APPENDIX D Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Data or Regulatory Drivers Support MS4 Monitoring Data Consideration as a Receiving Indicates Potential MS4 MS4 Listed as Water Condition Impact Source on the HA Waterbody Condition Dry Wet Dry Wet 303(d) List Determining Factors Pueblo Watershed Pacific Ocean Shoreline, Point Impairment of REC-1 and SHELL due to 908.1   -- --  2010 303(d) Loma HA, at Bermuda Ave total coliform Shelter Island TMDL1, 2010 303(d), and current and 908.1 Impairment of EST due to copper     -- Yacht Basin historical monitoring data San Diego Bay Shoreline, at 2010 303(d) and current monitoring 908.1 Impairment of EST due to copper   ------Americas Cup data San Diego Bay Shoreline, at 908.1 Impairment of EST due to copper   ------2010 303(d) Harbor Island (West Basin) San Diego Bay Shoreline, near Impairment of MAR due to benthic 908.1  -- --  -- TMDL2, 2010 303(d) sub base community effects and sediment toxicity San Diego Bay Shoreline, near TMDL2, 2010 303(d), and historical 908.1 Impairment of MAR due to toxicity --  -- --  sub base monitoring data San Diego Bay Shoreline, Shelter Impairment of REC-1 due to enterococcus, 908.1   -- --  TMDL3 and 2010 303(d) Island Shoreline Park fecal coliform, and total coliform Pacific Ocean, Sunset Cliffs 908.1 Natural Park between Hillside Erosion -- -- ------ Public Input Park and Linear Park 2010 303(d), current and historical 908.2 Chollas Creek Impairment of AGR (WARM) due to copper     -- monitoring data, and TMDL4 2010 303(d), current and historical 908.2 Chollas Creek Impairment of WARM due to zinc      monitoring data, and TMDL4 2010 303(d), current and historical 908.2 Chollas Creek Impairment of WARM due to lead   -- --  monitoring data, and TMDL4 2010 303(d) and TMDL5, and historical 908.2 Chollas Creek Impairment of WARM due to diazinon   ------monitoring data 2010 303(d) and current and historical 908.2 Chollas Creek Impairment of WARM due to phosphorus  ------monitoring data Impairment of WARM due to Total Nitrogen 2010 303(d) and current and historical 908.2 Chollas Creek     -- as N monitoring data Impairment of REC-1 due to indicator 2010 303(d) and TMDL6 and current 908.2 Chollas Creek      bacteria and historical monitoring data 2010 303(d) and current monitoring 908.2 Chollas Creek Impairment of REC-2 due to trash      data 908.2 Chollas Creek Very poor IBI   ------Current monitoring data 908.2 Chollas Creek Elevated enterococcus  --  -- -- Current and historical monitoring data 908.2 Chollas Creek Elevated bifenthrin and TSS --  --  -- Current and historical monitoring data Notes:  = Data supports consideration; -- = No data available (data gap) or inapplicable. 1. TMDL for Dissolved Copper in Shelter Island Yacht Basin, San Diego Bay. Approved 12/2005. 2. Naval Base San Diego TMDL. In development. 3. TMDL for Indicator Bacteria, Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay. Approved 09/2009. 4. TMDL for Dissolved Copper, Lead, and Zinc in Chollas Creek, Tributary to San Diego Bay. Approved 10/2008. 5. Chollas Creek Diazinon TMDL. Approved 09/2003. 6. Revised TMDL for Indicator Bacteria, Project I--Twenty Beaches and Creeks in the San Diego Region (Including Tecolote Creek). Approved 04/2011. 7. TMDL for Toxic Pollutants in Sediment at San Diego Bay Shorelines--Downtown Anchorage and B Street/Broadway Piers. In development. 8. Sediment Toxicity TMDL for the Mouths of Chollas, Paleta, and Switzer Creeks. In development. Page D-1 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Data or Regulatory Drivers Support MS4 Monitoring Data Consideration as a Receiving Indicates Potential MS4 MS4 Listed as Water Condition Impact Source on the HA Waterbody Condition Dry Wet Dry Wet 303(d) List Determining Factors 908.2 Chollas Creek Toxicity   ------Current and historical monitoring data 908.2 Chollas Creek Elevated turbidity, BOD, and COD   ------Current and historical monitoring data 908.2 Chollas Creek Elevated turbidity  --  -- -- Current and historical monitoring data Low O/E and Rapid Assessment 908.2 Chollas Creek  --  -- -- Historical monitoring data Method scores 908.2 Chollas Creek Poor IBI  ------Historical monitoring data 908.2 Chollas Creek pH level outside of water quality objective  ------Historical monitoring data Elevated Ammonia as N, benthic algae, and 908.2 Chollas Creek  ------Current and historical monitoring data oil & grease 908.2 Chollas Creek Elevated permethrin --  ------Historical monitoring data Elevated fecal coliform and surfactants 908.2 Chollas Creek   ------Historical monitoring data (MBAS) 908.2 Chollas Creek Elevated fecal coliform  --  -- -- Historical monitoring data San Diego Bay Shoreline, 32nd St Impairment of MAR due to benthic 908.2   ------2010 303(d) San Diego Naval Station community effects and sediment toxicity San Diego Bay Shoreline, at 908.2 Impairment of EST due to copper   ------2010 303(d) Harbor Island (East Basin) San Diego Bay Shoreline, at 908.2 Impairment of EST due to copper   ------2010 303(d) Marriott Marina San Diego Bay Shoreline, at Impairment of REC-1 and SHELL due to 908.2   ------2010 303(d) Spanish Landing total coliform San Diego Bay Shoreline, 908.2 between Sampson and 28th Impairment of MAR due to copper     -- 2010 303(d) Streets San Diego Bay Shoreline, 908.2 between Sampson and 28th Impairment of MAR due PAHs     -- 2010 303(d) and historical data Streets San Diego Bay Shoreline, 908.2 between Sampson and 28th Impairment of COMM due to mercury     -- 2010 303(d) and historical data Streets San Diego Bay Shoreline, 908.2 between Sampson and 28th Impairment of COMM due to PCBs      2010 303(d) and historical data Streets San Diego Bay Shoreline, 908.2 between Sampson and 28th Impairment of WARM due to zinc     -- 2010 303(d) and historical data Streets

Notes:  = Data supports consideration; -- = No data available (data gap) or inapplicable. 1. TMDL for Dissolved Copper in Shelter Island Yacht Basin, San Diego Bay. Approved 12/2005. 2. Naval Submarine Base San Diego TMDL. In development. 3. TMDL for Indicator Bacteria, Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay. Approved 09/2009. 4. TMDL for Dissolved Copper, Lead, and Zinc in Chollas Creek, Tributary to San Diego Bay. Approved 10/2008. 5. Chollas Creek Diazinon TMDL. Approved 09/2003. 6. Revised TMDL for Indicator Bacteria, Project I--Twenty Beaches and Creeks in the San Diego Region (Including Tecolote Creek). Approved 04/2011. 7. TMDL for Toxic Pollutants in Sediment at San Diego Bay Shorelines--Downtown Anchorage and B Street/Broadway Piers. In development. 8. Sediment Toxicity TMDL for the Mouths of Chollas, Paleta, and Switzer Creeks. In development. Page D-2 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Data or Regulatory Drivers Support MS4 Monitoring Data Consideration as a Receiving Indicates Potential MS4 MS4 Listed as Water Condition Impact Source on the HA Waterbody Condition Dry Wet Dry Wet 303(d) List Determining Factors San Diego Bay Shoreline, Impairment of MAR due to benthic 908.2   -- --  2010 303(d) and historical data Downtown Anchorage community effects and sediment toxicity San Diego Bay Shoreline, Impairment of MAR due to sediment toxicity 908.2 --  -- --  TMDL7 and historical data Downtown Anchorage and benthic community effects San Diego Bay Shoreline, G Impairment of REC-1 and SHELL due to 908.2   ------2010 303(d) Street Pier total coliform San Diego Bay Shoreline, near Impairment of MAR due to benthic 908.2   ------2010 303(d) and TMDL8 Chollas Creek community effects and sediment toxicity San Diego Bay Shoreline, near Impairment of MAR due to benthic 908.2   -- --  2010 303(d) Coronado Bridge community effects and sediment toxicity San Diego Bay Shoreline, near Impairment of MAR due to benthic 908.2      2010 303(d) and TMDL8 Switzer Creek community effects and sediment toxicity San Diego Bay Shoreline, near 908.2 Impairment of COMM due to chlordane   -- --  2010 303(d) and TMDL8 Switzer Creek San Diego Bay Shoreline, Vicinity Impairment of REC-1 and SHELL due to 908.2   -- --  2010 303(d) of B St and Broadway Piers total coliform San Diego Bay Shoreline, Vicinity Impairment of MAR due to benthic 908.2   ------2010 303(d) and TMDL7 of B St and Broadway Piers community effects and sediment toxicity Impairment of WARM due to copper, lead, 2010 303(d) and current monitoring 908.2 Switzer Creek      and zinc data Impairment of WARM due to copper and 2010 303(d) and current monitoring 908.3 Paleta Creek      lead data 908.3 Paradise Creek Impairment of WARM due to selenium   ------2010 303(d) San Diego Bay Shoreline, North of Impairment of MAR due to benthic 908.3   ------2010 303(d) 24th Street Marine Terminal community effects and sediment toxicity San Diego Bay Shoreline, Impairment of MAR due to benthic 908.3 Seventh Street Channel (Paleta   -- --  2010 303(d) and TMDL8 community effects and sediment toxicity Creek) Sweetwater Watershed Lower Sweetwater River, below Impairment of REC-1 due to Enterococcus 2010 303(d) and current monitoring 909.1      Sweetwater Reservoir and fecal coliform data Lower Sweetwater River, below Impairment of WARM due to selenium, 2010 303(d) and current monitoring 909.1   -- --  Sweetwater Reservoir nitrogen, phosphorus, TDS, and toxicity data 909.1 Paradise Creek Impairment of WARM due to selenium   ------2010 303(d) San Diego Bay Shoreline, at Impairment of REC-1 due to Enterococcus 909.1   -- --  Current monitoring data Bayside Park (J Street) and total coliform

Notes:  = Data supports consideration; -- = No data available (data gap) or inapplicable. 1. TMDL for Dissolved Copper in Shelter Island Yacht Basin, San Diego Bay. Approved 12/2005. 2. Naval Submarine Base San Diego TMDL. In development. 3. TMDL for Indicator Bacteria, Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay. Approved 09/2009. 4. TMDL for Dissolved Copper, Lead, and Zinc in Chollas Creek, Tributary to San Diego Bay. Approved 10/2008. 5. Chollas Creek Diazinon TMDL. Approved 09/2003. 6. Revised TMDL for Indicator Bacteria, Project I--Twenty Beaches and Creeks in the San Diego Region (Including Tecolote Creek). Approved 04/2011. 7. TMDL for Toxic Pollutants in Sediment at San Diego Bay Shorelines--Downtown Anchorage and B Street/Broadway Piers. In development. 8. Sediment Toxicity TMDL for the Mouths of Chollas, Paleta, and Switzer Creeks. In development. Page D-3 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Data or Regulatory Drivers Support MS4 Monitoring Data Consideration as a Receiving Indicates Potential MS4 MS4 Listed as Water Condition Impact Source on the HA Waterbody Condition Dry Wet Dry Wet 303(d) List Determining Factors San Diego Bay Shoreline, Chula 909.1 Impairment of EST due to copper   ------Current monitoring data Vista Marina San Diego County Wildlife 909.1 Preservation of special habitat   ------Special Habitat Refuge-Sweetwater Marsh Unit 909.1 Sweetwater River MLS Elevated salinity  ------Current and historical monitoring data 909.1 Sweetwater River MLS Toxicity to C. dubia reproduction  ------Current and historical monitoring data 909.1 Sweetwater River MLS Very poor IBI   ------Historical monitoring data 909.1 Sweetwater River MLS Toxicity to C. dubia acute reproduction   ------Historical monitoring data Toxicity to C. dubia acute and chronic 909.1 Sweetwater River MLS  ------Historical monitoring data survival 909.1 Sweetwater River MLS Elevated Enterococcus  --  -- -- Current and historical monitoring data 909.1 Sweetwater River MLS Elevated dissolved and total phosphorus  --  -- -- Current and historical monitoring data 909.1 Sweetwater River MLS Elevated total nitrogen  --  -- -- Current and historical monitoring data 909.1 Sweetwater River MLS Elevated chloride  --  -- -- Historical monitoring data 909.1 Sweetwater River MLS Low DO  --  -- -- Historical monitoring data 909.1 Sweetwater River MLS Poor IBI  --  -- -- 2010 303(d) 909.1 Sweetwater River MLS Elevated fecal coliform --  --  -- Current and historical monitoring data 909.1 Sweetwater River MLS Toxicity to S. capricornutum   ------2010 303(d) 909.1 Sweetwater River MLS Elevated salinity   ------2010 303(d) Low O/E and California Rapid Assessment 909.1 Sweetwater River MLS  ------2010 303(d) Method scores 909.1 Sweetwater River MLS Elevated bifenthrin and turbidity --  ------Current monitoring data 909.1 Sweetwater River MLS Toxicity to C. dubia reproduction   ------Current monitoring data 909.1 Telegraph Canyon Creek Impairment of WARM due to selenium   ------2010 303(d) 909.2 Sweetwater Reservoir Impairment of MUN due to low DO   -- --  Current and historical monitoring data 909.2 Sweetwater River TWAS Elevated total phosphorus  --  -- -- Current monitoring data 909.2 Sweetwater River TWAS Toxicity to S. capricornutum growth  ------Current monitoring data 909.2 Sweetwater River TWAS Elevated suspended solids --  ------Current monitoring data 909.2 Sweetwater River TWAS Very poor IBI   ------Current and historical monitoring data 909.2 Sweetwater River TWAS Elevated Enterococcus  --  -- -- Current and historical monitoring data 909.2 Sweetwater River TWAS Elevated fecal coliform --  --  -- Current and historical monitoring data 909.2 Sweetwater River TWAS Elevated turbidity --  ------Current and historical monitoring data 909.2 Sweetwater River TWAS Elevated salinity   ------Current and historical monitoring data 909.2 Sweetwater River TWAS Low O/E  ------Historical monitoring data 909.2 Sweetwater River TWAS Elevated benthic algae  ------Historical monitoring data 909.2 Sweetwater River TWAS Poor IBI  ------Historical monitoring data

Notes:  = Data supports consideration; -- = No data available (data gap) or inapplicable. 1. TMDL for Dissolved Copper in Shelter Island Yacht Basin, San Diego Bay. Approved 12/2005. 2. Naval Submarine Base San Diego TMDL. In development. 3. TMDL for Indicator Bacteria, Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay. Approved 09/2009. 4. TMDL for Dissolved Copper, Lead, and Zinc in Chollas Creek, Tributary to San Diego Bay. Approved 10/2008. 5. Chollas Creek Diazinon TMDL. Approved 09/2003. 6. Revised TMDL for Indicator Bacteria, Project I--Twenty Beaches and Creeks in the San Diego Region (Including Tecolote Creek). Approved 04/2011. 7. TMDL for Toxic Pollutants in Sediment at San Diego Bay Shorelines--Downtown Anchorage and B Street/Broadway Piers. In development. 8. Sediment Toxicity TMDL for the Mouths of Chollas, Paleta, and Switzer Creeks. In development. Page D-4 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Data or Regulatory Drivers Support MS4 Monitoring Data Consideration as a Receiving Indicates Potential MS4 MS4 Listed as Water Condition Impact Source on the HA Waterbody Condition Dry Wet Dry Wet 303(d) List Determining Factors 909.2 Sweetwater River TWAS Elevated bifenthrin --  ------Historical monitoring data 909.2 Sweetwater River TWAS Toxicity to S. capricornutum acute   ------2010 303(d) Impairment of MUN due to pH, aluminum, 909.3 Loveland Reservoir   ------2010 303(d) manganese, and low DO 909.1, Impairment of unknown condition due to Public input data (from public 909.2, Not specified   ------trash workshop) 909.3 Otay Watershed Pacific Ocean Shoreline, 910.1 Coronado HA, at Silver Strand Impairment of REC-1 due to Enterococcus   -- --  2010 303(d) (north end, Oceanside) Pacific Ocean Shoreline, Imperial Impairment of REC-1 due to fecal coliform 910.1   -- --  2010 303(d) Beach Pier and total coliform Pacific Ocean Shoreline, Imperial 910.1 Impairment of COMM due to PCBs   ------2010 303(d) Beach Pier Pacific Ocean Shoreline, Otay 2010 303(d) and current monitoring 910.1 Valley HA, at Carnation Ave and Impairment of REC-1 due to total coliform      data Camp Surf Jetty San Diego Bay Shoreline, at 910.1 Impairment of EST due to copper   ------2010 303(d) Coronado Cays San Diego Bay Shoreline, at 910.1 Impairment of EST due to copper   ------2010 303(d) Glorietta Bay San Diego Bay Shoreline, 2010 303(d) and current monitoring 910.1 Impairment of REC-1 due to Enterococcus      Tidelands Park data San Diego Bay Shoreline, 2010 303(d) and current monitoring 910.1 Impairment of SHELL due to total coliform      Tidelands Park data San Diego County Wildlife 910.1 Preservation of special habitat   ------Special Habitat Refuge- Bay Unit 910.2 Elevated Enterococcus  --  -- -- Historical monitoring data Elevated E. coli, fecal coliform, malathion 910.2 Otay River --  --  -- Historical monitoring data and permethrin Toxicity to C. dubia acute and chronic 910.2 Otay River survival, H. azteca acute, and S. --  --  -- Historical monitoring data capricornutum growth 910.2 Otay River Very poor IBI   ------Historical monitoring data 910.2 Otay River Toxicity to C. dubia acute reproduction   ------Historical monitoring data 910.2 Otay River Elevated dissolved and total phosphorus  ------Historical monitoring data Notes:  = Data supports consideration; -- = No data available (data gap) or inapplicable. 1. TMDL for Dissolved Copper in Shelter Island Yacht Basin, San Diego Bay. Approved 12/2005. 2. Naval Submarine Base San Diego TMDL. In development. 3. TMDL for Indicator Bacteria, Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay. Approved 09/2009. 4. TMDL for Dissolved Copper, Lead, and Zinc in Chollas Creek, Tributary to San Diego Bay. Approved 10/2008. 5. Chollas Creek Diazinon TMDL. Approved 09/2003. 6. Revised TMDL for Indicator Bacteria, Project I--Twenty Beaches and Creeks in the San Diego Region (Including Tecolote Creek). Approved 04/2011. 7. TMDL for Toxic Pollutants in Sediment at San Diego Bay Shorelines--Downtown Anchorage and B Street/Broadway Piers. In development. 8. Sediment Toxicity TMDL for the Mouths of Chollas, Paleta, and Switzer Creeks. In development. Page D-5 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Data or Regulatory Drivers Support MS4 Monitoring Data Consideration as a Receiving Indicates Potential MS4 MS4 Listed as Water Condition Impact Source on the HA Waterbody Condition Dry Wet Dry Wet 303(d) List Determining Factors 910.2 Otay River Elevated total nitrogen  --  -- -- Historical monitoring data Elevated surfactants (MBAs), bifenthrin, and 910.2 Otay River --  ------Historical monitoring data turbidity 910.2 Otay River Elevated salinity   ------Historical monitoring data Low O/E and California Rapid Assessment 910.2 Otay River  ------Historical monitoring data Method scores 910.2 Otay River Poor IBI  ------2010 303(d) Toxicity to C. dubia acute and chronic 910.2 Otay River  ------2010 303(d) survival and reproduction Elevated dissolved copper, cyfluthrin, and 910.2 Otay River --  ------2010 303(d) TSS 910.2 Poggi Canyon Creek Impairment of WARM due to toxicity   -- --  2010 303(d) 910.3 Jamul Creek Impairment of WARM due to toxicity   -- --  2010 303(d) Impairment of MUN due to high pH, 910.3   ------2010 303(d) ammonia, color, iron, and manganese 910.3 Lower Otay Reservoir Impairment of WARM due to nitrogen      Historical monitoring data 910.1, Impairment of unknown condition due to 910.2, Not specified   ------Public input data trash 910.3 San Diego Bay (All watersheds) 908.1, Moderate toxicity at some monitoring 909.1, San Diego Bay (all)  ------Historical monitoring data stations 910.1 908.1, 909.1, San Diego Bay (Deep areas) Elevated mercury in deep area sediments  --  -- -- Historical monitoring data 910.1 908.1, 909.1, San Diego Bay (Deep areas) Elevated anthracene in deep area sediments  ------Historical monitoring data 910.1 908.1, San Diego Bay (Freshwater Elevated pesticides in freshwater influenced 909.1,  --  --  Historical monitoring data Influenced Areas) areas 910.1 908.1, San Diego Bay (Freshwater 909.1, Elevated zinc in freshwater influenced areas  --  --  Historical monitoring data Influenced Areas) 910.1

Notes:  = Data supports consideration; -- = No data available (data gap) or inapplicable. 1. TMDL for Dissolved Copper in Shelter Island Yacht Basin, San Diego Bay. Approved 12/2005. 2. Naval Submarine Base San Diego TMDL. In development. 3. TMDL for Indicator Bacteria, Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay. Approved 09/2009. 4. TMDL for Dissolved Copper, Lead, and Zinc in Chollas Creek, Tributary to San Diego Bay. Approved 10/2008. 5. Chollas Creek Diazinon TMDL. Approved 09/2003. 6. Revised TMDL for Indicator Bacteria, Project I--Twenty Beaches and Creeks in the San Diego Region (Including Tecolote Creek). Approved 04/2011. 7. TMDL for Toxic Pollutants in Sediment at San Diego Bay Shorelines--Downtown Anchorage and B Street/Broadway Piers. In development. 8. Sediment Toxicity TMDL for the Mouths of Chollas, Paleta, and Switzer Creeks. In development. Page D-6 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Data or Regulatory Drivers Support MS4 Monitoring Data Consideration as a Receiving Indicates Potential MS4 MS4 Listed as Water Condition Impact Source on the HA Waterbody Condition Dry Wet Dry Wet 303(d) List Determining Factors 908.1, San Diego Bay (Freshwater 909.1, Benthic community effects  ------Historical monitoring data Influenced Areas) 910.1 908.1, San Diego Bay (Freshwater Elevated arsenic in sediments in freshwater 909.1,  ------Historical monitoring data Influenced Areas) influenced areas 910.1 908.1, San Diego Bay (Freshwater Elevated mercury in sediments in freshwater 909.1,  --  -- -- Historical monitoring data Influenced Areas) influenced areas 910.1 908.1, 909.1, San Diego Bay (Industrial areas) Elevated PCBs in industrial area sediments  --  -- -- Historical monitoring data 910.1 908.1, 909.1, San Diego Bay (Industrial areas) Elevated copper in industrial area sediments  --  --  Historical monitoring data 910.1 908.1, Elevated mercury in industrial area 909.1, San Diego Bay (Industrial areas)  --  -- -- Historical monitoring data sediments 910.1 908.1, Elevated copper in marina surface waters 909.1, San Diego Bay (Marinas)  --  --  Historical monitoring data and sediments 910.1 908.1, Elevated mercury in marina surface waters 909.1, San Diego Bay (Marinas)  --  -- -- Historical monitoring data and sediments 910.1 908.1, 909.1, San Diego Bay (Marinas) Elevated zinc in marina sediments  --  --  Historical monitoring data 910.1 908.1, 909.1, San Diego Bay (Marinas) Elevated organics in marina sediments  --  -- -- Historical monitoring data 910.1 908.1, 909.1, San Diego Bay (Marinas) Elevated arsenic in marina sediments  ------Historical monitoring data 910.1 908.1, 909.1, San Diego Bay (Marinas) Elevated mercury in marina sediments  --  -- -- Historical monitoring data 910.1

Notes:  = Data supports consideration; -- = No data available (data gap) or inapplicable. 1. TMDL for Dissolved Copper in Shelter Island Yacht Basin, San Diego Bay. Approved 12/2005. 2. Naval Submarine Base San Diego TMDL. In development. 3. TMDL for Indicator Bacteria, Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay. Approved 09/2009. 4. TMDL for Dissolved Copper, Lead, and Zinc in Chollas Creek, Tributary to San Diego Bay. Approved 10/2008. 5. Chollas Creek Diazinon TMDL. Approved 09/2003. 6. Revised TMDL for Indicator Bacteria, Project I--Twenty Beaches and Creeks in the San Diego Region (Including Tecolote Creek). Approved 04/2011. 7. TMDL for Toxic Pollutants in Sediment at San Diego Bay Shorelines--Downtown Anchorage and B Street/Broadway Piers. In development. 8. Sediment Toxicity TMDL for the Mouths of Chollas, Paleta, and Switzer Creeks. In development. Page D-7 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Data or Regulatory Drivers Support MS4 Monitoring Data Consideration as a Receiving Indicates Potential MS4 MS4 Listed as Water Condition Impact Source on the HA Waterbody Condition Dry Wet Dry Wet 303(d) List Determining Factors 908.1, Mean ER-M quotients for sediment 909.1, San Diego Bay (Marinas)  ------Historical monitoring data chemistry were elevated in marinas. 910.1 908.1, 909.1, San Diego Bay (Marinas) Benthic community effects  ------Historical monitoring data 910.1 908.1, Elevated chlordane in shallow area 909.1, San Diego Bay (Shallow areas)  ------ Historical monitoring data sediments 910.1

Notes:  = Data supports consideration; -- = No data available (data gap) or inapplicable. 1. TMDL for Dissolved Copper in Shelter Island Yacht Basin, San Diego Bay. Approved 12/2005. 2. Naval Submarine Base San Diego TMDL. In development. 3. TMDL for Indicator Bacteria, Baby Beach in Dana Point Harbor and Shelter Island Shoreline Park in San Diego Bay. Approved 09/2009. 4. TMDL for Dissolved Copper, Lead, and Zinc in Chollas Creek, Tributary to San Diego Bay. Approved 10/2008. 5. Chollas Creek Diazinon TMDL. Approved 09/2003. 6. Revised TMDL for Indicator Bacteria, Project I--Twenty Beaches and Creeks in the San Diego Region (Including Tecolote Creek). Approved 04/2011. 7. TMDL for Toxic Pollutants in Sediment at San Diego Bay Shorelines--Downtown Anchorage and B Street/Broadway Piers. In development. 8. Sediment Toxicity TMDL for the Mouths of Chollas, Paleta, and Switzer Creeks. In development. Page D-8 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Conditions with Unknown Contribution from the MS4 Waterbody Condition Elevated Ammonia as N, benthic algae, and oil & grease Elevated bifenthrin and TSS Elevated fecal coliform and surfactants (MBAS) Elevated permethrin Elevated turbidity, BOD, and COD Chollas Creek Impairment of WARM due to diazinon Low O/E and California Rapid Assessment Method scores pH level outside of water quality objective Poor IBI Toxicity Very poor IBI Paradise Creek Impairment of WARM due to selenium San Diego Bay Impairment of EST due to copper Shelter Island Yacht Basin San Diego Bay Shoreline, Impairment of MAR due to 32nd St San Diego Naval Station benthic community effects and sediment toxicity San Diego Bay Shoreline, Impairment of EST due to copper at Americas Cup Harbor San Diego Bay Shoreline, Impairment of EST due to copper at Harbor Island (East Basin) San Diego Bay Shoreline, Impairment of EST due to copper at Harbor Island (West Basin) San Diego Bay Shoreline, Impairment of EST due to copper at Marriott Marina Pacific Ocean Shoreline Erosion at Sunset Cliffs Natural Park San Diego Bay Shoreline, Impairment of REC-1 and SHELL due to total at Spanish Landing coliform San Diego Bay Shoreline, Impairment of REC-1 and SHELL due to total G Street Pier coliform San Diego Bay Shoreline, Impairment of MAR due to near Chollas Creek benthic community effects and sediment toxicity San Diego Bay Shoreline, Impairment of MAR due to near submarine base benthic community effects and sediment toxicity San Diego Bay Shoreline, Impairment of MAR due to north of 24th Street Marine Terminal benthic community effects and sediment toxicity San Diego Bay Shoreline, Impairment of MAR due to vicinity of B St and Broadway Piers benthic community effects and sediment toxicity

Page D-9 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Conditions with Unknown Contribution from the MS4 (continued) Waterbody Condition Impairment of MUN due to Loveland Reservoir pH, aluminum, manganese, and low DO (Not specified) Impairment of unknown condition due to trash Paradise Creek Impairment of WARM due to selenium San Diego Bay Shoreline, Impairment of EST due to copper Chula Vista Marina San Diego County Wildlife Refuge– Preservation of special habitat Sweetwater Marsh Unit Elevated bifenthrin and turbidity Elevated chloride Sweetwater River MLS Elevated salinity Elevated salinity Low DO Low O/E and California Rapid Assessment Method scores Poor IBI Toxicity to C. dubia acute and chronic survival Sweetwater River MLS Toxicity to C. dubia acute reproduction Toxicity to C. dubia reproduction Toxicity to C. dubia reproduction Toxicity to S. capricornutum Very poor IBI Elevated benthic algae Elevated bifenthrin Elevated fecal coliform and turbidity Elevated salinity Elevated suspended solids Sweetwater River TWAS Low O/E Poor IBI Toxicity to S. capricornutum acute Toxicity to S. capricornutum growth Very poor IBI Telegraph Canyon Creek Impairment of WARM due to selenium Impairment of MUN due to Lower Otay Reservoir high pH, ammonia, color, iron, and manganese (Not specified) Impairment of unknown condition due to trash

Page D-10 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

Receiving Water Conditions with Unknown Contribution from the MS4 (continued) Waterbody Condition Elevated dissolved and total phosphorus Elevated dissolved copper, cyfluthrin, and TSS Elevated E. coli, fecal coliform, malathion and permethrin Elevated salinity Elevated surfactants (MBAs), bifenthrin, and turbidity Low O/E and California Rapid Assessment Method Otay River scores Poor IBI Toxicity to C. dubia acute and chronic survival and reproduction Toxicity to C. dubia acute and chronic survival, H. azteca acute, and S. capricornutum growth Toxicity to C. dubia acute reproduction Very poor IBI Pacific Ocean Shoreline, Impairment of COMM due to PCBs Imperial Beach Pier San Diego Bay Shoreline, Impairment of EST due to copper at Coronado Cays San Diego Bay Shoreline, Impairment of EST due to copper at Glorietta Bay San Diego County Wildlife Refuge– Preservation of special habitat South San Diego Bay Unit San Diego Bay (deep areas) Elevated anthracene in deep area sediments Benthic community effects San Diego Bay (freshwater- influenced areas) Elevated arsenic in sediments in freshwater-influenced areas Benthic community effects San Diego Bay (marinas) Elevated arsenic in marina sediments

Page D-11 APPENDIX D San Diego Bay Watershed Management Area— Assessment of Impacts of MS4 Discharges on Potential Receiving Water Conditions

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