Regional Board 3 - Central Coast Region CATEGORY 5 Draft 2008 California 305(b)/303(d) Integrated Report
2008 CALIFORNIA 303(d) LIST OF WATER QUALITY LIMITED SEGMENTS*
 
 REGION  WATER BODY NAME WATER TYPE WATERSHED*
CALWATER / USGS HUC
  • POLLUTANT
    • POTENTIAL SOURCES
  • Relevant Notes
ESTIMATED AREA ASSESSED FIRST YEAR LISTED TMDL REQUIREMENT STATUS**  DATE***

3

Alamo Creek

River & Stream

31230071  /  18060007
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

7.8 Miles

2002

5A

2021


3

Alisal Creek (Monterey County)

River & Stream

30970093  /  18060011
  • Chlorophyll-a
    • Agriculture

16 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Nonpoint Source
    • Urban Runoff/Storm Sewers

16 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Nonpoint Source
    • Urban Runoff/Storm Sewers

16 Miles

2002

5A

2013
  • Sodium
    • Agriculture
    • Nonpoint Source
    • Urban Runoff/Storm Sewers

16 Miles

2008

5A

2018


3

Alisal Slough (Monterey County)

River & Stream

30911010  /  18060011
  • Low Dissolved Oxygen
    • Agriculture

7.3 Miles

2008

5A

2013
  • Nitrate
    • Agriculture

7.3 Miles

2008

5A

2013
  • Sediment Toxicity
    • Agriculture

7.3 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture

7.3 Miles

2008

5A

2013


3

Aptos Creek

River & Stream

30413023  /  18060001
  • Pathogens
    • Collection System Failure
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland
    • Urban Runoff/Storm Sewers

8.4 Miles

1990

5A

2011
  • Impaired length for Fecal Coliform is below Bridge Creek to the mouth (approximately 5 miles).
  • Sedimentation/Siltation
    • Channel Erosion
    • Disturbed Sites (Land Develop.)

8.4 Miles

1990

5A

2021


3

Arana Gulch

River & Stream

30412051  /  18060001
  • Chlorpyrifos
    • Other Urban Runoff
    • Unknown Nonpoint Source

4.9 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Source Unknown

4.9 Miles

2008

5A

2021
  • Fecal Coliform
    • Source Unknown

4.9 Miles

2008

5A

2021


3

Arroyo Burro Creek

River & Stream

31532010  /  18060013
  • Escherichia coli (E. Coli)
    • Golf course activities
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.1 Miles

2008

5A

2013
  • Fecal Coliform
    • Golf course activities
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.1 Miles

2008

5A

2013


3

Arroyo De La Cruz

River & Stream

31012013  /  18060006
  • Escherichia coli (E. Coli)
    • Grazing-Related Sources
    • Natural Sources

11 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Grazing-Related Sources
    • Natural Sources

11 Miles

2008

5A

2021


3

Arroyo Grande Creek (below Lopez Lake)

River & Stream

31031020  /  18060006
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

13 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

13 Miles

2008

5A

2021


3

Arroyo Paredon

River & Stream

31534010  /  18060013
  • Boron
    • Source Unknown

5.2 Miles

2006

5A

2021
  • Chloride
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

5.2 Miles

2008

5A

2021
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

5.2 Miles

2008

5A

2021
  • Fecal Coliform
    • Source Unknown

5.2 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Groundwater Loadings
    • Removal of Riparian Vegetation
    • Urban Runoff/Storm Sewers

5.2 Miles


5A

2021
  • Sodium
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

5.2 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

5.2 Miles


5A

2021


3

Arroyo Seco River

River & Stream

30960032  /  18060005
  • Fecal Coliform
    • Source Unknown

43 Miles

2008

5A

2021
  • Temperature, water
    • Source Unknown

43 Miles

2008

5A

2021


3

Atascadero Creek (San Luis Obispo County)

River & Stream

30981124  /  18060005
  • Escherichia coli (E. Coli)
    • Source Unknown

5.4 Miles

2008

5A

2021
  • Fecal Coliform
    • Source Unknown

5.4 Miles

2002

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

5.4 Miles

2002

5A

2021


3

Atascadero Creek (Santa Barbara county)

River & Stream

31531011  /  18060013
  • Chloride
    • Agriculture
    • Confined Animal Feeding Operations (NPS)
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2008

5A

2021
  • Enterococcus
    • Agriculture
    • Confined Animal Feeding Operations (NPS)
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Confined Animal Feeding Operations (NPS)
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Confined Animal Feeding Operations (NPS)
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2008

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Confined Animal Feeding Operations (NPS)
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2008

5A

2021
  • Sodium
    • Agriculture
    • Confined Animal Feeding Operations (NPS)
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2008

5A

2021
  • Temperature, water
    • Agriculture
    • Confined Animal Feeding Operations (NPS)
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Confined Animal Feeding Operations (NPS)
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2008

5A

2021


3

Beach Road Ditch

River & Stream

30510030  /  18060002
  • Low Dissolved Oxygen
    • Agriculture
    • Removal of Riparian Vegetation

0.78 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Removal of Riparian Vegetation

0.78 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Removal of Riparian Vegetation

0.78 Miles

2008

5A

2021
  • pH
    • Agriculture

0.78 Miles

2008

5A

2021


3

Bell Creek (Santa Barbara Co)

River & Stream

31510013  /  18060013
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

1.1 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Urban Runoff/Storm Sewers

1.1 Miles


5A

2021
  • Unknown Toxicity
    • Agriculture
    • Source Unknown

1.1 Miles

2008

5A

2021


3

Bennett Slough

River & Stream

30600014  /  18060011
  • Chlorophyll-a
    • Source Unknown

1.9 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

1.9 Miles

2008

5A

2021
  • pH
    • Source Unknown

1.9 Miles

2008

5A

2021


3

Blanco Drain

River & Stream

30911010  /  18060011
  • Chlorpyrifos
    • Agriculture

15 Miles

2008

5A

2013
  • Diazinon
    • Agriculture

15 Miles

2008

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Groundwater Loadings

15 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Groundwater Loadings

15 Miles

2008

5A

2013
  • Pesticides
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Irrigated Crop Production
    • Nonpoint Source

15 Miles

1998

5A

2013
  • Turbidity
    • Agriculture
    • Removal of Riparian Vegetation

15 Miles

2008

5A

2013


3

Blosser Channel

River & Stream

31210030  /  18060008
  • Ammonia (Unionized)
    • Agriculture
    • Groundwater Withdrawal
    • Intensive Animal Feeding Operations
    • Urban Runoff/Storm Sewers

0.02 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Groundwater Withdrawal
    • Intensive Animal Feeding Operations
    • Natural Sources
    • Urban Runoff/Storm Sewers

0.02 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

0.02 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Groundwater Withdrawal
    • Intensive Animal Feeding Operations
    • Urban Runoff/Storm Sewers

0.02 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Groundwater Withdrawal
    • Urban Runoff/Storm Sewers

0.02 Miles

2008

5A

2013


3

Bradley Canyon Creek

River & Stream

31210030  /  18060008
  • Ammonia (Unionized)
    • Agriculture

17 Miles

2006

5A

2013
  • Fecal Coliform
    • Agriculture
    • Natural Sources

17 Miles

2002

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Removal of Riparian Vegetation

17 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Removal of Riparian Vegetation

17 Miles


5A

2013
  • Turbidity
    • Agriculture

17 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture

17 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Urban Runoff/Storm Sewers

17 Miles

2008

5A

2013


3

Bradley Channel

River & Stream

31210030  /  18060008
  • Ammonia (Unionized)
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2008

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles


5A

2013
  • Sediment Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2008

5A

2013


3

Branciforte Creek

River & Stream

30412051  /  18060001
  • Chlorpyrifos
    • Source Unknown

5.8 Miles

2008

5A

2021
  • Enterococcus
    • Source Unknown

5.8 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Source Unknown

5.8 Miles

2008

5A

2021
  • Fecal Coliform
    • Source Unknown

5.8 Miles

2008

5A

2011
  • Sedimentation/Siltation
    • Nonpoint Source
    • Road Construction
    • Silviculture

5.8 Miles

2002

5B

2004


3

Canada De La Gaviota

River & Stream

31510031  /  18060013
  • Boron
    • Grazing-Related Sources
    • Highway/Road/Bridge Runoff
    • Natural Sources

7 Miles

2006

5A

2021
  • Chloride
    • Grazing-Related Sources
    • Highway/Road/Bridge Runoff
    • Natural Sources

7 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Grazing-Related Sources
    • Highway/Road/Bridge Runoff
    • Natural Sources

7 Miles

2008

5A

2021
  • Fecal Coliform
    • Grazing-Related Sources
    • Highway/Road/Bridge Runoff
    • Natural Sources

7 Miles

2008

5A

2021
  • Sodium
    • Grazing-Related Sources
    • Highway/Road/Bridge Runoff
    • Natural Sources

7 Miles

2008

5A

2021


3

Canada Del Refugio

River & Stream

31510022  /  18060013
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

6.8 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

6.8 Miles

2008

5A

2013
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

6.8 Miles

2008

5A

2021


3

Carbonera Creek

River & Stream

30412050  /  18060001
  • Nutrients
    • Natural Sources
    • Nonpoint Source
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland

10 Miles

1992

5B

2003
  • Pathogens
    • Nonpoint Source
    • Urban Runoff/Storm Sewers

10 Miles

1990

5A

2011
  • Sedimentation/Siltation
    • Construction/Land Development
    • Nonpoint Source

10 Miles

1990

5B

2003


3

Carnadero Creek

River & Stream

30530020  /  18060002
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources
    • Urban Runoff/Storm Sewers

1.8 Miles

2008

5A

2011
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Urban Runoff/Storm Sewers

1.8 Miles

2008

5A

2011
  • Low Dissolved Oxygen
    • Agriculture
    • Urban Runoff/Storm Sewers

1.8 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Urban Runoff/Storm Sewers

1.8 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Urban Runoff/Storm Sewers

1.8 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Urban Runoff/Storm Sewers

1.8 Miles

2008

5A

2021


3

Carneros Creek (Monterey County)

River & Stream

30600010  /  18060011
  • Ammonia (Unionized)
    • Source Unknown

12 Miles


5A

2021
  • Chlorophyll-a
    • Agriculture

12 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Natural Sources

12 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Agriculture

12 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Source Unknown

12 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Source Unknown

12 Miles

2008

5A

2021


3

Carpinteria Creek

River & Stream

31534020  /  18060013
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

5.8 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.8 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.8 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Agriculture
    • Urban Runoff/Storm Sewers

5.8 Miles

2008

5A

2021
  • Sodium
    • Agriculture
    • Urban Runoff/Storm Sewers

5.8 Miles

2008

5A

2021


3

Carpinteria Marsh (El Estero Marsh)

Estuary

31534020  /  18060013
  • Nutrients
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

188 Acres

1994

5A

2021
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

188 Acres

1994

5A

2021
  • Priority Organics
    • Agriculture
    • Urban Runoff/Storm Sewers

188 Acres

1992

5A

2021


3

Casmalia Canyon Creek

River & Stream

31300040  /  18060009
  • Sedimentation/Siltation
    • Source Unknown

5 Miles

2006

5A

2021


3

Cholame Creek

River & Stream

31700053  /  1.806e+0
  • Boron
    • Grazing-Related Sources
    • Natural Sources
    • Source Unknown

8.7 Miles

2002

5A

2021
  • Chloride
    • Grazing-Related Sources
    • Natural Sources

8.7 Miles

2008

5A

2021
  • Electrical Conductivity
    • Grazing-Related Sources
    • Natural Sources

8.7 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Grazing-Related Sources
    • Natural Sources

8.7 Miles

2008

5A

2021
  • Fecal Coliform
    • Grazing-Related Sources
    • Natural Sources

8.7 Miles

2002

5A

2021
  • Low Dissolved Oxygen
    • Grazing-Related Sources
    • Natural Sources

8.7 Miles

2008

5A

2021
  • Sodium
    • Grazing-Related Sources
    • Natural Sources

8.7 Miles

2008

5A

2021


3

Chualar Creek

River & Stream

30919000  /  18060011
  • Ammonia (Unionized)
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation

14 Miles

2008

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Other Urban Runoff

14 Miles

2008

5A

2013
  • Diazinon
    • Agriculture
    • Other Urban Runoff

14 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources
    • Other Urban Runoff

14 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Other Urban Runoff

14 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation

14 Miles

2008

5A

2013
  • Temperature, water
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation

14 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation

14 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Other Urban Runoff

14 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2008

5A

2013


3

Chumash Creek

River & Stream

31022011  /  18060006
  • Fecal Coliform
    • Source Unknown

2.1 Miles

2002

5A

2021
  • For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


3

Cieneguitas Creek

River & Stream

31531011  /  18060013
  • Enterococcus
    • Natural Sources
    • Pasture Grazing-Upland
    • Urban Runoff/Storm Sewers

3.1 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

3.1 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

3.1 Miles

2008

5A

2021
  • Temperature, water
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

3.1 Miles

2008

5A

2021


3

Corcoran Lagoon

Wetland, Freshwater

 / 
  • Total Coliform
    • Source Unknown


2008

5A

2021
  • pH
    • Source Unknown


2008

5A

2021


3

Corralitos Creek

River & Stream

30510010  /  18060002
  • Escherichia coli (E. Coli)
    • Collection System Failure
    • Combined Sewer Overflow
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland
    • Transient encampments
    • Urban Runoff/Storm Sewers

13 Miles

2008

5A

2011
  • Fecal Coliform
    • Collection System Failure
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland
    • Transient encampments
    • Urban Runoff/Storm Sewers

13 Miles

2002

5A

2011
  • Turbidity
    • Agriculture
    • Silviculture
    • Urban Runoff/Storm Sewers

13 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Natural Sources
    • Urban Runoff/Storm Sewers

13 Miles

2008

5A

2021


3

Cuyama River (above Twitchell Reservior)

River & Stream

31230060  /  18060007
  • Boron
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction

80 Miles

2008

5A

2021
  • The impaired length is between the Highway 166 Bridge at Cottonwood Creek and the the Highway 33 Bridge.
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction

80 Miles

2008

5A

2021
  • The impaired length is between Twitchell Reservoir and the Highway 33 Bridge.
  • Electrical Conductivity
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction

80 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

80 Miles

2008

5A

2021
  • The impaired length is between Twitchel Reservoir and the Highway 33 Bridge.
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction

80 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction

80 Miles

2008

5A

2021


3

Devereux Creek

River & Stream

31531020  /  18060013
  • Fecal Coliform
    • Golf course activities
    • Natural Sources
    • Urban Runoff/Storm Sewers

1.2 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Golf course activities
    • Natural Sources
    • Urban Runoff/Storm Sewers

1.2 Miles

2008

5A

2021


3

Dos Pueblos Canyon Creek

River & Stream

31510011  /  18060013
  • Sodium
    • Source Unknown

6.9 Miles

2008

5A

2021


3

Elkhorn Slough

Estuary

30600014  /  18060011
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

2034 Acres

2008

5A

2021
  • Pesticides
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-storm runoff
    • Contaminated Sediments
    • Erosion/Siltation
    • Irrigated Crop Production
    • Nonpoint Source

2034 Acres

1990

5A

2021
  • Sedimentation/Siltation
    • Agriculture
    • Agriculture-storm runoff
    • Channel Erosion
    • Irrigated Crop Production
    • Nonpoint Source

2034 Acres

1996

5A

2021
  • Total Coliform
    • Source Unknown

2034 Acres

2008

5A

2021
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

2034 Acres

2008

5A

2021


3

Esperanza Creek

River & Stream

 /  18060011
  • Nitrate
    • Source Unknown

3.7 Miles

2008

5A

2013


3

Espinosa Lake

Lake & Reservoir

30919000  /  18060011
  • Chlorpyrifos
    • Source Unknown

163 Acres

2008

5A

2013
  • Diazinon
    • Agriculture

163 Acres

2008

5A

2013


3

Espinosa Slough

River & Stream

30911010  /  18060011
  • Ammonia (Unionized)
    • Agriculture

1.4 Miles

2008

5A

2013
  • Diazinon
    • Agriculture

1.4 Miles

2008

5A

2013
  • Nitrate
    • Agriculture

1.4 Miles

2008

5A

2013
  • Pesticides
    • Agriculture
    • Urban Runoff/Storm Sewers

1.4 Miles

1996

5A

2013
  • Priority Organics
    • Nonpoint Source

1.4 Miles

1996

5A

2013
  • Sediment Toxicity
    • Agriculture

1.4 Miles

2008

5A

2013
  • Turbidity
    • Agriculture

1.4 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture

1.4 Miles

2008

5A

2013
  • pH
    • Agriculture

1.4 Miles

2008

5A

2013


3

Estrella River

River & Stream

31700071  /  18060004
  • Boron
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

28 Miles

2008

5A

2021
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

28 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

28 Miles

2008

5A

2021
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

28 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

28 Miles

2008

5A

2021


3

Franklin Creek (Santa Barbara County)

River & Stream

31534020  /  18060013
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

2.8 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources
    • Urban Runoff/Storm Sewers

2.8 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Urban Runoff/Storm Sewers

2.8 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

2.8 Miles


5A

2021
  • Sodium
    • Agriculture
    • Groundwater Loadings
    • Natural Sources
    • Urban Runoff/Storm Sewers

2.8 Miles

2008

5A

2021
  • pH
    • Source Unknown

2.8 Miles

2008

5A

2021


3

Furlong Creek

River & Stream

30530020  /  18060002
  • Chlorpyrifos
    • Agriculture

8.5 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources

8.5 Miles

2008

5A

2011
  • Fecal Coliform
    • Agriculture
    • Natural Sources

8.5 Miles

2008

5A

2011
  • Nitrate
    • Agriculture

8.5 Miles

2008

5A

2021
  • Turbidity
    • Agriculture

8.5 Miles

2008

5A

2021


3

Gabilan Creek

River & Stream

30919000  /  18060005
  • Ammonia (Unionized)
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

6.4 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

6.4 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

6.4 Miles


5A

2013
  • Sediment Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

6.4 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

6.4 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

6.4 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

6.4 Miles

2008

5A

2013


3

Glen Annie Canyon

River & Stream

31531020  /  18060013
  • Chloride
    • Agriculture
    • Golf course activities
    • Grazing-Related Sources
    • Other Urban Runoff

5.7 Miles

2008

5A

2021
  • Enterococcus
    • Agriculture
    • Golf course activities
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

5.7 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Golf course activities
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

5.7 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Golf course activities
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

5.7 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Golf course activities
    • Grazing-Related Sources
    • Other Urban Runoff

5.7 Miles


5A

2021
  • Sodium
    • Agriculture
    • Golf course activities
    • Grazing-Related Sources
    • Other Urban Runoff

5.7 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture
    • Golf course activities
    • Grazing-Related Sources

5.7 Miles

2008

5A

2021


3

Goleta Slough/Estuary

Estuary

31531020  /  18060013
  • Pathogens
    • Natural Sources
    • Source Unknown
    • Urban Runoff/Storm Sewers

196 Acres

1990

5A

2013
  • Priority Organics
    • Nonpoint Source

196 Acres

1990

5A

2021


3

Greene Valley Creek (Santa Barbara County)

River & Stream

31210030  /  18060008
  • Ammonia (Unionized)
    • Agriculture
    • Removal of Riparian Vegetation
    • Unknown Nonpoint Source

3.9 Miles

2008

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Unknown Nonpoint Source

3.9 Miles

2008

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Removal of Riparian Vegetation
    • Unknown Nonpoint Source

3.9 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Removal of Riparian Vegetation
    • Unknown Nonpoint Source

3.9 Miles

2008

5A

2013
  • Temperature, water
    • Agriculture
    • Removal of Riparian Vegetation
    • Unknown Nonpoint Source

3.9 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Removal of Riparian Vegetation

3.9 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Unknown Nonpoint Source

3.9 Miles

2008

5A

2013


3

Harkins Slough

River & Stream

30510013  /  18060002
  • Chlorophyll-a
    • Source Unknown

7.3 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

7.3 Miles

2008

5A

2021
  • Pathogens
    • Source Unknown

7.3 Miles

2008

5B

2007


3

Jalama Creek

River & Stream

31510051  /  18060013
  • Chloride
    • Grazing-Related Sources
    • Natural Sources

10 Miles

2008

5A

2021
  • Sodium
    • Grazing-Related Sources
    • Natural Sources

10 Miles

2008

5A

2021


3

Las Tablas Creek

River & Stream

30981293  /  18060005
  • Metals
    • Surface Mining

5.7 Miles

1990

5A

2021


3

Las Tablas Creek, North Fork

River & Stream

30981290  /  18060005
  • Metals
    • Surface Mining

6.5 Miles

1990

5A

2021


3

Las Tablas Creek, South Fork

River & Stream

30981290  /  18060006
  • Metals
    • Surface Mining

4.7 Miles

1990

5A

2021


3

Little Oso Flaco Creek

River & Stream

31210030  /  18060008
  • Fecal Coliform
    • Source Unknown

1.8 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Groundwater Loadings

1.8 Miles

2008

5A

2013
  • Sediment Toxicity
    • Agriculture

1.8 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture

1.8 Miles

2008

5A

2013


3

Llagas Creek (above Chesbro Reservoir)

River & Stream

30520014  /  18060002
  • Temperature, water
    • Source Unknown

9.4 Miles

2008

5A

2021
  • pH
    • Source Unknown

9.4 Miles

2008

5A

2021


3

Llagas Creek (below Chesbro Reservoir)

River & Stream

30530020  /  18060002
  • Chloride
    • Nonpoint Source
    • Point Source

16 Miles

2002

5A

2021
  • Impaired section for Chlorides is located downstream of confluence with Miller Slough (approximately 1 mile of stream near Southside Drive).
  • Chlorpyrifos
    • Agriculture
    • Source Unknown

16 Miles

2008

5A

2021
  • Electrical Conductivity
    • Source Unknown

16 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Source Unknown

16 Miles

2008

5A

2011
  • Fecal Coliform
    • Natural Sources
    • Nonpoint Source
    • Pasture Grazing-Riparian and/or Upland

16 Miles

2002

5A

2011
  • Impaired section for Fecal Coliform is located between the confluence with Church Creek and the confluence with Pajaro River (approximately 9.5 miles of stream length).
  • Low Dissolved Oxygen
    • Agricultural Return Flows
    • Habitat Modification
    • Irrigated Crop Production
    • Municipal Point Sources

16 Miles

2002

5A

2021
  • This listing was made by USEPA.
  • Nutrients
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Habitat Modification
    • Irrigated Crop Production
    • Municipal Point Sources
    • Nonpoint Source
    • Pasture Grazing-Riparian and/or Upland
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

16 Miles

1996

5B

2006
  • Nutrients Medium 16 Impaired section for Nutrients is located between the confluence with Church Creek and the confluence with Pajaro River (approximately 9.5 miles of stream length).
  • Sedimentation/Siltation
    • Agriculture
    • Habitat Modification
    • Hydromodification

16 Miles

1996

5B

2007
  • Impaired section for Sediment/Siltation is located between the confluence with Church Creek and the confluence with Pajaro River (approximately 9.5 miles of stream length).
  • Sodium
    • Nonpoint Source
    • Source Unknown

16 Miles

2002

5A

2021
  • Impaired section for Sodium is located downstream of confluence with Miller Slough (approximately 1 mile of stream near Southside Drive).
  • Total Dissolved Solids
    • Nonpoint Source
    • Point Source

16 Miles

2002

5A

2021
  • Impaired section for Total Dissolved Solids is located between the confluence with Church Creek and the confluence with Pajaro River (approximately 9.5 miles of stream length).
  • Turbidity
    • Source Unknown

16 Miles

2008

5A

2021


3

Lockhart Gulch

River & Stream

30412041  /  18060001
  • Low Dissolved Oxygen
    • Source Unknown

2.7 Miles

2008

5A

2021
  • pH
    • Source Unknown

2.7 Miles

2008

5A

2021


3

Lompico Creek

River & Stream

30412040  /  18060001
  • Nutrients
    • Natural Sources
    • Nonpoint Source
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland

4.5 Miles

1994

5B

2003
  • Pathogens
    • Natural Sources
    • Nonpoint Source
    • Onsite Wastewater Systems (Septic Tanks)

4.5 Miles

1994

5A

2011
  • Sedimentation/Siltation
    • Construction/Land Development
    • Natural Sources

4.5 Miles

1990

5B

2004


3

Los Berros Creek

River & Stream

31031023  /  18060008
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Source Unknown

13 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Source Unknown

13 Miles

2008

5A

2021
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Source Unknown

13 Miles

2008

5A

2021


3

Los Carneros Creek

River & Stream

31531020  /  18060013
  • Electrical Conductivity
    • Source Unknown

5.6 Miles

2008

5A

2021
  • Enterococcus
    • Source Unknown

5.6 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Source Unknown

5.6 Miles

2008

5A

2013
  • Nitrate
    • Source Unknown

5.6 Miles

2008

5A

2021
  • pH
    • Source Unknown

5.6 Miles

2008

5A

2021


3

Los Osos Creek

River & Stream

31023012  /  1.806e+0
  • Fecal Coliform
    • Source Unknown

4.1 Miles

2002

5B

2004
  • Low Dissolved Oxygen
    • Agriculture
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Urban Runoff/Storm Sewers

4.1 Miles

2002

5A

2021
  • This listing was made by USEPA.
  • Nitrate
    • Source Unknown

4.1 Miles

2006

5B

2005
  • Impaired Length is below Los Osos Valley Road to Creek Mouth. There is no evidence of impairment at Los Osos Valley Road.
  • Nutrients
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

4.1 Miles

1998

5B

2005
  • Impaired Length is below Los Osos Valley Road to Creek Mouth. There is no evidence of impairment at Los Osos Valley Road.
  • Sedimentation/Siltation
    • Agriculture
    • Agriculture-storm runoff
    • Channel Erosion
    • Channelization
    • Dredging
    • Erosion/Siltation
    • Habitat Modification
    • Hydromodification
    • Irrigated Crop Production
    • Natural Sources
    • Nonpoint Source
    • Range Grazing-Riparian and/or Upland
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

4.1 Miles

1992

5B

2004


3

Love Creek

River & Stream

30412021  /  1.806e+0
  • Sedimentation/Siltation
    • Agriculture
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Nonpoint Source
    • Road Construction
    • Silviculture

3.8 Miles

2002

5A

2021


3

Main Street Canal

River & Stream

31210030  /  18060008
  • Ammonia (Unionized)
    • Agriculture
    • Illegal dumping
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Source Unknown

5.1 Miles

2006

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

5.1 Miles

2008

5A

2013
  • Diazinon
    • Agriculture
    • Other Urban Runoff

5.1 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Source Unknown

5.1 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Nonpoint Source
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Urban Runoff/Storm Sewers

5.1 Miles

2002

5A

2013
  • Turbidity
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Source Unknown

5.1 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Source Unknown

5.1 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation

5.1 Miles

2008

5A

2013


3

Majors Creek (Monterey County)

River & Stream

30950042  /  18060012
  • Copper
    • Source Unknown
    • Urban Runoff/Storm Sewers

1 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Natural Sources
    • Source Unknown
    • Urban Runoff/Storm Sewers

1 Miles

2008

5A

2021
  • Lead
    • Source Unknown
    • Urban Runoff/Storm Sewers

1 Miles

2008

5A

2021
  • Zinc
    • Source Unknown
    • Urban Runoff/Storm Sewers

1 Miles

2008

5A

2021


3

Maria Ygnacio Creek

River & Stream

31531020  /  18060013
  • Enterococcus
    • Source Unknown

7 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Source Unknown

7 Miles

2008

5A

2013
  • Fecal Coliform
    • Source Unknown

7 Miles

2008

5A

2013
  • Sodium
    • Source Unknown

7 Miles

2008

5A

2021
  • pH
    • Source Unknown

7 Miles

2008

5A

2021


3

McEnery Spring

Wetland, Freshwater

 / 
  • pH
    • Source Unknown


2008

5A

2021


3

McGowan Ditch

River & Stream

 / 
  • Nitrate
    • Source Unknown


2008

5A

2021


3

Merrit Ditch

River & Stream

30911010  /  18060011
  • Ammonia (Unionized)
    • Agriculture
    • Channelization
    • Removal of Riparian Vegetation
    • Source Unknown

0.44 Miles

2008

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Channelization
    • Removal of Riparian Vegetation

0.44 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Channelization
    • Removal of Riparian Vegetation

0.44 Miles

2008

5A

2013
  • Sediment Toxicity
    • Agriculture
    • Channelization
    • Removal of Riparian Vegetation
    • Source Unknown

0.44 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Channelization
    • Removal of Riparian Vegetation

0.44 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture

0.44 Miles

2008

5A

2013


3

Millers Canal

River & Stream

30530020  /  18060002
  • Chlorophyll-a
    • Agriculture
    • Channelization
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

2.1 Miles

2008

5A

2021
  • Chlorpyrifos
    • Agriculture
    • Channelization
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

2.1 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Channelization
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

2.1 Miles

2008

5A

2011
  • Fecal Coliform
    • Agriculture
    • Channelization
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

2.1 Miles

2008

5A

2011
  • Low Dissolved Oxygen
    • Agriculture
    • Channelization
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

2.1 Miles

2008

5A

2021
  • Temperature, water
    • Agriculture
    • Channelization
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

2.1 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Channelization
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

2.1 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Channelization
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

2.1 Miles

2008

5A

2021


3

Mission Creek (Santa Barbara County)

River & Stream

31532011  /  18060013
  • Escherichia coli (E. Coli)
    • Habitat Modification
    • Hydromodification
    • Transient encampments
    • Urban Runoff/Storm Sewers

8.6 Miles

2008

5A

2013
  • Fecal Coliform
    • Habitat Modification
    • Hydromodification
    • Transient encampments
    • Urban Runoff/Storm Sewers

8.6 Miles


5A

2013
  • Low Dissolved Oxygen
    • Habitat Modification
    • Hydromodification
    • Removal of Riparian Vegetation
    • Source Unknown

8.6 Miles

2008

5A

2021
  • Unknown Toxicity
    • Urban Runoff/Storm Sewers

8.6 Miles

1994

5A

2021


3

Monterey Harbor

Bay & Harbor

30950042  /  18060012
  • Metals
    • Railroad Slag Pile

76 Acres

1998

5A

2021
  • Sediment Toxicity
    • Source Unknown

76 Acres


5A

2021


3

Moore Creek

River & Stream

30411031  /  18060001
  • Electrical Conductivity
    • Source Unknown

1.5 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Source Unknown

1.5 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

1.5 Miles

2008

5A

2021
  • pH
    • Source Unknown

1.5 Miles

2008

5A

2021


3

Moro Cojo Slough

Estuary

30913011  /  18060011
  • Ammonia (Unionized)
    • Agriculture
    • Boat Discharges/Vessel Wastes
    • Grazing-Related Sources
    • Source Unknown

62 Acres

2006

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Boat Discharges/Vessel Wastes
    • Grazing-Related Sources
    • Natural Sources
    • Source Unknown

62 Acres

2008

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

62 Acres

2002

5A

2021
  • Pesticides
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Source Unknown

62 Acres

2002

5A

2021
  • Sedimentation/Siltation
    • Agriculture
    • Construction/Land Development
    • Nonpoint Source

62 Acres

2002

5A

2021
  • Total Coliform
    • Source Unknown

62 Acres

2008

5A

2021
  • pH
    • Agriculture
    • Boat Discharges/Vessel Wastes
    • Grazing-Related Sources
    • Natural Sources
    • Removal of Riparian Vegetation
    • Source Unknown

62 Acres

2008

5A

2021


3

Morro Bay

Bay & Harbor

31022012  /  18060006
  • Oxygen, Dissolved
    • Source Unknown

1922 Acres

2006

5A

2021
  • Pathogens
    • Natural Sources
    • Nonpoint Source
    • Range Grazing-Upland
    • Septage Disposal
    • Urban Runoff/Storm Sewers

1922 Acres

1992

5B

2004
  • Sedimentation/Siltation
    • Agriculture
    • Channel Erosion
    • Channelization
    • Construction/Land Development
    • Irrigated Crop Production
    • Resource Extraction

1922 Acres

1994

5B

2004


3

Moss Landing Harbor

Bay & Harbor

30600014  /  18060011
  • Chlorpyrifos
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

79 Acres

2008

5A

2021
  • Diazinon
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

79 Acres

2008

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

79 Acres

2008

5A

2021
  • Nickel
    • Agriculture
    • Dredging
    • Marinas and Recreational Boating
    • Natural Sources
    • Other Urban Runoff
    • Source Unknown

79 Acres

2008

5A

2021
  • Pathogens
    • Agriculture
    • Boat Discharges/Vessel Wastes
    • Nonpoint Source

79 Acres

1992

5A

2021
  • Pesticides
    • Agriculture
    • Irrigated Crop Production
    • Specialty Crop Production

79 Acres

1990

5A

2021
  • Sedimentation/Siltation
    • Agriculture
    • Agriculture-storm runoff
    • Channel Erosion
    • Dredging
    • Erosion/Siltation
    • Hydromodification
    • Irrigated Crop Production
    • Nonpoint Source

79 Acres

1996

5A

2021
  • Unknown Toxicity
    • Agriculture
    • Boatyards
    • Dredging
    • Grazing-Related Sources
    • Marinas and Recreational Boating
    • Other Urban Runoff

79 Acres

2008

5A

2021
  • pH
    • Source Unknown

79 Acres

2008

5A

2021


3

Mountain Charlie Gulch

River & Stream

30412040  /  1.806e+0
  • Sedimentation/Siltation
    • Erosion/Siltation
    • Nonpoint Source
    • Road Construction
    • Silviculture

3.9 Miles

2002

5A

2021


3

Nacimiento Reservoir

Lake & Reservoir

30982000  /  18060005
  • Mercury
    • Surface Mining

5736 Acres

2008

5A

2021
  • Metals
    • Natural Sources
    • Surface Mining

5736 Acres

1992

5A

2021


3

Natividad Creek

River & Stream

30911010  /  18060011
  • Ammonia (Unionized)
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

7 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

7 Miles

2008

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

7 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

7 Miles


5A

2013
  • Sediment Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

7 Miles

2008

5A

2013
  • Temperature, water
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

7 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

7 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

7 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

7 Miles

2008

5A

2013


3

Newell Creek (Lower)

River & Stream

30412031  /  18060001
  • pH
    • Source Unknown

1.8 Miles

2008

5A

2021


3

Newell Creek (Upper)

River & Stream

30412031  /  1.806e+0
  • Sedimentation/Siltation
    • Agriculture
    • Channel Erosion
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Nonpoint Source
    • Road Construction
    • Silviculture

3.5 Miles

2002

5A

2021


3

Nipomo Creek

River & Stream

31210011  /  18060008
  • Fecal Coliform
    • Agriculture
    • Collection System Failure
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

9.3 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

9.3 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

9.3 Miles

2008

5A

2013


3

Nobel Gulch Creek

River & Stream

30413014  /  18060001
  • Escherichia coli (E. Coli)
    • Source Unknown

2.2 Miles

2008

5A

2011


3

North Main Street Channel

River & Stream

31210030  /  18060008
  • Nitrate
    • Source Unknown

0.96 Miles

2008

5A

2013


3

Old Salinas River

River & Stream

30911010  /  18060011
  • Chlorophyll-a
    • Agriculture
    • Dredging
    • Other Urban Runoff
    • Removal of Riparian Vegetation

3.8 Miles

2008

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Other Urban Runoff

3.8 Miles

2008

5A

2013
  • Diazinon
    • Agriculture
    • Other Urban Runoff

3.8 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Marinas and Recreational Boating
    • Natural Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Marinas and Recreational Boating
    • Natural Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Marinas and Recreational Boating
    • Other Urban Runoff
    • Removal of Riparian Vegetation

3.8 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Other Urban Runoff

3.8 Miles

2008

5A

2013
  • Sediment Toxicity
    • Agriculture
    • Other Urban Runoff

3.8 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Other Urban Runoff

3.8 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Other Urban Runoff

3.8 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Other Urban Runoff

3.8 Miles

2008

5A

2013


3

Old Salinas River Estuary

Estuary

30911010  /  18060011
  • Nutrients
    • Agriculture
    • Agriculture-irrigation tailwater
    • Irrigated Crop Production
    • Nonpoint Source

16 Acres

1992

5A

2013
  • Pesticides
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Irrigated Crop Production
    • Nonpoint Source

16 Acres

1990

5A

2013


3

Orcutt Creek

River & Stream

31210030  /  18060008
  • Ammonia (Unionized)
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

10 Miles

2006

5A

2013
  • Boron
    • Agriculture
    • Other Urban Runoff

10 Miles

2006

5A

2013
  • This listing was made by USEPA.
  • Chloride
    • Agriculture
    • Other Urban Runoff

10 Miles

2008

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

10 Miles

2006

5A

2013
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

10 Miles

2006

5A

2013
  • Diazinon
    • Source Unknown

10 Miles

2008

5A

2013
  • Dieldrin
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

10 Miles

2006

5A

2013
  • Electrical Conductivity
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

10 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

10 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Source Unknown

10 Miles

2002

5A

2013
  • Sediment Toxicity
    • Agriculture
    • Other Urban Runoff

10 Miles

2008

5A

2013
  • Sodium
    • Source Unknown

10 Miles

2008

5A

2013
  • Temperature, water
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation

10 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation

10 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

10 Miles

2008

5A

2013


3

Oso Flaco Creek

River & Stream

31210030  /  18060008
  • Ammonia (Unionized)
    • Agriculture
    • Unknown Nonpoint Source

6.3 Miles

2006

5A

2013
  • Chloride
    • Agriculture
    • Source Unknown

6.3 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Source Unknown

6.3 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Groundwater Loadings

6.3 Miles

2002

5A

2013
  • Sediment Toxicity
    • Agriculture
    • Unknown Nonpoint Source

6.3 Miles

2008

5A

2013
  • Sodium
    • Agriculture
    • Unknown Nonpoint Source

6.3 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Unknown Nonpoint Source

6.3 Miles

2008

5A

2013


3

Oso Flaco Lake

Lake & Reservoir

31210030  /  18060008
  • Dieldrin
    • Agriculture
    • Source Unknown

56 Acres

2006

5A

2013
  • Nitrate
    • Agriculture

56 Acres

2002

5A

2013
  • pH
    • Agriculture
    • Unknown Nonpoint Source

56 Acres

2008

5A

2013


3

Pacheco Creek

River & Stream

30540021  /  18060002
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

25 Miles

2008

5A

2120
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

25 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Grazing-Related Sources

25 Miles

2008

5A

2021


3

Pacific Ocean (Point Ano Nuevo to Soquel Point)

Ocean

30411022  /  18060001
  • Dieldrin
    • Other

0 Acres

2008

5A

2021


3

Pacific Ocean at Arroyo Burro Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532010  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles

2008

5A

2013
  • Total Coliform
    • Source Unknown

0.06 Miles

2002

5A

2013


3

Pacific Ocean at Avila Beach (Avila Pier)

Coastal & Bay Shoreline

 / 
  • Enterococcus
    • Source Unknown


2008

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • Petroleum Activities


2008

5A

2021


3

Pacific Ocean at Avila Beach (SLO creek mouth)

Coastal & Bay Shoreline

 / 
  • Enterococcus
    • Source Unknown


2008

5A

2021


3

Pacific Ocean at Capitola Beach (Santa Cruz County)

Coastal & Bay Shoreline

304130104  /  18060001
  • Enterococcus
    • Natural Sources
    • Other Urban Runoff
    • Recreational and Tourism Activities (non-boating)
    • Source Unknown

0.03 Miles

2008

5A

2021
  • Fecal Coliform
    • Natural Sources
    • Other Urban Runoff
    • Source Unknown

0.03 Miles

2008

5A

2021


3

Pacific Ocean at Carpinteria State Beach (Carpinteria Creek mouth, Santa Barbara County)

Coastal & Bay Shoreline

31534020  /  18060013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2011


3

Pacific Ocean at Cayucos (Cayucos Creek Mouth)

Coastal & Bay Shoreline

 / 
  • Enterococcus
    • Source Unknown


2008

5A

2021


3

Pacific Ocean at East Beach (mouth of Mission Creek, Santa Barbara County)

Coastal & Bay Shoreline

31532011  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles

2008

5A

2013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2013
  • Total Coliform
    • Agriculture
    • Nonpoint Source
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

0.06 Miles

2002

5A

2013


3

Pacific Ocean at East Beach (mouth of Sycamore Creek, Santa Barbara County)

Coastal & Bay Shoreline

31532012  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles

2008

5A

2013


3

Pacific Ocean at Goleta Beach (Santa Barbara County)

Coastal & Bay Shoreline

31531020  /  18060013
  • Total Coliform
    • Source Unknown

0.06 Miles

2008

5A

2013


3

Pacific Ocean at Hammonds Beach (Santa Barbara County)

Coastal & Bay Shoreline

31533010  /  18060013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2011
  • Total Coliform
    • Source Unknown

0.06 Miles

2008

5A

2013


3

Pacific Ocean at Haskells Beach (Santa Barbara County)

Coastal & Bay Shoreline

31510012  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles


5A

2013
  • This listing was made by USEPA for 2006.


3

Pacific Ocean at Hope Ranch Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532010  /  18060013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2011
  • Total Coliform
    • Source Unknown

0.06 Miles

2008

5A

2013


3

Pacific Ocean at Jalama Beach (Santa Barbara County)

Coastal & Bay Shoreline

31510051  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Nonpoint Source
    • Pasture Grazing-Riparian and/or Upland

0.06 Miles

2002

5A

2011


3

Pacific Ocean at Leadbetter Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532011  /  18060013
  • Total Coliform
    • Source Unknown

0.06 Miles

2008

5A

2013


3

Pacific Ocean at Ocean Beach (Santa Barbara County)

Coastal & Bay Shoreline

31410050  /  18060010
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2011
  • Total Coliform
    • Source Unknown

0.06 Miles

2002

5A

2021


3

Pacific Ocean at Olde Port Beach (at restrooms)

Coastal & Bay Shoreline

 / 
  • Enterococcus
    • Source Unknown


2008

5A

2021


3

Pacific Ocean at Point Rincon (mouth of Rincon Cr, Santa Barbara County)

Coastal & Bay Shoreline

31534012  /  18060013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2013
  • Total Coliform
    • Source Unknown

0.06 Miles

2002

5A

2013


3

Pacific Ocean at Refugio Beach (Santa Barbara County)

Coastal & Bay Shoreline

31510022  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles

2008

5A

2013


3

Pajaro River

River & Stream

30510030  /  1.806e+0
  • Boron
    • Agriculture
    • Other Urban Runoff
    • Saltwater Intrusion
    • Source Unknown

32 Miles

2006

5A

2021
  • Impaired length for Boron is below Main Street (in Watsonville) to the mouth.
  • Chlordane
    • Source Unknown

32 Miles

2008

5A

2021
  • Chloride
    • Agriculture
    • Natural Sources
    • Other Urban Runoff
    • Saltwater Intrusion

32 Miles

2008

5A

2021
  • Chlorpyrifos
    • Agriculture
    • Other Urban Runoff

32 Miles

2008

5A

2021
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

32 Miles

2008

5A

2013
  • Dieldrin
    • Source Unknown

32 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Collection System Failure
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland
    • Transient encampments
    • Urban Runoff/Storm Sewers

32 Miles

2008

5A

2011
  • Fecal Coliform
    • Collection System Failure
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland
    • Transient encampments
    • Urban Runoff/Storm Sewers

32 Miles

2002

5A

2011
  • Impaired reach is changed from 2006 to include the entire Pajaro River.
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Unknown Nonpoint Source

32 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Urban Runoff/Storm Sewers

32 Miles

2006

5B

2006
  • In 2006, Nitrate was added by USEPA to this being addressed list because of a completed USEPA approved TMDL for Nutrients.
  • Nutrients
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Agriculture-subsurface drainage
    • Channelization
    • Irrigated Crop Production
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Urban Runoff/Storm Sewers
    • Wastewater - land disposal

32 Miles

1996

5B

2006
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

32 Miles

2008

5A

2021
  • Sedimentation/Siltation
    • Agriculture
    • Grazing-Related Sources
    • Highway/Road/Bridge Runoff
    • Silviculture
    • Streambank Modification/Destabilization
    • Surface Mining
    • Urban Runoff/Storm Sewers

32 Miles

1996

5B

2007
  • Sodium
    • Agriculture
    • Natural Sources
    • Other Urban Runoff
    • Saltwater Intrusion
    • Unknown Nonpoint Source

32 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff
    • Removal of Riparian Vegetation

32 Miles

2008

5A

2021
  • pH
    • Source Unknown

32 Miles

2008

5A

2021


3

Pennington Creek

River & Stream

31022011  /  18060006
  • Fecal Coliform
    • Source Unknown

5.3 Miles

2002

5A

2021
  • For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


3

Pico Creek

River & Stream

31013020  /  18060006
  • Low Dissolved Oxygen
    • Grazing-Related Sources
    • Natural Sources
    • Source Unknown

1.1 Miles

2008

5A

2021
  • Impaired section for low dissolved oxygen is located between the creek mouth and the top of the lagoon (approximately 1/2 mile).


3

Pinto Lake

Lake & Reservoir

30510030  /  18060002
  • Chlorophyll-a
    • Agriculture
    • Groundwater Loadings
    • Nurseries
    • Onsite Wastewater Systems (Septic Tanks)

115 Acres

2008

5A

2021
  • Cyanobacteria hepatotoxic microcystins
    • Agriculture
    • Nurseries
    • Septage Disposal

115 Acres

2008

5A

2021
  • Low Dissolved Oxygen
    • Agriculture
    • Groundwater Loadings
    • Nurseries
    • Onsite Wastewater Systems (Septic Tanks)

115 Acres

2008

5A

2021
  • Scum/Foam-unnatural
    • Agriculture
    • Nurseries
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

115 Acres

2008

5A

2021
  • pH
    • Agriculture
    • Nurseries
    • Onsite Wastewater Systems (Septic Tanks)
    • Other Urban Runoff

115 Acres

2008

5A

2021


3

Pismo Creek

River & Stream

31026014  /  18060006
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Petroleum Activities
    • Resource Extraction
    • Transient encampments

5.5 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Petroleum Activities
    • Resource Extraction
    • Transient encampments

5.5 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Resource Extraction
    • Transient encampments

5.5 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Petroleum Activities
    • Resource Extraction
    • Transient encampments

5.5 Miles

2008

5A

2021
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Resource Extraction
    • Transient encampments

5.5 Miles

2008

5A

2021


3

Porter Gulch Creek

River & Stream

30413013  /  18060001
  • Enterococcus
    • Source Unknown

2.1 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Source Unknown

2.1 Miles

2008

5A

2021


3

Prefumo Creek

River & Stream

31024012  /  18060006
  • Fecal Coliform
    • Agriculture
    • Other Urban Runoff
    • Unknown Nonpoint Source

7.7 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Agriculture
    • Other Urban Runoff
    • Unknown Nonpoint Source

7.7 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Other Urban Runoff
    • Unknown Nonpoint Source

7.7 Miles


5A

2021
  • Turbidity
    • Agriculture
    • Other Urban Runoff
    • Unknown Nonpoint Source

7.7 Miles

2008

5A

2021


3

Quail Creek

River & Stream

30919000  /  1.806e+0
  • Ammonia (Unionized)
    • Agriculture
    • Grazing-Related Sources
    • Nurseries

4.2 Miles

2008

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Grazing-Related Sources
    • Nurseries

4.2 Miles

2008

5A

2013
  • Diazinon
    • Agriculture
    • Grazing-Related Sources
    • Nurseries

4.2 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Nurseries

4.2 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Nurseries

4.2 Miles

2008

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Nurseries
    • Removal of Riparian Vegetation

4.2 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Nurseries
    • Removal of Riparian Vegetation

4.2 Miles


5A

2013
  • Sediment Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Nurseries

4.2 Miles

2008

5A

2013
  • Temperature, water
    • Agriculture
    • Removal of Riparian Vegetation

4.2 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation

4.2 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Nurseries

4.2 Miles

2008

5A

2013


3

Rincon Creek

River & Stream

31534012  /  18060013
  • Boron
    • Agriculture
    • Natural Sources
    • Source Unknown

10 Miles

2006

5A

2021
  • Chloride
    • Source Unknown

10 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources
    • Other Urban Runoff

10 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Other Urban Runoff

10 Miles

2008

5A

2013
  • Sodium
    • Agriculture
    • Natural Sources
    • Other Urban Runoff

10 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Land Development
    • Other Urban Runoff

10 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture
    • Land Development
    • Natural Sources
    • Other Urban Runoff

10 Miles


5A

2021


3

Rodeo Creek Gulch

River & Stream

30413014  /  18060001
  • Turbidity
    • Source Unknown

6 Miles

2008

5A

2021
  • pH
    • Source Unknown

6 Miles

2008

5A

2021


3

Romero Creek

River & Stream

31533011  /  18060013
  • pH
    • Natural Sources
    • Other Urban Runoff

5.1 Miles

2008

5A

2021


3

Salinas Reclamation Canal

River & Stream

30911010  /  18060011
  • Ammonia (Unionized)
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2006

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2013
  • Copper
    • Agriculture
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2018
  • Diazinon
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2002

5A

2013
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2013
  • Pesticides
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Irrigated Crop Production
    • Minor Industrial Point Source
    • Nonpoint Source

7.7 Miles

1992

5A

2013
  • Priority Organics
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Irrigated Crop Production
    • Minor Industrial Point Source
    • Nonpoint Source
    • Source Unknown
    • Urban Runoff/Storm Sewers

7.7 Miles

1996

5A

2013
  • Sediment Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Urban Runoff--Industrial Permitted
    • Urban Runoff--Non-industrial Permitted
    • Urban Runoff/Storm Sewers

7.7 Miles

2008

5A

2013


3

Salinas River (lower, estuary to near Gonzales Rd crossing, watersheds 30910 and 30920)

River & Stream

30917000  /  18060011
  • Chlordane
    • Source Unknown

31 Miles

2008

5A

2013
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

31 Miles

2008

5A

2018
  • Chlorpyrifos
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

31 Miles

2008

5A

2013
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

31 Miles

2008

5A

2013
  • Diazinon
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

31 Miles

2008

5A

2013
  • Dieldrin
    • Source Unknown

31 Miles

2008

5A

2013
  • Electrical Conductivity
    • Source Unknown

31 Miles

2008

5A

2013
  • Impaired length for conductivity is from Del Monte Road to the River Mouth.
  • Enterococcus
    • Agriculture
    • Grazing-Related Sources
    • Illegal dumping
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Transient encampments
    • Urban Runoff/Storm Sewers

31 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Illegal dumping
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Transient encampments
    • Urban Runoff/Storm Sewers

31 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Illegal dumping
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Transient encampments
    • Urban Runoff/Storm Sewers

31 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

31 Miles


5A

2013
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

31 Miles

2008

5A

2013
  • Pesticides
    • Agriculture
    • Construction/Land Development
    • Point Source
    • Urban Runoff/Storm Sewers

31 Miles

1994

5A

2013
  • Sodium
    • Source Unknown

31 Miles

2008

5A

2018
  • Total Dissolved Solids
    • Source Unknown

31 Miles

2008

5A

2018
  • Toxaphene
    • Source Unknown

31 Miles

1994

5A

2013
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

31 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

31 Miles

2008

5A

2013
  • pH
    • Source Unknown

31 Miles

2008

5A

2013


3

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

River & Stream

30917000  /  18060005
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Land Development
    • Natural Sources
    • Other Urban Runoff

72 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

72 Miles

2008

5A

2021
  • Pesticides
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Irrigated Crop Production
    • Nonpoint Source

72 Miles

2002

5A

2021
  • Area affected is the lower 20 miles of the middle Salinas River.
  • Temperature, water
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

72 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

72 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

72 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

72 Miles

2008

5A

2021


3

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

River & Stream

30981112  /  18060005
  • Chloride
    • Agriculture
    • Pasture Grazing-Riparian and/or Upland
    • Urban Runoff/Storm Sewers

49 Miles

2002

5A

2021
  • Sodium
    • Agriculture
    • Pasture Grazing-Riparian and/or Upland
    • Urban Runoff/Storm Sewers

49 Miles

2002

5A

2021
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

49 Miles

2008

5A

2021


3

Salinas River Lagoon (North)

Estuary

30911010  /  18060011
  • Nutrients
    • Nonpoint Source

197 Acres

1992

5A

2013
  • Pesticides
    • Agriculture

197 Acres

1992

5A

2013


3

Salinas River Refuge Lagoon (South)

Estuary

30911010  /  18060011
  • Turbidity
    • Agriculture
    • Land Development
    • Other Urban Runoff

30 Acres

2008

5A

2013
  • pH
    • Agriculture
    • Land Development
    • Natural Sources
    • Other Urban Runoff

30 Acres

2008

5A

2013


3

Salsipuedes Creek (Santa Barbara County)

River & Stream

31420023  /  18060013
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

9.2 Miles

2008

5A

2021
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

9.2 Miles

2008

5A

2021


3

Salsipuedes Creek (Santa Cruz County)

River & Stream

30510030  /  18060002
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources
    • Other Urban Runoff
    • Transient encampments

2.6 Miles

2008

5A

2011
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Other Urban Runoff
    • Transient encampments

2.6 Miles

2008

5A

2011
  • Low Dissolved Oxygen
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation

2.6 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Other Urban Runoff
    • Removal of Riparian Vegetation

2.6 Miles

2008

5A

2021
  • pH
    • Source Unknown

2.6 Miles

2008

5A

2021


3

San Antonio Creek (San Antonio Watershed, Rancho del las Flores Bridge at Hwy 135 to downstream at Railroad Bridge)

River & Stream

31300050  /  18060009
  • Ammonia (Unionized)
    • Agriculture
    • Source Unknown

14 Miles

2008

5A

2021
  • Boron
    • Natural Sources

14 Miles

2002

5A

2021
  • This listing was made by USEPA.
  • Chloride
    • Agriculture
    • Natural Sources

14 Miles

2008

5A

2021
  • Chlorpyrifos
    • Agriculture
    • Source Unknown

14 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources
    • Source Unknown

14 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Source Unknown

14 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Agriculture
    • Source Unknown

14 Miles

2008

5A

2021
  • Nitrogen, Nitrite
    • Source Unknown

14 Miles

2006

5A

2021
  • Sodium
    • Agriculture
    • Natural Sources

14 Miles

2008

5A

2021


3

San Antonio River (below San Antonio Reservoir)

River & Stream

30981005  /  18060005
  • Escherichia coli (E. Coli)
    • Natural Sources
    • Source Unknown

11 Miles

2008

5A

2021
  • Fecal Coliform
    • Natural Sources
    • Source Unknown

11 Miles

2008

5A

2021


3

San Benito River

River & Stream

30530020  /  1.806e+0
  • Boron
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff
    • Resource Extraction
    • Source Unknown

86 Miles

2008

5A

2021
  • Electrical Conductivity
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff
    • Resource Extraction
    • Source Unknown

86 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

86 Miles

2008

5A

2011
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Other Urban Runoff
    • Source Unknown

86 Miles

2002

5A

2011
  • Sedimentation/Siltation
    • Source Unknown

86 Miles

1990

5B

2007
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff
    • Resource Extraction
    • Source Unknown

86 Miles

2008

5A

2021
  • pH
    • Natural Sources

86 Miles

2008

5A

2021


3

San Bernardo Creek

River & Stream

31022012  /  18060006
  • Fecal Coliform
    • Source Unknown

6.9 Miles

2002

5A

2021
  • For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


3

San Jose Creek (Santa Barbara County)

River & Stream

31531010  /  18060013
  • Chloride
    • Channelization
    • Industrial Point Sources
    • Other Urban Runoff

10 Miles

2008

5A

2021
  • Electrical Conductivity
    • Channelization
    • Industrial Point Sources
    • Other Urban Runoff

10 Miles

2008

5A

2021
  • Enterococcus
    • Industrial Point Sources
    • Natural Sources
    • Other Urban Runoff

10 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Industrial Point Sources
    • Natural Sources
    • Other Urban Runoff

10 Miles

2008

5A

2013
  • Fecal Coliform
    • Industrial Point Sources
    • Natural Sources
    • Other Urban Runoff

10 Miles

2008

5A

2013
  • Sodium
    • Channelization
    • Industrial Point Sources
    • Other Urban Runoff

10 Miles

2008

5A

2021
  • pH
    • Source Unknown

10 Miles

2008

5A

2021


3

San Juan Creek (San Benito County)

River & Stream

30520050  /  18060002
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Unknown Nonpoint Source

7.3 Miles

2008

5A

2011
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Unknown Nonpoint Source

7.3 Miles

2008

5A

2011
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Unknown Nonpoint Source

7.3 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Unknown Nonpoint Source

7.3 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Source Unknown

7.3 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture
    • Removal of Riparian Vegetation
    • Unknown Nonpoint Source

7.3 Miles

2008

5A

2021


3

San Lorenzo Creek (Monterey County)

River & Stream

30970023  /  18060005
  • Boron
    • Source Unknown

49 Miles

2002

5A

2021
  • Chloride
    • Grazing-Related Sources
    • Natural Sources
    • Source Unknown

49 Miles

2008

5A

2021
  • Electrical Conductivity
    • Natural Sources

49 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Grazing-Related Sources
    • Natural Sources

49 Miles

2008

5A

2021
  • Fecal Coliform
    • Grazing-Related Sources
    • Natural Sources

49 Miles

2002

5A

2021
  • Sodium
    • Grazing-Related Sources
    • Natural Sources

49 Miles

2008

5A

2120
  • pH
    • Grazing-Related Sources
    • Natural Sources

49 Miles

2008

5A

2021


3

San Lorenzo River

River & Stream

30412022  /  18060001
  • Chlordane
    • Source Unknown

27 Miles

2008

5A

2021
  • Chlorpyrifos
    • Source Unknown

27 Miles

2008

5A

2021
  • Impaired length from San Lorenzo River Lagoon to confluence with Zayante Creek (approximately 7 miles).
  • Nutrients
    • Natural Sources
    • Nonpoint Source
    • Pasture Grazing-Riparian and/or Upland
    • Septage Disposal

27 Miles

1996

5B

2003
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

27 Miles

2008

5A

2021
  • Pathogens
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Other Urban Runoff
    • Transient encampments
    • Unknown Nonpoint Source

27 Miles

1998

5A

2011
  • Sedimentation/Siltation
    • Construction/Land Development
    • Land Development
    • Silviculture
    • Urban Runoff/Storm Sewers

27 Miles

1998

5B

2004


3

San Lorenzo River Lagoon

Estuary

30412053  /  18060001
  • Pathogens
    • Natural Sources
    • Urban Runoff/Storm Sewers

66 Acres

1990

5A

2011


3

San Luis Obispo Creek (above Osos Street)

River & Stream

31024011  /  18060006
  • Fecal Coliform
    • Source Unknown

1.6 Miles

2008

5A

2021
  • Impaired length is Marsh Street Bridge to Cuesta Park.


3

San Luis Obispo Creek (below Osos Street)

River & Stream

31024012  /  18060006
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Other Urban Runoff

10 Miles

2008

5A

2021
  • Chlorpyrifos
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

10 Miles

2008

5A

2021
  • Nitrate as Nitrate (NO3)
    • Agriculture
    • Grazing-Related Sources
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Natural Sources
    • Upstream Impoundment
    • Urban Runoff/Storm Sewers

10 Miles

2006

5B

2007
  • For 2006, nitrate as nitrate (NO3) was moved by USEPA from the 303(d) list to the being addressed list because of a completed USEPA approved TMDL.
  • Nutrients
    • Agriculture
    • Municipal Point Sources

10 Miles

1994

5B

2007
  • For 2006, nutrients moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Pathogens
    • Agriculture
    • Grazing-Related Sources
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Natural Sources
    • Transient encampments
    • Urban Runoff/Storm Sewers

10 Miles

1994

5B

2004
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Other Urban Runoff

10 Miles

2008

5A

2021


3

San Luisito Creek

River & Stream

31022011  /  18060006
  • Fecal Coliform
    • Source Unknown

6.7 Miles

2002

5A

2021
  • For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


3

San Miguelito Creek

River & Stream

31410040  /  18060013
  • Chloride
    • Source Unknown

9.8 Miles

2008

5A

2021
  • Sodium
    • Source Unknown

9.8 Miles

2008

5A

2021
  • Temperature, water
    • Channelization
    • Removal of Riparian Vegetation

9.8 Miles

2008

5A

2021
  • pH
    • Channelization
    • Removal of Riparian Vegetation

9.8 Miles

2008

5A

2021


3

San Pedro Creek (Santa Barbara County)

River & Stream

31531020  /  18060013
  • Enterococcus
    • Golf course activities
    • Natural Sources
    • Other Urban Runoff

6.5 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Golf course activities
    • Natural Sources
    • Other Urban Runoff

6.5 Miles

2008

5A

2013
  • Fecal Coliform
    • Golf course activities
    • Natural Sources
    • Other Urban Runoff

6.5 Miles

2008

5A

2013
  • Sodium
    • Golf course activities
    • Natural Sources
    • Other Urban Runoff

6.5 Miles

2008

5A

2021
  • Temperature, water
    • Golf course activities
    • Natural Sources
    • Other Urban Runoff

6.5 Miles

2008

5A

2021
  • pH
    • Golf course activities
    • Natural Sources
    • Other Urban Runoff

6.5 Miles

2008

5A

2021


3

San Simeon Creek

River & Stream

31013012  /  18060006
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Wastewater - land disposal

5.6 Miles

2008

5A

2021
  • Impaired length for Chloride is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Wastewater - land disposal

5.6 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Wastewater - land disposal

5.6 Miles

2008

5A

2021
  • Impaired length for Nitrate is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Wastewater - land disposal

5.6 Miles

2008

5A

2021
  • Impaired length for Sodium is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.


3

San Vicente Creek (Santa Cruz County)

River & Stream

30411023  /  18060001
  • Sedimentation/Siltation
    • Disturbed Sites (Land Develop.)
    • Natural Sources
    • Resource Extraction
    • Silviculture
    • Source Unknown

9.1 Miles

2006

5A

2021


3

Santa Maria River

River & Stream

31210030  /  1.806e+0
  • Chloride
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

51 Miles

2008

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

51 Miles

2006

5A

2013
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

51 Miles

2006

5A

2013
  • Dieldrin
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

51 Miles

2006

5A

2013
  • Endrin
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

51 Miles

2006

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

51 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Other Urban Runoff

51 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

51 Miles

2002

5A

2013
  • Sediment Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

51 Miles

2008

5A

2013
  • Sodium
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

51 Miles

2008

5A

2013
  • Toxaphene
    • Source Unknown

51 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

51 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Other Urban Runoff

51 Miles

2008

5A

2013


3

Santa Maria River Estuary

Estuary

31210030  /  18060008
  • Escherichia coli (E. Coli)
    • Agriculture
    • Collection System Failure
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

5.8 Acres

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Collection System Failure
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

5.8 Acres

2008

5A

2013
  • Total Coliform
    • Agriculture
    • Collection System Failure
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

5.8 Acres

2008

5A

2013


3

Santa Monica Creek

River & Stream

31534020  /  18060013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Other Urban Runoff

6.3 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Other Urban Runoff

6.3 Miles

2008

5A

2021


3

Santa Rita Creek (Monterey County)

River & Stream

30919000  /  18060011
  • Ammonia (Unionized)
    • Agriculture
    • Other Urban Runoff

11 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Natural Sources
    • Other Urban Runoff

11 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Other Urban Runoff

11 Miles

2008

5A

2013
  • Low Dissolved Oxygen
    • Source Unknown

11 Miles

2008

5A

2013
  • Nitrate
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles


5A

2013
  • Sodium
    • Agriculture
    • Other Urban Runoff

11 Miles

2008

5A

2018
  • Turbidity
    • Agriculture
    • Other Urban Runoff

11 Miles

2008

5A

2013


3

Santa Rosa Creek (San Luis Obispo County)

River & Stream

31420011  /  18060010
  • Temperature, water
    • Agriculture
    • Disturbed Sites (Land Develop.)
    • Grazing-Related Sources
    • Other Urban Runoff
    • Water Diversions

23 Miles

2008

5A

2021


3

Santa Ynez River (Cachuma Lake to below city of Lompoc)

River & Stream

31440050  /  18060010
  • Sedimentation/Siltation
    • Agriculture
    • Resource Extraction
    • Urban Runoff/Storm Sewers

43 Miles

2006

5A

2021
  • Sodium
    • Agriculture
    • Flow Regulation/Modification
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

43 Miles

2008

5A

2021
  • Temperature, water
    • Agriculture
    • Disturbed Sites (Land Develop.)
    • Flow Regulation/Modification
    • Grazing-Related Sources
    • Other Urban Runoff

43 Miles

2008

5A

2021
  • Total Dissolved Solids
    • Agriculture
    • Flow Regulation/Modification
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

43 Miles

2008

5A

2021


3

Santa Ynez River (below city of Lompoc to Ocean)

River & Stream

31410040  /  18060010
  • Chloride
    • Agriculture
    • Municipal Point Sources
    • Natural Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Natural Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Natural Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Other Urban Runoff

3.8 Miles


5A

2021
  • Sedimentation/Siltation
    • Agriculture
    • Resource Extraction
    • Urban Runoff/Storm Sewers

3.8 Miles

1996

5A

2021
  • Sodium
    • Agriculture
    • Municipal Point Sources
    • Natural Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2021
  • Temperature, water
    • Agriculture
    • Flow Regulation/Modification
    • Grazing-Related Sources
    • Municipal Point Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2021
  • Total Dissolved Solids
    • Agriculture
    • Grazing-Related Sources
    • Municipal Point Sources
    • Natural Sources
    • Other Urban Runoff

3.8 Miles

2008

5A

2021


3

Schwan Lake

Lake & Reservoir

30412053  /  18060001
  • Escherichia coli (E. Coli)
    • Natural Sources
    • Urban Runoff/Storm Sewers

23 Acres

2008

5A

2021
  • Fecal Coliform
    • Natural Sources
    • Urban Runoff/Storm Sewers

23 Acres

2008

5A

2021
  • Nutrients
    • Nonpoint Source

23 Acres

1992

5A

2021
  • Total Coliform
    • Natural Sources
    • Urban Runoff/Storm Sewers

23 Acres

2008

5A

2021


3

Shuman Canyon Creek

River & Stream

31300041  /  18060009
  • Sedimentation/Siltation
    • Source Unknown

8.5 Miles

2006

5A

2021


3

Soda Lake

Saline Lake

31100050  /  18060003
  • Ammonia (Unionized)
    • Source Unknown

2627 Acres

2006

5A

2021


3

Soquel Creek

River & Stream

30413011  /  18060001
  • Enterococcus
    • Collection System Failure
    • Natural Sources
    • Transient encampments
    • Urban Runoff/Storm Sewers

18 Miles

2008

5A

2011
  • Escherichia coli (E. Coli)
    • Collection System Failure
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments
    • Urban Runoff/Storm Sewers

18 Miles

2008

5A

2011
  • Fecal Coliform
    • Collection System Failure
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments
    • Urban Runoff/Storm Sewers

18 Miles

2008

5A

2011
  • Turbidity
    • Source Unknown

18 Miles

2008

5A

2021


3

Soquel Lagoon

Estuary

30413014  /  18060001
  • Pathogens
    • Collection System Failure
    • Onsite Wastewater Systems (Septic Tanks)
    • Pasture Grazing-Riparian and/or Upland
    • Transient encampments
    • Urban Runoff/Storm Sewers

1.2 Acres

1990

5A

2011
  • Sedimentation/Siltation
    • Construction/Land Development

1.2 Acres

1992

5A

2021


3

Spring Lakes Creek

River & Stream

30412050  /  18060001
  • pH
    • Source Unknown

0.14 Miles

2008

5A

2021


3

Stenner Creek

River & Stream

31024010  /  18060006
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Other Urban Runoff

7.5 Miles

2008

5A

2021


3

Struve Slough

River & Stream

30510030  /  18060002
  • Low Dissolved Oxygen
    • Agriculture
    • Other Urban Runoff

2.8 Miles

2008

5A

2021
  • Pathogens
    • Source Unknown

2.8 Miles

2008

5B

2007
  • pH
    • Source Unknown

2.8 Miles

2008

5A

2021


3

Sycamore Creek

River & Stream

31532012  /  18060013
  • Chloride
    • Source Unknown

3.8 Miles

2008

5A

2021
  • Fecal Coliform
    • Natural Sources
    • Transient encampments
    • Urban Runoff/Storm Sewers

3.8 Miles

2008

5A

2013
  • Sodium
    • Source Unknown

3.8 Miles

2008

5A

2021


3

Tecolote Creek (Santa Barbara County)

River & Stream

31510013  /  18060013
  • Chloride
    • Natural Sources
    • Source Unknown

6.7 Miles

2008

5A

2021
  • Sodium
    • Natural Sources
    • Source Unknown

6.7 Miles

2008

5A

2021


3

Tembladero Slough

River & Stream

30911010  /  18060011
  • Chlorophyll-a
    • Agriculture
    • Grazing-Related Sources
    • Removal of Riparian Vegetation
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Chlorpyrifos
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Diazinon
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Enterococcus
    • Agriculture
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Urban Runoff/Storm Sewers

5.5 Miles

2002

5A

2013
  • Nitrate
    • Agriculture
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Nutrients
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Irrigated Crop Production
    • Nonpoint Source

5.5 Miles

1996

5A

2013
  • Pesticides
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-storm runoff
    • Irrigated Crop Production
    • Nonpoint Source

5.5 Miles

1996

5A

2013
  • Sediment Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Total Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Turbidity
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • Unknown Toxicity
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

5.5 Miles

2008

5A

2013


3

Tequisquita Slough

River & Stream

30530020  /  18060002
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Nonpoint Source

7.2 Miles

2002

5A

2011
  • Low Dissolved Oxygen
    • Source Unknown

7.2 Miles

2008

5A

2021
  • Turbidity
    • Source Unknown

7.2 Miles

2008

5A

2021
  • pH
    • Source Unknown

7.2 Miles

2008

5A

2021


3

Toro Canyon Creek

River & Stream

31534010  /  18060013
  • Fecal Coliform
    • Agriculture
    • Natural Sources
    • Transient encampments

3.8 Miles

2008

5A

2021


3

Toro Creek

River & Stream

31018010  /  18060006
  • Fecal Coliform
    • Grazing-Related Sources
    • Natural Sources
    • Petroleum Activities

16 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Grazing-Related Sources
    • Natural Sources
    • Petroleum Activities

16 Miles

2008

5A

2021


3

Tres Pinos Creek

River & Stream

30530020  /  18060002
  • Escherichia coli (E. Coli)
    • Source Unknown

31 Miles

2008

5A

2011
  • Fecal Coliform
    • Source Unknown

31 Miles

2008

5A

2011
  • pH
    • Natural Sources
    • Source Unknown

31 Miles

2008

5A

2021


3

Tularcitos Creek

River & Stream

30700032  /  18060012
  • Chloride
    • Source Unknown

14 Miles

2008

5A

2021
  • Fecal Coliform
    • Source Unknown

14 Miles

2008

5A

2021
  • Sodium
    • Source Unknown

14 Miles

2008

5A

2021


3

Uvas Creek (above Uvas Reservoir)

River & Stream

30520010  /  18060002
  • Temperature, water
    • Source Unknown

8.2 Miles

2008

5A

2021
  • pH
    • Source Unknown

8.2 Miles

2008

5A

2021


3

Uvas Creek (below Uvas Reservoir)

River & Stream

30520021  /  18060002
  • Low Dissolved Oxygen
    • Agriculture
    • Other Urban Runoff

7.8 Miles

2008

5A

2021
  • Turbidity
    • Agriculture
    • Other Urban Runoff
    • Source Unknown

7.8 Miles

2008

5A

2021


3

Valencia Creek

River & Stream

30413023  /  18060001
  • Pathogens
    • Source Unknown

6.2 Miles

2002

5A

2011
  • Sedimentation/Siltation
    • Agriculture
    • Construction/Land Development

6.2 Miles

2002

5A

2021


3

Walters Creek

River & Stream

31022011  /  18060006
  • Fecal Coliform
    • Source Unknown

2.8 Miles

2002

5A

2021
  • For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


3

Warden Creek

River & Stream

31023010  /  18060006
  • Fecal Coliform
    • Source Unknown

6 Miles

2002

5B

2004
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources

6 Miles

2002

5A

2021
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

6 Miles

2008

5B

2005


3

Watsonville Creek

River & Stream

30510030  /  18060011
  • Escherichia coli (E. Coli)
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

5.1 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

5.1 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Agriculture
    • Grazing-Related Sources
    • Groundwater Loadings
    • Removal of Riparian Vegetation

5.1 Miles

2008

5A

2021
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Groundwater Loadings
    • Removal of Riparian Vegetation

5.1 Miles

2008

5A

2021
  • pH
    • Agriculture
    • Grazing-Related Sources
    • Groundwater Loadings
    • Removal of Riparian Vegetation

5.1 Miles

2008

5A

2021


3

Watsonville Slough

River & Stream

30510030  /  18060002
  • Low Dissolved Oxygen
    • Agriculture
    • Removal of Riparian Vegetation
    • Urban Runoff/Storm Sewers

6.2 Miles

2008

5A

2021
  • Pathogens
    • Agriculture
    • Collection System Failure
    • Grazing-Related Sources
    • Landfills
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Urban Runoff/Storm Sewers

6.2 Miles

1996

5B

2007
  • Pesticides
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Irrigated Crop Production
    • Nonpoint Source

6.2 Miles

1996

5A

2021
  • Turbidity
    • Agriculture
    • Removal of Riparian Vegetation
    • Urban Runoff/Storm Sewers

6.2 Miles

2008

5A

2021


3

Zayante Creek

River & Stream

30412040  /  18060001
  • Chlorpyrifos
    • Source Unknown

9.2 Miles

2008

5A

2021
  • Fecal Coliform
    • Source Unknown

9.2 Miles

2008

5A

2021
  • Sedimentation/Siltation
    • Agriculture
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Nonpoint Source
    • Road Construction
    • Silviculture

9.2 Miles

2002

5B

2004