APPENDIXC Detailed Table of Receiving Water Quality Conditions in the Tijuana River WMA W:\27671359\07000-a-r.docx APPENDIXC Detailed Table of Receiving Water Quality Conditions in the Tijuana River WMA This page intentionally left blank W:\27671359\07000-a-r.docx APPENDIXC Detailed Table of Receiving Water Quality Conditions in the Tijuana River WMA Table C-6-1 Receiving Water Conditions in the Tijuana River WMA Temporal Extent Hydrologic Receiving Water Condition Basis Area Wet Dry Lower Watershed Pacific Ocean Tijuana Shoreline at 3/4 Impairment of REC-1 due to Total Coliform, Valley x x 2010 303(d) List mile North of Fecal Coliform, and Enterococcus. (911.1) Tijuana River Tijuana Pacific Ocean Impairment of REC-1 due to Total Coliform, Valley Shoreline at end of x x 2010 303(d) List Fecal Coliform, and Enterococcus (911.1) Seacoast Drive Pacific Ocean Tijuana Shoreline, Tijuana Impairment of REC-1 due to Total Coliform Valley x x 2010 303(d) List HU, at Monument and Fecal Coliform (911.1) Road Pacific Ocean Tijuana Shoreline, Tijuana Impairment of REC-1 due to Total Coliform, Valley x x 2010 303(d) List HU, at the US Fecal Coliform, and Enterococcus (911.1) Border Pacific Ocean Tijuana Shoreline, Tijuana Impairment of REC-1 due to Total Coliform, Valley x x 2010 303(d) List HU, at Tijuana Fecal Coliform, and Enterococcus (911.1) River mouth Pacific Ocean Tijuana Shoreline, Tijuana Possible presence of pathogens including Public workshop Valley x HU, at Tijuana viruses and specifically Hepatitis A. testimony. (911.1) River mouth Tijuana Impairment of REC-1 due to Indicator Valley Tijuana River x x 2010 303(d) List Bacteria. (911.1) Tijuana Sampling results at Elevated Fecal Coliforms and Enterococcus Valley Tijuana River x x MLS reported in LTEA at NPDES monitoring location. (911.1) and Weston Reports. Tijuana Valley Tijuana River Impairment of WARM due to Solids. x x 2010 303(d) List (911.1) Tijuana Impairment of WARM due to Valley Tijuana River x x 2010 303(d) List Sedimentation/Siltation. (911.1) Assessment at MLS Tijuana Poor to fair stream substrate of mostly silt station reported in Valley Tijuana River x and consolidated clay. LTEA and 2011-12 (911.1) Weston Report. W:\27671359\07000-a-r.docx C-1 APPENDIXC Detailed Table of Receiving Water Quality Conditions in the Tijuana River WMA Temporal Extent Hydrologic Receiving Water Condition Basis Area Wet Dry Tijuana Poor stream substrate with stream bed and Assessment at TWAS- Valley Tijuana River banks of unconsolidated sand and silt and x 2 station reported in (911.1) riparian buffer lacking canopy. LTEA. Sampling results at Tijuana MLS reported in LTEA Valley Tijuana River Elevated TSS at NPDES sampling location. x x and Weston Report (911.1) and at TWAS-2 station reported in LTEA. Sampling results at Tijuana MLS reported in LTEA Elevated Turbidity at NPDES sampling Valley Tijuana River x x and Weston Report location. (911.1) and at TWAS-2 station reported in LTEA. Tijuana Valley Tijuana River Impairment of REC-2 due to Trash. x x 2010 303(d) List (911.1) Assessment at trash Tijuana Presence of trash at assessment site in assessment site Valley Tijuana River x 911.12 HSA. reported in 2010-11 (911.1) Weston Report. 2010 303(d) List Sampling results at Tijuana Impairment of WARM due to Total Nitrogen MLS reported in LTEA Valley Tijuana River x x as N. and Weston Report (911.1) and at TWAS-2 station reported in LTEA. Sampling results at Tijuana MLS reported in LTEA Elevated Ammonia as N at NPDES sampling Valley Tijuana River x x and Weston Report location. (911.1) and at TWAS-2 station reported in LTEA. Tijuana Sampling results at Elevated Nitrite as N at NPDES sampling Valley Tijuana River x MLS reported in location. (911.1) Weston Report. 2010 303(d) List Sampling results at Tijuana MLS reported in LTEA Valley Tijuana River Impairment of WARM due to Phosphorus. x x and Weston Report (911.1) and at TWAS-2 station reported in LTEA. W:\27671359\07000-a-r.docx C-2 APPENDIXC Detailed Table of Receiving Water Quality Conditions in the Tijuana River WMA Temporal Extent Hydrologic Receiving Water Condition Basis Area Wet Dry Tijuana Impairment of WARM due to Eutrophic Valley Tijuana River x x 2010 303(d) List conditions. (911.1) Sampling results at Tijuana MLS reported in LTEA Valley Tijuana River Benthic algae at NPDES sampling location. x and at TWAS-2 station (911.1) reported in LTEA. Tijuana Valley Tijuana River Impairment of WARM due to Low DO. x x 2010 303(d) List (911.1) Sampling results at Tijuana MLS reported in LTEA Elevated BOD and COD at NPDES sampling Valley Tijuana River x x and Weston Report location. (911.1) and at TWAS-2 station reported in LTEA. 2010 303(d) List Sampling results at Tijuana MLS reported in LTEA Valley Tijuana River Impairment of WARM due to Pesticides. x x and Weston Report (911.1) and at TWAS-2 station reported in LTEA. 2010 303(d) List Sampling results at Tijuana Impairment of REC-1 due to Surfactants MLS reported in LTEA Valley Tijuana River x x (MBAS). and Weston Report (911.1) and at TWAS-2 station reported in LTEA. Tijuana Valley Tijuana River Impairment of WARM due to Selenium. x x 2010 303(d) List (911.1) Tijuana Valley Tijuana River Impairment of WARM due to Trace Elements. x x 2010 303(d) List (911.1) Tijuana Impairment of MUN due to Synthetic Valley Tijuana River x x 2010 303(d) List Organics. (911.1) 2010 303(d) List Sampling results at Tijuana MLS reported in LTEA Valley Tijuana River Impairment of WARM due to Toxicity. x x and Weston Report (911.1) and at TWAS-2 station reported in LTEA. W:\27671359\07000-a-r.docx C-3 APPENDIXC Detailed Table of Receiving Water Quality Conditions in the Tijuana River WMA Temporal Extent Hydrologic Receiving Water Condition Basis Area Wet Dry Sampling results at Tijuana MLS reported in LTEA Benthic Alterations (poor to very poor IBI Valley Tijuana River x x and Weston Report scores) at NPDES monitoring location. (911.1) and at TWAS-2 station reported in LTEA. Tijuana Sampling results at Valley Tijuana River Elevated oil and grease x TWAS-2 reported in (911.1) LTEA. Tijuana Tijuana River Impairment of REC-1 due to Indicator Valley x x 2010 303(d) List Estuary Bacteria. (911.1) Tijuana Tijuana River Valley Impairment of MAR due to Turbidity. x x 2010 303(d) List Estuary (911.1) Tijuana Tijuana River Valley Impairment of REC-2 due to Trash. x x 2010 303(d) List Estuary (911.1) Tijuana Tijuana River Impairment of EST due to Eutrophic Valley x x 2010 303(d) List Estuary Conditions. (911.1) Tijuana Tijuana River Valley Impairment of MAR due to Low DO. x x 2010 303(d) List Estuary (911.1) Tijuana Tijuana River Valley Impairment of EST due to Pesticides. x x 2010 303(d) List Estuary (911.1) Tijuana Tijuana River Valley Impairment of EST due to Lead. x x 2010 303(d) List Estuary (911.1) Tijuana Tijuana River Valley Impairment of EST due to Nickel. x x 2010 303(d) List Estuary (911.1) Tijuana Tijuana River Valley Impairment of COMM due to Thallium. x x 2010 303(d) List Estuary (911.1) W:\27671359\07000-a-r.docx C-4 APPENDIXC Detailed Table of Receiving Water Quality Conditions in the Tijuana River WMA Temporal Extent Hydrologic Receiving Water Condition Basis Area Wet Dry Upper Watershed Potrero Tecate Creek Impairment of WARM due to Selenium. x x 2010 303(d) List (911.2) Sampling results at Potrero SMC03510 station Tecate Creek Elevated chloride at SMC Station. x (911.2) reported in Weston Report Sampling results at Potrero SMC03510 station Tecate Creek Elevated sulfate at SMC Station. x (911.2) reported in Weston Report. Sampling results at Potrero Benthic Alterations (poor to very poor IBI SMC03510 station Tecate Creek x (911.2) scores) at SMC Station. reported in Weston Report. Sampling results at Potrero SMC03510 station Tecate Creek Elevated Total Nitrogen as N at SMC Station. x (911.2) reported in Weston Report. Sampling results at Potrero SMC03510 station Tecate Creek Elevated Phosphorus at SMC Station. x (911.2) reported in Weston Report. Sampling results at Potrero SMC03510 station Tecate Creek Elevated TDS at SMC Station. x (911.2) reported in Weston Report. Upper Watershed Potrero Trash Assessment Tecate Creek Presence of trash. x (911.2) reported in WURMP annual reports. Barrett Lake Impairment of WARM due to Total Nitrogen Barrett Lake x x 2010 303(d) List (911.3) as N. Barrett Lake Barrett Lake Impairment of MUN due to Manganese. x x 2010 303(d) List (911.3) Barrett Lake Barrett Lake Impairment of MUN due to Perchlorate. x x 2010 303(d) List (911.3) Barrett Lake Barrett Lake Impairment of MUN due to Color. x x 2010 303(d) List (911.3) Barrett Lake Barrett Lake Impairment of MUN due to pH. x x 2010 303(d) List (911.3) W:\27671359\07000-a-r.docx C-5 APPENDIXC Detailed Table of Receiving Water Quality Conditions in the Tijuana River WMA Temporal Extent Hydrologic Receiving Water Condition Basis Area Wet Dry Monument Pine Valley Creek Impairment of MUN due to Turbidity. x x 2010 303(d) List (911.4) (Upper) Morena Morena Reservoir Impairment of MUN due to Ammonia as N. x x 2010 303(d) List (911.5) Morena Morena Reservoir Impairment of WARM due to Phosphorus.