619) 443-7867
JJ Septic: (760) 724-8511
Godwin Pumps: 1-858-679-9017
Emergency Environmental Clean Up
NRC – Hazmat/Environmental Services (800) 337-7455
Cannon Pacific Services-Street Sweeper (760) 471-9003
Emergency TV/Combination Truck Service
Affordable Pipeline Services (619) 818-6795 or 858-689-4000
Downstream Services (760) 746-2544
SDG&E Power Failure 1-800-411-7343
Telephone 1-800-332-1321
Underground Alert 1-800-422-4133
Southern Calif. Gas Co. 1-800-640-9997
Cable TV 760-707-1000
Appendix I
Sanitary Sewer Overflow
Response Form – Field
Documentation
(6 Page Document) SSO RESPONSE - FIELD DOCUMENTATION
REPORTED BY
Call Address:
On Service Request: __________________________________________________________________ (SR #____________________)
Caller Name: __________________________________________________________ Phone: _________________ ______________
Receipt of Call: Date: ______/_____/_____ Time: _______:_______ AM PM Call Received By: __________________
Call Dispatch: Date: _______/_______/_______ Time: ________:________ AM PM Assigned To: ________________________
Arrived: Date: ________/________/________ Time: _________:_______ AM PM
SPILL START TIME NOTES
Caller Interview: Where did you see sewage spill from? From: Manhole Inside Building C/O
Wet well/Lift station Other___________________________________________________________
Time Caller noticed spill: _________:_________ AM PM Date: _____________/____________/____________
Comments:
___________________________________________________________________________________________________________
___________________________________________________________________________________________________________
Last time Caller observed NO Spill occurring: __________:__________ AM PM Date: _________/________/________
Comments:
__________________________________________________________________________________________________________
__________________________________________________________________________________________________________
__________________________________________________________________________________________________________
__________________________________________________________________________________________________________
SSO End Time: __________:__________ AM PM Date: _________/________/_________
Other Comments regarding spill start time:
__________________________________________________________________________________________________________
__________________________________________________________________________________________________________ __________________________________________________________________________________________________________ __________________________________________________________________________________________________________ __________________________________________________________________________________________________________
(6 Page Document) SSO RESPONSE - FIELD DOCUMENTATION
SPILL LOCATION
Observed Spill from: Manhole ID_________________________ Lift Station ID _________________________
Clean Out Address ______________________________________________________________________________________
Comments: _________________________________________________________________________________________
Building Address _______________________________________________________________________________________
Comments: __________________________________________________________________________________________
Spill Destination: Building Paved Surface Storm Sys Curb/Gutter Unpaved Surface Water
If answer is “yes” to any of the 3 questions above, the SSO is a Category 1.
SPILL VOLUME WORKSHEET
The purpose of this worksheet is to capture the data and method(s) used in estimating the volume of an SSO. Since there are many
variables and often unknown values involved, this calculation is just an estimate. Additionally, it is useful to use more than one
method, if possible, to validate your estimate.
The following methods and tools are the approved methods for Response. Check all methods and tools that you used:
o Eyeball Estimate Method
o Measured Volume Method
o Duration and Flow Rate Method (Account for diurnal flow pattern for long duration)
o SSO Flow Rate Estimating Tool
o Other (explain) i.e.; estimated daily use per capita upstream or meter @ Pump Station.
________________________________________________________________________________________________ _______________________________________________________________________________________________________ _______________________________________________________________________________________________________
Answer these three questions:
#1 - Was it ≥ 1,000 gallons? _____ Yes _____ No
#2 - Was there a discharge to a drainage channel and/or surface water? _____ Yes ______No
#3 - Was there a discharge to storm drain pipe that was “NOT” fully captured & returned to the sanitary
sewer system? _____ Yes ______No
(6 Page Document) SSO RESPONSE - FIELD DOCUMENTATION
Eyeball Estimate Method- Imagine a bucket(s) or barrel(s) of water tipped over.
Size of bucket(s) or barrel(s) How many of this
Size?
Multiplier Total Volume
Estimated
1 gal. water jug X 1
5 gal. bucket X 5
32 gal. trash can X 32
55 gal drum X 55
Total Volume Estimated Using
Eyeball Method
Measured Volume Method (this may take several calculation as may have to break down the odd shaped spill to rectangles, circles,
and polygons) It is important when guessing depth to measure, if possible in several locations and use an average depth.
1. Draw a sketch of the spill and attach if separate document.
2. Draw shapes and dimensions used on your sketch
3. Use correct formula for various shapes
Rectangle L x W x D
Circle 3.14 x R² x D
Polygons see reference chart Show formula used
Duration and Flow Rate Method worksheet:
Start Date and Time 1.
End Date and time 2.
Total time elapsed of SSO event (subtract line 1 from line
2. Show time in minutes)
3.
Average flow rate GPM (account for diurnal pattern) 4.
Total volume estimate using duration and flow rate
method (Line 3 x Line 4)
5.
CAUSE OF SPILL
(6 Page Document) SSO RESPONSE - FIELD DOCUMENTATION
Spill Cause: Roots Grease Debris Vandalism Lift Sta. Fail Other _________________________________
Spill cause to be determined by CCTV inspection (Attach TV Report to this form)
Final Cause Determination:
_____________________________________________________________________________________________________
_____________________________________________________________________________________________________
_____________________________________________________________________________________________________
Follow-up or Corrective Action Taken:
_____________________________________________________________________________________________________
_____________________________________________________________________________________________________
_____________________________________________________________________________________________________
_____________________________________________________________________________________________________
_____________________________________________________________________________________________________
SPILL CONTAINMENT
Containment Implemented:___________:__________ AM PM Date: _________/_______/________
Containment Measures: Plugged Storm Drain Washed Down Vacuum Up Water/Sewage
Other Measures: ________________________________________________________________
_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
_________________________________________________________________________________________________________ _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ CLEAN UP
(6 Page Document) SSO RESPONSE - FIELD DOCUMENTATION
Clean Up Begin Time: ________:________ AM PM Date: _________/________/________
Clean Up Complete Time: ________:________ AM PM Date: _________/________/________
Describe Clean Up Operations: ______________________________________________________________________________
________________________________________________________________________________________________________
________________________________________________________________________________________________________
__________________Gallons – Estimate Volume of Spill Recovered (do not count wash down water)
OTHER IMPORTANT MILESTONES
Contacted Supervisor: _____:_____ AM PM Date: _________/________/____________________________
Requested Additional EE’s/Equip: _____:_____ AM PM Date: _________/________/_____________________________
Requested Additional EE’s/Equip: _____:_____ AM PM Date: _________/________/_____________________________
Requested Additional EE’s/Equip: _____:_____ AM PM Date: _________/________/_____________________________
Departure Time: _____:_____ AM PM Date: _________/________/_____________________________
_________________________ _____:_____ AM PM Date: _________/________/_____________________________
_________________________ _____:_____ AM PM Date: _________/________/_____________________________
________________________ _____:_____ AM PM Date: _________/________/_____________________________
REPORTING (complete if spill is 1,000 gallons or more)
Report to Cal-EMA: Date:_____________ ______:______ AM PM (Cat.1 Only) (800) 852-7550 By: ___ __________
Control Number provided by Cal-EMA: _____________________________________________________________
Name of Person Contacted: ___________________________________________________ or Left Message:
Report to CA RWQCB: Date:________________ ______:______ AM PM Phone: 858-637-5581 By: ______________________
Name of Person Contacted: ___________________________________________________ or Left Message: Report to San Diego County Health: Date:________________ ______:______ AM PM Phone: 858-495-5579 By: ______________________ or after hours dispatch 858-565-5255 By: ______________________ Name of Person Contacted: ___________________________________________________ or Left Message:
(6 Page Document) SSO RESPONSE - FIELD DOCUMENTATION
Notes:
Response Crew: _____________________, ______________________, _____________________, _____________________ _____________________, _______________________, ______________________, _________________
Appendix J
CIWQS Online Database
Screen Shot
Appendix K
Reference Sheet for
Estimating Sewer Spills
From Manholes
City of Carlsbad / March 2015
Overflow Emergency Response Plan – Page 1
Sewer System Management Plan 2019 SSMP Update
Attachment F2
Example Spill Prevention and Emergency
Response Plan
CM&I Engineering
5950 El Camino Real 1635 Faraday Avenue Carlsbad, CA 92008 Carlsbad, CA 92008 760-602-2780 760-602-2765
Submittal Review
Project Name:
Project No:
Submittal Title:
Submittal No:
Contractor:
Date Received: Date of Return:
CITY OF CARLSBAD
SHOP DRAWING REVIEW THIS REVIEW BY THE ENGINEER IS FOR GENERAL CONFORMANCE WITH THE PROJECT DESIGN CONCEPT AND GENERAL COMPLIANCE WITH THE INFORMATION GIVEN IN THE CONTRACT DOCUMENTS AND SHALL NOT IN ANY WAY RELEASE THE CONTRACTOR FROM FULL RESPONSIBILITY FOR COMPLETE AND ACCURATE PERFORMANCE OF THE WORK IN ACCORDANCE WITH THE CONTRACT DRAWINGS AND SPECIFICATIONS. NEITHER SHALL THIS REVIEW AND RESPONSE RELEASE THE CONTRACTOR FROM ANY LIABILITY PLACED UPON HIM BY ANY CONTRACTUAL PROVISIONS. ALL DEVIATIONS FROM THE PROJECT CONTRACT DOCUMENTS SHALL BE SPECIFICALLY CALLED TO THE ATTENTION OF THE ENGINEER.
REJECTED/RESUBMIT
AMEND AND RESUBMIT
MAKE CORRECTIONS NOTED
NO EXCEPTIONS TAKEN
RETAINED ON FILE
By: Engineer Date By:
Construction Manager Date
Comments:
SUBMITTAL TRANSMITTAL FORM
FROM : NEWest CONSTRUCTION COMPANY
9235 TRADE PLACE SUITE A
SAN DIEGO, CA 92126
PH: 858-537-0774 FAX:858-537-9653
DATE: Jul 12, 2017
TO: Infrastructure Engineering Corp.
ATTENTION: Robert Fitzgerald
PROJECT NAME:
Foxes Landing Lift Station Replacement
SUBJECT OF SUBMITTAL:
020.2Submittal No.THIS IS AN ORIGINAL
SUBMITTAL X
THESE SUBMITTALS ARE TRANSMITTED AS CHECKED BELOW
FOR YOUR APPROVAL
FOR YOUR USE
AS REQUESTED
FOR REVIEW COMMENT
RESUBMITTAL
RETURNED WITH CORRECTIONS NOTED
X
PROJECT NO. 5526
OWNER: City of Carlsbad
1635 Faraday Ave.
Carlsbad, CA 92008
THIS IS A
RE-SUBMITTAL
Spill Prevention & Emergency Response Plan
SPECIFICATION SECTION (S)
DEVIATION(S) IF ANY:
CONTRACTOR'S CERTIFICATION
“ I hereby certify that the (equipment, material) shown and marked in this submittal is that
proposed to be incorporated into the this Project, is in compliance with the Contract Documents,
can be installed in the allocated spaces, and is submitted for approval”
CONTRACTOR'S AUTHORIZED SIGNATURE
David Pitts
Project Manager
01300 - SUBMITTALS
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Spill Prevention & Emergency Response Plan
NEWest Construction Company, Inc.
9235 Trade Place Suite A, San Diego CA. 92126
Foxes Landing Lift Station Replacement
Emergency Contact Information (Contact as Required)
Onsite Emergency Contact(s) NEWest, Clem Miner- Superintendent
858-602-7482/24-Hour Phone
NEWest, David Pitts- Project Manager
858-688-1625/24-Hour Phone
IEC, Robert Fitzgerald- Construction Manager
619-550-6819/24-Hour Phone
Atlas Pumping Company, Damian Baily
619-443-7867/800-491-7867
Affordable Pipeline Services
858-689-4000
JJ Septic & Drain
760-724-8511
Godwin Pumps 24hr Contact Number
951-681-3636
City of Carlsbad, Jesse Castaneda- Utilities Super
760-438-2722 x7137/760-802-8200 Cell
City of Carlsbad, Water/Sewer Dispatch
760-931-2197
Emergency Response Contact(s) Fire/Paramedics/Police: 911
Fire Non-Emergency Line: (760) 931-2141
City of Carlsbad Police
Non-Emergency Line: (760) 931-2197
Regional Water Quality
Control Board (RWQCB): (858) 467-2952
(Notify immediately if surface of water is impacted)
California Office of Emergency
Services (OES): (800) 852-7550
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
County of San Diego Dept.
of Environmental Health (DEH) (619) 338-2386
County of San Diego,
After Hours Emergencies (858) 565-5255
County of San Diego Wastewater Managements Contacts
(Notify one of the following in order listed immediately)
County of San Diego Sanitation
Steve Matthews (858) 204-1605 (Cell) (951) 600-5901 (Home)
County of San Diego Sanitation
Bob Brown (619) 660-6320 (Office) (619) 443-8433 (Home)
(858) 204-1523 (Cell)
County of San Diego Sanitation
Bill Wise (619) 660-2007 (Office) (619) 267-3987 (Home)
(858) 204-1571 (Cell)
County of San Diego Spill Reports (619) 527-5481
Desal Plant must be called in the likelihood of release into the lagoon
Carlsbad Desal Plant or CDP Control Room 760-795-3551
Local Emergency Medical Facility Carlsbad Urgent Care
2804 Roosevelt St, Carlsbad, CA 92008
(760) 720-2804
Material Safety Data Sheets Will be located in the Onsite Office Trailer
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Site Location
Foxes Landing Lift Station
4155 Harrison Street
Carlsbad CA
92008
Site Specifics
Foxes landing Lift station is approximately 100’ away from the Agua Hedionda Lagoon. The
closest local business would be the Wakesports Unlimited Facility, but would not be the only
business affected by a spill.
Above listed in the “Agua Hedionda Contacts” could be the total local business affected in the
surrounding area, and will be contacted as required.
This Project consist of Sewer by-passing, dewatering, and deep excavation all which are
potentials for lagoon contamination/spills
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Project Specific/Spill Prevention:
Hazardous Substance Management: All hazardous substances, sealants, coatings, are to be
managed onsite in a way that prevents release. This project will include groundwater dewatering
throughout most of the construction phases, a temporary by-pass system will also be required
during the pump station switch over, volumes of spills are not anticipated and volumes are
unknown. An overall SWPP/BMP Plan will be submitted and adhered too, with scheduled
inspections and pre/post advent reports with any required sampling. The following general
requirements are to be followed.
They include, but are not limited to:
Container Management:
- All hazardous substance containers must be in good condition and compatible
with the materials stored within.
- All equipment with the potential to leak a hazardous material, i.e.: pumping
equipment, generators, etc. Will require a secondary containment.
- All hazardous substance containers must be accessible and spacing between
containers must provide sufficient access to perform periodic inspections and
respond to releases.
- Empty hazardous substance containers (drums) must have all markers and labels
removed and the container marked with the word ‘empty’.
- Any spills on the exterior of the container must be cleaned immediately.
- Flammable materials stored or dispensed from drums or totes must be grounded
to prevent static spark.
- Do not overfill waste drums. 4”of headspace must remain to allow for
expansion
Good Housekeeping:
- All hazardous substances must be stored inside conex’s or under cover;
- Store hazardous substances not used daily in cabinets, or in designated areas;
- All chemicals that are transferred from larger to smaller containers must be
transferred by use of a funnel or spigot.
- All hazardous substance containers should be closed while not in use;
- Use drip pans or other collection devices to contain drips or leaks from
dispensing containers or equipment;
- Implement preventative maintenance activities to reduce the potential for release
from equipment;
- Immediately clean up and properly manage all small spills or leaks;
- Periodically inspect equipment and hazardous substance storage areas to ensure
leaks or spills are not occurring;
- Use signage to identity hazardous substance storage or waste collection areas;
- Keep all work areas and hazardous substance storage areas clean and in good
general condition.
-
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Secondary containment:
- Store all bulk hazardous materials (>55 gallons) within appropriate secondary
containment, or any sized hazardous material if there is a potential for release to
the environment.
- Secondary containment should be checked periodically, and any spills identified
in secondary containment must be immediately cleaned up and removed.
- [It is NOT anticipated that bulk chemicals will be stored onsite]
- By-pass pumps will be in a containment pan/manmade lined pan.
- Sand bags will be stacked along the low side of the site on the south fence to
prevent spillage of any kind into the lagoon. (Access to the station will be open,
bags will be stacked to the side ready to move.)
Marking/labeling:
- Ensure all hazardous substances, including chemical wastes, are properly marked
and labeled in accordance with all federal, state and local regulations.
- Ensure that hazardous substances transferred to small containers are marked with
the chemicals name (example- “gasoline”) and hazard (example- “Flammable”).
- [It is NOT anticipated that bulk chemicals will be stored onsite]
Vehicle & Equipment Fueling:
- Vehicle equipment fueling procedures herein are designed to prevent fuel spills
and leaks, and reduce or eliminate contamination. This can be accomplished by
using offsite facilities as much as possible, fueling in designated areas only, and
training employees and subcontractors in proper fueling procedures.
- When fueling must take place onsite, we will designate an area away from
drainage courses to be used. Fueling areas will be identified in the SWPPP.
- Dedicated fueling areas will be protected from stormwater runon and runoff, and
should be located away from downstream drainage facilities and watercourses.
Fueling must be performed on level-grade areas.
- Drip pans or absorbent pads will be used during small equipment fueling.
- Large tracked equipment such as excavators and dozers to be fueled in place will
be protected with berms and dikes to prevent runon, runoff, and to contain spills,
if possible plastic sheeting will be placed within berms/dikes.
Concrete Waste Management:
- Concrete management techniques described below in this BMP will be discussed
(such as handling of concrete waste and washout) with the ready-mix concrete
supplier before any deliveries are made.
- Requirements for concrete waste management have been incorporated into
material supplier and subcontractor agreements prior to onsite activities.
- Concrete washout container services will be used at all times when possible and
insure containers are watertight prior to using
- If a container cannot be used temporary concrete washout facilities shall be
constructed above grade or below grade.
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
- Temporary concrete washout facilities should be constructed and maintained in
sufficient quantity and size to contain all liquid and concrete waste generated by
washout operations.
- Temporary concrete washout facilities (type above ground/below grade) should
be constructed as shown on the details below in this BMP
- Plastic lining material should be a minimum of 10 mil polyethylene sheeting and
should be free of holes, tears, or other defects that compromise the
impermeability of the material.
- Washout of concrete trucks should be performed in designated areas only, and
only concrete from mixer truck chutes should be washed into concrete wash out.
- Once concrete wastes are washed into the designated area and allowed to harden,
the concrete should be broken up, removed, and disposed properly.
- Concrete pumpers can be washed out into the concrete trucks and waste can be
brought back to the supplier.
Temporary Above & Below Washout Facility Detail
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Dewatering Operations:
- Site conditions will dictate design and use of dewatering operations.
- All dewatering equipment, sediment tank, pumps, etc. will be inspected prior to
and during setup for potential failures.
- Dewatering discharges should not cause erosion at the discharge point.
Appropriate BMPs will be implemented to maintain compliance with all
applicable permits.
- All pipe, hoses, conveying systems will be checked daily for leaks and or
potential leaks. Care will be taken in the running of pipes as to limit exposure to
equipment/ truck/foot traffic.
- All permitted dewatering will be piped and metered to the existing sewer station.
- Slit fence, berms, dikes, and sand/gravel bags may be required, but will be
available to prevent spills.
- Any significant ground water spills will be contained & non-sewer ground water
spills will be pumped into the sediment tank to be filtered back into the
dewatering system
Employee Training: All employees will receive periodic training on the proper handling of
hazardous substances; spill prevention practices, and emergency response procedures. Training
must include a review of the spill prevention and emergency response plan, and a review of
location and use of emergency response equipment. Training can be recorded through safety
committee meetings, staff training logs, or other equivalent record keeping.
Hazardous Substance Inventory: An inventory must be maintained for all hazardous substance
stored in quantity (<55 gallons), and/or list of locations where non-bulk hazardous substances are
stored (flammable lockers- conex).
Spill Response Equipment: Spill response equipment must be maintained and located in areas
where spills are likely to occur. Spill kits should provide adequate response capabilities to
manage any anticipated spill or release. The following general requirements are to be followed:
They include:
Stock spill clean up kits that are compatible with the hazardous substances stored on site;
Locate spill kits in areas where spills are likely to occur;
Spill kits should be sized to managing an anticipated release (spill equal to the largest
container);
Emergency response equipment should be inspected periodically to ensure that the spill
kit is complete.
Sandbags, Rolls of Plastic, and other perimeter controls will be stored onsite and
available for inspection.
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Spill Response Unit, Spill Kit Contents & First Aid Equipment Onsite:
Locations Spill Equipment Content/Inventory
Spill Kit in Conex 55gl- Spill Kit including 55-gl over pack drum, universal speedy
dry adsorbent, paper towels and pads, personal protective
equipment,(rubber boots, safety goggles, etc.) shovel, brooms,
disposable polyethylene bags, 2” trash pump, 3” trash pump
In Company Truck 10 mil polyethylene film, Large containment pan, First aid kits
(all company trucks), brooms, shovels, rake, universal speedy
dry adsorbent, rags, paper towels, fire extinguishers, portable
generator
Onsite Equipment/Material Excavator, Skid Steer, Wheel Loader, Water truck, additional
equipment can be dispatched within an hour, sandbags,
additional bypass piping to match what’s being used
A weekly Spill Prevention Inspection/Checklist is attached to this plan and shall be completed
and turned in to the Agency. Emergency Response Plan:
The Emergency Response Plan is a site specific plan for dealing with emergencies and shall be
implemented immediately whenever there is a fire, explosion, sewer release, or a hazardous
substance that threatens human health or the environment. The emergency response plan shall be
reviewed and immediately amended whenever:
The plan fails in an emergency;
The facility changes in its design, construction, operation, maintenance, or other
circumstances in a way that increases the potential for fire, explosions, or release
of a hazardous substance;
The list of emergency contacts change; or
The list of emergency equipment changes.
As we see it, the biggest potential for spill will be when we excavate to make the sewer tie-in to
new pump station and we are by-passing the sewer.
Sewer By-Passing
Daily inspections
Daily Inspections will be required by all employees to determine the quality/workability of all by-
passing equipment, ANY faulty/damaged or inadequate equipment will be reported to the site
Superintendent immediately for repair.
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Immediate Response & actions in the event of a spill or release:
In the event of a sewer spill or release, NEWest will immediately take the following measures to
keep the spill from entering sewer or storm drains, spreading off-site, or affecting human health.
In all cases caution and common sense must be maintained with the primary goal being to prevent
and/or limit spill & personal injury.
a) All operations will cease and the spilled sewer or hazard will be contained with
any equipment onsite, sandbags, sheeting. Earthen dams will be constructed to
contain the spill within the area of work.
b) All available trained personnel will don protective equipment to assist with the
spill control and cleanup. All possible efforts will be made to prevent the spill
from exiting the site or shored area. If required, the spill will be diverted away
from critical areas top other areas where it will be more easily cleaned up.
c) In the event of a small to medium sized spill, the contained spill will be captured
via pumps located onsite or by pump truck and discharged to a manhole
downstream of the spill.
If the Force Main can be used:
Summon help or alert others of the release that are found on the “Onsite
Emergency Contacts”
Contact one of the following pump companies and have them bring the
equipment listed.
- Affordable Pipeline Services – JJ Septic Tanks Services or Atlas Pumps
- Godwin (Xylem) Pumps
Equipment needed
- By-pass pump 1,500gpm Minimum @ 60’ of Head
- 50’ Suction Hose
- 50’ + of discharge hose (8” connection)
Discharge hose shall be connected to the existing 8” emergency pumping connection.
If a spill or release cannot be pumped in the force main the following procedures should be implemented:
Summon help or alert others of the release that are found on the “Onsite
Emergency Contacts”
Immediately notify our pumping service, listed in the “onsite emergency
contacts” list and below, request a total capacity of 20,000 gallons
- Affordable Pipeline Services
- Atlas Pumping
- JJ Septic & Drain
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Respond defensively to any uncontrolled spills:
- Build earthen dams, sand bag damns, create earthen sump.
- Use appropriate personal protective equipment when responding to any spill;
- Attempt to shut off the source of the release (if safe to do so);
- Protect drains by use of adsorbent, booms or drain covers (if safe to do so).
- Get traffic Control set up at appropriate work zones
Coordinate response activities with local emergency personnel (fire department
& Police Dept. Notify of work zones);
Notify appropriate agency if a release has entered the environment.
- Type of release
- Volume of release
- Location of release
- Likelihood of release reaching the lagoon
We’ll need to plug the 6” lateral entering manholes
As portable pumper trucks become available
- First trailer pump will go to Foxes landing and pump out of the manhole next to
the station and be required to pump 35,000 GPH This is the first point of backup
- Second, send trailer pump to Kelly drive north of Park Drive
- Third, send trailer to Park dr. west of Neblina
Tanker trucks and Vactors
- All tankers will report to Fox’s landing first
- As more equipment becomes available we will send to the other sites, we will
keep enough tankers to be able to pump 35,000 GPH
Foxes Spill Decant locations Truck Route Map (see attached)
1. Start at Foxes Landing PS
2. Pull up and back truck down Harbor DR to Decant 16C-85 (Sheet 1&2)
3. Pull up to Chestnut/Tyler Decant MH 16A-72 (Sheet 1&2)
4. Pull up to Chestnut/Jefferson Decant MH 10C-32(Sheet 1&2)
5. Pull up to Hemingway East of Cannon RD Decant MH 23A-55 & 23A-56 (Sheet 3)
6. Pull up to Tamarack Ave East of Strata Way Decant MH 7D-6(Sheet 1&2) 7. Only one truck per discharge location will be allowed
Foxes Spill Flow Interception Suction Locations Truck Route Map (see attached)
In the event the city deems it necessary we will move added trucks to intercept flow at this
location to reduce flow to the station.
1. Kelly Dr North of Park Drive MH 17D-14
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Spill Cleanup and Disposal:
In the event of a substance release/spill, cleanup materials are to be properly characterized to
determine if it designates as San Diego County Dangerous Waste. The designated onsite
emergency contact, with the assistance of Affordable Pipeline Pumping Company and other
resources will determine the wastes status prior to disposal.
Reporting a Release:
If a hazardous substance spill has been released to soil, surface water, drains or air the following
notifications (within 24-hours) must be performed, all reports will be submitted to the City:
Fire Department (any release that poses an immediate threat to human health,
property or the environment):
Regional Water Quality Control Board (any release; notification performed
within 24-hours):
California Office of Emergency Services (any water impact release):
County of San Diego Spill Reports (any release):
County of San Diego Dept. of Environmental Health (any release)
When reporting a release prepare to provide the following information (use spill report form):
Your name and telephone number from where you are calling;
Exact address of the release or threatened release;
Date, time, cause and type of incident (fire, sewer, spill, etc.)
Material and quantity of the release, to the extent known;
Current condition of the site;
Injuries, if any; and
Possible hazards to the public health and/or environment outside of the site.
9235 Trade Place Suite A San Diego, CA 92126
Project: Foxes Landing
Hazardous Substance Inventory: Those materials manufactured, stored, used, spilled and/or
generated as a chemical/hazardous waste in quantities >55 gallons.
Hazardous Substance Manufacturer/Location Quantity/Unit of Issue
Concrete Waste Management WM-8
January 2003 California Stormwater BMP Handbook 1 of 7
Construction www.cabmphandbooks.com
Description and Purpose
Prevent or reduce the discharge of pollutants to stormwater
from concrete waste by conducting washout offsite, performing
onsite washout in a designated area, and training employee and
subcontractors.
Suitable Applications
Concrete waste management procedures and practices are
implemented on construction projects where:
Concrete is used as a construction material or where
concrete dust and debris result form demolition activities
Slurries containing portland cement concrete (PCC) or
asphalt concrete (AC) are generated, such as from saw
cutting, coring, grinding, grooving, and hydro-concrete
demolition
Concrete trucks and other concrete-coated equipment are
washed onsite
Mortar-mixing stations exist
See also NS-8, Vehicle and Equipment Cleaning
Limitations
Offsite washout of concrete wastes may not always be possible.
Objectives
EC Erosion Control
SE Sediment Control
TC Tracking Control
WE Wind Erosion Control
NS Non-Stormwater Management Control
WM Waste Management and Materials Pollution Control
Legend:
Primary Objective
Secondary Objective
Targeted Constituents
Sediment
Nutrients
Trash
Metals
Bacteria
Oil and Grease
Organics
Potential Alternatives
None
WM-8 Concrete Waste Management
2 of 7 California Stormwater BMP Handbook January 2003
Construction www.cabmphandbooks.com
Implementation
The following steps will help reduce stormwater pollution from concrete wastes:
Discuss the concrete management techniques described in this BMP (such as handling of
concrete waste and washout) with the ready-mix concrete supplier before any deliveries are
made.
Incorporate requirements for concrete waste management into material supplier and
subcontractor agreements.
Store dry and wet materials under cover, away from drainage areas.
Avoid mixing excess amounts of fresh concrete.
Perform washout of concrete trucks offsite or in designated areas only.
Do not wash out concrete trucks into storm drains, open ditches, streets, or streams.
Do not allow excess concrete to be dumped onsite, except in designated areas.
For onsite washout:
Locate washout area at least 50 feet from storm drains, open ditches, or water bodies.
Do not allow runoff from this area by constructing a temporary pit or bermed area large
enough for liquid and solid waste.
Wash out wastes into the temporary pit where the concrete can set, be broken up, and
then disposed properly.
Avoid creating runoff by draining water to a bermed or level area when washing concrete to
remove fine particles and expose the aggregate.
Do not wash sweepings from exposed aggregate concrete into the street or storm drain.
Collect and return sweepings to aggregate base stockpile or dispose in the trash.
Education
Educate employees, subcontractors, and suppliers on the concrete waste management
techniques described herein.
Arrange for contractor’s superintendent or representative to oversee and enforce concrete
waste management procedures.
Concrete Slurry Wastes
PCC and AC waste should not be allowed to enter storm drains or watercourses.
PCC and AC waste should be collected and disposed of or placed in a temporary concrete
washout facility.
A sign should be installed adjacent to each temporary concrete washout facility to inform
concrete equipment operators to utilize the proper facilities.
Concrete Waste Management WM-8
January 2003 California Stormwater BMP Handbook 3 of 7
Construction www.cabmphandbooks.com
Below grade concrete washout facilities are typical. Above grade facilities are used if
excavation is not practical.
A foreman or construction supervisor should monitor onsite concrete working tasks, such as
saw cutting, coring, grinding and grooving to ensure proper methods are implemented.
Saw-cut PCC slurry should not be allowed to enter storm drains or watercourses. Residue
from grinding operations should be picked up by means of a vacuum attachment to the
grinding machine. Saw cutting residue should not be allowed to flow across the pavement
and should not be left on the surface of the pavement. See also NS-3, Paving and Grinding
Operations; and WM-10, Liquid Waste Management.
Slurry residue should be vacuumed and disposed in a temporary pit (as described in OnSite
Temporary Concrete Washout Facility, Concrete Transit Truck Washout Procedures, below)
and allowed to dry. Dispose of dry slurry residue in accordance with WM-5, Solid Waste
Management.
Onsite Temporary Concrete Washout Facility, Transit Truck Washout
Procedures
Temporary concrete washout facilities should be located a minimum of 50 ft from storm
drain inlets, open drainage facilities, and watercourses. Each facility should be located away
from construction traffic or access areas to prevent disturbance or tracking.
A sign should be installed adjacent to each washout facility to inform concrete equipment
operators to utilize the proper facilities.
Temporary concrete washout facilities should be constructed above grade or below grade at
the option of the contractor. Temporary concrete washout facilities should be constructed
and maintained in sufficient quantity and size to contain all liquid and concrete waste
generated by washout operations.
Temporary washout facilities should have a temporary pit or bermed areas of sufficient
volume to completely contain all liquid and waste concrete materials generated during
washout procedures.
Washout of concrete trucks should be performed in designated areas only.
Only concrete from mixer truck chutes should be washed into concrete wash out.
Concrete washout from concrete pumper bins can be washed into concrete pumper trucks
and discharged into designated washout area or properly disposed of offsite.
Once concrete wastes are washed into the designated area and allowed to harden, the
concrete should be broken up, removed, and disposed of per WM-5, Solid Waste
Management. Dispose of hardened concrete on a regular basis.
Temporary Concrete Washout Facility (Type Above Grade)
Temporary concrete washout facility (type above grade) should be constructed as shown
on the details at the end of this BMP, with a recommended minimum length and
WM-8 Concrete Waste Management
4 of 7 California Stormwater BMP Handbook January 2003
Construction www.cabmphandbooks.com
minimum width of 10 ft, but with sufficient quantity and volume to contain all liquid and
concrete waste generated by washout operations.
Straw bales, wood stakes, and sandbag materials should conform to the provisions in SE-
9, Straw Bale Barrier.
Plastic lining material should be a minimum of 10 mil in polyethylene sheeting and
should be free of holes, tears, or other defects that compromise the impermeability of the
material.
Temporary Concrete Washout Facility (Type Below Grade)
Temporary concrete washout facilities (type below grade) should be constructed as
shown on the details at the end of this BMP, with a recommended minimum length and
minimum width of 10 ft. The quantity and volume should be sufficient to contain all
liquid and concrete waste generated by washout operations.
Lath and flagging should be commercial type.
Plastic lining material should be a minimum of 10 mil polyethylene sheeting and should
be free of holes, tears, or other defects that compromise the impermeability of the
material.
Removal of Temporary Concrete Washout Facilities
When temporary concrete washout facilities are no longer required for the work, the
hardened concrete should be removed and disposed of. Materials used to construct
temporary concrete washout facilities should be removed from the site of the work and
disposed of.
Holes, depressions or other ground disturbance caused by the removal of the temporary
concrete washout facilities should be backfilled and repaired.
Costs
All of the above are low cost measures.
Inspection and Maintenance
Inspect and verify that activity–based BMPs are in place prior to the commencement of
associated activities. While activities associated with the BMP are under way, inspect weekly
during the rainy season and of two-week intervals in the non-rainy season to verify
continued BMP implementation.
Temporary concrete washout facilities should be maintained to provide adequate holding
capacity with a minimum freeboard of 4 in. for above grade facilities and 12 in. for below
grade facilities. Maintaining temporary concrete washout facilities should include removing
and disposing of hardened concrete and returning the facilities to a functional condition.
Hardened concrete materials should be removed and disposed of.
Washout facilities must be cleaned, or new facilities must be constructed and ready for use
once the washout is 75% full.
Concrete Waste Management WM-8
January 2003 California Stormwater BMP Handbook 5 of 7
Construction www.cabmphandbooks.com
References
Blueprint for a Clean Bay: Best Management Practices to Prevent Stormwater Pollution from
Construction Related Activities; Santa Clara Valley Nonpoint Source Pollution Control Program,
1995.
Stormwater Quality Handbooks - Construction Site Best Management Practices (BMPs) Manual,
State of California Department of Transportation (Caltrans), November 2000.
Stormwater Management for Construction Activities; Developing Pollution Prevention Plans
and Best Management Practice, EPA 832-R-92005; USEPA, April 1992.
WM-8 Concrete Waste Management
6 of 7 California Stormwater BMP Handbook January 2003
Construction www.cabmphandbooks.com
Concrete Waste Management WM-8
January 2003 California Stormwater BMP Handbook 7 of 7
Construction www.cabmphandbooks.com
Vehicle and Equipment Fueling NS-9
January 2011 California Stormwater BMP Handbook 1 of 3
Construction www.casqa.org
Description and Purpose
Vehicle equipment fueling procedures and practices are
designed to prevent fuel spills and leaks, and reduce or
eliminate contamination of stormwater. This can be
accomplished by using offsite facilities, fueling in designated
areas only, enclosing or covering stored fuel, implementing spill
controls, and training employees and subcontractors in proper
fueling procedures.
Suitable Applications
These procedures are suitable on all construction sites where
vehicle and equipment fueling takes place.
Limitations
Onsite vehicle and equipment fueling should only be used
where it is impractical to send vehicles and equipment offsite
for fueling. Sending vehicles and equipment offsite should be
done in conjunction with TC-1, Stabilized Construction
Entrance/ Exit.
Implementation
Use offsite fueling stations as much as possible. These
businesses are better equipped to handle fuel and spills
properly. Performing this work offsite can also be
economical by eliminating the need for a separate fueling
area at a site.
Discourage “topping-off” of fuel tanks.
Categories
EC Erosion Control
SE Sediment Control
TC Tracking Control
WE Wind Erosion Control
NS Non-Stormwater
Management Control
WM Waste Management and
Materials Pollution Control
Legend:
Primary Objective
Secondary Objective
Targeted Constituents
Sediment
Nutrients
Trash
Metals
Bacteria
Oil and Grease
Organics
Potential Alternatives
None
If User/Subscriber modifies this fact
sheet in any way, the CASQA
name/logo and footer below must be
removed from each page and not
appear on the modified version.
Vehicle and Equipment Fueling NS-9
January 2011 California Stormwater BMP Handbook 2 of 3
Construction www.casqa.org
Absorbent spill cleanup materials and spill kits should be available in fueling areas and on
fueling trucks, and should be disposed of properly after use.
Drip pans or absorbent pads should be used during vehicle and equipment fueling, unless
the fueling is performed over an impermeable surface in a dedicated fueling area.
Use absorbent materials on small spills. Do not hose down or bury the spill. Remove the
adsorbent materials promptly and dispose of properly.
Avoid mobile fueling of mobile construction equipment around the site; rather, transport the
equipment to designated fueling areas. With the exception of tracked equipment such as
bulldozers and large excavators, most vehicles should be able to travel to a designated area
with little lost time.
Train employees and subcontractors in proper fueling and cleanup procedures.
When fueling must take place onsite, designate an area away from drainage courses to be
used. Fueling areas should be identified in the SWPPP.
Dedicated fueling areas should be protected from stormwater runon and runoff, and should
be located at least 50 ft away from downstream drainage facilities and watercourses. Fueling
must be performed on level-grade areas.
Protect fueling areas with berms and dikes to prevent runon, runoff, and to contain spills.
Nozzles used in vehicle and equipment fueling should be equipped with an automatic shutoff
to control drips. Fueling operations should not be left unattended.
Use vapor recovery nozzles to help control drips as well as air pollution where required by
Air Quality Management Districts (AQMD).
Federal, state, and local requirements should be observed for any stationary above ground
storage tanks.
Costs
All of the above measures are low cost except for the capital costs of above ground tanks that
meet all local environmental, zoning, and fire codes.
Inspection and Maintenance
Inspect BMPs in accordance with General Permit requirements for the associated project
type and risk level. It is recommended that at a minimum, BMPs be inspected weekly, prior
to forecasted rain events, daily during extended rain events, and after the conclusion of rain
events.
Vehicles and equipment should be inspected each day of use for leaks. Leaks should be
repaired immediately or problem vehicles or equipment should be removed from the project
site.
Keep ample supplies of spill cleanup materials onsite.
Vehicle and Equipment Fueling NS-9
January 2011 California Stormwater BMP Handbook 3 of 3
Construction www.casqa.org
Immediately clean up spills and properly dispose of contaminated soil and cleanup
materials.
References
Blueprint for a Clean Bay: Best Management Practices to Prevent Stormwater Pollution from
Construction Related Activities; Santa Clara Valley Nonpoint Source Pollution Control Program,
1995.
Coastal Nonpoint Pollution Control Program: Program Development and Approval Guidance,
Working Group Working Paper; USEPA, April 1992.
Stormwater Quality Handbooks - Construction Site Best Management Practices (BMPs) Manual,
State of California Department of Transportation (Caltrans), November 2000.
Stormwater Management for Construction Activities, Developing Pollution Prevention Plans
and Best Management Practices, EPA 832-R-92005; USEPA, April 1992.
Vehicle & Equipment Maintenance NS-10
January 2011 California Stormwater BMP Handbook 1 of 4
Construction www.casqa.org
Description and Purpose
Prevent or reduce the contamination of stormwater resulting
from vehicle and equipment maintenance by running a “dry
and clean site”. The best option would be to perform
maintenance activities at an offsite facility. If this option is not
available then work should be performed in designated areas
only, while providing cover for materials stored outside,
checking for leaks and spills, and containing and cleaning up
spills immediately. Employees and subcontractors must be
trained in proper procedures.
Suitable Applications
These procedures are suitable on all construction projects
where an onsite yard area is necessary for storage and
maintenance of heavy equipment and vehicles.
Limitations
Onsite vehicle and equipment maintenance should only be used
where it is impractical to send vehicles and equipment offsite
for maintenance and repair. Sending vehicles/equipment
offsite should be done in conjunction with TC-1, Stabilized
Construction Entrance/Exit.
Outdoor vehicle or equipment maintenance is a potentially
significant source of stormwater pollution. Activities that can
contaminate stormwater include engine repair and service,
changing or replacement of fluids, and outdoor equipment
storage and parking (engine fluid leaks). For further
information on vehicle or equipment servicing, see NS-8,
Categories
EC Erosion Control
SE Sediment Control
TC Tracking Control
WE Wind Erosion Control
NS Non-Stormwater
Management Control
WM Waste Management and
Materials Pollution Control
Legend:
Primary Objective
Secondary Objective
Targeted Constituents
Sediment
Nutrients
Trash
Metals
Bacteria
Oil and Grease
Organics
Potential Alternatives
None
If User/Subscriber modifies this fact
sheet in any way, the CASQA
name/logo and footer below must be
removed from each page and not
appear on the modified version.
Vehicle & Equipment Maintenance NS-10
January 2011 California Stormwater BMP Handbook 2 of 4
Construction www.casqa.org
Vehicle and Equipment Cleaning, and NS-9, Vehicle and Equipment Fueling.
Implementation
Use offsite repair shops as much as possible. These businesses are better equipped to handle
vehicle fluids and spills properly. Performing this work offsite can also be economical by
eliminating the need for a separate maintenance area.
If maintenance must occur onsite, use designated areas, located away from drainage courses.
Dedicated maintenance areas should be protected from stormwater runon and runoff, and
should be located at least 50 ft from downstream drainage facilities and watercourses.
Drip pans or absorbent pads should be used during vehicle and equipment maintenance
work that involves fluids, unless the maintenance work is performed over an impermeable
surface in a dedicated maintenance area.
Place a stockpile of spill cleanup materials where it will be readily accessible.
All fueling trucks and fueling areas are required to have spill kits and/or use other spill
protection devices.
Use adsorbent materials on small spills. Remove the absorbent materials promptly and
dispose of properly.
Inspect onsite vehicles and equipment daily at startup for leaks, and repair immediately.
Keep vehicles and equipment clean; do not allow excessive build-up of oil and grease.
Segregate and recycle wastes, such as greases, used oil or oil filters, antifreeze, cleaning
solutions, automotive batteries, hydraulic and transmission fluids. Provide secondary
containment and covers for these materials if stored onsite.
Train employees and subcontractors in proper maintenance and spill cleanup procedures.
Drip pans or plastic sheeting should be placed under all vehicles and equipment placed on
docks, barges, or other structures over water bodies when the vehicle or equipment is
planned to be idle for more than 1 hour.
For long-term projects, consider using portable tents or covers over maintenance areas if
maintenance cannot be performed offsite.
Consider use of new, alternative greases and lubricants, such as adhesive greases, for chassis
lubrication and fifth-wheel lubrication.
Properly dispose of used oils, fluids, lubricants, and spill cleanup materials.
Do not place used oil in a dumpster or pour into a storm drain or watercourse.
Properly dispose of or recycle used batteries.
Do not bury used tires.
Vehicle & Equipment Maintenance NS-10
January 2011 California Stormwater BMP Handbook 3 of 4
Construction www.casqa.org
Repair leaks of fluids and oil immediately.
Listed below is further information if you must perform vehicle or equipment maintenance
onsite.
Safer Alternative Products
Consider products that are less toxic or hazardous than regular products. These products
are often sold under an “environmentally friendly” label.
Consider use of grease substitutes for lubrication of truck fifth-wheels. Follow
manufacturers label for details on specific uses.
Consider use of plastic friction plates on truck fifth-wheels in lieu of grease. Follow
manufacturers label for details on specific uses.
Waste Reduction
Parts are often cleaned using solvents such as trichloroethylene, trichloroethane, or methylene
chloride. Many of these cleaners are listed in California Toxic Rule as priority pollutants. These
materials are harmful and must not contaminate stormwater. They must be disposed of as a
hazardous waste. Reducing the number of solvents makes recycling easier and reduces
hazardous waste management costs. Often, one solvent can perform a job as well as two
different solvents. Also, if possible, eliminate or reduce the amount of hazardous materials and
waste by substituting non-hazardous or less hazardous materials. For example, replace
chlorinated organic solvents with non-chlorinated solvents. Non-chlorinated solvents like
kerosene or mineral spirits are less toxic and less expensive to dispose of properly. Check the
list of active ingredients to see whether it contains chlorinated solvents. The “chlor” term
indicates that the solvent is chlorinated. Also, try substituting a wire brush for solvents to clean
parts.
Recycling and Disposal
Separating wastes allows for easier recycling and may reduce disposal costs. Keep hazardous
wastes separate, do not mix used oil solvents, and keep chlorinated solvents (like,-
trichloroethane) separate from non-chlorinated solvents (like kerosene and mineral spirits).
Promptly transfer used fluids to the proper waste or recycling drums. Don’t leave full drip pans
or other open containers lying around. Provide cover and secondary containment until these
materials can be removed from the site.
Oil filters can be recycled. Ask your oil supplier or recycler about recycling oil filters.
Do not dispose of extra paints and coatings by dumping liquid onto the ground or throwing it
into dumpsters. Allow coatings to dry or harden before disposal into covered dumpsters.
Store cracked batteries in a non-leaking secondary container. Do this with all cracked batteries,
even if you think all the acid has drained out. If you drop a battery, treat it as if it is cracked.
Put it into the containment area until you are sure it is not leaking.
Costs
All of the above are low cost measures. Higher costs are incurred to setup and maintain onsite
maintenance areas.
Vehicle & Equipment Maintenance NS-10
January 2011 California Stormwater BMP Handbook 4 of 4
Construction www.casqa.org
Inspection and Maintenance
Inspect and verify that activity-based BMPs are in place prior to the commencement of
associated activities. While activities associated with the BMP are under way, inspect BMPs
in accordance with General Permit requirements for the associated project type and risk
level. It is recommended that at a minimum, BMPs be inspected weekly, prior to forecasted
rain events, daily during extended rain events, and after the conclusion of rain events.
Inspect BMPs subject to non-stormwater discharges daily while non-stormwater discharges
occur.
Keep ample supplies of spill cleanup materials onsite.
Maintain waste fluid containers in leak proof condition.
Vehicles and equipment should be inspected on each day of use. Leaks should be repaired
immediately or the problem vehicle(s) or equipment should be removed from the project
site.
Inspect equipment for damaged hoses and leaky gaskets routinely. Repair or replace as
needed.
References
Blueprint for a Clean Bay: Best Management Practices to Prevent Stormwater Pollution from
Construction Related Activities; Santa Clara Valley Nonpoint Source Pollution Control Program,
1995.
Coastal Nonpoint Pollution Control Program; Program Development and Approval Guidance,
Working Group, Working Paper; USEPA, April 1992.
Stormwater Quality Handbooks - Construction Site Best Management Practices (BMPs) Manual,
State of California Department of Transportation (Caltrans), November 2000.
Sewer System Management Plan
2019 SSMP Update
Attachment J
SSMP Program Audit Report, April 2019
Final SSMP Program
Audit
City of Carlsbad
Carlsbad, CA April 17, 2019
Final SSMP Program Audit
City of Carlsbad
April 17, 2019 | 1
Contents
1 Purpose ............................................................................................................................................... 3
2 Background ......................................................................................................................................... 3
3 Audit Overview .................................................................................................................................... 1
4 Evaluation of SSMP Effectiveness ...................................................................................................... 2
4.1 Sewer Overflow Performance ................................................................................................... 2
4.1.1 Sanitary Sewer Overflow Rate ..................................................................................... 2 4.1.2 Spills Impacting Surface Waters .................................................................................. 4 4.1.3 Number and Size of Sewer Overflows ......................................................................... 5
5 Strengths and Implementation Accomplishments ............................................................................. 10
6 SSMP Audit Findings and Recommended Corrective Actions ......................................................... 13
Tables
Table 2-1: Active Onsite Managers and Active Data Submitters Included in CIWQS Facility At-A-Glance Report .................................................................................................................................. 3
Table 3-1: SSMP Audit Team Members ....................................................................................................... 1
Table 3-2: SSMP Audit Participants .............................................................................................................. 1
Table 4-1: SSO Rates for Carlsbad’s Collection System during the Audit Period ........................................ 3
Table 4-2: Percent of Sewer Overflow Events and Volume Reaching Surface Waters between January 2016 and December 2018 .................................................................................................. 5
Table 4-3: Spill Categories and Definitions* ................................................................................................. 6
Table 4-4: Number and Size of SSOs (1/1/2016 – 12/31/2018) in City of Carlsbad Collection System ............................................................................................................................................. 7
Table 5-1: Strengths and Implementation Accomplishments ..................................................................... 10
Table 6-1: Audit Finding Definitions ............................................................................................................ 13
Table 6-2: Audit Findings and Recommended Corrective Actions or Opportunities for Improvement .................................................................................................................................. 14
Figures
Figure 4-1: 12-Month Rolling Average of SSOs per 100 Miles of Sewer Pipeline per Year* ....................... 4
Figure 4-2: Number and Percentage of SSOs by Category in Region 9 (January 2016 through December 2018) .............................................................................................................................. 7
Figure 4-3: Number of SSOs by SSO Cause from January 2016 through December 2018 ........................ 8
Figure 4-4: Volume of SSOs by SSO Cause from January 2016 through December 2018 ......................... 9
Final SSMP Program Audit City of Carlsbad
2 | April 17, 2019
Table of Acronyms
Acronym Description
BACWA Bay Area Clean Water Agencies
CCTV Closed circuit television
CIPP Cured in place pipe
City City of Carlsbad
CIWQS California Integrated Water Quality System
FOG Fats, Oils and Grease
GIS Geographical information system
NASSCO National Association of Sewer Service Companies
O&M Operations & Maintenance
PACP Pipeline Assessment and Certification Program
R&R Rehabilitation and Replacement
R9 Region 9
SCADA Supervisory control and data acquisition
SECAP System Evaluation and Capacity Assurance Plan
SSMP Sewer System Management Plan
SSO Sanitary Sewer Overflow
SSO Rate SSOs per 100 miles per year
SWRCB State Water Resources Control Board
WDID Wastewater Discharger Identification
WDR Waste Discharge Requirements
Final SSMP Program Audit
City of Carlsbad
April 17, 2019 | 3
1 Purpose
The purpose of this document is to report the results of the Sewer System Management
Plan (SSMP) Program Audit conducted for the City of Carlsbad’s Utilities Division of
Public Works, covering Calendar Years 2016 through 2018. This report was prepared
pursuant to the requirements included in the State Water Resources Control Board Order
No. 2006-0003 – Statewide General Waste Discharge Requirements for Sanitary Sewer
Systems (WDR). The audit requirements are:
“As part of the Sewer System Management Plan (SSMP), the Enrollee shall conduct
periodic internal audits, appropriate to the size of the system and the number of SSOs.
At a minimum, these audits must occur every two years and a report must be prepared
and kept on file. This audit shall focus on evaluating the effectiveness of the SSMP and
the Enrollee’s compliance with the SSMP requirements identified in this subsection
(D.13), including identification of any deficiencies in the SSMP and steps to correct
them.”
This audit serves as the City’s 2019 SSMP Program Audit.
2 Background
.
Table 2-1: Active Onsite Managers and Active Data Submitters Included in CIWQS Facility At-A-Glance Report
CARLSBAD MWD CS
CIWQS WDID: 9SSO11209
CIWQS Collection System Name: Carlsbad MWD CS
Active Onsite Managers in CIWQS: Don B. Wasko
Active Data Submitters in CIWQS: Timothy G. Smith, Jesse Casteneda
CIWQS Facility At-A-Glance Report Webpage:
https://ciwqs.waterboards.ca.gov/ciwqs/readOnly/CiwqsReportServlet?reportName
=facilityAtAGlance&placeID=643383
Final SSMP Program Audit
City of Carlsbad
April 17, 2019 | 1
3 Audit Overview
This SSMP Program Audit is a third party audit performed by HDR. Table 3-1 lists the
audit team members. Table 3-2 lists the audit participants along with the dates the audit
team met with participants and the topics discussed. This report documents the findings
and corrective actions identified as a result of a review of the Sewer System
Management Plan, audit meetings, and review of additional information provided by City
staff.
Table 3-1: SSMP Audit Team Members
Team Member Organization Role
Michael Flores HDR Lead Auditor
Eric Scherch HDR Subject Matter Expert
Table 3-2: SSMP Audit Participants
Date WDR Provision Section Topics Participants
11/27/2018 D.13.i, ii, iii, and iv Goal, Organization, Legal Authority, O&M Don Wasko, Jesse Castaneda Stephanie Harrison, Timothy Smith, Eric Scherch, Mike Flores,
12/11/2018 D.13.iv & vii O&M, FOG Don Wasko, Jesse Castaneda, Stephanie Harrison, Timothy Smith, Eric Scherch, Mike Flores
12/18/2018 D.13.vi, ix, x & xi Overflow Response, Monitoring, Communication, SSMP Program Audits
Don Wasko, Jesse Castaneda, Stephanie Harrison, Timothy Smith, Eric Scherch, Mike Flores
01/8/2019 D.13.iv & viii SECAP, R&R Planning Don Wasko, Jesse Castaneda, Timothy Smith, Terry Smith, Mike Flores
01/30/2019 All Review of the Audit
Report Findings
Don Wasko, Jesse Castaneda,
Stephanie Harrison, Timothy Smith, Terry Smith, Mike Flores
Final SSMP Program Audit City of Carlsbad
2 | April 17, 2019
4 Evaluation of SSMP Effectiveness
Based on analysis of the sanitary sewer overflow (SSO) trends between January 1, 2016
through December 31, 2019 and the results of the SSMP Program Audit, the overall
program for managing the sewer systems is very effective and continues to operate at a
high level of performance. The City has actively planned and implemented process
improvements to improve program performance.
4.1 Sewer Overflow Performance
The primary measure of the effectiveness of the SSMP is sewer overflow performance.
The primary indicators of sewer overflow performance include:
SSO Rate: Number of SSOs per 100 miles of gravity mainlines and force mains per
year
Spills Impacting Surface Waters: Number of SSOs and Spill Volume Reaching
Surface Waters
High Volume SSO Events: Number of High Volume SSO Events and associated
Spill Volume
This section reviews the City’s recent sewer overflow performance through analysis of
the sewer overflow data reported to the State Water Resource Control Board's (SWRCB)
California Integrated Water Quality System (CIWQS) SSO database.
4.1.1 Sanitary Sewer Overflow Rate
The SSO rates for the City’s collection system place the City in the category of very high-
performing sewer systems. Over the last three years, the City has consistently operated
below 1.0 SSOs per 100 miles per year, which is well below the average of all Region 9
agencies within this time period.
The City has maintained a 12-month rolling average of 0.4 SSOs per 100 miles per
year over the last three years.
The City achieved a sustained 12-month rolling average of zero (0) SSOs per 100
miles for a period of 8 months during the audit period.
The City operates within the Regional Water Quality Control Board’s San Diego Region,
otherwise known as Region 9. The SSO rate of the City is well below the average annual
SSO rate during the same period of the other thirty-two (32) active municipal agencies
operating in Region 9 that do not have sewer lateral responsibility.
Table 4-1 summarizes the minimum, average and maximum 12-month rolling average of
SSOs per 100 miles from January 2016 through December 2018 of the City and all
small, medium and large agencies in Region 9. Figure 4-1 charts the 12-month rolling
average of SSOs per 100 miles of pipelines per year from January 2016 through
December 2018 of the City and all small, medium and large agencies. Agencies less
than 100 miles are categorized as small, agencies between 100 to 500 miles are
categorized as medium, and agencies greater than 500 miles are categorized as large.
Final SSMP Program Audit
City of Carlsbad
April 17, 2019 | 3
The City of Carlsbad is categorized as a medium-sized agency. The City’s SSOs were
not averaged into the results of Region 9 medium-sized agencies.
Table 4-1: SSO Rates for Carlsbad’s Collection System during the Audit Period
Collection System Minimum
SSO Rate
Average SSO
Rate
Maximum SSO
Rate Miles
City of Carlsbad 0.0 0.4 1.0 286
Region 9 – Small Agencies 1.8 3.4 4.5 850
Region 9 – Medium Agencies 1.2 1.5 1.8 3540
Region 9 – Large Agencies 0.8 0.9 1.2 4301
This excellent level of SSO performance is accomplished through a combination of the following
activities:
A highly effective sewer cleaning program with targeted preventive maintenance cleaning
schedules;
High quality sewer cleaning resulting from frequency sewer cleaning quality control and a
focus on field employee training and competence;
Strategic deployment of flow level alarms to provide warning of a potential sewer overflow at
critical locations.
A highly effective pump station maintenance program that includes frequent and effective
preventive maintenance, and lift station monitoring using daily SCADA review;
A program focused on continual improvement with monthly management reviews that are
supported by a leading-edge performance management system. The system provides visual
data analytics and a streamlined ability to drilldown into the data to perform root cause
analysis of program issues.
Final SSMP Program Audit City of Carlsbad
4 | April 17, 2019
Figure 4-1: 12-Month Rolling Average of SSOs per 100 Miles of Sewer Pipeline per Year*
*Note: Agencies were grouped into small (25 to 99 miles), medium (100 to 499 miles) and large (500 miles and greater) for Region 9 municipal agencies with no lateral responsibility. Sewer overflow and mileage data for
various agency size groupings were combined to generate this chart.
4.1.2 Spills Impacting Surface Waters
The City’s collection systems has exhibited a high level of performance with regards to spills impacting surface waters. Between January 2016 and December 2018, zero (0) SSO events resulted in spills reaching drainage channels. The City had a total of 4 SSO events between this
period, with a total of 3,780 gallons spilled and 3,605 gallons recovered and returned to the sewer
system. Zero (0) gallons from these four events was ultimately released to surface waters. Technically, drainage channels are considered surface waters, yet the case can be made that in events where the SSO volume to a drainage channel is fully recovered, there are little to no impacts to receiving waters. No spills to surface waters were recorded during the SSMP audit window of January 2016 to December 2018. The City has not spilled to surface waters since April, 2013.
AUDIT WINDOW
Final SSMP Program Audit
City of Carlsbad
April 17, 2019 | 5
Table 4-2: Percent of Sewer Overflow Events and Volume Reaching Surface Waters between January 2016 and December 2018
R9 Small
Agencies*
R9 Medium
Agencies*
R9 Large
Agencies*
Carlsbad
Miles of Sewer 850 3,540 4,301 286
Number of SSOs 77 153 125 4
Number of SSOs Reaching
Surface Waters
21 26 20 0
Percent of SSO Events
Reaching Surface Waters
27% 17% 16% 0%
Total Volume Spilled 283,493 1,742,407 7,683,232 3,780
Volume Reaching Surface
Waters
28,030 1,255,717 6,872,264 0
Gallons Per 100 Miles
Reaching Surface Waters
3,297 35,472 159,782 0
*Note: Agencies were grouped into small (25 to 99 miles), medium (100 to 499 miles) and large (500 miles and greater) for Region 9 municipal agencies with no lateral responsibility. Sewer overflow and mileage data for various agency size groupings were combined to calculate values for this table.
4.1.3 Number and Size of Sewer Overflows
State Water Resources Control Board categorizes SSO events into Category 1,
Category 2 or Category 3 as shown in Table 4-3. Category 1 SSOs are considered most
severe since all are either large and/or reach surface waters. Category 3 SSOs are least
severe since all are less than 1,000 gallons and do not reach surface waters. Figure 4-2
shows that most of the City’s SSOs are the lower severity Category 3 SSOs.
Final SSMP Program Audit City of Carlsbad
6 | April 17, 2019
Table 4-3: Spill Categories and Definitions*
SSO Category Definition
Category 1 Discharges of untreated or partially treated wastewater of any volume resulting
from an enrollee’s sanitary sewer system failure or flow condition that:
Reach surface water and/or reach a drainage channel tributary to a surface
water; or
Reach a Municipal Separate Storm Sewer System (MS4) and are not fully
captured and returned to the sanitary sewer system or not otherwise
captured and disposed of properly. Any volume of wastewater not
recovered from the MS4 is considered to have reached surface water
unless the storm drain system discharges to a dedicated storm water or
groundwater infiltration basin (e.g., infiltration pit, percolation pond).
Category 2 Discharges of untreated or partially treated wastewater of 1,000 gallons or
greater resulting from an enrollee’s sanitary sewer system failure or flow
condition that do not reach surface water, a drainage channel, or a MS4 unless
the entire SSO discharged to the storm drain system is fully recovered and
disposed of properly.
Category 3 All other discharges of untreated or partially treated wastewater resulting from
an enrollee’s sanitary sewer system failure or flow condition.
* Definitions from Monitoring and Reporting Requirements (Order No. WQ 2013-0058-EXEC)
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Figure 4-2: Number and Percentage of SSOs by Category in Region 9 (January 2016 through December 2018)
The majority of SSOs occurring in the City’s collection systems are in the range of 100 to
999 gallons. Table 4-4 shows the number of SSOs by size category for the Carlsbad
collection system.
Table 4-4: Number and Size of SSOs (1/1/2016 – 12/31/2018) in City of Carlsbad Collection System
Size of SSO (gallons) FY16 FY17 FY18 TOTAL Percent of Total
50,000 and greater 0 0 0 0 0
From 10,000 to 49,999 0 0 0 0 0
From 1,000 to 9,999 0 0 1 1 25%
From 100 to 999 1 0 2 3 75%
From 10 to 99 0 0 0 0 0
From 1 to 9 0 0 0 0 0
Total 1 0 3 4 100%
Final SSMP Program Audit City of Carlsbad
8 | April 17, 2019
Causes of SSOs
Generally, the four main causes of a number of sewer overflows are roots, debris,
grease, and pipe structural failure. In the City of Carlsbad, the four SSOs that occurred
were because of both roots and construction-other. These causes account for 100
percent (i.e., 50 percent each) of all SSOs occurring between January 2016 and
December 2018 as shown in Figure 4-3. These same two causes also account for 100
percent of the volume spilled from the collection system as shown in Figure 4-4, with
Construction-Other failure accounting for approximately 89 percent of the total volume
released over that time period due to the one large SSO event that was caused by a
construction related incident.
Figure 4-3: Number of SSOs by SSO Cause from January 2016 through December 2018
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Figure 4-4: Volume of SSOs by SSO Cause from January 2016 through December 2018
Final SSMP Program Audit City of Carlsbad
10 | April 17, 2019
5 Strengths and Implementation
Accomplishments
Documenting the strengths and implementation accomplishments of the SSMP is as important as determining the deficiencies and corrective actions. The City should both
recognize the areas of strength in sewer system management as well as continue building upon success in these areas. Table 5-1 includes the strengths and implementation accomplishments that were identified during the audit.
Table 5-1: Strengths and Implementation Accomplishments
WDR Provision Strengths and Implementation Accomplishments
D.13.ii –
Organization
The City has created an Asset Manager position with responsibilities for
collection system data analytics, performance management support,
maintenance optimization support, and collection system repair,
rehabilitation and replacement decision-making.
D.13.iv – Operations
and Maintenance
Program – Up-to-
date Mapping
The City has implemented a mobile data collection technology enabling
field crews to access sewer mapping in the field and to document and
submit GIS mapping corrections electronically. This has significantly
improved the workflow, documentation, and timeliness of GIS mapping
corrections. Over the past few years the use and effectiveness of this
technology has been continuously improved.
D.13.iv – Operations
and Maintenance
Program –
Preventive
Maintenance
The City has achieved an average SSO rate of 0.47 SSOs per 100 miles
over a three-year period between January 2016 and December 2018. The
main factor leading to this level of performance is the aggressive and
effective preventive maintenance program for pipelines and pump stations.
All pipelines under 12 inches in diameter are cleaned at least once every
48 months, with many cleaned more frequently depending on historical
knowledge of maintenance issues associated with specific pipe segments.
The City uses Root X chemical root control to address root intrusion when
determined to be more cost-effective than sewer cleaning.
The City has a very strong lift station preventive maintenance program and
plan. There have been no lift station-related SSOs in the past 7 years.
D.13.iv – Operations
and Maintenance –
Cleaning Quality
Control
The City has implemented a sewer cleaning quality control program to
televise pipe segments after cleaning is performed to quantify the quality
and effectiveness of sewer cleaning activities. Results are utilized to
provide feedback and to support cleaning crews with honing their cleaning
work practices.
The City performs sewer cleaning quality control on at least 5 percent per
year of pipes cleaned. Feedback from this program is used to improve
cleaning practices.
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WDR Provision Strengths and Implementation Accomplishments
D.13.iv – Operations
and Maintenance
Program – Condition
Assessment
The City has condition assessment inspection data in a readily available
format for analysis of approximately 93% of their gravity sewers and 76%
of manholes and is continuing to perform condition assessment.
D.13.iv – Operations
and Maintenance
Program –
Rehabilitation
Planning
The City has developed an Asset Management Master Plan that identifies
CIP recommendations for condition projects for gravity sewers and
manholes. The City has developed a standardized decision logic for
processing CCTV data and risk model for identifying sewer and manhole
renewal and monitoring that is used to identify CIP recommendations for
condition projects.
The City has adopted a standard NASSCO PACP CCTV data format and
procedures for gravity sewer inspection data collection.
The City did not experience a structural condition-caused SSO during the
audit period.
D.13.vi – Overflow
Emergency
Response Plan
The City participates every two months in a Collection System Managers
Meeting with neighboring agencies. Annually, these agencies get together
to perform desktop and field drills for interagency emergency response
preparedness. This is a best practice.
D. 13.viii – System
Evaluation and
Capacity Assurance
Program
The City has completed an update of the sewer master plan including
enhancements to the hydraulic model to incorporate new growth and flow
projections.
The City has completed an evaluation of the collection system hydraulics
for peak dry weather and peak wet weather flows for both existing
condition and future build-out conditions. The evaluation has resulted in
the identification of an updated set of capacity deficiencies associated with
existing and build-out conditions.
The City has identified a set of capacity projects to address all of the
deficiencies failing the specified design criteria.
The City identifies sewershed sub-basins with potential for
inflow/infiltration. Sub-basins with potential I/I issues are evaluated further.
In some cases this triggers smoke testing studies to identify inflow defects
and the City addresses these issues when identified.
The City has not experienced any capacity-related SSOs in the past 8
years.
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12 | April 17, 2019
WDR Provision Strengths and Implementation Accomplishments
D.13.ix – Monitoring,
Measurement, and
Program
Modifications
The City has implemented a leading edge collection system performance
management system. The performance management system is directly
linked to maintenance and GIS databases and enables the collection
system management team to quickly review overall SSO performance,
collection system maintenance production, and contributing factors
inhibiting collection system performance. The interface of the performance
management system is visual and provides a direct linkage to the
underlying data providing the City with a quick and effective means to
assess performance and root causes of performance issues.
D.13.iv - O&M
Program
The City has initiated a force main inspection program and has inspected
all force mains with either Smartball technology or CCTV inspection
technology. The City inspected all force mains with one or both of these
approaches during the audit period.
The City performed pressure monitoring of six (6) force mains for 30-day
period in conjunction with condition assessment activities.
D.13.iv - O&M
Program
The City eliminated two pump stations through changes to the
configuration of the sewer system.
D.13.iv - O&M
Program
The City has strategically deployed flow level alarms to warn collection
system operations and maintenance of potential sewer overflow conditions
at critical locations.
G. Monitoring and
Reporting
Requirements
The City developed a Water Quality Monitoring Plan that includes
mitigation protocols for water quality monitoring of SSOs over 1,000
gallons in certain water bodies.
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6 SSMP Audit Findings and Recommended
Corrective Actions
Several audit findings were identified during the audit and are in this Section along with
recommended corrective actions. Audit findings are divided into three categories and
coded with a letter, as defined in Table 6-1. No compliance deficiencies were identified
as a result of this audit, therefore, this audit finds the City of Carlsbad in compliance with
the WDR. Major and minor non-conformance findings and recommended corrective
actions are included in Table 6-2, along with a status update for actions related to these
findings. The table also includes opportunity findings and associated opportunities for
improvement.
Table 6-1: Audit Finding Definitions
Finding Category Finding Type Finding Definition
A Non-Compliance A process or outcome resulting in the SSMP or SSMP Program implementation not currently being in compliance with the WDR/SSMP requirements.
B-major Major Non-Conformance Moderate to high risk that a statement in the SSMP is not fully conformed to the WDR. Moderate to high risk to the effectiveness of the SSMP implementation.
B-minor Minor Non-Conformance Low risk that a statement in the SSMP or SSMP Program implementation is not fully
conformed to the WDR. Low risk to the effectiveness of the SSMP implementation.
C Opportunity Opportunity to improve effectiveness of SSMP program implementation. These findings and opportunities are not required by the WDR and are focused on enhancements to business processes, practices, and documentation.
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Table 6-2: Audit Findings and Recommended Corrective Actions or Opportunities for Improvement
WDR Provision Audit Finding Recommended Corrective Action or Opportunity for Improvement Finding Category Status
D.13.i – Goal The goals included in the 2016 SSMP
update include a mixture of goals and
specific operating objectives. Some of the
objectives included in the goal section are
more appropriately documented in other
sections of the SSMP.
The City may want to consider updating the Goal
section to focus on the City’s sewer system
management goals and how they relate to the
City’s overall goals and values. Specific
operating objectives can be moved into the
relevant SSMP sections for operation and
maintenance, capacity assurance, and SSO
response.
C Addressed in 2019 SSMP update.
D.13.ii – Organization The organization chart is out-of-date. Create a functional organization chart for the
SSMP program showing key positions
responsible for implementation of elements of
the program and lines of authority.
B-minor Addressed in 2019 SSMP update.
D.13.ii – Organization The Organization section currently only
shows one “Onsite Manager” in CIWQS and
therefore only one person assigned a
Legally Responsible Official (LRO).
The City may want to consider adding a second
duly authorized representative (i.e., secondary
LRO) to serve as a backup LRO when the
primary LRO is not available.
C Addressed during 2019 SSMP update.
D.13.ii – Organization The Organization section includes several
paragraphs relating to SSO reporting.
Although important to the SSMP, these
paragraphs are more appropriate for the
Overflow Emergency Response Plan
section of the SSMP.
Remove these sections from the Organization
section and address reporting in the Overflow
Emergency Response Plan section of the
SSMP.
C Addressed in 2019 SSMP update.
D.13.iv – O&M Program – Up-to-Date Mapping
The SSMP does not document the
processes for how system mapping is kept
up-to-date.
Update the SSMP to document the processes
the City employs to keep system mapping up to
date.
C Addressed in 2019 SSMP update.
April 17, 2019 | 15
WDR Provision Audit Finding Recommended Corrective Action or Opportunity for Improvement Finding Category Status
D.13.iv – O&M Program – Preventive Maintenance
The SSMP does not document aspects of
the City’s sewer preventive maintenance
program such as use of chemical root
control, how manhole inspections data is
utilized, details regarding force main
inspection and preventive maintenance.
Update the SSMP to include additional detail
regarding the City’s use of chemical root control,
the use of manhole inspection data to identify
manhole repair needs, and the force main
inspection and preventive maintenance program.
B-minor Addressed in 2019 SSMP update.
D.13.iv – Operations and Maintenance Program – Condition Assessment
The City’s previous goal is to perform CCTV
inspection on a 3-5 year cycle. The City
has updated the inspection schedule from
this schedule.
Update the SSMP to document the current
planned inspection schedule for gravity sewers
and identify the inspection schedule for manhole
inspections.
B-minor Addressed in 2019 SSMP update.
D.13.iv – Operations and Maintenance Program – Rehabilitation Planning
The City has developed a decision logic for
supporting rehabilitation planning and
decision making to support short term and
long-term decision making.
Update the SSMP to include a description of the
rehabilitation planning process including the
decision logic and risk model.
B-minor Addressed in 2019 SSMP update.
D.13.iv – Operations and Maintenance Program – Rehabilitation Planning
City staff evaluate pump stations through
inspections, preventative maintenance and
review of SCADA data. The issues
identified in these evaluations are prioritized
for risk mitigation and incorporated into
repairs or CIP projects appropriately.
Update the SSMP to include a description of the
rehabilitation planning process for pump
stations.
C Addressed in 2019 SSMP update.
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WDR Provision Audit Finding Recommended Corrective Action or Opportunity for Improvement Finding Category Status
D.13.v – Inspection of Rehabilitation Projects
City staff responsible for inspecting
installation of Cured-In-Place pipe
installation may benefit from NASSCO’s
Inspection Training Certification Program
for inspecting pipeline trenchless renewal.
The City should consider the cost/benefit of
training and certifying construction inspectors
responsible for inspecting the installation of
Cured-In-Place pipe for sewer rehabilitation. The
training covers: CIPP defects and how they
affect installation, an overview of CIPP
technology, and process of field installation of
CIPP, performance specifications, and proper
application of CIPP technology.
C
D.13.vi – Overflow Emergency Response Plan
The City’s Overflow Emergency Response
Plan has portions that are out-of-date.
Update the Overflow Emergency Response Plan
to include: a definition for Private Lateral
Sewage Discharge; additional detail for initial
response activities; distinctions between
response actions during regular work hours and
after work hours; procedures for cleaning pipes
upstream and downstream of blocked pipe
segments; protocols for post-SSO CCTV
inspection; update of water quality monitoring
protocols; update of Post-SSO Review protocols;
update of contact information.
B-minor Addressed in 2019 SSMP update.
April 17, 2019 | 17
WDR Provision Audit Finding Recommended Corrective Action or Opportunity for Improvement Finding Category Status
D.13.vii – FOG Control Program
The City’s FOG source control program
lacks follow-through when it comes to
enforcing FOG source control requirements.
The City is performing FOG source control
inspections and knows where potential
FOG discharge issues are occurring, yet is
not using available enforcement authorities
to ensure source control requirements are
being followed. The City compensates for
this with aggressive sewer cleaning on pipe
segments with known grease accumulation
issues, which to date has achieved reduced
SSO risk on these pipe segments.
Update the SSMP to clarify the City’s practices
regarding a focus on educating FSEs on best
management practices and source control
requirements with the goal of voluntary
compliance. Update the SSMP to clearly state
the alternative strategy of enhanced cleaning on
pipe segments with known FOG accumulation
issues to reduce risk of sewer overflows on
these segments.
The City may want to update FOG enforcement
authorities to provide the City with appropriate
compliance tools giving City staff the ability to
escalate consequences in cases of chronic non-
compliance.
The City may want to consider developing
protocols for triggering the use of enforcement
authorities to drive compliance in cases where
known FOG accumulation is resulting in
increased sewer cleaning.
B-major
D.13.viii – System Evaluation & Capacity Assurance Plan
System capacity evaluation criteria may
differ from the referenced Volume 1 of the
City’s engineering standards.
Update the SSMP to reference the Master Plan
assessment criteria.
B-minor Addressed in 2019 SSMP update.
D.13.viii –
System Evaluation & Capacity Assurance Plan
The reasons for updates to capacity CIP
project schedules are discussed, but not
typically documented.
Consider documenting the reason for schedule
changes as part of CIP updates.
B-minor
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WDR Provision Audit Finding Recommended Corrective Action or Opportunity for Improvement Finding Category Status
D.13.viii – System Evaluation & Capacity
Assurance Plan
Some reference documents are outdated. Update references in the SSMP and provide
links to documents that are available online.
Identify the location for each document
referenced in the SSMP for quick retrieval.
B-minor Addressed in 2019 SSMP update.
D.13.viii – System Evaluation &
Capacity Assurance Plan
The capacity assessment utilizes a 10-year
design storm event that aligns with the City
of Vista design storm which shares sewer
interceptor systems with the City.
Flow monitoring was evaluated and aligned
with the hydraulic model and model
calibration which included a check on how
the regional systems are being monitored.
The City also meets regularly with member
agencies to discuss ongoing interagency
issues (e.g. flow monitoring, I/I, future
development projects)
Water billing data was used to verify
equivalent dwelling unit assumptions.
Update the SSMP to include this information. C Addressed in 2019 SSMP update.
April 17, 2019 | 19
WDR Provision Audit Finding Recommended Corrective Action or Opportunity for Improvement Finding Category Status
D.13.viii – System Evaluation & Capacity
Assurance Plan
The City hydraulic model is a fully dynamic
InfoSWWM model and includes all gravity
sewers.
The hydraulic model addresses the decline
of flows in each basin and the seasonal
changes that include additional flow in the
summer due to tourism. As a result of the
low flows, the City is evaluating odor
complaints and cleaning schedules.
Hydraulic model capacity information is
utilized in the gravity sewer risk model.
Update the SSMP to include this information. C Addressed in 2019 SSMP update.
D.13.viii – System Evaluation & Capacity Assurance Plan
The City performs inflow and infiltration
analysis including identifying inflow,
contacting property owners if caused by
private infrastructure and major deficiencies
are addressed.
Update the SSMP to include this information. C Addressed in 2019 SSMP update.
D.13.ix –
Monitoring, Measurement, and Program Modifications
The City has a leading edge performance
management system for diagnosing
collection system performance failures and
determining systemic organization and
program issues associated with these
potential failures. The narrative in the
SSMP should convey the City’s
accomplishment of moving well beyond
compliance in this area.
Update the SSMP to highlight the City’s leading
edge practices in collection system performance
management.
C Addressed in
2019 SSMP update.
D.13.x – SSMP Program Audits The last SSMP Program Audit is dated
January 2016. The City should have
performed an audit in early 2018.
Perform an SSMP Program Audit as soon as
practicable.
A Addressed with this SSMP Audit Report
Final SSMP Program Audit City of Carlsbad
20 | April 17, 2019
WDR Provision Audit Finding Recommended Corrective Action or Opportunity for Improvement Finding Category Status
D.13.x – SSMP Program Audits The 2016 SSMP Program Audit uses the
BACWA SSMP Annual Audit Report
developed for Region 2 SSMP Audit
reporting. SWRCB has stated that they do
not consider use of this format as meeting
the intent of the SSMP Program Audits
element.
If the City continues to use the BACWA SSMP
Program Audit Long Form, consider including
additional narrative to the SSMP Program Audit
report to document why questions are answered
either Yes or No and include backup
documentation appropriate. The City should also
consider documenting audit meeting dates,
participants and topics discussed.
B-major Addressed with this SSMP Audit Report
D.13.x – SSMP Program Audits The SSMP Program Audits section of the
SSMP is out-of-date.
Update the SSMP Program Audits section to
describe current SSMP Program Auditing
practices. Include an SSMP Program Audit
schedule for future audits.
B-minor Addressed in 2019 SSMP update.
D.13.xi – Communication Program
The SSMP does not describe the Member
Agency Managers meeting or the Collection
Managers meeting as a forum that is
periodically used to communicate collection
system issues with neighboring agencies.
Update the SSMP to describe the Member
Agency Managers meeting and Collection
Managers Meeting and the opportunity these
forums provide in communicating issues with
neighboring agencies and fostering collaboration
and interagency assistance.
B-minor Addressed in 2019 SSMP update.
D.13.xi – Communication Program
The section does not describe current
outreach practices in neighborhoods,
schools and use of social media.
Update the SSMP to describe current outreach
practices employed by the City.
B-minor Addressed in 2019 SSMP update.
D.13.xi – Communication Program
The City’s website does not explain the
WDR or provide the public with a means to
provide input on the SSMP or SSMP
program implementation.
Consider updating the City’s website to
communicate the WDR and provide a link to the
City’s Operational Report on the SWRCB
CIWQS site. Consider updating the website to
provide contact information for the public to
provide input to the SSMP and SSMP program
implementation.
C