Regional Board 5 - Central Valley Region CATEGORY 5 Draft 2008 California 305(b)/303(d) Integrated Report
11 May 2009
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***

5

Agatha Canal (Merced County)

River & Stream

54120000  /  18040001
  • pH
    • Source Unknown

2.5 Miles

2008

5A

2021


5

Almanor Lake

Lake & Reservoir

51841000  /  18020121
  • Mercury
    • Resource Extraction

25314 Acres

2008

5A

2021


5

Amador Lake

Lake & Reservoir

53240041  /  18040012
  • pH (high)
    • Source Unknown

299 Acres

2008

5A

2021


5

American River, Lower (Nimbus Dam to confluence with Sacramento River)

River & Stream

51921000  /  18020109
  • Mercury
    • Resource Extraction

27 Miles

1990

5A

2010
  • All resource extraction sources are abandoned mines.
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

27 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

27 Miles

1990

5A

2021


5

American River, North Fork

River & Stream

51421010  /  18020128
  • Mercury
    • Resource Extraction

71 Miles

2008

5A

2019
  • This listing is from North Fork Dam to Folsom Lake.


5

American River, South Fork (below Slab Creek Reservoir to Folsom Lake)

River & Stream

51432060  /  18020129
  • Mercury
    • Resource Extraction

37 Miles

2006

5A

2021


5

Anderson Creek (Shasta County)

River & Stream

50810000  /  18020101
  • Escherichia coli (E. Coli)
    • Source Unknown

16 Miles

2008

5A

2021


5

Arcade Creek

River & Stream

51921000  /  18020111
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

9.9 Miles

1998

5B

2004
  • Copper
    • Source Unknown

9.9 Miles

2002

5A

2021
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

9.9 Miles

1998

5B

2004
  • The agricultural source of diazinon for these waterbodies is from aerial deposition.
  • Malathion
    • Agriculture
    • Urban Runoff/Storm Sewers

9.9 Miles

2008

5A

2021
  • Pyrethroids
    • Urban Runoff/Storm Sewers

9.9 Miles

2008

5A

2021


5

Ash Creek, Upper

River & Stream

52664024  /  18020002
  • Escherichia coli (E. Coli)
    • Source Unknown

19 Miles

2008

5A

2021
  • pH
    • Source Unknown

19 Miles

2008

5A

2021


5

Ash Slough (Madera County)

River & Stream

54520000  /  18040001
  • Chlorpyrifos
    • Source Unknown

27 Miles

2008

5A

2021


5

Avena Drain

River & Stream

53140000  /  18040002
  • Ammonia
    • Agriculture
    • Dairies

6.4 Miles

2002

5A

2020
  • Pathogens
    • Agriculture
    • Dairies

6.4 Miles

2002

5A

2020


5

Bates Slough (from Avenue 200 to Deep Creek, Tulare County)

River & Stream

55810000  /  18030012
  • Unknown Toxicity
    • Source Unknown

7.5 Miles

2008

5A

2021


5

Beach Lake

Lake & Reservoir

51000000  /  18020109
  • Mercury
    • Resource Extraction

96 Acres

2008

5A

2021


5

Bear Creek (San Joaquin and Calaveras Counties; partly in Delta Waterways, eastern portion)

River & Stream

53120000  /  18040005
  • Copper
    • Source Unknown

43 Miles

2008

5A

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

43 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

43 Miles

2008

5A

2021


5

Bear Creek (from Bear Valley to San Joaquin River, Mariposa and Merced Counties)

River & Stream

53800010  /  18040001
  • Escherichia coli (E. Coli)
    • Source Unknown

84 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

84 Miles

2008

5A

2021


5

Bear River (Amador Co, Lower Bear River Reservoir to Mokelumne River, N Fork)

River & Stream

53260050  /  18040012
  • Copper
    • Resource Extraction

5.4 Miles

2008

5A

2021


5

Bear River (from Allen to Upper Bear River Reservoir, Amador County)

River & Stream

53260040  /  18040012
  • pH (low)
    • Source Unknown

8.4 Miles

2008

5A

2021


5

Bear River, Lower (below Camp Far West Reservoir)

River & Stream

51510000  /  18020126
  • Chlorpyrifos
    • Agriculture

21 Miles

2008

5A

2021
  • Copper
    • Source Unknown

21 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

21 Miles

2002

5A

2010
  • Mercury
    • Resource Extraction

21 Miles

2008

5A

2015


5

Bear River, Upper (from Combie Lake to Camp Far West Reservoir, Nevada and Placer Counties)

River & Stream

51633010  /  18020126
  • Mercury
    • Resource Extraction

10 Miles

2002

5A

2015


5

Beaver Creek

River & Stream

52641011  /  18020003
  • Escherichia coli (E. Coli)
    • Source Unknown

23 Miles

2008

5A

2021


5

Berenda Creek (Madera County)

River & Stream

54530020  /  18040001
  • Chlorpyrifos
    • Agriculture

21 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

21 Miles

2008

5A

2021


5

Berenda Slough (Madera County)

River & Stream

54520000  /  18040001
  • Chlorpyrifos
    • Agriculture

23 Miles

2008

5A

2021


5

Berryessa, Lake

Lake & Reservoir

51221010  /  18020117
  • Mercury
    • Resource Extraction

19083 Acres

1996

5A

2017


5

Big Chico Creek (Butte and Tehama Counties)

River & Stream

52040000  /  18020103
  • Mercury
    • Resource Extraction

45 Miles

2008

5A

2021


5

Black Butte Reservoir

Lake & Reservoir

50432000  /  18020115
  • Mercury
    • Resource Extraction

4507 Acres

2002

5A

2020


5

Britton Lake

Lake & Reservoir

52631012  /  18020003
  • Mercury
    • Resource Extraction

1100 Acres

2008

5A

2021


5

Burch Creek (Tehama County)

River & Stream

50420070  /  18020103
  • Unknown Toxicity
    • Source Unknown

24 Miles

2008

5A

2021


5

Butte Creek (Butte County)

River & Stream

52040000  /  18020104
  • Mercury
    • Resource Extraction

94 Miles

2008

5A

2021
  • pH
    • Source Unknown

94 Miles

2008

5A

2021


5

Butte Slough

River & Stream

52030000  /  18020104
  • Diazinon
    • Agriculture

8.9 Miles

2002

5A

2010
  • Dichlorvos
    • Agriculture
    • Vector Control Sprays

8.9 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Source Unknown

8.9 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

8.9 Miles

2008

5A

2021


5

Cache Creek, Lower (Clear Lake Dam to Cache Creek Settling Basin near Yolo Bypass)

River & Stream

51120000  /  18020109
  • Boron
    • Source Unknown

96 Miles

2008

5A

2021
  • Mercury
    • Resource Extraction

96 Miles

1996

5B

2007
  • All resource extraction sources are abandoned mines.
  • Unknown Toxicity
    • Source Unknown

96 Miles

1996

5A

2019


5

Calaveras River, Lower (from Bellota Weir to Stockton Diverting Canal)

Coastal & Bay Shoreline

53130000  /  18040004
  • Unknown Toxicity
    • Agriculture

21 Miles

2008

5A

2021


5

Calaveras River, Lower (from Stockton Diverting Canal to the San Joaquin River; partly in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040004
  • Chlorpyrifos
    • Agriculture

7.6 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

7.6 Miles

2002

5A

2021
  • Mercury
    • Resource Extraction

7.6 Miles

2008

5A

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

7.6 Miles

2002

5A

2012
  • Pathogens
    • Urban Runoff/Storm Sewers

7.6 Miles

2002

5B

2008


5

Camanche Reservoir

Lake & Reservoir

53120000  /  18040005
  • Copper
    • Resource Extraction

7389 Acres

2002

5A

2020
  • Mercury
    • Resource Extraction

7389 Acres

2008

5A

2021
  • Zinc
    • Resource Extraction

7389 Acres

2002

5A

2021


5

Camp Far West Reservoir

Lake & Reservoir

51631013  /  18020126
  • Mercury
    • Resource Extraction

1945 Acres

2002

5A

2015


5

Canyon Creek (Modoc County)

River & Stream

52651032  /  18020002
  • Escherichia coli (E. Coli)
    • Source Unknown

18 Miles

2008

5A

2021


5

Carson Creek (from WWTP to Deer Creek)

River & Stream

53222013  /  18040005
  • Aluminum
    • Source Unknown

12 Miles

2006

5A

2019
  • Manganese
    • Source Unknown

12 Miles

2006

5A

2021


5

Chicken Ranch Slough

River & Stream

51921000  /  18020111
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

8 Miles

1998

5B

2004
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

8 Miles

1998

5B

2004
  • The agricultural source of diazinon for these waterbodies is from aerial deposition.
  • Pyrethroids
    • Urban Runoff/Storm Sewers

8 Miles

2008

5A

2021


5

China Slough (from Leininger Road to Sacramento River, Tehama County)

River & Stream

50420070  /  18020103
  • Unknown Toxicity
    • Source Unknown

5.2 Miles

2008

5A

2021


5

Clear Creek (below Whiskeytown Lake, Shasta County)

River & Stream

50810000  /  18020112
  • Mercury
    • Resource Extraction

18 Miles

2008

5A

2021


5

Clover Creek

River & Stream

50732000  /  18020118
  • Fecal Coliform
    • Agriculture-grazing
    • Other

11 Miles

2002

5A

2019


5

Colusa Basin Drain

River & Stream

52010000  /  18020104
  • Azinphos-methyl (Guthion)
    • Agriculture

49 Miles

2002

5A

2019
  • Carbofuran
    • Agriculture

49 Miles

1998

5A

2021
  • Diazinon
    • Agriculture

49 Miles

2002

5A

2008
  • Dieldrin
    • Agriculture

49 Miles

2008

5A

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

49 Miles

2008

5A

2021
  • Group A Pesticides
    • Agriculture

49 Miles

1998

5A

2019
  • Low Dissolved Oxygen
    • Source Unknown

49 Miles

2008

5A

2021
  • Malathion
    • Agriculture

49 Miles

1998

5A

2010
  • Mercury
    • Resource Extraction

49 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

49 Miles

1992

5A

2019


5

Comanche Creek (from Little Chico Creek to Angel Slough, Butte and Glenn Counties)

River & Stream

52040000  /  18020105
  • Diuron
    • Agriculture

15 Miles

2008

5A

2021


5

Combie, Lake

Lake & Reservoir

51633011  /  18020126
  • Mercury
    • Resource Extraction

362 Acres

2002

5A

2015
  • All resource extraction sources are abandoned mines.


5

Concow Creek (tributary to West Branch Feather River, Butte County)

River & Stream

51860031  /  18020121
  • Unknown Toxicity
    • Source Unknown

9.7 Miles

2008

5A

2021


5

Coon Creek, Lower (from Pacific Avenue to Main Canal, Sutter County)

River & Stream

51922000  /  18020109
  • Chlorpyrifos
    • Agriculture

5.8 Miles

2008

5A

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

5.8 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

5.8 Miles

2008

5A

2021


5

Cosumnes River, Lower (below Michigan Bar; partly in Delta Waterways, eastern portion)

River & Stream

53111000  /  18040003
  • Escherichia coli (E. Coli)
    • Source Unknown

36 Miles

2008

5A

2021
  • Invasive Species
    • Source Unknown

36 Miles

2008

5A

2019
  • Sediment Toxicity
    • Agriculture

36 Miles

2008

5A

2021


5

Cosumnes River, Upper (above Michigan Bar)

River & Stream

53223080  /  18040005
  • Invasive Species
    • Source Unknown

17 Miles

2008

5A

2019


5

Cottonwood Creek (S Madera County)

River & Stream

54520000  /  18040001
  • Escherichia coli (E. Coli)
    • Source Unknown

29 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

29 Miles

2008

5A

2021


5

Cross Creek (Kings and Tulare Counties)

River & Stream

55810000  /  18030012
  • Unknown Toxicity
    • Source Unknown

32 Miles

2008

5A

2021


5

Curry Creek (Placer and Sutter Counties)

River & Stream

51922000  /  18020111
  • Pyrethroids
    • Urban Runoff/Storm Sewers

12 Miles

2008

5A

2021


5

Curtis Creek (Tuolumne County)

River & Stream

53631021  /  18040009
  • Escherichia coli (E. Coli)
    • Source Unknown

12 Miles

2008

5A

2021


5

Davis Creek (downstream from Davis Creek Reservoir, Yolo County)

River & Stream

51332010  /  18020116
  • Mercury
    • Resource Extraction

6.3 Miles

2008

5A

2017


5

Davis Creek (upstream from Davis Creek Reservoir, Yolo County)

River & Stream

51332010  /  18020116
  • Mercury
    • Resource Extraction

4.8 Miles

2008

5A

2017


5

Davis Creek Reservoir

Lake & Reservoir

51332010  /  18020116
  • Mercury
    • Resource Extraction

163 Acres

1988

5A

2017


5

Deadman Creek (Merced County)

River & Stream

53570000  /  18040001
  • Chlorpyrifos
    • Agriculture

11 Miles

2008

5A

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

11 Miles

2008

5A

2021


5

Deep Slough (Merced County)

River & Stream

53570000  /  18040001
  • pH
    • Source Unknown

4.6 Miles

2008

5A

2021


5

Deer Creek (Sacramento County)

River & Stream

53222012  /  18040013
  • Iron
    • Source Unknown

12 Miles

2006

5A

2019


5

Deer Creek (Tulare County)

River & Stream

55810000  /  18030005
  • Unknown Toxicity
    • Source Unknown

58 Miles

2008

5A

2021
  • pH (high)
    • Source Unknown

58 Miles

2008

5A

2021


5

Deer Creek (Yuba County)

River & Stream

51712014  /  18020125
  • pH
    • Internal Nutrient Cycling (primarily lakes)

4.3 Miles

2002

5A

2019


5

Deer Creek (from Deer Creek Reservoir to Lake Wildwood, Nevada County)

River & Stream

51720012  /  18020125
  • Mercury
    • Resource Extraction

16 Miles

2008

5A

2016


5

Del Puerto Creek

River & Stream

54110000  /  18040002
  • Bifenthrin
    • Agriculture

6.5 Miles

2008

5A

2010
  • Chlorpyrifos
    • Agriculture

6.5 Miles

2002

5A

2008
  • Diazinon
    • Agriculture

6.5 Miles

2002

5A

2008
  • Dieldrin
    • Agriculture

6.5 Miles

2008

5A

2021
  • Dimethoate
    • Agriculture

6.5 Miles

2008

5A

2021
  • Diuron
    • Agriculture

6.5 Miles

2008

5A

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

6.5 Miles

2008

5A

2021
  • Pyrethroids
    • Agriculture

6.5 Miles

2006

5A

2010
  • The pyrethroids of concern for this listing are bifenthrin, lamdba cyhalothrin, efenvalerate/fedvalerate, and permethrin.
  • Salinity
    • Source Unknown

6.5 Miles

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

6.5 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

6.5 Miles

2008

5A

2021
  • pH (high)
    • Source Unknown

6.5 Miles

2008

5A

2021


5

Delta Waterways (Stockton Ship Channel)

Estuary

54400000  /  18040004
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

1603 Acres

1992

5B

2007
  • DDT
    • Agriculture

1603 Acres

1992

5A

2011
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

1603 Acres

1992

5B

2007
  • Dioxin
    • Source Unknown

1603 Acres

2006

5A

2019
  • The areas of the ship channel impacted by dioxin contamination in sportfish encompass Old Mormon Slough, New Mormon Slough, McLeod Lake, Turning Basin, Morrelli Boat Ramp, and Louis Park Boat Ramp (California Department of Health Services 1998 warning). This listing was made by USEPA in 1998 and was under the Stockton Turning Basin, upper (Port Turning Basin) on previous lists. In order to consolidate listings for same areas, all listings for Stockton Turning Basin are now under the Delta Waterways (Stockton Ship Channel).
  • Furan Compounds
    • Contaminated Sediments

1603 Acres

2006

5A

2019
  • This listing was previously under Stockton Turning Basin, upper (Port Turning Basin). In order to consolidate listings for same areas, all listings for Stockton Turning Basin are now under the Delta Waterways (Stockton Ship Channel).
  • Group A Pesticides
    • Agriculture

1603 Acres

1992

5A

2011
  • Invasive Species
    • Source Unknown

1603 Acres

2006

5A

2019
  • Mercury
    • Resource Extraction

1603 Acres

1992

5A

2009
  • All resource extraction sources are abandoned mines.
  • Organic Enrichment/Low Dissolved Oxygen
    • Municipal Point Sources
    • Urban Runoff/Storm Sewers

1603 Acres

2002

5B

2007
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

1603 Acres

2006

5A

2019
  • The areas of the ship channel impacted by PCB contamination in sportfish encompass Old Mormon Slough, New Mormon Slough, McLeod Lake, Turning Basin, Morrelli Boat Ramp, and Louis Park Boat Ramp (California Department of Health Services 1998 warning). This listing was made by USEPA in 1998 and was under the Stockton Turning Basin, upper (Port Turning Basin) on previous lists. In order to consolidate listings for same areas, all listings for Stockton Turning Basin are now under the Delta Waterways (Stockton Ship Channel).
  • Pathogens
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

1603 Acres

2006

5B

2008
  • This listing was previously under Stockton Turning Basin, upper (Port Turning Basin). In order to consolidate listings for same areas, all listings for Stockton Turning Basin are now under the Delta Waterways (Stockton Ship Channel).
  • Unknown Toxicity
    • Source Unknown

1603 Acres

2006

5A

2019


5

Delta Waterways (central portion)

Estuary

54400000  /  18040003
  • Chlorpyrifos
    • Agricultural Return Flows
    • Urban Runoff/Storm Sewers

11425 Acres

1992

5A

2019
  • DDT
    • Agriculture

11425 Acres

1992

5A

2011
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

11425 Acres

1992

5B

2007
  • Group A Pesticides
    • Agriculture

11425 Acres

1992

5A

2011
  • Invasive Species
    • Source Unknown

11425 Acres

2006

5A

2019
  • Mercury
    • Resource Extraction

11425 Acres

1992

5A

2009
  • All resource extraction sources are abandoned mines.
  • Unknown Toxicity
    • Source Unknown

11425 Acres

1996

5A

2019


5

Delta Waterways (eastern portion)

Estuary

54400000  /  18040005
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

2972 Acres

1992

5B

2007
  • DDT
    • Agriculture

2972 Acres

1992

5A

2011
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

2972 Acres

1992

5B

2007
  • Group A Pesticides
    • Agriculture

2972 Acres

1992

5A

2011
  • Invasive Species
    • Source Unknown

2972 Acres

2006

5A

2019
  • Mercury
    • Resource Extraction

2972 Acres

1992

5A

2009
  • All resource extraction sources are abandoned mines.
  • Unknown Toxicity
    • Source Unknown

2972 Acres

1996

5A

2019


5

Delta Waterways (export area)

Estuary

54400000  /  18040003
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

583 Acres

1992

5B

2007
  • DDT
    • Agriculture

583 Acres

1992

5A

2011
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

583 Acres

1992

5B

2007
  • Electrical Conductivity
    • Agriculture

583 Acres

2006

5A

2019
  • Group A Pesticides
    • Agriculture

583 Acres

1992

5A

2011
  • Invasive Species
    • Source Unknown

583 Acres

2006

5A

2019
  • Mercury
    • Resource Extraction

583 Acres

1992

5A

2009
  • All resource extraction sources are abandoned mines.
  • Unknown Toxicity
    • Source Unknown

583 Acres

1996

5A

2019


5

Delta Waterways (northern portion)

Estuary

51000000  /  18020109
  • Chlordane
    • Agriculture

6795 Acres

2008

5A

2011
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

6795 Acres

1992

5B

2007
  • DDT
    • Agriculture

6795 Acres

1992

5A

2011
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

6795 Acres

1992

5B

2007
  • Dieldrin
    • Agriculture

6795 Acres

2008

5A

2011
  • Group A Pesticides
    • Agriculture

6795 Acres

1992

5A

2011
  • Invasive Species
    • Source Unknown

6795 Acres

2006

5A

2019
  • Mercury
    • Resource Extraction

6795 Acres

1992

5A

2009
  • All resource extraction sources are abandoned mines.
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

6795 Acres

1992

5A

2019
  • Unknown Toxicity
    • Source Unknown

6795 Acres

1996

5A

2019


5

Delta Waterways (northwestern portion)

Estuary

51000000  /  18020109
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

2587 Acres

1992

5B

2007
  • DDT
    • Agriculture

2587 Acres

1992

5A

2011
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

2587 Acres

1992

5B

2007
  • Electrical Conductivity
    • Agriculture

2587 Acres

2006

5A

2019
  • Group A Pesticides
    • Agriculture

2587 Acres

1992

5A

2011
  • Invasive Species
    • Source Unknown

2587 Acres

2006

5A

2019
  • Mercury
    • Resource Extraction

2587 Acres

1992

5A

2009
  • All resource extraction sources are abandoned mines.
  • Unknown Toxicity
    • Source Unknown

2587 Acres

1992

5A

2019


5

Delta Waterways (southern portion)

Estuary

54400000  /  18040002
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

3125 Acres

1992

5B

2007
  • DDT
    • Agriculture

3125 Acres

1992

5A

2011
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

3125 Acres

1992

5B

2007
  • Electrical Conductivity
    • Agriculture

3125 Acres

2006

5A

2019
  • Group A Pesticides
    • Agriculture

3125 Acres

1992

5A

2011
  • Invasive Species
    • Source Unknown

3125 Acres

2006

5A

2019
  • Mercury
    • Resource Extraction

3125 Acres

1992

5A

2009
  • All resource extraction sources are abandoned mines.
  • Unknown Toxicity
    • Source Unknown

3125 Acres

1996

5A

2019


5

Delta Waterways (western portion)

Estuary

54400000  /  18040003
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

14524 Acres

2006

5A

2006
  • DDT
    • Agriculture

14524 Acres

2006

5A

2011
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

14524 Acres

2006

5B

2007
  • Electrical Conductivity
    • Agriculture

14524 Acres

2006

5A

2019
  • Group A Pesticides
    • Agriculture

14524 Acres

2006

5A

2011
  • Invasive Species
    • Source Unknown

14524 Acres

2006

5A

2019
  • Mercury
    • Resource Extraction

14524 Acres

2006

5A

2009
  • All resource extraction sources are abandoned mines.
  • Unknown Toxicity
    • Source Unknown

14524 Acres

2002

5A

2019


5

Dolly Creek

River & Stream

51854030  /  18020122
  • Copper
    • Resource Extraction

1.5 Miles

1992

5A

2019
  • All resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

1.5 Miles

1992

5A

2019
  • All resource extraction sources are abandoned mines.


5

Don Pedro Lake

Lake & Reservoir

53632010  /  18040009
  • Mercury
    • Resource Extraction

11056 Acres

2002

5A

2020


5

Dry Creek (tributary to Tuolumne River at Modesto, E Stanislaus County)

River & Stream

53540011  /  18040002
  • Chlorpyrifos
    • Agriculture

34 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

34 Miles

2008

5A

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

34 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

34 Miles

2008

5A

2021


5

Duck Creek (San Joaquin County)

River & Stream

53140000  /  18040002
  • Chlorpyrifos
    • Agriculture

33 Miles

2008

5A

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

33 Miles

2008

5A

2021
  • Mercury
    • Resource Extraction

33 Miles

2008

5A

2019


5

Duck Slough (Merced County)

River & Stream

53570000  /  18040001
  • Chlorpyrifos
    • Agriculture

27 Miles

2008

5A

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

27 Miles

2008

5A

2021
  • Sediment Toxicity
    • Source Unknown

27 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

27 Miles

2008

5A

2021


5

Duck Slough (in Delta Waterways, northern portion)

River & Stream

51000000  /  18020109
  • Chlorpyrifos
    • Source Unknown

2.7 Miles

2008

5A

2021


5

Dunn Creek (Mt Diablo Mine to Marsh Creek)

River & Stream

54300021  /  18040003
  • Mercury
    • Resource Extraction

0.7 Miles

1994

5A

2015
  • All resource extraction sources are abandoned mines.
  • Metals
    • Resource Extraction

0.7 Miles

1994

5A

2019
  • All resource extraction sources are abandoned mines.


5

East Park Reservoir

Lake & Reservoir

52233000  /  18020115
  • Mercury
    • Resource Extraction

1698 Acres

2008

5A

2021


5

Eastman Lake (Shasta County)

Lake & Reservoir

52641053  /  18020003
  • pH
    • Source Unknown

19 Acres

2008

5A

2021


5

Elbow Creek (from Mathews Ditch to Cottonwood Creek, Tulare County)

River & Stream

55810000  /  18030012
  • Chlorpyrifos
    • Agriculture

11 Miles

2008

5A

2021


5

Elder Creek

River & Stream

51911000  /  18020109
  • Chlorpyrifos
    • Storm sewers

11 Miles

1998

5B

2004
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

1998

5B

2004
  • The agricultural source of diazinon for these waterbodies is from aerial deposition.
  • Pyrethroids
    • Urban Runoff/Storm Sewers

11 Miles

2008

5A

2021


5

Elder Creek (at Gerber)

River & Stream

50420070  /  18020114
  • Chlorpyrifos
    • Source Unknown

29 Miles

2008

5A

2021
  • Diazinon
    • Source Unknown

29 Miles

2008

5A

2021


5

Elk Bayou (Tulare County)

River & Stream

55810000  /  18030012
  • Chlorpyrifos
    • Agriculture

11 Miles

2008

5A

2021
  • Dimethoate
    • Agriculture

11 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

11 Miles

2008

5A

2021
  • pH (high)
    • Source Unknown

11 Miles

2008

5A

2021


5

Englebright Lake

Lake & Reservoir

51714013  /  18020125
  • Mercury
    • Resource Extraction

754 Acres

2002

5A

2016
  • All resource extraction sources are abandoned mines.


5

Fall River (Pit)

River & Stream

52641031  /  18020003
  • Sedimentation/Siltation
    • Historic Land Management Activities

8.6 Miles

1996

5A

2019
  • The sedimentation is accumulated sand size sediment in the upper Fall River. The historic land management activities include logging, grazing, channelization, roads, and railroads.


5

Fall River, tributary to Feather River, Middle Fork (Butte and Plumas Counties)

River & Stream

51832062  /  18020123
  • Unknown Toxicity
    • Source Unknown

22 Miles

2008

5A

2021


5

Feather River, Lower (Lake Oroville Dam to Confluence with Sacramento River)

River & Stream

51540000  /  18020109
  • Chlorpyrifos
    • Agriculture

42 Miles

1996

5A

2019
  • Group A Pesticides
    • Agriculture

42 Miles

1990

5A

2011
  • Mercury
    • Resource Extraction

42 Miles

1992

5A

2012
  • All resource extraction sources are abandoned mines.
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

42 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

42 Miles

1992

5A

2019


5

Feather River, Middle Fork (Sierra Valley to Lake Oroville, Butte and Plumas Counties)

River & Stream

51833050  /  18020123
  • Unknown Toxicity
    • Source Unknown

77 Miles

2008

5A

2021
  • This listing apples to the reach from Long Valley Creek to Lake Oroville.


5

Feather River, North Fork (below Lake Almanor)

River & Stream

51812000  /  18020121
  • Mercury
    • Resource Extraction

54 Miles

2006

5A

2021
  • This listing is from Poe Reservoir Dam to Lake Oroville.
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

54 Miles

2008

5A

2021
  • Temperature, water
    • Flow Regulation/Modification
    • Hydromodification

54 Miles

2006

5A

2019
  • Unknown Toxicity
    • Source Unknown

54 Miles

2008

5A

2021
  • This lisitng is for Invertibrate Toxicity. This listing is from Poe Reservoir Dam to Lake Oroville.


5

Feather River, South Fork (from Little Grass Valley Reservoir to Lake Oroville, Butte and Plumas Counties)

River & Stream

51811050  /  18020123
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

33 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

33 Miles

2008

5A

2021


5

Feather River, West Branch (from Griffin Gulch to Lake Oroville)

River & Stream

51860031  /  18020121
  • Unknown Toxicity
    • Source Unknown

37 Miles

2008

5A

2021


5

Five Mile Slough (Alexandria Place to Fourteen Mile Slough; in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040003
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

1.6 Miles

1998

5A

2006
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

1.6 Miles

1998

5A

2006
  • The agricultural source of diazinon for this waterbody is from aerial deposition.
  • Organic Enrichment/Low Dissolved Oxygen
    • Urban Runoff/Storm Sewers

1.6 Miles

2002

5A

2019
  • Pathogens
    • Other Urban Runoff
    • Recreational and Tourism Activities (non-boating)

1.6 Miles

2002

5B

2008


5

Folsom Lake

Lake & Reservoir

51423010  /  18020128
  • Mercury
    • Resource Extraction

11064 Acres

2008

5A

2019


5

French Camp Slough (confluence of Littlejohns and Lone Tree Creeks to San Joaquin River, San Joaquin Co.; partly in Delta Waterways, eastern portion)

River & Stream

53140000  /  18040002
  • Chlorpyrifos
    • Agriculture

6.3 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

6.3 Miles

2008

5A

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

6.3 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

6.3 Miles

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

6.3 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

6.3 Miles

2008

5A

2021


5

French Ravine

River & Stream

51632011  /  18020126
  • Bacteria
    • Land Disposal

1.7 Miles

1996

5A

2019


5

Fresno River (Above Hensley Reservoir to confl w Nelder Creek and Lewis Fork)

River & Stream

53931030  /  18040007
  • Low Dissolved Oxygen
    • Source Unknown

30 Miles

2008

5A

2021


5

Fresno Slough (from Graham Road to James Bypass, Fresno County)

Bay & Harbor

55180000  /  18030012
  • Chlorpyrifos
    • Agriculture

15 Acres

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

15 Acres

2008

5A

2021


5

Gilsizer Slough (from Yuba City to downstream of Township Road, Sutter County)

River & Stream

52030000  /  18020106
  • Diazinon
    • Agriculture

11 Miles

2008

5A

2021
  • Oxyfluorfen
    • Agriculture

11 Miles

2008

5A

2021
  • pH
    • Source Unknown

11 Miles

2008

5A

2021


5

Gold Run (Nevada County)

River & Stream

51720012  /  18020126
  • Mercury
    • Resource Extraction

1.9 Miles

2008

5A

2021


5

Gordon Slough (from headwaters and Goodnow Slough to Adams Canal, Yolo County)

River & Stream

51130012  /  18020110
  • Oxygen, Dissolved
    • Source Unknown

7.6 Miles

2008

5A

2021


5

Grasslands Marshes

Wetland, Freshwater

54120000  /  18040001
  • Electrical Conductivity
    • Agriculture

7962 Acres

1998

5A

2019
  • Selenium
    • Source Unknown

7962 Acres

1996

5B

2000


5

Grayson Drain (at outfall)

River & Stream

54110000  /  18040002
  • Escherichia coli (E. Coli)
    • Source Unknown

0.03 Miles

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

0.03 Miles

2006

5A

2019
  • Unknown Toxicity
    • Agriculture

0.03 Miles

2008

5A

2021


5

Hamilton Slough (from south of Thermalito Afterbay to south of Biggs, Butte County)

River & Stream

52040000  /  18020106
  • Unknown Toxicity
    • Source Unknown

7.9 Miles

2008

5A

2021


5

Harding Drain

River & Stream

53550000  /  18040002
  • .alpha.-BHC (Benzenehexachloride)
    • Agriculture

8.3 Miles

2008

5A

2021
  • Chlorpyrifos
    • Agriculture

8.3 Miles

1998

5A

2008
  • DDE
    • Source Unknown

8.3 Miles

2008

5A

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

8.3 Miles

2008

5A

2021
  • Hexachlorobenzene/ HCB
    • Source Unknown

8.3 Miles

2008

5A

2021
  • Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
    • Agriculture

8.3 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

8.3 Miles

1998

5A

2019
  • This listing is for algal toxicity only.


5

Hell Hole Reservoir

Lake & Reservoir

51445013  /  18020128
  • Mercury
    • Source Unknown

1370 Acres

2008

5A

2021


5

Hensley Lake

Lake & Reservoir

53932010  /  18040007
  • Oxygen, Dissolved
    • Source Unknown

1669 Acres

2008

5A

2021
  • pH
    • Source Unknown

1669 Acres

2008

5A

2021


5

Highline Canal (from Mustang Creek to Lateral No 8, Merced and Stanislaus Counties)

River & Stream

53560000  /  18040001
  • Chlorpyrifos
    • Agriculture

14 Miles

2008

5A

2021
  • Sediment Toxicity
    • Source Unknown

14 Miles

2008

5A

2021
  • Simazine
    • Agriculture

14 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

14 Miles

2008

5A

2021


5

Honcut Creek (Butte and Yuba Counties)

River & Stream

51540000  /  18020106
  • Oxygen, Dissolved
    • Source Unknown

10 Miles

2008

5A

2021


5

Horse Creek (Rising Star Mine to Shasta Lake)

River & Stream

50610000  /  18020005
  • Cadmium
    • Resource Extraction

0.52 Miles

1998

5A

2020
  • All resource extraction sources are abandoned mines.
  • Copper
    • Resource Extraction

0.52 Miles

1998

5A

2020
  • All resource extraction sources are abandoned mines.
  • Lead
    • Resource Extraction

0.52 Miles

1998

5A

2020
  • All resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

0.52 Miles

1998

5A

2020
  • All resource extraction sources are abandoned mines.
  • pH
    • Source Unknown

0.52 Miles

2008

5A

2021


5

Hospital Creek (San Joaquin and Stanislaus Counties)

River & Stream

54110000  /  18040002
  • DDE
    • Agriculture

20 Miles

2008

5A

2021
  • DDT
    • Agriculture

20 Miles

2008

5A

2021
  • Dieldrin
    • Agriculture

20 Miles

2008

5A

2021
  • Dimethoate
    • Agriculture

20 Miles

2008

5A

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

20 Miles

2008

5A

2021
  • Pyrethroids
    • Agriculture

20 Miles

2008

5A

2021
  • Salinity
    • Agriculture

20 Miles

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

20 Miles

2008

5A

2021
  • Trifluralin
    • Agriculture

20 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

20 Miles

2008

5A

2021


5

Humbug Creek

River & Stream

51732030  /  18020125
  • Copper
    • Resource Extraction

2.2 Miles

1992

5A

2020
  • All resource extraction sources are abandoned mines.
  • Mercury
    • Resource Extraction

2.2 Miles

1992

5A

2021
  • All resource extraction sources are abandoned mines.
  • Sedimentation/Siltation
    • Resource Extraction

2.2 Miles

1992

5A

2012
  • All resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

2.2 Miles

1992

5A

2020
  • All resource extraction sources are abandoned mines.


5

Hume Lake

Lake & Reservoir

55234281  /  18030010
  • Oxygen, Dissolved
    • Source Unknown

87 Acres

2008

5A

2021


5

Indian Valley Reservoir (Lake County)

Lake & Reservoir

51340020  /  18020116
  • Mercury
    • Resource Extraction

3469 Acres

2008

5A

2021


5

Ingalsbe Slough (tributary to Merced River, Merced County)

River & Stream

53560000  /  18040001
  • Unknown Toxicity
    • Source Unknown

9.6 Miles

2008

5A

2021


5

Ingram Creek (from confluence with Hospital Creek to Hwy 33 crossing)

River & Stream

54110000  /  18040002
  • Pyrethroids
    • Agriculture

2.8 Miles

2006

5A

2019
  • The pyrethroids of concern for this listing are bifenthrin, lamdba cyhalothrin, efenvalerate/fedvalerate, and permethrin.


5

Ingram Creek (from confluence with San Joaquin River to confluence with Hospital Creek)

River & Stream

54110000  /  18040002
  • Chlorpyrifos
    • Agricultural Return Flows

2.1 Miles

2002

5A

2008
  • DDE
    • Agriculture

2.1 Miles

2008

5A

2021
  • DDT
    • Agriculture

2.1 Miles

2008

5A

2021
  • Diazinon
    • Agricultural Return Flows

2.1 Miles

2002

5A

2008
  • Dieldrin
    • Agriculture

2.1 Miles

2008

5A

2021
  • Dimethoate
    • Agriculture

2.1 Miles

2008

5A

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

2.1 Miles

2008

5A

2021
  • Pyrethroids
    • Agriculture

2.1 Miles

2006

5A

2019
  • The pyrethroids of concern for this listing are bifenthrin, lamdba cyhalothrin, efenvalerate/fedvalerate, and permethrin.
  • Salinity
    • Agriculture

2.1 Miles

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

2.1 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

2.1 Miles

2008

5A

2021


5

Isabella Lake

Lake & Reservoir

55421010  /  18030003
  • Oxygen, Dissolved
    • Source Unknown

7710 Acres

2008

5A

2021
  • pH
    • Source Unknown

7710 Acres

2008

5A

2021


5

Jack Slough

River & Stream

51540000  /  18020106
  • Diazinon
    • Agriculture

14 Miles

2002

5A

2008
  • Unknown Toxicity
    • Source Unknown

14 Miles

2008

5A

2021


5

James Creek

River & Stream

51224010  /  18020117
  • Mercury
    • Resource Extraction

6.3 Miles

1992

5A

2017
  • Resource extraction sources are abandoned mines.
  • Nickel
    • Resource Extraction

6.3 Miles

1992

5A

2020
  • Resource extraction sources are abandoned mines.


5

Kanaka Creek

River & Stream

51742022  /  18020125
  • Arsenic
    • Resource Extraction

9.7 Miles

2002

5A

2020
  • All resource extraction sources are abandoned mines.


5

Kaseberg Creek (tributary to Pleasant Grove Creek, Placer County)

River & Stream

51922000  /  18020111
  • Pyrethroids
    • Urban Runoff/Storm Sewers

6.4 Miles

2008

5A

2021


5

Kaweah Lake

Lake & Reservoir

55344010  /  18030007
  • Mercury
    • Resource Extraction

1702 Acres

2002

5A

2019


5

Kaweah River (below Terminus Dam, Tulare County)

River & Stream

55810000  /  18030012
  • Unknown Toxicity
    • Source Unknown

9.4 Miles

2008

5A

2021
  • pH
    • Source Unknown

9.4 Miles

2008

5A

2021


5

Kaweah River, Lower (includes St Johns River)

River & Stream

55810000  /  18030012
  • Unknown Toxicity
    • Source Unknown

27 Miles

2008

5A

2021


5

Kellogg Creek (Los Vaqueros Reservoir to Discovery Bay; partly in Delta Waterways, western portion)

River & Stream

54300031  /  18040003
  • Escherichia coli (E. Coli)
    • Source Unknown

14 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

14 Miles

2008

5A

2021
  • Salinity
    • Source Unknown

14 Miles

2008

5A

2021
  • Sediment Toxicity
    • Source Unknown

14 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

14 Miles

2008

5A

2021


5

Kern River, Lower

River & Stream

55890012  /  18030012
  • pH
    • Source Unknown

105 Miles

2008

5A

2021


5

Keswick Reservoir (portion downstream from Spring Creek)

Lake & Reservoir

52440013  /  18020112
  • Cadmium
    • Resource Extraction

135 Acres

1990

5A

2020
  • Copper
    • Resource Extraction

135 Acres

1990

5A

2020
  • Zinc
    • Resource Extraction

135 Acres

1990

5A

2020


5

Kings River, Lower (Island Weir to Stinson and Empire Weirs)

River & Stream

55190000  /  18030012
  • Electrical Conductivity
    • Agriculture

36 Miles

2002

5A

2015
  • Molybdenum
    • Agriculture

36 Miles

2002

5A

2015
  • Toxaphene
    • Agriculture

36 Miles

2002

5A

2015


5

Kings River, Lower (Pine Flat Reservoir to Island Weir)

River & Stream

55180000  /  18030012
  • Unknown Toxicity
    • Source Unknown

76 Miles

2008

5A

2021


5

Knights Landing Ridge Cut (Yolo County)

River & Stream

52021000  /  18020109
  • Boron
    • Source Unknown

13 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

13 Miles

2008

5A

2021
  • Salinity
    • Source Unknown

13 Miles

2008

5A

2021


5

Little Backbone Creek, Lower

River & Stream

50620010  /  18020005
  • Acid Mine Drainage
    • Resource Extraction

0.95 Miles

1996

5A

2020
  • Cadmium
    • Agriculture

0.95 Miles

1992

5A

2020
  • All resource extraction sources are abandoned mines.
  • Copper
    • Resource Extraction

0.95 Miles

1992

5A

2020
  • All resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

0.95 Miles

1992

5A

2020
  • All resource extraction sources are abandoned mines.


5

Little Cow Creek (downstream from Afterthought Mine)

River & Stream

50733023  /  18020118
  • Cadmium
    • Resource Extraction

1.1 Miles

1994

5A

2020
  • Resource extraction sources are abandoned mines.
  • Copper
    • Resource Extraction

1.1 Miles

1994

5A

2020
  • Resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

1.1 Miles

1994

5A

2020
  • Resource extraction sources are abandoned mines.


5

Little Deer Creek

River & Stream

51720012  /  18020126
  • Mercury
    • Resource Extraction

4.1 Miles

2006

5A

2016


5

Little Grizzly Creek

River & Stream

51854031  /  18020122
  • Copper
    • Mill Tailings

9.4 Miles

1996

5A

2021
  • Zinc
    • Mill Tailings

9.4 Miles

1996

5A

2020


5

Littlejohns Creek

River & Stream

53140000  /  18040002
  • Escherichia coli (E. Coli)
    • Source Unknown

68 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

68 Miles

2008

5A

2021


5

Live Oak Slough

River & Stream

52030000  /  18020106
  • Diazinon
    • Agriculture

8.3 Miles

2008

5A

2021
  • Oxyfluorfen
    • Agriculture

8.3 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

8.3 Miles

2008

5A

2021


5

Lone Tree Creek

River & Stream

53140000  /  18040002
  • Ammonia
    • Dairies

15 Miles

1996

5A

2020
  • BOD, Biochemical oxygen demand
    • Dairies

15 Miles

1996

5A

2020
  • Chlorpyrifos
    • Agriculture

15 Miles

2008

5A

2011
  • Diuron
    • Agriculture

15 Miles

2008

5A

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

15 Miles

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

15 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

15 Miles

2008

5A

2021


5

Los Banos Creek (below Los Banos Reservoir, Merced County)

River & Stream

54120000  /  18040001
  • Boron
    • Source Unknown

31 Miles

2008

5A

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

31 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

31 Miles

2008

5A

2021


5

Main Drainage Canal

River & Stream

52040000  /  18020105
  • Diazinon
    • Agriculture

9.2 Miles

2006

5A

2019
  • Diuron
    • Agriculture

9.2 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

9.2 Miles

2008

5A

2021


5

Marsh Creek (Dunn Creek to Marsh Creek Reservoir)

River & Stream

54300023  /  18040003
  • Mercury
    • Resource Extraction

11 Miles

2006

5A

2015
  • All resource extraction sources are abandoned mines.
  • Metals
    • Resource Extraction

11 Miles

1994

5A

2020
  • All resource extraction sources are abandoned mines.


5

Marsh Creek (Marsh Creek Reservoir to San Joaquin River; partly in Delta Waterways, western portion)

River & Stream

54400000  /  18040003
  • Diazinon
    • Agriculture
    • Source Unknown
    • Urban Runoff/Storm Sewers

10 Miles

2008

5B

2007
  • Escherichia coli (E. Coli)
    • Source Unknown
    • Urban Runoff/Storm Sewers

10 Miles

2008

5A

2021
  • Mercury
    • Resource Extraction
    • Source Unknown
    • Urban Runoff/Storm Sewers

10 Miles

1994

5A

2015
  • All resource extraction sources are abandoned mines.
  • Sediment Toxicity
    • Agriculture
    • Source Unknown
    • Urban Runoff/Storm Sewers

10 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture
    • Source Unknown
    • Urban Runoff/Storm Sewers

10 Miles

2008

5A

2021


5

Marsh Creek Reservoir

Lake & Reservoir

54300023  /  18040003
  • Mercury
    • Resource Extraction

278 Acres

1988

5A

2015


5

McClure Reservoir (Mariposa County)

Lake & Reservoir

53722000  /  18040008
  • Mercury
    • Resource Extraction

5605 Acres

2008

5A

2021


5

Mendota Pool

Wetland, Freshwater

55120000  /  18030012
  • Mercury
    • Resource Extraction

3045 Acres

2008

5A

2021
  • Selenium
    • Agricultural Return Flows
    • Agriculture
    • Groundwater Withdrawal
    • Other

3045 Acres

2002

5A

2019
  • For 2006, selenium was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


5

Merced River, Lower (McSwain Reservoir to San Joaquin River)

River & Stream

53550000  /  18040001
  • Chlorpyrifos
    • Agriculture

50 Miles

1998

5A

2008
  • Diazinon
    • Agriculture

50 Miles

1998

5A

2008
  • Escherichia coli (E. Coli)
    • Source Unknown

50 Miles

2008

5A

2021
  • Group A Pesticides
    • Agriculture

50 Miles

1996

5A

2011
  • Mercury
    • Resource Extraction

50 Miles

2006

5A

2019
  • Temperature, water
    • Source Unknown

50 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

50 Miles

2008

5A

2021


5

Middle River (in Delta Waterways, southern portion)

River & Stream

54400000  /  18040003
  • Low Dissolved Oxygen
    • Hydromodification
    • Source Unknown

9.7 Miles

2002

5A

2019


5

Mile Long Pond (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • Resource Extraction

84 Acres

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

84 Acres

2008

5A

2021


5

Miles Creek (Merced County)

River & Stream

53580000  /  18040001
  • Diuron
    • Agriculture

13 Miles

2008

5A

2021


5

Mill Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Unknown Toxicity
    • Source Unknown

27 Miles

2008

5A

2021


5

Millerton Lake

Lake & Reservoir

54012000  /  18040006
  • Mercury
    • Resource Extraction

4366 Acres

2008

5A

2021


5

Miners Ravine (Placer County)

River & Stream

51424010  /  18020111
  • Oxygen, Dissolved
    • Source Unknown

9.4 Miles

2008

5A

2021


5

Mokelumne River, Lower (in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040005
  • Chlorpyrifos
    • Agriculture

34 Miles

2008

5A

2021
  • Copper
    • Resource Extraction

34 Miles

1992

5A

2020
  • Mercury
    • Resource Extraction

34 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

34 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

34 Miles

2008

5A

2021
  • Zinc
    • Resource Extraction

34 Miles

1992

5A

2020


5

Mormon Slough (Commerce Street to Stockton Deep Water Channel; partly in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040002
  • Organic Enrichment/Low Dissolved Oxygen
    • Urban Runoff/Storm Sewers

0.93 Miles

2002

5A

2008
  • Pathogens
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

0.93 Miles

2002

5A

2008


5

Mormon Slough (Stockton Diverting Canal to Commerce Street)

River & Stream

53130000  /  18040002
  • Pathogens
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

5.2 Miles

2002

5A

2008


5

Mormon Slough (from Stockton Diverting Canal to Bellota Weir--Calaveras River)

River & Stream

53130000  /  18040002
  • Chlorpyrifos
    • Source Unknown

11 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

11 Miles

2008

5A

2021


5

Morrison Creek

River & Stream

51911000  /  18020109
  • Diazinon
    • Agriculture

26 Miles

1998

5B

2003
  • Pentachlorophenol (PCP)
    • Source Unknown

26 Miles

2008

5A

2021
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

26 Miles

2008

5A

2021


5

Morrison Slough

River & Stream

52030000  /  18020106
  • Diazinon
    • Source Unknown

13 Miles

2008

5A

2021


5

Mosher Slough (downstream of I-5; in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040005
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

1.3 Miles

1998

5A

2006
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

1.3 Miles

1998

5A

2006
  • The agricultural source of diazinon for this waterbody is from aerial deposition.
  • Mercury
    • Source Unknown

1.3 Miles

2008

5A

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

1.3 Miles

2006

5A

2008
  • Pathogens
    • Urban Runoff/Storm Sewers

1.3 Miles

2006

5A

2008


5

Mosher Slough (upstream of I-5; partly in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040005
  • Pathogens
    • Urban Runoff/Storm Sewers

3.5 Miles

2002

5A

2008


5

Mountain House Creek (from Altamont Pass to Old River, Alameda and San Joaquin Counties; partly in Delta Waterways, southern portion)

River & Stream

54400000  /  18040003
  • Chloride
    • Source Unknown

11 Miles

2008

5A

2021
  • Salinity
    • Source Unknown

11 Miles

2008

5A

2021


5

Mud Creek (Butte County)

River & Stream

50420070  /  18020103
  • Unknown Toxicity
    • Source Unknown

15 Miles

2008

5A

2021


5

Mud Slough, North (downstream of San Luis Drain)

River & Stream

54120000  /  18040001
  • Boron
    • Agriculture

13 Miles

2008

5A

2019
  • Electrical Conductivity
    • Agriculture

13 Miles


5A

2019
  • Pesticides
    • Agriculture

13 Miles

2008

5A

2019
  • Selenium
    • Agriculture

13 Miles

2008

5B

2002
  • Unknown Toxicity
    • Agriculture

13 Miles

2008

5A

2021


5

Mud Slough, North (upstream of San Luis Drain)

River & Stream

54120000  /  18040001
  • Boron
    • Source Unknown

22 Miles

2008

5A

2019
  • Electrical Conductivity
    • Source Unknown

22 Miles


5A

2019
  • Escherichia coli (E. Coli)
    • Source Unknown

22 Miles

2008

5A

2021
  • Pesticides
    • Agriculture

22 Miles

2008

5A

2019
  • Unknown Toxicity
    • Source Unknown

22 Miles

2008

5A

2021


5

Mustang Creek (Merced County)

River & Stream

53560000  /  18040002
  • Chlorpyrifos
    • Agriculture

4.2 Miles

2008

5A

2021
  • Cis-permethrin
    • Agriculture

4.2 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

4.2 Miles

2008

5A

2021
  • Simazine
    • Agriculture

4.2 Miles

2008

5A

2021


5

Natoma, Lake

Lake & Reservoir

51921000  /  18020111
  • Mercury
    • Resource Extraction

485 Acres

2006

5A

2019


5

Natomas Cross Canal (Sutter County)

River & Stream

51922000  /  18020109
  • Mercury
    • Resource Extraction

5.8 Miles

2008

5A

2021


5

Natomas East Main Drainage Canal (aka Steelhead Creek, downstream of confluence with Arcade Creek)

River & Stream

51921000  /  18020109
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

3.5 Miles

1996

5A

2008
  • .
  • Mercury
    • Source Unknown

3.5 Miles

2008

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • Agriculture
    • Industrial Point Sources
    • Urban Runoff/Storm Sewers

3.5 Miles

1996

5A

2020
  • The agricultural source is from aerial deposition.


5

Natomas East Main Drainage Canal (aka Steelhead Creek, upstream of confluence with Arcade Creek)

River & Stream

51921000  /  18020111
  • PCBs (Polychlorinated biphenyls)
    • Agriculture
    • Industrial Point Sources
    • Urban Runoff/Storm Sewers

12 Miles

1996

5A

2019


5

New Bullards Bar Reservoir

Lake & Reservoir

51751011  /  18020125
  • Mercury
    • Resource Extraction

3864 Acres

2008

5A

2021


5

New Hogan Lake (Calaveras County)

Lake & Reservoir

53310011  /  18040011
  • Mercury
    • Resource Extraction

3180 Acres

2008

5A

2021


5

New Melones Reservoir

Lake & Reservoir

53421010  /  18040010
  • Mercury
    • Resource Extraction

1654 Acres

2008

5A

2021


5

Newman Wasteway

River & Stream

54120000  /  18040001
  • Boron
    • Agriculture

8.3 Miles

2008

5A

2021
  • Chlorpyrifos
    • Agriculture

8.3 Miles

2002

5A

2008
  • DDE
    • Source Unknown

8.3 Miles

2008

5A

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

8.3 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

8.3 Miles

2008

5A

2021
  • Salinity
    • Source Unknown

8.3 Miles

2008

5A

2021
  • Simazine
    • Agriculture

8.3 Miles

2008

5A

2021


5

Oak Run Creek

River & Stream

50733000  /  18020101
  • Fecal Coliform
    • Agriculture
    • Combined Sewer Overflow
    • Grazing-Related Sources
    • Natural Sources
    • Pasture Grazing-Upland

5.6 Miles

2002

5A

2012


5

Old River (San Joaquin River to Delta-Mendota Canal; in Delta Waterways, southern portion)

River & Stream

54400000  /  18040003
  • Chlorpyrifos
    • Source Unknown

15 Miles

2008

5A

2021
  • Low Dissolved Oxygen
    • Hydromodification
    • Source Unknown

15 Miles

2002

5A

2019
  • Salinity
    • Source Unknown

15 Miles

2008

5A

2021


5

Orestimba Creek (above Kilburn Road)

River & Stream

54110000  /  18040002
  • Azinphos-methyl (Guthion)
    • Agriculture

9.1 Miles

2002

5A

2008
  • Chlorpyrifos
    • Agriculture

9.1 Miles

1998

5A

2008
  • DDE
    • Agriculture

9.1 Miles

2002

5A

2011
  • DDT
    • Agriculture

9.1 Miles

2008

5A

2011
  • Diazinon
    • Agriculture

9.1 Miles

1998

5A

2008
  • Dieldrin
    • Agriculture

9.1 Miles

2008

5A

2011
  • Dimethoate
    • Agriculture

9.1 Miles

2008

5A

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

9.1 Miles

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

9.1 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

9.1 Miles

2008

5A

2021


5

Orestimba Creek (below Kilburn Road)

River & Stream

54110000  /  18040002
  • Azinphos-methyl (Guthion)
    • Agriculture

2.7 Miles

2002

5A

2008
  • Chlorpyrifos
    • Agriculture

2.7 Miles

1998

5B

2006
  • DDD
    • Agriculture

2.7 Miles

2008

5A

2011
  • DDE
    • Agriculture

2.7 Miles

2002

5A

2011
  • DDT
    • Agriculture

2.7 Miles

2008

5A

2011
  • Diazinon
    • Agriculture

2.7 Miles

1998

5A

2008
  • Dieldrin
    • Agriculture

2.7 Miles

2008

5A

2021
  • Dimethoate
    • Agriculture

2.7 Miles

2008

5A

2021
  • Diuron
    • Agriculture

2.7 Miles

2008

5A

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

2.7 Miles

2008

5A

2021
  • Malathion
    • Agriculture

2.7 Miles

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

2.7 Miles

2006

5A

2019
  • Unknown Toxicity
    • Agriculture

2.7 Miles

1992

5A

2019


5

Oroville Wildlife Area Fishing Pond (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Unknown Toxicity
    • Source Unknown

2.3 Acres

2008

5A

2021


5

Oroville, Lake

Lake & Reservoir

51812000  /  18020124
  • Mercury
    • Resource Extraction

15400 Acres

2008

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

15400 Acres

2008

5A

2021


5

Outside Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Unknown Toxicity
    • Source Unknown

15 Miles

2008

5A

2021


5

Oxbow Reservoir (Ralston Afterbay, El Dorado and Placer Counties)

Lake & Reservoir

51441010  /  18020128
  • Mercury
    • Resource Extraction

65 Acres

2008

5A

2021


5

Pacific Heights Pond, Lower (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Unknown Toxicity
    • Source Unknown

10 Acres

2008

5A

2021


5

Packwood Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Unknown Toxicity
    • Source Unknown

19 Miles

2008

5A

2021


5

Panoche Creek (Silver Creek to Belmont Avenue)

River & Stream

55112000  /  18040001
  • Mercury
    • Resource Extraction

18 Miles

1992

5A

2020
  • All resource extraction sources are abandoned mines.
  • Sediment Toxicity
    • Source Unknown

18 Miles

2008

5A

2021
  • Sedimentation/Siltation
    • Agriculture
    • Agriculture-grazing
    • Highway/Road/Bridge Construction
    • Natural Sources
    • Source Unknown

18 Miles

1996

5A

2007
  • Selenium
    • Agriculture

18 Miles

1998

5A

2019


5

Pardee Reservoir

Lake & Reservoir

53260091  /  18040005
  • Mercury
    • Resource Extraction

2185 Acres

2008

5A

2021


5

Pit River (from confluence of N and S forks to Shasta Lake)

River & Stream

52661080  /  18020003
  • Nutrients
    • Agriculture
    • Agriculture-grazing

123 Miles

1996

5A

2013
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture
    • Agriculture-grazing

123 Miles

1996

5A

2013
  • Temperature, water
    • Agriculture
    • Agriculture-grazing

123 Miles

1996

5A

2013


5

Pit River, North Fork

River & Stream

52652016  /  18020002
  • pH
    • Source Unknown

21 Miles

2008

5A

2021


5

Pit River, South Fork

River & Stream

52652080  /  18020002
  • Salinity
    • Source Unknown

34 Miles

2008

5A

2021
  • pH
    • Source Unknown

34 Miles

2008

5A

2021


5

Pixley Slough (San Joaquin County; partly in Delta Waterways, eastern portion)

River & Stream

53120000  /  18040005
  • Chlorpyrifos
    • Source Unknown

13 Miles

2008

5A

2021
  • Diazinon
    • Source Unknown

13 Miles

2008

5A

2022
  • Disulfoton
    • Agriculture

13 Miles

2008

5A

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

13 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

13 Miles

2008

5A

2021
  • Simazine
    • Source Unknown

13 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

13 Miles

2008

5A

2021


5

Pleasant Grove Creek

River & Stream

51922000  /  18020111
  • Oxygen, Dissolved
    • Source Unknown

20 Miles

2008

5A

2021
  • Pyrethroids
    • Urban Runoff/Storm Sewers

20 Miles

2008

5A

2021
  • This listing is for Pleasant Grove Creek upstream of Fiddyment Road.


5

Pleasant Grove Creek, South Branch

River & Stream

51922000  /  18020111
  • Oxygen, Dissolved
    • Source Unknown

7.3 Miles

2008

5A

2021
  • Pyrethroids
    • Urban Runoff/Storm Sewers

7.3 Miles

2008

5A

2021


5

Poso Slough

River & Stream

54120000  /  18040001
  • Sediment Toxicity
    • Source Unknown

14 Miles

2008

5A

2021


5

Putah Creek (Solano Lake to Putah Creek Sinks; partly in Delta Waterways, northwestern portion)

River & Stream

51120000  /  18020109
  • Boron
    • Source Unknown

27 Miles

2008

5A

2021
  • Mercury
    • Resource Extraction
    • Source Unknown

27 Miles

2002

5A

2017
  • All resource extraction sources are abandoned mines.


5

Ramona Lake (Fresno County)

Lake & Reservoir

54040018  /  18040006
  • Dimethoate
    • Agriculture

28 Acres

2008

5A

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

28 Acres

2008

5A

2021
  • Salinity
    • Source Unknown

28 Acres

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

28 Acres

2008

5A

2021


5

Rattlesnake Creek (at confluence w Mokelumne River, N Fork)

River & Stream

53260050  /  18040012
  • Escherichia coli (E. Coli)
    • Source Unknown

0.9 Miles

2008

5A

2021


5

Robinsons Riffle Pond (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • Resource Extraction

7.9 Acres

2008

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

7.9 Acres

2008

5A

2021


5

Rollins Reservoir

Lake & Reservoir

51634033  /  18020126
  • Mercury
    • Resource Extraction

774 Acres

2002

5A

2016


5

Rush Creek (Modoc County)

River & Stream

52664031  /  18020002
  • pH
    • Source Unknown

9.6 Miles

2008

5A

2021


5

Sacramento River (Keswick Dam to Cottonwood Creek)

River & Stream

52440014  /  18020102
  • Unknown Toxicity
    • Source Unknown

15 Miles

2002

5A

2019


5

Sacramento River ( Cottonwood Creek to Red Bluff)

River & Stream

50810000  /  18020103
  • Mercury
    • Resource Extraction

16 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

16 Miles

2002

5A

2019


5

Sacramento River ( Red Bluff to Knights Landing)

River & Stream

50420070  /  18020104
  • DDT
    • Agriculture

82 Miles

2008

5A

2021
  • Dieldrin
    • Agriculture

82 Miles

2008

5A

2021
  • Mercury
    • Resource Extraction

82 Miles

1992

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

82 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

82 Miles

1992

5A

2019


5

Sacramento River (Knights Landing to the Delta)

River & Stream

51000000  /  18020109
  • Chlordane
    • Agriculture

16 Miles

2008

5A

2021
  • DDT
    • Agriculture

16 Miles

2008

5A

2021
  • Dieldrin
    • Agriculture

16 Miles

2008

5A

2022
  • Mercury
    • Resource Extraction

16 Miles

2002

5A

2012
  • All resource extraction sources are abandoned mines.
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

16 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

16 Miles

2002

5A

2019


5

Sacramento Slough

River & Stream

51922000  /  18020106
  • Chlorpyrifos
    • Source Unknown

1.7 Miles

2008

5A

2021
  • Mercury
    • Source Unknown

1.7 Miles

1998

5A

2020
  • Oxygen, Dissolved
    • Source Unknown

1.7 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

1.7 Miles

2008

5A

2021
  • pH (low)
    • Source Unknown

1.7 Miles

2008

5A

2021


5

Salado Creek (Stanislaus County)

River & Stream

54210031  /  18040014
  • Escherichia coli (E. Coli)
    • Agriculture
    • Urban Runoff/Storm Sewers

9.4 Miles

2008

5A

2021
  • Salinity
    • Agriculture
    • Urban Runoff/Storm Sewers

9.4 Miles

2008

5A

2021


5

Salt Slough (upstream from confluence with San Joaquin River)

River & Stream

54120000  /  18040001
  • Boron
    • Agriculture

9.9 Miles

1996

5A

2019
  • Chlorpyrifos
    • Agriculture

9.9 Miles

1998

5B

2008
  • Electrical Conductivity
    • Agriculture

9.9 Miles

1998

5A

2019
  • Escherichia coli (E. Coli)
    • Source Unknown

9.9 Miles

2008

5A

2021
  • Mercury
    • Source Unknown

9.9 Miles

2008

5A

2021
  • Prometryn
    • Agriculture

9.9 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

9.9 Miles

1996

5A

2019


5

San Carlos Creek (downstream of New Idria Mine)

River & Stream

55911085  /  18040014
  • Mercury
    • Acid Mine Drainage
    • Resource Extraction

5.1 Miles

1998

5A

2020
  • All resource extraction sources are abandoned mines.


5

San Joaquin River ( Mendota Pool to Bear Creek)

River & Stream

54110000  /  18040001
  • Boron
    • Agriculture

88 Miles

2002

5A

2019
  • Chlorpyrifos
    • Agriculture

88 Miles

2002

5B

2007
  • DDT
    • Agriculture

88 Miles

2002

5A

2011
  • Diazinon
    • Agriculture

88 Miles

2002

5B

2007
  • Electrical Conductivity
    • Agriculture

88 Miles

1998

5A

2019
  • Group A Pesticides
    • Agriculture

88 Miles

2002

5A

2011
  • Unknown Toxicity
    • Source Unknown

88 Miles

1994

5A

2019


5

San Joaquin River (Bear Creek to Mud Slough)

River & Stream

54120000  /  18040001
  • Arsenic
    • Source Unknown

14 Miles

2008

5A

2021
  • Boron
    • Agriculture

14 Miles

2006

5A

2019
  • Chlorpyrifos
    • Agriculture

14 Miles

2006

5B

2007
  • DDT
    • Agriculture

14 Miles

2006

5A

2011
  • Electrical Conductivity
    • Agriculture

14 Miles

2006

5A

2019
  • Escherichia coli (E. Coli)
    • Source Unknown

14 Miles

2008

5A

2021
  • Group A Pesticides
    • Agriculture

14 Miles

2006

5A

2011
  • Mercury
    • Resource Extraction

14 Miles

2006

5A

2012
  • Unknown Toxicity
    • Source Unknown

14 Miles

2006

5A

2019


5

San Joaquin River ( Mud Slough to Merced River)

River & Stream

54110000  /  18040001
  • Boron
    • Agriculture

3 Miles

1996

5A

2019
  • Chlorpyrifos
    • Agriculture

3 Miles

2006

5B

2007
  • DDT
    • Agriculture

3 Miles

2006

5A

2011
  • Diazinon
    • Agriculture

3 Miles

2006

5B

2007
  • Electrical Conductivity
    • Agriculture

3 Miles

2006

5A

2019
  • Escherichia coli (E. Coli)
    • Source Unknown

3 Miles

2008

5A

2022
  • Group A Pesticides
    • Agriculture

3 Miles

2006

5A

2011
  • Mercury
    • Resource Extraction

3 Miles

2006

5A

2012
  • Selenium
    • Agriculture

3 Miles

2006

5B

2002
  • Unknown Toxicity
    • Source Unknown

3 Miles

2006

5A

2019


5

San Joaquin River ( Merced River to Tuolumne River)

River & Stream

54110000  /  18040001
  • .alpha.-BHC (Benzenehexachloride)
    • Source Unknown

29 Miles

2008

5A

2022
  • Boron
    • Agriculture

29 Miles

2002

5B

2007
  • Chlorpyrifos
    • Agriculture

29 Miles

2006

5B

2007
  • DDE
    • Agriculture

29 Miles

2008

5A

2011
  • DDT
    • Agriculture

29 Miles

2002

5A

2011
  • Electrical Conductivity
    • Agriculture

29 Miles

1998

5A

2007
  • Group A Pesticides
    • Agriculture

29 Miles

2002

5A

2011
  • Mercury
    • Resource Extraction

29 Miles

2006

5A

2012
  • Temperature, water
    • Source Unknown

29 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

29 Miles

2002

5A

2019


5

San Joaquin River ( Tuolumne River to Stanislaus River)

River & Stream

53530000  /  18040002
  • Chlorpyrifos
    • Agriculture

8.4 Miles

2006

5B

2007
  • DDT
    • Agriculture

8.4 Miles

2006

5A

2011
  • Diazinon
    • Agriculture

8.4 Miles

2006

5B

2007
  • Electrical Conductivity
    • Agriculture

8.4 Miles

1998

5A

2007
  • Group A Pesticides
    • Agriculture

8.4 Miles

1994

5A

2011
  • Mercury
    • Resource Extraction

8.4 Miles

2006

5A

2012
  • Temperature, water
    • Source Unknown

8.4 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture

8.4 Miles

1994

5A

2019


5

San Joaquin River (Friant Dam to Mendota Pool)

River & Stream

54510000  /  18040006
  • Invasive Species
    • Source Unknown

70 Miles

2006

5A

2019


5

San Joaquin River (Stanislaus River to Delta Boundary)

River & Stream

54400000  /  18040002
  • Chlorpyrifos
    • Agriculture

3 Miles

2006

5B

2007
  • DDE
    • Agriculture

3 Miles

2008

5A

2011
  • DDT
    • Agriculture

3 Miles

2006

5A

2011
  • Diuron
    • Agriculture

3 Miles

2008

5A

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

3 Miles

2008

5A

2021
  • Group A Pesticides
    • Agriculture

3 Miles

2006

5A

2011
  • Mercury
    • Resource Extraction

3 Miles

2006

5A

2012
  • Temperature, water
    • Source Unknown

3 Miles

2008

5A

2021
  • Toxaphene
    • Source Unknown

3 Miles

2006

5A

2019
  • Unknown Toxicity
    • Agriculture

3 Miles

2006

5A

2019


5

Sand Creek (Colusa County)

River & Stream

52021000  /  18020104
  • Oxygen, Dissolved
    • Source Unknown

20 Miles

2008

5A

2021


5

Sand Creek (tributary to Marsh Creek, Contra Costa County; partly in Delta Waterways, western portion)

River & Stream

54300011  /  18040003
  • Chlorpyrifos
    • Source Unknown

10 Miles

2008

5A

2021
  • DDE
    • Source Unknown

10 Miles

2008

5A

2021
  • DDT
    • Source Unknown

10 Miles

2008

5A

2021
  • Dieldrin
    • Source Unknown

10 Miles

2008

5A

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

10 Miles

2008

5A

2021
  • Salinity
    • Source Unknown

10 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

10 Miles

2008

5A

2021


5

Scotts Flat Reservoir

Lake & Reservoir

51720011  /  18020125
  • Mercury
    • Resource Extraction

660 Acres

2002

5A

2016


5

Shasta Lake

Lake & Reservoir

50610000  /  18020005
  • Mercury
    • Resource Extraction

27335 Acres

2008

5A

2021


5

Shasta Lake (area where West Squaw Creek enters)

Lake & Reservoir

50620010  /  18020005
  • Cadmium
    • Resource Extraction

20 Acres

1990

5A

2020
  • Copper
    • Resource Extraction

20 Acres

1990

5A

2020
  • Zinc
    • Resource Extraction

20 Acres

1990

5A

2020


5

Simmerly Slough (Yuba County)

River & Stream

51540000  /  18020106
  • Unknown Toxicity
    • Source Unknown

5.5 Miles

2008

5A

2021


5

Slab Creek Reservoir (El Dorado County)

Lake & Reservoir

51432013  /  18020129
  • Mercury
    • Resource Extraction

242 Acres

2008

5A

2021


5

Smith Canal (in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040003
  • Organic Enrichment/Low Dissolved Oxygen
    • Urban Runoff/Storm Sewers

2.4 Miles

2002

5A

2008
  • Organophosphorus Pesticides
    • Urban Runoff/Storm Sewers

2.4 Miles

2002

5A

2006
  • Pathogens
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

2.4 Miles

2002

5A

2008


5

Solano, Lake

Lake & Reservoir

51120000  /  18020109
  • Mercury
    • Resource Extraction

15 Acres

2008

5A

2017


5

South Cow Creek

River & Stream

50731000  /  18020118
  • Fecal Coliform
    • Agriculture
    • Grazing-Related Sources
    • Other

7.9 Miles

2002

5A

2012


5

Spring Creek (Colusa County)

River & Stream

56120020  /  18020104
  • Aldicarb
    • Source Unknown

13 Miles

2008

5A

2021
  • Chlorpyrifos
    • Source Unknown

13 Miles

2008

5A

2021
  • Diazinon
    • Source Unknown

13 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

13 Miles

2008

5A

2021
  • Salinity
    • Source Unknown

13 Miles

2008

5A

2021
  • Sediment Toxicity
    • Source Unknown

13 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

13 Miles

2008

5A

2021


5

Spring Creek, Lower (Iron Mountain Mine to Keswick Reservoir)

River & Stream

52440010  /  18020112
  • Acid Mine Drainage
    • Resource Extraction

2.6 Miles

1996

5A

2020
  • All resource extraction sources are abandoned mines.
  • Cadmium
    • Resource Extraction

2.6 Miles

1996

5A

2020
  • All resource extraction sources are abandoned mines.
  • Copper
    • Resource Extraction

2.6 Miles

1996

5A

2020
  • All resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

2.6 Miles

1996

5A

2020
  • All resource extraction sources are abandoned mines.


5

Stanislaus River, Lower

River & Stream

53530000  /  18040002
  • Chlorpyrifos
    • Agriculture

59 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

59 Miles

1998

5A

2008
  • Group A Pesticides
    • Agriculture

59 Miles

1998

5A

2011
  • Mercury
    • Resource Extraction

59 Miles

2002

5A

2020
  • Temperature, water
    • Source Unknown

59 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

59 Miles

1998

5A

2019


5

Stone Corral Creek

River & Stream

56130030  /  18020104
  • Oxygen, Dissolved
    • Source Unknown

22 Miles

2008

5A

2021


5

Stony Creek

River & Stream

52021000  /  18020115
  • Chlorpyrifos
    • Source Unknown

42 Miles

2008

5A

2021
  • Diuron
    • Source Unknown

42 Miles

2008

5A

2021
  • Sediment Toxicity
    • Source Unknown

42 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

42 Miles

2008

5A

2021
  • pH
    • Source Unknown

42 Miles

2008

5A

2021


5

Stony Gorge Reservoir

Lake & Reservoir

52222000  /  18020115
  • Mercury
    • Source Unknown

1411 Acres

2008

5A

2021


5

Strong Ranch Slough

River & Stream

51921000  /  18020111
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

6.4 Miles

1998

5B

2004
  • Diazinon
    • Agriculture
    • Urban Runoff/Storm Sewers

6.4 Miles

1998

5B

2004
  • The agricultural source of diazinon for these waterbodies is from aerial deposition.
  • Pyrethroids
    • Urban Runoff/Storm Sewers

6.4 Miles

2008

5A

2021


5

Success Lake

Lake & Reservoir

55512058  /  18030012
  • pH
    • Source Unknown

2486 Acres

2008

5A

2021


5

Sucker Run (Butte County)

River & Stream

51822023  /  18020123
  • Unknown Toxicity
    • Source Unknown

11 Miles

2008

5A

2021


5

Sullivan Creek (from Phoenix Reservoir to Don Pedro Lake, Tuolumne County)

River & Stream

53631022  /  18040009
  • Escherichia coli (E. Coli)
    • Source Unknown

11 Miles

2008

5A

2021


5

Sulphur Creek (Colusa County)

River & Stream

51320024  /  18020116
  • Mercury
    • Resource Extraction

14 Miles

1996

5A

2009
  • All resource extraction sources are abandoned mines.


5

Sutter Bypass

River & Stream

52030000  /  18020109
  • Mercury
    • Resource Extraction

19 Miles

2008

5A

2021


5

Sycamore Slough (Yolo County)

River & Stream

52010000  /  18020104
  • Oxygen, Dissolved
    • Source Unknown

17 Miles

2008

5A

2021


5

Temple Creek

River & Stream

53140000  /  18040002
  • Ammonia
    • Dairies

10 Miles

1996

5A

2020
  • Electrical Conductivity
    • Dairies

10 Miles

1996

5A

2020


5

Thermalito Afterbay

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • Resource Extraction

3863 Acres

2008

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

3863 Acres

2008

5A

2021


5

Thermalito Forebay

Lake & Reservoir

51540000  /  18020106
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

538 Acres

2008

5A

2021


5

Tom Paine Slough (in Delta Waterways, southern portion)

River & Stream

54400000  /  18040003
  • Chloride
    • Source Unknown

14 Miles

2008

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

14 Miles

2008

5A

2021
  • Salinity
    • Source Unknown

14 Miles

2008

5A

2021


5

Town Creek

River & Stream

50620010  /  18020005
  • Cadmium
    • Resource Extraction

0.98 Miles

1996

5A

2020
  • All resource extraction sources are abandoned mines.
  • Copper
    • Resource Extraction

0.98 Miles

1996

5A

2020
  • All resource extraction sources are abandoned mines.
  • Lead
    • Resource Extraction

0.98 Miles

1996

5A

2020
  • All resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

0.98 Miles

1996

5A

2020
  • All resource extraction sources are abandoned mines.


5

Tule Canal (Yolo County)

River & Stream

51120000  /  18020109
  • Boron
    • Agriculture
    • Natural Sources

11 Miles

2008

5A

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

11 Miles

2008

5A

2021
  • Fecal Coliform
    • Agriculture
    • Source Unknown

11 Miles

2008

5A

2021
  • Salinity
    • Agriculture

11 Miles

2008

5A

2021


5

Tuolumne River, Lower (Don Pedro Reservoir to San Joaquin River)

River & Stream

53550000  /  18040002
  • Chlorpyrifos
    • Agriculture

60 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

60 Miles

2002

5A

2010
  • Group A Pesticides
    • Agriculture

60 Miles

2006

5A

2011
  • Mercury
    • Resource Extraction

60 Miles

2008

5A

2021
  • Temperature, water
    • Source Unknown

60 Miles

2008

5A

2021
  • Unknown Toxicity
    • Source Unknown

60 Miles

2006

5A

2022


5

Turner Slough (Merced County)

River & Stream

53570000  /  18040001
  • Escherichia coli (E. Coli)
    • Agriculture

3.1 Miles

2008

5A

2021


5

Ulatis Creek (Solano County)

River & Stream

51110000  /  18020109
  • Chlorpyrifos
    • Agriculture

17 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

17 Miles

2008

5A

2021


5

Wadsworth Canal

River & Stream

52030000  /  18020106
  • Chlorpyrifos
    • Agriculture

16 Miles

2008

5A

2021
  • Diazinon
    • Agriculture

16 Miles

2006

5A

2021


5

West Squaw Creek (below Balaklala Mine)

River & Stream

50620010  /  18020005
  • Cadmium
    • Resource Extraction

2 Miles

2006

5A

2020
  • All resource extraction sources are abandoned mines.
  • Copper
    • Resource Extraction

2 Miles

2006

5A

2020
  • All resource extraction sources are abandoned mines.
  • Lead
    • Resource Extraction

2 Miles

2006

5A

2019
  • All resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

2 Miles

2006

5A

2019
  • All resource extraction sources are abandoned mines.


5

Westley Wasteway (Stanislaus County)

Lake & Reservoir

54110000  /  18040002
  • Chlorpyrifos
    • Agriculture

4 Acres

2008

5A

2021
  • Dimethoate
    • Agriculture

4 Acres

2008

5A

2021
  • Escherichia coli (E. Coli)
    • Agriculture

4 Acres

2008

5A

2021
  • Sediment Toxicity
    • Agriculture

4 Acres

2008

5A

2021


5

Whiskeytown Lake (areas near Oak Bottom, Brandy Creek Campgrounds and Whiskeytown)

Lake & Reservoir

52463010  /  18020112
  • Mercury
    • Resource Extraction

98 Acres

2008

5A

2021


5

Wildwood, Lake (Nevada County)

Lake & Reservoir

51720020  /  18020125
  • Mercury
    • Resource Extraction

289 Acres

2008

5A

2021


5

Willow Creek (Lassen County, Central Valley)

River & Stream

52661072  /  18020002
  • Escherichia coli (E. Coli)
    • Source Unknown

23 Miles

2008

5A

2021
  • pH
    • Source Unknown

23 Miles

2008

5A

2021


5

Willow Creek (Madera County)

River & Stream

54021051  /  18040006
  • Temperature, water
    • Source Unknown

6.2 Miles

2006

5A

2019


5

Willow Creek (Shasta County, below Greenhorn Mine to Clear Creek)

River & Stream

52463010  /  18020112
  • Acid Mine Drainage
    • Resource Extraction

4 Miles

1998

5A

2019
  • All resource extraction sources are abandoned mines.
  • Copper
    • Resource Extraction

4 Miles

1998

5A

2019
  • All resource extraction sources are abandoned mines.
  • Zinc
    • Resource Extraction

4 Miles

1998

5A

2019
  • All resource extraction sources are abandoned mines.


5

Willow Slough (Yolo County)

River & Stream

51120000  /  18020109
  • Boron
    • Agriculture
    • Natural Sources

10 Miles

2008

5A

2021


5

Willow Slough Bypass (Yolo County)

River & Stream

51120000  /  18020109
  • Boron
    • Agriculture
    • Natural Sources

6.2 Miles

2008

5A

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

6.2 Miles

2008

5A

2021
  • Fecal Coliform
    • Source Unknown

6.2 Miles

2008

5A

2021


5

Winters Canal (Yolo County)

River & Stream

51120000  /  18020109
  • Diazinon
    • Agriculture

15 Miles

2008

5A

2021


5

Wolf Creek (Nevada)

River & Stream

51632010  /  18020126
  • Fecal Coliform
    • Source Unknown

23 Miles

2002

5A

2019


5

Woods Creek (Tuolumne County)

River & Stream

53631041  /  18040009
  • Escherichia coli (E. Coli)
    • Source Unknown

15 Miles

2008

5A

2021


5

Yankee Slough (Placer and Sutter Counties)

River & Stream

51510000  /  18020108
  • Chlorpyrifos
    • Agriculture

13 Miles

2008

5A

2021
  • Unknown Toxicity
    • Agriculture
    • Source Unknown

13 Miles

2008

5A

2021


5

Yuba River, Lower

River & Stream

51530000  /  18020106
  • Mercury
    • Resource Extraction

10 Miles

2008

5A

2021


5

Yuba River, Middle Fork

River & Stream

51751011  /  18020125
  • Mercury
    • Resource Extraction

45 Miles

2008

5A

2021
  • This listing is from Bear Creek to the North Yuba River.


5

Yuba River, North Fork

River & Stream

51751011  /  18020125
  • Mercury
    • Resource Extraction

37 Miles

2008

5A

2021
  • This listing is from New Bullards Bar Reservoir dam to Lake Englebright.


5

Yuba River, South Fork (Spaulding Reservoir to Englebright Reservoir)

River & Stream

51732031  /  18020126
  • Mercury
    • Resource Extraction

48 Miles

2008

5A

2021
  • This listing is from Rucker Creek to Lake Englebright.
  • Temperature, water
    • Source Unknown

48 Miles

2008

5A

2021