Difference between revisions of "Monterey Bay Area TMDL Listings - Priorities, Progress, and Documents"

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|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 
|-
 
|-
−
|Low Dissolved Oxygen, 5A||2010|| '''2010:'''Agriculture '''2012:''' Source Unknown <ref name="2012 Integrated Report 303(d) List">[http://gispublic.waterboards.ca.gov/webmap/303d_2012/files/2012_USEPA_approv_303d_List_Final_20150807wsrcs.xls 2012 Integrated Report 303(d) list]</ref> || 7.3 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River TMDL]
+
|Low Dissolved Oxygen, 5A||2010|| '''2010:'''Agriculture '''2012:''' Source Unknown <ref name="2012 Integrated Report 303(d) List">[http://gispublic.waterboards.ca.gov/webmap/303d_2012/files/2012_USEPA_approv_303d_List_Final_20150807wsrcs.xls 2012 Integrated Report 303(d) list]</ref> || 7.3 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River Nutrients TMDL]
 
|-
 
|-
 
|Nitrate, 5A||2010||'''2010:'''Agriculture '''2012:''' Source Unknown|| 7.3 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River Nutrient TMDL]
 
|Nitrate, 5A||2010||'''2010:'''Agriculture '''2012:''' Source Unknown|| 7.3 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River Nutrient TMDL]
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|-
 
|-
 
|Sedimentation/Siltation, 5A||1990||Channel erosion, land development||8.4||Estimated 2021|| TBD
 
|Sedimentation/Siltation, 5A||1990||Channel erosion, land development||8.4||Estimated 2021|| TBD
 +
|-
 
|}
 
|}
  
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|-
 
|-
 
| pH || 2010 || Agriculture, Boat Discharges, Grazing, Natural Sources, Removal of Riparian Vegetation, Unknown || 62 || Estimated 2021 || TBD
 
| pH || 2010 || Agriculture, Boat Discharges, Grazing, Natural Sources, Removal of Riparian Vegetation, Unknown || 62 || Estimated 2021 || TBD
 +
|}
 +
 +
====Old Salinas River Estuary====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (acres)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Nutriensts || 1992 || Agriculture, Agriculture-irrigation tailwater, irrigated crop production, nonpoint source || 16 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River Nutrient TMDL]
 +
|-
 +
|Pesticides || 1990 || Agriculture return flows, agriculture, agriculture-irrigation tailwater, agriculture-storm runoff, irrigated crop production, nonpoint source || 16 || October 7, 2011 || Will be heard at the May 12-13, 2016 Central Coast Water Board hearing in Watsonville, also see Chlorpyrifos & Diazinon<ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 
|}
 
|}
  
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|-
 
|-
 
|Turbidity || 2010 || Agriculture, Removal of riparian vegetation || 15 || Estimated: 2013 || TBD
 
|Turbidity || 2010 || Agriculture, Removal of riparian vegetation || 15 || Estimated: 2013 || TBD
 +
|-
 +
|}
 +
 +
====Tembladero Slough====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Chlorophyll-a || 2010 || Agriculture, Grazing, Removal of riparian vegetation, Urban runoff/storm sewers || 5.5 || Estimated: 2013 || TBD
 +
|-
 +
|Chlorpyrifos || 2010 || Agriculture, Grazing related sources, Urban runoff/storm sewers || 5.5 || October 7, 2011 || 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb<ref name="Lower Salinas C&D TMDL"> [https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41433&p_report_type= LOWER SALINAS RIVER WATERSHED CHLORPYRIFOS AND DIAZINON TMDLS]</ref>
 +
|-
 +
|Diazinon || 2010 || Agriculture, Grazing related sources, Urban runoff/storm sewers || 5.5 || October 7, 2011 || 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb <ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 +
|Enterococcus || 2010 || Agriculture, Grazing related sources, Urban runoff/storm sewers || 5.5 || Estimated: 2013 || TBD, See Fecal Coliform
 +
|-
 +
|E. Coli || 2010 || Agriculture, Grazing related sources, Urban runoff/storm sewers, Natural sources || 5.5 || Estimated: 2013 || TBD, See Fecal Coliform
 +
|-
 +
|Fecal Coliform || 2002 || Agriculture, Natural sources, Pasture grazing-riparian and/or upland, urban runoff/storm sewers || 5.5 || January 31, 2012 || Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.<ref name="Lower Salinas Fecal Coliform TMDL">[https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41494&p_report_type= Lower Salinas Fecal Coliform TMDL]</ref> 
 +
|-
 +
|Nitrate || 2010 || Agriculture, urban runoff/storm sewers ||5.5 || October 13, 2015 || '''Dry Season:''' Nitrate < 1.4 to 6.4 mg/L '''Wet Season:''' Nitrate < 8 mg/L, '''Year Round:''' Nitrate < 10 mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Nutrients || 1996 || Agriculture Return flows, agriculture, agriculture-irrigation tailwater, agriculture-storm runoff, irrigated crop production, nonpoint source || 5.5 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River Nutrient TMDL]
 +
|-
 +
|Pesticides || 1996 ||  Agriculture Return flows, agriculture, agriculture-irrigation tailwater, agriculture-storm runoff, irrigated crop production, nonpoint source || 5.5 || October 7, 2011 || See Chlorpyrifos & Diazinon<ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 +
|Sediment Toxicity || 2010 || Agriculture, grazing related sources, urban runoff/storm sewers || 5.5 || Estimated: 2013 || Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville<Ref>[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/sed_tox/index.shtml Salinas River Watershed Sediment Toxicity TMDL]</ref>
 +
|-
 +
|Total Coliform || 2010 || Agriculture, grazing related sources, natural sources, urban runoff/storm sewers || 5.5 || Estimated: 2013 || TBD, see also Fecal Coliform
 +
|-
 +
|Turbidity || 2010 || Agriculture, grazing related sources, natural sources, urban runoff/storm sewers || 5.5 || Estimated: 2013 || TBD
 +
|-
 +
|Unknown Toxicity || 2010 || Agriculture, grazing related sources, natural sources, urban runoff/storm sewers || 5.5 || Estimated: 2013 || TBD
 +
|-
 +
|pH || 2010 || Agriculture, grazing related sources, natural sources, urban runoff/storm sewers || 5.5 || Estimated: 2013 || TBD
 +
|-
 +
|}
 +
 +
====Salinas Reclamation Canal====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Ammonia, Unionized || 2006 || Agriculture, Grazing, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers || 7.7 || October 13, 2015 || Year Round un-ionized ammonia as N must not exceed 0.025mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Chlorpyrifos || 2010 || Agriculture, Grazing, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers || 7.7 || October 7, 2011 || 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb<ref name="Lower Salinas C&D TMDL"> [https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41433&p_report_type= LOWER SALINAS RIVER WATERSHED CHLORPYRIFOS AND DIAZINON TMDLS]</ref>
 +
|-
 +
|Copper || 2010 || Agriculture, Grazing, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers || 7.7 || Estimated: 2018 || TBD
 +
|-
 +
|Diazinon || 2010 || Agriculture, Grazing, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers || 7.7 || October 7, 2011 || 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb <ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 +
|E. Coli || 2010 || Agriculture, Grazing, Natural sources, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers || 7.7 || Estimated: 2013 || TBD, See also [https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41494&p_report_type= Lower Salinas Fecal Coliform TMDL]
 +
|-
 +
|Fecal Coliform || 2002 || Agriculture, Grazing, Removal of riparian vegetation, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers || 7.7 || January 31, 2012 || Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.<ref name="Lower Salinas Fecal Coliform TMDL">[https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41494&p_report_type= Lower Salinas Fecal Coliform TMDL]</ref>
 +
|-
 +
|Low Dissolved Oxygen || 2002 || Agriculture, Grazing, Removal of riparian vegetation, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers|| 7.7 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River Nutrients TMDL]
 +
|-
 +
|Nitrate || 2010 || Agriculture, Urban runoff, Storm sewers || 7.7 ||  October 13, 2015 || '''Dry Season:''' Nitrate < 1.4 to 6.4 mg/L '''Wet Season:''' Nitrate < 8 mg/L, '''Year Round:''' Nitrate < 10 mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Pesticides || 1992 || Agriculture, Agriculture return flows, agriculture irrigation tailwater, agriculture storm runoff, irrigated crop production, minor industrial point source, nonpoint source || 7.7 || October 7, 2011 || Will be heard at the May 12-13, 2016 Central Coast Water Board hearing in Watsonville, also see Chlorpyrifos & Diazinon<ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 +
|Priority Organics || 1996 || Agriculture, Agriculture return flows, agriculture irrigation tailwater, agriculture storm runoff, irrigated crop production, minor industrial point source, nonpoint source, unknown source || 7.7 || Estimated: 2013 || TBD
 +
|-
 +
|Sediment Toxicity || 2010 || Agriculture, Grazing, Removal of riparian vegetation, urban runoff-- Industrial and Non industrial permitted, urban runoff/storm sewers|| 7.7 || Estimated: 2013 || Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville<Ref>[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/sed_tox/index.shtml Salinas River Watershed Sediment Toxicity TMDL]</ref>
 +
|-
 +
|Turbidity || 2010 || Agriculture, Grazing, Removal of riparian vegetation, urban runoff-- Industrial and Non industrial permitted, urban runoff/storm sewers || 7.7 || Estimated: 2013 || TBD
 +
|-
 +
|Unknown Toxicity || 2010 || Agriculture, Grazing, Removal of riparian vegetation, urban runoff-- Industrial and Non industrial permitted, urban runoff/storm sewers || 7.7 || Estimated: 2013 || TBD
 +
|-
 +
|pH || 2010 || Agriculture, Grazing, Removal of riparian vegetation, urban runoff-- Industrial and Non industrial permitted, urban runoff/storm sewers || 7.7 || Estimated: 2013 || TBD
 +
|-
 +
|}
 +
 +
====Gabilan Creek====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Ammonia, Unionized || 2010 || Agriculture, Grazing, Other urban runoff || 6.4 || October 13, 2015 || Year Round un-ionized ammonia as N must not exceed 0.025mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Fecal Coliform || 2002 ||  Agriculture, Grazing, Other urban runoff || 6.6 ||  January 31, 2012 || Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.<ref name="Lower Salinas Fecal Coliform TMDL">[https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41494&p_report_type= Lower Salinas Fecal Coliform TMDL]</ref>
 +
|-
 +
|Nitrate || 2006 || Agriculture, Grazing, Other urban runoff || 6.4 ||  October 13, 2015 || '''Dry Season:''' Nitrate < 1.4 to 6.4 mg/L '''Wet Season:''' Nitrate < 8 mg/L, '''Year Round:''' Nitrate < 10 mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Sediment Toxicity || 2010 || Agriculture, Grazing, Other urban runoff || 6.4 || Estimated: 2013 || Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville<Ref>[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/sed_tox/index.shtml Salinas River Watershed Sediment Toxicity TMDL]</ref>
 +
|-
 +
|Turbidity || 2010 || Agriculture, Grazing, Other urban runoff || 6.4 || Estimated: 2013 || TBD
 +
|-
 +
|pH || 2010 || Agriculture, Grazing, Other urban runoff || 6.4 || Estimated: 2013 || TBD
 +
|-
 +
|}
 +
 +
====Natividad Creek====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Ammonia, Unionized || 2010 || Agriculture, Grazing, Other urban runoff || 7 || October 13, 2015 || Year Round un-ionized ammonia as N must not exceed 0.025mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|E. Coli || 2010 || Agriculture, Grazing, Other urban runoff || 7 || Estimated: 2013 || TBD, See also [https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41494&p_report_type= Lower Salinas Fecal Coliform TMDL]
 +
|-
 +
|Low Dissolved Oxygen || 2010 || Agriculture, Grazing, Removal of riparian vegetation, Other urban runoff || 7 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River Nutrients TMDL]
 +
|-
 +
|Nitrate || 2006 || Agriculture, Grazing, Other urban runoff, removal of riparian vegetation || 7 ||  October 13, 2015 || '''Dry Season:''' Nitrate < 1.4 to 6.4 mg/L '''Wet Season:''' Nitrate < 8 mg/L, '''Year Round:''' Nitrate < 10 mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Sediment Toxicity || 2010 || Agriculture, Grazing, Other urban runoff, removal of riparian vegetation || 7 || Estimated: 2013 || Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville<Ref>[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/sed_tox/index.shtml Salinas River Watershed Sediment Toxicity TMDL]</ref>
 +
|-
 +
|Temperature, water || 2010 || Agriculture, Grazing, Other urban runoff, removal of riparian vegetation || 7 || Estimated: 2013 || TBD
 +
|-
 +
|Turbidity || 2010 || Agriculture, Grazing, Other urban runoff, removal of riparian vegetation || 7 || Estimated: 2013 || TBD
 +
|-
 +
|Unknown Toxicity || 2010 ||  Agriculture, Grazing, Other urban runoff, removal of riparian vegetation || 7 || Estimated: 2013 || TBD
 +
|-
 +
|pH || 2010 || Agriculture, Grazing, Other urban runoff || 7 || Estimated: 2013 || TBD
 +
|-
 +
|}
 +
 +
====Alisal Creek====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Chlorophyll-a || 2010 || Agriculture || 16 || Estimated: 2013 || || TBD, Also See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas TMDL]
 +
|-
 +
|Fecal Coliform || 2002 || Agriculture, Natural sources, Nonpoint source, urban runoff/storm sewers || 16 || January 31, 2012 || Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.<ref name="Lower Salinas Fecal Coliform TMDL">[https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41494&p_report_type= Lower Salinas Fecal Coliform TMDL]</ref>
 +
|-
 +
|Nitrate || 2002 || Agriculture, nonpoint source, urban runoff/storm sewers || 16 || October 13, 2015 || '''Dry Season:''' Nitrate < 1.4 to 6.4 mg/L '''Wet Season:''' Nitrate < 8 mg/L, '''Year Round:''' Nitrate < 10 mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Sodium || 2010 || Agriculture, nonpoint source, urban runoff/storm sewers || 16 || Estimated: 2018 || TBD
 
|-
 
|-
 
|}
 
|}
Line 293: Line 464:
 
|Chlorpyrifos || 2010 || Agriculture, Other urban runoff || 14 || October 7, 2011 || 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb<ref name="Lower Salinas C&D TMDL"> [https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41433&p_report_type= LOWER SALINAS RIVER WATERSHED CHLORPYRIFOS AND DIAZINON TMDLS]</ref>
 
|Chlorpyrifos || 2010 || Agriculture, Other urban runoff || 14 || October 7, 2011 || 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb<ref name="Lower Salinas C&D TMDL"> [https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41433&p_report_type= LOWER SALINAS RIVER WATERSHED CHLORPYRIFOS AND DIAZINON TMDLS]</ref>
 
|-
 
|-
−
|Diazinon || 2010 || Agriculture, Other urban runoff || 14 || October 7, 2011 || 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb <ref name="Lower Salinas C&D TMDL"></ref>
+
|Diazinon || 2010 || Agriculture, Other urban runoff || 14 || October 7, 2011 || 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Diazinon must not exceed 0.10ppb <ref name="Lower Salinas C&D TMDL"></ref>
 
|-
 
|-
 
|E. Coli || 2010 || Agriculture, Natural Sources, Other urban runoff || 14 || TBD, See also Fecal Coliform
 
|E. Coli || 2010 || Agriculture, Natural Sources, Other urban runoff || 14 || TBD, See also Fecal Coliform
Line 308: Line 479:
 
|-
 
|-
 
|pH|| 2010 || Agriculture, Urban Runoff/Storm Sewers|| 14 || Estimated: 2013 || TBD
 
|pH|| 2010 || Agriculture, Urban Runoff/Storm Sewers|| 14 || Estimated: 2013 || TBD
 +
|-
 +
|}
 +
 +
====Espinosa Lake====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (acres)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Chlorpyrifos || 2010 || Unknown || 163 || October 7, 2011 || 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb<ref name="Lower Salinas C&D TMDL"> [https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41433&p_report_type= LOWER SALINAS RIVER WATERSHED CHLORPYRIFOS AND DIAZINON TMDLS]</ref>
 +
|-
 +
|Diazinon || 2010 || Agriculture || October 7, 2011 || 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb <ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 +
|}
 +
 +
====Espinosa Slough====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Ammonia, Unionized || 2010 || Agriculture || 1.4 || October 13, 2015|| Year Round un-ionized ammonia as N must not exceed 0.025mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Diazinon || 2010 || Agriculture || 1.4 || October 7, 2011 || 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb <ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 +
|Nitrate || 2010 || Agriculture ||1.4 || October 13, 2015 || '''Dry Season:''' Nitrate < 1.4 to 6.4 mg/L '''Wet Season:''' Nitrate < 8 mg/L, '''Year Round:''' Nitrate < 10 mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|Pesticides || 1996 || Agriculture, Urban runoff/storm sewers || 1.4 || October 7, 2011 || Will be heard at the May 12-13, 2016 Central Coast Water Board hearing in Watsonville, also see Chlorpyrifos & Diazinon<ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 +
|Priority Organics || 1996 || Nonpoint source || 1.4 || Estimated: 2013 || TBD
 +
|-
 +
|Sediment Toxicity || 2010 || Agriculture || 1.4 || Estimated: 2013 || Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville<Ref>[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/sed_tox/index.shtml Salinas River Watershed Sediment Toxicity TMDL]</ref>
 +
|-
 +
|Turbidity || 2010 || Agriculture || 1.4 || Estimated: 2013 || TBD
 +
|-
 +
|Unknown Toxicity || 2010 || Agriculture || 1.4 || Estimated: 2013 || TBD
 +
|-
 +
|pH || 2010 || Agriculture || 1.4 || Estimated: 2013 || TBD
 +
|-
 +
|}
 +
 +
 +
====Esperanza Creek====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Nitrate || 2010 || Unknown || 3.7 ||October 13, 2015 || '''Dry Season:''' Nitrate < 1.4 to 6.4 mg/L '''Wet Season:''' Nitrate < 8 mg/L, '''Year Round:''' Nitrate < 10 mg/L <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref>
 +
|-
 +
|}
 +
 +
====Arroyo Seco River====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Fecal Coliform || 2010 || Unknown || 43 || Estimated: 2021 || TBD
 +
|-
 +
|Temperature, water || 2010 || Unknown || 43 || Estimated 2021 || TBD
 +
|-
 +
|}
 +
 +
====San Lorenzo Creek====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Boron || 2002 || Unknown || 49 || Estimated: 2021 || TBD
 +
|-
 +
|Chloride || 2010 || Grazing-Related sources, Natural source, Unknown sources || 49 || Estimated 2021 || TBD
 +
|-
 +
|Electrical Conductivity || 2010 || Natural Sources || 49 || Estimated 2021 || TBD
 +
|-
 +
|E. Coli || 2010 || Grazing Related Sources, Natural Sources || 49 || Estimated: 2021 || TBD, see also Fecal Coliform
 +
|-
 +
|Fecal Coliform || 2002 || Grazing Related sources, Natural Sources || November 30, 2011 || Geometric mean should not exceed 126/100mL, no sample shoudl exceed the 90% confidence level of 409/100mL <ref name="San Lorenzo Fecal Coliform TMDL"> [https://ofmpub.epa.gov/waters10/attains_impaired_waters.show_tmdl_document?p_tmdl_doc_blobs_id=73620 San Lorenzo Creek Fecal Coliform TMDL]</ref>
 +
|-
 +
|Sodium || 2010 || Grazing Related sources, Natural Sources || 49 || Estimated: 2120 || TBD
 +
|-
 +
|pH || 2010 ||Grazing Related sources, Natural Sources || 49 || Estimated: 2120 || TBD
 +
|-
 +
|}
 +
 +
====San Antolio River====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|E. Coli || 2010 || Natural Sources, Source Unknown || 11 || November 30, 2011 || Must not exceed log mean of 200\100mL, nor shall more than 10% of samples exceed 400/100mL <ref name="SanAntonioRiverFecalTMDL"> [https://ofmpub.epa.gov/waters10/attains_impaired_waters.show_tmdl_document?p_tmdl_doc_blobs_id=73619 San Antonio River Fecal Coliform TMDL]</ref>
 +
|-
 +
|Fecal Coliform || 2010 || Natural Sources, Source Unknown || 11 || November 30, 2011 || Must not exceed log mean of 200\100mL, nor shall more than 10% of samples exceed 400/100mL <ref name="SanAntonioRiverFecalTMDL"> [https://ofmpub.epa.gov/waters10/attains_impaired_waters.show_tmdl_document?p_tmdl_doc_blobs_id=73619 San Antonio River Fecal Coliform TMDL]</ref>
 +
|-
 +
|}
 +
 +
====San Antonio Resevoir====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (acres)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Mercury || 2010 || Source Unknown || 5417 || Estimated: 2021 || TBD
 +
|-
 +
|}
 +
 +
====Moss Landing Harbor====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (acres)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Chlorpyrifos || 2010 || Agriculture, Grazing Related Sources, Other urban runoff || 79 ||October 7, 2011 || 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb<ref name="Lower Salinas C&D TMDL"> [https://iaspub.epa.gov/waters10/attains_impaired_waters.tmdl_report?p_tmdl_id=41433&p_report_type= LOWER SALINAS RIVER WATERSHED CHLORPYRIFOS AND DIAZINON TMDLS]</ref>
 +
|-
 +
|Diazinon || 2010 || Agriculture || October 7, 2011 || 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb <ref name="Lower Salinas C&D TMDL"></ref>
 +
|-
 +
|Low Dissolved Oxygen || 2010 || Source unknown || 79 || October 13, 2015 || See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas River Nutrient TMDL]
 +
|-
 +
|Nickel || 2010 || Agriculture, Dredging, Marinas and Recreational boating, Natural sources, Other urban runoff, Unknown sources || 79 || Estimated: 2021 || TBD
 +
|-
 +
|Pathogens || 1992 || Agriculture, Boat discharges/vessel wastes, nonpoint source || 79 || Estimated: 2021 || TBD
 +
|-
 +
|Pesticides || 1992 || Agriculture, Irrigated and specialty crop production || 79 || Estimated: 2021 || TBD
 +
|-
 +
|Sediment Toxicity || 2010 || Agriculture, Boatyards, Dredging, Grazing related sources, marinas and recreational boating, Other urban runoff || 79 || Estimated: 2021 || TBD
 +
|-
 +
|Sedimentation/Silatation || 1996 || Agriculture, agriculture-storm runoff, channel erosion, dredging, erosion/siltation, hydromodification, irrigated crop production, nonpoint source || 79 || Estimated: 2021 || TBD
 +
|-
 +
|pH || 2010 || Source Unknown || Source unknown || 79 || Estimated: 2021 || TBD
 +
|-
 +
|}
 +
 +
====Bennett Slough====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Chlorophyll-a || 2010 || Source Unknown || 1.9 || Estimated: 2021 || TBD, Also See [http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf Lower Salinas TMDL]
 +
|-
 +
|Low Dissolved Oxygen || 2010 || Source Unknown || 1.9 || Estimated: 2021 || TBD
 +
|-
 +
|pH || 2010 || Source Unknown || 1.9 || Estimated: 2021 || TBD
 +
|-
 +
|}
 +
 +
====Elkhorn Slough====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (acres)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Low Dissolved Oxygen || 2010 || Agriculture, Grazing related sources, Natural sources, Urban runoff/storm sewers || 2034 || Estimated: 2021 || TBD
 +
|-
 +
|Pesticides || 1990 || Agriculture return flows, agriculture, agriculture-storm runoff, contaminated sediments, erosion/siltation, irrigated crop production, nonpoint source || 2034 || Estimated: 2021 || TBD
 +
|-
 +
|Sedimentation/Siltation || 1996 || Agriculture, agriculture-storm runoff, channel erosion, irrigated crop production, nonpoint source || 2034 || Estimated: 2021 || TBD
 +
|-
 +
|Total Coliform || 2010 || Source unknown || 2034 || Estimated: 2021 || TBD
 +
|-
 +
|pH || 2010 || Agriculture, grazing related sources, natural sources, urban runoff/storm sewers || 2034 || Estimated: 2021 || TBD
 +
|-
 +
|}
 +
 +
====Watsonville Creek====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|E. Coli || 2010 || Agriculture, Grazing related sources, Natural Sources || 5.1 || Estimated: 2021 || TBD
 +
|-
 +
|Fecal Coliform || 2010 || Agriculture, Grazing related sources, Natural Sources || 5.1 || Estimated: 2021 || TBD
 +
|-
 +
|Low Dissolved Oxygen || 2010 || Agriculture, Grazing related sources, Groundwater loadings, Removal of riparian vegetation || 5.1 || Estimated: 2021 || TBD
 +
|-
 +
|Nitrate || 2010 || Agriculture, Grazing related sources, Groundwater loadings, Removal of riparian vegetation || 5.1 || Estimated: 2021 || TBD
 +
|-
 +
|pH || 2010 || Agriculture, Grazing related sources, Groundwater loadings, Removal of riparian vegetation || 5.1 || Estimated: 2021 || TBD
 +
|-
 +
|}
 +
 +
====Carneros Creek====
 +
{| class="wikitable" style= "width: 95%;"
 +
|-
 +
|style="vertical-align:bottom; text-align:left;"|'''Pollutant'''
 +
|style="vertical-align:bottom; text-align:left;"|'''First Listed'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Possible Sources'''
 +
|style="vertical-align:bottom; text-align:left;"|'''Assessed Area (miles)'''
 +
|style="width:100px;vertical-align:bottom; text-align:left;"|'''US EPA TMDL Approval Date'''
 +
|style="vertical-align:bottom; text-align:left;"|'''TMDL'''
 +
|-
 +
|Ammonia, Unionized || 2006 || Source Unknown || 12 || Estimated: 2021 || TBD
 +
|-
 +
|Chlorophyll-a || 2010 || Agriculture || 12 || Estimated: 2021 || TBD
 +
|-
 +
|Fecal Coliform || 2010 || Agriculture, natural sources || 12 || Estimated: 2021 || TBD
 +
|-
 +
|Low Dissolved Oxygen ||2010 || Agriculture || 12 || Estimated: 2021 || TBD
 +
|-
 +
|Turbidity || 2010 || Agriculture, Source unknown || 12 || Estimated: 2021 || TBD
 +
|-
 +
|pH || 2010 || Agriculture, Source unknown || 12 || Estimated: 2021 || TBD
 
|-
 
|-
 
|}
 
|}
Line 332: Line 752:
 
** pH, Category 5A
 
** pH, Category 5A
 
For more information, go to [[The Carneros Watershed]]
 
For more information, go to [[The Carneros Watershed]]
−
 
−
* Espinosa Slough
 
−
** Ammonia (Unionized), Category 5A
 
−
** Diazinon, Category 5A
 
−
** Nitrate, Category 5A
 
−
** Pesticides, Category 5A
 
−
** Priority Organics, Category 5A
 
−
** Sediment Toxicity, Category 5A
 
−
** Turbidity, Category 5A
 
−
** Unknown Toxicity, Category 5A
 
−
** pH, Category 5A
 
  
  
Line 396: Line 805:
 
** Unknown Toxicity, Category 5A
 
** Unknown Toxicity, Category 5A
 
** pH, Category 5A
 
** pH, Category 5A
−
 
−
 
−
* Old Salinas River Estuary
 
−
** Nutrients, Category 5A
 
−
** Pesticides, Category 5A
 
  
  

Revision as of 23:19, 3 April 2016

This page on the Monterey Bay Area TMDL listings is intended to provide an overview of agency determinations for the various listed waterbodies in the Monterey Bay. This page was created by the ENVS 560/L Watershed Systems class at CSUMB.

See also: The 303d list of Impaired Waterbodies in the Monterey Bay Region

Monterey Bay Area Listings

See also: Summary of listing categories

Alamo Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Fecal Coliform, 5A 2002 2010: Agriculture, Grazing, Natural Sources [1] 2012: Source Unknown 7.8 Est. 2021 TBD

Alisal Slough[2]

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Low Dissolved Oxygen, 5A 2010 2010:Agriculture 2012: Source Unknown [3] 7.3 October 13, 2015 See Lower Salinas River Nutrients TMDL
Nitrate, 5A 2010 2010:Agriculture 2012: Source Unknown 7.3 October 13, 2015 See Lower Salinas River Nutrient TMDL
Sediment Toxicity, 5A 2010 2012: Source Unknown 7.3 TBD Estimated 2013
Unknown Toxicity (Chlorpyrifos), 5A 2010 2012: Source Unknown 7.3 See Lower Salinas River Estimated 2025

Aptos Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Fecal Coliform, 5A 1990 Collection System Failure, Natural Sources, Onsite Wastewater Systems (Septic Tanks), Pasture Grazing-Riparian and/or Upland, Urban Runoff/Storm Sewers[4] 8.4 January 20, 2011 Fecal Coliform concentration shall not exceed - 200 MPN/100mL (w/ no less than 5 samples for any 30-day period) or 400 MPN/100mL (for no more than 10% of single samples collected during any 30-day period)[5]
Sedimentation/Siltation, 5A 1990 Channel erosion, land development 8.4 Estimated 2021 TBD

Moro Cojo Slough

Pollutant First Listed Possible Sources Assessed Area (acres) US EPA TMDL Approval Date TMDL
Ammonia (Unionized), 5A 2006 Agriculture, Boat Discharges, Grazing, Unknown 62 October 13, 2015[6] See Lower Salinas River
E. Coli 2010 Agriculture, Boat Discharges, Grazing, Natural Sources, Unknown 62 TBD Estimated 2021
Low Dissolved Oxygen 2002 Source Unknown 62 TBD Estimated 2021
Pesticides 2002 Agriculture, Grazing, Riparian Vegetation Removal, Unknown 62 Estimated 2021 No data since 2006
Sedimentation/Siltation 2002 Agriculture, Construction/Land Development, Nonpoint source 62 Estimated 2021 No data since 2006
Total Coliform 2010 Source Unknown 62 Estimated 2021 TBD
pH 2010 Agriculture, Boat Discharges, Grazing, Natural Sources, Removal of Riparian Vegetation, Unknown 62 Estimated 2021 TBD

Old Salinas River Estuary

Pollutant First Listed Possible Sources Assessed Area (acres) US EPA TMDL Approval Date TMDL
Nutriensts 1992 Agriculture, Agriculture-irrigation tailwater, irrigated crop production, nonpoint source 16 October 13, 2015 See Lower Salinas River Nutrient TMDL
Pesticides 1990 Agriculture return flows, agriculture, agriculture-irrigation tailwater, agriculture-storm runoff, irrigated crop production, nonpoint source 16 October 7, 2011 Will be heard at the May 12-13, 2016 Central Coast Water Board hearing in Watsonville, also see Chlorpyrifos & Diazinon[7]

Old Salinas River

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Chlorophyll-a 2010 Agriculture, Dredging, Other urban runoff, Removal of Riparian Vegetation 3.8 TBD TMDL needed, Also See Lower Salinas TMDL
Chlorpyrifos 2010 Agriculture, Other urban runoff 3.8 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb
Diazinon 2010 Agriculture, Other urban runoff 3.8 October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb
Fecal Coliform 2010 Agriculture, Marinas and Recreational boating, natural sources, other urban runoff 3.8 January 31, 2012 Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.[8]
Low Dissolved Oxygen 2010 Agriculture, Marinas and Recreational Boating, Other Urban Runoff, Removal of Riparian Vegetation 3.8 October 13, 2015 See Lower Salinas River Nutrient TMDL
Nitrate 2010 Agriculture, Other urban runoff 3.8 October 13, 2015 See Lower Salinas River Nutrient TMDL
Sediment Toxicity 2010 Agriculture, Other urban runoff 3.8 Estimated: 2013 Will be heard @ Central Coast Water Board hearing May 12-13 2016 [9]
Turbidity 2010 Agriculture, Other urban runoff 3.8 Estimated: 2013 TBD
Unknown Toxicity 2010 Agriculture, Other urban runoff 3.8 Estimated: 2013 TBD
pH 2010 Agriculture, Other urban runoff 3.8 Estimated: 2013 TBD

Salinas River Lagoon (North)

Pollutant First Listed Possible Sources Assessed Area (acres) US EPA TMDL Approval Date TMDL
Pesticides 1992 Agriculture 197 TBD TBD
Nutrients 1992 Nonpoint Source 197 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L, Orthophosphate < 0.7 to 0.13 mg/L Wet Season: Nitrate < 8 mg/L, Orthophosphate < 0.3 mg/L Year Round: Nitrate < 10 mg/L

Blanco Drain

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Chlorpyrifos 2010 Agriculture, Other urban runoff 15 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb[7]
Diazinon 2010 Agriculture 15 October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb [7]
Low Dissolved Oxygen 2010 Agriculture, groundwater loadings 15 October 13, 2015 See Lower Salinas River Nutrient TMDL
Nitrate 2010 Agriculture, groundwater loadings 15 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Pesticides 1998 Agriculture return flows, Agriculture, Agriculture-irrigation tailwater, Agriculture storm runoff, Irrigated crop production, nonpoint source 15 October 7, 2011 See Chlorpyrifos & Diazinon[7]
Turbidity 2010 Agriculture, Removal of riparian vegetation 15 Estimated: 2013 TBD

Tembladero Slough

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Chlorophyll-a 2010 Agriculture, Grazing, Removal of riparian vegetation, Urban runoff/storm sewers 5.5 Estimated: 2013 TBD
Chlorpyrifos 2010 Agriculture, Grazing related sources, Urban runoff/storm sewers 5.5 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb[7]
Diazinon 2010 Agriculture, Grazing related sources, Urban runoff/storm sewers 5.5 October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb [7]
Enterococcus 2010 Agriculture, Grazing related sources, Urban runoff/storm sewers 5.5 Estimated: 2013 TBD, See Fecal Coliform
E. Coli 2010 Agriculture, Grazing related sources, Urban runoff/storm sewers, Natural sources 5.5 Estimated: 2013 TBD, See Fecal Coliform
Fecal Coliform 2002 Agriculture, Natural sources, Pasture grazing-riparian and/or upland, urban runoff/storm sewers 5.5 January 31, 2012 Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.[8]
Nitrate 2010 Agriculture, urban runoff/storm sewers 5.5 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Nutrients 1996 Agriculture Return flows, agriculture, agriculture-irrigation tailwater, agriculture-storm runoff, irrigated crop production, nonpoint source 5.5 October 13, 2015 See Lower Salinas River Nutrient TMDL
Pesticides 1996 Agriculture Return flows, agriculture, agriculture-irrigation tailwater, agriculture-storm runoff, irrigated crop production, nonpoint source 5.5 October 7, 2011 See Chlorpyrifos & Diazinon[7]
Sediment Toxicity 2010 Agriculture, grazing related sources, urban runoff/storm sewers 5.5 Estimated: 2013 Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville[11]
Total Coliform 2010 Agriculture, grazing related sources, natural sources, urban runoff/storm sewers 5.5 Estimated: 2013 TBD, see also Fecal Coliform
Turbidity 2010 Agriculture, grazing related sources, natural sources, urban runoff/storm sewers 5.5 Estimated: 2013 TBD
Unknown Toxicity 2010 Agriculture, grazing related sources, natural sources, urban runoff/storm sewers 5.5 Estimated: 2013 TBD
pH 2010 Agriculture, grazing related sources, natural sources, urban runoff/storm sewers 5.5 Estimated: 2013 TBD

Salinas Reclamation Canal

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Ammonia, Unionized 2006 Agriculture, Grazing, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers 7.7 October 13, 2015 Year Round un-ionized ammonia as N must not exceed 0.025mg/L [10]
Chlorpyrifos 2010 Agriculture, Grazing, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers 7.7 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb[7]
Copper 2010 Agriculture, Grazing, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers 7.7 Estimated: 2018 TBD
Diazinon 2010 Agriculture, Grazing, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers 7.7 October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb [7]
E. Coli 2010 Agriculture, Grazing, Natural sources, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers 7.7 Estimated: 2013 TBD, See also Lower Salinas Fecal Coliform TMDL
Fecal Coliform 2002 Agriculture, Grazing, Removal of riparian vegetation, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers 7.7 January 31, 2012 Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.[8]
Low Dissolved Oxygen 2002 Agriculture, Grazing, Removal of riparian vegetation, Urban runoff--Industrial Permitted & Non industrial permitted, urban runoff/storm sewers 7.7 October 13, 2015 See Lower Salinas River Nutrients TMDL
Nitrate 2010 Agriculture, Urban runoff, Storm sewers 7.7 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Pesticides 1992 Agriculture, Agriculture return flows, agriculture irrigation tailwater, agriculture storm runoff, irrigated crop production, minor industrial point source, nonpoint source 7.7 October 7, 2011 Will be heard at the May 12-13, 2016 Central Coast Water Board hearing in Watsonville, also see Chlorpyrifos & Diazinon[7]
Priority Organics 1996 Agriculture, Agriculture return flows, agriculture irrigation tailwater, agriculture storm runoff, irrigated crop production, minor industrial point source, nonpoint source, unknown source 7.7 Estimated: 2013 TBD
Sediment Toxicity 2010 Agriculture, Grazing, Removal of riparian vegetation, urban runoff-- Industrial and Non industrial permitted, urban runoff/storm sewers 7.7 Estimated: 2013 Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville[12]
Turbidity 2010 Agriculture, Grazing, Removal of riparian vegetation, urban runoff-- Industrial and Non industrial permitted, urban runoff/storm sewers 7.7 Estimated: 2013 TBD
Unknown Toxicity 2010 Agriculture, Grazing, Removal of riparian vegetation, urban runoff-- Industrial and Non industrial permitted, urban runoff/storm sewers 7.7 Estimated: 2013 TBD
pH 2010 Agriculture, Grazing, Removal of riparian vegetation, urban runoff-- Industrial and Non industrial permitted, urban runoff/storm sewers 7.7 Estimated: 2013 TBD

Gabilan Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Ammonia, Unionized 2010 Agriculture, Grazing, Other urban runoff 6.4 October 13, 2015 Year Round un-ionized ammonia as N must not exceed 0.025mg/L [10]
Fecal Coliform 2002 Agriculture, Grazing, Other urban runoff 6.6 January 31, 2012 Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.[8]
Nitrate 2006 Agriculture, Grazing, Other urban runoff 6.4 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Sediment Toxicity 2010 Agriculture, Grazing, Other urban runoff 6.4 Estimated: 2013 Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville[13]
Turbidity 2010 Agriculture, Grazing, Other urban runoff 6.4 Estimated: 2013 TBD
pH 2010 Agriculture, Grazing, Other urban runoff 6.4 Estimated: 2013 TBD

Natividad Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Ammonia, Unionized 2010 Agriculture, Grazing, Other urban runoff 7 October 13, 2015 Year Round un-ionized ammonia as N must not exceed 0.025mg/L [10]
E. Coli 2010 Agriculture, Grazing, Other urban runoff 7 Estimated: 2013 TBD, See also Lower Salinas Fecal Coliform TMDL
Low Dissolved Oxygen 2010 Agriculture, Grazing, Removal of riparian vegetation, Other urban runoff 7 October 13, 2015 See Lower Salinas River Nutrients TMDL
Nitrate 2006 Agriculture, Grazing, Other urban runoff, removal of riparian vegetation 7 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Sediment Toxicity 2010 Agriculture, Grazing, Other urban runoff, removal of riparian vegetation 7 Estimated: 2013 Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville[14]
Temperature, water 2010 Agriculture, Grazing, Other urban runoff, removal of riparian vegetation 7 Estimated: 2013 TBD
Turbidity 2010 Agriculture, Grazing, Other urban runoff, removal of riparian vegetation 7 Estimated: 2013 TBD
Unknown Toxicity 2010 Agriculture, Grazing, Other urban runoff, removal of riparian vegetation 7 Estimated: 2013 TBD
pH 2010 Agriculture, Grazing, Other urban runoff 7 Estimated: 2013 TBD

Alisal Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Chlorophyll-a 2010 Agriculture 16 Estimated: 2013 TBD, Also See Lower Salinas TMDL
Fecal Coliform 2002 Agriculture, Natural sources, Nonpoint source, urban runoff/storm sewers 16 January 31, 2012 Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.[8]
Nitrate 2002 Agriculture, nonpoint source, urban runoff/storm sewers 16 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Sodium 2010 Agriculture, nonpoint source, urban runoff/storm sewers 16 Estimated: 2018 TBD

Salinas River (Lower, estuary to near Gonzales Rd crossing)

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Chlordane 2010 Unknown 31 Estimated: 2013 TBD
Chloride 2010 Agriculture, Grazing, Natural Sources, other urban runoff 31 Estimated: 2018 TBD
Chlorpyrifos 2010 Agriculture, Grazing, Other urban runoff 31 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb[7]
DDD (Dichlorodiphenyldichloroethane) 2010 Source Unknown 31 October 7, 2011 See Diazinon & Chlorpyrifos [7]
Diazinon 2010 Agriculture, Grazing 31 October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb [7]
Dieldrin 2010 Source Unknown 31 October 7, 2011 See Diazinon & Chlorpyrifos [7]
Electrical Conductivity 2010 Source Unknown 31 Estimated: 2013 TBD
Enterococcus Bacteria 2010 Agriculture, Grazing, Illigal dumping, Natural sources, Pasture Grazing-Riparian and/or Upland, Transient encampments, Urban Runoff/storm sewers 31 Estimated: 2013 TBD
E. Coli 2010 Agriculture, Grazing, Illigal dumping, Natural sources, Pasture Grazing-Riparian and/or Upland, Transient encampments, Urban Runoff/storm sewers 31 Estimated: 2013 TBD, See also Lower Salinas Fecal Coliform TMDL
Fecal Coliform 2002 Agriculture, Grazing, Illigal dumping, Natural sources, Pasture Grazing-Riparian and/or Upland, Transient encampments, Urban Runoff/storm sewers 31 January 31, 2012 Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.[8]
Nitrate 2006 Agriculture, Grazing, Urban runoff, Storm sewers 31 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
PCBs (Polychlorinated biphenyls) 2010 Source Unknown 31 Estimated: 2013 TBD
Pesticides 1998 Agriculture, Construction/Land Development, Point source, Urban runoff/Storm Sewers 31 October 7, 2011 Will be heard at the May 12-13, 2016 Central Coast Water Board hearing in Watsonville, also see Chlorpyrifos & Diazinon[7]
Sodium 2010 Source Unknown 31 Estimated: 2018 TBD
Total Dissolved Solids 2010 Source Unknown 31 Estimated: 2018 TBD
Toxaphene 1994 Source unknown 31 Estimated: 2013 TBD
Turbidity 2010 Agriculture, Grazing, Other urban runoff 31 Estimated: 2013 TBD
Unknown Toxicity 2010 Agriculture, Grazing, Other urban runoff 31 Estimated: 2013 TBD
pH 2010 Source Unknown 31 Estimated: 2013 TBD

Salinas River (middle, near Gonzales Rd crossing to confluence with Nacimiento River)

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
E. Coli 2010 Agriculture, Grazing, Land Development, Natural Sources, Other Urban Runoff 72 Estimated: 2021 See also Lower Salinas Watershed Fecal Coliform TMDL
Fecal Coliform 2010 Agriculture, Grazing, Natural Sources, Other Urban Runoff 72 Estimated: 2021 TBD, See also Lower Salinas River
Pesticides 2002 Agriculture Return Flows, Agriculture, Agriculture-irrigation tailwater, Agriculture-storm runoff, Irrigated Crop production, Nonpoint source 72 Estimated: 2021 TBD
Temperature, Water 2010 Agriculture, Grazing, Other Urban runoff 72 Estimated: 2021 TBD
Turbidity 2010 Agriculture, Grazing, Other Urban runoff 72 Estimated: 2021 TBD
Unknown Toxicity 2010 Agriculture, Grazing, Other Urban runoff 72 Estimated: 2021 TBD
pH 2010 Agriculture, Grazing, Natural sources, Other Urban runoff 72 Estimated: 2021 TBD

Salinas River (upper,confluence of Nacimiento River to Santa Margarita Reservoir)

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Chloride 2002 Agriculture, Pasture grazing- Riparian and/or Upland, Urban Runoff/Storm Sewers 49 Estimated: 2021 TBD
Sodium 2002 Agriculture, Pasture grazing- Riparian and/or Upland, Urban Runoff/Storm Sewers 49 Estimated: 2021 TBD
pH 2010 Agriculture, Pasture grazing- Riparian and/or Upland, Natural Sources, Urban Runoff/Storm Sewers 49 Estimated: 2021 TBD

Quail Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Ammonia (Unionized) 2010 Agriculture, Grazing, Nurseries 4.2 October 13, 2015 Year Round un-ionized ammonia as N must not exceed 0.025mg/L [10]
Chlorpyrifos 2010 Agriculture, Grazing, Nurseries 4.2 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb[7]
Diazinon 2010 Agriculture, Grazing, Nurseries 4.2 October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb [7]
E. Coli 2010 Agriculture, Grazing, Nurseries 402 Estimated: 2013 TBD, See also Fecal Coliform
Fecal Coliform 2010 Agriculture, Grazing, Nurseries 4.2 January 31, 2012 Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.[8]
Low Dissolved Oxygen 2010 Agriculture, Grazing, Nurseries, Removal of Riparian Vegetation 4.2 October 13, 2015 TBD, See also Lower Salinas River Nutrient TMDL
Nitrate 2006 Agriculture, Grazing, Nurseries, Removal of Riparian Vegetation 4.2 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Sediment Toxicity 2010 Agriculture, Grazing, Nurseries 4.2 Estimated: 2013 Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville[15]
Temperature, water 2010 Agriculture, Removal of Riparian Vegetation 4.2 Estimated: 2013 TBD
Turbidity 2010 Agriculture, Grazing, Removal of Riparian Vegetation 4.2 Estimated: 2013 In Development
Unknown Toxicity 2010 Agriculture, Grazing, Nurseries 4.2 Estimated: 2013 TBD

Chualar Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Ammonia (Unionized) 2010 Agriculture, Other Urban Runoff, Removal of Riparian Vegetation 14 October 13, 2015 Year Round un-ionized ammonia as N must not exceed 0.025mg/L [10]
Chlorpyrifos 2010 Agriculture, Other urban runoff 14 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb[7]
Diazinon 2010 Agriculture, Other urban runoff 14 October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Diazinon must not exceed 0.10ppb [7]
E. Coli 2010 Agriculture, Natural Sources, Other urban runoff 14 TBD, See also Fecal Coliform
Fecal Coliform 2010 Agriculture, Natural Sources, Other urban runoff 14 January 31, 2012 Shall not exceed an average of 200 MPN per 100mL, and 10% of samples collected may not exceed 400 MPN per 100mL based on a min of 5 samples in any 30-day period.[8]
Nitrate 2010 Agriculture, Natural Sources, Other urban runoff 14 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Temperature, water 2010 Agriculture, other urban runoff, removal of riparian vegetation 14 Estimated: 2013 TBD
Turbidity 2010 Agriculture, other urban runoff, removal of riparian vegetation 14 Estimated: 2013 TBD
Unknown Toxicity 2010 Agriculture, Urban Runoff/Storm Sewers 14 Estimated: 2013 TBD
pH 2010 Agriculture, Urban Runoff/Storm Sewers 14 Estimated: 2013 TBD

Espinosa Lake

Pollutant First Listed Possible Sources Assessed Area (acres) US EPA TMDL Approval Date TMDL
Chlorpyrifos 2010 Unknown 163 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb[7]
Diazinon 2010 Agriculture October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb [7]

Espinosa Slough

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Ammonia, Unionized 2010 Agriculture 1.4 October 13, 2015 Year Round un-ionized ammonia as N must not exceed 0.025mg/L [10]
Diazinon 2010 Agriculture 1.4 October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb [7]
Nitrate 2010 Agriculture 1.4 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]
Pesticides 1996 Agriculture, Urban runoff/storm sewers 1.4 October 7, 2011 Will be heard at the May 12-13, 2016 Central Coast Water Board hearing in Watsonville, also see Chlorpyrifos & Diazinon[7]
Priority Organics 1996 Nonpoint source 1.4 Estimated: 2013 TBD
Sediment Toxicity 2010 Agriculture 1.4 Estimated: 2013 Will be heard at the May 12-13 2016 Central Coast Water Board hearing in Watsonville[16]
Turbidity 2010 Agriculture 1.4 Estimated: 2013 TBD
Unknown Toxicity 2010 Agriculture 1.4 Estimated: 2013 TBD
pH 2010 Agriculture 1.4 Estimated: 2013 TBD


Esperanza Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Nitrate 2010 Unknown 3.7 October 13, 2015 Dry Season: Nitrate < 1.4 to 6.4 mg/L Wet Season: Nitrate < 8 mg/L, Year Round: Nitrate < 10 mg/L [10]

Arroyo Seco River

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Fecal Coliform 2010 Unknown 43 Estimated: 2021 TBD
Temperature, water 2010 Unknown 43 Estimated 2021 TBD

San Lorenzo Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Boron 2002 Unknown 49 Estimated: 2021 TBD
Chloride 2010 Grazing-Related sources, Natural source, Unknown sources 49 Estimated 2021 TBD
Electrical Conductivity 2010 Natural Sources 49 Estimated 2021 TBD
E. Coli 2010 Grazing Related Sources, Natural Sources 49 Estimated: 2021 TBD, see also Fecal Coliform
Fecal Coliform 2002 Grazing Related sources, Natural Sources November 30, 2011 Geometric mean should not exceed 126/100mL, no sample shoudl exceed the 90% confidence level of 409/100mL [17]
Sodium 2010 Grazing Related sources, Natural Sources 49 Estimated: 2120 TBD
pH 2010 Grazing Related sources, Natural Sources 49 Estimated: 2120 TBD

San Antolio River

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
E. Coli 2010 Natural Sources, Source Unknown 11 November 30, 2011 Must not exceed log mean of 200\100mL, nor shall more than 10% of samples exceed 400/100mL [18]
Fecal Coliform 2010 Natural Sources, Source Unknown 11 November 30, 2011 Must not exceed log mean of 200\100mL, nor shall more than 10% of samples exceed 400/100mL [18]

San Antonio Resevoir

Pollutant First Listed Possible Sources Assessed Area (acres) US EPA TMDL Approval Date TMDL
Mercury 2010 Source Unknown 5417 Estimated: 2021 TBD

Moss Landing Harbor

Pollutant First Listed Possible Sources Assessed Area (acres) US EPA TMDL Approval Date TMDL
Chlorpyrifos 2010 Agriculture, Grazing Related Sources, Other urban runoff 79 October 7, 2011 1-hour average of Chlorpyrifos must not exceed 0.025ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.015ppb[7]
Diazinon 2010 Agriculture October 7, 2011 1-hour average of Diazinon must not exceed 0.16 ppb more than once in a three year period, and 4-day average of Chlorpyriffos must not exceed 0.10ppb [7]
Low Dissolved Oxygen 2010 Source unknown 79 October 13, 2015 See Lower Salinas River Nutrient TMDL
Nickel 2010 Agriculture, Dredging, Marinas and Recreational boating, Natural sources, Other urban runoff, Unknown sources 79 Estimated: 2021 TBD
Pathogens 1992 Agriculture, Boat discharges/vessel wastes, nonpoint source 79 Estimated: 2021 TBD
Pesticides 1992 Agriculture, Irrigated and specialty crop production 79 Estimated: 2021 TBD
Sediment Toxicity 2010 Agriculture, Boatyards, Dredging, Grazing related sources, marinas and recreational boating, Other urban runoff 79 Estimated: 2021 TBD
Sedimentation/Silatation 1996 Agriculture, agriculture-storm runoff, channel erosion, dredging, erosion/siltation, hydromodification, irrigated crop production, nonpoint source 79 Estimated: 2021 TBD
pH 2010 Source Unknown Source unknown 79 Estimated: 2021 TBD

Bennett Slough

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Chlorophyll-a 2010 Source Unknown 1.9 Estimated: 2021 TBD, Also See Lower Salinas TMDL
Low Dissolved Oxygen 2010 Source Unknown 1.9 Estimated: 2021 TBD
pH 2010 Source Unknown 1.9 Estimated: 2021 TBD

Elkhorn Slough

Pollutant First Listed Possible Sources Assessed Area (acres) US EPA TMDL Approval Date TMDL
Low Dissolved Oxygen 2010 Agriculture, Grazing related sources, Natural sources, Urban runoff/storm sewers 2034 Estimated: 2021 TBD
Pesticides 1990 Agriculture return flows, agriculture, agriculture-storm runoff, contaminated sediments, erosion/siltation, irrigated crop production, nonpoint source 2034 Estimated: 2021 TBD
Sedimentation/Siltation 1996 Agriculture, agriculture-storm runoff, channel erosion, irrigated crop production, nonpoint source 2034 Estimated: 2021 TBD
Total Coliform 2010 Source unknown 2034 Estimated: 2021 TBD
pH 2010 Agriculture, grazing related sources, natural sources, urban runoff/storm sewers 2034 Estimated: 2021 TBD

Watsonville Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
E. Coli 2010 Agriculture, Grazing related sources, Natural Sources 5.1 Estimated: 2021 TBD
Fecal Coliform 2010 Agriculture, Grazing related sources, Natural Sources 5.1 Estimated: 2021 TBD
Low Dissolved Oxygen 2010 Agriculture, Grazing related sources, Groundwater loadings, Removal of riparian vegetation 5.1 Estimated: 2021 TBD
Nitrate 2010 Agriculture, Grazing related sources, Groundwater loadings, Removal of riparian vegetation 5.1 Estimated: 2021 TBD
pH 2010 Agriculture, Grazing related sources, Groundwater loadings, Removal of riparian vegetation 5.1 Estimated: 2021 TBD

Carneros Creek

Pollutant First Listed Possible Sources Assessed Area (miles) US EPA TMDL Approval Date TMDL
Ammonia, Unionized 2006 Source Unknown 12 Estimated: 2021 TBD
Chlorophyll-a 2010 Agriculture 12 Estimated: 2021 TBD
Fecal Coliform 2010 Agriculture, natural sources 12 Estimated: 2021 TBD
Low Dissolved Oxygen 2010 Agriculture 12 Estimated: 2021 TBD
Turbidity 2010 Agriculture, Source unknown 12 Estimated: 2021 TBD
pH 2010 Agriculture, Source unknown 12 Estimated: 2021 TBD


  • Boulder Creek
    • Sedimentation/Siltation, Category 5B


  • Branciforte Creek
    • Chlorpyrifos, Category 5A
    • Enterococcus, Category 5A
    • Escherichia coli (E. coli), Category 5A
    • Fecal Coliform, Category 5A
    • Sedimentation/Siltation, Category 5B


  • Carneros Creek
    • Ammonia (Unionized), Category 5A
    • Chlorophyll-a, Category 5A
    • Fecal Coliform, Category 5A
    • Low Dissolved Oxygen, Category 5A
    • Turbidity, Category 5A
    • pH, Category 5A

For more information, go to The Carneros Watershed


  • Elkhorn Slough
    • Low Dissolved Oxygen, Category 5A
    • Pesticides, Category 5A
    • Sedimentation/Siltation, Category 5A
    • Total Coliform, Category 5A
    • pH, Category 5A


  • Gabilan Creek. (Listing, Fact Sheet)
    • Fecal Coliform, Low Priority, Category 5A
    • Nitrate, High Priority, Category 5A
    • pH, Low Priority, Category 5A
    • Turbidity, Low Priority, Category 5A
    • Unknown Toxicity, Low Priority, Category 5A
    • Ammonia, High Priority, Category 5A
    • Sediment toxicity, Low Priority, Category 5A


  • Harkins Slough
    • Chlorophyll-a, Category 5A
    • Low Dissolved Oxygen, Category 5A
    • Pathogens, Category 5B


  • Lompico Creek
    • Nutrients, Category 5B
    • Pathogens, Category 5A
    • Sedimentation/Siltation, Category 5B
  • Moss Landing Harbor
    • Chlorpyrifos, Category 5A
    • Diazinon, Category 5A
    • Low Dissolved Oxygen, Category 5A
    • Nickel, Category 5A
    • Pathogens, Category 5A
    • Pesticides, Category 5A
    • Sediment Toxicity, Category 5A
    • Sedimentation/Siltation, Category 5A
    • pH, Category 5A


  • Natividad Creek
    • Ammonia (Unionized), Category 5A
    • Escherichia coli (E. coli), Category 5A
    • Low Dissolved Oxygen, Category 5A
    • Nitrate, Category 5A
    • Sediment Toxicity, Category 5A
    • Temperature, Category 5A
    • Turbidity, Category 5A
    • Unknown Toxicity, Category 5A
    • pH, Category 5A


  • Pajaro River
    • Boron, Category 5A
    • Chlordane, Category 5A
    • Chloride, Category 5A
    • Chlorpyrifos, Category 5A
    • DDD (Dichlorodiphenyldichloroethane), Category 5A
    • Dieldrin, Category 5A
    • Escherichia coli (E. coli), Category 5A
    • Fecal Coliform, Category 5A
    • Low Dissolved Oxygen, Category 5A
    • Nitrate, Category 5B
    • Nutrients, Category 5B
    • PCBs (Polychlorinated biphenyls), Category 5A
    • Sedimentation/Siltation, Category 5B
    • Sodium, Category 5A
    • Turbidity, Category 5A
    • pH, Category 5A


  • Salinas Reclamation Canal, Lower
    • Ammonia (Unionized), Category 5A
    • Chlorpyrifos, Category 5A
    • Copper, Category 5A
    • Diazinon, Category 5A
    • Escherichia coli (E. coli), Category 5A
    • Fecal Coliform, Category 5A
    • Low Dissolved Oxygen, Category 5A
    • Nitrate, Category 5A
    • Pesticides, Category 5A
    • Priority Organics, Category 5A
    • Sediment Toxicity, Category 5A
    • Turbidity, Category 5A
    • Unknown Toxicity, Category 5A
    • pH, Category 5A


  • Salinas River (lower, estuary to near Gonzales Rd crossing). (Listing, Fact Sheet)
    • Chlordane, Category 5A
    • Chloride, medium priority, Category 5A
    • Chlorpyrifos, high priority, Category 5A
    • DDD (Dichlorodiphenyldichloroethane, Category 5A
    • Diazinon, high priority, Category 5A
    • Dieldrin, Category 5A
    • Electrical Conductivity, low priority, Category 5A
    • Enterococcus, low priority, Category 5A
    • Escherichia coli (E. coli), Category 5A
    • Fecal Coliform, low priority, Category 5A, TMDL in Progress, Report
    • Nitrate, high priority, Category 5A
    • PCBs (Polychlorinated biphenyls), Category 5A
    • Pesticides, Category 5A
    • pH, low priority, Category 5A
    • Sodium, low priority, Category 5A
    • Total Dissolved Solids, low priority, Category 5A
    • Turbidity, low priority, Category 5A
    • Unknown Toxicity, high priority, Category 5A


  • San Lorenzo River
    • Chlordane, Category 5A
    • Chlorpyrifos, Category 5A
    • Nutrients, Category 5B
    • PCBs (Polychlorinated biphenyls), Category 5A
    • Pathogens, Category 5A
    • Sedimentation/Siltation, Category 5B


  • Tembladero Slough. (Listing, Fact Sheet)
    • Fecal Coliform, SWRCB approved, low priority, Category 5A
    • Chlorophyll-a, CCRWQCB approved, low priority, Category 5A
    • Chlorpyrifos, CCRWQCB approved, high priority, Category 5A
    • Diazinon, CCRWQCB approved, high priority, Category 5A
    • Escherichia coli (E. Coli), CCRWQCB approved, low priority, Category 5A
    • Nitrate, CCRWQCB approved,high priority, Category 5A
    • Sediment Toxicity, CCRWQCB approved, low priority, Category 5A
    • Total Coliform, CCRWQCB approved, low priority, Category 5A
    • Turbidity, CCRWQCB approved, low priority, Category 5A
    • Unknown Toxicity, CCRWQCB approved,high priority, Category 5A
    • pH, CCRWQCB approved, low priority, Category 5A
    • Nutrients, CCRWQCB approved, high priority, Category 5A
    • Pesticides, CCRWQCB approved, Category 5A


  • Watsonville Slough. (Listing, Fact Sheet)
    • Pathogens, USEPA approved TMDL, Project Report, low priority, Category 5B
    • Pesticides, TMDL in Progress, Preliminary Project Report, low priority, Category 5A
    • Chlorpyrifos, low priority, Category 5A
    • Diazinon, low priority, Category 5A
    • Total Coliform, low priority, Category 5A
    • Pathogens, low priority, Category 5B
    • Pesticides, low priority, Category 5A
    • Low Dissolved Oxygen, low priority, Category 5A


  • Zayante Creek
    • Chlorpyrifos, Category 5A
    • Fecal Coliform, Category 5A
    • Sedimentation/Siltation, Category 5B

Links

References

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