Difference between revisions of "Monterey Bay Area TMDL Listings - Priorities, Progress, and Documents"
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|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 <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref> | |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 <ref name="Lower Salinas River Nutrient TMDL">[http://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/salinas/nutrients/tmdl_summary.pdf]</ref> | ||
|- | |- | ||
− | |PCBs (Polychlorinated biphenyls) || 2010 || Source Unknown || Estimated: 2013 || TBD | + | |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<ref name="Lower Salinas C&D TMDL"></ref> | |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<ref name="Lower Salinas C&D TMDL"></ref> |
Revision as of 18:35, 31 March 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.
Contents
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 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
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.[7] |
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 [8] |
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[9] |
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 [9] |
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[9] |
Turbidity | 2010 | Agriculture, Removal of riparian vegetation | 15 | Estimated: 2013 | 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[9] |
DDD (Dichlorodiphenyldichloroethane) | 2010 | Source Unknown | 31 | October 7, 2011 | See Diazinon & Chlorpyrifos [9] |
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 [9] |
Dieldrin | 2010 | Source Unknown | 31 | October 7, 2011 | See Diazinon & Chlorpyrifos [9] |
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.[7] |
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[9] |
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 |
- 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
- Chualar Creek
- Ammonia (Unionized), Category 5A
- Chlorpyrifos, Category 5A
- Diazinon, Category 5A
- Escherichia coli (E. coli), Category 5A
- Fecal Coliform, Category 5A
- Nitrate, Category 5A
- Temperature, Category 5A
- Turbidity, Category 5A
- Unknown Toxicity, Category 5A
- pH, Category 5A
- 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
- 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
- Old Salinas River Estuary
- Nutrients, Category 5A
- Pesticides, 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
- Quail Creek
- Ammonia (Unionized), Category 5A
- Chlorpyrifos, Category 5A
- Diazinon, Category 5A
- Escherichia coli (E. coli), Category 5A
- Fecal Coliform, Category 5A
- Low Dissolved Oxygen, Category 5A
- Nitrate, Category 5A
- Sediment Toxicity, Category 5A
- Temperature, Category 5A
- Turbidity, Category 5A
- Unknown Toxicity, 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
- TMDLs in the Monterey Bay Region of California
- The 303d list of Impaired Waterbodies in the Monterey Bay Region
- TMDL
- Monterey Bay Region
References
</references>
Disclaimer
This page may contain student work completed as part of assigned coursework. It may not be accurate. It does not necessary reflect the opinion or policy of CSUMB, its staff, or students.
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