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HomeMy WebLinkAboutCT 06-22; ROMERIA POINTE CONDOMINIUMS; STORM WATER MANAGEMENT PLAN; 2005-01-14I. I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil EngineerslSurveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453'·. Fru(760) 434-5831 STORM WATER MANAGEMENT PLAN for Romeria Pointe CT 06-221 CP 06-15 9-Units Lots 392 & 393, Map 6600 APN 216-300-12 & 13 Prepared: January 14, 2005 Update: October 22, 2007 RECEIVED NOV 21 2007 ENGINEERING DEPARTMEN'j I I I I I· I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB4124 I 2 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 635-0839 REPORT INDEX INTRODUCTION _________________________ Page 1 1. PROJECT DESCRIPTION Page 1 1.1 Project Location Page 1 1.2 Project Description Page 1 1.3 Physical Features Page 2 1.4 Land Use Page 2 2. WATER QUALITY ENVIRONMENT Page 2 2.1 State Impaired Waterbodies "303(d) list Page 2 2.2 Beneficial Uses Page 2 2.3 . Hydrologic Unit Contribution Page 3 2.4 Potential Effects to the Water Quality Environment Page 3 2.5 Surface Water Quality Objectives Page 4 2.6 Groundwater Page 4 3. CHARACTERIZATION OF PROJECT RUNOFF Page 4 3.1 Watershed Contribution Page 4 3.2 Storm Water Quality At Outflow Page 5 3.3 Proposed Storm Drain System Description Page 5 3.4 100-Year Return Event Peak Flow Computations Page 5 3.5 Water Quality Treatment Flow -Based on Water Quality Design Storm Page 5 3.6. Site Plans-and Adjacent Land Uses Page--5-:- 3.7 Soil Characteristics Page 5 4. MITIGATION MEASURES TO PROTECT WATER QUALITY Page 6 4.1 Storm Water Requirements Applicability Page 6 4.2 Pollution Prevention BMPs Page 6 4.3 Treatment BMPs Page 8 4.4 Source Control BMPs Page 8 4.5 Treatment Control BMPs Page 8 4.5.1 Continuous Deflective Separation Units Page 8 I I I I I I I I- I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 635-0839 REPORT INDEX (Continued) 5. MAINTENANCE STORMWATER MANAGEMENT PROGRAM __ ~ ______ Page 9 5.1 Maintenance Responsibility Page 9 5.2 General Maintenance Activities for BMPs Page 9 5.2.1 General Preventative Maintenance Page 9 5.2.2 General Corrective Maintenance Page 10 5.2.3 General Inspection Frequency Page 10 5.3 Continuous Deflective Separation Units Page 10 5.3.1 Inspection Frequency Page 11 5.3.2 Aesthetic and Functional Maintenance Page 11 5.3.2.l Aesthetic Maintenance Page 11 5.3.2.2 Functional Maintenance Page 11 6. PROGRAM EVALUATION Page 12 7. FISCAL RESOURCES Page 12 8. SUMMARY CONCLUSIONS Page 12 I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 APPENDIX A APPENDIX B APPENDIX C APPENDIX D APPENDIX E APPENDIX F APPENDIX G APPENDIX H APPENDIX I APPENDIX J 2525 Pio Pico Drive • Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 434-5831 APPENDICES Vicinity Map Original Site Development Grading Plan Proposed Conditions Map State Impaired Waterbodies "303(d) List" Waterbody Beneficial Uses Water Quality Standards Water Quality Treatment Flow Computations Stormwater Separator Product Data Proposed Site Grading Plan Storm Water Requirements Applicability Checklists I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 434-5831 October 22, 2007 STORM WATER MANAGEMENT PLAN for ROMERIA POINTE CT 06-221 CP 06-15 Project: Romeria Pointe Townhomes ~ 9 Units Lots 392 & 393, Map 6600 ~ APN 216-300-12 & 13 INTRODUCTION The purpose of this Storm Water Management Plan (SWMP) is to address the water quality impacts resulting from the construction of the 9-unit Romeria Pointe Townhomes condominium project in Carlsbad. Best Management Practices (BMPs) will be utilized to provide a long-term solution to water quality for both the pre-and post-construction phases of the project. This SWMP provides a template to ensure the effectiveness of the BMPs through proper maintenance based on long-term fiscal planning. This SWMP is subject to revision as needed by the engineer. 1. PROJECT DESCRIPTION The scope of the proposed project is to construct three three-level, retained and on-grade base structures consisting of residential living areas, garages, driveways and parking areas. The subj ect site is vacant land originally mass-graded as part of the La Costa South Unit No.5 development in 1970 (approximate) and area infrastructure improvement construction as part ofthe La Costa South Unit No.5 development in 1972. There has been no further development of the site since that time. 1.1 Project Location: The subject property is located within the City of Carlsbad and is part of the La Costa South Unit No.5 development. The subject property is also known as Lot ~92 an4 Lot 393 of Map 6600, Assessor's Parcel Number 216-300-12 and 13, and encompasses 0.71 acres. Existing Lot 392 and Lot 393 will be consolidated into a single lot with the recordation of a subdivision map as part of the fmal engineering phase of the project. The project is bounded-by Romeria 'Street to the east, fully-developed residential condominium projects to the south and west, and Gibraltar Street to the north. Vehicular access from the public right of way is from Romeria Stre~t to the east. See Appendix A for a project site vicinity map. 1.2 Project Description: The project site is 0.71 acres in total area and is currently undeveloped vacant land. Originally, the site was rough pad-graded in 1970 (approximate) as part of La Costa South Unit No.5 development phase (reference City Drawing 169-4A, sheet 3 of 5). See Appendix B for a reduced copy of the original site grading plan. The three new structures (Buildings A, B & C, south to north) will be stepped to follow the original pad grading completed for the site. The garage floor levels of Buildings A & B retain the finish grades on the south side of these structures. Building C will be constructed on grade. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 1 of 14 Pages I I I I I I I I I I I I ·1 1 1 I 1 I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pi co Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760)635-0839 The following tabulation presents the existing and proposed site uses broken down by use category. Table I: Site Use Existing Use Proposed Use Existing %of Change Proposed %of Change Condition Condition (sf) Site (sf) (sf) Site (%ofsite) Pavement 0 0% +18,223 18,223 10.3% +58.8% Landscape 30,979 100.0% -27,775 3,204 58.9% -89.6% Building 0 0% +9,552 9,552 30.8% +30.8% Total: 30,979 100.0% -30,979 100.0% - (0.71 ac.) (0.71 ac.) See Appendix C for a proposed conditions map of the subject site. 1.3 Physical Features: The subject site is an irregular-shaped is approximately 180-feet deep (in the general east-west direction, maximum) and approximately 240-feet wide (in the gener,!-l north-south direction, maximum) along the Romeria Street frontage. The topography of the site slopes downward along the North axis ofthe site with a 40-foot overall vertical relief (SE comer: elevation 95; NW comer: elevation 55). The site consists of two generally level pads, the upper pad grade at elevation 90, the lower pad grade at elevation 75. A majority of the site runoff from the site's existing manufactured slopes and pads drain to Romeria Street and Gibraltar Street gutters via surface flow. A minor amount of the upper pad runoff and slope face drains to a concrete-lined drain swale on the East slope face. Runoff from the swale and street gutters are collected at an existing curb inlet located on Gibraltar Street near the northwest comer of the site. 1. 4 Land Use: The subject property is zoned residential, medium density (RD-M) as part ofthe City's General Plan, as are the surrounding developed sites. ·2. WAT-ER~~UALITY ENVIRONMENT 2.1 State Impaired Waterbodies "3 03 (d) list": The subject site is a part of Hydrologic Unit 904.51,. San Marcos Creek (west reach) and the Batiquitos Lagoon. These hydrologic sub-areas are not listed on the July, 2003 list as an impaired water body (see Appendix D). San Marcos Creek is located approximately 600 feet north of the subject property and Batiquitos Lagoon is located approximately 1.4 miles to the west. 2.2 Beneficial Uses: Beneficial uses within the Batiquitos Lagoon watershed as designated in the State Water Resources Control Boar~'s San Diego Region Basin Plan listing beneficial uses for inland surface waters, coastal waters, reservoirs and lakes, and groundwater. This list can also be fOl,l11d in the Caltrans water quality inventory database. The definitions of the beneficial uses are presented in Appendix E. The listed beneficial uses for the Batiquitos"Lagoon watershed are Preservation of Biological Habitats (BIOL); Estaurine Habitat (EST); Marine Habitat (MAR); Rare, Threatened or Endangered Species (RARE); Water Contact Recreation (RECl), Non-Contact Water Recreation (REC2); and Warm Freshwater Habitat (WARM). \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 2 of 14 Pages I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax-(760) 635-0839 _ 2.3 Hydrologic Unit Contribution: The project site is located within the limits of Basin D of the Batiquitos Lagoon watershed as defined by the City's Master Drainage and Storm Water Quality Management Plan dated March 1994. Basin D is depicted on the Plate 4 fold-out (sheet 4 of 4, City drawing 296-5 - a modified portion is presented above)_ Plate 4 of the drainage master plan shows the relative -locations of the affected water bodies and the project site. 2.4 Potential Effects to the Water Quality Environment: The City of Carlsbad Storm Water Standards Manual (dated April, 2003) contains Table 2 -Anticipated and Potential Pollutants Generated by Land Use TyPe: This table suggests that pollutants that are possible from various types of developments. The potential pollutants listed for Commercial Development and Parking Lots are as follows: • Sediment :.-Nutrients • Trash & Debris • Oxygen Demanding Substances • Oil & Grease • Heavy Metals • Bacteria & Viruses • Pesticides Table 2 makes no distinction between urban, suburban or rural types of development. The potential for these pollutants in storm water is a function of many factors that include development density, the physical design of the project site, location of the project, the presence or absence of off-site discharges through the property and the like. The primary constituents of concern in Hydrologic Unit 904.51, Batiquitos Lagoon, of which this project site is a contributor, is sediment, nutrients, petroleum chemicals, toxics and trash. The source/activity that this project would contribute is urban runoff. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 3 of 14 Pages .1 1 I 1 I 1 I I I 1 I I I I I 1 I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102 • Carlsbad, CA 92008 • Telephone (760) 753-1453 • Fax (.760) 635-0839 Considering the specifics of the subject project, the following lists the potential pollutants and how they will be mitigated in the final design: • Sediments -Proposed slopes and graded areas will be planted and irrigated. Parking, driveway and sidewalk areas will be swept periodically. Site runoff will be bio-treated by flowing through the landscaped-lined perimeter drain swales. • Nutrients -Fertilizers shall be applied according to all federal, state and local regulations. Slope and landscape areas shall be monitored and maintained to reduce bare soil areas. • Trash & Debris -All trash containers shall have attached lids. Trash containers shall be located in enclosure areas having sloped concrete pavement with walls or curbs on three sides to prevent runoff from adjoining areas and gated in front. The driveway, guest parking and sidewalk areas will be swept periodically. Visible surface trash shall be picked up on a weekly basis. Landscape vegetation will be disposed of in the trash or taken off-site to a recycling center. • Oxygen Demanding Substances -See the "Trash & Debris" section listed above. • Oil & Grease -The likely source of oils and greases expected to be present will be from automobiles. The enclosed private garages are expected to keep the oil and grease from this sowce isolated. The exterior guest parking areas will be swept periodically and will drain to landscaped-lined drain swales where feasible. Catch basin inserts or storm water separator units will be used to treat storm water collected by catch basins receiving runoff directly from paved driveway areas. • Heavy Metals -The likely source of heavy metals heavy metals expected to be present will be from automobiles. The enclosed private garages are expected to keep the heavy metals from this source isolated. The exterior guest parking areas will be swept periodically and will drain to landscaped- lined drain swales where feasible. Catch basin inserts or storm water separator units WIll be used to treat storm water collected by catch basins receiving runoff directly from paved driveway areas. • Bacteria & Viruses -These are not expected to be a constituent from this project. • Pesticides -Pesticides will be applied in accordance with all federal, state and local regulations. Pesticide use shall be kept to a minimum and shall be used only when absolutely necessary. 2.5 Surface Water Quality Objectives: The stated purpose of the discharge requirements (as stated by the San Diego Regional Water Quality Control Board) is to "reduce the negative impacts to receiving waters resulting from urban runoff frDm-deYelopment If' Thls general objective is then implemented by the' use-of Best Management Practices (BMPs) for both the construction period and the post-construction period. See Appendix F for existing water quality standards database for the Batiquitos Lagoon. There are no Water Quality Objectives for this water body reach. 2.6 Groundwater: Beneficial uses listed in the San Diego Region Basin Plan include municipal and domestic water supply, agricultural supply, industrial service supply industrial process supply, cold and warm water habitat, non-contact water recreation and wildlife habitat. The Batiquitos Lagoon and San Marcos Creek water bodies are not listed with a "groundwater" beneficial use. 3. CHARACTERIZATION OF PROJECT RUNOFF 3.1 Watershed Contribution: The existing site is 0.71 acres in size and is located within the Batiquitos Lagoon / San Marcos Creek watershed which is approximately 46 square miles in area. The subject site represents less than 0.003% of the total Batiquitos Lagoon watershed area. The entire project site and surrounding areas discharge to the San Marcos Creek, and ultimately to the Batiquitos Lagoon by way of an existing public 42-inch and 48-inch RCP storm drain system located along the westerly site limits, that crosses Gibraltar Street and extends North to San Marcos Creek. The project site and general area runoff is \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 4 of 14 Pages I I I I I I I I I- 1 I I I I 1 I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 _ 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 635-0839 directed via street flow to an existing curb inlet located on Gibraltar Street near the northwest comer -of the site (reference City Dwg. No. 169-4, sheet 17 of 17). 3.2 Storm Water Quality At Outflow: The proposed post-development point of discharge will differ from the present condition. Presently, on site runoff generally sheet flows off the site to the Romeria Street and Gibraltar Street gutters along the project frontage. A small portion of the site drains to an existing PCC ditch locl:J.ted along the site's West slope face. The ditch is cOlmected to the area's existing RCP storm.drain system. All of the storm water runoff from developed portion of the project site will be discharged to the Romeria Street gutter via a new sidewalk underdrain structures. Slope face runoff will continue along the West fill slope (draining to the existing PCC ditch) and the North fill slope (draining to the Gibraltar Street gutter). In both cases, the tributary areas will be reduced by the proposed grading design, thus, the runoff from these areas will be reduced. 3.3 Proposed Storm Drain System Description: Storm water runoff from the pr()ject site's landscaped areas, building roof areas and exterior deck surfaces will be conveyed by the proposed storm drain system to a new storm water separator unit located North of the northerly driveway entrance, which in tum will be discharged to the Romeria Street gutter via a new sidewalk underdrain structure. A Stormceptor model STC- 900 storm water separator manufactured by Rinker Materials was selected as -the base-performance model for the project -see Section 3.5 of this report. 3.4 1 DO-year Return Event Peak Flow Computations: - Estimated peak flows for 100-year, 6-hour storm events (pre-and post-development conditions) were computed for the proj ect site. The peak pre-development storm water runoff r~te was computed at 1.4 cfs, the peak post-development storm water runoff rate was computed at 2.7 cfs, an increase of 1.3 cfs. The increase in the peak discharge is the result of new impervious surface areas and a reduction in the time of concentration for the subject site's tributary basin. 3.5 Water Quality Treatment Flow -Based on Water Quality Design Storm: The maximum treatment volume is based on 0.7" of precipitation over the entire project site and utilized a weighted 'C' factor for the site. This approach yields a 1,810 cubic-foot treatment volume for a 24-hour storm. See Appendix G for the water quality treatment flow computations. This total volume of water will be filtered usinga stonn-water-separator-unit (Stormceptor model STC-900)- see Appendix H for the storm water separator technical data. 3.6 Site Plans and Adjacent Land Uses: Appendix I presents the project grading plan proposed for the site. 3.7 Soil Characteristics: The project's geotechnical report prepared by GeoSoils, Inc. titled "Preliminary Geotechnical Evaluation; Romeria Pointe, APNs 216-300-12 and13; Carlsbad, San Diergo, California" dated September 27,2004, identifies the area soils as sandy clays and silty sands. The soil characteristics are addressed in the BMPs selected for the construction phase and post-development phase of the project. Regarding the immediate post-development phase of the project (prior to mature and established landscape improvements), in spite of the low treatment flow rate but in consideration of the on-site soil types and general small areas afforded to biofilters, a storm water separator unit was specifically selected to address the anticipated soil discharge from the site. All slopes disturbed by project activities will include slope protection measures for the construction and post-construction phases. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 5 of 14 Pages I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 635-Q839 4. MITIGATION MEASURES TO PROTECT WATER QUALITY 4.1 Storm Water Requirements Applicability: Based on the proposed development anticipated for the project site (new paved street or roads greater than 5,'000 square feet in area) and a review of the Appendix A of the City of Carlsbad Storm Water Standards Manual, this project is classified as a priority project, designation "medium". Based on the project size (less than one acre of disturbed area), a SWPPP is generally not required for a project of this type, but a SWPPP has been prepared to meet City condition item no. 38. Completed storm water requirements applicability checklists from the City of Carlsbad Storm Water Standards Manual are included in Appendix J of this report. 4.2 Pollution Prevention BMPs: The pollution prevention BMPs fall into two categories: BMPs in effect during the construction phase and BMPs to be maintained in perpetuity post-construction. The BMPs listed below indicate whether they are for construction phase, post-construction phase or both. The following BMPs are selected as being appropriate for this specific site (from Construction Activity, Best Managemen(Practices Handbook, Storm Water Quality Task Force, March 1993): • ESC 1 -Scheduling ( construction phase): This activity provides for the sequencing of construction activities to reduce the amount and duration of soil exposed to erosion by wind, rain, runoff and vehicle tracking. • ESC10 -Seeding and Planting (construction and post-construction): Normally done at the conclusion of site disturbance to become a permanent BMP, seeding and planting of grasses, shrubs, trees and/or ground covers provides long-tern stabilization of soil. • ESC11 -Mulching (construction phase): Mulching is used to temporarily or permanently stabilize cleared or freshly seeded areas. Hydro seed is an example of seed and mulch being placed at the same time. Hydro seed is expected to be used to mitigate surface soil disturbance occurring in the process of placing septic fields. • ESC20 -Geotextiles and Mats (construction phase): Matting made of natural or synthetic materials may be used to temporarily stabilize slope areas and shallow swales. • ESC21 -Dust Control (construction phase): Dust control measures are used to stabilize soil from wind erosion, and reduce dust generated by construction activities. Periodic watering will address these Issues. .--ESC24 -Stabilized Construction Entrance (construction phase): A~stabifizecf pad of aggregate-underlain with filter cloth located at the point where traffic will enter or leave the construction site will significantly reduce the amount of sediment tracked off-site. • ESC30 -Earth Dike (construction phase): The temporary earth dike shall be used to channel drainage from the graded pads to temporary sediment traps (see ESC55). • ESC31 -Drains and Swales (construction phase & post-construction phase): Temporary drains and swales shall be used to divert runoff around the construction site, to divert runoff from stabilized areas around disturbed areas and to direct runoff into sediment traps. • ESC40 -Outlet Protection (construction phase & post-construction phase): At locations where runoff is concentrated by a pipe or open channel, outlet protection in the form of rock~ grouted rip-rap or concrete rubble shall be placed to prevent scour of the soil and to absorb flow energy to reduce flow velocities to non-erosive levels. • ESC50 -Silt Fence (construction phase): A silt fence that detains sediment-laden water shall be used at the down slope limits of site disturbance to promote sedimentation behind the fence, while releasing the water. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 6 of 14 Pages I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753~1453 • Fax (760) 635-0839 • ESC52 -Gravel Bag Barrier ( construction phase): Stacking gravel bags along a level contour creates a barrier, which detains sediment-laden water, ponding water upstream of the barrier and promoting sedimentation. • ESC 54 -Storm Drain Inlet Protection (construction phase): Devices of various designs which ·detain sediment-laden rurIoff and allow the sediment to settle prior to discharge into a storm drain inlet or catch basin. • ESC55 -Sediment Trap (construction phase): Sediment traps shall be used to settle out sediment from rurIoff leaving the site. • CA 1 -Dewatering Operations (construction phase): Prevent or reduce the discharge of pollutants to storm water from dewatering operations by using sediment controls and by testing the groundwater for pollution. . • CA 2 -Paving Operations (construction phase): Prevent or reduce the discharge of pollutants from paving operations, using measures to prevent rurIon and rurIoff pollution, properly disposing of wastes and training employees and subcontractors. • CA 3 -Structure Construction and Painting (construction phase): Prevent or reduce the discharge of pollutants to storm water from structure construction and painting by enclosing or covering or berming building material storage areas, using good housekeeping practices, using safer alternative products and training employees and subcontractors. • CA 10 -Material Storage and Delivery (construction phase & post-construction phase): Prevent or reduce the discharge of pollutants to storm water from material delivery and storage by minimizing the storage of hazardous materials on-site, storing materials in a designated area, installing secondary containment, conducting regular inspections and training employees and subcontractors. • CA 11 -Material Use (construction phase & post-construction phase): Prevent or reduce the discharge of pollutants to storm water from material use by using alternative products, minimizing hazardous material use on-site and training employees and subcontractors. . • CA 12 -Spill Prevention and Control (construction phase & post-construction phase): Prevent or reduce the discharge of pollutants to storm water from leaks and spills by reducing the chance for spills, stopping the source of spills, containing and cleaning up spills, properly disposing of spill materials and training employees. • CA 20' -Solid Waste Management (construction phase & post-construction-pliase):·-Prevent orTeduce the discharge of pollutants to storm water from solid or construction waste by providing designated waste collection areas and containers, arranging for regular disposal and training employees and subcontractors. • CA 23 -Concrete Waste Management (construction phase): Prevent or reduce the discharge of pollutants to storm water from concrete waste by conducting washout off-site, performing on-site washout in a designated areas and training employees and subcontractors. • CA 24 -Sanitary Waste Management (construction phase): Prevent or reduce the discharge of pollutants to storm water from sanitary waste by providing convenient, well-maintained facilities and arranging for regular service and disposal. • CA 31 -Vehicle and Equipment Fueling (construction phase): Prevent or reduce the discharge of pollutants to storm water by using off-site facilities, fueling in designated areas only, enclosing or covering stored fuel, implementing spill controls and training employees and subcontractors. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 7 of 14 Pages I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 635-0839 • CA 40 -Employee/Subcontractor Training (construction phase & post-construction phase): Employee / subcontractor training, like maintenance of a piece of equipment, is not so much a best management practice as it is a method by which to implement BMPs. The responsibility of implementing the a1;>ove BMPs and the responsibility of maintaining them during the construction activity shall reside with the licensed contractor who is responsible for overall project construction management. In the event the owner chooses to be the project manager, the responsibility will reside with the owner. The maintenance responsibility for the post-construction project resides with the owner of the project after they take possession of the property from the contractor. 4.3 Treatment BMPs: After stabilization of the construction site, there will be an on-going maintenance of the project site. The following BMPs will be installed during the construction phase and shall be maintained and kept functional throughout the life of the completed project: • ESCIO-Seeding and Planting: To keep a high quality vegetative cover over sloped and disturbed areas. • TC 6-Media Filtration: The storm water separator (for general site and driveway / parking area runoff) shall be maintained and serviced on a regular basis in accordance with Section 5 of this report. 4.4 Source Control BMPs: Source control BMPs (post-construction) will consist of measures to prevent polluted runoff. This program will include an educational component directed at each homeowner. The project developer will provide the homeowners a set of brochures developed ·by ·the County's Environmental Health Department to include the following: • Stonn water Runoff Pollution Fact Sheet; • Storm water Runoff Pollution Prevention Tips for Homeowners; • Storm water Pollution Prevention Yard Work (Landscaping, Gardening, Pest Control); • Storm water Pollution Prevention Pet Waste; and • Storm water BMP Swimming Pool and Spa Cleaning. In addition, storm drain inlets will be stenciled with a message warning citizens not to dump pollutants into the drains. 4.5 Treatment Control BMPs: The following treatment control BMPs wiU be implemented to· address- water quality: • Continuous Deflective Separation Units (reference Section 3.5 of this report). 4.5.1 Continuous Deflective Separation Units: The CDS Technology was developed as a gross pollutant trap and is a proprietary product manufactured under patents by CDS Technologies, Inc. The technology captures and retains floatables, trash and debris greater than 0.05 inches in storm water runoff, as well as the capture of fine sand and larger particles and the pollutants attached to those particles. The CDS unit is a non-mechanical self-operating system and will function when there is flow in the storm drainage system. The unit is designed to capture pollutants in flows up to the design capacity and during extreme rainfall events when the designed capacity may be exceeded. Material captured in the CDS unit's separation chamber and sump is retained even when the unit's design capacity is exceeded. See Appendix H for product technical data. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 8 of 14 Pages I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 635-0839 5. MAINTENANCE STORM WATER MANAGEMENT PROGRAM 5.1 Maintenance Responsibility: The maintenance responsibility during the construction phase shall reside with the licensed contractor who is responsible for overall project construction management. In the event the owner chooses to be the project manager, the responsibility will reside with the owner. The maintenance responsibility for the operating project (post-construction) resides with the property owner(s). The property owner(s) shall be responsible for maintaining, monitoring and repairing BMPs during the life of the project. 5.2 General Maintenance Activities for BMPs: Upon installation of the post-construction BMPs and the transition of ownership to the property owner(s), the property owner(s) shall assume full responsibility for maintenance (not withstanding any warranty responsibilities of the developer) in accordance with the following: 5.2.1 General Preventative Maintenance: Preventive maintenance that will be done on a regular basis: • All vegetated slopes shall be irrigated and maintained in a ~anner that provides for plant health and good coverage of the slope areas. If erosion of the slope area becomes evident, then the maintenance activity shall include stabilization of the eroded area using matting or other acceptable methods. • All landscaped areas shall be irrigated and maintained to promote plant health and good coverage. • Trash shall not be permitted to accumulate in such a way that storm runoff could transport the trash off- site. Waste collected by the storm water system is ultimately the responsibility of the owners. Disposal of sediment, debris, and trash will comply with applicable local, county, state, and federal waste control programs. • All driveway surfaces and parking areas shall be kept clean by periodic sweeping. The frequency of sweeping shall be sufficient to prevent the accumulation of silt, debris or motor vehicle fluids, but not less than twice yearly. • In the event that trash or debris is generated as a result of site activity, the trash and/or debris shall be cleaned up within a 24-hour period. • Landscape pesticides, herbicides and fertilizers shall be used in accordance with applicable federal, state and local regulations. • Landscape waste shall be disposed of by use of a solid waste container or transported off-site to a solid waste;..re·cycling center: • Landscape irrigation run-off shall not be allowed. Irrigation controllers shall be regulated so that there is no significant landscape water run-off. • The storm drainage channels shall be cleaned at least once a year to remove accumulated sediment to the original grade of the channel. • Elimination of Mosquito Breeding Habitats. The most effective mosquito control program is one that eliminates potential breeding habitats. • Fossil filter inserts, where specified, shall be inspected and maintained by periodic inspection. The frequency of inspection shall be sufficient to prevent the accumulation of silt, sediment and debris, but not less than is recommended by the manufacturer. • Suspected hazardous wastes will be analyzed to determine disposal options. Hazardous wastes generated onsite will be handled and disposed of according to applicable local, state, and federal regulations. A solid or liquid waste is considered a hazardous waste if it exceeds the criteria listed in the CCR, Title 22, Article 11. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 9 of 14 Pages I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 635-0839 5.2.2 General Corrective Maintenance: Corrective maintenance is required on an emergency or non- routine basis to correct problems and to restore the intended operation ofBMPs. Corrective maintenance activities include: • Sediment Removal: Surface sediments will be removed when sediment accumulation impedes the flow in the planter areas or interferes with drainage into catch basins. Vegetation removed with any surface sediment excavation activities will be replaced through reseeding or replanting. Disposal of sediments will comply with applicable local, county, state, or federal requirements. • Embankment and Slope Repairs: Damage to the embankments and slopes will be repaired quickly (e.g., within 10 working days). • Erosion Repair: Where a reseeding program has been ineffective, or where other factors have created erosive conditions (i.e., pedestrian traffic, concentrated flow, etc.), corrective steps will be taken to prevent loss of soil. There are a number of corrective actions than can be taken that include erosion control blankets, rip rap, sodding, or reduced flow through the area. Design engineers will be consulted to address erosion problems if the solution is not evident. • Elimination of Trees and Woody Vegetation: Woody vegetation will be removed from embankments. • Elimination of Animal Burrows: Animal burrows will be filled and steps taken to remove the animals if burrowing problems continue to occur (filling and compacting). If the problem persists, vector control specialists will be consulted regarding removal steps. This conSUlting is necessary as the threat of rabies in some areas may necessitate the animals being destroyed rather than relocated. • General Facility Maintenance: In addition to the above elements of corrective maintenance, general corrective maintenance will address the overall facility and its associated components. If corrective maintenance is being done to one component, other components will be inspected to see if maintenance is needed. 5.2.3 General Inspection Frequency: The site and its facilities will be regularly inspected and inspection visits will be completely documented by the owner's contractor responsible for regular site landscaping maintenance: • Once a month at a minimum. • After every large storm (after every storm monitored or those storms with more than 0.50 inches of precipitation). • On a weekly basis during extended periods of wet weather. 5.3 Continuous Deflective Separation Units: The operational and maintenance needs of a CDS are: • Inspection of its structural integrity and its screen for damage. • Animal and vector control. • Periodic sediment removal to optimize performance. • Scheduled trash, debris and sediment removal to prevent obstruction. • Removal of graffiti. • Preventive maintenance of BMP equipment and structures. • Erosion and structural maintenance to maintain the performance of the CDS. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 10 of 14 Pages I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/Generai-Engineering Contractors AB412412 2525 Pio Pieo Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 635-0839 5.3.1 Inspection Frequency: The facility will be inspected and inspection visits will be completely documented: • Once a month at a minimum. • After every large storm (after every storm monitored or those storm with more than 0.50 inches of precipitation. ) • On a weekly basis during extended periods of wet weather. 5.3.2 Aesthetic and Functional Maintenance: Aesthetic maintenance is important for public acceptance of storm water facilities. Functional maintenance is important for performance and safety reasons. Both forms of maintenance will be combined into an overall Storm Water Management System Maintenance. 5.3.2.1 Aesthetic Maintenance: The following activities will ~e included in the-aesthetic maintenance program: __ • Graffiti Removal. Graffiti will be removed in a timely manner to improve the appearance of a CDS and to discourage additional graffiti or other acts of vandalism. 5.3.2.2 Functional Maintenance: Functional maintenance has two components: preventive maintenance and corrective maintenance Preventive Maintenance: Preventive maintenance activities to be instituted at a CDS are: • Trash and Debris Removal. Trash and Debris accumulation, as part of the operation and maintenance program at a CDS, will be monitor once a month during dry and wet season and after every large storm event. Trash and debris will be removed from the CDS unit annually (at end of wet season), or when material is at 85% of CDS' sump capacity, or when the floating debris is 12 inches deep, whichever occurs first. • Sediment Removal. Sediment accumulation, as part of the operation and maintenance progranl at a CDS, will be monitored once a month during the dry season, after every large storm (0.50 inch). Sediment will be removed from the CDS annually (at end of wet season), or when material is at 85% of CDS sump capacity, or when the floating debris is 12 inches deep, whichever occurs first. Characterization and disposal of sediment will comply with applicable local, county, state or federal requirements. • Mechanical and Electronic Components. Regularly scheduled maintenance will be performed on fences, gates, locks, and sampling and monitoring equipment in accordance with the manufacturers' recommendations. Electronic and mechanical components will be operated during each maintenance inspection to assure continued performance. • Elimination of Mosquito Breeding Habitats. The most effective mosquito control progranl is one that eliminates potential breeding habitats. • Hazardous Waste: Suspected hazardous wastes will be analyzed to determine disposal options. Hazardous wastes generated onsite will be handled and disposed of according to applicable local, state, and federal regulations. A solid or liquid waste is considered a hazardous waste if it exceeds the ~riteria list in the CCR, Title 22, Article 11. Corrective Maintenance: Corrective maintenance is required on an emergency or non-routine basis to correct problems and to restore the intended operation and safe function of a CDS. Corrective maintenance activities include: \ \fileserver\projects\04-00 1 bnr -9\hydro\swmp\0400 1_ swm prpt.doc Page 11 of 14 Pages I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 635-0839 • Removal of Debris and Sediment: Sediment, debris, and trash, which impede the hydraulic functioning of a CDS will be removed and properly disposed. Temporary arrangements will be made for handling the sediments until a permanent arrangement is made. • Structural Repairs: Once deemed necessary, repairs to structural components of a CDS and its inlet and outlet structures will be done within 30 working days. Qualified individuals (Le., the manufacturer representatives) will conduct repairs where structural damage has occurred. • Erosion Repair: Where factors have created erosive conditions (i.e., pedestrian traffic, concentrated flow, etc.), corrective steps will be taken to prevent loss of soil and any subsequent danger to the performance of a CDS. There are a number of corrective actions than can be taken. These include erosion control blankets, rip rap, or reduced flow through the area. Designers or contractors will be consulted to address erosion problems if the solution is not evident. • Fence Repair: Repair of fences will be done within 30 days to maintain the security of the site. • Elimination of Animal Burrows. Animal burrows will be filled and steps taken to remoVe the animals if burrowing problems continue to occur (filling and compacting). If the problem persists, vector control specialists will be consulted regarding removal steps. This consulting is necessary as the threat of rabies in some areas may necessitate the animals being destroyed rather than relocated. If the BMP performance is affected, abatement will begin. Otherwise, abatement will be performed annually in September. • General Facility Maintenance: In addition to the above elements of corrective maintenance, general corrective maintenance will address the overall facility and its associated components. If corrective maintenance is being done to one component, other components will be inspected to determine if modified maintenance is needed. 6. PROGRAM EVALUATION After completion of construction and the commencement of the use of the site by the property owner(s), the program outlined in this document shall be evaluated at least annually by the property owner(s) to· determine its adequacy. In the event that the maintenance program requires adjustment or amendment, the changes to the-maintenance pro.gram shall be made_ immediately (based on the input from licensed professionals) and shall be fully documented (at minimum: date, the purpose and description of the maintenance program adjustment, by whom). 7. FISCAL RESOURCES The property owner( s) shall provide the fiscal resources necessary for implementing the above structural and maintenance BMPs and to keep them in good operating order. Provisions for this responsibility by the property owner(s) shall be made a part of the project CC&Rs. 8. SUMMARY CONCLUSIONS This SWMP has been prepared in accordance with the Watershed Protection, Storm Water Management, and Discharge Control Ordinance and the Storm Water Standards Manual. This SWMP has evaluated and addressed the potential pollutants associated with this project and their effects on water quality. A summary of the facts and findings associated with this project and the measures addressed by this SWMP is as follows: \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 12 of 14 Pages I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753~1453. Fax (760) 635-0839 It is the professional opinion of the preparer of this report that the beneficial uses for the receiving waters have been identified and that none of these beneficial uses will be impaired or be diminished due to the construction and operation of this project. \\fileserver\projects\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Page 13 of 14 Pages I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite J 02 • Carlsbad, CA 92008 • Telephone (760) 753-i453 • Fax (760) 434-5831 APPLICANT'S CERTIFICATION OF SWMP I certify under a penalty of law that this document and all attachments were prepared under my direction and supervision. Based on my inquiry of the person or persons who will manage the system, the information submitted is, to the best of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Signature Michael K. Pasko, P .E. Senior Engineer Conway & Associates, Inc. 2525 Pio Pico Drive, Suite 102 Carlsbad, CA 92008 (760) 753-1453 Phone (760) 635-0839 Fax p:\04-001 bnr-9\hydro\swmp\04001_swmprpt.doc Date No. 41022 EXPIRES 3-31-2009 Page 14 of 14 Pages I I I I I I I I I I I I I I I I' I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760)753-1453. Fax (760) 635-0839 APPENDIX A VICINITY MAP ._._---------------_.- VICINITY CITY OF OCEANSIDE PACIFIC OCEAN '78' MAP NOT TO SCALE LOCATION MAP // I \ SITE \ \..~ I I I I I I I I I I 'I I 1 I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 434-5831 APPENDIX B ORIGINAL SITE DEVELOPMENT GRADING PLAN , -- .1 ~ :II ;:; " <-I !!! '" IH -- t:"" (i) , t;..' ::0 l> 0 n z 0 (i) rn "tJ t3 r l> io' z (/) rn (g 8 ::0 1-3 =:I !2 ~ III 0 II> 1-3 J, ~ :J: 1'1 1'1 -t ~l (/) ---- ------ -.. --- .- " i CJ38V11nN SNIM\fI:ICl I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 434-5831 APPENDIX C PROPOSED CONDITIONS MAP / -----------------~-L z P---------------------------------------------------------------------------~~--------------------------------------~-.\ \,tl\ 11 \ Conway & Associates, Inc. CI.n BocIn.",,/Sunw1""'/Genorol Bncb>Hrinc Cantraolor. A1UlW2 2~26 PIG PI •• Drhe • Sullo lOZ • Carbb&d, CIJlt.rnla g2DD8 TolJpha"" (160) 153-B53 • FAX (1110) CS6-0l!3W \\ \\ \ \ \\ \\ \\ \ \ N q o (Xl q __ ~ -__ -___ ·-·-----11----- I I I I I I I I I I I I I I 'I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB4l2412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760) 635-0839 APPENDIX D STATE IMPAIRED WATERBODIES 303(d) LIST -- 9 ------ - -------2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT R Agua Hedionda Creek SAN DIEGp REGIONAL WATER QUALITY CONTROL BOARD :~K':b-m.~4f;e~f;t,,~ '<_A¥/~ N~yq '''">,",_?" :< __ ~'_"'/~"'Z;'.~' ~t<'7.i!.'..!":'l"/,_C~ _':r .. ,' ",bf,P'l>'o/;.fZ':.' ":;"'~_" -' ,.' -:~~ .. ,y :'" 90431000 Total Dissolved Solids Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Low 7 Miles --Approvel/ by VSEPA: .lilly 2003 ~. ir.iJIIo'L~~~~~_-~.,;wm=:tm 9 E Agua Hedionda Lagoon 90431000 Bacteria Indicators Low 6.8 Acres NonpointlPoint Source Sedimentation/Siltation Low 6.8 Acres NonpointlPoint Source ~"~;~~"~~~~~'>;Il1&;M~~~~~~~ ... ~ 9 R Aliso Creek 90113000 Bacteria Indicators Phosphorus Urban Runoff/Storm Sewers Unknown point source Nonpoint/Point Source Impairment located at lower 4 miles. Toxicity Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Urban Runoff/Storm Sewers Unknown Nonpoint Source Mediupl 19 Miles Low 19 Miles Low 19 Miles Unknown point source I ~~~~~~~~~:;;$;.~r:~,...~~~~~i~'tz.?t?:'>~.£!:~~-X:"..;;z~"'$"~'k,,\~~~~~~;:;"'~j£ 9 E Aliso Creek (month) 90113000 Bacteria Indicators Medium 0.29 Acres NoupointlPoint Source ft'7~~ ~~'~ 9 E Buena Vista Lagoon 90421000 Bacteria Indicators Low 202 Acres Nonpoi~tlPoint Source Nutrients Low 202 Acres Estimated size of impairmellt is 150 acres located in upper portion of lagoon. NoupoiutlPoint Source Sedimentation/Siltation Medium 202 Acres NonpointlPoiut Source -~~~.---=~~ ~~-~ Page 1 of16 - -- 9 -------, - ---- -- R 2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEG9 REGIONAL WATER QUALITY CONTROL BOARD Chollas Creek 90822000 Bacteria Indicators Medium 1.2 Miles Nonpoint/Point Source Cadmium High 1.2 Miles NonpointlPoint Source Copper High 1.2 Miles NonpointlPoint Source Diazinon High 1.2 Miles NonpointlPoint Source Lead High 1.2 Miles NonpointlPoint Source Zinc High 1.2 Miles NonpointlPoint Source --ApprOl'et[ by USEPA: JlIly 2003 2004 2004 2002 2004 2004 lr~"~~~~>S.~.m~~'n ~ -""~~'~~~k~~~~A~;r;;:mm;;;~~~ 9 R Cloverdale Creek 90532000 Phosphorus Total Dissolved Solids Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Low Low 1.2 Miles 1.2 Miles ~~~~~~#~~?ill?~~~&~~~tjfwz:m::tv"X:;.J~]li~<:~,nzz:~Dt:.1&'~~-;:'t$'f%l 9 B Dana Point Harbor ~b114000 Bacteria Indicators Medium Impairment located at Baby Beach. Urban Runoff/Storm Sewers Marinas and Recreational Boating Unknown Nonpoint Source Unknown point source 119 Acres ~~:mr:;,.,n~t"rW>"~~<{;.j,,~~~~~~~ __ ~~,~';$'f;iW?'r$f"'ir..v~;~~)1'::m~I'~~~~~~~~-a~~~ 9 E Famosa Slough and Channel' ~0711000 Eutrophic Low 32 Acres Nonpoint Source Page2of16 - - - 9 .. -- --- ---- ---- R 2002 CWA SECTION 3Q3(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIE~O REGIONAL WATER QUALITY CONTROL BOARD Felicita Creek 90523000 Total Dissolved Solids Agricultural Return Flows Urban Runoff/Storm Sewers Flow Regulation/Modification Unknown Nonpoint Source Unknown point source Low 0.92 Miles - - Approvc(/ by USEPA: July 2003 ~Fw/L~:au:!~_j;K"~~Il«;rugM5~>i:.J'~SZa~ vSf..~~ ,,-~~Jl..tC;;~~m,...~ 9 R Forester Creek 90712000 Fecal Coliform Impairment Located at lower I mile. pH Urban Runoff/Storm Sewers Spills Unknown Nonpoint Source Unknown point source Impairment Located at upper 3 miles. Total Dissolved Solids Industrial Point Sources Habitat Modification Spills Unknown Nonpoint Source Unknown point source Impairment Located at lower I mile. Agricultural Return Flows Urban Runoff/Storm Sewers Flow Regulation/Modificati<.'n Unknown Nonpoint Source Unknown point source Medium 6.4 Miles Low 6.4 Miles Low 6.4 Miles r~-IWr'~~~~~~~enr,,;;J:l2:z:sm,;;:);:m;;;"'I:!:"jt}:mw-.nS-~·~~~v, __ ~~ 9 R Green Valley Creek '90511000 Sulfates Urban Runoff/Storm Sewers Natural Sources Unknown Nonpoint Source Unknown point source Low 1.2, Miles ~;:~~~:-:;r'~~~Y1,{f;Wlhp¥nm:nxaz;~<::if'~~~ 9 L Guajome Lake 90311000 . Eutrophic Low 33 Acres Nonpoint/Point ~ource ~ ... ~~~~~~;:r~~%£~a:.~~~~~~~~~~ Page3of16 - - - 9 - - - --- -------- L 2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGp REGIONAL WATER QUALITY CONTROL BOARD Hodges, Lake '.!0521000 Color Nitrogen Phosphorus Total Dissolved Solids Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Agriculture Dairies Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Agriculture Dairies Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Agricultural Return Flows Urban Runoff/Storm Sewers Flow Regulation/Modification Natural Sources Unknown Nonpoint Source Unknown point source Low 1104 Acres Low 1104 Acres Low 1104 Acres Low 1104 Acres --Approved by USEPA: J/I/yl003 ~~~~U~~~;~~J1ZY~!""JJ:.Z0w~..ill~~~m,.i.xzr!X:Z2i~f?:gmezk';':~~'_~~~~~ 9 R Kit Carson Creek 90521000 Total Dissolved Solids Low 0.99 Miles Agricultural Return Flows Urban Runoff/Storm Sewers Flow Regulation/Modification Unknown Nonpoint Source Uuknown point ~;X¥4t&t,JitJaJii£gn;:&2i~~1.~.::;aA'I>o/>_~ Lorna Alta Slough 9,0410000 Bacteria Indicators Low 8.2 Acres Nonpoint Source Eutrophic Low 8.2 Acres Nonpoint Source ~ <~~~W~~""'''''-' -~~~,~~ Page4of16 - - ---- -- --- ------ --2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN nIEdo REGIONAL WATER QUALITY CONTROL BOARD Approved by USEPA: JlIlyJ003 9 E Los Penasquitos Lagoon 90610000 Sedimentation/Siltation Low 469 Acres NonpoinUPoint Source W':t:tli::,,>&~~~,~~~%ti2i~/W~~~....;u~~,",m;'"::U-.UC:""'J"'~==~"",,,,,._T'_""'i>~a;ajts:\Q~<~~oM~~*'~&:<::tS:k_t'~;J:tl?-~MMt 9 B Mission Bay 90640000 Bacteria Indicators Medium 2032 Acres Impairment located along entire bay shoreline. NonpoinUPoint Source Eutrophic Low 2032 Acres Estimated area 0/ impairment 0/0.5 acres located at mouth 0/ Rose Creek and 0.5 acres located at mouth o/Tecolote Creek. NonpoinUPoint Source Lead Low 2032 Acres Estimated area o/impairment 0/0.5 acres located at mouth o/Rose Creek and 0.5 acres located at mouth o/Tecolote Creek. Nonpoint/Point Source ~'3~~:~~~~~~~';""41M~~~~~~~'&~f1~~~~~~ 9 R Murrieta Creek 90252000 Phosphorus Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Low 12 Miles ~k~~~~!?~~~*~,,:~~,,",~~~~'~~~m~ 9 C Pacific Ocean Shoreline, Aliso HSA 9'0113000 Bacteria Indicators Medium 0.65 Miles Impairment located at Laguna Beach at Laguni/a Place / Blue Lagooll Place, Aliso Beach. NonpoinUPoint Source t.TC~thlJfJmU&u:s;gg~ ~~ ~'<mA;W, tiamhl~~~~mli3;;1,:m!;t~&1:;;t;S:~'~~ 9 C Pacific Ocean Shoreline, Buena Vista Creek 90421000 HA Bacteria Indicators Low 1.2 Miles Impairment located at Buena Vista Creek, Carlsbad City Beach at Carlsbad Vii/age Drive, Carlsbad State Beach at Pine Avenue. NonpoinUPoint Source m;:;-t;j!li:~;aJ%;;r;&~~~'w-: ~~~~~~P'WW":' "< ~~ 9 C Pacific Ocean Shoreline, Dana Point HSA 90114000' Bacteria Indicators Medium 2 Miles Impairment located at Aliso Beach at West Street, Aliso Beach at Table Rock Drive, 1000 Steps Beach at Pacific Coast Hwy (Hospital, 9th Ave), Salt Creek (large outlet). Salt Creek Beach at Salt Creek service road, Salt Creek Beach at Dana Strand Road. NonpoinUPoint Source ~~~~~~~~ :;:.:rn(t~~~~ PageS 0/16 - ------,---- - --- ----2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD ApprQ)'ell by USEPA: .llIly 2003 9 C Pacific Ocean Shoreline, Escondido Creek HA 90461000 Bacteria Indicators Low 0.44 Miles Impairment located at San Elijo Lagoon outlet. NonpointlPoint Source {~~~~~~~~~~~~~<' ~~ 9 C Pacific Ocean Shoreline, Laguna Beach HSA 90112000 Bacteria Indicators Medium 1.8 Miles Impairmellllocated at Main Laguna Beach. Laguna Beach at Ocean Avenue, Laguna Beach at Laguna Avenue, Laguna Beach at Cleo Street, Arch Cove at Bluebird Canyon Road. Laguna Beach at Dumond Drive. NonpointlPoint Source n~~~~~-~~~~H~~~~.l'~~!bP."~~m:'V~*!pe~(l t!<"i£t.."' ..... ,~ -'~~~ 9 C Pacific Ocean Shoreline, Loma Alta HA 90410000 Bacteria Indicators Low 1.1 Miles Impairment located at Loma Alta Creek Mouth. NonpointlPoint Source ~::':;:nJ%"Z'$li:i~~~~~~~,;;s;:;==~;;;g;;;=~;;;;:w==~~====_~~ 9 C Pacific Ocean Shoreline, Lower San Juan 90120000 HSA Bacteria Indicators Medinm 1.2 Miles Impairment located at North Beach Creek, San Juan Creek (large outlet), Capistrano Beach, South Capistrano Beach at Beach Road. Nonpoint/Point Source ~~-':';~~~~~~~"tYtt;;wn .. ~~~~~.....&.7~.mw~~~~~l'~~~ 9 C Pacific Ocean Shoreline, Miramar Reservoir 90(!10000 HA Bacteria Indic"ators Low Impairment located at Torrey Pines State Beach at Del Mar (Anderson Canyon). Urban Runoff/Storm Sewers Unknown Nonpoint Sonrce Unknown point source 0.39 Miles ~~~~~~~2%m::l$,~~'-1~:~~~ ,~~ 9 C Pacific Ocean Shoreline, San Clemente HA 90130000 Bacteria Indicators Medium 3.7 Miles Impairment located at Poche Beach (large olltlet). Ole Hanson Beach"Club Beach at Pico Drain. San Clemente City Beach at El Porlal St. Stairs, Sail Clemellte City Beach at Mariposa St., San Clen/ellle City Beach alLinda Lalle, San Clemellte City Beach al Soulh Linda Lane, San Clemente City Beach at Lifeguard Headquarters, Undqr Sail Clemellle MUllicipal Pier. Sail Clemente City Beach al Trafalgar Canyoll (Trafalgar LII.), Sail Clemellle Slate Beach al Riviera Beach, San Clemellle State Beach al Cypress Shores. NonpointlPoint Source --~~~~ ~~ "liM:lm:~ 9 C Pacific Ocean Shoreline, San Diego HU 90711000 . Bacteria Indicators Medium 0.37 Miles Impairment localed al Sail Diego River MOUlh (aka Dog Beach). NonpointlPoint Source ~~_~_~~~~~~'trz~~~d,>;d~~~1:"~,,~~,".&~~ Page 6 of16 - ----- --- - ---------.-2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGO REGIONAL WATEJ,{ QUALITY CONTROL BOARD Approvell by USEPA: .TlIly2003 9 C Pacific Ocean Shoreline, San Diequito HU 90511000 Bacteria Indicators Low 0.86 Miles Impairment located at San Dieguito Lagoon Mouth. Solana Beach. NonpointlPoint Sonrce ~'~~~.gj:mw~s:St:~iwz:;:z~.rJ::~.;w~~.a:mt%~?J~n:~r.W~Z.:$;.q:~~~:~ ",~.r~~:~;:t'JittJmi.'lClt£gAkU£OCWt:;;h<Cm 9 C Pacific Ocean Shoreline, San Joaquin Hills ~0111000 HSA Bacteria Indicators Low Impairment located at Cameo Cove at Irvine Cove Dr.lRiviera Way, Heisler Park-North Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source 0.63 Miles ~ j(««-;Zl<!:<UJ!~~*'>.'v~k;UJ.eJCtVk<<W':;t~~~ ,~ 9 C Pacific Ocean Shoreline, San Luis Rey HU 90311000 Bacteria Indicators Low 0.49 Miles Impairment located at Sail Luis Rey River Mouth. Nonpoint/Point Source ~~"""""I~~~~--r"{~~~~~.61~~~~~~~~~~~ 9 C Pacific Ocean Shoreline, San Marcos HA 90451000 Bacteria Indicators Low 0.5 Miles Impairment located at Moonlight State Beach. NonpointlPoint Source ~:r<~~~G*,~",,~)iitW::;$\~~~~~~~t'Y~~~~-,r~ 9 C Pacific Ocean Shoreline, Scripps HA 90630000 Bacteria Indicators Medium 3.9 Miles Impairment located at La Jolla Shores Beach at El Paseo Grande, La Jolla Shores Beach at Caminito Del Oro, La Jolla Shores Beach at Vallecitos, La Jolla Shores Beach at Ave de la Playa, Casa Beach (Childrens Poo/), South Casa Beach at Coast Blvd., Whispering Sands Beach at Ravina St., Windansea Beach at Vista de la Playa, Windansea Beach at Bonair St., Windansea Beach at Playa del Norte, Windallsea Beach at Palomar Ave., Tourmaline Surf Park, Pacific Beach at Gralld Ave. NonpointlPoint Source ~1Z".mli#~~~~~~:);;;JY1+f:t~%%~8~mc~~m~~~~'+m:~~~~~»J1~~~"!W"~ 9 C Pacific Ocean Shoreline, Tijuana HU 9.1111000 Bacteria Indicators Low 3 Miles Impairment located from the border, extellding nor!h along the shore. NonpointlPoint Source. ~'#l'o:x~~~,;;'z..~~1I71""i'·'1J!~~;m;;;I~~ 9 R Pine Valley Creek (Upper) . 9,1141000 Enterococci . Medium Grazing-Related Sources Concentrated Animal Feeding Operations (permitted, point source) Transient encampments 2.9 Miles ~~~~ .. :11XZ~!f&;&;;.,~~~~~~z~~~~~~!§t'i!£'£J;mltw~~~~;;c~~~~.:J~ Page 70116 - - 9 - - - - - ---- - -- -- R 2002 CW A SECTION 303( d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD Prima Deshecha Creek ?0130000 Phosphorus Turbidity Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Low Low 1.2 Miles 1.2 Miles - - ApprlJl'etl by USEPA: JIIly200J m~~~~~ ,_~W'~~~~~r"~~'W"'~~-SWm.~~~,,:~~~';.&"""~~~ 9 R Rainbow Creek 90222000 Nitrogen Phosphorus Agricultural Return Flows Other Urban Runoff Nurseries High Onsite Wastewater Systems (Septic Tanks) NonpointlPoint Source Agricultural Return Flows, Other Urban Runoff Nurseries High Onsite Wastewater Systems (Septic Tanks) Nonpoint/Point Source 5 Miles 2003 5 Miles 2003 tilZZ4,..:t'Vi$C:o,.;;;Z;:?"'1(J.~~~~~~~~_~~'!.i.~~"~»>~~:J$~~ 9 B San Diego Bay Shoreline, 32nd St San Diego Naval Station 90822000 Benthic Community Effects NonpointlPoint Source Sediment Toxicity , NonpointlPoint Source Medium 103 Acres Medium 103 Acres rj"';'~Jz:.c~~,h.:;&~~~~~:JC;',e,z;:~~~'JM~'Y:'J~~~~~~~~~~~;g:f".!Z-7!...»~ 9 B San Diego Bay Shoreline, between Sampson 90822000 and 28th Streets Copper Mercury PAHs NonpointJPoint Source NonpointlPoint Source NonpointlPoint Source Page 8 of16 High S5 Acres 2003 High S5 Acres 2003 High SS Acres 2003 - --- -- - -- --------2002 CW A SECTION 30~( d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD I PCBs High 55 Acres NonpointJPoint Source Zinc High 55 Acres -' -Approvelf by USEPA: JIIly 1003 2003 2003 NonpointJPoint Source ~f;,..~~~~~~~~rr, ... ~;rf:'l1Rll~~"~'w.~~1",:w.w.t:"/:liI4a~;~,m~""A~~fUFZ~~,n~ 9 C San Diego Bay Shoreline, Chula Vista Marina 90912000 Bacteria Indicators Urban Runoff/Storm Sewers Marinas and Recreational Boating Boatyards Low ~tii$Smkill§~;;;;';'~ m :;;MJ~5llit~~;;:,==a __ = ___ ====i;;;= 9 B San Diego Bay Shoreline, Downtown 90821000 Anchorage Benthic Community Effects Sediment Toxicity Medium NonpointJPoint Source Medium 0.41 Miles 7.4 Acres 7.4 Acres NonpointJPoint Source ~!1~';;%-"f~~~;'~~~~~~~~~~ 9 C San Diego Bay Shoreline, G Street Pier 90821000 Bacteria Indicators Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Low 0.42 Miles ~~~~~~~~~~ ~ 9 B San Diego Bay Shoreline, near Chollas Creek 90822000 Benthic Community Effects Medium 15 Acres NonpointJPoint Source Sediment Toxicity Medium 15 Acres NonpointJPoint Source ~~~~~ ~--~~_-,Z¥~'~nz~~~~~ __ ==~=_== ___ ~ ___ ~~=~ 9 B San Diego Bay Shoreline, near Coronado 90822000 Bridge Benthic Community Effects Medium NonpointJPoint Source Sediment Toxicity Medium Includes Crosby Street/Cesar Chavez Park area. that will receive additional monitoring. Page90f16 37 Acres 37 Acres - - - 9 - - - - - ---- --- - - B 2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD San Diego Bay Shoreline, near sub base 90810000 Bentbic Community Effects Medium 16 Acres NonpointiPoint Source Sediment Toxicity Medium 16 Acres - - Approved by USEPA: .lilly 2003 ~~~_ NonpointiPointSource 9 B San Diego Bay Sh~reline, nearSwi7zer Creek 90821000 .~-:'~Z"~-~'1'.O!:_= ___ :m:_= __ = __ = __ =_~ __ ==:c Chlordane Lindane PAHs Urban Runoff/Storm Sewers Other Boatyards NonpointlPoint Source Urban Runoff/Storm Sewers Other Boatyards NonpointiPoint Source Urban Runoff/Storm Sewers Other Boatyards NonpointiPoint Source Medium 5.5 Acres Medium 5.5 Acres Medium 5.5 Acres ~,4>o:J.¢~~~~ R_%¢~~a;Z;~~~~~~it~i£;;;;W:@i$;~.sM..~::z:.u;;r:ru:zxt2:z;;~;:.&.!Zz!!ZOC,11:'! 9 B San Diego Bay Shoreline, North of 24th 90832000 Street Marine Terminal Benthic Community Effects Sediment Toxicity NonpointiPoint Source Medium 9.5 Acres Medium 9.5 Acres NonpointiPoint Source ~~~~ ___ ~~:r~~~~""~;;1%**w7W~f...~~~'t.w~mz:tf~~~ 9 B San Diego Bay Shoreline, Seventh Street 90831000 Channel Benthic Community Effects Medium 9 Acres NonpointlPoint Source Sediment Toxicity Medium 9 Acres NonpointlPoint Source ~~·"1%:iII$'.=r~~"~~twre~·~~~~~1;i Page 10 of16 - -- 9 --- --- - --- ---- C 2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD San Diego Bay Shoreline, Shelter Island Shoreline Park 90810000 Bacteria Indicators Low 0.42 Miles Unknown Nonpoint Source - - Approved by USEPA: .TlIly 2003 Unknown point source ~~~~.:i..~,W;;d"N~t~~~:.~~;r;Z~)~~~~J/~.i~.l7.Z'iJf1Yjtr:c~4b~~ 9 C San Diego Bay Shoreline, Tidelands Park 91010000 Bacteria Indicators Unknown Nonpoint Source Unknown point source Low 0.38 Miles ~~~~~~~~~..j j~~~ 9 B San Diego Bay Shoreline, Vicinity ofB St 90821000 and Broadway Piers Bacteria Indicators Low Estimated size of impairment is 0.4 miles around the shoreline of the bay. Benthic Community Effects Sediment Toxicity Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source NonpointlPoint Source NonpointlPolnt Source Medium Medium 9.9 Acres 9.9 Acres 9.9 Acres ~~ ",ww~~;w:,=a.~~="""'~"'JJ"'m;;;:;~"'.;."t':!'~G~Jr""'~~Z'~~~~ 9 B San Diego Bay, Shelter Island Yacht Basin 90810000 Copper, Dissolved High 153 Acres 2003 NonpointlPoint Source ~~~~~<">_';.'"io;r~~~~~:tr.:::~~~~¢:<v~,~~~\r~~l:'....J...~ 9 R San Diego River (Lower) 90711000 Fecal Coliform Lower 6 miles. Low Dissolved Oxygen Urban Runoff/Storm Sewers Wastewater NonpointlPoint Source Impairment transcends adjacent Calwater wtareshed 90712. Page 11 of16 Urban Runoff/Storm,Sewers Unknown Nonpoint Source Unknown point source Low 12 Miles Low 12 Miles - -' --- -- - -- - --- ---2002 CW A SECTION 30~( d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD Phosphorus Impairmelll transcends acfjacel1t Calwater watershed 90712. Total Dissolved Solids Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Impairment transcends acfjacelll Calwater watershed 90712. Urban Runoff/Storm Sewers Flow Regulation/Modification Natural Sources Unknown Nonpoint Source Unknown point source Low 12 Miles Low 12 Miles - - Appravel/ by USEPA: JIIly2003 ~~~~~..r~~~~~~~~7~:;t<~";t:.~f><"r,...~~~t11&n~~~:'~~~~~ 9 ~ San Elijo Lagoon 90461000 Bacteria Indicators Low 566 Acres Estimated size o/impairment is 150 acres. NonpointlPoint Source Eutrophic Low 566 Acres Estimated size o/impairment is 330 acres. NonpointlPoint Source Sedimentation/Siltation Medium 566 Acres Estimated size 0/ impairment is 150 acres. NonpointlPoint Source ~~d'",,< ~~~~~~~,..~:t~-:v-~~ 9 R San Juan Creek 90120000 Bacteria Indicators Medium 1 Miles NonpointlPoint Source ~~:-~~1~t>iNw~:xg:o+(AA"",,~~~wmt"l;:$;~P~~,,~~~:;~~.~'Z::ft11~~ "d~~~,~~~':t:'«~tf;Z~~ 9 E San Juan Creek (mouth) 90120000 Bacteria Indicators Medium 6.3 Acres NonpointlPoint Source Y-'~~~-....e~:=.=!~~~~~~%$~""" "" __ M, ~~~.-:~~~~~~ 9 R San Luis Rey River ~031l000 Chloride ImpClirment located at lower 13 miles. Page 12 0/16 Urban Runoff/Storm Sewers Unlmown Nonpoint Source Unknown point source Low 19 Miles - ----- --- - ----- - - 2002 CWA SECTION 30~(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DlElGp REGIONAL WATER QUALITY CONTROL BOARD Total Dissolved Solids Industrial Point Sources Agriculture-storm runoff Urban Runoff/Storm Sewers Surface Mining Flow Regulation/Modification Natural Sources Golf course activities Unknown Nonpoint Source Unknown point source Low 19 Miles - - Approvetf by USEPA: .TlIly2003 ~~..f~~~,bZ.~J~Y~~¥,~~~~.;;:;~::~$!~·l'~'7.$;ml'Jm'ttr.a?';.,..~',,~~~:~~~~~,·qz.;lillm;~~ 9 R Sandia Creek 90222000 Total Dissolved Solids Urban Runoff/Storm Sewers Flow Regulation/Modification Natural Sources Unknown Nonpoint Sou~ce Unknown point source Low 1.5 Miles W;I~%::':'I:1.Il;'l,,\·:t~Wl':AWZ.1':Jn"";m1;$:Z~iNlIl::Z:=~:&~~~'2~'':;'~J~'l<''~~'lI'"~~~ 9 "E Santa Margarita Lagoon 90211000 Eutrophic Low 28 Acres NonpointfPoint Source ~ ~~~.#_~#'~~~~~~n~Y,~~~'~~T~~ 9 R Santa Margarita River (Upper) 90222000 Phosphorus Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Low 18 Miles ~&.~~~~'m.R&~~.'.\rusr19m~~~~ ... J,~>?#~n~..&'£"_~~~"',:'Xl.~~t.~~~'~ 9 R Segunda Deshecha Creek 90130000 I Phosphorus Low 0.92 Miles Turbidity Urban Runoff/Storm Sewers Unknown Nonpolnt Source Unknown point source Construction/Land Development Urban Runoff/Storm Sewers Channelization Low 0.9~ Miles Flow Regulation/Modification Unknown Nonpoint Source U~known.point source ~>',~~,,"L=z-""Ztz:;m:;,:::t;;;<mitAjE,~~"'~::;::;ii;;;.;=:=~~~w~';;;;l3a~~=",=,=~;;;:;x~t!;,~~=~~~ Page 130f16 - - --- - - -- -- ------2002 CWA SECTION 30l(d) LIST OF WATER QUALITY LIMITED SEGMENT .I.n~uv REGIONAL WATER QUALITY CONTROL BOARD Color Urban Runoff/Storm Sewers Unknown Nonpoint Source Unknown point source Low 561 Acres --Approvell by USEPA: JIIly2003 ~~~'%1t~;Z;~:~~l~:mZZWXt;:Ji-,.:T~~~~~ ~;a:,.,~~_~~~;:,:;;;a;:g;~ 9 R Tecolote Creek 90650000 Bacteria Indicators Medium 6.6 Miles NonpoinUPoint Source Cadmium Low 6.6 Miles NonpoinUPoint Source Copper Low 6.6 Miles NonpoinUPoint Source Lead Low 6.6 Miles NonpoinUPoint Source Toxicity Low 6.6 Miles NonpoinUPoint Source Zinc Low 6.6 Miles NonpoinUPoint Source txm%$:;XWiZ:mrm!P'zlt,;:;;a"f.,,~;:::W:;::&~}j:&W:tJiib'ilih>A~~"'~,t>if~t;;;J;J:.r.m-!Zis~_"'""'i...1N.r:"''''~==~",,<:;1~~-=,~~,,'~~'''#W*tJL7,7''~~ 9 R Tijuana River 91111000 Bacteria Indicators Low 5.S Miles NonpoinUPoint Source Eutrophic Low 5.S Miles NonpoinUPoint Source Low Dissolved Oxygen Low 5.S Miles NonpoinUPoint Source Pesticides Low 5.S Miles Nonpoint/Point Source' Solids Low 5.S Miles NonpointlPoint Source Synthetic Organics Low 5.S Miles NonpoinUPoint Source Trace Elements Low 5.S Miles NonpoinUPoint Source Trash Low 5.S Miles . NonpoinUPoint Source nmWi&ZE;~~~~~\'~p;~-~~~g;~~~~~~~~1~~~~ Page 140/16 - -- 9 -- --- ---- ----- E 2002 CWA SECTION 303( d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIE(jO REGIONAL WATER QUALITY CONTROL BOARD Tijuana River Estuary 91111000 Bacteria Indicators Estimated size a/ impairment is 150 acres. Nonpoint/Point Source Eutrophic Estimated size a/ impairment is I acre. NonpoiutiPoint Source Lead Estimated size a/impairment is I acre. Low Dissolved Oxygen Nickel NonpointiPoint Source Urban Runoff/Storm Sewers Wastewater Unknown Nonpoint Source Unknown point source Estimated size a/ impairment is I acre. NonpointiPoint Source Pesticides Estimated size a/impairment is I acre. NonpointiPoint Source Thallium Estimated size a/impairment is I acre. NonpointiPoint Source Trash Estimated size a/impairment is I acre. Low 1319 Acres Low 1319 Acres Low 1319 Acres Low 1319 Acres Low 1319 Acres Low 1319 Acres Low 1319 Acres Low 1319 Acres --Approved by USEPA: JI//y2003 NonpointiPoint Source ~~~~~~~~~~~srr~f'~~;jzw'~~~,;;",~~~~;m~f~'W~~~~~~~;j:'~~~~~~ Page 150/16 - ----_. - - - --- --- --2002 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENT SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD REGIONAL WATER QUALITY CONTROL BOARDS WATER BODY TYPE 1 North Coast B= Bays and Harbors 2 San Francisco Bay C= Coastal ShorelineslBeaches 3 Central Coast E= Estuaries 4 Los Angeles L = LakeslReserviors 5 Central Valley R= Rivers and Streams 6 Lahontan S= Saline Lakes 7 Colorado River Basin T= Wetlands, Tidal 8 Santa Ana W= Wetlands, Freshwater 9 San Diego CALWATER WATERSHED "Calwater Watershed" is the State Water Resourc~~ ,:::ontrol Board hydrological subunit area or an even smaller area delineation. GROUP A PESTICIDES OR CHEM A aldrin, dieldrin, chlordane, endrin, heptachlor, heptachlor epoxide, hexachlorocyclohexane (including lindane), endosu\Can, and toxaphene I Page 16of16 ---Approl'e(l by USEPA: Jllly 2003 I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax(760) 635-0839 APPENDIX E WATERBODY BENEFICIAL USES POOR QUALITY ORIGINAL S I I I I I I I I I I I I I I I I I I I Water Quality Standards Inventory Database \Vater Quality Standards Inventory Hatabase Click on the links below to search for another waterbody. S~ur.<:h. !)y 13~n~Jicl"i t,ses Seorc!l!;ly )<eyword pj!'~rc~l i]y S\f.JRCB I~\.·gjo!J 8,'::r,-0 hy Cnllmlls Djstrk: Sear.ch by' C;'O\llil} Click on the links below to view water quality parameters for Batiquitos Lagoon. B~ftt"fi~'iaJ t:b/;l!> 'W;ller Q:d'!.)" Objcctiws \\:a:'::'T Q!J\:ip} :':artflt{V,' COn'ifi1He!l~c. Y../~lt":-f ()U:1~liy Num<:riC' CJ!t~ri3 'Y .. : atef Quaii!y Ba;..·telj~ C:rityri:l Water Quality Control Board Region: Click on the links below to view comments and corrections logged or to navigate to the comments and corrections input page. CtllTIlllelltt-'4'1.d C'o:-r~ctj\J.I~$"I .. oggeJ Comments and .Cor[cl'ti.ons lllp~1 pa~e s Lagoon lick on the region number for a list of water bodies and reported ydrolo ic units in that region. 9 Hydrorogic CHits: Click on the reported hydrologic unit for a list of water bodies in at unit. Caltnms District: Click on the Caltrans district for a list of water bodies and reported \..l. h drolo ic units in that district. Counties: Click on the reported county name for a list of waterbodies and Page 10f8 reported hydrologic units in that county. Reported Counties Publish~d. Counties *Pka$.c JH'{'; .. 1)~11 rt.,i.1{J!'tcd :1nd 'P~~bfl$h;;d C(')U.H:is."~ rlr~ a$$N:-Jrl~Cd with hYi.i;oh)gie unit; HOi varell)()dy. SAN DIEGO SA~ DIEGO Gcospatia.! \Vatcrbody Systcm Assessment Data. BA.TlQJ..lIIo.s. JAG QQN flnc!udes 305(b) and 303(<1) Dc-lcnnina1"iol1s) RWQCB Beuefkiai Vse Click on the beneficial use for the beneficial use code and description. isting http://endeavor.des.ucdavis.edulwqsidlwaterbody.asp?wb _ fkey=3707 10/2512004 I Water Quality Standards Inventory Database Page 2 of8 I I l~xjsling I EXisting Existing teyJ:fabitat I \tVai0r Quality ObJectives \YMerbody IBcncficia1 Jc < tl~:onstitueut If.'onstitucnt Iconstituent I~oustitucnt Readl list' .onslllucn Concentration Units f}el11Us Comments *No \VQOs A va Hab.k>· I I \VateJr Qmdity Narra.tive Constituents Cotl!>timcnt Constituent' n<~sl.!riptiOll :'iitlme Biosi inmialory Inland IH!n11Ce walcrs, bays and e~tuarjes ami coagta1 lagoon waters shall not contain biostimulatOlY I SUbSt<Hl~CS suhstuncc~ in conccntrations that promote <:l.l!uatic growth to lhe extent that such growths causc lll1isance ~)r adversdy alIen bc:neficiaJ usc:s. Coior Wawrs shall be frec of coloration that causes nl1igancc or adversdy affcct~ benellcial nsc:'l.The natural I color of [Ish, ~hellfish or otber resources in inland surn!ce waters. coastal lagoon or bay and estuary shall not be impaired. DO The dis!--o!ved oxygen concentration in ocean waters shall nN al' any time be dcprc!'.scd more than 10 o;::rc<:nt from ll1<tl \~·hich (lCCllr:-; l1ai\~ratly. as thc result of the discharge of oxygen demanding .... ,·a.<>tc I materials. floating \Val.::r:; shall nolc-ontain noating materiaL induding solids, liquids. foams. and scum in conc.::ntralions ?vlat..:rial 'which cau::;c nuisance or adv(.'rsely affect beneficial USeS. I Oii and Gr.::a~l' \Vaters shall not contain ~)il:;. gwa.,>cs, waxes. or other mUkriuls in concentrations which result iTI a vi<;ibl,~ film ()f coating: on the surface oflh.:: water or on ubjel.'fs in the wate!', Of which CallSI.' nuisance OJ' . which otherwis0 adv,~rsely affect heneficial useR. pH The pH \·aJuc ::;ha1l not be changed at any 11mI.' more than 0.2 pH units fi'om that which occurs I natu.rally.Changt's in 1l011110l ambient pH levels shull not exceed 0.2 units in waters with designated marine (?·iAR), or estuarine (EST), or saline (SAL) ben{'fidal uses. Changes in normal ambient pI [ kvd$ !>hall I:.ot exceed 0.5 units II; frcsh wakrs with designated ~'old fr~;,;hw!lter habitat <-COLD) or \\'arn~ !i·esh,vat(.'r habilat (WAR\:1) bendkial uses. 1n bays and estuarie:-; the pH shall not bedeprcssed I hdow 7.0 nor raised above 9.0. ln inland surfact! waters the pH shall not he depressed bclo\v 6.5 nor raised abo\'\.: x.5. Radioactivity R<),~i(lgl:did(.'" shall not be prescnt in c()nl'cntrations that are dek:tcrious to human. plant, animal, or I llclltatic lii'.:~ nor thut r{,~ll!t i111he accumulation of radiolladidcs in the foud web 1.0 an extt'nt that ;m:'s;;;nL,> a hazard 10 human. planl, animal or aquatic We. Sediment The ~u"pcntkd ;.;cdil11l'l1t h)l;(! and <;uspeuded sediment discharge rate of 'iurface \""atcn, shall not be altered in S;\dl a manner as 10 causc nuisam:e or adversely affect beneficial uses. I Suspended Walcrs :<haH not cor:tilin suspl'uded and selUable solids in concentration,'; of solids thl,lt' cause nuiRancc Solids ~)r adversely affect beneficial usc:s. Toxidty All waters <;halJ ~1e maintained freo of toxic substances in concentrations that are toxIC to; or that I product' d~lril1lental physiological respoll:<es in human. plant, animal, or agnatic life. Conipliance with thb objeni ve \\ ill be dctermined :JY use of indicator organis!'ns. analyses ~)r species di vcrsity, populal ion d.ensity. groV'/lh anomalies, bioassays 0 f appropriate duration. or other 3pPfOpriatc methods I I http://endeavor.des.ucdavis.edulwqsidlwaterbody.asp?wb_fkey=3707 10/2512004 I Water Quality Standards Inventory Database Page 3 of8 I as specified by the Regional Bnar~L The survival of aquatic life in sUlfa~c waters subjected to a wa~tc discharge \)r other ('(lntrollablc water qu;.,Iity factors, shall 1:.ot be less [han that for the same water body in areas unalTected by the waste discharge or, when neC'es~ary, for other control water that is consistent 'with l'(x}l;ircme'nts ~pecificd in US EP/\, State Water Resonrcl's Control Board. As a minimum, I compliance with this objective as stated in the previou;c; sentence shall be evaluated with a 96-hollr awte bioai>say, !n addition, cf!1ucnt limits baiied upon acute bioassays of eftlueots will be prescribed where appropriate, &dditional num(!rical receiving water o~jectjves fur iipeeifie toxicants will be established [i:-; stJ'ficiem datalx'colll(; availabk. and source control of toxic sub~lanccs win he I en cO'Jra gcd. Temperature Thc natmal rec.::iving wah.~r remperature of intrastate water!>: ~haJl11()t be altcred unless it (:an be dC1l1on~lnlted to the ~lltiSnlction of the Regional Board that sueh alterati(111 in temperature does not ad\'ersdy affect beneficial t;St.'s. At no time or place shall the temperatu.re-of any COLD water be in,'rca:::cd more than SF above Ih,> natural ret'eiving water temperature. Task and Odor W:.lters shall rwt cnntain taste or odor prQdueing ~ub:>tance:s at conecntnltiol1s which cause a nuisance or adversely affect benefIcial uscs. The natural taste and odor of fish, shellfIsh or other Regional water I r.::sources ~Js.::d tor human consumption Shall not be impaired in inland surface waters and bays and est'Uarie!'. Tt:rbidity Waters shull be iree of Ghangcs in turbidity that ~ause lluisance or adversely affect beneficial uses. I I \-Vater Quality ~umeric Criteria Hencliciai ~Ilmerk CHllsWm>llL :\tlnll"rk NUnll'rlC Numeric Nmm~ric Nurm~rk Constitllcni ('ollstitucn~' Constituent Omstitut:'llt Constituent 'Cst-XlIme Detail -;\olaximum Cnits Comments Reference :V1AR :-vIercury Background 0.0000005 mg/L Ocean Plan I sea water ;:ol1 .. :enlrat.iol1 ~:tAR Mercury Daily 0.00016 mg/l_ Ocean Plan Maxim'-lm I MAR. Mercury 1 n ~tan taneou 'i Q,0004 mg/L Ocean Plan Muximum MAR I"kkel 6 Mooth 0.005 mg!L Ocean Plan I Median M/\R l'\ickd Daily 0.02 mgiL Ocean Plan Mnximum I MAR N"ickd Ifl::.t:jlltancnus 0.05 m~L Ocean Plan -MuximuHl yiAR Nitrobenzene 30-day 0.0049 mg/L Ocean Plan Average I .\tlAR l'\-llilrosodimdhylaJ:1in~ 30-day 0.OO7} mgil_ (kean Plan Average MAR N .. ,tllt[()<;odiphcny!~unilh~ :SO-day 0.0025 1~1gil Ocean Phm I Average MAR PAns 30-day o.nOOOOxg mg!L Ocean Plan A'vcmge MAR PCBs 30-day 0.000000019 mg!t Ocean Plan I Average '\.1AR Phenolic Compollnds inon-6 Month 0.03 l1lgiL Ocean "plan chl(ll'inated) Nkdian I MAR Phenolic Compounds (noo-Daily 0.12 mg/L Ot:ean Plan chlorinated) \1a>..im:Hl1 .\'ft\1{ Pb.:nolic Compound}; (n011-In~lanl'ane~)us OJ mg!L . Oeean Plan I d,lonnated) Maximum MAR Silver 6l\·10nth 0.007 mg/L Ocean Plan Median I I http://endeavor.des.ucdavis.edulwqsidlwaterbody.asp?wb_fkey=3707 10/25/2004 I Water Quality Standards Inventory Database Page 4 of8 I MAR Silver Background O.OOOl6 mg/L Ocean Plan I sea water concentrmion :vIAR $ilver Daily OJj028 mg/L Ocean Plan Max.imJn1 I M'AR Silver In~tantll1lcou;; 0.0007 mgiL Oeean Plan Maximum \liAR TeDD equivalcr.t:; 30-day O. OOO()()0000003 9 mg!L Ocean Plan I Av.:mg(· MAR 'l .... :trachlof(ldhyk:nc 30-day OJ)99 mg!L Ocean Plan Average I ''vfAR Thallium .30-day G.O 14 rng!L Ocean Plan Average MAR Tolu~'ne 30-day R5 ll1g!L Ocean Plan Average I lviAR 1'G1«I Chlorine Residual 6 Month 0.002 Elg/L Ocean Plan \1edian MA.R Tow'! ('hlorint' R,,':-,idnaI Daily {l.OOx rngd~ Ocean PIuu I Maximum MAR Total Chlorine "Residual fnsmniane-OllS 0.06 mg/L Ocean Plan ~v1axim;,1:11 I\·lAR TGx.aph..:nc 30-day 0.OOOOOU2 [ rng/L Ocean Plan I Average MAR Tributyltin .iO·day o.oooon 14 mgiL Ocean Phm Average I :ViAR Trichloroethylene 30-day 0.027 mg!L Ocean Plan AvC'ragt· !\:fAR Vinyl Chh)ridc 30-day 0.036 mg.!L Ocean Plan I Averaoc '''' 'VlAR. Zinc 6 Month 0.02 mgiL Ocean Plan Median MAR line Bar kf,.'TOli nd 0.008 mg/L Ocean Plan I sea wak~r t'~)nct:nlratioll MAR Zinc Daily 0.08 mgfl, Ocean Plan Yiaximum I , MAR Zinc ln~talltancous 0.2 mgiL : Ocean Plan Maximum WARM Diss(\lv<~d Oxygen --5 mg!L I MAR 1,1.1-Trich h)tnt'thal1t' 30-day 540 mg!L O~'.caT! Plan Average MAR 1,1,2.2-Tetrachloroethane 30-day l.2 mgiL Ocean "Plan I Average MAR J.I ,2-Tri..:hloro~thane 30-day 43 mg/L Ocean Plan Av('rage I MAR I,1-Dichlo!'(1C1hyknc 30-day 7.1 mg!L OCean Plan A\'er:lge MAR 1 ,2·Dichloro~thanc 30-day 0.13 mgiL Ocean Plan Average I :ViAl{ 1.2-Diphenylhydra7ir.e 30-day 0.000]6 mg/L Ocean Plan Ave'rage MAR I,3-Di,~hlol'(lpropene 30-day 0,0089 mg!L ()ccan Plan I Average 1\·1A1< 1 ,.~-Dil'hlGrGbcnz:::nc 30-day 0.018 mg!L Ocean Plan I http:// endeavor.des.ucdavis.edulwqsidlwaterbody .asp?wb _ fkey=3 707 10/25/2004 I Water Quality Standards Inventory Database Page 5 of8 I Average MAR 2.4,6-Trkh!orophC'l1o! 30-day 0.00029 1!1g/L Ocean Plan Ave-rage .vrAR 2,4-Dil1itrophcrloJ 30-c:ay OJJ04 mg/L Oc~an Plan I Aver:lge MAR 2,4 .. DinilINoluc'n..: 30·day 0.0020 mgiL Ocean 'Plan Average I MAR 3.3-Dichlorobenzidine 30-t:ay 0.000008J mgiL Ocean Plan AVe'rage MAR 4,6-Di n i1!\)-2 -~vlethy 1 :Jl:enoj 30-day 0.:22 mg/L Ocean Plan Average I MAR Acrolein 30-day 0.22 1~1giL Ocean 'Plan Average MAR ACt},lonirrilc 30-day 0.0001 mg/I. . Ocean Plan I AvC'rage '\'lAR Aldrin 30-day () .000000022 mg!L Oc-<!an Plan Average l\:fAR Ami:nony 30· (;8Y L2 l:lg/L Ocean 'Plan I Average ,\1AH Ar~enic 6 Monlb O.OOR mg/L Ocean Plan i'vkdian I MAR Ars~J1i.: Backgrour;d 0.003 mg!L Ocean Plun $ea waleI' concentration I M/\R Arsenic Daily 0.032 mg/L Ocean Plan !vla,imu1TI MAR Ar;';enic I ll!'tantanC'ot!s O.ml mer!L ' O\.'~an Plan '" Maximum I MAR 13erzl'm~ 30-day 0.0059 mg;1. Oeean Plan Average MAR Benzidine 30-day 0.000000069 mg!L Ocean Plan I Average 1\:IAR Beryllium 30-day 0,000033 mg!L Ocean Plan Average \:1'AR Bi,,(2-chloroethoxy) 30-ill1Y O.O()44 mgr[, Oc(~an Nan I melhane ;\ \'crage Bb( 2-ehlol\)<.'thyl) clb~r 30-duy 0.000045 mgiL -, Ocean Plan , \lIAR Average-I YIAR BisC .. ch!ortli~opropy!) elllCr :;O-day ; ") 1.-rngil. Ocean Plan Averug<: MAR i1i,,(2 'dhylhcxyl) phthalate .30-r.ay 0.00:;5 mgil_ ()ceul1 Plan Average I \1AR (:ad1:1iu111 6 ~.jonth D.OO[ mg/L Ocean Plan \:1edian :\-1AR ('adl:lium Daily 0.004 mg!L Ocean Plan I Maximum MAR Cadmium fnstantancow; 0.01 mgiL Ocean Plan Ylaximul1l I MAR Carbon -T clmel! jnri de 30-day 0.0009 mg!L . Ocean Plan Avt:rag(' MAR Chlordane :;O-l:ay 0,000000023 rng/L Ocean Phm A\'erugc I M:\R ('hlorinatcd Pher;,'llics 6 tvjOnlh 0.001 mg/L Ocean 'f>lan Median I I http://endeavor.des.ucdavis.edulwqsidlwaterbody.asp?wb_fkey=3707 10/25/2004 I Water Quality Standards Inventory Database Page 6 of8 I MA.R Chlorinated Phl:rlulics Daily f).004 mglL OCeaIl Plan I Maximum MAR Chlorlnawd PhcGolics fnstan1am.'tmf( 0.01 mg/L Ocean Plan .'v1aximll:11 I MAR ChlorobL'nrenc 30-day 0.57 mgJL Ocean Plan Average MAR (,h toro form .iO··day 0.13 mglL OCehl1 Plan Av.::rago:: I \-1AR Chwrdllrll 30-day i90 mg/L Ocean Plan Average M/\R Chromium VI 6 Month 0.002 mg!1J Ocean Plan lvkdian I \r1AR Chromium VI Daily 0.008 mgiL OCCal] Plan Maximum ~1AR Chromium VI [m;j-amani:'ou$ 0.02 mg!L Oc:ean i'lan I Maximum \tU-\R (.]m)J!il.· Toxicity Daily 0.001 TUc Ocean Plan :V1aximum I MAR Ctlppcr 6 j\·jonth 0.003 mg/L • Ocean Plan 'Median MAR Copper Bad;:grollnd O.OO.::? mgiL Ocean Plan sea \vatt'r I conC'<~nlratit)n iV1A.R Copper Daily 0.012 mgi1J Ocean Plail Muximul1l I MAH Copper fnstamanl.~ous D.03 mgtL OCel)l1 Plan Maximum .\-tAR Cyanic.:: 6 Month O'()Ol mgiL Ocean Plan Median I MAR ( yanide Dally 0.004 mgiL Ocean piull Maximum MAR Cyanide Instantaneous 0.01 mgfL Ocean Plan I Mahimum . !vfAR DDT 30-day 0.OOOOO1117 mglL O('~an Plan Avcrage I Mld-< Dichloro('cflzC!ncs .30-oay 5.1 mgiL Ocean Plan Average - MAR Dil.'hloromcthat;c 30-day D,45 mgfL Ocean Plan Average I MAR Dieldrin 30-da) o ,(j(jOOUOO4 mg/L Ocean 'Plan Average MAR Dielhyl phthalate 30-day 33 mg'L Ocean Plan I Average \1r\R Dimethyl phthal::lte 30-day 8':.0 mgiL Ocean Plan AVi:'ragc I MAR Di-n-bulyl plitblate 30-day 3.5 mg/L Ocean Plan Average \1'.I\.R Di,!'o!vcd Oxyg<~n -5 mg!L \riAR Enoosi.tl fan 61'v1onth D.OOOOO9 mglL Ocean Plan I ·:;'·jt'cltan :VIAR EndosulLl.ll Daily 0.000018 11l.?lL Ocean Plan Maximum I MAR Endo~alfan 1 n-;;t:mtancou;,; 0.000027 mg.,L Ocean Pltm Muxim;J!1l I http://endeavor.des.ucdavis.edulwqsidlwaterbody.asp?wb _ fkey=3 707 10/25/2004 I Water Quality Standards Inventory Database Page 7 of8 I MAR Endrin 6 Month O.OOI)O()2 mg!L Ocean Plan I "tviedHHl MAR Endrin Daily O.OO()O04 l11g!L Ocean Plan Max.imum \tfAR Endrin In:;tanlancot:s O.O()()OOti mglL OCl."an Plan l\·1axhml1l MAR Elbylben/,cnc 30-day 4.1 mg/L Ocean Plan I f:\vcrag~' MAR Fluoranlhcnc :;0· (:ay 0.OJ5 ll1giL . Ocean Pian Avwag<.: ;vlAR Ha!nmclhuncs 30-day O.P mgiL Ocean 'Plan I ;\ "crage MAR }JC'H 6 Month 0.000004 in giL Ocean j>lan ?vkdiHn I MAR HCH Daily 0.000008 mgfL Ocean Plan Max.imatn iVfAR HCH Instantaneous 0.000012 m~iL Ocean Plan I Maximum l\!lAR J-fcp1<:K'hh)f 30-day 0.00000072 GlgiL Ocean Plan Average- MAR Hexaehl()rohem:ene :;O .. ·day 0.00000021 mg!L Ol~can I11ml I Avcruue '" MAR Tfexachlorobnl3dicne 30-day OJ] 14 mg!L OCl."an Plan Average I MAR l-!cAa.:hl()rocyck)~1cl1tadicnc 30-day 0.058 mglL Ocean Plan Avcragc MAR HexitchlomC'thane 30-day n.OO:!5 nl'rfL Oceim Plan b Average I MAR hopr,oror.c 30-day 150 mg!T, Ocean 'P13n Average MAR I.:::ad 6l\·1onth 0.002 mg!L Ocean Plan I 'Median I\:IAl{ Lead Daily O.OOg mg/L Oeean Plan \lax!:u'l.n1 I 'tvfA R j,e:ld lo;,!Ontaneow; 0.02 mg!T, O(;ean Plal1 ;vlaximul1l -. . -- MAR Mercury 6 ;'I.·1ontI:. 0.00004 mg/I. Ocean Plan lvledian I I \-Vater Quality Ammonia Criteria Beneficial Constituent Constituent Constituent CousWuent Time Constituent Constituent Usc ~amc pH Temperature Duration C~mecntnttion (nits BIOI. Ammonia a5 1\ -... -0.025 mg!L I \1AR Ammonia as i'\ ... 0.6 mgfL MAR AmmclHia as i'\ -.--2/4 . ;ugiL \!fAR Amrm'l1ia as N ... --6 lUg/L I RARE Ammonia a.'> l\ .-.. ... 0.025 :l1giL REel Ammonia a5 N ---0.025 mgiL REC1 A.l11lTIon ia tl) N -... ... 0.025 mgJt. I WARM Amtn0nia as N -... -0.025 mgiL I I http://endeavor.des.ucdavis.edulwqsidlwaterbody.asp?wb _ fkey=3707 10!2~!2004 I I I I I I I I I I I I I I I I I I I Water Quality Standards Inventory Database \Vater Quality Bacteria Criteria Beneficial ConstHucnt Constituent Constituent Constituent Conecntralion Usc ~ame DetllHs Com'en£mthm Vults REel fecal Log ~!kan -I 0%, of 400 Count per CnlifNn1 Sarnph.!s [{If 30 day 100 ml REel F..:caJ Log ;v1can .. :'\ 200 C'om;r per Coliform Samples !{;f 30 day JOOml REC2 fecal A vi.'ragc-l 0% 0 f l"OOO Count per Colj·f()rm Samples r()r 30 day 100 ml REC2 Feca! A Y'~l'ag(,' .. l·;)r 30 2000 Count per Co I i f()l'm day 100m! Comments c.~m.m~nts Cliek above to go to the Comments input page. © Information Center for the Envjronm~Jlt ./eedback(a.Jice.uuiavis.edu I Seflrdtl ~Qti_~~~J ConsWucnt Comments . Log mean value, Based on more than 10pC'l'cent oftolal samples during any 30-day period. Log ll11;:Ul1 value. Based. on a miniinulU of th)t kss than fiw samples !\)r any 30·-day period. Average value. Basl:d on more than 10 percent of total sampl(!s during any 30-day period. Average valne. Based on saillp!e!< f{)l' a 30 .. day period. \VQSID Home http://endeavor .des.ucdavis.edulwqsid/waterbody.asp?wb _ fkey=3707 Page 80f8 Constitucnt Refert~nce 10/25/2004 I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil EngineerslSurveyors/GeneraJ-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 635-0839 APPENDIX F WATER QUALITY STANDARDS I I I I I I I I I I I I I I I I I I I Water Quality Standards Inventory Database Page 1 of3 \Vater Quality Standards Inventory "Database SC~1.rcl~ hy Ocncfici~11LJ$e-$ Search. by KeYlI-ord Searc!l"by"~.\'iRCH Re;,.;ioJl S!<art;h by Ca:tr:ms District S~arch by County Bcneficial lise Code Click on the beneficial use code for a list of waterbodies with that beneficial use. I"OR. Beneficial Use l'\ame 1.~gricu1tllrn I Supply Click on the link below to navigate to the general comments and corrections input page. G~nJ~l:al COmQl~Jlt~"a.nd C_(ll:rn~.1tim~ Beneficial "Uses Beneficia! Use Description Uses of water for farming, horticulture, or ranching including, but not limited to, irrigation, stock watering, or suppOli of vegetation for range grazing. I£\LL IIAll J3cl1e1kiaJ CsesllAlJ beneficial uses ~QJJA Aquaculture Uses of water I(Jr aquacu1111fc or maricul1me operations including, but not limite{i to, propagation, cultivation. maintenance, or harvesting of aquatic plants and animals for human commmption or bait purposes. 13lQ,L Preservation of LJses of water that support designated areas or habitats, such Biological Habitats as Areas ofSpedal Biological Signjticance (ASBS) •. established refuges, parks sanctuaries. ecological reserves, or other areas where the preservation or enhancement of natural resources required special protection. C.QLD Cold Freshwater U $es 0 f water that support col.d warcr ecosystems inc Iud ing, Habitat but not limited to, preservation or enhancement of aquatic habitats, vegetation, fish. or wildHfe, including invertebrates. ~QJY1M Comm<.'rcial and U&es of water for commercial or recreational collection of Spt)rt Fishing Jish, shellfish. or other organisms including, hut not limited to, uses .involving organisms inten.ded for human consumption or bait purposes. EST Estuarine HabHat Cses of water that support estuarine ecosystems including, but not limited to, preservation or enhancement of CS11larine habitats, vegetation, fish shellfisb, or wildlife (e.g, estuarine mammals. waterfowl, shorebirds). i"L.P I Flooding Beneficial uses of riparian wdlands in flood plain areas and" other wetlands that receive natural surface drainage and butTer it"s passage 19 receiving waters. IFRSH I freshwater Uscs of wai"er lJ1S1 support habitats necessary. at least 1n part, f()r the survival fmd successful maiJltenance of plant or RcpJemshmcnt 1 http://endeavor.des.ucdavis.edulwqsidlbu.asp 10/25/2004 I I I I I I I I I I I I I I I I I I Water Quality Standards Inventory Database Page 2 of3 I II I animal species established lU1d~r state or federal law as rare, .. . threatened or endangered. ~======~~========~~================================~I GWE. INO M.lOR Ground Water Recharge Industrial Service Supply ~=====~ \tlarine Uabitat .\r1igration of Aquati(: Organisms Uses of waleI' for natural or artificial recharge of ground water lor plU-poses of future extraction, maintenance of water quality, or halting salt water intrusion into fresh water aquifers. Uses ofv .. :ater for industrial activities that de). not depend primarily on water quality inciuding, but not limited to, mining, cooling water supply, hydraulic conveyance, gravel washing, fire protection, and oil well repressurization. Uses ofwat~r that support marine ecosystems including, but not limited to, preservation or enhancement of marine habitats, vegetation such as kelp, fish, shellfish, or wildlife (e.g., marine mammals, shore birds). Uscs of water that ::>upport hahitats necessary for migration, acdimatiza1ion between fresh and salt water, or other temporary activities by aquatic organisms, such as anadromollS fish. ~=======~ I MVN. I Municipal and Uses of water for community, military, or individual water Domestic Supply supply systems including, but not limited to. drlnkiJ1g water supply_ I NA V I Navigation ·Uses of water for shipping, travel, or other transpo11ati.ol1 by . . private, military, or commercial Vessels. ~IN= __ 0= __ =N=E=~======iI:r-______ --' No designated beneficial us.es II>.QW I I:ydrop~wcr t;ses of water tor hydropower generation, . GeneratIOn I!===========; / EEQC / Industrial Process . . Supply Uses of water for industrial activities that depend primarily on watcr quaHty. . I RARE I Rare. Threatened or Endangered Species Preservation of Rare, Threatened, (}r Endangered Species. REel Wakr Contact Rccreation USeS of water for recreational activities involving body contact with watcr, where ingestion of water is reasonably possibk These uses include, but are not limited to, swimming. wading, water-skiing, skin and scuba diving. surfing. white water activities, fishing. or use of natural hot springs. REe2 SAL Non-Contact Water L!SC$ of water lor recreational activities involving proximity Recreati.on to water, but not normally IJlvoJi.!iJJg contact with water where ingestion of water is reasonably possible. These uses include, but are nol limited to, picnicking, sunbathing, hiking, beachcombing. Inland Sahne Uses of water that support inland saline water ecm;ystems Waler.I lahitat including, but Dot limited lO, preservation or enhancement of aqua! ic Baline habitats, vegetation, fish or wildl] fe. including invertebrates. I~I======~II II I http://endeavor.des.ucdavis.edulwqsidlbu.asp 10/2512004 I I I I I I I I I I I I I I I I I I I Water Quality Standards Inventory Database Page 3 of3 SJ:lELL Shellfish Uses of water that support habitats suitable for the Harvesting collection of filter-feeding shellfish (e.g., dams. oysters, and mussels) for human consumption, cormnercial, or sports purposes. SP.1VN Spawning, lists of water that su.pport high quality aquatic habitats ReproduC'1 ion, suitable for reproduction and early development offish. and/or Early Developmem WARM Wann Freshwater Uses of water that support waml water ecosystems Habitat including, but not limited 10, preservation Of enhancement of aquatic habitats, vegetation, fish, or wildlife. including inwrtebratcs. WEI Wetland Habitat lises of water that support wetland ecosystems, including, hut not limited to, preservation or enhancement of wetland habitats, vegetation, fish shelli1sh, or wildlHe, and other unique wetl.and functions which enhance water quality, :mch as providing flood and erosion control, stream bank stabilization, and filtration and puri·f1catioD of naturally oc<.:urring contaminanls, WILP Wildlife Habitat Uses of water that support terrestrial ecosystems including, but not limited to, the preservation and eDJlancement of terrestrial habitats, vegetation, wildlife (e.g., mammals, birds. reptiles, amphibians, invertebrates), or wildlife water and food sources WQE Environmental Beneficial uses of walers that support natural enhancement Water Quality or improvement of \-vater qua litY in or downstream of a water body including, but not limited to. erosion control filtration and purification ofnaiurally ()ccurring water pollutants, strcamhank stabilization. malntcmmce of channel integrity, and sjltati~m control. © Information Center for the Environment fi:edhack@ia.ucdllvis.edu : Search I Notices I WQSJDHome wqs.i4@ice.1!~dayis, http:// endeavor .des. ucdavis.edu/wqsid/bu.asp 10/25/2Q04 I I I I I I I I I I I I I I· I I I I I Conway & Associates, Inc. Civil EngineerslSurveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 635-0839 APPENDIX G WATER QUALITY TREATMENT FLOW COMPUTATIONS I I I I I I I I I I I I I I I I I I I Conway & Associates. Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive· Suite 102 • Carlbad, CA 92008· Telephone (760) 753-1453· Fax (760) 434-5831 TREATMENTFLOW COMPUTATIONS Romeria Pointe .... CT 06-221 CP 06-15 APN 216-300-12 & 13 10/22/07 City of Carlsbad WATER QUALITY TREATMENT FLOW COMPUTATIONS Determine treatment flow rate per SWRCB Order No. 2001-01. p.18-19: I, intensity (in/hr) 0.2 in.!hr. TRIBUTARY POST-DEVELOPMENT AREA "A" SUB AREA AREA lie" 010 0100 BASIN (SF) (ACRES) FACTOR C*A (CFS) (CFS) A1 31,255 0.72 0.82 0.59 0.00 0.12 31,255 0.72 0.59 0.00 0.12 weIghted C value: 0.82 III:::i::Ilrllt::lll Fiuw Rait:: . u. i2 (.;r~ Printed 11/15/2007 Page 1 of 1 04001_hydro-3.xls BMP I I I I I I I I I I I I I I I '1 I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pi co Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453 • Fax (760)635-0839 APPENDIX H STORMWATER SEPARATOR TECHNICAL DATA I I I I I I I I I I I I I I I I I I I 102"¢ EXT. BASE 86"¢ O.D. L PLAN (FRAME AND COVER NOT SHOWN FOR CLARITY) Stormceptor+ FRAME AND COVER GRADE ADJUSTERS TO SUIT FINISHED GRADE NOTES 1. THE USE OF FLEXIS~E PIPE CONNECTORS IS RECOMMENDED AT THE INLET AND OUTLET WHERE APPLICABLE. ' 2. THE COVER SHOULD BE POSITIONED OVER THE DROP OUTLET PIPE AND THE OIL CLEANOUT PIPE. 72" x 8" COVER 3.ALL JOINTS SHALL HAVE NEOPRENE GASKETS CONFORMING TO ASTM C443. PROJECT VARIES 56" 6 "¢ OIL CLEANOUT QUTLET '-FLEXIBLE PIPE CONNECTORS (SEE NOTE #1) 4. DESIGNED FOR AASHTO HS-20 LOADING. 5. THE Stormceptor'e> SYSTEM IS PROTECTED BY ONE OR MORE OF THE FOLLOWING U.S. PATENTS: #4985148, #5498331, #5725760, #5753115, #5849181. 6. PRODUCT WEIGHT: 72"¢ BARREL = 1840 Ibs/ft INTEGRAL BASE SLAB = 5670 Ibs COVER SLAB = 3940 Ibs I _~8n -----' 8t== SECTION OTHE CRETEX COMPANIES INC. SCALE 1 /4"= l' -0" REVISION BY DATE DATE DR'N. APVD mu STC 900 NUMBER REV. PRECAST CONCRETE Stormce tortE> I I I I I I I I I I I I -I I I I I I I Stormceptor@ Page 1 of2 SAMPLE SPECIFICATION QHI~Ii!_!Umen_t1.n-l.-ine Separator Unit The oil/sediment separator unit shall be a Stormceptor® model _as manufactured by a licensed Stormceptor® affiliate, or approved equal. The separator shall remove oil and sediment from storm water during frequent wet weather events. The separator shall treat a minimum of 75 to -90 percent of the annual runoff volume and be capable of removing 50 to SO percent of the total suspended sediment load (TSS) and 60 to 95 percent of the floatable free oil. The separator must be capable of trapping silt and clay size particles in addition to large particles. The separator shall be installed underground as part of the storm sewer system and be structurally designed for HS-20 (OHBDC) traffic loading at the surface. The storage in the separator shall be vertically oriented. The separator shall be maintainable from the surface via one access point without requiring entry into the separator. The separator shall be equipped with an internal high flow bypass that regulates the flow rate into the treatment chamber and conveys high flows directly to the -_o.tltIetsu.ch:::.that ·scour-andjorre--suspension-of-material :prevjousl¥ coUectedJrt the separator does not occur. External bypasses are not acceptable. The bypass area shall be physically separated from the separation area to prevent mixing. The separator shall be circl!lar, and constructed from either fiberglass or precast concrete risers. The concrete separator shall be designed and manufactured in accordance with ASTM C-47S. The concrete joints shall be oil resistance, water tight and meet the clesign criteria according to ASTM C-443. In the concrete Stormceptor®, a fiberglass insert, bolted and sealed watertight to the inside of the bypass chamber, will divert low to normal stormwater flows into the treatment chamber. The first 16 inches (405 mm) of oil storage shall be lined with fiberglass to prevent migration through the pores in the concrete. The difference between the inlet pipe elevation to the sE;!parator and the outlet pipe elevation from the separator shall be 1 inch (25 m'm). For a multiple inlet pipe design there is a 3-inch (75 mm) difference between the inlet pipe inverts and the outlet pipe invert. The separator shall be able to be used as a bend structure in the storm sewer system. The access cover for the sep~rator shall http://www.stormceptor.com!generic _ tendering_ specifications.php 11115/2004 I I I I I I I I I I I I I I I I I I I Stonnceptor® Page 2 of2 clearly indicate that it is an oil/sediment separator. The separator shall be capable of containing spills of floatable substances such as free oil and not be compromised by temporary backwater conditions (i.e., trapped pollutants should not be re-suspended and scoured from the separator during backwater conditions). The capabilities of the selected separator must be documented with scientific studies and reports. Copyright Stormceptor®. All Rights Reserved. Legal I Site Map http://www.stonnceptor.com!generic _ tendering_ specifications.php 1111512004 I I I I I I I I I I I I I I I I I I I Stormwater Technology: Stormceptor (Hydro Conduit, formerly CSR New England Pipe) Revised February 2003 The Stormceptor Fact Sheet is one in a series of fact sheets for stormwater technologies and related perfor- mance evaluations, which are undertaken by the Massachusetts STrategic Enviroteclmology Partnership (STEP). A summary of the STEP evaluation entitled, Technology Assessment, Stormceptor CSR New Englanc/ Pipe, Janu- ary 1998 is provided in this fact sheet. When a more thorough understanding of a system is required, the full Technology Assessment should be reviewed. Copies are available for downloading from the STEP Web site (www.stepslte.org! progress/reports) or by contacting the STEP Program (Phone: 617/626/1197, FAX: 6171626/1180, email: linda.benevides@state.ma.us). The information in this fact sheet is subject to future updates as additim~al performance infomlatiol1 becomes available. Description! Defi nition Stormceptor is a prefabricated, underground unit that separates oils, grease, and sediment from stOlmwater runoff when installed with an existing or new pipe conveyance system. The unit is divided into two cham- bers-a treatment and a flow bypass chamber. During typical stoml events, runoff is directed by the inflow weir through a drop pipe into the lower treatment chamber where sediment, oil, and grease are separated from the flow by gravity. The bypass chamber is designed to convey excess stormwater, which overtops the inflow weir, through the system without treatment. Equipment and Sizing The on-line Stolmceptor units are available in eight sizes ranging from six and twelve feet in diameter with capacities of900 to 7200 gallons. Since issuing the STEP assessment -in 1998, the manufacturer has expanded the Stormceptor product line to include a storm drain inlet (STC 450i) and three units (Models STC 11000, STC 13000, and STC16000). These systems are not included in the STEP evaluation. Users and decision-makers may require additional field test results and new data for these new systems in order to accept perfomlance ratings, particularly if they are higher than those reported in the STEP technology assessment and this fact sheet. Stonnceptor units are available in either precast concrete or fiberglass for special applications. Concrete units are pre-engineered for HS-20 min. traffic loading at the surface. Fiberglass units can be used in areas where r I I Figure 1. Stormceptor operation during average flow conditions. there is a potential for oil and chemical spills. Performance! Effectiveness The system is designed to provide separation of sediment, oil, and grease from stormwater by routing runoff into a low-turbulence environment where solids settle and oils float out of solution. The system sizing is based on the area, historical rainfall data, and I 1 1 1 I I 1 I· I I 1 I 1 I I 1 I I I the solids removal efficiency required. It is recommended that the system be used in combination with other stormwater controls to conform with the Massachusetts Stormwater Management Policy and standards. An Imperial Model STC 2000 (equivalent to the Model STC 2400) in Edmonton, Canada treats flow from a 9.8 acre commercial parking lot. This system was monitored during four stonn events in 1996 and shown to have an average total suspended solids (TSS) removal efficiency of 52 percent. In designing a system to achieve a comparable removal efficiency, the relationship be- tween system size and impervious drainage area should be considered, as detailed in Table 1 and the Technology Assessment Report. A Model STC 1200 in Westwood, Massachusetts treats flow from 0.65 acrcs consisting of a paved truck loading area at a manufacturing facility. The unit was monitored for six storm events in 1997, but only four events had measurable TSS influent concentrations. Of these four events, the average TSS removal efficiency was calculated to be 77 percent, which is less than the 80 percent removal targeted by the manufacturer. Based on these field monitoring results, and when the unit sizing follows the guidance in Table 1, removal efficiencies between 52 percent and 77 percent may be achieved where installations have similar rainfall and land use characteristics as those reviewed for the STEP evaluation. It is recommended that additional field re- search and new data be evaluated to validate perfor- mance ratings higher than those verified by STEP. Table 1: Adapted from the Stormceptor sizing for TSS removal in the STEP Technology Assessment. Notes: 1) On some sites, the maximum impervious area may need to be reduced to achieve these TSS removal rates. 2) The terms "critical area sizing" (to achieve 77 percent TSS removal) and "treatment train sizing" (for 52 percent removal) are no longer used by the manufacturer, but unit sizing is still applicable. Specific performance claims for oil and grease were not evaluated by STEP. However, total petroleum hydrocarbons (TPH) were analyzed during the Westwood study. Results indicated that the unit was effective in capturing oils. Technology Status The Stormceptor system provides greater solids separation and higher TSS removal efficiencies than oil and glit separators. Stormceptor systems are among the category of hydrodynamic separators, which are flow-. through devices with the capacity to settle or separate grit, oil, sediment, or other pollutants from stormwater. According to the U.S. Environmental Protection Agency, "Hydrodynamic separators are most effective where the materials to be removed from runoff are heavy particu- lates -which. can be settled -or floatables -which can be captured, rather than solids with poor settleability or dissolved pollutants." Although Stormceptor appears to remove sediment, grit, oil, and grease as clainled by the manufacturer, additional research is needed to determine how much sediment moves through the system untreated. The field studies evaluated for the STEP assessment predate the Stormwater Best Management Practice Demonstration Tier II Protocol (2001), which is applicable in Massachu- setts and other states in the Technology Acceptance Reciprocity Partnership (TARP), to ensure quality controlled studies that can be shared among participating states. Therefore, interstate reciprocity is not available to the manufacturer, based on performance claims that were evaluated by STEP in 1998. If the TARP Protocol requirements are fulfilled in the future, the manufacturer could pursue reciproGal-verification forStorqJ.ceptor systems III participating-TARP states. More information on the TARP Protocol is available on the following Web site: www.dep.state.pa.us/dep/deputate/pollprev/ techservices/tarp. Applications/ Advantages .. Stormceptor systems identified in Table 1 should be used in combination with other BMPs to remove 80 percent of the average annual load of TSS (DEP Stormwater Policy Standard 4). Systems may be well suited for pretreatment in a mixed component system designed for stormwater recharge. .. Performance data show that Stormceptor may provide TSS removal rates in the range of 52 percent to 77 percent when sized according to Table 1. Higher TSS removal rates were achieved during low flow, low in- tensity storms with less than one third of an inch of runoff. Also, by reducing the impervious drainage ar~a, I I I I I I I I I' I I I I I 1 I I I I relative to the system size, the STEP Technology As- sessment Report indicated that higher removal efficien- cies may be achievable. However, STEP recommends collection of additional data "representing a varied set of operating conditions over a realistic maintenance cycle to verifY TSS removal rates greater than 80 percent." ~ The Stormceptor system is suitable for new and retrofit applications. For retrofit applications, it should not take the place of a catch basin for the systems that have been verified. Also, for retrofit applications, it should be installed in lateral lines and not main trunk lines. ~ The system is particularly well suited in constricted ar- eas and where space is limited. -$-It also is suitable for use in'areas of high potential pollut- ant loads (DEP Stormwater Policy Standard 5), where it may be used effectively in capturing and containing oil and chemical spills. Web site: www.state.ma.us/dep/ brp/stormwtr/stormpub.htm. Considerationsl Limitations -$-Systems are not expected to provide significant nutrient (nitrogen and phosphorus) or fecal coliform removal. -$-The systems are not recommended for use in critical areas, such as public drinking water supplies, certified vernal pools, public swimming beaches, shellfish grow- ing areas, cold water fisheries, and some Areas ofCriti- cal Environmental Concern (ACECs), except as a pre- treatment device for BMPs that have been approved by DEP for use in critical areas. The structural BMPs approved for use in critical areas are described in Stan- dard 6 of the Stonnwater Management Policy, www.state.ma.us/dep/brp/stormwtr/stormpub.htm. -$-There is a limited set of useful data for predicting the relationship between treatment efficiency and loading rates. Removal efficiencies have not been demonstrated for all unit sizes. -$-Further research is needed to determine how much TSS bypasses the treatment chamber during certain, higher velocity storm events which recur less frequently. -$-Systems require regular maintenance to minimize the potential for washout of the accumulated sediments. Reliability IMaintenance All BMPs require scheduled, routine maintenance to ensure that they operate as efficiently as possible. Al- though maintenance requirements are site specific, a general relationship between cleaning needs and depths of sediment has been established by the manufacturer. Inspection of the Stormceptor interior should be done after major storm events, particularly in the first year of opera- tion. It is recommended that material in the treatment chamber be pumped out by a vacuum truck semiannually, or when the sediment and pollutant loads reach about 15 percent of the total storage. If the unit is used for spill containment, it should be pumped after the event is contained. Typical cleaning costs were estimatec;l by the manufacturer in 1998 to be $250, with disposal costs averaging $300 to $500. The expected life of a system has been estimated to be 50 to 100 years. STC900 STC'1200 srt 1800 -,- ~lTC2460 - STC3600 STC'4S00 STC' 600if ,-... STC7200 0.5 0.75 1 " • "~""" ,~ .,.. M '" 1 1.25 1 " ""1:5 1.25 Table 2: The Stormceptor system clean out is based on 15 percent of the sediment storage volume in the unit. References Winkler, E.S. 1998. "Technology Assessl11ent, Stormceptor." University of Massachusetts, Amherst, MA. STEP Web site: www.stepsite.org/progress/reports Massachusetts Department of Environmental Protection and Office of Coastal Zone Management. 1997~ ':8.toTIllwater Management Handbooks; Volumes One andTwo." Boston, MA. Handbooks Web site: www.state.ma.us/dep/brp/ stormwtr/stormpub.htm. "Performance of a Proprietary Stormwater Treatment De- vice: The Stormceptor. The Practice of Watershed Protec- tion: Article 120. Thomas. R. Schueler and Heather K. Hol- land editors. 2000. Ellicott City, MD. United States Environmental Protection Agency. "Storm Water Technology Fact Sheet Hydrodynamic Separators." EPA 832-F-99-017. Stormceptor Web sites: www.rinkennaterials.com/ ... stormceptor TARP Web site: www.dep.state.pa.us/depldeputate/ pollprev/techservices/tarp. I I I I I I I I I I I I I I I I I I I EPA NE: Stonn Water -Stonnceptor Page 1 of4 EPA NE Home A-Z Index CElT Virtual Show Home Storm Water Introduction History Virtual Storm Water Trade Show Regulations I f'ermitting in New England Background !nfo Links to Other Sources of Info Technologies Important Information Acknowledgements ------- Wastewater Innovative Technology Inventory U"S .. E~:,v;.roftmental Protection Ag'eney Region 1: New England ~:; Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont & 10 Tribal Nations I 'I!!!PZ' Rl'l.~!J.thQd.it[on~ I Q91J.t~_Q.tll~ I prilJtY~rs191) Search: a:o.io:I EPA HQme > E;PA.f\!~W.t=:ngl<;l119 > WC!t<?~ > ~tqtl])..wateI > C~!L$!:1pw: .St9rm_vv.g,t~r > Stormceptor® Stormceptor® 1-Select a CompanylTechnology ---:3 Narrative Description The Stormceptor@ is a precast modular structure that can be installed on existing and new storm drain systems. Stormceptor@ is an innovative, economical and efficient device that removes a high percentage of oil, sediment, and other urban pollutants from storm water runoff. Its unique design prevents the resuspension or scouring of previously collected pollutants, even during peak storm water flow periods. In addition to removing a large percentage of sediments, it is highly effective at trapping free-floating oil and grease. Since it will not flush out previously collected materials during peak storm water flow periods, Stormceptor@ can be used to monitor site conditions. Maintenance requirements are low-cost and low- frequency. Stormceptor® can be used as a primary water quality device, a pretreatment device, a spill control device, a coastal zone management device, or as an NPDES storm water device. Specifications The Stormceptor@ is available in a choice of materials OElpending on treatment needs and site conditions. Fiberglass units are <;Iesigned for emplacements where there-is a potential-for-oil and=chemical spills, ·and-wher-e·· they accumulate in substantial volumes between cleanups. Precast concretE,:! ,units are manufactured from concrete components that are pre-engineered for traffic loading. Site Constraints/!nstallation Requirements Stormceptor@ installation is simple and rapid, as it is assembled from precast modular components. Typically, installation takes from several hours to % day. The Stormceptor@ can be installed in existing storm drain systems when retrofit water quality control is desired. Applications Stormceptor® is a source control device, best suited for drainage areas under Import~ Criteria innovat technol inJJJ~j! Vendon for conI the acci informa 1 of eac informa remove The tec descripl this site limited technol perforrr benefit~ been pr the ven was ma screen, or techl Therefo confirm legal ac dis.closl perforrr informa the corr by EPA Thecinc compar product does nc implye recomn EPA. http://www.epa.gov INE!assistance! ceitts/stonnwater/techs/stonnceptor.html 1111512004 I I I I I I I I I I I I I I I I I I I EPA NE: Stonn Water -Stonnceptor 10 acres where performance-based water quality control is desired. Small size, vertical orientation, and ease of installation make it a good candidate water quality device for retrofit projects in urban areas. The fiberglass unit, because it is chemically inert, lightweight, and easy to install, is particularly suitable for industrial sites, fuel tank farms, service stations, and restaurant parking lots. The precast concrete unit can be installed in residential subdivisions, commercial parking lots, and on road and highway margins. Dimensions of the systems vary from the Model STC 900, which treats up to 285 gpm with a total holding capacity of 950 gallons, to a Model STC 7200, which treats up to 1110 gpm with a total holding capacity of 7415 gallons. Pretreatment Required? Page 2 of4 Stormceptor® does not require any pretreatment, and, in fact, can be used as a pretreatment device for 80% TSS removal and as a spill control device for removing 90%+ of oil and grease. Performance In January 1988, the Massachusetts Strategic Envirotechnology Partnership (STEP) Program completed its technology assessment of the performance of Stormceptor® and issued verification of TSS removal rates. The technology assessment was updated February 2003. The STEP report indicates that the Stormceptor® appears to be a good technology in areas of higher pollution potential and where space is limited. The Stormceptor® system may be used as a component in combination with different BMP's, or may be used as a stand-alone installation provided that it is sized for 80% TSS removal. Furthermore, the STEP report indicates that existing performance data demonstrate that the Stormceptor® system can provide TSS removal rates up to 77% when sized according to Stormceptor's Sensitive Area criteria. Evidence suggests that the Stormceptor® system may be capable of achieving TSS removal rates of between 89% and 99%, when sized accordingly, under conditions (including climate and land use intenSity) similar to-those reported-at the-Westwood,-Massacbusetts; site. Tne::Stormceptor®- system is a storm water treatment structure providing event":based solids separation. The value added in the Stormceptor® system is the ability to reduce turbulence in the treatment chamber, which makes it better at removing TSS and TP than conventional BMP's in the same category. Maintenance It is recommended that material in the storage section be pumped out annually by a vacuum truck, although monitoring may indicate that the unit needs less frequent service. Typical cleaning costs are estimated at approximately $250, with disposal costs averaging $300 to $500. The absence of filtering media (filters, sand, gravel, etc.) r'educes the difficulty of maintenance. Longevity http://www .epa.govINE/assistancel ceitts/stonnwater/techs(stonnceptor.html 1111512004 I I I I I I I I I I I I I I I I I I I EPA NE: Stonn Water -Stonnceptor Stormceptor® units are manufactured of fiberglass and concrete, and have an expected life of 50 to 100 years. Secondary Beneficial Impacts Page30f4 Because Stormceptor® units are below-grade, there is no need for mosquito control as there would be with wet or dry ponds. Stormceptor@ provides highly effective spill control, which is needed for many applications. Costs Costs for Stormceptor@ units range from $7600 for the STC 900 to $33,560 for the STC 7200 unit. This price structure is for the entire unit, including lubricants and gaskets, flexible pipe connectors, and an HS20 Stormceptora ring and lid. This price is not dependent on the height of the structure. Delivery Time Stormceptor® units can be delivered within 3 to 4 weeks. Local Installations • Summerfield Suites, Burlington, MA (STC 900 and STC 3600) • University Ave., Westwood, MA (STC 900 and two sfc 1200) • Gilmore Bridge, Boston, MA (STC 1200 and STC 1800) • South Bay Complex, Boston, MA (STC 900) • Roadway input, DOT, Bow, NH (STC 2400) • EPA Superfund Site, Stratford, CT (16 units: STC 1200 up to STC 60UO) • Cardinal Honda, Groton, CT (STC 1200) • Clinton Crossing, Clinton, CT (STC 1200) Additional Information A descriptive video is available on request. Manufacturer Company: Address: Telephone: " CSR New England Pipe 69 Neck Road Westfield, MA 01085 (413) 562-8547 http://www .epa.govINE/assistancel ceitts/stonnwater/techs/stonnceptor.html 11115/2004 I I I I 1 1 I· I I I I I I I I I I I I EPA NE: Stonn Water -Stonnceptor Fax: Website: Contact: Telephone: E-mail: (413) 562-7010 www.csrstormceptor.comIF-XH.l1.ch ,m,," ).1 John F. Czach, P.E. Regional Engineer for the New England Region (413) 246-7144 jq:<;lcb@ri.(l!s.~r,~Q.DJ Page 4 of4 Serving COI:1I1~~~icu.t, Maine, Mass.ac;bu&.!tUl!, r~te)'LH.<Ln1P-.l:1.b.ir~, Rllo~eJslan~; Y-~rmQIJ.t, & ~O.Jrlb_!!!. Nations EPA Hom~ I Privacy and Security Notice I Contact Us Last updated on Thursday, September 2nd, 2004 URL: http://www.epa.gov/NElassistance/ceitts/stormwater/techs/stormceptor.html http://www .epa.gov INE/assistance/ ceitts/stonnwater/techs/stonnceptor.html 11115/2004 I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753~1453. Fax (760) 434-5831 APPENDIX I PROPOSED SITE GRADING PLAN ,,1 :1 -I 1 I ;1 I I I I I I I I I I I I I J ~, " \\./'\ ". ~MlMlIIIU. PEl DID 0-3 H BY _'E I'flIIT • PIIHIIlY lIE _ WI.I. I'BlIIEf 1, lIlT 11, "nPDL _ M1. SECI1IIII" N SEE __ "1-' lIE£r JII • SlEET II H BY !EPMA1'£ PIIIIT' ' lIIEIFI!IJ. __ NIlEIECIGIII.-I.,IIITI '15 MaC IF IIIU. WliClHlIlAIM N SEE _1.-1., lIlT. "I PUNlElI MEA -!IlII'E I'!MEJI FS lD MEA _ AT IS .. maE I'I.III1EIIS _/ PIX: HDIlEII SH' PER lIEf I. I SiT. WIEIIE Ml.lll:EllTlD SHICIUULI'AlEIEIIT 1 :7 ~.:. ... Fa: RA_ PER _ C-7 N lLIJIE All. 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SlIT 18 F1lR ALI. fITI£RS I SHEET II CITY OF CARlSBAD IISHEETS I 4 ENGINEERING DEPARTMENT 30 '1UDlJIIJ PLAIIII Nil: ROMERIA POINTE SITE GRAOING PLAN ~ (§) = n= @§) 2) @§ n= @R) ~ (§) @§) @§ (5j) lYb C= (5j) ~ D ~ @§ ~ ~ = ~ = d IY!!I (is @b 2l ~ ;;<; ! ~ ~ i! i ~ " . :t " i :!l i~ .. ~ .. :g ~ ~ t'! ~ 1f 1 i ~ = C) Q ~ ~ .... ;:! uii Q) -'"'"''5 cd u ..... C) .. 0:;: I:Il .3 I:Il '!l <-= .:.3~ 1>,'" cd g I \ i . ii ill \ i i1 r' --i i l _,.;r-tISl'EdTaR 1 ----;.>t.-REVISION DESCRIPTION ~ ~ ••••..• tl ~~~~ ~ .,."h;..... Ot(i Nov ee,.2007 1:5:52:14-P:\D4-001 BNR g\Ow;-\04oaIGPD.5.dwg Purr 0 1-1Q U ~ I I I I I I I I I I· I I I I I I I I I Conway & Associates, Inc. Civil Engineers/Surveyors/General-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 434-5831 APPENDIX J STORM WATER REQUIREMENTS APPLICABILITY CHECKLISTS I I I I I I I I I I I I I I I I I I I Conway & Associates, Inc. Civil EngineerslSurveyors/Generai-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 434-5831 Storm Water Resource Standards -Section 1. Permanent Storm Water BMP Requirements: Part A: Determine Priority Project Permanent Storm Water BMP Requirements Does the project meet the definition of one or more of the priority project categories? * Yes No 1. Detached residential development of 10 or more units --J 2. Attached residential development of 10 or more units -V 3. Commercial development greater than 100,000 square feet --J 4. Automotive repair shop --J 5. Restaurant --J 6. Steep hillside development greater than 5,000 sqaare feet --J 7. Project discharging into receiving waters within Environmentally Sensitive Areas " --J , 8. Parking lots greater than or equal to 5000 ft or with at least 'IS parking spaces, and potentially --J exposed to urban runoff 9. Streets, roads, highways, and freeways which would create a new paved surface that is 5,000 square --J feet or greater * Refer to the definitions section in the Storm Water Standards for expanded definitions ofthe priority project categories. Limited Exclusion: Trenching and resurfacing work associated with utility projects are not considered priority projects. Parking lots, buildings and other structures associated with utility projects are priority projects if one or more of the criteria in Part A is met. If all answers to Part A are "No", continue to Part B. Part B: Determine Standard Permanent Storm Water Requirements. Does the project meet the definition of one or more of the priority project categories? * Yes No 1. New impervious areas, such as rooftops, roads, parking lots, driveways, paths and sidewalks? --J 2. New pervious landscape areas and irrigation systems? --J 3. Permanent structures within 100 feet of a natural water body? --J 4. Trash storage areas? --J 5. Liquid or solid material loading and unloading areas? --J 6. Vehicle or equipment fueling, washing, or maintenance areas? --J 7. Require a General NPDES Permit for Storm Water Discharges Associated with Industrial --J Activities (except construction)? 8. Commercial or industrial waste handling or storage, excluding typical office or household waste? --J 9. Any grading or ground disturbance during construction? --J 10. Any new storm drains, or alteration to existing storm drains? --J * To find out if your project is required to obtain an individual General NPDES Permit for Storm Water Discharges Associated with Industrial Activities, visit the State Water Resources Control Board web site at www.swrcb.ca.gov/stormwtr/industrial.html p:\04-001 bnr -9\hydro\swmp\appn--i-swappl.doc Page 1 of 2 Pages I I Conway & Associates, Inc. Civil Engineers/Surveyors/Generai-Engineering Contractors AB412412 2525 Pio Pico Drive. Suite 102. Carlsbad, CA 92008. Telephone (760) 753-1453. Fax (760) 434-5831 Storm Water Resource Standards -Section 2. Construction Storm Water BMP Requirements: I Part C: Determine Construction Phase Storm Water Requirements I I I I I I I I I I I I I I I I Would the project meet any ofthese criteria during construction? . Yes No 1. Is the project subject to California's statewide General NPDES Permit for Storm Water Discharges '" Associated With Construction Activities? 2. Does the project propose grading or soil disturbance? '" 3. Would stonn water or urban runoff have the potential to contact any portion of the construction '" area, including washing and staging areas? 4. Would the project use any construction materials that could negatively affect water quality if '" discharged from the site (such as, paints, solvents, concrete, and stucco? Part D: Determine Construction Site Priority D A) High Priority 1) Projects where the site is 50 acres or more and grading will occur during the r~iny season. 2) Projects 1 acre or more. 3) Projects 1 acre or more within or directly adjacent to or discharging directly to a coastal lagoon or other receiving water within an environmentally sensitive area. 4) Projects, active or inactive, adjacent or tributary to sensitive water bodies X B) Medium Priority 1) Capital Improvement Projects where grading occurs, however a Storm Water Pollution Prevention Plan (SWPPP) is not required under the State General Construction Permit (i.e., water and sewer replacement projects, intersection and street re-alignments, widening, comfort stations, etc.) 2) Permit projects in the public right-of-way where grading occurs, such as installation of sidewalk, substantial retaining walls, curb and gutter for an entire street frontage, etc., however SWPPPs are not required. 3) Permit proje.cts_on private property where grading pertnits-are required, h0weveI~_N0tice:-Of Intents (NOIs) and SWPPPs are not required. D C) Low Priority 1) Capital Projects where minimal to no grading occurs, such as signal light and loop installations, street light installations, etc. 2) Permit projects in the public right-of-way where minimal to no grading occurs, stich as-pedestrian ramps, driveway additions, small retaining walls, etc. 3) Permit projects on private property where grading permits are not required, such as small retaining walls, single-family homes~ small tenant improvements, etc. p:\04-001 bnr-9\hydro\swmp\appn.J-swappl.doc Page 2 of 2 Pages