All Regional Boards CATEGORY 5 Draft 2026 Integrated Report (CWA Section 303(d) List / 305(b) Report)
2026 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**  TMDL PRIORITY***  DATE****

1

Bodega HU, Bodega Harbor HA

Bay & Harbor

1115.100003,1115.210000,1115.220000,1115.300002  /  18010111
  • Invasive Species
    • A Source Unknown

1318 Acres

2006

5A

Low

    This listing applies to the entire waterbody.


1

Bodega HU, Estero Americano HA, Americano Creek

River & Stream

1115.300001,1115.300002,1115.300003  /  18010111
  • Nutrients
    • A Source Unknown

38 Miles

1996

5A

Low

    This listing applies to the entire waterbody.


1

Bodega HU, Estero Americano HA, estuary

Estuary

1115.300001,1115.300002  /  18010111
  • Nutrients
    • A Source Unknown

199 Acres

1996

5A

Low

    This listing applies to the entire waterbody.
  • Sediment
    • A Source Unknown

199 Acres

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • A Source Unknown

199 Acres

1992

5A

Low

    This listing applies to the entire waterbody.


1

Bodega HU, Estero de San Antonio HA, Stemple Creek/Estero de San Antonio

River & Stream

1115.400001,1115.400002,1115.400003  /  18010111
  • Nutrients
    • A Source Unknown

74 Miles

1800

5A

Low

    This listing applies to the entire waterbody.
  • Sediment
    • A Source Unknown

74 Miles

2006

5A

Low

    This listing applies to the entire waterbody.


1

Cape Mendocino HU, Mattole River HA, Mattole River Watershed

River & Stream

1112.300101,1112.300103,1112.300202,1112.300301,1112.300402,1112.300502,1112.300503,1112.300504,1112.300601,1112.300701  /  18010108
  • Sediment
    • A Source Unknown

694 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Grazing-Related Sources
    • Logging Road Construction/Maintenance
    • Natural Sources
    • Removal of Riparian Vegetation
    • Road Construction
    • Silviculture

694 Miles

1994

5B


2003
  • Specific Conductivity
    • A Source Unknown

694 Miles

2010

5A

Low

    This listing applies to the Mattole River estuary.
  • Temperature, water
    • Removal of Riparian Vegetation

694 Miles

1996

5B


2002
    This listing applies to the entire waterbody.


1

Caspar Headlands State Beach

Coastal & Bay Shoreline

1113.300404,1113.300405  /  18010108
  • Indicator Bacteria
    • A Source Unknown

0.19 Miles

2010

5A

Low

    This listing applies to the entire waterbody.


1

Clam Beach (near Mad River mouth)

Coastal & Bay Shoreline

1109.100101  /  18010102
  • Indicator Bacteria
    • A Source Unknown

2.3 Miles

2012

5A

Low

    This listing applies to the entire water body.


1

Clam Beach (near Strawberry Creek)

Coastal & Bay Shoreline

1108.200002,1109.100200,1109.100300  /  18010102
  • Indicator Bacteria
    • A Source Unknown

1.3 Miles

2006

5A

Low

    This listing applies to the entire water body.


1

Copco Lake

Lake & Reservoir

1105.380201,1105.380202  /  18010206
  • Cyanobacteria hepatotoxic microcystins
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Road Construction
    • Silviculture

977 Acres

2006

5B


2010
    This listing applies to the Copco 1 and Copco 2 Reservoirs.
  • Mercury
    • A Source Unknown

977 Acres

2010

5A

Low

    This listing applies to the entire waterbody.


1

Dead Lake

Lake & Reservoir

1103.110003  /  18010101
  • Mercury
    • A Source Unknown

25 Acres

2012

5A

Low

    This listing applies to the entire waterbody.


1

Eel River HU, Lower Eel River HA (includes the Eel River Delta)

River & Stream

1111.110101,1111.110102,1111.110103,1111.110201,1111.110202,1111.110203,1111.110301,1111.110302,1111.110303,1111.120101,(Total Count: 20)  /  18010105
  • Aluminum
    • A Source Unknown

1117 Miles

2010

5A

Low

    This listing only applies to the mainstem Eel River.
  • Oxygen, Dissolved
    • A Source Unknown

1117 Miles

2010

5A

Low

    This listing only applies to McNulty Slough, which lies within the Eel River HU, Lower Eel River HA (includes the Eel River Delta) water body.
  • Sediment
    • A Source Unknown

1117 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • A Source Unknown

1117 Miles

1994

5B


2007
  • Temperature, water
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

1117 Miles

1996

5B


2007
    This listing does not apply to McNulty Slough, which lies within the Eel River HU, Lower Eel River HA (includes the Eel River Delta) water body.


1

Eel River HU, Middle Fork HA, Eden Valley and Round Valley HSAs

River & Stream

1111.620602,1111.710101,1111.710102,1111.710204,1111.710404,1111.710406,1111.720201,1111.720202,1111.720400,1111.740402  /  18010103
  • Aluminum
    • A Source Unknown

2706 Miles

2010

5A

Low

    This listing applies to the entire waterbody.
  • Sediment
    • A Source Unknown

2706 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

2706 Miles

1994

5B


2003
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Nonpoint Source
    • Removal of Riparian Vegetation

2706 Miles

1996

5B


2003
    This listing applies to the entire waterbody.


1

Eel River HU, Middle Main HA

River & Stream

1111.320104,1111.410102,1111.410303,1111.410501,1111.420101,1111.420102,1111.420203,1111.420601,1111.420604,1111.500605  /  18010103
  • Aluminum
    • A Source Unknown

1588 Miles

2010

5A

Low

    This listing applies to the entire waterbody.
  • Sediment
    • A Source Unknown

1588 Miles

2026

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

1588 Miles

1994

5B


2005
  • Temperature, water
    • A Source Unknown

1588 Miles

1996

5B


2005
    This listing for temperature impairment only applies to the tributaries to the Middle Main Eel River (from Dos Rios to the South Fork).


1

Eel River HU, North Fork HA, Lower North Fork Eel River Watershed

River & Stream

1111.420402,1111.500101,1111.500102,1111.500104,1111.500203,1111.500601,1111.500602,1111.500603,1111.500605,1111.500607  /  18010104
  • Aluminum
    • A Source Unknown

606 Miles

2010

5A

Low

    This listing applies to the entire waterbody.
  • Oxygen, Dissolved
    • A Source Unknown

606 Miles

2014

5A

Low

    This listing only applies to Asbill Creek.
  • Sediment
    • A Source Unknown

606 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • A Source Unknown

606 Miles

1994

5B


2002
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

606 Miles

1996

5B


2002
    This listing applies to the Lower North Fork Eel River Watershed in the area that drains into the North Fork Eel River south of the Six Rivers National Forest boundary with the River.
  • pH
    • A Source Unknown

606 Miles

2014

5A

Low

    This listing only applies to the North Fork Eel River.


1

Eel River HU, South Fork HA

River & Stream

1111.310202,1111.320101,1111.320102,1111.320103,1111.320201,1111.320203,1111.320301,1111.320302,1111.320806,1111.330102  /  18010108
  • Aluminum
    • A Source Unknown

1525 Miles

2010

5A

Low

    This listing only applies to the mainstem South Fork Eel River.
  • Anatoxin-A
    • A Source Unknown

1525 Miles

2026

5A

Low

    This listing applies to the mainstem South Fork Eel River.
  • Benthic Community Effects
    • A Source Unknown

1525 Miles

2014

5A

Low

  • Microcystins
    • A Source Unknown

1525 Miles

2026

5A

Low

    This listing applies to the mainstem South Fork Eel River.
  • Sediment
    • A Source Unknown

1525 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • A Source Unknown

1525 Miles

1994

5B


1999
  • Specific Conductivity
    • A Source Unknown

1525 Miles

2010

5A

Low

    This listing applies to the mainstem South Fork Eel River.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Logging Road Construction/Maintenance
    • Removal of Riparian Vegetation
    • Silviculture

1525 Miles

1996

5B


1999
    This listing does not apply to Dutch Charlie Creek or Redwood Creek, both which lie within the Eel River HU, South Fork HA water body.
  • Total Dissolved Solids
    • A Source Unknown

1525 Miles

2012

5A

Low

    This listing only applies to the mainstem of the South Fork Eel River within the Eel River HU, South Fork HA water body.


1

Eel River HU, Upper Main HA (Includes Tomki Creek)

River & Stream

1111.630201,1111.630202,1111.630203,1111.630401,1111.630501,1111.630502,1111.630503,1111.630603,1111.630704,1111.630706  /  18010110
  • Aluminum
    • A Source Unknown

3298 Miles

2010

5A

Low

    This listing only applies to the mainstem Eel River in the "Eel River HU, Upper Main HA (Includes Tomki Creek)" water body.
  • Anatoxin-A
    • A Source Unknown

3298 Miles

2026

5A

Low

    This listing applies to the mainstem Eel River.
  • Benthic Community Effects
    • A Source Unknown

3298 Miles

2014

5A

Low

  • Microcystins
    • A Source Unknown

3298 Miles

2026

5A

Low

    This listing applies to the mainstem Eel River.
  • Oxygen, Dissolved
    • A Source Unknown

3298 Miles

2012

5A

Low

    This listing only applies to Bachtel Creek, Berry Creek, Davis Creek, Old Outlet Creek, Outlet Creek, and Upp Creek.
  • Saxitoxins
    • A Source Unknown

3298 Miles

2026

5A

Low

    This listing applies to the mainstem Eel River.
  • Sediment
    • A Source Unknown

3298 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Agriculture-grazing
    • Construction/Land Development
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Highway/Road/Bridge Construction
    • Logging Road Construction/Maintenance
    • Removal of Riparian Vegetation
    • Silvicultural Point Sources
    • Silviculture
    • Streambank Modification/Destabilization

3298 Miles

1994

5B


2004
  • Specific Conductivity
    • A Source Unknown

3298 Miles

2010

5A

Low

    This listing applies to Baechtel Creek and Blue Slides Creek.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

3298 Miles

1996

5B


2004
    This listing applies to the entire waterbody.
  • Total Dissolved Solids
    • A Source Unknown

3298 Miles

2012

5A

Low

    This listing applies to Outlet Creek.
  • Turbidity
    • A Source Unknown

3298 Miles

2026

5A

Low

    This listing applies to Berry Creek, Davis Creek, Old Outlet Creek, and Outlet Creek.


1

Eel River HU, Upper Main HA, Lake Pillsbury HSA, Lake Pillsbury

Lake & Reservoir

1111.630401,1111.630501,1111.630502,1111.630704  /  18010103
  • Mercury
    • A Source Unknown

1947 Acres

1998

5A

Low

    This list applies to the entire waterbody.


1

Eel River HU, Van Duzen River HA

River & Stream

1111.130101,1111.220401,1111.220403,1111.220501,1111.220505,1111.220604,1111.230102,1111.230104,1111.230201,1111.230204  /  18010105
  • Aluminum
    • A Source Unknown

1294 Miles

2010

5A

Low

    This list applies to the entire waterbody.
  • Benthic Community Effects
    • A Source Unknown

1294 Miles

2014

5A

Low

  • Sediment
    • A Source Unknown

1294 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Harvesting, Restoration, Residue Management
    • Logging Road Construction/Maintenance
    • Natural Sources
    • Removal of Riparian Vegetation
    • Silvicultural Point Sources
    • Silviculture
    • Streambank Modification/Destabilization

1294 Miles

1994

5B


1999


1

Eureka Plain HU, Elk River Watershed, Upper Elk River

River & Stream

1110.000201,1110.000202,1110.000301,1110.000302,1110.000402  / 
  • Aluminum
    • A Source Unknown

96 Miles

2012

5A

Low

    This listing only applies to the Mainstem Elk River, South Fork Elk River, and North Fork Elk River.
  • Sediment
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

96 Miles

2014

5B


2018
    This listing applies to the entire waterbody.


1

Eureka Plain HU, Freshwater Creek

River & Stream

1110.000101,1110.000102,1110.000103,1110.000104,1110.000105  /  18010105
  • Aluminum
    • A Source Unknown

114 Miles

2010

5A

Low

    This listing only applies to the mainstem of Freshwater Creek.
  • Benthic Community Effects
    • A Source Unknown

114 Miles

2014

5A

Low

  • Sediment
    • A Source Unknown

114 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • A Source Unknown

114 Miles

1998

5A

Low

    This listing applies to the entire waterbody.


1

Eureka Plain HU, Humboldt Bay

Bay & Harbor

1110.000105,1110.000106,1110.000107,1110.000401,1110.000402,1110.000502,1110.000503,1110.000601,1110.000602,1110.000603,(Total Count: 11)  /  18010105
  • Dioxin Toxic Equivalents
    • A Source Unknown

16075 Acres

2006

5A

Low

  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

16075 Acres

2026

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

16075 Acres

2002

5A

Low

    This listing applies to the entire waterbody.


1

Eureka Plain HU, Jacoby Creek watershed

River & Stream

1110.000503,1110.000504  /  18010102
  • Aluminum
    • A Source Unknown

28 Miles

2010

5A

Low

    This listing applies to the entire waterbody.
  • Sediment
    • A Source Unknown

28 Miles

2002

5A

Low

    This listing applies to the entire waterbody.


1

Eureka Plain HU, Jolly Giant Creek

River & Stream

1110.000501  /  18010102
  • Indicator Bacteria
    • A Source Unknown

2.1 Miles

2012

5A

Low



1

Eureka Plain HU, Salmon Creek

River & Stream

1110.000602,1110.000604,1110.000605  /  18010105
  • Aluminum
    • A Source Unknown

33 Miles

2010

5A

Low

    This listing applies to the entire waterbody.
  • Manganese
    • A Source Unknown

33 Miles

2014

5A

Low

    This listing only applies to the mainstem of Salmon Creek.


1

Greenwood State Beach

Coastal & Bay Shoreline

1113.500707,1113.610001,1113.610002,1113.620001,1113.630002  / 
  • Indicator Bacteria
    • A Source Unknown

0.39 Miles

2014

5A

Low

    This listing applies to the entire waterbody.


1

Hare Creek Beach

Coastal & Bay Shoreline

1113.200401,1113.200402,1113.200403  /  18010108
  • Indicator Bacteria
    • A Source Unknown

0.11 Miles

2010

5A

Low

    This listing applies to the entire waterbody.


1

Iron Gate Reservoir

Lake & Reservoir

1105.370203,1105.380201  /  18010206
  • Cyanobacteria hepatotoxic microcystins
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

916 Acres

2006

5B


2010
  • Mercury
    • A Source Unknown

916 Acres

2012

5A

Low

    This listing applies to the entire waterbody.


1

Klamath River HU, Butte Valley HA

River & Stream

1105.810101,1105.810102,1105.810301,1105.810302,1105.810303,1105.810400,1105.820102,1105.820103,1105.820104,1105.830302  /  18010205
  • Oxygen, Dissolved
    • A Source Unknown

348 Miles

2012

5A

Low

    This listing only applies to Butte Creek.
  • pH
    • A Source Unknown

348 Miles

2012

5A

Low

    This listing only applies to Butte Creek.


1

Klamath River HU, Lost River HA, Tule Lake and Mt Dome HSAs

River & Stream

10590000  /  18010204
  • Arsenic
    • A Source Unknown

773 Miles

2014

5A

Low

    This listing applies to the entire waterbody.
  • Chlorophyll-a
    • A Source Unknown

773 Miles

2026

5A

Low

    This listing only applies to the Tulelake Canyon drain.
  • Mercury
    • A Source Unknown

773 Miles

2012

5A

Low

    This listing applies only to the Klamath Straits Drain.
  • Nutrients
    • Agricultural Return Flows
    • Agricultural Water Diversion
    • Agriculture
    • Agriculture-irrigation tailwater
    • Agriculture-subsurface drainage
    • Drainage/Filling Of Wetlands
    • Habitat Modification
    • Natural Sources
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Specialty Crop Production
    • Water Diversions

773 Miles

1996

5B


2008
    This listing applies to the entire waterbody.
  • Oxygen, Dissolved
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Internal Nutrient Cycling (primarily lakes)
    • Natural Sources

773 Miles

2012

5A

Low

    This listing applies to the entire waterbody.
  • Temperature, water
    • A Source Unknown

773 Miles

2028

5A

Low

  • Turbidity
    • A Source Unknown

773 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • pH
    • A Source Unknown

773 Miles

2014

5A

Low

    This listing applies to the entire waterbody.
  • pH (high)
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Internal Nutrient Cycling (primarily lakes)
    • Natural Sources

773 Miles

2012

5B


2008
    This listing applies to the entire waterbody.,


1

Klamath River HU, Lower HA, Klamath Glen HSA

River & Stream

1105.110201,1105.110306,1105.110501,1105.110504,1105.110505,1105.110506,1105.110701,1105.110801,1105.110804,1106.110304  /  18010102
  • Aluminum
    • A Source Unknown

1299 Miles

2010

5A

Low

    This listing only applies to the mainstem Klamath River within the "Klamath River HU, Lower Klamath HA, Klamath Glen HSA" waterbody.
  • Benthic Community Effects
    • A Source Unknown

1299 Miles

2014

5A

Low

  • Nutrients
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1299 Miles

1996

5B


2010
    This listing applies to the entire waterbody.
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1299 Miles

1998

5B


2010
    This listing only applies to the mainstem Klamath River within the "Klamath River HU, Lower HA, Klamath Glen HSA" waterbody.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

1299 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

1299 Miles

1996

5A

Low

    This listing applies to the entire waterbody.
  • Temperature, water
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Flow Alteration/Regulation/Modification
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Removal of Riparian Vegetation
    • Road Construction
    • Silviculture

1299 Miles

1996

5B


2010
    RWQCB staff recommend that the USEPA should not remove the mainstem Klamath River at Klamath Glen (within the Yurok Tribal Reservation boundary) from the section 303(d) list for this pollutant, because applicable water quality standards for the pollutant are being exceeded. This listing applies to the entire waterbody.


1

Klamath River HU, Middle HA and Lower HA, Scott River to Trinity River

River & Stream

1105.120302,1105.210305,1105.310102,1105.310205,1105.310403,1105.310406,1105.310407,1105.310601,1105.310604,1105.310705  /  18010211
  • Benthic Community Effects
    • A Source Unknown

4324 Miles

2014

5A

Low

  • Cyanobacteria hepatotoxic microcystins
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

4324 Miles

2010

5B


2010
    This listing applies to the mainstem Klamath River in the Klamath River Hydrologic Unit, Middle and Lower Klamath River Hydrologic Areas, Scott River to Trinity River reach.
  • Microcystins
    • A Source Unknown

4324 Miles

2026

5A

Low

    This listing applies to the mainstem Klamath River in the Klamath River Hydrologic Unit, Middle and Lower Klamath River Hydrologic Areas, Scott River to Trinity River reach.
  • Nutrients
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

4324 Miles

1996

5B


2010
    This listing applies to the entire waterbody.
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

4324 Miles

1998

5B


2010
    This listing only applies to the portion of the mainstem Klamath River that lies within the Klamath River HU, Middle HA and Lower HA, Scott River to Trinity River water body.
  • Sediment
    • A Source Unknown

4324 Miles

2010

5A

Low

    This listing for sediment only applies to the mainstem of the following waterbodies in the Klamath River HU, Middle HA and Lower HA, Scott River to Trinity River: China Creek, Grider Creek, Thompson Creek, and Walker Creek.
  • Temperature, water
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Flow Alteration/Regulation/Modification
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Removal of Riparian Vegetation
    • Road Construction
    • Silviculture

4324 Miles

1996

5B


2010
    This listing does not apply to the following streams, which lie within the Klamath River HU, Salmon River HA water body : (1) Portuguese Creek and its Tributaries, (2) Cedar Creek and its Tributaries, (3) Twin Valley Creek and its, (4) North Fork Dillon Creek and its Tributaries from the headwaters to Vann Creek, (5) Canyon Creek and its Tributaries from the headwaters to confluence with Seiad Creek, (6) Elk Creek and its Tributaries from the headwaters to Bear Creek, (7) Tenmile Creek and its Tributaries, (8) Clear Creek and its Tributaries from the headwaters to the confluence with Tenmile Creek, (9) Fort Goff Creek and its Tributaries.


1

Klamath River HU, Middle HA, Iron Gate Dam to Scott River

River & Stream

1105.350105,1105.350304,1105.350306,1105.350504,1105.360101,1105.360205,1105.360303,1105.360304,1105.370101,1105.370204  /  18010208
  • Aluminum
    • A Source Unknown

1638 Miles

2010

5A

Low

    This listing only applies to the portion of the mainstem Klamath River that lies within the Klamath River HU, Middle HA, Iron Gate Dam to Scott River water body.
  • Benthic Community Effects
    • A Source Unknown

1638 Miles

2014

5A

Low

  • Cyanobacteria hepatotoxic microcystins
    • Agriculture
    • Grazing-Related Sources
    • Habitat Modification
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1638 Miles

2010

5B


2010
    This listing applies to the mainstem Klamath River in the Klamath River Hydrologic Unit, Middle Klamath River Hydrologic Area, Iron Gate Dam to Scott River reach.
  • Microcystins
    • A Source Unknown

1638 Miles

2026

5A

Low

    This listing applies to the mainstem Klamath River in the Klamath River Hydrologic Unit, Middle Klamath River Hydrologic Area, Iron Gate Dam to Scott River reach.
  • Nutrients
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1638 Miles

1998

5B


2010
    This listing applies to the entire waterbody.
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1638 Miles

1996

5B


2010
    This listing only applies to the portion of the mainstem Klamath River that lies within the Klamath River HU, Middle HA, Iron Gate Dam to Scott River water body.
  • Sediment
    • A Source Unknown

1638 Miles

2010

5A

Low

    This listing for sediment only applies to the mainstem of the following waterbodies in the Klamath River HU, Middle HA, Iron Gate Dam to the Scott River: Beaver Creek, Cow Creek, Deer Creek, Hungry Creek, and West Fork Beaver Creek.
  • Temperature, water
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Flow Alteration/Regulation/Modification
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Removal of Riparian Vegetation
    • Road Construction
    • Silviculture

1638 Miles

1998

5B


2010
    The Klamath River HU, Middle HA, Iron Gate Dam to Scott River includes the following Hydrologic Sub Areas (HSAs) : Beaver Creek HSA 105.35 and Hornbrook HSA 105.36. This listing applies to the entire waterbody.
  • Turbidity
    • A Source Unknown

1638 Miles

2026

5A

Low

    This listing applies to Bogus Creek.


1

Klamath River HU, Middle HA, Oregon to Iron Gate

River & Stream

1105.370203,1105.380101,1105.380102,1105.380103,1105.380104,1105.380105,1105.380201,1105.380202,1105.810203,1105.810400  /  18010205
  • Cyanobacteria hepatotoxic microcystins
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

427 Miles

2006

5B


2010
    This listing applies to the mainstem Klamath River in the Klamath River Hydrologic Unit, Middle Klamath River Hydrologic Area, Oregon to Iron Gate reach, excluding the riverine reach from the Oregon border downstream to the beginning of Copco 1 Reservoir.
  • Microcystins
    • A Source Unknown

427 Miles

2026

5A

Low

    This listing applies to the mainstem Klamath River in the Klamath River Hydrologic Unit, Middle Klamath River Hydrologic Area, Oregon to Iron Gate reach, excluding the riverine reach from the Oregon border downstream to the beginning of Copco 1 Reservoir.
  • Nutrients
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Nonpoint Source
    • Road Construction
    • Silviculture

427 Miles

1996

5B


2010
    This listing applies to the entire waterbody.
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

427 Miles

1998

5B


2010
    This listing only applies to the mainstem Klamath River within the Klamath River HU, Middle HA, Oregon to Iron Gate water body.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Other
    • Removal of Riparian Vegetation
    • Road Construction
    • Sediment Resuspension (clean sediment)
    • Silviculture

427 Miles

1996

5B


2010
    The Klamath River HU, Middle HA, Oregon to Iron Gate Dam includes the following Hydrologic Sub Areas (HSAs): Iron Gate HSA 115.37 and Copco HSA 105.38. This listing applies to the mainstem Klamath River in the Klamath River Hydrologic Unit, Middle Klamath River Hydrologic Area, Oregon to Iron Gate reach, excluding the riverine reach from the Oregon border downstream to the beginning of Copco 1 Reservoir. This listing applies to the entire waterbody.


1

Klamath River HU, Scott River HA

River & Stream

1105.410102,1105.410201,1105.410303,1105.410305,1105.410306,1105.420105,1105.420404,1105.420405,1105.420701,1105.420903  /  18010210
  • Aluminum
    • A Source Unknown

2444 Miles

2010

5A

Low

    This listing only applies to the middle mainstem Scott River from Young's Dam to Boulder Creek.
  • Biostimulatory Conditions
    • A Source Unknown

2444 Miles

2012

5A

Low

    This listing only applies to the middle mainstem Scott River from Young's Dam to Boulder Creek
  • Indicator Bacteria
    • A Source Unknown

2444 Miles

2012

5A

Low

    This listing applied to Snitkaw Creek.
  • Oxygen, Dissolved
    • A Source Unknown

2444 Miles

2012

5A

Low

    This listing applies to the mainstem Scott River from Young's Dam to Boulder Creek and Sniktaw Creek.
  • Sediment
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Logging Road Construction/Maintenance
    • Other
    • Removal of Riparian Vegetation

2444 Miles

2026

5B


2006
    This listing does not apply to (1) Mill Creek and its Tributaries from the headwaters to the confluence with Etna Creek or (2) Canyon Creek and its Tributaries from the headwaters to the downstream boundary of the Marble Mountain Wilderness, which lie within the Klamath River HU, Scott River HA water body.
  • Sedimentation/Siltation
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Logging Road Construction/Maintenance
    • Other
    • Removal of Riparian Vegetation

2444 Miles

1996

5B


2006
    This listing does not apply to (1) Mill Creek and its Tributaries from the headwaters to the confluence with Etna Creek or (2) Canyon Creek and its Tributaries from the headwaters to the downstream boundary of the Marble Mountain Wilderness, which lie within the Klamath River HU, Scott River HA water body.
  • Temperature, water
    • Agricultural Return Flows
    • Agricultural Water Diversion
    • Domestic Use of Ground Water
    • Flow Alteration/Regulation/Modification
    • Hydromodification
    • Other
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization
    • Water Diversions

2444 Miles

1996

5B


2006
    This listing does not apply to (1) Mill Creek and its Tributaries from the headwaters to the confluence with Etna Creek and (2) Canyon Creek and its Tributaries from the headwaters to the downstream boundary of the Marble Mountain Wilderness, which lie within the Klamath River HU, Scott River HA water body. RWQCB staff recommend that the USEPA should not remove the portions of this water body within the QVIR boundary from the section 303(d) list for temperature because applicable water quality standards for the pollutant are being exceeded.
  • Turbidity
    • A Source Unknown

2444 Miles

2026

5A

Low

    This listing applies to the mainstem Scott River.
  • pH
    • A Source Unknown

2444 Miles

2012

5A

Low

    This listing only applies to the middle mainstem Scott River from Young's Dam to Boulder Creek and Shackleford Creek above Campbell Lake, which lie within the Klamath River HU, Scott River HA water body.


1

Klamath River HU, Shasta River HA

River & Stream

1105.500201,1105.500203,1105.500302,1105.500402,1105.500603,1105.500709,1105.500801,1105.500803,1105.500902,1105.501003  /  18010208
  • Aluminum
    • A Source Unknown

1403 Miles

2010

5A

Low

    This listing only applies to the mainstem Shasta River, which lies within the "Klamath River HU, Shasta River HA" water body.
  • Benthic Community Effects
    • A Source Unknown

1403 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

1403 Miles

2014

5A

Low

    This listing applies to the mainstem Shasta River, Big Springs Creek, and Parks Creek.
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture-irrigation tailwater
    • Agriculture-storm runoff
    • Dairies
    • Dam Construction
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Hydromodification
    • Minor Municipal Point Source-dry and/or wet weather discharge

1403 Miles

1800

5B


2007
  • Oxygen, Dissolved
    • A Source Unknown

1403 Miles

2014

5A

Low

    This listing applies to the mainstem Shasta River from Lake Shastina downstream to Big Springs Creek.
  • Specific Conductivity
    • A Source Unknown

1403 Miles

2010

5A

Low

    This listing applies to the mainstem Shasta River.
  • Temperature, water
    • Agriculture-irrigation tailwater
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Removal of Riparian Vegetation

1403 Miles

1996

5B


2007
    This listing applies to the entire waterbody.
  • pH
    • A Source Unknown

1403 Miles

2012

5A

Low

    This listing only applies to Big Springs Creek and the mainstem Shasta River.


1

Klamath River HU, Tule Lake and Lower Klamath Lake National Wildlife Refuge

Lake & Reservoir

1105.910200,1105.910300,1105.920202  /  18010204
  • pH
    • A Source Unknown

48791 Acres

2026

5A

Low

    This listing applies to the entire waterbody.
  • pH (high)
    • Internal Nutrient Cycling (primarily lakes)
    • Nonpoint Source

48791 Acres

2006

5B


2013
    The Klamath River HU, Tule Lake and Lower Klamath Lake National Wildlife Refuge includes the following Calwater Planning Watersheds (PWS): Lower Klamath Lake National Wildlife Refuge PWS 105.91020 and Tule Lake PWS 105.92020.


1

Luffenholtz Beach

Coastal & Bay Shoreline

1108.100002,1108.100002,1108.100002,1108.100002,1108.100003,1108.100003,1108.100003,1108.200001,1108.200001,1108.200001,(Total Count: 16)  /  18010102
  • Indicator Bacteria
    • A Source Unknown

0.44 Miles

2006

5A

Low

    This listing applies to the entire waterbody.


1

Mad River HU, Mad River

River & Stream

1107.300103,1109.100103,1109.300201,1109.300302,1109.300404,1109.300405,1109.300503,1109.300602,1109.400301,1109.400302  /  18010104
  • Aluminum
    • A Source Unknown

1882 Miles

2010

5A

Low

    This listing only applies to the mainstem Mad River.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

1882 Miles

2026

5B


2007
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

1882 Miles

1994

5B


2007
  • Specific Conductivity
    • A Source Unknown

1882 Miles

2010

5A

Low

    This listing applies to the mainstem Mad River.
  • Temperature, water
    • A Source Unknown

1882 Miles

2002

5A

Low

    This listing applies to the entire waterbody.
  • Turbidity
    • A Source Unknown

1882 Miles

1994

5A

Low



1

Mendocino Coast HU, Albion River HA, Albion River

River & Stream

1113.400001,1113.400002,1113.400003,1113.400006  /  18010108
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Logging Road Construction/Maintenance
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Silviculture

98 Miles

2026

5B


2001
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Logging Road Construction/Maintenance
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Silviculture

98 Miles

1994

5B


2001
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

98 Miles

2006

5A

Low

    This listing applies to the entire waterbody.


1

Mendocino Coast HU, Big River HA, Berry Gulch

River & Stream

1113.300402,1113.300403  /  18010108
  • Oxygen, Dissolved
    • A Source Unknown

28 Miles

2012

5A

Low

    This listing only applies to Rocky Gulch, the Little North Fork, and Manley Gulch.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

28 Miles

1800

5A

Low

    This listing only applies to the Little North Fork.


1

Mendocino Coast HU, Big River HA, Big River

River & Stream

1113.300101,1113.300102,1113.300103,1113.300104,1113.300201,1113.300202,1113.300203,1113.300301,1113.300302,1113.300303,(Total Count: 15)  /  18010108
  • Oxygen, Dissolved
    • A Source Unknown

448 Miles

2012

5A

Low

    This listing only applies to the mainstem Big River, Cookhouse Gulch, and Railroad Gulch.
  • Sediment
    • Disturbed Sites (Land Develop.)
    • Flow Alteration/Regulation/Modification
    • Logging Road Construction/Maintenance
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Road Construction
    • Silviculture

448 Miles

2026

5B


2004
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Disturbed Sites (Land Develop.)
    • Flow Alteration/Regulation/Modification
    • Logging Road Construction/Maintenance
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Road Construction
    • Silviculture

448 Miles

1994

5B


2004
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

448 Miles

1996

5A

Low

    This listing applies to the entire waterbody.


1

Mendocino Coast HU, Garcia River HA, Garcia River

River & Stream

1113.700101,1113.700102,1113.700103,1113.700104,1113.700105,1113.700201,1113.700202,1113.700203,1113.700204,1113.700205,(Total Count: 12)  /  18010109
  • Sediment
    • A Source Unknown

243 Miles

1994

5B


2002
    This listing applies to the entire waterbody.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

243 Miles

2002

5A

Low

    Elevated temperatures impacting cold water fisheries in these reaches and sub_areas: Planning Units 113.70010 (Pardaloe Creek), 113.70011, 12, 13, 14, 20, 21 and the entire mainstem Garcia River from Pardaloe Creek to the estuary, which includes that portion of 113.70022, 23, 24, 25, and 26. February 2002- The Garcia River TMDL for sediment has been adopted by NCRWQCB and approved by SWRCB and Office of Administrative Law. It is possible that voluntary compliance with measures in this TMDL will improve conditions related to temperature prior to development of a TMDL for temperature. This listing applies to the entire waterbody.


1

Mendocino Coast HU, Gualala River HA, Gualala River

River & Stream

1113.810002,1113.810003,1113.820001,1113.820003,1113.820004,1113.830002,1113.830003,1113.840302,1113.840304,1113.850101  /  18010109
  • Aluminum
    • A Source Unknown

685 Miles

2010

5A

Low

    This listing only applies to the mainstem Gualala River.
  • Benthic Community Effects
    • A Source Unknown

685 Miles

2014

5A

Low

  • Sediment
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Highway/Road/Bridge Construction
    • Land Development
    • Logging Road Construction/Maintenance
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Silviculture
    • Specialty Crop Production

685 Miles

2026

5B


2004
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Highway/Road/Bridge Construction
    • Land Development
    • Logging Road Construction/Maintenance
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Silviculture
    • Specialty Crop Production

685 Miles

1994

5B


2004
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

685 Miles

2002

5A

Low

    The Gualala River is listed for temperature, with the exception of the Little North Fork and its tributaries upstream of Log Cabin Creek.


1

Mendocino Coast HU, Navarro River HA

River & Stream

1113.500104,1113.500201,1113.500303,1113.500304,1113.500401,1113.500404,1113.500603,1113.500703,1113.500706,1113.500707  /  18010109
  • Nickel
    • A Source Unknown

786 Miles

2012

5A

Low

    This listing only applies to the mainstem Navarro River in the "Mendocino Coast HU, Navarro River HA" waterbody.
  • Sediment
    • Agriculture
    • Agriculture-grazing
    • Channel Erosion
    • Construction/Land Development
    • Disturbed Sites (Land Develop.)
    • Drainage/Filling Of Wetlands
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Harvesting, Restoration, Residue Management
    • Highway/Road/Bridge Construction
    • Irrigated Crop Production
    • Land Development
    • Logging Road Construction/Maintenance
    • Nonirrigated Crop Production
    • Nonpoint Source
    • Range Grazing-Riparian
    • Range Grazing-Riparian and/or Upland
    • Range Grazing-Upland
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Silvicultural Point Sources
    • Silviculture
    • Specialty Crop Production
    • Streambank Modification/Destabilization
    • Water Diversions

786 Miles

2026

5B


2000
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Agriculture
    • Agriculture-grazing
    • Channel Erosion
    • Construction/Land Development
    • Disturbed Sites (Land Develop.)
    • Drainage/Filling Of Wetlands
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Harvesting, Restoration, Residue Management
    • Highway/Road/Bridge Construction
    • Irrigated Crop Production
    • Land Development
    • Logging Road Construction/Maintenance
    • Nonirrigated Crop Production
    • Nonpoint Source
    • Range Grazing-Riparian
    • Range Grazing-Riparian and/or Upland
    • Range Grazing-Upland
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Silvicultural Point Sources
    • Silviculture
    • Specialty Crop Production
    • Streambank Modification/Destabilization
    • Water Diversions

786 Miles

1994

5B


2000
  • Specific Conductivity
    • A Source Unknown

786 Miles

2010

5A

Low

    This listing applies to the mainstem Navarro River.
  • Temperature, water
    • Agricultural Return Flows
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Streambank Modification/Destabilization
    • Water Diversions

786 Miles

1996

5B


2000


1

Mendocino Coast HU, Noyo River HA, Noyo River

River & Stream

1113.200101,1113.200102,1113.200103,1113.200104,1113.200105,1113.200106,1113.200201,1113.200202,1113.200301,1113.200302,(Total Count: 12)  /  18010108
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Silviculture

344 Miles

2026

5B


1999
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Nonpoint Source
    • Removal of Riparian Vegetation
    • Silviculture

344 Miles

1994

5B


1999
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

344 Miles

2006

5A

Low

    This listing only applies to the following areas of the Noyo River watershed: (1) The Noyo River mainstem from the confluence of Duffy Gulch downstream to the confluence with Hayshed Gulch, (2) The South Fork Noyo River mainstem from the confluence of Kass Creek downstream to the confluence with Noyo River mainstem, (3) The Little North Fork Noyo River, (4) Duffy Gulch, and (5) Kass Creek tributaries.


1

Mendocino Coast HU, Noyo River HA, Pudding Creek

River & Stream

1113.200501,1113.200508  /  18010108
  • Indicator Bacteria
    • A Source Unknown

41 Miles

2012

5A

Low

    This listing applies to the entire waterbody.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

41 Miles

2006

5A

Low

    This listing only applies to the mainstem of Pudding Creek.


1

Mendocino Coast HU, Rockport HA, Ten Mile River HSA

River & Stream

1113.130101,1113.130102,1113.130201,1113.130202,1113.130203,1113.130204,1113.130301,1113.130302,1113.130303,1113.130304,(Total Count: 14)  /  18010108
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Logging Road Construction/Maintenance
    • Removal of Riparian Vegetation
    • Silviculture

252 Miles

2026

5B


2000
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Logging Road Construction/Maintenance
    • Removal of Riparian Vegetation
    • Silviculture

252 Miles

1996

5B


2000
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

252 Miles

2002

5A

Low

    This listing does not apply to Mill Creek, Gulch 11, Churchman Creek, Little Bear Haven Creek, Buckhorn Creek, Booth Gulch, Smith Creek, Bear Haven Creek, and the Little North Fork Ten Mile River, all of which lie within the Mendocino Coast HU, Rockport HA, Ten Mile River HSA water body.


1

Moonstone County Park

Coastal & Bay Shoreline

1108.100002,1108.200002  /  18010102
  • Indicator Bacteria
    • A Source Unknown

0.93 Miles

2010

5A

Low

    This listing applies to the entire waterbody.


1

Navarro River Beach

Coastal & Bay Shoreline

1113.400003,1113.400004,1113.400005,1113.500707,1113.610002  / 
  • Indicator Bacteria
    • A Source Unknown

0.53 Miles

2014

5A

Low

    This listing applies to the entire waterbody.


1

Plaskett Lake

Lake & Reservoir

1111.730203  /  18010104
  • Mercury
    • A Source Unknown

6.3 Acres

2012

5A

Low

    This listing applies to the entire waterbody.


1

Pudding Creek Beach

Coastal & Bay Shoreline

1113.200507,1113.200508  /  18010108
  • Indicator Bacteria
    • A Source Unknown

0.16 Miles

2010

5A

Low

    This listing applies to the entire waterbody.


1

Redwood Creek HU, Redwood Creek

River & Stream

1107.100103,1107.100201,1107.100203,1107.200101,1107.200102,1107.200201,1107.200202,1107.200302,1107.200401,1107.300103  /  18010102
  • Aluminum
    • A Source Unknown

524 Miles

2010

5A

Low

    This listing only applies to the mainstem of Redwood Creek.
  • Sediment
    • Construction/Land Development
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Logging Road Construction/Maintenance
    • Natural Sources
    • Range Grazing-Riparian
    • Removal of Riparian Vegetation
    • Silviculture
    • Streambank Modification/Destabilization

524 Miles

2026

5B


1998
  • Sedimentation/Siltation
    • Construction/Land Development
    • Disturbed Sites (Land Develop.)
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Logging Road Construction/Maintenance
    • Natural Sources
    • Range Grazing-Riparian
    • Removal of Riparian Vegetation
    • Silviculture
    • Streambank Modification/Destabilization

524 Miles

1994

5B


1998
  • Temperature, water
    • A Source Unknown

524 Miles

2002

5A

Low

    This listing does not apply to Larry Dam Creek, Little Lost Man Creek, Lost Man Creek, Prairie Creek, and Tom McDonald Creek which lie within the "Redwood Creek HU, Redwood Creek" water body.


1

Russian Gulch

Coastal & Bay Shoreline

1113.200402,1113.300403,1113.300404,1113.300405,1113.400004  / 
  • Indicator Bacteria
    • A Source Unknown

0.08 Miles

2014

5A

Low

    This listing applies to the entire waterbody.


1

Russian River HU, Lower Russian River HA, Austin Creek HSA

River & Stream

1114.110402,1114.120001,1114.120002,1114.120003,1114.120004,1114.120005  /  18010109
  • Oxygen, Dissolved
    • A Source Unknown

151 Miles

2010

5A

Low

    This listing only applies to the mainstem of Austin Creek in the "Russian River HU, Lower Russian River HA, Austin Creek HSA" waterbody.
  • Sediment
    • A Source Unknown

151 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • A Source Unknown
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

151 Miles

1998

5A

Low

    Sediment impacts in Russian River tributaries prompted listing entire Russian River watershed for sediment.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

151 Miles

2002

5A

Low

    This listing applies to the entire waterbody.


1

Russian River HU, Lower Russian River HA, Guerneville HSA

River & Stream

1114.110101,1114.110102,1114.110103,1114.110104,1114.110301,1114.110302,1114.110303,1114.110304,1114.110401,1114.110402,(Total Count: 12)  /  18010111
  • Aluminum
    • A Source Unknown

249 Miles

2010

5A

Low

    The listing only applies to the mainstem Russian River: (1) at Healdsburg Memorial Beach from the railroad bridge to highway 101 and (2) from Fife Creek to Dutch Bill Creek, which lie within the Russian River HU, Lower Russian River HA, Guerneville HSA water body.
  • Anatoxin-A
    • A Source Unknown

249 Miles

2026

5A

Low

    This listing applies to the mainstem Russian River.
  • Indicator Bacteria
    • A Source Unknown

249 Miles

2002

5A

High

    This listing applies to the mainstem Russian River from 200 meters upstream of Monte Rio Beach to 200 meters downstream of Monte Rio Beach.
  • Mercury
    • A Source Unknown

249 Miles

2010

5A

Low

    This listing applies to the mainstem Russian River.
  • Oxygen, Dissolved
    • A Source Unknown

249 Miles

2028

5A

Low

    This listing applies to the mainstem Russian River.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

249 Miles

2026

5A

Low

  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

249 Miles

1998

5A

Low

    Sediment impacts in Russian River tributaries prompted listing entire Russian River watershed for sediment TMDL.
  • Specific Conductivity
    • A Source Unknown

249 Miles

2010

5A

Low

    This listing applies to the mainstem Russian River at Healdsburg Memorial Beach from the Railroad Bridge to Hwy 101 bridge.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

249 Miles

2002

5A

Low

    This listing applies to the entire waterbody.
  • Total Dissolved Solids
    • A Source Unknown

249 Miles

2010

5A

Low

    This listing applies to the mainstem Russian River.
  • Turbidity
    • A Source Unknown

249 Miles

2028

5A

Low

    This listing applies to the mainstem Russian River.


1

Russian River HU, Lower Russian River HA, Guerneville HSA, Green Valley Creek watershed

River & Stream

1114.110103,1114.110201,1114.110202  /  18010111
  • Imidacloprid
    • A Source Unknown

50 Miles

2026

5A

Low

    This listing applies to Jonine Creek.
  • Indicator Bacteria
    • A Source Unknown

50 Miles

2010

5A

High

    This listing applies to the mainstem Green Valley Creek.
  • Oxygen, Dissolved
    • A Source Unknown

50 Miles

2010

5A

Low

    This listing only applies to Green Valley Creek and Lake Graton.
  • Specific Conductivity
    • A Source Unknown

50 Miles

2010

5A

Low

    This listing applies to Atascadero Creek.
  • pH
    • A Source Unknown

50 Miles

2010

5A

Low

    This listing only applies to Atascadero Creek Marsh Ecological Reserve and Lake Graton.


1

Russian River HU, Middle Russian River HA, Big Sulphur Creek HSA

River & Stream

1114.250101,1114.260101,1114.260102,1114.260103,1114.260104,1114.260201,1114.260202,1114.260203,1114.260204  /  18010110
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

180 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

180 Miles

1998

5A

Low

    Sediment impacts in Russian River tributaries prompted listing entire Russian River watershed for sediment .
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

180 Miles

2002

5A

Low

    The most sensitive beneficial uses supported by the Russian River include uses associated with the cold water fishery and municipal and domestic supply. The Russian River provides habitat for coho salmon and steelhead trout, which are listed as a threatened species under the federal Endangered Species Act. Temperature data collected from 1997 to 2000 in the Russian River watershed indicate that high temperature levels may be a source of impairment of cold water fisheries in the watershed. This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Geyserville HSA

River & Stream

1114.250101,1114.250103,1114.250104,1114.250302,1114.250402,1114.250403,1114.250404,1114.250501,1114.250502,1114.310701  /  18010110
  • Aluminum
    • A Source Unknown

436 Miles

2010

5A

Low

    This listing only applies to the mainstem Russian River and Big Sulphur Creek.
  • Anatoxin-A
    • A Source Unknown

436 Miles

2026

5A

Low

    This listing applies to the mainstem Russian River.
  • Benthic Community Effects
    • A Source Unknown

436 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

436 Miles

2010

5A

Low

    This listing applies to the mainstem Russian River and Big Sulphur Creek.
  • Diazinon
    • A Source Unknown

436 Miles

2010

5A

Low

    This listing applies only to Foss Creek which lies within the "Russian River HU, Middle Russian River HA, Geyserville HSA" waterbody.
  • Manganese
    • A Source Unknown

436 Miles

2012

5A

Low

    This listing applies to Big Sulphur Creek and the mainstem Russian River.
  • Oxygen, Dissolved
    • A Source Unknown

436 Miles

2012

5A

Low

    This listing applies to the mainstem Russian River.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

436 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

436 Miles

1998

5A

Low

    Sediment impacts in Russian River tributaries prompted listing entire Russian River watershed for sediment TMDL.
  • Specific Conductivity
    • A Source Unknown

436 Miles

2010

5A

Low

    This listing applies to the mainstem Russian River.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

436 Miles

2002

5A

Low

    This listing applies to the entire waterbody.
  • Turbidity
    • A Source Unknown

436 Miles

1800

5A

Low



1

Russian River HU, Middle Russian River HA, Laguna HSA, mainstem Laguna de Santa Rosa

River & Stream

1114.210001,1114.210002,1114.220103,1114.230201  / 
  • Indicator Bacteria
    • A Source Unknown

16 Miles

2012

5A

High

    This listing applies to the entire waterbody.
  • Mercury
    • A Source Unknown

16 Miles

2012

5A

Low

    This listing applies to the entire waterbody.
  • Oxygen, Dissolved
    • A Source Unknown

16 Miles

2012

5A

Medium

    This listing applies to the mainstem Russian River.
  • Phosphorus
    • A Source Unknown

16 Miles

2012

5A

High

  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

16 Miles

2026

5A

High

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

16 Miles

2012

5A

Medium

    The entire Russian River watershed (including the mainstem Laguna de Santa Rosa) is listed for sedimentation.
  • Temperature, water
    • A Source Unknown

16 Miles

2012

5A

High

  • Turbidity
    • A Source Unknown

16 Miles

2014

5A

Low

    This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Laguna HSA, tributaries to the Laguna de Santa Rosa (except Santa Rosa Creek and its tributaries)

River & Stream

1114.210001,1114.210002,1114.210003,1114.230201  / 
  • Oxygen, Dissolved
    • A Source Unknown

117 Miles

2012

5A

High

    This listing only applies to the mainstem of Colgan Creek, which lies within the "Russian River HU, Middle Russian River HA, Laguna HSA, tributaries to the Laguna de Santa Rosa (except Santa Rosa Creek and its tributaries)" water body.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

117 Miles

2026

5A

High

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

117 Miles

2012

5A

Medium

    The entire Russian River watershed (including the tributaries to the Laguna de Santa Rosa) is listed for sedimentation.
  • Sodium
    • A Source Unknown

117 Miles

2026

5A

Low

    This listing applies to Colgan Creek and Copeland Creek.
  • Specific Conductivity
    • A Source Unknown

117 Miles

2014

5A

Low

    This listing applies to Bellevue Wilfred.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

117 Miles

2012

5A

Medium

    Entire Russian River watershed (including tributaries to the Laguna de Santa Rosa) is listed for temperature. The most sensitive beneficial uses supported by the Russian River include uses associated with the cold water fishery and municipal and domestic supply. The Russian River provides habitat for coho salmon and steelhead trout, which are listed as a threatened species under the federal Endangered Species Act. Temperature data collected from 1997 to 2000 in the Russian River watershed indicate that high temperature levels may be a source of impairment of cold water fisheries in the watershed. This listing applies to the entire waterbody.
  • Turbidity
    • A Source Unknown

117 Miles

2026

5A

Low

    This listing applies to Bellevue Wilfred, Colgan Creek, Copeland Creek, and Gossage Creek.


1

Russian River HU, Middle Russian River HA, Mark West HSA, Windsor Creek and its tributaries

River & Stream

1114.230201,1114.230202  / 
  • Imidacloprid
    • A Source Unknown

47 Miles

2026

5A

Low

    This listing applies to Windsor Creek.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

47 Miles

2026

5A

Medium

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

47 Miles

2012

5A

Low

    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

47 Miles

2012

5A

Medium

    The most sensitive beneficial uses supported by the Russian River include uses associated with the cold water fishery and municipal and domestic supply. The Russian River provides habitat for coho salmon and steelhead trout, which are listed as a threatened species under the federal Endangered Species Act. Temperature data collected from 1997 to 2000 in the Russian River watershed indicate that high temperature levels may be a source of impairment of cold water fisheries in the watershed. This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek downstream of the confluence with the Laguna de Santa Rosa

River & Stream

1114.110102,1114.230201  / 
  • Aluminum
    • A Source Unknown

5.3 Miles

2012

5A

Low

    This listing applies to the entire waterbody.
  • Manganese
    • A Source Unknown

5.3 Miles

2012

5A

Low

    This listing applies to the entire waterbody.
  • Oxygen, Dissolved
    • A Source Unknown

5.3 Miles

2012

5A

Medium

    The mainstem Laguna de Santa Rosa, including the portion of the mainstem Mark West Creek below the confluence with the Laguna, was added to the 303(d) List in 1990 for high levels of ammonia and low dissolved oxygen (DO) concentrations. A TMDL was completed for the Laguna for ammonia and dissolved oxygen in 1995. The TMDL concluded that high ammonia levels in the Laguna were the result of point and non-point source nitrogen inputs of various forms. Low dissolved oxygen concentrations were a result of inputs of organic matter and nutrients which stimulate algal growth and subsequently cause depressed dissolved oxygen levels when the algae dies and decays. The TMDL took the form of a Waste Reduction Strategy (WRS) which addressed the reduction of nitrogen loading from point and non-point sources. With the implementation of the WRS and operational improvements at the City of Santa Rosa Waste Water Treatment Plant as well as improvements in waste storage and disposal activities at local dairies, nitrogen inputs to the Laguna were significantly reduced. Following implementation of the WRS and the subsequent attainment of nitrogen-ammonia interim concentration goals, as stated in the WRS, the Laguna was removed from the 303(d) List for ammonia and dissolved oxygen in 1998, pursuant to a recommendation by US EPA. However, dissolved oxygen levels in the mainstem Laguna and mainstem Mark West Creek below the confluence with the Laguna continue to fall below the Regional Water Board Basin Plan minimum DO objective of 7.0 mg/L and in many cases fluctuate significantly on a daily and seasonal basis. Based on the latest available information, it appears that the nutrient driving biostimulatory conditions in the mainstem Laguna de Santa Rosa and mainstem Mark West Creek below the confluence with the Laguna is phosphorus. Preliminary TMDL linkage analysis and modeling results by Regional Water Board staff provide evidence that total phosphorus concentrations drive algal biomass and therefore drive dissolved oxygen concentrations. Regional Water Board staff conclude that reductions in total phosphorus are needed to reduce algal biomass and thus reduce the biostimulatory response (increase dissolved oxygen levels). This listing applies to the entire waterbody.
  • Phosphorus
    • A Source Unknown

5.3 Miles

2012

5A

Medium

    This listing applies to the entire waterbody.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

5.3 Miles

2026

5A

Medium

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

5.3 Miles

2012

5A

Low

    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment.
  • Specific Conductivity
    • A Source Unknown

5.3 Miles

2012

5A

Low

    This listing applies to the entire water body.
  • Temperature, water
    • Other

5.3 Miles

2012

5A

Medium

    The most sensitive beneficial uses supported by the Russian River include uses associated with the cold water fishery and municipal and domestic supply. The Russian River provides habitat for coho salmon and steelhead trout, which are listed as a threatened species under the federal Endangered Species Act. Temperature data collected from 1997 to 2000 in the Russian River watershed indicate that high temperature levels may be a source of impairment of cold water fisheries in the watershed. This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek upstream of the confluence with the Laguna de Santa Rosa

River & Stream

1114.230101,1114.230102,1114.230103,1114.230104,1114.230201,1114.230202  / 
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

25 Miles

2026

5A

Medium

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

25 Miles

2012

5A

Low

    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment.
  • Temperature, water
    • Other

25 Miles

2012

5A

Medium

    The most sensitive beneficial uses supported by the Russian River include uses associated with the cold water fishery and municipal and domestic supply. The Russian River provides habitat for coho salmon and steelhead trout, which are listed as a threatened species under the federal Endangered Species Act. Temperature data collected from 1997 to 2000 in the Russian River watershed indicate that high temperature levels may be a source of impairment of cold water fisheries in the watershed. This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Mark West HSA, tributaries to Mark West Creek (except Windsor Creek and its tributaries)

River & Stream

1114.230101,1114.230102,1114.230103,1114.230104,1114.230201,1114.230202  / 
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

67 Miles

2026

5A

Medium

  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

67 Miles

2012

5A

Low

    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

67 Miles

2012

5A

Medium

    This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Santa Rosa HSA, mainstem Santa Rosa Creek

River & Stream

1114.210002,1114.220102,1114.220103,1114.220104  / 
  • Aluminum
    • A Source Unknown

21 Miles

2012

5A

Low

    This listing applies to the entire waterbody.
  • Indicator Bacteria
    • A Source Unknown

21 Miles

2012

5A

High

  • Manganese
    • A Source Unknown

21 Miles

2014

5A

Low

    This listing applies to the entire waterbody.
  • Oxygen, Dissolved
    • A Source Unknown

21 Miles

2012

5A

Medium

    This listing applies to the entire waterbody.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

21 Miles

2026

5A

Medium

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

21 Miles

2012

5A

Low

    The entire Russian River watershed (including Santa Rosa Creek) is listed for sedimentation.
  • Specific Conductivity
    • A Source Unknown

21 Miles

2012

5A

Low

    This listing applies to the entire waterbody.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

21 Miles

2012

5A

Medium

    The entire Russian River watershed (including Santa Rosa Creek) is listed for temperature. This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Santa Rosa HSA, tributaries to Santa Rosa Creek

River & Stream

1114.220101,1114.220102,1114.220103,1114.220104,1114.220201,1114.220202,1114.220203  / 
  • Mercury
    • A Source Unknown

112 Miles

2012

5A

Low

  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

112 Miles

2026

5A

Medium

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

112 Miles

2012

5A

Low

    This listing applies to the entire waterbody.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

112 Miles

2012

5A

Medium

    The entire Russian River watershed (including tributaries to Santa Rosa Creek) is listed for temperature. This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Warm Springs HSA

River & Stream

1114.240102,1114.240103,1114.240202,1114.240203,1114.240301,1114.240302,1114.240305,1114.240402,1114.240602,1114.240603  /  18010110
  • Benthic Community Effects
    • A Source Unknown

528 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

528 Miles

2014

5A

High

    This listing applies to Foss Creek.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

528 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

528 Miles

1998

5A

Low

    Sediment impacts in Russian River tributaries prompted listing entire Russian River watershed for sediment .
  • Temperature, water
    • A Source Unknown

528 Miles

2002

5A

Low

    This listing applies to the entire waterbody.


1

Russian River HU, Middle Russian River HA, Warm Springs HSA, Lake Sonoma [Reservoir]

Lake & Reservoir

1114.240202,1114.240203,1114.240302,1114.240305,1114.240401  /  18010110
  • Mercury
    • A Source Unknown

2639 Acres

2002

5A

Low

    This listing applies to the entire waterbody.


1

Russian River HU, Upper Russian River HA, Coyote Valley HSA

River & Stream

1114.320101,1114.320103,1114.320105,1114.320106,1114.320107,1114.320400,1114.320502,1114.320503,1114.320600,5513.540104  /  18010110
  • Aluminum
    • A Source Unknown

323 Miles

2010

5A

Low

    This listing only applies to the mainstem East Fork Russian River in the "Russian River HU, Upper Russian River HA, Coyote Valley HSA" waterbody.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

323 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

323 Miles

1998

5A

Low

    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment .
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

323 Miles

2002

5A

Low

    The most sensitive beneficial uses supported by the Russian River include uses associated with the cold water fishery and municipal and domestic supply. The Russian River provides habitat for coho salmon and steelhead trout, which are listed as a threatened species under the federal Endangered Species Act. Temperature data collected from 1997 to 2000 in the Russian River watershed indicate that high temperature levels may be a source of impairment of cold water fisheries in the watershed. This listing applies to the entire waterbody.


1

Russian River HU, Upper Russian River HA, Coyote Valley HSA, Lake Mendocino [Reservoir]

Lake & Reservoir

1114.320600  /  18010110
  • Mercury
    • A Source Unknown

1698 Acres

2006

5A

Low

    This listing applies to the entire waterbody.


1

Russian River HU, Upper Russian River HA, Forsythe Creek HSA

River & Stream

1114.330101,1114.330102,1114.330200,1114.330301,1114.330302,1114.330303,1114.330304,1114.330305  /  18010110
  • Oxygen, Dissolved
    • A Source Unknown

256 Miles

2014

5A

Low

    This listing applies to Forsythe Creek.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

256 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

256 Miles

1998

5A

Low

    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment .
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

256 Miles

2002

5A

Low

    The most sensitive beneficial uses supported by the Russian River include uses associated with the cold water fishery and municipal and domestic supply. The Russian River provides habitat for coho salmon and steelhead trout, which are listed as a threatened species under the federal Endangered Species Act. Temperature data collected from 1997 to 2000 in the Russian River watershed indicate that high temperature levels may be a source of impairment of cold water fisheries in the watershed. This listing applies to the entire waterbody.
  • Turbidity
    • A Source Unknown

256 Miles

2026

5A

Low

    This listing applies to Forsythe Creek.
  • pH
    • A Source Unknown

256 Miles

2026

5A

Low

    This listing applies to Forsythe Creek.


1

Russian River HU, Upper Russian River HA, Ukiah HSA

River & Stream

1114.310200,1114.310602,1114.310603,1114.310701,1114.310702,1114.310803,1114.310900,1114.311005,1114.311102,1114.311104  /  18010110
  • Aluminum
    • A Source Unknown

753 Miles

2010

5A

Low

    This listing only applies to mainstem Russian River and East Fork Russian River which lie within the Russian River HU, Upper Russian River HA, Ukiah HSA water body.
  • Copper
    • A Source Unknown

753 Miles

2010

5A

Low

    This listing applies to the mainstem Russian River.
  • Manganese
    • A Source Unknown

753 Miles

2012

5A

Low

    This listing only applies to the Mainstem Russian River and East Fork Russian River within the "Russian River HU, Upper Russian River HA, Ukiah HSA" waterbody.
  • Mercury
    • A Source Unknown

753 Miles

2010

5A

Low

    This listing applies to the entire waterbody.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

753 Miles

2026

5A

Low

  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

753 Miles

1998

5A

Low

    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment .
  • Temperature, water
    • A Source Unknown

753 Miles

2002

5A

Low

    This listing applies to the entire waterbody.
  • Turbidity
    • A Source Unknown

753 Miles

2026

5A

Low

    This listing applies to the mainstem Russian River.


1

Ruth Lake

Lake & Reservoir

1109.400301,1109.400302  /  18010102
  • Mercury
    • A Source Unknown

1075 Acres

2010

5A

Low



1

Santa Rosa Hydrologic Subarea, Spring Lake (Santa Rosa Creek Reservoir)

Lake & Reservoir

1114.220201  / 
  • Mercury
    • A Source Unknown

72 Acres

2014

5A

Low

    This listing applies to the entire waterbody.


1

Shastina, Lake

Lake & Reservoir

1105.500707,1105.500708  /  18010207
  • Mercury
    • A Source Unknown

1681 Acres

2010

5A

Low

    This listing applies to the entire waterbody.


1

Smith River HU, Delilah Creek

River & Stream

1103.110003,1103.110004  / 
  • Alkalinity as CaCO3
    • A Source Unknown

2.2 Miles

2014

5A

Low

    This listing applies to the entire waterbody.
  • Copper
    • A Source Unknown

2.2 Miles

2014

5A

Low

    This listing applies to the entire waterbody.


1

Smith River HU, Martin Ranch Northwest, minor unnamed coastal stream

River & Stream

1103.110002,1103.110003  / 
  • Oxygen, Dissolved
    • A Source Unknown

1.4 Miles

2014

5A

Low

    This listing applies to the entire waterbody.


1

Smith River HU, Morrison Creek

River & Stream

1103.110001,1103.110003  / 
  • Diuron
    • A Source Unknown

4 Miles

2026

5A

Low

    This listing applies to the entire waterbody.


1

Smith River HU, Ritmer Creek

River & Stream

1103.110003,1103.110004  / 
  • Diuron
    • A Source Unknown

5.1 Miles

2026

5A

Low

    This listing applies to the entire waterbody.


1

Smith River HU, Smith River Estuary

River & Stream

1103.110003  /  18010101
  • Temperature, water
    • A Source Unknown

4.9 Miles

2026

5A

Low

    This listing applies to the entire waterbody.


1

Smith River HU, Smith River watershed

River & Stream

1103.110003,1103.200102,1103.200104,1103.200105,1103.300101,1103.300102,1103.300103,1103.300203,1103.300302,1103.300401  /  18010209
  • Diuron
    • A Source Unknown

2710 Miles

2026

5A

Low

    This listing applies to Mello Creek.


1

Smith River HU, Tilas Slough

River & Stream

1103.110003  / 
  • Copper
    • A Source Unknown

1.6 Miles

2014

5A

Low

    This listing applies to the entire waterbody.


1

Trinidad HU, Big Lagoon HA, Freshwater Lagoon

Wetland, Freshwater

1108.100002  / 
  • Mercury
    • A Source Unknown

428 Acres

2026

5A

Low

    This listing applies to the entire waterbody.


1

Trinidad HU, Big Lagoon HA, McConnahas Mill Creek

River & Stream

1108.100002  / 
  • Turbidity
    • A Source Unknown

2.4 Miles

2026

5A

Low

    This listing applies to the entire waterbody.
  • pH
    • A Source Unknown

2.4 Miles

2026

5A

Low

    This listing applies to the entire waterbody.


1

Trinidad State Beach

Coastal & Bay Shoreline

1108.100002  /  18010102
  • Indicator Bacteria
    • A Source Unknown

1.1 Miles

2006

5A

Low

    This listing applies to the entire waterbody.


1

Trinity Lake (was Claire Engle Lake)

Lake & Reservoir

1106.400701,1106.400703,1106.400704,1106.400705,1106.400710,1106.400803,1106.400804,1106.400805,1106.400806,1106.400807,(Total Count: 16)  /  18010211
  • Mercury
    • A Source Unknown

15587 Acres

2006

5A

Low

    This listing applies to the entire waterbody.


1

Trinity River HU, Lower Trinity HA

River & Stream

1106.110201,1106.110203,1106.110401,1106.110402,1106.130103,1106.140105,1106.150103,1106.150205,1106.150401,1106.150702  /  18010212
  • Aluminum
    • A Source Unknown

3931 Miles

2010

5A

Low

  • Benthic Community Effects
    • A Source Unknown

3931 Miles

2014

5A

Low

  • Sediment
    • Channel Erosion
    • Dam Construction
    • Drainage/Filling Of Wetlands
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Harvesting, Restoration, Residue Management
    • Hydromodification
    • Logging Road Construction/Maintenance
    • Mine Tailings
    • Natural Sources
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Silvicultural Point Sources
    • Silviculture
    • Streambank Modification/Destabilization
    • Surface Mining
    • Upstream Impoundment

3931 Miles

2026

5B


2001
    This listing does not apply to the following water bodies, which lie within the Trinity River HU, Lower Trinity HA: the New River and its tributaries, Big French Creek and its tributaries, the North Fork Trinity River and its tributaries, including the East Fork North Fork Trinity River and its tributaries, and Manzanita Creek and its tributaries.
  • Sedimentation/Siltation
    • Channel Erosion
    • Dam Construction
    • Drainage/Filling Of Wetlands
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Harvesting, Restoration, Residue Management
    • Hydromodification
    • Logging Road Construction/Maintenance
    • Mine Tailings
    • Natural Sources
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Silvicultural Point Sources
    • Silviculture
    • Streambank Modification/Destabilization
    • Surface Mining
    • Upstream Impoundment

3931 Miles

1994

5B


2001
    This listing does not apply to the following water bodies, which lie within the Trinity River HU, Lower Trinity HA: the New River and its tributaries, Big French Creek and its tributaries, the North Fork Trinity River and its tributaries, including the East Fork North Fork Trinity River and its tributaries, and Manzanita Creek and its tributaries.
  • Temperature, water
    • A Source Unknown

3931 Miles

2012

5A

Low

    This listing applies to the mainstem Trinity River.


1

Trinity River HU, Middle HA

River & Stream

1106.150702,1106.310101,1106.310103,1106.310105,1106.310302,1106.310502,1106.310604,1106.320002,1106.320004,1106.401003  /  18010211
  • Benthic Community Effects
    • A Source Unknown

1222 Miles

2014

5A

Low

  • Sediment
    • Channel Erosion
    • Dam Construction
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Hydromodification
    • Logging Road Construction/Maintenance
    • Mine Tailings
    • Placer Mining
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Silvicultural Point Sources
    • Silviculture
    • Streambank Modification/Destabilization
    • Upstream Impoundment

1222 Miles

2026

5B


2001
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Channel Erosion
    • Dam Construction
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Harvesting, Restoration, Residue Management
    • Hydromodification
    • Logging Road Construction/Maintenance
    • Mine Tailings
    • Placer Mining
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Silvicultural Point Sources
    • Silviculture
    • Streambank Modification/Destabilization
    • Upstream Impoundment

1222 Miles

1994

5B


2001


1

Trinity River HU, South Fork HA

River & Stream

1106.210301,1106.230301,1106.230402,1106.230701,1106.250103,1106.250202,1106.250304,1106.250406,1106.250407,1106.250506  /  18010104
  • Benthic Community Effects
    • A Source Unknown

4201 Miles

2014

5A

Low

  • Boron
    • A Source Unknown

4201 Miles

2014

5A

Low

    This listing only applies to the South Fork Trinity River.
  • Hardness as CaCO3
    • A Source Unknown

4201 Miles

2026

5A

Low

    This listing only applies to Potato Creek.
  • Sediment
    • Flow Alteration/Regulation/Modification
    • Nonpoint Source
    • Range Grazing-Riparian
    • Removal of Riparian Vegetation
    • Silviculture
    • Streambank Modification/Destabilization

4201 Miles

2026

5B


2001
    This listing applies to the entire waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Nonpoint Source
    • Range Grazing-Riparian
    • Removal of Riparian Vegetation
    • Silviculture
    • Streambank Modification/Destabilization

4201 Miles

1994

5B


2001
  • Specific Conductivity
    • A Source Unknown

4201 Miles

2010

5A

Low

    This listing applies to Potato Creek.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

4201 Miles

2002

5A

Low

    This listing applies to the entire waterbody.


1

Trinity River HU, Upper HA, Trinity River, East Fork

River & Stream

1106.400301,1106.400302,1106.400303,1106.400304,1106.400401,1106.400402,1106.400403,1106.400404,1106.400710  /  18010211
  • Mercury
    • A Source Unknown

331 Miles

2006

5A

Low

    This listing applies to the entire waterbody.
  • Sediment
    • Channel Erosion
    • Dam Construction
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Harvesting, Restoration, Residue Management
    • Hydromodification
    • Logging Road Construction/Maintenance
    • Mine Tailings
    • Natural Sources
    • Nonpoint Source
    • Placer Mining
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Silviculture
    • Streambank Modification/Destabilization
    • Subsurface Mining

331 Miles

2026

5B


2001
  • Sedimentation/Siltation
    • Channel Erosion
    • Dam Construction
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Harvesting, Restoration, Residue Management
    • Hydromodification
    • Logging Road Construction/Maintenance
    • Mine Tailings
    • Natural Sources
    • Nonpoint Source
    • Placer Mining
    • Removal of Riparian Vegetation
    • Resource Extraction
    • Silviculture
    • Streambank Modification/Destabilization
    • Subsurface Mining

331 Miles

1994

5B


2001
    The Trinity River HU, Upper HA, Trinity River, East Fork includes the following Calwater Super Planning Watersheds (SPWs): Mumbo Creek SPW 106.40030 and Blue Ridge SPW 106.40040.


2

Alameda Creek

River & Stream

2204.200400,2204.300409,2204.300501,2204.300502,2204.300503,2204.300507,2204.300508,2204.300802,2204.300803  /  18050003
  • Ammonia
    • A Source Unknown

41 Miles

2024

5A

Low

  • Benthic Community Effects
    • A Source Unknown

41 Miles

2024

5A

Low

  • Diazinon
    • Other Urban Runoff
    • Surface Runoff

41 Miles

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Oxygen, Dissolved
    • A Source Unknown

41 Miles

2024

5A

Low

    The 4 dissolved oxygen exceedances were at 3 stations in the lower flood control channel of Alameda Creek; therefore, this listing only applies to the lower section below Niles Canyon at Old Canyon Rd. crossing. This is an area approximately 6.8 miles long from Old Canyon Rd to Ardenwood Drive crossing, the lowest point of Alameda Creek according to the Integrated Report map).
  • Toxicity
    • A Source Unknown

41 Miles

2014

5A

Low



2

Anderson Reservoir

Lake & Reservoir

2205.300501,2205.300502  /  18050003
  • Mercury
    • A Source Unknown

1022 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1022 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Arroyo Las Positas

River & Stream

2204.300602, 2204.300900  /  18050004
  • Ammonia
    • A Source Unknown

15 Miles

2024

5A

Low

  • Benthic Community Effects
    • A Source Unknown

15 Miles

2024

5A

Low

  • Chloride
    • A Source Unknown

15 Miles

2024

5A

Low

  • Diazinon
    • Urban Runoff/Storm Sewers

15 Miles

2002

5B


2007
    For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Eutrophication
    • A Source Unknown

15 Miles

2010

5A

Low

    This TMDL completion date was updated to 2037
  • Temperature, water
    • A Source Unknown

15 Miles

2010

5A

Low

  • pH
    • A Source Unknown

15 Miles

2024

5A

Low



2

Arroyo Mocho

River & Stream

2204.300301,2204.300302,2204.300303,2204.300900  /  18050004
  • Benthic Community Effects
    • A Source Unknown

35 Miles

2024

5A

Low

  • Diazinon
    • Urban Runoff/Storm Sewers

35 Miles

1998

5B


2007
    For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Eutrophication
    • A Source Unknown

35 Miles

2024

5A

Low

  • Temperature, water
    • A Source Unknown

35 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

35 Miles

2010

5A

Low

  • pH
    • A Source Unknown

35 Miles

2010

5A

Low

    Elevated pH in Arroyo Mocho is likely due to nuisance algae growth. See listing decision for eutrophication (decision ID 154554).


2

Arroyo Seco subwatershed (Alameda County, tributary to Arroyo Las Positas)

River & Stream

2204.300601, 2204.300604, 2204.300900  / 
  • Ammonia
    • A Source Unknown

14 Miles

2024

5A

Low

  • Benthic Community Effects
    • A Source Unknown

14 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

14 Miles

2024

5A

Low



2

Berryessa Creek subwatershed (Santa Clara County, tributary to Lower Penitencia Creek)

River & Stream

2205.300704, 2205.300800  /  18050003
  • Ammonia
    • A Source Unknown

15 Miles

2024

5A

Low



2

Bon Tempe Reservoir

Lake & Reservoir

2201.130204  /  18050005
  • Mercury
    • A Source Unknown

121 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Briones Reservoir

Lake & Reservoir

2206.600101,2206.600105  /  18050002
  • Mercury
    • A Source Unknown

1076 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Calaveras Reservoir

Lake & Reservoir

2204.300408,2204.300409  /  18050004
  • Mercury
    • A Source Unknown

1503 Acres

2010

5A

Low

    This TMDL completion date was updated to 2037.


2

Campbell Percolation Ponds

Lake & Reservoir

2205.400500  / 
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

36 Acres

2024

5A

Low



2

Carquinez Strait

Estuary

2206.100000, 2206.500405, 2206.600202, 2207.100000, 2207.210301, 2207.330001, 2207.330002  /  18050001
  • Chlordane
    • A Source Unknown

526 Acres

2002

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

526 Acres

2002

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

526 Acres

1998

5A

Low

    This listing was originally made by USEPA. This TMDL completion date was updated to 2037
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

526 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

526 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6, 7,8,-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

526 Acres

1998

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

526 Acres

1996

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

526 Acres

1998

5B


2010
    This listing covers non dioxin-like PCBs. Interim health advisory for fish is in place.
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

526 Acres

1998

5B


2010
    The specific dioxin like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5,-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.
  • Selenium
    • Exotic Species
    • Major Industrial Point Source
    • Natural Sources

526 Acres

1998

5B


2016


2

Castro Valley Creek (Alameda)

River & Stream

2204.200203  / 
  • Fipronil
    • Other Urban Runoff
    • Surface Runoff

5 Miles

2024

5B


2007
  • Indicator Bacteria
    • A Source Unknown

5 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown
    • Other Urban Runoff
    • Surface Runoff

5 Miles

2024

5B


2007


2

Central Basin, San Francisco (part of SF Bay, Lower)

Bay & Harbor

20440010  /  18050004
  • Chlordane
    • A Source Unknown

40 Acres

1998

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

40 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

40 Acres

1998

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

40 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

40 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6,7,8-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

40 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • Atmospheric Deposition
    • Industrial Point Sources
    • Minor Industrial Point Source
    • Municipal Point Sources
    • Natural Sources
    • Nonpoint Source
    • Resource Extraction

40 Acres

1992

5B


2008
    Current data indicate fish consumption and wildlife consumption impacted uses: health consumption advisory in effect for multiple fish species including striped bass and shark. Major source is historic: gold mining sediments and local mercury mining; most significant ongoing source is erosion and drainage from abandoned mines; moderate to low level inputs from point sources.
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

40 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

40 Acres

1998

5B


2010
    This listing covers non dioxin-like PCBs. Interim health advisory for fish in place.
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

40 Acres

1998

5B


2010
    The specific dioxin like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5,-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.
  • Selenium
    • A Source Unknown

40 Acres

1990

5A

Low

    Affected use is one branch of the food chain; most sensitive indicator is hatchability in nesting diving birds, significant contributions from oil refineries (control program in place) and agriculture (carried downstream by rivers); exotic species may have made food chain more susceptible to accumulation of selenium; health consumption advisory in effect for scaup and scoter (diving ducks). This TMDL completion date was updated to 2037.


2

Codornices Creek

River & Stream

20330011  /  18050002
  • Benthic Community Effects
    • A Source Unknown

2 Miles

2024

5A

Low

  • Temperature, water
    • A Source Unknown

2 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

2 Miles

2010

5A

Low

  • Trash
    • A Source Unknown

2 Miles

2010

5C


2029


2

Coyote Creek (Santa Clara Co.)

River & Stream

2205.100000, 2205.200003, 2205.300103, 2205.300201, 2205.300202, 2205.300301, 2205.300302, 2205.300501, 2205.300502, 2205.300800,(Total Count: 11)  /  18050003
  • Benthic Community Effects
    • A Source Unknown

58 Miles

2024

5A

Low

  • Bifenthrin
    • Other Urban Runoff
    • Surface Runoff

58 Miles

2014

5B


2007
  • Cypermethrin
    • Other Urban Runoff
    • Surface Runoff

58 Miles

2014

5B


2007
  • Diazinon
    • A Source Unknown
    • Other Urban Runoff
    • Surface Runoff

58 Miles

1998

5B


2007
  • Mercury
    • A Source Unknown

58 Miles

2014

5B


2008
  • Oxygen, Dissolved
    • A Source Unknown

58 Miles

2014

5A

Low

  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

58 Miles

2024

5B


2007
  • Toxicity
    • A Source Unknown

58 Miles

2014

5A

Low

    The impairment is based on sediment toxicity data.
  • Trash
    • A Source Unknown

58 Miles

2010

5C


2029


2

Coyote Point County Park (San Francisco Bay, Lower)

Coastal & Bay Shoreline

20440021  /  18050004
  • Indicator Bacteria
    • A Source Unknown

0.57 Miles

2014

5A

Low



2

Coyote Reservoir

Lake & Reservoir

20530032  /  18050003
  • Mercury
    • A Source Unknown

570 Acres

2014

5A

Low



2

Crown Beach (San Francisco Bay, Lower)

Coastal & Bay Shoreline

2204.100000,2204.200400  / 
  • Indicator Bacteria
    • A Source Unknown

1.9 Miles

2014

5A

Low



2

Del Valle Reservoir

Lake & Reservoir

2204.300203,2204.300204  /  18050004
  • Mercury
    • A Source Unknown

150 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

150 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Ellis Creek subwatershed (Sonoma County, tributary to Petaluma River)

River & Stream

2206.300101, 2206.300400  / 
  • Indicator Bacteria
    • A Source Unknown

5.8 Miles

2024

5B


2021
  • Oxygen, Dissolved
    • A Source Unknown

5.8 Miles

2024

5A

Low



2

Encinal Beach (San Francisco Bay, Central)

Coastal & Bay Shoreline

2204.100000  /  18050004
  • Indicator Bacteria
    • A Source Unknown

0.08 Miles

2014

5A

Low



2

Erckenbrack Park (San Mateo County)

Coastal & Bay Shoreline

2204.400400  / 
  • Indicator Bacteria
    • A Source Unknown

0.08 Miles

2024

5A

High



2

Fitzgerald Marine Reserve at Moss Beach

Coastal & Bay Shoreline

2202.210001,2202.210002  / 
  • Indicator Bacteria
    • A Source Unknown

0.3 Miles

2024





2

Fort Baker, Horseshoe Cove (San Francisco Bay, Central)

Coastal & Bay Shoreline

2203.100000,2203.200202  /  18050002
  • Indicator Bacteria
    • A Source Unknown

0.68 Miles

2014

5A

Low



2

Frey Creek subwatershed (Sonoma County, tributary to Sonoma Creek)

River & Stream

2206.400101, 2206.400103  / 
  • Indicator Bacteria
    • See TMDL documentation

4 Miles

2024

5B


2008
  • Oxygen, Dissolved
    • A Source Unknown

4 Miles

2024

5A

Low



2

Golden Hinde Beach

Coastal & Bay Shoreline

 /  18050005
  • Indicator Bacteria
    • A Source Unknown

0.13 Miles

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Grayson Creek

River & Stream

2207.310104, 2207.330002, 2207.330003  /  18050001
  • Benthic Community Effects
    • A Source Unknown

9.7 Miles

2024

5A

Low

  • Bifenthrin
    • Other Urban Runoff
    • Surface Runoff

9.7 Miles

2024

5B


2007
  • Deltamethrin
    • Other Urban Runoff
    • Surface Runoff

9.7 Miles

2024

5B


2007
  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

9.7 Miles

2024

5B


2007
  • Trash
    • A Source Unknown

9.7 Miles

2010

5C


2029


2

Guadalupe River

River & Stream

2205.300800,2205.400500,2205.500400  /  18050003
  • Benthic Community Effects
    • A Source Unknown

19 Miles

2024

5A

Low

  • Bifenthrin
    • Other Urban Runoff
    • Surface Runoff

19 Miles

2014

5B


2007
  • Chlordane
    • A Source Unknown

19 Miles

2014

5A

Low

  • Diazinon
    • A Source Unknown
    • Other Urban Runoff
    • Surface Runoff

19 Miles

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Mercury
    • A Source Unknown

19 Miles

1988

5B


2010
  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

19 Miles

2024

5B


2007
  • Toxicity
    • Other Urban Runoff
    • Surface Runoff

19 Miles

2014

5B


2007
  • Trash
    • A Source Unknown

19 Miles

2010

5C


2029


2

Guadalupe Slough

River & Stream

2205.500400  /  18050003
  • Toxicity
    • A Source Unknown

5.8 Miles

2014

5A

Low

    The impairment is based on water column toxicity data. This TMDL completion date was updated to 2037.


2

Gull Park (San Mateo County)

Coastal & Bay Shoreline

2204.400400  / 
  • Indicator Bacteria
    • A Source Unknown

0.08 Miles

2024

5A

High



2

Henne, Lake

Lake & Reservoir

2206.500202  /  18050002
  • Mercury
    • A Source Unknown

17 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Hennessey Lake

Lake & Reservoir

 /  18050002
  • Mercury
    • A Source Unknown

763 Acres

2024

5A

Low



2

Islais Creek Channel

Estuary

2204.100000,2204.400102  /  18050004
  • Ammonia
    • A Source Unknown

75 Acres

2002

5A

Low

    This TMDL completion date was updated to 2037
  • Chlordane
    • A Source Unknown

75 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

75 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037
  • Hydrogen Sulfide
    • A Source Unknown

75 Acres

2002

5A

Low

    This TMDL completion date was updated to 2037.
  • Indicator Bacteria
    • A Source Unknown

75 Acres

2024

5A

Low

  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

75 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.
  • Toxicity
    • A Source Unknown

75 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Keller Beach (San Francisco Bay, Central)

Coastal & Bay Shoreline

2203.100000  /  18050002
  • Indicator Bacteria
    • A Source Unknown

0.07 Miles

2014

5A

Low



2

Kirker Creek

River & Stream

2207.310102,2207.310300,2207.340100,2207.340200  /  18050001
  • Benthic Community Effects
    • A Source Unknown

8 Miles

2024

5A

Low

  • Pyrethroids
    • Channelization
    • Surface Runoff
    • Urban Runoff--Erosion and Sedimentation

8 Miles

2010

5B


2007
  • Toxicity
    • A Source Unknown

8 Miles

2010

5A

Low

    This TMDL completion date was updated to 2037.
  • Trash
    • A Source Unknown

8 Miles

2010

5C


2029


2

Kiteboard Beach (San Francisco Bay, Lower)

Coastal & Bay Shoreline

2204.100000,2204.400400  /  18050004
  • Indicator Bacteria
    • A Source Unknown

0.09 Miles

2014

5A

High



2

Lafayette Reservoir

Lake & Reservoir

2207.320102  /  18050001
  • Mercury
    • A Source Unknown

107 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

107 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Laguna Creek (Alameda County)

River & Stream

2205.200003  / 
  • Ammonia
    • A Source Unknown

5.6 Miles

2024

5A

Low



2

Lagunitas Creek

River & Stream

2201.110000,2201.120302,2201.130201,2201.130203,2201.130204,2201.130204,2201.130301  /  18050005
  • Indicator Bacteria
    • A Source Unknown

1.8 Miles

2024

5B


2007
  • Nutrients
    • A Source Unknown

1.8 Miles

1996

5A

Low

    Tributary to Tomales Bay. TMDLs will be developed as part of evolving watershed management effort. Additional monitoring and assessment needed. This TMDL completion date was updated to 2037.
  • Sedimentation/Siltation
    • A Source Unknown

1.8 Miles

1996

5B


2016
    Tributary to Tomales Bay. TMDLs will be developed as part of evolving watershed management effort. Additional monitoring and assessment needed.


2

Lake Chabot (Alameda Co)

Lake & Reservoir

2204.200300  /  18050004
  • Chlordane
    • A Source Unknown

308 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

308 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

308 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037
  • Mercury
    • A Source Unknown

308 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

308 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Lake Chabot (Solano Co)

Lake & Reservoir

2206.500405  /  18050002
  • Mercury
    • A Source Unknown

98 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Lake Herman

Lake & Reservoir

2207.210301,2207.210302  /  18050001
  • Mercury
    • A Source Unknown

107 Acres

1992

5A

Low

    This TMDL completion date was updated to 2037.


2

Lake Merced

Lake & Reservoir

2202.100000  /  18050006
  • Oxygen, Dissolved
    • A Source Unknown

308 Acres

2014

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • pH
    • A Source Unknown

308 Acres

2002

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037.


2

Lake Merritt

Lake & Reservoir

2204.200400  /  18050004
  • Oxygen, Dissolved
    • A Source Unknown

148 Acres

2024

5A

High

  • Trash
    • A Source Unknown

148 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037.


2

Lake Temescal

Lake & Reservoir

 /  18050002
  • Mercury
    • A Source Unknown

9.4 Acres

2024

5A

Low



2

Las Trampas Creek subwatershed (Contra Costa County, tributary to Walnut Creek)

River & Stream

2207.320101, 2207.320102, 2207.320202  /  18050001
  • Benthic Community Effects
    • A Source Unknown

18 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

18 Miles

2024

5A

Low



2

Laurel Creek (San Mateo County)

River & Stream

2204.400303, 2204.400400  /  18050004
  • Benthic Community Effects
    • A Source Unknown

5.4 Miles

2024

5A

Low

  • Bifenthrin
    • Other Urban Runoff
    • Surface Runoff

5.4 Miles

2024

5B


2007
  • Diazinon
    • A Source Unknown

5.4 Miles

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

5.4 Miles

2024

5B


2007
  • Toxicity
    • A Source Unknown

5.4 Miles

2024

5A

Low



2

Laurel Creek (Solano County)

River & Stream

2207.230101, 2207.230200  /  18050001
  • Benthic Community Effects
    • A Source Unknown

8.4 Miles

2024

5A

Low

  • Bifenthrin
    • Other Urban Runoff
    • Surface Runoff

8.4 Miles

2014

5B


2007
  • Oxygen, Dissolved
    • A Source Unknown
    • Agricultural Water Diversion

8.4 Miles

2024

5A

Low

  • Toxicity
    • Other Urban Runoff
    • Surface Runoff

8.4 Miles

2014

5B


2007


2

Lexington Reservoir

Lake & Reservoir

20540020  /  18050003
  • Mercury
    • A Source Unknown

350 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Lichau Creek (Sonoma County)

River & Stream

2206.300103, 2206.300400  / 
  • Indicator Bacteria
    • A Source Unknown
    • Agriculture

7.8 Miles

2024

5B


2021
  • Oxygen, Dissolved
    • A Source Unknown

7.8 Miles

2024

5A

Low



2

Los Gatos Creek, Lower

River & Stream

2205.400201,2205.400202,2205.400500  / 
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2024

5A

Low

  • Temperature, water
    • A Source Unknown

12 Miles

2014

5A

Low

    Lower Los Gatos Creek is the portion of the waterbody downstream of Lexington Reservoir.


2

Lower Crystal Springs Reservoir

Lake & Reservoir

2204.400302,2204.400303  /  18050004
  • Mercury
    • A Source Unknown

583 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Lynch Creek subwatershed (Sonoma County, tributary to Petaluma River)

River & Stream

2206.300103, 2206.300400  / 
  • Indicator Bacteria
    • A Source Unknown

7.7 Miles

2024

5B


2021
  • Oxygen, Dissolved
    • A Source Unknown

7.7 Miles

2024

5A

Low



2

Marlin Park

Coastal & Bay Shoreline

2204.400400  / 
  • Indicator Bacteria
    • A Source Unknown

0.09 Miles

2024

5A

High



2

Mission Creek Channel

Estuary

2204.400102  /  18050004
  • Ammonia
    • A Source Unknown

27 Acres

2002

5A

Low

    This TMDL completion date was updated to 2037
  • Chlordane
    • A Source Unknown

27 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

27 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037
  • Hydrogen Sulfide
    • A Source Unknown

27 Acres

2002

5A

Low

    This TMDL completion date was updated to 2037
  • Indicator Bacteria
    • A Source Unknown

27 Acres

2024

5A

Low

  • Lead
    • A Source Unknown

27 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037
  • Mercury
    • A Source Unknown

27 Acres

2002

5A

Low

    This TMDL completion date was updated to 2037
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

27 Acres

2002

5A

Low

    This TMDL completion date was updated to 2037
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

27 Acres

1800

5B


2010
  • Silver
    • A Source Unknown

27 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037
  • Zinc
    • A Source Unknown

27 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037.


2

Moraga Creek (Contra Costa County)

River & Stream

2204.200101, 2204.200103, 2206.600105  /  18050004
  • Toxicity
    • A Source Unknown

6.1 Miles

2024

5A

Low



2

Mt. Diablo Creek

River & Stream

2207.310102,2207.310103,2207.310104  /  18050001
  • Benthic Community Effects
    • A Source Unknown

14 Miles

2024

5A

Low

  • Diazinon
    • A Source Unknown

14 Miles

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Toxicity
    • A Source Unknown

14 Miles

2010

5A

Low

    This TMDL completion date was updated to 2037.


2

Napa River, Mare Island Strait

River & Stream

2206.100000  / 
  • Chlordane
    • A Source Unknown

3.8 Miles

2014

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

3.8 Miles

2014

5A

Low

    This TMDL completion date was updated to 2037
  • Mercury
    • A Source Unknown

3.8 Miles

2014

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3.8 Miles

2014

5B


2010
  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • A Source Unknown

3.8 Miles

2016

5A

Low

    This TMDL completion date was updated to 2037.


2

Napa River, tidal

River & Stream

2206.100000,2206.500405  / 
  • Indicator Bacteria
    • A Source Unknown

23 Miles

2024

5B


2006
  • Nutrients
    • Agriculture
    • Onsite Wastewater Systems (Septic Tanks)

23 Miles

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Nathanson Creek subwatershed (Sonoma County, tributary to Sonoma Creek)

River & Stream

2206.400201, 2206.400202  / 
  • Fipronil
    • Other Urban Runoff
    • Surface Runoff

9.5 Miles

2024

5B


2007
  • Indicator Bacteria
    • A Source Unknown

9.5 Miles

2024

5B


2008
  • Oxygen, Dissolved
    • A Source Unknown

9.5 Miles

2024

5A

Low

  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

9.5 Miles

2024

5B


2007


2

Nicasio Reservoir

Lake & Reservoir

 /  18050005
  • Mercury
    • A Source Unknown

862 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037.


2

Oakland Inner Harbor

Bay & Harbor

2204.200400  / 
  • Indicator Bacteria
    • A Source Unknown

448 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Oakland Inner Harbor (Fruitvale Site, part of SF Bay, Lower)

Bay & Harbor

2204.200400  /  18050004
  • Chlordane
    • A Source Unknown

0.14 Acres

1998

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

0.14 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

0.14 Acres

1998

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

0.14 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

0.14 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6,7,8-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

0.14 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

0.14 Acres

1992

5B


2008
    Current data indicate fish consumption and wildlife consumption impacted uses: health consumption advisory in effect for multiple fish species including striped bass and shark. Major source is historic: gold mining sediments and local mercury mining; most significant ongoing source is erosion and drainage from abandoned mines; moderate to low level inputs from point sources.
  • PCBs (Polychlorinated biphenyls) (sediment)
    • A Source Unknown

0.14 Acres

2016

5B


2010
    This listing covers non dioxin-like PCBs. Interim health advisory for fish; uncertainty regarding water column concentration data.
  • Selenium
    • A Source Unknown

0.14 Acres

1990

5A

Low

    Affected use is one branch of the food chain; most sensitive indicator is hatchability in nesting diving birds, significant contributions from oil refineries (control program in place) and agriculture (carried downstream by rivers); exotic species may have made food chain more susceptible to accumulation of selenium; health consumption advisory in effect for scaup and scoter (diving ducks). This TMDL completion date was updated to 2037.
  • Toxicity
    • A Source Unknown

0.14 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Oakland Inner Harbor (Pacific Dry-dock Yard 1 Site, part of SF Bay, Lower)

Bay & Harbor

2204.100000, 2204.200400  /  18050004
  • Chlordane
    • A Source Unknown

0.26 Acres

1998

5A

Low

    This listing was made by USEPA.
  • Copper
    • A Source Unknown

0.26 Acres

1800

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

0.26 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

0.26 Acres

1998

5A

Low

    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

0.26 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

0.26 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6,7,8-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

0.26 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Lead
    • A Source Unknown

0.26 Acres

1800

5A

Low

  • Mercury
    • A Source Unknown

0.26 Acres

1992

5B


2008
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

0.26 Acres

1800

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.26 Acres

1998

5B


2010
    This listing covers non dioxin-like PCBs. Interim health advisory for fish; uncertainty regarding water column concentration data.
  • Selenium
    • A Source Unknown

0.26 Acres

1990

5A

Low

    Affected use is one branch of the food chain; most sensitive indicator is hatchability in nesting diving birds, significant contributions from oil refineries (control program in place) and agriculture (carried downstream by rivers); exotic species may have made food chain more susceptible to accumulation of selenium; health consumption advisory in effect for scaup and scoter (diving ducks). This TMDL completion date was updated to 2037.
  • Zinc
    • A Source Unknown

0.26 Acres

1800

5A

Low



2

Oiger Ponds

Lake & Reservoir

2205.300501  /  18050003
  • Mercury
    • A Source Unknown

128 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Oyster Point Marina (San Francisco Bay, Lower)

Coastal & Bay Shoreline

2204.100000,2204.400202  /  18050004
  • Indicator Bacteria
    • A Source Unknown

0.31 Miles

2014

5A

High



2

Pacific Ocean Montara State Beach

Coastal & Bay Shoreline

2202.210001,2202.210002,2202.220003  /  18050006
  • Indicator Bacteria
    • A Source Unknown

0.81 Miles

2014

5A

Low



2

Pacific Ocean at Baker Beach

Coastal & Bay Shoreline

2201.300004,2202.100000,2203.100000,2203.200202,2203.400000,2204.400102  /  18050002
  • Indicator Bacteria
    • A Source Unknown

1.1 Miles

2006

5A

Low



2

Pacific Ocean at Pillar Point

Coastal & Bay Shoreline

2202.210002  /  18050006
  • Mercury
    • A Source Unknown

0.63 Miles

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Paradise Cove Beach (San Francisco Bay, Central)

Coastal & Bay Shoreline

2203.100000,2203.200201  /  18050002
  • Indicator Bacteria
    • A Source Unknown

0.16 Miles

2014

5A

Low



2

Permanente Creek

River & Stream

2205.500201,2205.500400  /  18050003
  • Benthic Community Effects
    • A Source Unknown

14 Miles

2024

5A

Low

  • Diazinon
    • Urban Runoff/Storm Sewers

14 Miles

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Selenium
    • A Source Unknown

14 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

14 Miles

2010

5A

Low

  • Trash
    • A Source Unknown

14 Miles

2010

5C


2029


2

Petaluma River

River & Stream

2206.300200,2206.300400  /  18050002
  • Benthic Community Effects
    • A Source Unknown

22 Miles

2024

5A

Low

  • Diazinon
    • Other Urban Runoff
    • Surface Runoff

22 Miles

2002

5B


2007
    Data source: Abelli-Amen, Petaluma Tree Planters, 1999.
  • Fipronil
    • Other Urban Runoff
    • Surface Runoff

22 Miles

2024

5B


2007
  • Indicator Bacteria
    • Onsite Wastewater Systems (Septic Tanks)

22 Miles

2024

5B


2021
  • Nutrients
    • A Source Unknown

22 Miles

1998

5A

Low

    TMDL will be developed as part of ongoing watershed management effort. Additional monitoring and assessment needed. This TMDL completion date was updated to 2037.
  • Oxygen, Dissolved
    • A Source Unknown

22 Miles

2014

5A

Low

  • Sediment
    • A Source Unknown

22 Miles

2024

5A

Low

  • Trash
    • A Source Unknown

22 Miles

2010

5C


2029


2

Petaluma River (tidal portion)

River & Stream

2206.300400  /  18050002
  • Diazinon
    • A Source Unknown

1.8 Miles

2002

5A

Low

    This TMDL completion date was updated to 2037
  • Indicator Bacteria
    • Onsite Wastewater Systems (Septic Tanks)

1.8 Miles

2024

5B


2021
  • Nickel
    • A Source Unknown

1.8 Miles

2002

5A

Low

    Exceedance of California Toxic Rule dissolved criteria and National Toxic Rule total criteria; elevated water and sediment tissue levels. This TMDL completion date was updated to 2037.
  • Nutrients
    • A Source Unknown

1.8 Miles

2002

5A

Low

    TMDL will be developed as part of ongoing watershed management effort. Additional monitoring and assessment needed. This TMDL completion date was updated to 2037.


2

Pilarcitos Creek (below Pilarcitos Reservoir)

River & Stream

 /  18050006
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

11 Miles

2024

5A

Low



2

Pilarcitos Lake

Lake & Reservoir

2202.220003  /  18050006
  • Mercury
    • A Source Unknown

97 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Pomponio Creek

River & Stream

2202.400200  /  18050006
  • Indicator Bacteria
    • A Source Unknown

7 Miles

2014

5A

Low



2

Richardson Bay

Bay & Harbor

2203.100000,2203.200201,2203.200202  /  18050002
  • Chlordane
    • A Source Unknown

3855 Acres

1998

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3855 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

3855 Acres

1998

5A

Low

    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

3855 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

3855 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6, 7,8,-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Indicator Bacteria
    • A Source Unknown
    • Boat Discharges/Vessel Wastes
    • Marinas and Recreational Boating

3855 Acres

2014

5B


2009
  • Invasive Species
    • A Source Unknown

3855 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

3855 Acres

1992

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3855 Acres

1998

5B


2010
    This listing covers non dioxin-like PCBs. Interim health advisory for fish in place.
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

3855 Acres

1998

5B


2010
    The specific dioxin like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5,-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.


2

Sacramento San Joaquin Delta

Estuary

2207.250000, 2207.260000, 2207.340100, 2207.340200, 2207.400100, 2207.400200, 5510.000000, 6544.000000  /  18050001
  • Chlordane
    • A Source Unknown

582 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

582 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

582 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

582 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

582 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6, 7,8,-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

582 Acres

1998

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

582 Acres

1998

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

582 Acres

1998

5B


2010
    This listing covers non dioxin-like PCBs.Interim health advisory for fish.
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

582 Acres

1998

5B


2010
    The specific dioxin like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5,-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.
  • Selenium
    • A Source Unknown

582 Acres

1998

5B


2016


2

San Antonio Creek (Marin/Sonoma Co)

River & Stream

2206.300301,2206.300302,2206.300400,2206.300500  /  18050002
  • Benthic Community Effects
    • A Source Unknown

17 Miles

2024

5A

Low

  • Diazinon
    • Urban Runoff/Storm Sewers

17 Miles

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Indicator Bacteria
    • Onsite Wastewater Systems (Septic Tanks)

17 Miles

2024

5B


2021
  • Oxygen, Dissolved
    • A Source Unknown

17 Miles

2014

5A

Low



2

San Francisco Bay, Central

Bay & Harbor

2201.300004,2202.100000,2203.100000,2203.200101,2203.200102,2203.200201,2203.200202,2203.300001,2203.400000,2204.100000,(Total Count: 13)  /  18050004
  • Chlordane
    • A Source Unknown

113105 Acres

1998

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

113105 Acres

1998

5A

Low

  • Dieldrin
    • A Source Unknown

113105 Acres

1998

5A

Low

    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

113105 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

113105 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6,7,8-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

113105 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • Atmospheric Deposition
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Nonpoint Source
    • Resource Extraction

113105 Acres

1992

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

113105 Acres

1998

5B


2010
    This listing covers non dioxin-like PCBs.
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

113105 Acres

1998

5B


2010
    The specific dioxin like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5,-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.
  • Selenium
    • Major Industrial Point Source
    • See TMDL documentation

113105 Acres

1990

5B


2016
  • Trash
    • A Source Unknown

113105 Acres

2010

5A

Low

    This TMDL completion date was updated to 2037.


2

San Francisco Bay, Lower

Bay & Harbor

2204.100000,2204.200400,2204.400101,2204.400102,2204.400201,2204.400202,2204.400400,2205.100000,2205.200003  /  18050004
  • Chlordane
    • A Source Unknown

147374 Acres

1998

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

147374 Acres

1998

5A

Low

  • Dieldrin
    • A Source Unknown

147374 Acres

1998

5A

Low

    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

147374 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

147374 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6, 7,8,-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

147374 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

147374 Acres

1992

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

147374 Acres

1998

5B


2010
    This listing covers non dioxin-like PCBs. Interim health advisory for fish in place.
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

147374 Acres

1998

5B


2010
    The specific dioxin like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5,-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.
  • Trash
    • A Source Unknown

147374 Acres

2010

5A

Low

    This TMDL completion date was updated to 2037.


2

San Francisco Bay, South

Bay & Harbor

2204.100000, 2205.100000, 2205.200003, 2205.500400  /  18050003
  • Chlordane
    • A Source Unknown

1360 Acres

1990

5A

Low

    This listing was made by USEPA.
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1360 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

1360 Acres

1998

5A

Low

    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

1360 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

1360 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6,7,8-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

1360 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

1360 Acres

1992

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1360 Acres

1992

5B


2010
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

1360 Acres

1992

5B


2010
    The specific dioxin like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5,-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.
  • Selenium
    • A Source Unknown

1360 Acres

1998

5A

Low



2

San Geronimo Creek (Marin)

River & Stream

2201.130202, 2201.130203  / 
  • Indicator Bacteria
    • See TMDL documentation

5.2 Miles

2024

5B


2007
  • Oxygen, Dissolved
    • A Source Unknown

5.2 Miles

2024

5A

Low



2

San Gregorio Creek (San Mateo County)

River & Stream

2202.230001, 2202.230002, 2202.300002, 2202.300004, 2202.300004, 2202.400105, 2202.400200  /  18050006
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

Low

    A Water Quality Improvement Plan (Plan) has been developed to restore water quality by improving sediment and habitat conditions in San Gregorio Creek. The Plan examines the water quality problem, identifies sources of sediment contamination, and specifies actions to improve water quality. This plan will help with the portion of the pathogen loading coming from grazing. Moreover, Water Board staff are working on septic issues through San Mateo County's Local Area Management Plans for onsite wastewater treatement systems.
  • Sediment
    • Agriculture-grazing
    • Highway/Road/Bridge Construction
    • Land Development
    • Logging Road Construction/Maintenance
    • Water Diversions

11 Miles

2024





2

San Leandro Bay (part of SF Bay, Lower)

Bay & Harbor

2204.100000, 2204.200400  /  18050004
  • Chlordane
    • A Source Unknown

88 Acres

1998

5A

Low

    This listing was made by USEPA. This TMDL completion date was updated to 2037
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

88 Acres

1800

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

88 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

88 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

88 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6,7,8-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

88 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Lead
    • A Source Unknown

88 Acres

1800

5A

Low

  • Mercury
    • A Source Unknown

88 Acres

1992

5B


2008
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

88 Acres

1800

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • Other Urban Runoff

88 Acres

2024

5B


2010
  • Zinc
    • A Source Unknown

88 Acres

1800

5A

Low



2

San Leandro Creek, Lower

River & Stream

2204.200101,2204.200102,2204.200300,2204.200400  /  18050004
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2024

5A

Low

  • Chlordane
    • A Source Unknown

11 Miles

2010

5A

Low

  • Diazinon
    • Other Urban Runoff
    • Surface Runoff

11 Miles

1998

5B


2007
  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

11 Miles

2024

5B


2007
  • Toxicity
    • Other Urban Runoff
    • Surface Runoff

11 Miles

2010

5B


2007
  • Trash
    • A Source Unknown

11 Miles

2010

5C


2029


2

San Mateo Creek, Lower

River & Stream

2204.400201,2204.400303,2204.400400  /  18050004
  • Benthic Community Effects
    • A Source Unknown

7.4 Miles

2024

5A

Low

  • Chlordane
    • A Source Unknown

7.4 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7.4 Miles

2024

5A

Low

  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

7.4 Miles

2024

5B


2007
  • Toxicity
    • A Source Unknown

7.4 Miles

2010

5A

Low

    This waterbody was already listed for sediment toxicity in a previous listing round. Thus, this is not a new listing. The previous decision field is in error because it is referring to the previous decision for water toxicity. Now that water and sediment toxicity are combined, the current listing will be for toxicity, but it is important to keep in mind that the toxicity is for the sediment compartment.


2

San Pablo Bay

Bay & Harbor

2206.100000,2206.200003,2206.300400,2206.400201,2206.500405,2206.600104,2206.600201,2206.600202  /  18050002
  • Chlordane
    • A Source Unknown

110423 Acres

1998

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

110423 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

110423 Acres

1998

5A

Low

  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

110423 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

110423 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6, 7,8,-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

110423 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

110423 Acres

1990

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

110423 Acres

1998

5B


2010
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

110423 Acres

1998

5B


2010
    The specific dioxin like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5,-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.
  • Selenium
    • A Source Unknown
    • See TMDL documentation

110423 Acres

1990

5B


2016


2

San Pablo Reservoir

Lake & Reservoir

2206.600102  /  18050002
  • Chlordane
    • A Source Unknown

785 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

785 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037
  • Heptachlor epoxide
    • A Source Unknown

785 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

785 Acres

2002

5A

Low

    This TMDL completion date was updated to 2037.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

785 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.
  • Toxaphene
    • A Source Unknown

785 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

San Ramon Creek subwatershed (Contra Costa County, tributary to Walnut Creek)

River & Stream

2207.320201, 2207.320202, 2207.320206  / 
  • Benthic Community Effects
    • A Source Unknown

26 Miles

2024

5A

Low

  • Bifenthrin
    • Other Urban Runoff
    • Surface Runoff

26 Miles

2024

5B


2007
  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

26 Miles

2024

5B


2007
  • Toxicity
    • Other Urban Runoff
    • Surface Runoff

26 Miles

2024

5B


2007


2

San Tomas Aquino Creek (Santa Clara County)

River & Stream

2205.500400,2205.500500  /  18050003
  • Ammonia
    • A Source Unknown

33 Miles

2024

5A

Low

  • Benthic Community Effects
    • A Source Unknown

33 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

33 Miles

2024

5A

Low

  • Trash
    • A Source Unknown

33 Miles

2010

5C


2029


2

San Vicente Creek

River & Stream

2202.210002  /  18050006
  • Indicator Bacteria
    • A Source Unknown
    • Agriculture-animal
    • Onsite Wastewater Systems (Septic Tanks)

3.9 Miles

2014





2

Saratoga Creek

River & Stream

2205.500400,2205.500500  /  18050003
  • Benthic Community Effects
    • A Source Unknown

14 Miles

2024

5A

Low

  • Diazinon
    • A Source Unknown

14 Miles

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Trash
    • A Source Unknown

14 Miles

2010

5C


2029


2

Schell Creek (Sonoma County)

River & Stream

2206.400201  /  18050002
  • Indicator Bacteria
    • Onsite Wastewater Systems (Septic Tanks)

4.5 Miles

2024

5B


2008
  • Oxygen, Dissolved
    • A Source Unknown

4.5 Miles

2024

5A

Low



2

Shadow Cliffs Reservoir

Lake & Reservoir

2204.300900  /  18050004
  • Mercury
    • A Source Unknown

143 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

143 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Sonoma Creek, tidal

River & Stream

2206.400201  / 
  • Indicator Bacteria
    • Onsite Wastewater Systems (Septic Tanks)

9.9 Miles

2024

5B


2008
  • Nutrients
    • Agriculture
    • Onsite Wastewater Systems (Septic Tanks)

9.9 Miles

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Soulajule Reservoir

Lake & Reservoir

2201.120102  /  18050005
  • Mercury
    • Mine Tailings

49 Acres

2006

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • Atmospheric Deposition

49 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

South San Ramon Creek subwatershed (Contra Costa and Alameda counties, Tributary to Arroyo de la Laguna)

River & Stream

2204.300704, 2204.300705, 2204.300706, 2204.300801, 2204.300806, 2204.300900  / 
  • Ammonia
    • A Source Unknown

36 Miles

2024

5A

Low

  • Benthic Community Effects
    • A Source Unknown

36 Miles

2024

5A

Low

  • Bifenthrin
    • Other Urban Runoff
    • Surface Runoff

36 Miles

2024

5B


2007
  • Cyfluthrin
    • Other Urban Runoff
    • Surface Runoff

36 Miles

2024

5B


2007
  • Imidacloprid
    • Other Urban Runoff
    • Surface Runoff

36 Miles

2024

5B


2007
  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

36 Miles

2024

5B


2007


2

Stevens Creek

River & Stream

2205.500301,2205.500302,2205.500400  /  18050003
  • Aluminum
    • A Source Unknown

21 Miles

2024

5A

Low

  • Benthic Community Effects
    • A Source Unknown

21 Miles

2024

5A

Low

  • Diazinon
    • A Source Unknown
    • Other Urban Runoff
    • Surface Runoff

21 Miles

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Temperature, water
    • A Source Unknown

21 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

21 Miles

2006

5A

Low

  • Trash
    • A Source Unknown

21 Miles

2010

5C


2029
  • Turbidity
    • A Source Unknown

21 Miles

2024

5A

Low



2

Stevens Creek Reservoir

Lake & Reservoir

 /  18050003
  • Chlordane
    • A Source Unknown

83 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

83 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037
  • Mercury
    • A Source Unknown

83 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

83 Acres

2006

5A

Low

    This TMDL completion date was updated to 2037.


2

Suisun Bay

Bay & Harbor

2207.100000, 2207.210400, 2207.230200, 2207.240000, 2207.250000, 2207.310104, 2207.340100, 2207.400200  /  18050001
  • Chlordane
    • Agriculture

3806 Acres

1998

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3806 Acres

1998

5A

Low

    This TMDL completion date was updated to 2037
  • Dieldrin
    • A Source Unknown

3806 Acres

1998

5A

Low

    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • A Source Unknown

3806 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDD, 1,2,3,7,8-PeCDD, 1,2,3,4,7,8-HxCDD, 1,2,3,6,7,8-HxCDD, 1,2,3,7,8,9-HxCDD, 1,2,3,4,6,7,8-HpCDD, and OCDD. This listing was made by USEPA. This TMDL completion date was updated to 2037
  • Furan Compounds
    • A Source Unknown

3806 Acres

1998

5A

Low

    The specific compounds are 2,3,7,8-TCDF, 1,2,3,7,8-PeCDF, 2,3,4,7,8-PeCDF, 1,2,3,4,7,8-HxCDF, 1,2,3,6,7,8-HxCDF, 1,2,3,7,8,9-HxCDF, 2,3,4,6,7,8-HxCDF, 1,2,3,4,6,7,8-HpCDF, 1,2,3,4,7,8,9-HpCDF, and OCDF. This listing was made by USEPA. This TMDL completion date was updated to 2037.
  • Invasive Species
    • A Source Unknown

3806 Acres

2006

5A

Low

    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species. This TMDL completion date was updated to 2037.
  • Mercury
    • A Source Unknown

3806 Acres

1990

5B


2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3806 Acres

1998

5B


2010
    This listing covers non-dioxin-like PCBs. Interim health advisory for fish in place.
  • PCBs (Polychlorinated biphenyls) (dioxin-like)
    • A Source Unknown

3806 Acres

1998

5B


2010
    The specific dioxin-like compounds are 3,4,4,5-TCB (81), 3,3,3,3-TCB (77), 3,3,4,4,5-PeCB (126), 3,3,4,4,4,4-HxCB (169), 2,3,3,4,4-PeCB (105), 2,3,4,4,5-PeCB (114), 2,3,4,4,5-PeCB (118), 2,3,4,4,5-PeCB (123), 2,3,3,4,4,5-HxCB (156), 2,3,3,4,4,5-HxCB (157), 2,3,4,4,5,5-HxCB (167), 2,3,3,4,4,5,5-HpCB (189). This listing was made by USEPA.
  • Selenium
    • See TMDL documentation

3806 Acres

1990

5B


2016


2

Suisun Creek

River & Stream

2207.210400, 2207.220001, 2207.220002, 2207.220003, 2207.230200  /  18050001
  • Oxygen, Dissolved
    • A Source Unknown

23 Miles

2014

5A

Low

  • Temperature, water
    • A Source Unknown

23 Miles

2010

5A

Low



2

Suisun Marsh Wetlands

Wetland, Tidal

2207.100000, 2207.210301, 2207.210400, 2207.230200, 2207.240000, 2207.250000, 2207.260000  /  18050001
  • Mercury
    • Historic Land Management Activities

66339 Acres

2010

5B


2018
  • Nutrients
    • A Source Unknown

66339 Acres

1996

5A

Low

    Additional monitoring and assessment needed. This TMDL completion date was updated to 2037.
  • Organic Enrichment/Low Dissolved Oxygen
    • Historic Land Management Activities

66339 Acres

1996

5B


2018
  • Salinity/TDS/Chlorides
    • A Source Unknown

66339 Acres

1996

5A

Low

    Additional monitoring and assessment needed. This TMDL completion date was updated to 2037.
  • Temperature, water
    • A Source Unknown

66339 Acres

2024

5A

Low

    This listing only applies to Montezuma/Nurse Slough Complex


2

Suisun Slough

Estuary

2207.210400, 2207.230200  /  18050001
  • Diazinon
    • A Source Unknown

169 Acres

1998

5B


2007
    This listing was made by USEPA for the 1998 303(d) list. For 2006, diazinon was moved by USEPA from the 303(d) list to this being addressed list because of a completed USEPA approved TMDL.
  • Mercury
    • Historic Land Management Activities

169 Acres

2014

5B


2018
    Suisun Slough is part of Suisun Marsh so the TMDL for the Marsh will address impairments in associated sloughs.
  • Oxygen, Dissolved
    • Historic Land Management Activities

169 Acres

2014

5B


2018
    Suisun Slough is part of Suisun Marsh so slough impairments will be addressed by the TMDL for Suisun Marsh.
  • Temperature, water
    • A Source Unknown

169 Acres

2024

5A

Low



2

Tomales Bay

Bay & Harbor

1115.300002,1115.300002,2201.110000,2201.120301,2201.120302,2201.120303,2201.130301,2201.140000,2201.210002,2201.210002  /  18050005
  • Indicator Bacteria
    • Agriculture-animal
    • Onsite Wastewater Systems (Septic Tanks)

1297 Acres

2024

5B


2007
  • Mercury
    • A Source Unknown

1297 Acres

1992

5B


2012
  • Nutrients
    • A Source Unknown

1297 Acres

1992

5A

Low

    TMDL will be developed as part of ongoing watershed management effort. This TMDL completion date was updated to 2037.
  • Sediment
    • A Source Unknown

1297 Acres

2024

5A

Low



2

Unnamed Creek, Zone 6 Line G subwatershed (Alameda County, tributary to Laguna Creek)

River & Stream

2205.200003  / 
  • Benthic Community Effects
    • A Source Unknown

3.9 Miles

2024

5A

Low

  • Toxicity
    • Other Urban Runoff
    • Surface Runoff

3.9 Miles

2024

5B


2007


2

Upper San Leandro Reservoir

Lake & Reservoir

2204.200101,2204.200103  /  18050004
  • Mercury
    • A Source Unknown

758 Acres

2014

5A

Low

    This TMDL completion date was updated to 2037.


2

Vasona Lake

Lake & Reservoir

20540050  /  18050003
  • Chlordane
    • A Source Unknown

52 Acres

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

52 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

52 Acres

2014

5A

Low



2

Walker Creek

River & Stream

2201.110000,2201.120101,2201.120103,2201.120201,2201.120202,2201.120303  /  18050005
  • Indicator Bacteria
    • Agriculture-animal
    • Onsite Wastewater Systems (Septic Tanks)

17 Miles

2024

5B


2007
  • Mercury
    • Mine Tailings

17 Miles

1992

5B


2008
  • Nutrients
    • A Source Unknown

17 Miles

1992

5A

Low

    Tributary to Tomales Bay. TMDLs will be developed as part of evolving watershed management effort. Additional monitoring and assessment needed. This TMDL completion date was updated to 2037.
  • Sediment
    • A Source Unknown

17 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

17 Miles

2014

5A

Low



2

Walnut Creek

River & Stream

2207.310104, 2207.320202  /  18050001
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2024

5A

Low

  • Bifenthrin
    • Other Urban Runoff
    • Surface Runoff

12 Miles

2014

5B


2007
  • Diazinon
    • A Source Unknown
    • Other Urban Runoff
    • Surface Runoff

12 Miles

1998

5B


2007
  • Pyrethroids
    • Other Urban Runoff
    • Surface Runoff

12 Miles

2024

5B


2007
  • Toxicity
    • Other Urban Runoff
    • Surface Runoff

12 Miles

2014

5B


2007


2

Washington Creek subwatershed (Sonoma County, tributary to Petaluma River)

River & Stream

2206.300103, 2206.300400  / 
  • Indicator Bacteria
    • Onsite Wastewater Systems (Septic Tanks)

8.4 Miles

2024

5B


2021
  • Oxygen, Dissolved
    • A Source Unknown

8.4 Miles

2024

5A

Low



3

Alamo Creek

River & Stream

31230071  /  18060007
  • Toxicity
    • A Source Unknown

9 Miles

2014

5A

Low



3

Alisal Creek (Monterey County)

River & Stream

3309.110000,3309.200003,3309.700903,3309.700905  /  18060011
  • Ammonia
    • Agriculture
    • Grazing-Related Sources

13 Miles

2014

5B


2015
  • Bensulide
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B


2018
  • Chlorophyll-a
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources

13 Miles

2010

5B


2015
  • Chlorpyrifos
    • Agriculture

13 Miles

2020

5B


2011
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B


2018
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B


2018
  • Dimethoate
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Imidacloprid
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

13 Miles

2020

5A

High

  • Methomyl
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Nitrate
    • Agriculture

13 Miles

2002

5B


2015
  • Organophosphate Pesticides
    • Agriculture

13 Miles

2020

5B


2011
  • Oxyfluorfen
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B


2018
  • Sodium
    • A Source Unknown

13 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

13 Miles

2014

5A

High



3

Alisal Slough (Monterey County)

River & Stream

3309.110000  /  18060011
  • Ammonia
    • Agriculture
    • Grazing-Related Sources

11 Miles

2014

5B


2015
  • Diazinon
    • Agriculture

11 Miles

2010

5B


2011
  • Imidacloprid
    • No Source Analysis Available

11 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

11 Miles

2014

5A

High

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

11 Miles

2010

5B


2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

11 Miles

2014

5A

High



3

Aptos Creek

River & Stream

3304.130201,3304.130203,3304.130204  /  18060001
  • Aluminum
    • No Source Analysis Available

8.6 Miles

2020

5A

Low

  • Benthic Community Effects
    • No Source Analysis Available

8.6 Miles

2020

5A

Low

  • Indicator Bacteria
    • Collection System Failure
    • Natural Sources
    • Other Urban Runoff
    • Urban Runoff/Storm Sewers

8.6 Miles

2014

5B


2011
  • Sedimentation/Siltation
    • A Source Unknown

8.6 Miles

1990

5A

Low



3

Arana Gulch

River & Stream

3304.120501,3304.120503  /  18060001
  • Chlorpyrifos
    • A Source Unknown

4.8 Miles

2010

5B


2015
  • Escherichia coli (E. coli)
    • No Source Analysis Available

4.8 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

4.8 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

4.8 Miles

2010

5A

Low



3

Arroyo Burro Creek

River & Stream

3315.320003  /  18060013
  • Arsenic
    • No Source Analysis Available

6.3 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.3 Miles

2010

5A

Low

  • Nitrate
    • No Source Analysis Available

6.3 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

6.3 Miles

2014

5A

Low

  • Selenium
    • No Source Analysis Available

6.3 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

6.3 Miles

2014

5A

Low



3

Arroyo De La Cruz Lagoon

River & Stream

3310.120003  / 
  • Copper
    • No Source Analysis Available

0.51 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

0.51 Miles

2014

5A

Low

  • Total Coliform
    • No Source Analysis Available

0.51 Miles

2020

5A

Low



3

Arroyo Grande Creek (below Lopez Lake)

River & Stream

3310.310104,3310.310203,3310.310205,3310.310206  /  18060006
  • Benthic Community Effects
    • No Source Analysis Available

13 Miles

2014

5A

Low

  • Cadmium
    • No Source Analysis Available

13 Miles

2010

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

13 Miles

2014

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

13 Miles

2010

5A

Low

  • Molybdenum
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Nickel
    • No Source Analysis Available

13 Miles

2010

5A

Low

  • Nitrate
    • No Source Analysis Available

13 Miles

2010

5A

Low

  • Pyrethroids
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Selenium
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

13 Miles

2014

5A

Low

  • pH
    • No Source Analysis Available

13 Miles

2010

5A

Low



3

Arroyo Paredon

River & Stream

3315.340003,3315.340004  /  18060013
  • Boron
    • No Source Analysis Available

5.3 Miles

2006

5A

Low

  • Chloride
    • No Source Analysis Available

5.3 Miles

2010

5A

Low

  • Copper
    • No Source Analysis Available

5.3 Miles

2010

5A

Low

  • Diazinon
    • Agriculture

5.3 Miles

2010

5B


2013
  • Fecal Coliform
    • No Source Analysis Available

5.3 Miles

2010

5A

Low

  • Nickel
    • No Source Analysis Available

5.3 Miles

2010

5A

Low

  • Nitrate
    • Agriculture

5.3 Miles

2006

5B


2014
  • Oxygen, Dissolved
    • No Source Analysis Available

5.3 Miles

2014

5A

Low

  • Selenium
    • No Source Analysis Available

5.3 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

5.3 Miles

2010

5A

Low

  • Specific Conductivity
    • No Source Analysis Available

5.3 Miles

2014

5A

Low

  • Temperature, water
    • No Source Analysis Available

5.3 Miles

2020

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

5.3 Miles

2014

5B


2013
  • pH
    • No Source Analysis Available

5.3 Miles

2010

5A

Low



3

Arroyo Seco River

River & Stream

3309.300000,3309.600301,3309.600302,3309.600303,3309.600306,3309.600307,3309.600308,3309.600403  /  18060005
  • Temperature, water
    • No Source Analysis Available

43 Miles

2010

5A

Low

    Impaired reach is from the confluence with Tassajara Creek downstream to the confluence with the Salinas River.
  • pH
    • No Source Analysis Available

43 Miles

2010

5A

Low



3

Atascadero Creek (San Luis Obispo County)

River & Stream

3309.811404  /  18060005
  • Escherichia coli (E. coli)
    • No Source Analysis Available

5.5 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

5.5 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

5.5 Miles

2020

5A

Low



3

Atascadero Creek (Santa Barbara County)

River & Stream

3315.310001,3315.310003  /  18060013
  • Arsenic
    • No Source Analysis Available

6.2 Miles

2010

5A

Low

  • Benthic Community Effects
    • A Source Unknown

6.2 Miles

2014

5A

Low

  • Chloride
    • No Source Analysis Available

6.2 Miles

2010

5A

Low

  • Enterococcus
    • A Source Unknown

6.2 Miles

2010

5A

Low

  • Manganese
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • Nitrate
    • No Source Analysis Available

6.2 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

6.2 Miles

2014

5A

Low

  • Selenium
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

6.2 Miles

2010

5A

Low

  • Temperature, water
    • No Source Analysis Available

6.2 Miles

2010

5A

Low

  • Total Dissolved Solids
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

6.2 Miles

2014

5A

Low

  • pH
    • No Source Analysis Available

6.2 Miles

2010

5A

Low



3

Beach Road Ditch

River & Stream

3305.100301  /  18060002
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2010

5B


2016
  • Oxygen, Dissolved
    • A Source Unknown

3.4 Miles

2014

5A

High

  • Turbidity
    • A Source Unknown

3.4 Miles

2010

5A

Low

  • pH
    • A Source Unknown

3.4 Miles

2010

5A

Low



3

Bell Creek (Santa Barbara Co)

River & Stream

3315.100103  /  18060013
  • Escherichia coli (E. coli)
    • No Source Analysis Available

1 Miles

2014

5A

Low

  • Nitrate
    • Agriculture

1 Miles

2006

5B


2013
  • Selenium
    • No Source Analysis Available

1 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

1 Miles

2014

5A

Low



3

Bennett Slough

River & Stream

3306.000004  /  18060011
  • Chlorophyll-a
    • A Source Unknown

1.9 Miles

2010

5A

High

  • Oxygen, Dissolved
    • A Source Unknown

1.9 Miles

2014

5A

High

  • Turbidity
    • A Source Unknown

1.9 Miles

2010

5A

Low

  • pH
    • A Source Unknown

1.9 Miles

2010

5A

Low



3

Big Creek (Big Sur Coast)

River & Stream

3308.000501,3308.000503  /  18060006
  • pH
    • Natural Sources

6.6 Miles

2010

5A

Low



3

Blanco Drain

River & Stream

3309.110000  /  18060011
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

9.2 Miles

2014

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

9.2 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

9.2 Miles

2014

5A

Low

  • Diazinon
    • Agriculture

9.2 Miles

2010

5B


2011
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

9.2 Miles

2010

5B


2015
  • Selenium
    • No Source Analysis Available

9.2 Miles

2020

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

9.2 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

9.2 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

9.2 Miles

2010

5A

Low



3

Blosser Channel

River & Stream

3312.100300  /  18060008
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Groundwater Loadings
    • Natural Sources

2 Miles

2014

5B


2016
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

2 Miles

2014

5B


2015
  • Chlorpyrifos
    • Agriculture

2 Miles

2010

5B


2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture
    • Urban Runoff/Storm Sewers

2 Miles

2014

5B


2015
  • Diazinon
    • Agriculture

2 Miles

2010

5B


2016
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

2 Miles

2010

5B


2016
  • Permethrin
    • Agriculture
    • No Source Analysis Available
    • Urban Runoff/Storm Sewers

2 Miles

2014

5B


2014
  • Temperature, water
    • No Source Analysis Available

2 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

2 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

2 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

2 Miles

2010

5A

Low



3

Bradley Canyon Creek

River & Stream

3312.100204,3312.100300  /  18060008
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Groundwater Loadings
    • Natural Sources

20 Miles

2014

5B


2016
  • Chlorpyrifos
    • Agriculture

20 Miles

2014

5B


2015
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

20 Miles

2006

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

20 Miles

2014

5B


2016
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

20 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

20 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

20 Miles

2010

5A

Low



3

Bradley Channel

River & Stream

31210030  /  18060008
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

3.7 Miles

2014

5B


2016
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.7 Miles

2014

5B


2015
  • Chlorpyrifos
    • Agriculture

3.7 Miles

2010

5B


2015
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.7 Miles

2014

5B


2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture
    • Urban Runoff/Storm Sewers

3.7 Miles

2014

5B


2015
  • Diazinon
    • Agriculture

3.7 Miles

2010

5B


2015
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Urban Runoff/Storm Sewers

3.7 Miles

2014

5B


2013
  • Imidacloprid
    • No Source Analysis Available

3.7 Miles

2020

5A

High

  • Linuron
    • No Source Analysis Available

3.7 Miles

2020

5A

Low

  • Malathion
    • Agriculture

3.7 Miles

2014

5B


2015
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

3.7 Miles

2006

5B


2016
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

3.7 Miles

2020

5B


2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.7 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

3.7 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

3.7 Miles

2010

5A

Low



3

Branciforte Creek

River & Stream

3304.120501,3304.120503  /  18060001
  • Chlorpyrifos
    • A Source Unknown

9.9 Miles

2010

5B


2015
  • Enterococcus
    • Collection System Failure
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments
    • Urban Runoff/Storm Sewers

9.9 Miles

2010

5B


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

9.9 Miles

2010

5B


2011
  • Sedimentation/Siltation
    • Channel Erosion
    • Erosion/Siltation
    • Highway/Road/Bridge Construction
    • Hydromodification

9.9 Miles

2002

5B


2004
  • Toxicity
    • No Source Analysis Available

9.9 Miles

2014

5A

Low



3

Cachuma, Lake

Lake & Reservoir

3314.400101,3314.400102,3314.510504,3314.510605,3314.510702,3314.510800,3314.510901,3314.510902,3314.520000  /  18060010
  • Mercury
    • No Source Analysis Available

3169 Acres

2014

5A

Low



3

Camp Evers Creek

River & Stream

3304.120504  /  18060001
  • Escherichia coli (E. coli)
    • No Source Analysis Available

0.81 Miles

2014

5A

High

  • pH
    • A Source Unknown

0.81 Miles

2010

5A

Low



3

Canada De La Gaviota

River & Stream

3315.100301,3315.100302,3315.100403  /  18060013
  • Arsenic
    • No Source Analysis Available

7.1 Miles

2010

5A

Low

  • Boron
    • No Source Analysis Available

7.1 Miles

2006

5A

Low

  • Chloride
    • No Source Analysis Available

7.1 Miles

2010

5A

Low

  • Copper
    • No Source Analysis Available

7.1 Miles

2010

5A

Low

  • Nickel
    • No Source Analysis Available

7.1 Miles

2010

5A

Low

  • Selenium
    • No Source Analysis Available

7.1 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

7.1 Miles

2010

5A

Low



3

Canada Del Capitan

River & Stream

3315.100204  /  18060013
  • Toxicity
    • A Source Unknown

5.8 Miles

2014

5A

Low



3

Canada Del Refugio

River & Stream

3315.100202  /  18060013
  • Chloride
    • No Source Analysis Available

6.9 Miles

2010

5A

Low

  • Sodium
    • No Source Analysis Available

6.9 Miles

2010

5A

Low



3

Carmel River

River & Stream

3307.000101,3307.000103,3307.000104,3307.000302,3307.000401,3307.000403,3307.000404,3307.000405,3307.000502,3307.000503  /  18060012
  • Benthic Community Effects
    • No Source Analysis Available

39 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

39 Miles

2014

5A

Low

    The spatial extent of the impairment is limited to the reach between Highway 1 bridge and the Pacific Ocean.


3

Carnadero Creek (Uvas Creek below Bloomfield Road)

River & Stream

3305.300200  /  18060002
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

3.2 Miles

2010

5B


2010
  • Imidacloprid
    • No Source Analysis Available

3.2 Miles

2020

5A

Low

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

3.2 Miles

2010

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

3.2 Miles

2014

5B


2016
  • Toxicity
    • No Source Analysis Available

3.2 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

3.2 Miles

2010

5A

Low



3

Carneros Creek (Monterey County)

River & Stream

3306.000001,3306.000002,3306.000004,3306.000006  /  18060011
  • Ammonia
    • No Source Analysis Available

12 Miles

2014

5A

High

  • Chlorophyll-a
    • No Source Analysis Available

12 Miles

2010

5A

High

  • Chlorpyrifos
    • No Source Analysis Available

12 Miles

2020

5A

Low

  • Copper
    • No Source Analysis Available

12 Miles

2020

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

12 Miles

2020

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

12 Miles

2010

5A

Low

  • Nitrate
    • No Source Analysis Available

12 Miles

2010

5A

High

  • Organophosphate Pesticides
    • No Source Analysis Available

12 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

12 Miles

2014

5A

High

  • Turbidity
    • No Source Analysis Available

12 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

12 Miles

2010

5A

High



3

Carneros Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Enterococcus
    • A Source Unknown

6.1 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.1 Miles

2010

5A

Low

  • Nitrate
    • Agriculture

6.1 Miles

2010

5B


2014
  • Specific Conductivity
    • No Source Analysis Available

6.1 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

6.1 Miles

2014

5A

Low



3

Carpinteria Creek (below Gobernador Creek)

River & Stream

3315.340001,3315.340003  / 
  • Chloride
    • A Source Unknown

2.3 Miles

2014

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

2.3 Miles

2014

5A

Low

  • Nitrate
    • No Source Analysis Available

2.3 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

2.3 Miles

2014

5A

Low

  • Sodium
    • A Source Unknown

2.3 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

2.3 Miles

2014

5A

Low



3

Carpinteria Marsh (El Estero)

Estuary

3315.340003  /  18060013
  • Nutrients
    • No Source Analysis Available

201 Acres

1994

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

201 Acres

2014

5A

Low

  • Priority Organics
    • A Source Unknown

201 Acres

1992

5A

Low



3

Casmalia Canyon Creek

River & Stream

3313.000401,3313.000402  /  18060009
  • Sedimentation/Siltation
    • A Source Unknown

5 Miles

2006

5A

Low



3

Castroville Slough

Estuary

3309.120001  / 
  • Nitrate
    • No Source Analysis Available

17 Acres

2020

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

17 Acres

2020

5A

Low

  • pH
    • No Source Analysis Available

17 Acres

2020

5A

Low



3

Chesbro Reservoir

Lake & Reservoir

3305.200104,3305.300200  /  18060002
  • Mercury
    • No Source Analysis Available

235 Acres

2010

5A

Low



3

Cholame Creek

River & Stream

3317.000503,3317.000904,3317.000906  /  18060004
  • Boron
    • Natural Sources

8.8 Miles

2002

5B


2014
  • Chloride
    • A Source Unknown

8.8 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

8.8 Miles

2014

5A

Low

    The impaired reach length is 1 mile and centered on Bitterwater Road.
  • Sodium
    • A Source Unknown

8.8 Miles

2010

5A

Low

  • Specific Conductivity
    • A Source Unknown

8.8 Miles

2014

5A

Low



3

Chorro Creek

River & Stream

3310.220001,3310.220002,3310.220003,3310.270000  /  18060006
  • Benthic Community Effects
    • No Source Analysis Available

15 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

15 Miles

2014

5A

Low

  • Chromium
    • No Source Analysis Available

15 Miles

2014

5A

Low

  • Nickel
    • No Source Analysis Available

15 Miles

2010

5A

Low

  • Nutrients
    • Agriculture
    • Domestic Animals/Livestock
    • Flow Alteration/Regulation/Modification
    • Minor Municipal Point Source-dry and/or wet weather discharge
    • Natural Sources
    • Nonpoint Source

15 Miles

1998

5B


2007
  • Sedimentation/Siltation
    • Agriculture
    • Channel Erosion
    • Erosion/Siltation
    • Grazing-Related Sources
    • Highway/Road/Bridge Construction
    • Land Development

15 Miles

1990

5B


2004
  • Sodium
    • Municipal Point Sources

15 Miles

2014

5B


2007
  • Total Dissolved Solids
    • Municipal Point Sources

15 Miles

2014

5B


2007
  • Toxicity
    • No Source Analysis Available

15 Miles

2014

5A

Low



3

Chualar Creek

River & Stream

30919000  /  18060011
  • Ammonia
    • Acid Mine Drainage
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

14 Miles

2014

5B


2015
  • Bensulide
    • No Source Analysis Available

14 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B


2018
  • Chlorpyrifos
    • Agriculture

14 Miles

2010

5B


2011
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B


2018
  • Diazinon
    • Agriculture

14 Miles

2010

5B


2011
  • Dimethoate
    • No Source Analysis Available

14 Miles

2014

5A

Low

  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Illegal dumping
    • Natural Sources

14 Miles

2010

5B


2012
  • Fecal Coliform
    • Domestic Animals/Livestock
    • Illegal dumping
    • Natural Sources

14 Miles

2010

5B


2012
  • Imidacloprid
    • No Source Analysis Available

14 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

14 Miles

2014

5A

High

  • Methomyl
    • No Source Analysis Available

14 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

14 Miles

2010

5B


2015
  • Organophosphate Pesticides
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2020

5B


2011
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

14 Miles

2014

5B


2015
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B


2018
  • Temperature, water
    • No Source Analysis Available

14 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

14 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

14 Miles

2010

5A

Low



3

Chualar Creek, South Branch

River & Stream

30911010  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.1 Miles

2014

5B


2015
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.1 Miles

2010

5B


2015
  • Temperature, water
    • No Source Analysis Available

3.1 Miles

2014

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2020

5B


2018
  • Turbidity
    • No Source Analysis Available

3.1 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

3.1 Miles

2010

5A

Low



3

Chumash Creek

River & Stream

3310.220001  /  18060006
  • Escherichia coli (E. coli)
    • A Source Unknown

2.1 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

2.1 Miles

2028

5A

Low



3

Cieneguitas Creek

River & Stream

3315.310001,3315.310003  /  18060013
  • Enterococcus
    • A Source Unknown

3.2 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

3.2 Miles

2010

5A

Low

  • Nitrate
    • No Source Analysis Available

3.2 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

3.2 Miles

2014

5A

Low



3

Corcoran Lagoon

Wetland, Freshwater

3304.130104  /  18060001
  • Total Coliform
    • A Source Unknown

12 Acres

2010

5A

Low

  • pH
    • A Source Unknown

12 Acres

2010

5A

Low



3

Corralitos Creek

River & Stream

3305.100102,3305.100301  /  18060002
  • Turbidity
    • No Source Analysis Available

14 Miles

2010

5A

Low

    The impaired length is between Browns Valley Road and the confluence with Salsipuedes Creek.
  • pH
    • No Source Analysis Available

14 Miles

2010

5A

Low



3

Cuyama River (above Twitchell Reservoir)

River & Stream

31230060  /  18060007
  • Boron
    • No Source Analysis Available

96 Miles

2010

5A

Low

    The impaired length is between Twitchell Reservoir and the Highway 33 Bridge
  • Chloride
    • No Source Analysis Available

96 Miles

2010

5A

Low

    The impaired length is between Twitchell Reservoir and the Highway 33 Bridge.
  • Sodium
    • No Source Analysis Available

96 Miles

2010

5A

Low

    Impaired reach is from Twitchell Reservoir to Highway 33 bridge.
  • Specific Conductivity
    • No Source Analysis Available

96 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

96 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

96 Miles

2010

5A

Low



3

Dairy Creek

River & Stream

3310.220001,3310.220003  /  18060006
  • Enterococcus
    • A Source Unknown

4.7 Miles

2014

5A

Low

  • Escherichia coli (E. coli)
    • A Source Unknown

4.7 Miles

2010

5A

Low

    The impaired reach does not include the fenced area within the cattle exclusion (between stations DAM and DAU). Data indicate the reach within the fenced area is not impaired.
  • Oxygen, Dissolved
    • Grazing-Related Sources

4.7 Miles

2014

5A

Low



3

Devereux Creek

River & Stream

3315.310003  /  18060013
  • Oxygen, Dissolved
    • No Source Analysis Available

1.1 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

1.1 Miles

2010

5A

Low



3

Don Dahvee Creek (Monterey County)

River & Stream

3307.000502,3309.500402  /  18060012
  • Copper
    • No Source Analysis Available

1.9 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

1.9 Miles

2010

5A

Low

  • Lead
    • No Source Analysis Available

1.9 Miles

2010

5A

Low

  • Zinc
    • No Source Analysis Available
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

Low



3

Dos Pueblos Canyon Creek

River & Stream

3315.100101  /  18060013
  • Sodium
    • No Source Analysis Available

7.1 Miles

2010

5A

Low



3

El Encanto Creek (Phelps Ditch) (Santa Barbara County)

River & Stream

3315.310002,3315.310003  / 
  • Escherichia coli (E. coli)
    • No Source Analysis Available

2.7 Miles

2020

5A

Low

  • Nitrate
    • No Source Analysis Available

2.7 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

2.7 Miles

2020

5A

Low

  • pH
    • No Source Analysis Available

2.7 Miles

2020

5A

Low



3

Elkhorn Slough

Estuary

3306.000002,3306.000003,3306.000004,3309.120002  /  18060011
  • Copper
    • No Source Analysis Available

3180 Acres

2020

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

3180 Acres

2020

5A

Low

  • Dieldrin
    • No Source Analysis Available

3180 Acres

2020

5A

Low

  • Nitrate
    • No Source Analysis Available

3180 Acres

2014

5A

High

  • Oxygen, Dissolved
    • No Source Analysis Available

3180 Acres

2014

5A

High

  • Pesticides
    • A Source Unknown

3180 Acres

1990

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

3180 Acres

1996

5A

Low

  • Total Coliform
    • No Source Analysis Available

3180 Acres

2010

5A

Low

  • pH
    • No Source Analysis Available

3180 Acres

2010

5A

High



3

Espinosa Slough

River & Stream

3309.110000  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

1 Miles

2014

5B


2015
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

1 Miles

2020

5B


2018
  • Diazinon
    • Agriculture

1 Miles

2010

5B


2011
  • Malathion
    • No Source Analysis Available

1 Miles

2014

5A

High

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

1 Miles

2010

5B


2015
  • Pesticides
    • A Source Unknown

1 Miles

1996

5A

Low

  • Priority Organics
    • A Source Unknown

1 Miles

1996

5A

Low

  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

1 Miles

2020

5B


2018
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

1 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

1 Miles

2010

5A

High

  • pH
    • No Source Analysis Available

1 Miles

2010

5A

Low



3

Estrella River

River & Stream

3309.811904,3317.000503,3317.000507,3317.000604,3317.000605,3317.000606,3317.000701,3317.000704,3317.000706,3317.000708,(Total Count: 11)  /  18060004
  • Boron
    • Natural Sources

29 Miles

2010

5B


2014
  • Chloride
    • No Source Analysis Available

29 Miles

2010

5A

Low

    The water bearing formations in this watershed are Alluvium and Cuyama Morales Formations. These formations are likely to contribute to elevated salt levels and pH in the surface water and therefore this may be a natural condition.
  • Escherichia coli (E. coli)
    • No Source Analysis Available

29 Miles

2010

5A

Low

  • Sodium
    • No Source Analysis Available

29 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

29 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

29 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

29 Miles

2010

5A

Low



3

Franklin Creek (Santa Barbara County)

River & Stream

3315.340003,3315.340004  /  18060013
  • Aluminum
    • No Source Analysis Available

2.9 Miles

2020

5A

Low

  • Chlorpyrifos
    • No Source Analysis Available

2.9 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

2.9 Miles

2010

5A

Low

  • Imidacloprid
    • No Source Analysis Available

2.9 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Construction/Land Development
    • Natural Sources
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

2.9 Miles

2006

5B


2019
  • Selenium
    • No Source Analysis Available

2.9 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

2.9 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

2.9 Miles

2014

5A

Low

  • pH
    • No Source Analysis Available

2.9 Miles

2010

5A

Low



3

Furlong Creek

River & Stream

3305.300200,3305.400304  /  18060002
  • Escherichia coli (E. coli)
    • No Source Analysis Available

8.5 Miles

2010

5A

High

  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

8.5 Miles

2010

5B


2010
  • Imidacloprid
    • No Source Analysis Available

8.5 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

8.5 Miles

2010

5B


2016
  • Selenium
    • No Source Analysis Available

8.5 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

8.5 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

8.5 Miles

2010

5A

Low



3

Gabilan Creek

River & Stream

3309.110000,3309.200002,3309.200003,3309.700902  /  18060005
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

9.5 Miles

2014

5B


2015
  • Benthic Community Effects
    • No Source Analysis Available

9.5 Miles

2020

5A

Low

  • Copper
    • No Source Analysis Available

9.5 Miles

2020

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

9.5 Miles

2010

5A

Low

  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Transient encampments
    • Urban Runoff/Storm Sewers

9.5 Miles

2002

5B


2012
  • Imidacloprid
    • No Source Analysis Available

9.5 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

9.5 Miles

2006

5B


2015
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

9.5 Miles

2014

5B


2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

9.5 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

9.5 Miles

2010

5A

High

  • pH
    • No Source Analysis Available

9.5 Miles

2010

5A

Low



3

Glen Annie Canyon

River & Stream

3315.310002, 3315.310003  / 
  • Enterococcus
    • A Source Unknown

4.8 Miles

2014

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

4.8 Miles

2014

5A

Low

  • Nitrate
    • Agriculture

4.8 Miles

2014

5B


2014
  • Oxygen, Dissolved
    • No Source Analysis Available

4.8 Miles

2014

5A

Low

  • Selenium
    • No Source Analysis Available

4.8 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

4.8 Miles

2014

5A

Low



3

Goleta Slough/Estuary

Estuary

3315.310003  /  18060013
  • Enterococcus
    • No Source Analysis Available

167 Acres

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown
    • Natural Sources
    • Urban Runoff/Storm Sewers

167 Acres

2014

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

167 Acres

2014

5A

Low

  • Priority Organics
    • A Source Unknown

167 Acres

1990

5A

Low

  • pH
    • No Source Analysis Available

167 Acres

2010

5A

Low



3

Greene Valley Creek (Santa Barbara County)

River & Stream

3312.100300  /  18060008
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.9 Miles

2014

5B


2016
  • Chlorpyrifos
    • Agriculture

3.9 Miles

2010

5B


2015
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

3.9 Miles

2014

5B


2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture
    • Urban Runoff/Storm Sewers

3.9 Miles

2014

5B


2015
  • Malathion
    • Agriculture

3.9 Miles

2014

5B


2015
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.9 Miles

2010

5B


2016
  • Selenium
    • No Source Analysis Available

3.9 Miles

2020

5A

Low

  • Temperature, water
    • No Source Analysis Available

3.9 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.9 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

3.9 Miles

2010

5A

Low



3

Harkins Slough

River & Stream

3305.100301,3305.100303  /  18060002
  • Chlorophyll-a
    • No Source Analysis Available

7.3 Miles

2010

5A

High

  • Indicator Bacteria
    • A Source Unknown
    • See TMDL documentation

7.3 Miles

2014

5B


2007
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

7.3 Miles

2014

5B


2016
  • Toxicity
    • No Source Analysis Available

7.3 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

7.3 Miles

2010

5A

Low



3

Hartnell Gulch West Fork (Monterey County)

River & Stream

3309.500402  / 
  • Escherichia coli (E. coli)
    • No Source Analysis Available

1 Miles

2020

5A

Low



3

Jalama Creek

River & Stream

3315.100501,3315.100502  /  18060013
  • Chloride
    • Natural Sources

11 Miles

2010

5B


2013
  • Escherichia coli (E. coli)
    • No Source Analysis Available

11 Miles

2010

5A

Low

  • Sodium
    • Natural Sources

11 Miles

2010

5B


2013


3

Jameson Lake

Lake & Reservoir

3314.510405  /  18060010
  • Mercury
    • No Source Analysis Available

118 Acres

2014

5A

Low



3

Laguna Lake

Lake & Reservoir

3310.240102  / 
  • Ammonia
    • No Source Analysis Available

102 Acres

2020

5A

Low

  • Microcystins
    • No Source Analysis Available

102 Acres

2024

5A

Low



3

Las Tablas Creek

River & Stream

3309.811201,3309.811202,3309.811203,3309.811205  /  18060005
  • Metals
    • Inactive Mining

5.5 Miles

1990

5A

Low



3

Las Tablas Creek, North Fork

River & Stream

3309.811205  /  18060005
  • Metals
    • Inactive Mining

6.9 Miles

1990

5A

Low



3

Las Tablas Creek, South Fork

River & Stream

3309.811205  /  18060006
  • Metals
    • Inactive Mining

4.8 Miles

1990

5A

Low



3

Las Vegas Creek

River & Stream

3315.310002,3315.310003  / 
  • Escherichia coli (E. coli)
    • No Source Analysis Available

3.1 Miles

2020

5A

Low



3

Limekiln Creek

River & Stream

3308.000502  /  18060006
  • pH
    • No Source Analysis Available

3.5 Miles

2010

5A

Low



3

Little Oso Flaco Creek

River & Stream

3312.100300  /  18060008
  • Benthic Community Effects
    • No Source Analysis Available

2.2 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

2.2 Miles

2020

5B


2015
  • Imidacloprid
    • No Source Analysis Available

2.2 Miles

2020

5A

High

  • Malathion
    • Agriculture

2.2 Miles

2014

5B


2015
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.2 Miles

2010

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.2 Miles

2014

5B


2016
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

2.2 Miles

2020

5B


2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

2.2 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

2.2 Miles

2010

5A

Low



3

Llagas Creek (above Chesbro Reservoir)

River & Stream

3305.200103,3305.200104  /  18060002
  • Temperature, water
    • No Source Analysis Available

9.4 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

9.4 Miles

2010

5A

Low



3

Llagas Creek (below Chesbro Reservoir)

River & Stream

30530020  /  18060002
  • Benthic Community Effects
    • No Source Analysis Available

19 Miles

2020

5A

Low

  • Chloride
    • A Source Unknown

19 Miles

2002

5A

Low

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

19 Miles

2010

5B


2013
  • Copper
    • No Source Analysis Available

19 Miles

2020

5A

Low

  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

19 Miles

2010

5A

Low

  • Manganese
    • No Source Analysis Available

19 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

19 Miles

2014

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

19 Miles

2014

5B


2016
  • Sedimentation/Siltation
    • Agriculture-grazing
    • Habitat Modification
    • Hydromodification
    • Irrigated Crop Production
    • Land Development
    • Resource Extraction
    • Silviculture

19 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).
  • Selenium
    • No Source Analysis Available

19 Miles

2020

5A

Low

  • Sodium
    • A Source Unknown
    • Nonpoint Source

19 Miles

2002

5A

Low

    Impaired section for Sodium is located downstream of confluence with Miller Slough (approximately 1 mile of stream near Southside Drive).
  • Specific Conductivity
    • No Source Analysis Available

19 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

19 Miles

2002

5A

Low

    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).
  • Toxicity
    • Agriculture

19 Miles

2014

5B


2013
  • Turbidity
    • No Source Analysis Available

19 Miles

2010

5A

Low



3

Lockhart Gulch

River & Stream

3304.120401  /  18060001
  • Oxygen, Dissolved
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • pH
    • A Source Unknown

2.8 Miles

2010

5A

Low



3

Lopez Lake

Lake & Reservoir

3310.310101,3310.310104  /  18060006
  • Anatoxin-A
    • No Source Analysis Available

569 Acres

2024

5A

Low



3

Los Berros Creek

River & Stream

3310.310202,3310.310203  /  18060008
  • Chloride
    • A Source Unknown

14 Miles

2010

5A

Low

  • Nitrate
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

14 Miles

2010

5B


2012
  • Sodium
    • A Source Unknown

14 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

14 Miles

2014

5A

Low



3

Los Osos Creek (Los Osos to Los Osos Creek Estuary)

River & Stream

3310.230001  / 
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

3.8 Miles

2014

5B


2005
  • Oxygen, Dissolved
    • A Source Unknown

3.8 Miles

2014

5A

Low

    This listing was made by USEPA.
  • Sedimentation/Siltation
    • Erosion/Siltation

3.8 Miles

2014

5B


2004


3

Los Osos Creek (upstream of Los Osos)

River & Stream

3310.230001  /  18060006
  • Oxygen, Dissolved
    • No Source Analysis Available

6.1 Miles

2014

5A

Low



3

Los Osos Creek Estuary

River & Stream

3310.230001,3310.230002,3310.230003  / 
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

0.99 Miles

2014

5B


2005
  • Nitrogen, Nitrate
    • Agriculture
    • Grazing-Related Sources

0.99 Miles

2020

5B


2005
  • Oxygen, Dissolved
    • No Source Analysis Available

0.99 Miles

2014

5A

Low

    This listing was made by USEPA.
  • Turbidity
    • No Source Analysis Available

0.99 Miles

2014

5A

Low



3

Love Creek

River & Stream

3304.120201  /  18060001
  • Sedimentation/Siltation
    • A Source Unknown

3.8 Miles

2002

5A

Low



3

Main Street Channel

River & Stream

3312.100300  /  18060008
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B


2016
  • Arsenic
    • No Source Analysis Available

3.3 Miles

2020

5A

Low

  • Benthic Community Effects
    • No Source Analysis Available

3.3 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B


2015
  • Chlorpyrifos
    • Agriculture

3.3 Miles

2010

5B


2015
  • Copper
    • No Source Analysis Available

3.3 Miles

2020

5A

Low

  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B


2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B


2015
  • Diazinon
    • Agriculture

3.3 Miles

2010

5B


2015
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B


2013
    The spatial extent of this listing is limited to sampling station 312MSS and downstream. Upstream of station 312MSS, the salinity is above the salinity threshold for the use of the E. coli water quality objective.
  • Imidacloprid
    • No Source Analysis Available

3.3 Miles

2020

5A

High

  • Linuron
    • No Source Analysis Available

3.3 Miles

2020

5A

Low

  • Malathion
    • Agriculture

3.3 Miles

2014

5B


2015
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

3.3 Miles

2002

5B


2016
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B


2015
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2020

5B


2015
  • Temperature, water
    • No Source Analysis Available

3.3 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

3.3 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

3.3 Miles

2010

5A

Low



3

Maria Ygnacio Creek

River & Stream

3315.310001,3315.310003  /  18060013
  • Enterococcus
    • A Source Unknown

7.2 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

7.2 Miles

2010

5A

Low

  • Sodium
    • No Source Analysis Available

7.2 Miles

2010

5A

Low

  • Turbidity
    • No Source Analysis Available

7.2 Miles

2010

5A

Low



3

McEnery Spring

River & Stream

3304.120402  /  18060001
  • pH
    • A Source Unknown

0.09 Miles

2010

5A

Low



3

McGowan Ditch

River & Stream

3305.100301  /  18060002
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

2.5 Miles

2014

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

2.5 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

2.5 Miles

2014

5A

Low

  • Nitrate
    • A Source Unknown

2.5 Miles

2010

5A

Low

  • Oxyfluorfen
    • No Source Analysis Available

2.5 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

2.5 Miles

2014

5A

Low



3

Merrit Ditch

River & Stream

3309.110000  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

0.45 Miles

2014

5B


2015
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2020

5B


2018
  • Clothianidin
    • No Source Analysis Available

0.45 Miles

2020

5A

Low

  • Copper
    • No Source Analysis Available

0.45 Miles

2020

5A

Low

  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2020

5B


2018
  • Diazinon
    • Agriculture

0.45 Miles

2010

5B


2011
  • Escherichia coli (E. coli)
    • No Source Analysis Available

0.45 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

0.45 Miles

2014

5A

High

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

0.45 Miles

2010

5B


2015
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2020

5B


2018
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2020

5B


2018
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

0.45 Miles

2010

5A

High

  • pH
    • No Source Analysis Available

0.45 Miles

2010

5A

Low



3

Millers Canal

River & Stream

30530020  /  18060002
  • Aluminum
    • No Source Analysis Available

3.3 Miles

2024

5A

Low

  • Arsenic
    • No Source Analysis Available

3.3 Miles

2020

5A

Low

  • Chlorophyll-a
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.3 Miles

2010

5A

High

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.3 Miles

2010

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.3 Miles

2014

5B


2016
  • Selenium
    • No Source Analysis Available

3.3 Miles

2020

5A

Low

  • Temperature, water
    • No Source Analysis Available

3.3 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

3.3 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

3.3 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

3.3 Miles

2010

5A

Low



3

Mission Creek (Santa Barbara County)

River & Stream

3315.320001  /  18060013
  • Chlordane
    • No Source Analysis Available

8.7 Miles

2014

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

8.7 Miles

1992

5A

Low

  • Fecal Coliform
    • No Source Analysis Available

8.7 Miles

1992

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

8.7 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

8.7 Miles

2014

5A

Low



3

Monterey Harbor

Bay & Harbor

3307.000502,3309.500401,3309.500402  /  18060012
  • Arsenic
    • A Source Unknown

114 Acres

2010

5A

Low

  • Copper
    • A Source Unknown

114 Acres

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

114 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

114 Acres

2014

5A

Low

  • Toxicity
    • A Source Unknown

114 Acres

2014

5A

Low



3

Moore Creek

River & Stream

3304.110301,3304.120503  /  18060001
  • Escherichia coli (E. coli)
    • No Source Analysis Available

3.6 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

3.6 Miles

2014

5A

Low

  • Specific Conductivity
    • No Source Analysis Available

3.6 Miles

2014

5A

Low

  • pH
    • No Source Analysis Available

3.6 Miles

2010

5A

Low



3

Moro Cojo Slough (Monterey County)

Estuary

3309.120001  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

171 Acres

2014

5B


2015
  • Copper
    • No Source Analysis Available

171 Acres

2020

5A

Low

  • Nickel
    • No Source Analysis Available

171 Acres

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

171 Acres

2014

5B


2015
    There is some evidence that the impairment is limited to the lower Slough, downstream of monitoring station 309-MC-SAL-2, however additional nitrate and biostimulatory response data are necessary to confirm that the upstream reach meets nitrate and biostimulatory TMDLs and water quality objectives.
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

171 Acres

1800

5B


2015
  • Pesticides
    • A Source Unknown

171 Acres

2002

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

171 Acres

2002

5A

Low

  • Selenium
    • No Source Analysis Available

171 Acres

2020

5A

Low

  • Total Coliform
    • No Source Analysis Available

171 Acres

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

171 Acres

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

171 Acres

2010

5A

Low

  • pH
    • No Source Analysis Available

171 Acres

2010

5A

Low



3

Morro Bay

Bay & Harbor

3310.210000,3310.220002,3310.230002,3310.270000  /  18060006
  • Arsenic
    • No Source Analysis Available

2971 Acres

1800

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

2971 Acres

2006

5A

Low

  • Sedimentation/Siltation
    • Agriculture
    • Erosion/Siltation
    • Grazing-Related Sources
    • Habitat Modification
    • Highway/Road/Bridge Construction
    • Land Development

2971 Acres

1994

5B


2004


3

Moss Landing Harbor

Bay & Harbor

3305.100301,3306.000004,3306.000005,3309.110000,3309.120001  /  18060011
  • Arsenic
    • No Source Analysis Available

188 Acres

2010

5A

Low

  • Chlorpyrifos
    • Agriculture

188 Acres

2010

5B


2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

188 Acres

2014

5A

Low

  • Dieldrin
    • No Source Analysis Available

188 Acres

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

188 Acres

2014

5A

Low

  • Nickel
    • A Source Unknown

188 Acres

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

188 Acres

2014

5A

High

  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

188 Acres

2014

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

188 Acres

1996

5A

Low

  • Toxicity
    • Agriculture

188 Acres

2014

5B


2011
  • pH
    • No Source Analysis Available

188 Acres

2010

5A

High



3

Mountain Charlie Gulch

River & Stream

3304.120402  /  18060001
  • Sedimentation/Siltation
    • A Source Unknown

4 Miles

2002

5A

Low



3

Nacimiento Reservoir

Lake & Reservoir

3309.811001,3309.811002,3309.811003,3309.811102,3309.811104,3309.811202,3309.811203,3309.811204,3309.820000  /  18060005
  • Mercury
    • No Source Analysis Available

5495 Acres

1800

5A

Low



3

Nacimiento River (below Nacimiento Reservoir)

River & Stream

30981175  /  18060005
  • pH
    • No Source Analysis Available

12 Miles

2010

5A

Low



3

Natividad Creek

River & Stream

3309.110000,3309.200003,3309.700904  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

7.2 Miles

2014

5B


2015
  • Benthic Community Effects
    • No Source Analysis Available

7.2 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

7.2 Miles

2020

5B


2018
  • Chlorpyrifos
    • No Source Analysis Available

7.2 Miles

2010

5B


2011
  • Copper
    • No Source Analysis Available

7.2 Miles

2020

5A

Low

  • Diazinon
    • Agriculture

7.2 Miles

2010

5B


2011
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Transient encampments
    • Urban Runoff/Storm Sewers

7.2 Miles

2010

5B


2012
  • Fecal Coliform
    • No Source Analysis Available

7.2 Miles

2020

5B


2012
  • Imidacloprid
    • No Source Analysis Available

7.2 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

7.2 Miles

2014

5A

High

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.2 Miles

2006

5B


2015
  • Organophosphate Pesticides
    • Agriculture

7.2 Miles

2020

5B


2011
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

7.2 Miles

2014

5B


2015
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

7.2 Miles

2020

5B


2018
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

7.2 Miles

2020

5B


2018
  • Temperature, water
    • No Source Analysis Available

7.2 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

7.2 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

7.2 Miles

2010

5A

High



3

Newell Creek (Lower)

River & Stream

3304.120202,3304.120600  /  18060001
  • pH
    • A Source Unknown

1.8 Miles

2010

5A

Low



3

Newell Creek (Upper)

River & Stream

3304.120600  /  18060001
  • Sedimentation/Siltation
    • A Source Unknown

3.3 Miles

2002

5A

Low



3

Nipomo Creek

River & Stream

3312.100101,3312.100104,3312.100300  /  18060008
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

9.5 Miles

2014

5B


2013
  • Fecal Coliform
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

9.5 Miles

2002

5B


2013
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

9.5 Miles

2010

5B


2016
  • Turbidity
    • No Source Analysis Available

9.5 Miles

2010

5A

Low



3

Old Creek (above Whale Rock Reservoir)

River & Stream

3310.170002,3310.170003  /  18060006
  • Escherichia coli (E. coli)
    • A Source Unknown

7.8 Miles

2014

5A

Low



3

Old Salinas River

River & Stream

30911010  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.8 Miles

2014

5B


2015
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.8 Miles

2014

5B


2018
  • Chlorophyll-a
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.8 Miles

2010

5B


2015
  • Chlorpyrifos
    • Agriculture

3.8 Miles

2010

5B


2011
  • Copper
    • No Source Analysis Available

3.8 Miles

2010

5A

Low

  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

3.8 Miles

2014

5B


2018
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

3.8 Miles

2020

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

3.8 Miles

2020

5A

Low

  • Diazinon
    • Agriculture

3.8 Miles

2010

5B


2011
  • Imidacloprid
    • No Source Analysis Available

3.8 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

3.8 Miles

2014

5A

High

  • Nickel
    • No Source Analysis Available

3.8 Miles

2010

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.8 Miles

2010

5B


2015
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.8 Miles

2014

5B


2015
  • Permethrin
    • Agriculture
    • No Source Analysis Available
    • Urban Runoff/Storm Sewers

3.8 Miles

2014

5B


2018
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

3.8 Miles

2020

5B


2018
  • Selenium
    • No Source Analysis Available

3.8 Miles

2020

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.8 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

3.8 Miles

2010

5A

High

  • pH
    • No Source Analysis Available

3.8 Miles

2010

5A

Low



3

Old Salinas River Estuary

Estuary

3309.110000  /  18060011
  • Nutrients
    • A Source Unknown

25 Acres

1992

5A

Low

  • Pesticides
    • A Source Unknown

25 Acres

1990

5A

Low



3

Orcutt Creek

River & Stream

31210030  /  18060008
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

15 Miles

2014

5B


2016
  • Arsenic
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Benthic Community Effects
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

2014

5B


2015
  • Boron
    • No Source Analysis Available

15 Miles

2006

5A

Low

    The spatial extent of this boron impairment is limited to the creek segment upstream of Black Road (monitoring site 312 ORB).
  • Carbaryl
    • No Source Analysis Available

15 Miles

2014

5A

Low

  • Chloride
    • No Source Analysis Available

15 Miles

2010

5A

Low

  • Chlorpyrifos
    • Agriculture

15 Miles

2006

5B


2015
  • Copper
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Cyfluthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

2014

5B


2015
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

2014

5B


2015
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

2014

5B


2015
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

1800

5B


2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

1800

5B


2015
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

2006

5B


2015
  • Dieldrin
    • Agriculture

15 Miles

2006

5B


2015
  • Imidacloprid
    • No Source Analysis Available

15 Miles

2020

5A

High

  • Linuron
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Malathion
    • Agriculture

15 Miles

2014

5B


2015
  • Molybdenum
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Nickel
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

15 Miles

2002

5B


2016
  • Organophosphate Pesticides
    • Agriculture

15 Miles

2020

5B


2015
  • Oxyfluorfen
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Prometryn
    • No Source Analysis Available

15 Miles

2014

5A

Low

  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

2020

5B


2015
  • Selenium
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

15 Miles

2010

5A

Low

  • Specific Conductivity
    • No Source Analysis Available

15 Miles

2014

5A

Low

  • Temperature, water
    • No Source Analysis Available

15 Miles

2010

5A

Low

  • Total Dissolved Solids
    • No Source Analysis Available

15 Miles

2020

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

15 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

15 Miles

2010

5A

Low

  • Zinc
    • No Source Analysis Available

15 Miles

2020

5A

Low



3

Oso Flaco Creek

River & Stream

3312.100300  /  18060008
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock

5.7 Miles

2014

5B


2016
  • Benthic Community Effects
    • No Source Analysis Available

5.7 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

5.7 Miles

2014

5B


2015
  • Chloride
    • No Source Analysis Available

5.7 Miles

2010

5A

Low

  • Chlorpyrifos
    • Agriculture

5.7 Miles

2010

5B


2015
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

5.7 Miles

2014

5B


2015
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

5.7 Miles

2014

5B


2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture
    • Urban Runoff/Storm Sewers

5.7 Miles

2014

5B


2015
  • Imidacloprid
    • No Source Analysis Available

5.7 Miles

2020

5A

High

  • Malathion
    • Agriculture

5.7 Miles

2014

5B


2015
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

5.7 Miles

2002

5B


2016
  • Oxyfluorfen
    • No Source Analysis Available

5.7 Miles

2020

5A

Low

  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

5.7 Miles

2020

5B


2015
  • Sodium
    • No Source Analysis Available

5.7 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

5.7 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

5.7 Miles

2010

5A

Low



3

Oso Flaco Lake

Lake & Reservoir

3312.100300  /  18060008
  • Chlordane
    • Agriculture

46 Acres

2014

5B


2015
  • Chlorophyll-a
    • No Source Analysis Available

46 Acres

2010

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

46 Acres

2014

5B


2015
  • Dieldrin
    • Agriculture

46 Acres

2006

5B


2015
  • Endrin
    • Agriculture

46 Acres

2014

5B


2015
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

46 Acres

2014

5B


2013
  • Heptachlor epoxide
    • No Source Analysis Available

46 Acres

2014

5A

Low

  • Mercury
    • No Source Analysis Available

46 Acres

2014

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

46 Acres

2002

5B


2016
  • Oxygen, Dissolved
    • No Source Analysis Available

46 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

46 Acres

2014

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

46 Acres

2014

5B


2015


3

Pacheco Creek

River & Stream

3305.300200,3305.400104,3305.400201,3305.400301,3305.400302,3305.400305  /  18060002
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

26 Miles

2014

5B


2016
  • Turbidity
    • No Source Analysis Available

26 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Arroyo Burro Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532010  /  18060013
  • Enterococcus
    • No Source Analysis Available

1.2 Miles

2010

5A

Low

  • Total Coliform
    • No Source Analysis Available

1.2 Miles

2002

5A

Low



3

Pacific Ocean Shoreline at Avila Beach (Avila Pier)

Coastal & Bay Shoreline

3310.240201,3310.250002,3310.260004  /  18060006
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.37 Miles

2010

5A

Low

  • Total Coliform
    • A Source Unknown

0.37 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Avila Beach (SLO Creek mouth)

Coastal & Bay Shoreline

3310.240201,3310.250002  /  18060006
  • Enterococcus
    • No Source Analysis Available

0.21 Miles

2010

5A

Low

  • Total Coliform
    • A Source Unknown

0.21 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Capitola Beach (Santa Cruz County)

Coastal & Bay Shoreline

3304.120501,3304.120503,3304.130104,3304.130201,3304.130202,3304.130203  /  18060001
  • Enterococcus
    • No Source Analysis Available

0.28 Miles

2010

5A

Low

  • Total Coliform
    • A Source Unknown

0.28 Miles

2010

5A

Low



3

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

Coastal & Bay Shoreline

3315.340002, 3315.340003, 3315.340004, 4401.000002  /  18060013
  • Enterococcus
    • No Source Analysis Available

1.3 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Cowell Beach (Santa Cruz County)

Coastal & Bay Shoreline

30412053  /  18060001
  • Enterococcus
    • No Source Analysis Available

0.41 Miles

2010

5A

Low

  • Total Coliform
    • No Source Analysis Available

0.41 Miles

2010

5A

Low



3

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

Coastal & Bay Shoreline

3315.320001,3315.320002,3315.320003,3315.330002  /  18060013
  • Enterococcus
    • A Source Unknown

0.7 Miles

2010

5A

Low

  • Fecal Coliform
    • A Source Unknown

0.7 Miles

2002

5A

Low

  • Total Coliform
    • No Source Analysis Available

0.7 Miles

2002

5A

Low



3

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

Coastal & Bay Shoreline

3315.320001,3315.320002,3315.320003,3315.330001,3315.330002  /  18060013
  • Enterococcus
    • No Source Analysis Available

0.8 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Goleta Beach (Santa Barbara County)

Coastal & Bay Shoreline

3315.310002,3315.310003,3315.320003  /  18060013
  • Enterococcus
    • No Source Analysis Available

0.16 Miles

2014

5A

Low

  • Total Coliform
    • A Source Unknown

0.16 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Guadalupe Dunes (Santa Barbara County)

Coastal & Bay Shoreline

31210030  /  18060008
  • Total Coliform
    • A Source Unknown

2.1 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Hammonds Beach (Santa Barbara County)

Coastal & Bay Shoreline

31533010  /  18060013
  • Total Coliform
    • A Source Unknown

0.55 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Hope Ranch Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532010  /  18060013
  • Enterococcus
    • No Source Analysis Available

0.85 Miles

2010

5A

Low

  • Total Coliform
    • A Source Unknown

0.85 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Jalama Beach (Santa Barbara County)

Coastal & Bay Shoreline

3315.100402,3315.100501,3315.100502,3315.100602  /  18060013
  • Total Coliform
    • No Source Analysis Available

0.29 Miles

2002

5A

Low



3

Pacific Ocean Shoreline at Leadbetter Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532011  /  18060013
  • Enterococcus
    • No Source Analysis Available

0.75 Miles

2010

5A

Low

  • Total Coliform
    • A Source Unknown

0.75 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Main Beach (Santa Cruz County), at Boardwalk

Coastal & Bay Shoreline

3304.110301,3304.120202,3304.120501,3304.120502,3304.120503,3304.120504,3304.130104  /  18060001
  • Enterococcus
    • No Source Analysis Available

0.55 Miles

2010

5A

Low

  • Total Coliform
    • No Source Analysis Available

0.55 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Main Beach (Santa Cruz County), at San Lorenzo River mouth

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Mitchells Cove Beach

Coastal & Bay Shoreline

30412053  /  18060001
  • Enterococcus
    • No Source Analysis Available

0.22 Miles

2010

5A

Low

  • Total Coliform
    • No Source Analysis Available

0.22 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Monterey Municipal Beach

Coastal & Bay Shoreline

3307.000502, 3309.500401, 3309.500402  /  18060012
  • Enterococcus
    • No Source Analysis Available

0.85 Miles

2010

5A

Low

  • Total Coliform
    • A Source Unknown

0.85 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Natural Bridges Beach

Coastal & Bay Shoreline

30411031  /  18060001
  • Total Coliform
    • No Source Analysis Available

0.27 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at New Brighton Beach (Santa Cruz County)

Coastal & Bay Shoreline

30413014  /  18060001
  • Total Coliform
    • A Source Unknown

0.4 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Ocean Beach (Santa Barbara County)

Coastal & Bay Shoreline

31410050  /  18060010
  • Fecal Coliform
    • A Source Unknown

1.6 Miles

2002

5A

Low

  • Total Coliform
    • No Source Analysis Available

1.6 Miles

2002

5A

Low



3

Pacific Ocean Shoreline at Olde Port Beach (131 yards west of restrooms)

Coastal & Bay Shoreline

3310.240201,3310.250002  /  18060006
  • Enterococcus
    • No Source Analysis Available

0.05 Miles

2010

5A

Low

  • Total Coliform
    • A Source Unknown

0.05 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Pismo State Beach (San Luis Obispo County), Park Ave

Coastal & Bay Shoreline

3310.260004  /  18060006
  • Total Coliform
    • A Source Unknown

0.06 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Pismo State Beach (San Luis Obispo County), Wadsworth Ave

Coastal & Bay Shoreline

3310.260004  /  18060006
  • Total Coliform
    • A Source Unknown

0.07 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Pismo State Beach (San Luis Obispo County), south of Pismo Pier

Coastal & Bay Shoreline

3310.240201,3310.260004,3310.310204,3310.310205  /  18060006
  • Fecal Coliform
    • No Source Analysis Available

0.05 Miles

2010

5A

Low

  • Total Coliform
    • No Source Analysis Available

0.05 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Refugio Beach (Santa Barbara County)

Coastal & Bay Shoreline

3315.100104,3315.100201,3315.100202,3315.100203,3315.100204  /  18060013
  • Enterococcus
    • No Source Analysis Available

0 Miles

2010

5A

Low

  • Total Coliform
    • No Source Analysis Available

0 Miles

2002

5A

Low



3

Pacific Ocean Shoreline at Rio Del Mar (Santa Cruz County), Aptos Creek mouth

Coastal & Bay Shoreline

30413023  /  18060001
  • Total Coliform
    • A Source Unknown

1.1 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Seabright (Castle) Beach

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • No Source Analysis Available

0.63 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Stillwater Cove Beach

Coastal & Bay Shoreline

30950042  /  18060012
  • Enterococcus
    • No Source Analysis Available

0.35 Miles

1800

5A

Low



3

Pacific Ocean Shoreline at Twin Lakes Beach (Santa Cruz County)

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • A Source Unknown

0.66 Miles

2010

5A

Low



3

Pacific Ocean Shoreline at Waddell Creek Beach

Coastal & Bay Shoreline

30420013  /  18060001
  • Total Coliform
    • A Source Unknown

0.78 Miles

2010

5A

Low



3

Pacific Ocean at Estero Bay

Ocean

3310.140201,3310.150000,3310.160000,3310.170002,3310.180000,3310.210000,3310.220002,3310.230001,3310.230002,3310.250001,(Total Count: 12)  / 
  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

26859 Acres

2020

5A

Low

  • Mercury
    • No Source Analysis Available

26859 Acres

2020

5A

Low



3

Pacific Ocean at Santa Cruz Island

Ocean

3316.200000,3316.300000,4406.100000  / 
  • Mercury
    • No Source Analysis Available

129820 Acres

2020

5A

Low



3

Pacific Ocean, Coal Oil Pt. to Rincon Pt.

Ocean

3315.100102,3315.100103,3315.310002,3315.310003,3315.320001,3315.320002,3315.320003,3315.330001,3315.330002,3315.340002,(Total Count: 13)  / 
  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

43849 Acres

2020

5A

Low



3

Pacific Ocean, Monterey Bay (excludes inner three miles nearshore)

Ocean

3304.110301, 3304.130104, 3304.130203, 3304.130203, 3305.100301, 3305.100301, 3305.100301, 3306.000004, 3306.000004, 3306.000004,(Total Count: 22)  / 
  • Chlordane
    • No Source Analysis Available

103819 Acres

2024

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

103819 Acres

2024

5A

Low

  • Dieldrin
    • No Source Analysis Available

103819 Acres

2024

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

103819 Acres

2024

5A

Low

  • Toxaphene
    • No Source Analysis Available

103819 Acres

2024

5A

Low



3

Pacific Ocean, Pescadero Pt. to Pt. Ano Nuevo

Ocean

2202.400104,2202.400105,2202.400200,2202.400301,2202.400302,3304.200001,3304.200002,3304.200003,3304.200004  / 
  • Mercury
    • No Source Analysis Available

32898 Acres

2020

5A

Low



3

Pacific Ocean, Point Ano Nuevo to Soquel Point

Ocean

3304.110101,3304.110102,3304.110202,3304.110203,3304.110204,3304.110301,3304.110302,3304.120202,3304.120501,3304.120502,(Total Count: 16)  /  18060001
  • Dieldrin
    • No Source Analysis Available

48748 Acres

2010

5A

Low



3

Pacific Ocean, Pt. Buchon to Pt. San Luis

Ocean

3310.240201,3310.250001,3310.250002,3310.250003,3310.260004  / 
  • Mercury
    • No Source Analysis Available

27440 Acres

2020

5A

Low



3

Pacific Ocean, Pt. Pinos to Pt. Piedras Blancas

Ocean

3307.000502,3308.000101,3308.000102,3308.000103,3308.000104,3308.000105,3308.000201,3308.000202,3308.000203,3308.000204,(Total Count: 32)  / 
  • Dieldrin
    • No Source Analysis Available

227389 Acres

2020

5A

Low

  • Mercury
    • No Source Analysis Available

227389 Acres

2020

5A

Low



3

Pajaro River

River & Stream

3305.100200,3305.100301,3305.200401,3305.200402,3305.300200  /  18060002
  • Aluminum
    • No Source Analysis Available

30 Miles

2020

5A

Low

  • Benthic Community Effects
    • No Source Analysis Available

30 Miles

2020

5A

Low

  • Boron
    • A Source Unknown

30 Miles

2006

5A

Low

    Impaired length for Boron is below Main Street (in Watsonville) to the mouth.
  • Chlordane
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • Chloride
    • A Source Unknown

30 Miles

2010

5A

Low

  • Chlorpyrifos
    • Agriculture

30 Miles

2010

5B


2013
  • Chromium
    • No Source Analysis Available

30 Miles

2014

5A

Low

  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

30 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

30 Miles

2014

5A

Low

  • Dieldrin
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

30 Miles

2010

5A

High

    The spatial extent of the impaired segment is limited to the reaches above the Highway 1 bridge, where the salinity is less than 1 ppt in 95 percent or more of the samples and therefore the segment where the water quality objective is applicable.
  • Heptachlor epoxide
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • Imidacloprid
    • No Source Analysis Available

30 Miles

2020

5A

Low

  • Manganese
    • No Source Analysis Available

30 Miles

2020

5A

Low

  • Nickel
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

30 Miles

2006

5B


2016
  • Oxyfluorfen
    • No Source Analysis Available

30 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

30 Miles

2014

5B


2016
  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • Sedimentation/Siltation
    • Agriculture
    • Domestic Animals/Livestock
    • Grazing-Related Sources
    • Habitat Modification
    • Highway/Road/Bridge Construction
    • Hydromodification
    • Land Development
    • Logging Road Construction/Maintenance
    • Urban Runoff/Storm Sewers

30 Miles

1996

5B


2007
  • Selenium
    • No Source Analysis Available

30 Miles

2020

5A

Low

  • Sodium
    • A Source Unknown

30 Miles

2010

5A

Low

  • Toxicity
    • Agriculture

30 Miles

2014

5B


2013
  • Turbidity
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

30 Miles

2010

5A

Low



3

Pajaro River Estuary

Estuary

30510030  /  18060002
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

24 Acres

2014

5A

Low

  • Diazinon
    • Agriculture

24 Acres

2010

5B


2013
  • Malathion
    • No Source Analysis Available

24 Acres

2014

5A

Low

  • Nickel
    • No Source Analysis Available

24 Acres

2020

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

24 Acres

2014

5A

High

  • Temperature, water
    • No Source Analysis Available

24 Acres

2014

5A

Low

  • Toxicity
    • Agriculture

24 Acres

2014

5B


2013
  • pH
    • No Source Analysis Available

24 Acres

2014

5A

Low



3

Pennington Creek

River & Stream

3310.220001  /  18060006
  • Escherichia coli (E. coli)
    • No Source Analysis Available

5.5 Miles

2010

5A

Low



3

Pico Creek

River & Stream

3310.130204  /  18060006
  • Oxygen, Dissolved
    • No Source Analysis Available

1.1 Miles

2014

5A

Low

    The segment that is impaired due to low dissolved oxygen is located between the creek mouth and the top of the lagoon (approximately 1/2 mile).


3

Pinto Lake

Lake & Reservoir

3305.100301  /  18060002
  • Ammonia
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Groundwater Loadings
    • Internal Nutrient Cycling (primarily lakes)
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

105 Acres

2014

5B


2021
  • Chlorophyll-a
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Groundwater Loadings
    • Internal Nutrient Cycling (primarily lakes)
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

105 Acres

2010

5B


2021
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

105 Acres

2014

5A

Low

  • Dieldrin
    • No Source Analysis Available

105 Acres

2014

5A

Low

  • Mercury
    • No Source Analysis Available

105 Acres

2010

5A

Low

  • Microcystins
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Groundwater Loadings
    • Internal Nutrient Cycling (primarily lakes)
    • Onsite Wastewater Systems (Septic Tanks)
    • Other
    • Urban Runoff/Storm Sewers

105 Acres

2020

5B


2021
  • Oxygen, Dissolved
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Groundwater Loadings
    • Internal Nutrient Cycling (primarily lakes)
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

105 Acres

2014

5B


2021
  • Scum/Foam-unnatural
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Groundwater Loadings
    • Internal Nutrient Cycling (primarily lakes)
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

105 Acres

2010

5B


2021
  • pH
    • No Source Analysis Available

105 Acres

2010

5A

Low



3

Pismo Creek

River & Stream

3310.260003,3310.260004  /  18060006
  • Chloride
    • No Source Analysis Available

5.6 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

5.6 Miles

2010

5A

Low

  • Manganese
    • No Source Analysis Available

5.6 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

5.6 Miles

2014

5A

Low

  • Sodium
    • No Source Analysis Available

5.6 Miles

2010

5A

Low



3

Port San Luis

Bay & Harbor

3310.240201,3310.250002  /  18060006
  • Arsenic
    • A Source Unknown

390 Acres

2010

5A

Low

  • Dieldrin
    • A Source Unknown

390 Acres

2010

5A

Low

  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • No Source Analysis Available

390 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

390 Acres

2014

5A

Low



3

Porter Gulch Creek

River & Stream

3304.130103,3304.130104  /  18060001
  • Enterococcus
    • A Source Unknown

2.3 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • A Source Unknown

2.3 Miles

2010

5A

Low



3

Prefumo Creek

River & Stream

3310.240102,3310.240202  /  18060006
  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.2 Miles

2014

5A

Low

  • Nitrate
    • Agriculture
    • Natural Sources

6.2 Miles

2006

5B


2007
  • Oxygen, Dissolved
    • No Source Analysis Available

6.2 Miles

2014

5A

Low

  • Selenium
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

6.2 Miles

2014

5A

Low



3

Quail Creek

River & Stream

3309.110000,3309.200003,3309.700905,3309.700906  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.5 Miles

2014

5B


2015
  • Bensulide
    • No Source Analysis Available

7.5 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

7.5 Miles

2014

5B


2018
  • Chlorpyrifos
    • Agriculture

7.5 Miles

2010

5B


2011
  • Copper
    • No Source Analysis Available

7.5 Miles

2020

5A

Low

  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

7.5 Miles

2014

5B


2018
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

7.5 Miles

2014

5B


2018
  • Diazinon
    • Agriculture

7.5 Miles

2010

5B


2011
  • Dimethoate
    • No Source Analysis Available

7.5 Miles

2014

5A

Low

  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Illegal dumping

7.5 Miles

2010

5B


2012
  • Imidacloprid
    • No Source Analysis Available

7.5 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

7.5 Miles

2014

5A

High

  • Methomyl
    • No Source Analysis Available

7.5 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.5 Miles

2006

5B


2015
  • Organophosphate Pesticides
    • Agriculture

7.5 Miles

2020

5B


2011
  • Oxyfluorfen
    • No Source Analysis Available

7.5 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.5 Miles

2014

5B


2015
  • Permethrin
    • A Source Unknown

7.5 Miles

2014

5A

High

  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

7.5 Miles

2014

5B


2018
  • Temperature, water
    • No Source Analysis Available

7.5 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

7.5 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

7.5 Miles

2010

5A

Low

  • Zinc
    • No Source Analysis Available

7.5 Miles

2020

5A

Low

  • pH
    • No Source Analysis Available

7.5 Miles

2010

5A

Low



3

Rincon Creek

River & Stream

3315.340002  /  18060013
  • Ammonia
    • No Source Analysis Available

10 Miles

2014

5A

Low

  • Arsenic
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Boron
    • No Source Analysis Available

10 Miles

2006

5A

Low

  • Chloride
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Copper
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Nickel
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Nitrate
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

10 Miles

2014

5A

Low

  • Selenium
    • No Source Analysis Available

10 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Specific Conductivity
    • No Source Analysis Available

10 Miles

2014

5A

Low

  • Total Dissolved Solids
    • No Source Analysis Available

10 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

10 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

10 Miles

2010

5A

Low



3

Rodeo Creek Gulch

River & Stream

3304.130103,3304.130104  /  18060001
  • Turbidity
    • A Source Unknown

5.6 Miles

2010

5A

Low

  • pH
    • A Source Unknown

5.6 Miles

2010

5A

Low



3

Romero Creek

River & Stream

3315.330001  /  18060013
  • pH
    • A Source Unknown

5.1 Miles

2010

5A

Low



3

Salinas Reclamation Canal

River & Stream

3309.110000  /  18060011
  • Aluminum
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B


2015
  • Benthic Community Effects
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B


2018
  • Chlorpyrifos
    • Agriculture

13 Miles

2010

5B


2011
  • Clothianidin
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Copper
    • No Source Analysis Available

13 Miles

2010

5A

Low

  • Cyfluthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B


2018
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B


2018
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B


2018
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Deltamethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B


2018
  • Dimethoate
    • No Source Analysis Available

13 Miles

2014

5A

Low

  • Disulfoton
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Transient encampments
    • Urban Runoff/Storm Sewers

13 Miles

2010

5B


2012
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Transient encampments
    • Urban Runoff/Storm Sewers

13 Miles

2002

5B


2012
  • Fenpropathrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B


2018
  • Imidacloprid
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Lead
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

13 Miles

2014

5A

High

  • Methomyl
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

13 Miles

2010

5B


2015
  • Organophosphate Pesticides
    • Agriculture

13 Miles

2020

5B


2011
  • Permethrin
    • A Source Unknown

13 Miles

2014

5A

High

  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B


2018
  • Priority Organics
    • A Source Unknown

13 Miles

1996

5A

Low

  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B


2018
  • Thiamethoxam
    • No Source Analysis Available

13 Miles

2020

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

13 Miles

2010

5A

High

  • pH
    • No Source Analysis Available

13 Miles

2010

5A

Low



3

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

River & Stream

3309.110000  /  18060011
  • Aluminum
    • No Source Analysis Available

36 Miles

2020

5A

Low

  • Arsenic
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Benthic Community Effects
    • No Source Analysis Available

36 Miles

2014

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

36 Miles

2014

5B


2018
  • Chlordane
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Chloride
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Chromium
    • No Source Analysis Available

36 Miles

2014

5A

Low

  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

36 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

36 Miles

2014

5A

Low

  • Dieldrin
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Enterococcus
    • A Source Unknown

36 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

36 Miles

2010

5B


2013
    The spatial extent of the impaired segment is limited to the reach upstream of tidal influence, near Blanco Drain, where the salinity is less than 1 ppt in 95 percent or more of the samples.
  • Fipronil
    • No Source Analysis Available

36 Miles

2014

5A

Low

  • Imidacloprid
    • No Source Analysis Available

36 Miles

2020

5A

Low

  • Manganese
    • No Source Analysis Available

36 Miles

2020

5A

Low

  • Nickel
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

36 Miles

2006

5B


2015
  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Selenium
    • No Source Analysis Available

36 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Temperature, water
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Total Dissolved Solids
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • Toxaphene
    • A Source Unknown

36 Miles

1994

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

36 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

36 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

36 Miles

2010

5A

Low



3

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

River & Stream

3309.110000,3309.300000,3309.400000,3309.810503,3309.810506,3309.810507,3309.811907  /  18060005
  • Benthic Community Effects
    • No Source Analysis Available

73 Miles

2014

5A

Low

  • Temperature, water
    • No Source Analysis Available

73 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

73 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

73 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

73 Miles

2010

5A

Low



3

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

River & Stream

3309.811302,3309.811303,3309.811305,3309.811306,3309.811402,3309.811403,3309.811404,3309.811405,3309.811406,3309.811407,(Total Count: 21)  /  18060005
  • Benthic Community Effects
    • No Source Analysis Available

50 Miles

2020

5A

Low

  • Chloride
    • A Source Unknown

50 Miles

2002

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

50 Miles

2014

5A

Low

  • Sodium
    • A Source Unknown

50 Miles

2002

5A

Low

  • Toxicity
    • No Source Analysis Available

50 Miles

2014

5A

Low

  • pH
    • No Source Analysis Available

50 Miles

2010

5A

Low



3

Salinas River Lagoon (North)

Estuary

3309.110000  /  18060011
  • Chlorpyrifos
    • Agriculture

23 Acres

2014

5B


2011
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

23 Acres

2014

5A

Low

  • Nutrients
    • Agriculture

23 Acres

1992

5B


2015
  • Toxicity
    • Agriculture

23 Acres

2014

5B


2011
  • pH
    • No Source Analysis Available

23 Acres

2014

5A

Low



3

Salinas River Refuge Lagoon (South)

Estuary

3309.110000  /  18060011
  • Turbidity
    • A Source Unknown

0.72 Acres

2010

5A

Low

  • pH
    • A Source Unknown

0.72 Acres

2010

5A

Low



3

Salsipuedes Creek (Santa Barbara County)

River & Stream

3314.200103,3314.200202,3314.200203  /  18060013
  • Chloride
    • No Source Analysis Available

9 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

9 Miles

2014

5A

Low

  • Sodium
    • No Source Analysis Available

9 Miles

2010

5A

Low



3

Salsipuedes Creek (Santa Cruz County)

River & Stream

3305.100301  /  18060002
  • Aluminum
    • No Source Analysis Available

3 Miles

2020

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

3 Miles

2010

5B


2012
  • Lead
    • No Source Analysis Available

3 Miles

2020

5A

Low

  • Manganese
    • No Source Analysis Available

3 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3 Miles

2010

5B


2016
  • Nitrogen, Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3 Miles

2020

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3 Miles

2014

5B


2016
  • Toxicity
    • No Source Analysis Available

3 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

3 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

3 Miles

2010

5A

Low



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
    • No Source Analysis Available

29 Miles

2014

5A

Low

  • Arsenic
    • No Source Analysis Available

29 Miles

2010

5A

Low

  • Boron
    • No Source Analysis Available

29 Miles

2002

5A

Low

  • Chloride
    • No Source Analysis Available

29 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

29 Miles

2010

5A

Low

    The spatial extent of the impaired segment is limited to the reaches above the Highway 1 bridge (and Barca Slough) where the salinity is less than 1 ppt in 95 percent or more of the samples and therefore the E. coli water quality objective is applicable.
  • Nitrate
    • Agriculture

29 Miles

2010

5C


2025
  • Oxygen, Dissolved
    • No Source Analysis Available

29 Miles

2014

5A

Low

    The impaired segment is from the creek mouth up to the western edge of Barka Slough.
  • Selenium
    • No Source Analysis Available

29 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

29 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

29 Miles

2014

5A

Low



3

San Antonio Reservoir

Lake & Reservoir

3309.810302,3309.810402,3309.810403,3309.810504,3309.810601,3309.810602,3309.810603,3309.810604,3309.830000  /  18060005
  • Mercury
    • No Source Analysis Available

5379 Acres

2010

5A

Low

  • Microcystins
    • No Source Analysis Available

5379 Acres

2024

5A

Low



3

San Antonio River (below San Antonio Reservoir)

River & Stream

3309.810504,3309.810505,3309.810507,3309.830000  /  18060005
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Natural Sources

8.8 Miles

2010

5B


2011
  • pH
    • No Source Analysis Available

8.8 Miles

2010

5A

Low



3

San Benito River

River & Stream

3305.200402,3305.200502,3305.300200,3305.500106,3305.500201,3305.500202,3305.500203,3305.500205,3305.500206,3305.500301,(Total Count: 16)  /  18060002
  • Aluminum
    • No Source Analysis Available

87 Miles

2020

5A

Low

  • Boron
    • A Source Unknown

87 Miles

2010

5A

Low

  • Copper
    • No Source Analysis Available

87 Miles

2020

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

87 Miles

2010

5A

High

    The spatial extent of the impaired segment is limited to the reach upstream of the station 305BRI, where the salinity is less than 1 ppt in 95 percent or more of the samples.
  • Manganese
    • No Source Analysis Available

87 Miles

2020

5A

Low

  • Sedimentation/Siltation
    • Agriculture
    • Grazing-Related Sources
    • Harvesting, Restoration, Residue Management
    • Highway/Road/Bridge Runoff
    • Hydromodification
    • Road Construction
    • Surface Mining
    • Urban Runoff/Storm Sewers

87 Miles

1990

5B


2007
  • Specific Conductivity
    • No Source Analysis Available

87 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

87 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

87 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

87 Miles

2010

5A

Low



3

San Bernardo Creek

River & Stream

3310.220001,3310.220002  /  18060006
  • Escherichia coli (E. coli)
    • No Source Analysis Available

7.1 Miles

2010

5A

Low



3

San Jose Creek (Monterey County)

River & Stream

3308.000104  /  18060006
  • pH
    • No Source Analysis Available

9 Miles

2010

5A

Low



3

San Jose Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Chloride
    • No Source Analysis Available

9.9 Miles

2010

5A

Low

  • Enterococcus
    • A Source Unknown

9.9 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

9.9 Miles

2014

5A

Low

  • Sodium
    • No Source Analysis Available

9.9 Miles

2010

5A

Low

  • Specific Conductivity
    • No Source Analysis Available

9.9 Miles

2014

5A

Low



3

San Juan Creek (San Benito County)

River & Stream

30520050  /  18060002
  • Ammonia
    • No Source Analysis Available

7.9 Miles

2014

5A

High

  • Arsenic
    • No Source Analysis Available

7.9 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

7.9 Miles

2010

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.9 Miles

2014

5B


2016
  • Selenium
    • No Source Analysis Available

7.9 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

7.9 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

7.9 Miles

2010

5A

Low



3

San Lorenzo Creek (Monterey County)

River & Stream

3309.400000,3309.700201,3309.700202,3309.700203,3309.700204,3309.700205,3309.700507,3309.700508,3309.700509,3309.700511  /  18060005
  • Boron
    • A Source Unknown

48 Miles

2002

5A

Low

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

48 Miles

2010

5A

Low

  • Sodium
    • A Source Unknown

48 Miles

2010

5A

Low

  • Specific Conductivity
    • No Source Analysis Available

48 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

48 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

48 Miles

2010

5A

Low



3

San Lorenzo River

River & Stream

3304.120101,3304.120102,3304.120201,3304.120202,3304.120203,3304.120503,3304.120600  /  18060001
  • Aluminum
    • No Source Analysis Available

29 Miles

2020

5A

Low

  • Benthic Community Effects
    • No Source Analysis Available

29 Miles

2020

5A

Low

  • Chlordane
    • No Source Analysis Available

29 Miles

2010

5A

Low

  • Chloride
    • Hydromodification
    • Other

29 Miles

2010

5A

Low

    The impaired reach is from the river mouth to Highway 1. This reach is tidally influenced.
  • Chlorpyrifos
    • A Source Unknown

29 Miles

2010

5B


2015
    Impaired length from San Lorenzo River Lagoon to confluence with Zayante Creek (approximately 7 miles).
  • Enterococcus
    • A Source Unknown

29 Miles

2014

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Nonpoint Source
    • Onsite Wastewater Systems (Septic Tanks)
    • Other Urban Runoff
    • Urban Runoff/Storm Sewers
    • Wastewater

29 Miles

2014

5B


2003
  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

29 Miles

2010

5A

Low

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

29 Miles

1998

5B


2004
  • Sodium
    • Hydromodification
    • Other

29 Miles

2010

5A

Low

    The impaired reach is from the river mouth to Highway 1. This reach is tidally influenced.
  • Temperature, water
    • No Source Analysis Available

29 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

29 Miles

2014

5A

Low



3

San Luis Obispo Creek (below Osos Street)

River & Stream

3310.240101,3310.240102,3310.240201,3310.240202  /  18060006
  • Benthic Community Effects
    • No Source Analysis Available

10 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

10 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

10 Miles

2014

5A

Low

  • Nitrate
    • Agriculture
    • Municipal Point Sources
    • Natural Sources
    • Nonpoint Source
    • Other Urban Runoff

10 Miles

2014

5B


2007
  • Oxygen, Dissolved
    • No Source Analysis Available

10 Miles

2014

5A

Low

  • Sodium
    • A Source Unknown

10 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

10 Miles

2014

5A

Low



3

San Luis Obispo Creek Estuary

Estuary

3310.240201,3310.250002  / 
  • Enterococcus
    • No Source Analysis Available

3.6 Acres

2020

5A

Low



3

San Luisito Creek

River & Stream

3310.220001,3310.220002  /  18060006
  • Escherichia coli (E. coli)
    • No Source Analysis Available

7.1 Miles

2014

5A

Low



3

San Miguelito Creek

River & Stream

3314.100200,3314.100500  /  18060013
  • Chloride
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Nitrate
    • No Source Analysis Available

10 Miles

2010

5A

High

  • Oxygen, Dissolved
    • No Source Analysis Available

10 Miles

2014

5A

High

  • Sodium
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Temperature, water
    • No Source Analysis Available

10 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

Low

  • pH
    • No Source Analysis Available

10 Miles

2010

5A

Low



3

San Pedro Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Enterococcus
    • A Source Unknown

6.3 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.3 Miles

2010

5A

Low

  • Fecal Coliform
    • No Source Analysis Available

6.3 Miles

2010

5A

Low

  • Sodium
    • No Source Analysis Available

6.3 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

6.3 Miles

2010

5A

Low



3

San Simeon Creek

River & Stream

3310.130101,3310.130102,3310.130103  /  18060006
  • Chloride
    • No Source Analysis Available

5.7 Miles

2010

5A

Low

    Impaired length for Chloride is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.
  • Nitrate
    • Wastewater - land disposal

5.7 Miles

2010

5A

Low

    The impaired reach extends from the creek mouth to the upper extent of the lagoon in the dry season, near Washburn Campground.
  • Oxygen, Dissolved
    • No Source Analysis Available

5.7 Miles

2014

5A

Low

  • Sodium
    • No Source Analysis Available

5.7 Miles

2010

5A

Low

    Impaired length for Sodium is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.
  • Toxicity
    • No Source Analysis Available

5.7 Miles

2014

5A

Low



3

San Vicente Creek (Santa Cruz County)

River & Stream

3304.110203  /  18060001
  • Aluminum
    • No Source Analysis Available

9.2 Miles

2020

5A

Low



3

Santa Barbara Harbor

Bay & Harbor

3315.320001,3315.320002,3315.320003,3315.330002  /  18060013
  • Arsenic
    • No Source Analysis Available

98 Acres

2010

5A

Low

  • Copper
    • No Source Analysis Available

98 Acres

2010

5A

Low

  • Dieldrin
    • A Source Unknown

98 Acres

2010

5A

Low

  • Mercury
    • No Source Analysis Available

98 Acres

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

98 Acres

2014

5A

Low



3

Santa Cruz Harbor

Bay & Harbor

30412053  /  18060001
  • Arsenic
    • A Source Unknown

22 Acres

2010

5A

Low

  • Copper
    • A Source Unknown

22 Acres

2010

5A

Low

  • Dieldrin
    • A Source Unknown

22 Acres

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

22 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

22 Acres

2014

5A

Low



3

Santa Margarita Lake

Lake & Reservoir

3309.811302,3309.811303,3309.811307  /  18060005
  • Mercury
    • No Source Analysis Available

720 Acres

2014

5A

Low



3

Santa Maria River

River & Stream

3312.100101,3312.100300  /  18060008
  • Arsenic
    • No Source Analysis Available

25 Miles

2010

5A

Low

  • Benthic Community Effects
    • No Source Analysis Available

25 Miles

2020

5A

Low

  • Chloride
    • No Source Analysis Available

25 Miles

2010

5A

Low

  • Chlorpyrifos
    • Agriculture

25 Miles

2006

5B


2015
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2014

5B


2015
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2014

5B


2015
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

1800

5B


2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

1800

5B


2015
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2006

5B


2015
  • Diazinon
    • Agriculture

25 Miles

1800

5B


2015
  • Dieldrin
    • Agriculture

25 Miles

2006

5B


2015
  • Endrin
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2006

5B


2015
  • Imidacloprid
    • No Source Analysis Available

25 Miles

2020

5A

High

  • Lead
    • No Source Analysis Available

25 Miles

2010

5A

Low

  • Linuron
    • No Source Analysis Available

25 Miles

2020

5A

Low

  • Malathion
    • Agriculture

25 Miles

2014

5B


2015
  • Manganese
    • No Source Analysis Available

25 Miles

2028

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

25 Miles

2002

5B


2016
  • Oxyfluorfen
    • No Source Analysis Available

25 Miles

2020

5A

Low

  • Prometryn
    • No Source Analysis Available

25 Miles

2020

5A

Low

  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2020

5B


2015
  • Selenium
    • No Source Analysis Available

25 Miles

2020

5A

Low

  • Sodium
    • No Source Analysis Available

25 Miles

2010

5A

Low

  • Specific Conductivity
    • No Source Analysis Available

25 Miles

2014

5A

Low

  • Temperature, water
    • No Source Analysis Available

25 Miles

2010

5A

Low

  • Total Dissolved Solids
    • No Source Analysis Available

25 Miles

2020

5A

Low

  • Toxaphene
    • Agriculture

25 Miles

2028

5B


2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2014

5B


2015
  • Turbidity
    • No Source Analysis Available

25 Miles

2010

5A

Low



3

Santa Maria River Estuary

Estuary

3312.100300  /  18060008
  • Chlorpyrifos
    • Agriculture

5.6 Acres

2014

5B


2015
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

5.6 Acres

2014

5B


2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture

5.6 Acres

2014

5B


2015
  • Diazinon
    • Agriculture

5.6 Acres

2014

5B


2015
  • Malathion
    • Agriculture

5.6 Acres

2014

5B


2015
  • Oxyfluorfen
    • No Source Analysis Available

5.6 Acres

2020

5A

Low

  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.6 Acres

2014

5B


2016
  • Prometryn
    • No Source Analysis Available

5.6 Acres

2014

5A

Low

  • Total Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.6 Acres

2010

5B


2013
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

5.6 Acres

2014

5B


2015
  • pH
    • No Source Analysis Available

5.6 Acres

2014

5A

Low



3

Santa Monica Creek

River & Stream

3315.340003,3315.340004  /  18060013
  • Escherichia coli (E. coli)
    • No Source Analysis Available

5 Miles

2014

5A

Low

  • Temperature, water
    • No Source Analysis Available

5 Miles

2010

5A

Low

  • Turbidity
    • No Source Analysis Available

5 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

5 Miles

2010

5A

Low



3

Santa Rita Creek (Monterey County)

River & Stream

3309.110000,3309.200003  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

11 Miles

2014

5B


2015
  • Clothianidin
    • No Source Analysis Available

11 Miles

2020

5A

Low

  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

2020

5B


2018
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

11 Miles

2010

5B


2012
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

11 Miles

2010

5B


2012
  • Imidacloprid
    • No Source Analysis Available

11 Miles

2020

5A

Low

  • Lead
    • No Source Analysis Available

11 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

11 Miles

2020

5A

High

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

11 Miles

2006

5B


2015
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

11 Miles

2014

5B


2015
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

2020

5B


2018
  • Sodium
    • No Source Analysis Available

11 Miles

2010

5A

Low

  • Temperature, water
    • No Source Analysis Available

11 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

11 Miles

2010

5A

High



3

Santa Rosa Creek (San Luis Obispo County)

River & Stream

3310.140101,3310.140102,3310.140201  /  18060010
  • Oxygen, Dissolved
    • No Source Analysis Available

15 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

15 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

15 Miles

2014

5A

Low



3

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

River & Stream

3314.100102,3314.100500,3314.200101,3314.200103,3314.200104,3314.200203,3314.300201,3314.300203,3314.400102,3314.400701,(Total Count: 12)  /  18060010
  • Benthic Community Effects
    • No Source Analysis Available

41 Miles

2014

5A

Low

  • Molybdenum
    • No Source Analysis Available

41 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

41 Miles

2014

5A

High

  • Sedimentation/Siltation
    • A Source Unknown

41 Miles

2006

5A

Low

  • Sodium
    • A Source Unknown

41 Miles

2010

5A

Low

  • Temperature, water
    • No Source Analysis Available

41 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

41 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

41 Miles

2014

5A

Low



3

Santa Ynez River (above Lake Cachuma)

River & Stream

3314.510501,3314.510502,3314.510504,3314.510505  /  18060010
  • Temperature, water
    • No Source Analysis Available

22 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

22 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

22 Miles

2010

5A

Low



3

Santa Ynez River (below city of Lompoc to Ocean)

River & Stream

3314.100500,3314.100602  /  18060010
  • Benthic Community Effects
    • No Source Analysis Available

6.7 Miles

2014

5A

Low

  • Chloride
    • No Source Analysis Available

6.7 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.7 Miles

2010

5A

Low

    The spatial extent of the impaired segment is limited to the reach upstream of the 13th street bridge, where the salinity is less than 1 ppt in 95 percent or more of the samples.
  • Molybdenum
    • No Source Analysis Available

6.7 Miles

2020

5A

Low

  • Nitrate
    • No Source Analysis Available

6.7 Miles

2006

5A

High

  • Oxygen, Dissolved
    • No Source Analysis Available

6.7 Miles

2014

5A

High

  • Sedimentation/Siltation
    • A Source Unknown

6.7 Miles

1996

5A

Low

  • Sodium
    • No Source Analysis Available

6.7 Miles

2010

5A

Low

  • Temperature, water
    • No Source Analysis Available

6.7 Miles

2010

5A

Low

  • Total Dissolved Solids
    • No Source Analysis Available

6.7 Miles

2010

5A

Low

  • Toxicity
    • No Source Analysis Available

6.7 Miles

2014

5A

Low



3

Schwan Lake

Lake & Reservoir

3304.120503  /  18060001
  • Escherichia coli (E. coli)
    • A Source Unknown

23 Acres

2010

5A

Low

  • Nutrients
    • A Source Unknown

23 Acres

1992

5A

Low

  • Total Coliform
    • A Source Unknown

23 Acres

2010

5A

Low



3

Scott Creek Lagoon

River & Stream

3304.110202  / 
  • Chloride
    • Natural Sources

0.28 Miles

2014

5A

Low

  • Copper
    • No Source Analysis Available

0.28 Miles

2014

5A

Low

  • Sodium
    • Natural Sources

0.28 Miles

2014

5A

Low

  • Total Coliform
    • No Source Analysis Available

0.28 Miles

2020

5A

Low



3

Shuman Canyon Creek

River & Stream

3313.000401,3313.000402  /  18060009
  • Sedimentation/Siltation
    • A Source Unknown

8.7 Miles

2006

5A

Low



3

Sisquoc River

River & Stream

3312.100300,3312.200101,3312.200102,3312.200103,3312.200104,3312.200105,3312.200106,3312.200107,3312.200201,3312.200202,(Total Count: 20)  /  18060008
  • pH
    • Natural Sources

60 Miles

2010

5A

Low



3

Sloans Canyon Creek

River & Stream

3314.100300,3314.100500  /  18060013
  • Ammonia
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • Turbidity
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • pH
    • A Source Unknown

6.7 Miles

2014

5A

Low



3

Soda Lake

Saline Lake

31100050  /  18060003
  • Ammonia
    • A Source Unknown

2541 Acres

2014

5A

Low



3

Soquel Creek

River & Stream

3304.130101,3304.130102,3304.130103,3304.130104,3304.130105  /  18060001
  • Enterococcus
    • A Source Unknown

18 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Domestic Pet Waste
    • Transient encampments
    • Urban Runoff/Storm Sewers

18 Miles

2010

5B


2010
  • Oxygen, Dissolved
    • No Source Analysis Available

18 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

18 Miles

2014

5A

Low



3

Soquel Lagoon

Estuary

3304.130104  /  18060001
  • Indicator Bacteria
    • A Source Unknown

1.8 Acres

2014

5B


2010
  • Oxygen, Dissolved
    • No Source Analysis Available

1.8 Acres

2020

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

1.8 Acres

1992

5A

Low

  • Temperature, water
    • No Source Analysis Available

1.8 Acres

2020

5A

Low



3

Stenner Creek

River & Stream

3310.240102,3310.240103  /  18060006
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

7.7 Miles

2014

5A

Low

  • pH
    • No Source Analysis Available

7.7 Miles

2010

5A

Low



3

Struve Slough

River & Stream

3305.100301  /  18060002
  • Chlorophyll-a
    • No Source Analysis Available

2.8 Miles

2010

5A

High

  • Escherichia coli (E. coli)
    • No Source Analysis Available

2.8 Miles

2014

5A

Low

  • Fecal Coliform
    • See TMDL documentation

2.8 Miles

2014

5B


2007
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

2.8 Miles

2014

5B


2016
  • Toxicity
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

2.8 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

2.8 Miles

2010

5A

Low



3

Sycamore Creek

River & Stream

3315.320002  /  18060013
  • Chloride
    • No Source Analysis Available

3.9 Miles

2010

5A

Low

  • Copper
    • No Source Analysis Available

3.9 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • No Source Analysis Available

3.9 Miles

2014

5A

Low

  • Sodium
    • No Source Analysis Available

3.9 Miles

2010

5A

Low

  • Turbidity
    • No Source Analysis Available

3.9 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

3.9 Miles

2010

5A

Low



3

Tecolote Creek (Santa Barbara County)

River & Stream

3315.100103  /  18060013
  • Boron
    • No Source Analysis Available

6.9 Miles

2010

5A

Low

  • Chloride
    • No Source Analysis Available

6.9 Miles

2010

5A

Low

  • Copper
    • No Source Analysis Available

6.9 Miles

2020

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.9 Miles

2014

5A

Low

    Spatial extent is limited to the monitoring station
  • Oxygen, Dissolved
    • No Source Analysis Available

6.9 Miles

2014

5A

Low

  • Sodium
    • No Source Analysis Available

6.9 Miles

2010

5A

Low

  • Specific Conductivity
    • No Source Analysis Available

6.9 Miles

2014

5A

Low

  • Total Dissolved Solids
    • No Source Analysis Available

6.9 Miles

2020

5A

Low



3

Tecolotito Creek

River & Stream

3315.310003  / 
  • Chloride
    • A Source Unknown

0.87 Miles

2014

5A

Low

  • Enterococcus
    • A Source Unknown

0.87 Miles

2014

5A

Low

  • Nitrate
    • Agriculture

0.87 Miles

2014

5B


2014
  • Sodium
    • A Source Unknown

0.87 Miles

2014

5A

Low



3

Tembladero Slough

River & Stream

3309.110000  /  18060011
  • Aluminum
    • No Source Analysis Available

3.4 Miles

2020

5A

Low

  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2014

5B


2018
  • Chlordane
    • No Source Analysis Available

3.4 Miles

2014

5A

Low

  • Chlorophyll-a
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2010

5B


2015
  • Chlorpyrifos
    • Agriculture

3.4 Miles

2010

5B


2011
  • Chromium
    • No Source Analysis Available

3.4 Miles

2014

5A

Low

  • Clothianidin
    • No Source Analysis Available

3.4 Miles

2020

5A

Low

  • Copper
    • No Source Analysis Available

3.4 Miles

2010

5A

Low

  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2014

5B


2018
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

3.4 Miles

2014

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

3.4 Miles

2014

5A

Low

  • Diazinon
    • Agriculture

3.4 Miles

2010

5B


2011
  • Dieldrin
    • No Source Analysis Available

3.4 Miles

2010

5A

Low

  • Disulfoton
    • No Source Analysis Available

3.4 Miles

2020

5A

Low

  • Enterococcus
    • A Source Unknown

3.4 Miles

2010

5A

Low

  • Imidacloprid
    • No Source Analysis Available

3.4 Miles

2020

5A

Low

  • Lead
    • No Source Analysis Available

3.4 Miles

2010

5A

Low

  • Malathion
    • No Source Analysis Available

3.4 Miles

2014

5A

High

  • Methomyl
    • No Source Analysis Available

3.4 Miles

2020

5A

Low

  • Nickel
    • No Source Analysis Available

3.4 Miles

2010

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2010

5B


2015
  • Oxyfluorfen
    • No Source Analysis Available

3.4 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2014

5B


2015
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2014

5B


2018
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2020

5B


2018
  • Selenium
    • No Source Analysis Available

3.4 Miles

2020

5A

Low

  • Thiamethoxam
    • No Source Analysis Available

3.4 Miles

2020

5A

Low

  • Total Coliform
    • No Source Analysis Available

3.4 Miles

2010

5A

Low

  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2014

5B


2018
  • Turbidity
    • No Source Analysis Available

3.4 Miles

2010

5A

High

  • pH
    • No Source Analysis Available

3.4 Miles

2010

5A

Low



3

Tequisquita Slough

River & Stream

3305.300200  /  18060002
  • Chlorophyll-a
    • No Source Analysis Available

7.3 Miles

2010

5A

High

  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

7.3 Miles

2002

5B


2010
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.3 Miles

2020

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.3 Miles

2014

5B


2016
  • Selenium
    • No Source Analysis Available

7.3 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

7.3 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

7.3 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

7.3 Miles

2010

5A

Low



3

Toro Creek

River & Stream

3310.180000  /  18060006
  • Copper
    • No Source Analysis Available

11 Miles

2020

5A

Low



3

Tres Pinos Creek

River & Stream

3305.300200,3305.500403,3305.500405,3305.500406,3305.500407,3305.500703,3305.500705  /  18060002
  • Boron
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • Escherichia coli (E. coli)
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • Sodium
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • Turbidity
    • No Source Analysis Available

30 Miles

2010

5A

Low

  • pH
    • Natural Sources
    • No Source Analysis Available

30 Miles

2010

5A

Low



3

Tularcitos Creek

River & Stream

3307.000302,3307.000303,3307.000304  /  18060012
  • Chloride
    • No Source Analysis Available

14 Miles

2010

5A

Low

  • Sodium
    • No Source Analysis Available

14 Miles

2010

5A

Low



3

Unnamed tributary to Orcutt Creek

River & Stream

3312.100300  /  18060008
  • Ammonia
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

4.5 Miles

2014

5B


2016
  • Benthic Community Effects
    • No Source Analysis Available

4.5 Miles

2020

5A

Low

  • Chlorpyrifos
    • Agriculture

4.5 Miles

2014

5B


2015
  • Diazinon
    • Agriculture

4.5 Miles

2014

5B


2015
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Urban Runoff/Storm Sewers

4.5 Miles

2014

5B


2016
  • Toxicity
    • Agriculture

4.5 Miles

2014

5B


2015
  • Turbidity
    • A Source Unknown

4.5 Miles

2014

5A

Low



3

Uvas Creek (above Uvas Reservoir)

River & Stream

3305.200101,3305.200105  /  18060002
  • Temperature, water
    • No Source Analysis Available

8.2 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

8.2 Miles

2010

5A

Low



3

Uvas Creek (below Uvas Reservoir)

River & Stream

3305.200102,3305.200201,3305.300100,3305.300200  /  18060002
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B


2016
  • Turbidity
    • No Source Analysis Available

14 Miles

2010

5A

Low



3

Uvas Reservoir

Lake & Reservoir

3305.200101,3305.200102,3305.200201  /  18060002
  • Mercury
    • No Source Analysis Available

272 Acres

2010

5A

Low



3

Valencia Creek

River & Stream

3304.130201,3304.130203  /  18060001
  • Aluminum
    • No Source Analysis Available

6.3 Miles

2020

5A

Low

  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Domestic Pet Waste
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2014

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

6.3 Miles

2002

5A

Low



3

Waddell Creek Lagoon

River & Stream

3304.110101  / 
  • Selenium
    • No Source Analysis Available

0.39 Miles

2020

5A

Low

  • pH
    • No Source Analysis Available

0.39 Miles

2014

5A

Low



3

Warden Creek

River & Stream

3310.230003  /  18060006
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

6 Miles

2010

5B


2005
  • Oxygen, Dissolved
    • No Source Analysis Available

6 Miles

2014

5A

Low

  • Toxicity
    • No Source Analysis Available

6 Miles

2014

5A

Low



3

Watsonville Creek

River & Stream

30510030  /  18060011
  • Escherichia coli (E. coli)
    • No Source Analysis Available

4.8 Miles

2010

5A

Low

  • Nitrate
    • No Source Analysis Available

4.8 Miles

2010

5A

High

  • Oxygen, Dissolved
    • No Source Analysis Available

4.8 Miles

2014

5A

High

  • Turbidity
    • No Source Analysis Available

4.8 Miles

2010

5A

Low

  • pH
    • No Source Analysis Available

4.8 Miles

2010

5A

High



3

Watsonville Slough

River & Stream

3305.100301  /  18060002
  • Aluminum
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • Chlorpyrifos
    • No Source Analysis Available

6.2 Miles

2010

5A

Low

  • Copper
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

6.2 Miles

2014

5A

Low

  • Imidacloprid
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • Malathion
    • No Source Analysis Available

6.2 Miles

2014

5A

Low

  • Nickel
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.2 Miles

2014

5B


2016
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.2 Miles

2014

5B


2016
  • Pyrethroids
    • No Source Analysis Available

6.2 Miles

2020

5A

Low

  • Toxicity
    • No Source Analysis Available

6.2 Miles

2014

5A

Low

  • Turbidity
    • No Source Analysis Available

6.2 Miles

2010

5A

Low



3

Willow Creek (Monterey County)

River & Stream

3308.000602,3308.000603  /  18060006
  • pH
    • No Source Analysis Available

4.8 Miles

2010

5A

Low



3

Yerba Buena Creek

River & Stream

3309.811401  /  18060005
  • Oxygen, Dissolved
    • No Source Analysis Available

6 Miles

2014

5A

Low



3

Zayante Creek

River & Stream

3304.120202,3304.120401,3304.120402  /  18060001
  • Chlorpyrifos
    • A Source Unknown

9.3 Miles

2010

5B


2015
  • Sedimentation/Siltation
    • Channel Erosion
    • Habitat Modification
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Road Construction

9.3 Miles

2002

5B


2004
  • Toxicity
    • No Source Analysis Available

9.3 Miles

2014

5A

Low



4

Alamitos Bay

Bay & Harbor

4405.120000,4405.150000,4412.100000,4801.110000  /  18070104
  • Copper
    • A Source Unknown

328 Acres

2014

5A

Low

  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

328 Acres

2024

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

328 Acres

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

328 Acres

2006

5B


2024
  • Oxygen, Dissolved
    • A Source Unknown

328 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

328 Acres

2024

5A

Low



4

Alhambra Wash

River & Stream

40531000  /  18070105
  • Ammonia
    • Other

6.9 Miles

2014

5A

Low



4

Alondra Park Lake

Lake & Reservoir

4411.010000  /  18070104
  • Mercury
    • A Source Unknown

8.5 Acres

2014

5A

Low



4

Artesia-Norwalk Drain

River & Stream

40515010  /  18070104
  • Indicator Bacteria
    • A Source Unknown

2.5 Miles

2010

5B


2016
  • Selenium
    • A Source Unknown

2.5 Miles

2010

5A

Low



4

Arundell Barranca (Ventura County)

River & Stream

40311000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

5.1 Miles

2014

5A

Low



4

Balboa Lake

Lake & Reservoir

4412.210000  /  18070105
  • Oxygen, Dissolved
    • A Source Unknown

28 Acres

2014

5A

Low

  • Temperature, water
    • A Source Unknown

28 Acres

2014

5A

Low

  • Toxicity
    • A Source Unknown

28 Acres

2014

5A

Low



4

Ballona Creek

River & Stream

40513000  /  18070104
  • Aluminum
    • A Source Unknown

6.5 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

6.5 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

6.5 Miles

2028

5A

Low

    LOE 2372 on which the original listing was based has been reviewed and found to not contain any data for Ballona Creek and was incorrectly applied to this waterbody.
  • Copper
    • A Source Unknown

6.5 Miles

1800

5B


2005
  • Cyanide
    • A Source Unknown

6.5 Miles

1996

5A

Low

  • Cyfluthrin
    • A Source Unknown

6.5 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

6.5 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown
    • Agriculture

6.5 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

6.5 Miles

2028

5A

Low

  • Deltamethrin
    • A Source Unknown

6.5 Miles

2014

5A

Low

  • Esfenvalerate/Fenvalerate
    • A Source Unknown

6.5 Miles

2014

5A

Low

  • Fipronil
    • A Source Unknown

6.5 Miles

2014

5A

Low

  • Imidacloprid
    • A Source Unknown

6.5 Miles

2024

5A

Low

  • Indicator Bacteria
    • Nonpoint Source
    • Point Source

6.5 Miles

2014

5B


2007
  • Lead
    • A Source Unknown

6.5 Miles

2002

5B


2005
  • Permethrin
    • A Source Unknown

6.5 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

6.5 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

6.5 Miles

1996

5B


2005
  • Trash
    • A Source Unknown

6.5 Miles

1996

5B


2001
  • Viruses (enteric)
    • Nonpoint Source
    • Point Source

6.5 Miles

1996

5B


2007
  • Zinc
    • A Source Unknown

6.5 Miles

1996

5B


2005
  • pH
    • A Source Unknown

6.5 Miles

2028

5A

Low



4

Bear Creek (Los Angeles County)

River & Stream

4405.430000  /  18070106
  • pH
    • A Source Unknown

11 Miles

2014

5A

Low



4

Boulder Creek (Ventura County)

River & Stream

40331000  /  18070102
  • Bifenthrin
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • Fenpropathrin
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • Permethrin
    • A Source Unknown

6.7 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

6.7 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

6.7 Miles

2014

5A

Low



4

Bouquet Canyon Creek (below Bouqet Reservoir)

River & Stream

40352000  /  18070102
  • Bifenthrin
    • A Source Unknown

19 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

19 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

19 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

19 Miles

2014

5A

Low

  • Deltamethrin
    • A Source Unknown

19 Miles

2014

5A

Low

  • Esfenvalerate/Fenvalerate
    • A Source Unknown

19 Miles

2014

5A

Low

  • Fipronil
    • A Source Unknown

19 Miles

2014

5A

Low

  • Fipronil Sulfone
    • A Source Unknown

19 Miles

2014

5A

Low

  • Imidacloprid
    • A Source Unknown

19 Miles

2024

5A

Low

  • Permethrin
    • A Source Unknown

19 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

19 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

19 Miles

2014

5A

Low



4

Bull Creek (Los Angeles County)

River & Stream

40521000  /  18070105
  • Copper
    • A Source Unknown

6.6 Miles

2024

5A

Low

  • Indicator Bacteria
    • Domestic Animals/Livestock
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

6.6 Miles

2024

5B


2012
  • Toxicity
    • A Source Unknown

6.6 Miles

2014

5A

Low



4

Burbank Western Channel

River & Stream

40521000  /  18070105
  • Chlorine
    • A Source Unknown

13 Miles

2024

5A

Low

  • Copper
    • A Source Unknown

13 Miles

2006

5B


2005
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2010

5B


2012
  • Lead
    • A Source Unknown

13 Miles

2006

5B


2005
  • Selenium
    • A Source Unknown

13 Miles

2010

5A

Low

  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

13 Miles

1996

5B


2008
  • pH
    • A Source Unknown

13 Miles

2024

5A

Low



4

Calleguas Creek Reach 10 (Aroyo Conejo: Conejo Creek to North Fork Arroyo Conejo)

River & Stream

4408.230000,4408.240000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

2.8 Miles

1996

5B


2003
  • Bifenthrin
    • A Source Unknown

2.8 Miles

2024

5A

Low

  • ChemA (tissue)
    • Agriculture-storm runoff

2.8 Miles

1996

5B


2006
  • Chlordane
    • A Source Unknown

2.8 Miles

1996

5B


2006
  • Chloride
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

2.8 Miles

2002

5B


2008
  • Chlorpyrifos
    • A Source Unknown

2.8 Miles

2006

5B


2006
  • Cyfluthrin
    • A Source Unknown

2.8 Miles

2024

5A

Low

  • Cypermethrin
    • A Source Unknown

2.8 Miles

2024

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

2.8 Miles

1800

5B


2006
  • DDT (tissue)
    • Nonpoint Source

2.8 Miles

2016

5B


2006
  • Indicator Bacteria
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Nitrogen, Nitrite
    • Nonpoint Source
    • Point Source

2.8 Miles

1996

5B


2003
  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

2.8 Miles

1996

5B


2006
  • Permethrin
    • A Source Unknown

2.8 Miles

2024

5A

Low

  • Pyrethroids
    • A Source Unknown

2.8 Miles

2024

5A

Low

  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

2.8 Miles

2002

5B


2008
  • Total Dissolved Solids
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

2.8 Miles

2002

5B


2008
  • Toxaphene
    • See TMDL documentation

2.8 Miles

1800

5B


2006
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

2.8 Miles

1988

5B


2006
  • Toxicity
    • Nonpoint Source
    • Point Source

2.8 Miles

1996

5B


2010
  • Trash
    • A Source Unknown

2.8 Miles

2010

5A

Low



4

Calleguas Creek Reach 11 (Arroyo Santa Rosa)

River & Stream

4408.230000,4408.250000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

9.3 Miles

1996

5B


2003
  • ChemA (tissue)
    • Agriculture-storm runoff

9.3 Miles

1996

5B


2006
  • Chlordane
    • A Source Unknown

9.3 Miles

1996

5B


2006
  • DDT (tissue)
    • Nonpoint Source

9.3 Miles

2016

5B


2006
  • Dieldrin
    • A Source Unknown

9.3 Miles

2006

5B


2006
  • Endosulfan (tissue)
    • Agriculture-storm runoff

9.3 Miles

2016

5B


2006
  • Indicator Bacteria
    • A Source Unknown

9.3 Miles

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

9.3 Miles

1996

5B


2006
  • Sedimentation/Siltation
    • Agriculture
    • Natural Sources

9.3 Miles

2002

5A

Low

  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

9.3 Miles

2002

5B


2008
  • Total Dissolved Solids
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

9.3 Miles

2002

5B


2008
  • Toxaphene (tissue & sediment)
    • Nonpoint Source
    • Point Source

9.3 Miles

2016

5B


2006
  • Toxicity
    • Nonpoint Source
    • Point Source

9.3 Miles

1996

5B


2005


4

Calleguas Creek Reach 13 (Arroyo Conejo above North Fork Arroyo Conejo)

River & Stream

4408.240000,4408.280000  /  18070104
  • Ammonia
    • Nonpoint Source
    • Point Source

17 Miles

1996

5B


2003
  • Bifenthrin
    • A Source Unknown

17 Miles

2024

5A

Low

  • ChemA (tissue)
    • Agriculture-storm runoff

17 Miles

1996

5B


2006
  • Chlordane
    • A Source Unknown

17 Miles

1996

5B


2006
  • Chloride
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

17 Miles

2002

5B


2008
  • Cyfluthrin
    • A Source Unknown

17 Miles

2024

5A

Low

  • Cypermethrin
    • A Source Unknown

17 Miles

2024

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

17 Miles

1800

5B


2006
  • DDT (tissue)
    • Nonpoint Source

17 Miles

2016

5B


2005
  • Deltamethrin
    • A Source Unknown

17 Miles

2024

5A

Low

  • Endosulfan (tissue)
    • Agriculture-storm runoff

17 Miles

2016

5B


2006
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

17 Miles

1996

5B


2006
  • Permethrin
    • A Source Unknown

17 Miles

2024

5A

Low

  • Pyrethroids
    • A Source Unknown

17 Miles

2024

5A

Low

  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

17 Miles

2002

5B


2008
  • Toxaphene
    • See TMDL documentation

17 Miles

1800

5B


2006
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

17 Miles

2016

5B


2006
  • Toxicity
    • Nonpoint Source
    • Point Source

17 Miles

1996

5B


2006


4

Calleguas Creek Reach 2 (Estuary to Potrero Rd.)

River & Stream

4408.110000,4408.120000,4408.130000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

4.3 Miles

1996

5B


2003
  • ChemA
    • Agriculture-storm runoff

4.3 Miles

2028

5B


2006
    Historical use of pesticides and lubricants.
  • Chlordane
    • A Source Unknown

4.3 Miles

1800

5B


2006
  • Copper
    • Nonpoint Source

4.3 Miles

2028

5B


2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • Nonpoint Source

4.3 Miles

1996

5B


2005
  • Dieldrin
    • A Source Unknown

4.3 Miles

2006

5B


2006
  • Endosulfan
    • Agriculture-storm runoff

4.3 Miles

1988

5B


2006
  • Indicator Bacteria
    • A Source Unknown

4.3 Miles

2014

5A

Low

    Area affected is at the mouth of the creek.
  • PCBs (Polychlorinated biphenyls)
    • Nonpoint Source
    • Point Source

4.3 Miles

1800

5B


2005
  • Sedimentation/Siltation
    • A Source Unknown

4.3 Miles

2002

5A

Low

  • Toxaphene
    • Nonpoint Source

4.3 Miles

1800

5B


2005
  • Toxicity
    • Nonpoint Source
    • Point Source

4.3 Miles

2014

5B


2005
  • Trash
    • A Source Unknown

4.3 Miles

2010

5A

Low



4

Calleguas Creek Reach 3 (Potrero Rd. to Conejo Creek)

River & Stream

4408.120000  /  18070103
  • Aluminum
    • A Source Unknown

3.5 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

3.5 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

3.5 Miles

1996

5B


2006
  • Chloride
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

3.5 Miles

2002

5B


2008
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3.5 Miles

1996

5B


2006
  • Dieldrin
    • A Source Unknown

3.5 Miles

2006

5B


2006
  • Indicator Bacteria
    • A Source Unknown

3.5 Miles

2014

5A

Low

  • Nitrate and Nitrite
    • Nonpoint Source
    • Point Source

3.5 Miles

1996

5B


2003
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3.5 Miles

1996

5B


2006
  • Pyrethroids
    • A Source Unknown

3.5 Miles

2024

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

3.5 Miles

2002

5A

Low

  • Total Dissolved Solids
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

3.5 Miles

2002

5B


2008
  • Toxaphene
    • A Source Unknown

3.5 Miles

1988

5B


2019
  • Toxicity
    • A Source Unknown

3.5 Miles

2024

5B


2006
  • Trash
    • A Source Unknown

3.5 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

3.5 Miles

2024

5A

Low



4

Calleguas Creek Reach 4 (Revolon Slough)

River & Stream

4408.110000  /  18070103
  • Aluminum
    • A Source Unknown

8 Miles

2014

5A

Low

  • Benthic Community Effects
    • A Source Unknown

8 Miles

2024

5A

Low

  • ChemA (tissue)
    • Agriculture-storm runoff

8 Miles

1996

5B


2006
    Historical use of pesticides and lubricants.
  • Chlordane (tissue & sediment)
    • Nonpoint Source

8 Miles

2016

5B


2005
  • Chlorpyrifos
    • See TMDL documentation

8 Miles

2002

5B


2006
  • Chlorpyrifos (tissue)
    • Nonpoint Source

8 Miles

2016

5B


2005
    Chlorpyrifos also exceeds in water.
  • Diazinon
    • A Source Unknown

8 Miles

2006

5B


2006
  • Dieldrin (tissue)
    • Nonpoint Source

8 Miles

2006

5B


2005
  • Endosulfan (tissue & sediment)
    • Agriculture-storm runoff

8 Miles

2006

5B


2006
  • Fecal Coliform
    • A Source Unknown

8 Miles

2016

5A

Low

  • Nitrate as Nitrate (NO3)
    • Nonpoint Source
    • Point Source

8 Miles

1996

5B


2003
  • Nitrogen
    • Nonpoint Source

8 Miles

2002

5B


2003
  • PCBs (Polychlorinated biphenyls) (tissue)
    • Nonpoint Source

8 Miles

2016

5B


2005
  • Sedimentation/Siltation
    • A Source Unknown

8 Miles

2002

5A

Low

  • Selenium
    • Nonpoint Source

8 Miles

2002

5B


2007
  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • A Source Unknown

8 Miles

2014

5B


2005
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

8 Miles

2016

5B


2005
  • Toxicity
    • A Source Unknown

8 Miles

1996

5B


2005
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

8 Miles

2002

5B


2008


4

Calleguas Creek Reach 5 (Beardsley Channel)

River & Stream

4408.110000,4408.210000  /  18070103
  • ChemA (tissue)
    • Agriculture-storm runoff

3.5 Miles

1996

5B


2006
  • Chlordane (tissue & sediment)
    • Nonpoint Source

3.5 Miles

2016

5B


2005
  • Chlorpyrifos (tissue)
    • Nonpoint Source

3.5 Miles

2016

5B


2006
    Chlorpyrifos also exceeds in water.
  • DDT (tissue & sediment)
    • Nonpoint Source

3.5 Miles

2016

5B


2005
  • Diazinon
    • A Source Unknown

3.5 Miles

2006

5B


2006
  • Dieldrin (tissue)
    • Nonpoint Source

3.5 Miles

2016

5B


2005
  • Endosulfan (tissue & sediment)
    • Agriculture-storm runoff

3.5 Miles

2016

5B


2006
  • Nitrogen
    • Nonpoint Source

3.5 Miles

2002

5B


2003
  • PCBs (Polychlorinated biphenyls) (tissue)
    • Nonpoint Source

3.5 Miles

2016

5B


2005
  • Sedimentation/Siltation
    • A Source Unknown

3.5 Miles

2002

5A

Low

  • Toxaphene (tissue & sediment)
    • Nonpoint Source

3.5 Miles

2016

5B


2005
  • Toxicity
    • Nonpoint Source

3.5 Miles

1996

5B


2006
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

3.5 Miles

2002

5B


2008


4

Calleguas Creek Reach 6 (Conejo Creek to Hitch Rd.)

River & Stream

4408.120000,4408.220000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

15 Miles

1996

5B


2003
  • Bifenthrin
    • A Source Unknown

15 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

15 Miles

1996

5B


2006
  • Chloride
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

15 Miles

2002

5B


2008
  • Chlorpyrifos
    • A Source Unknown

15 Miles

2006

5B


2006
  • Cyfluthrin
    • A Source Unknown

15 Miles

2024

5A

Low

  • Cypermethrin
    • A Source Unknown

15 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

15 Miles

1800

5B


2006
  • DDT (sediment)
    • Nonpoint Source

15 Miles

2016

5B


2006
  • Dieldrin
    • A Source Unknown

15 Miles

2006

5B


2006
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

Low

  • Nitrate and Nitrite
    • Nonpoint Source
    • Point Source

15 Miles

1996

5B


2003
  • Nitrate as Nitrate (NO3)
    • Nonpoint Source
    • Point Source

15 Miles

1996

5B


2003
  • Nitrogen, Nitrate
    • A Source Unknown

15 Miles

2014

5B


2003
  • Permethrin
    • A Source Unknown

15 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

15 Miles

2024

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

15 Miles

2002

5A

Low

  • Selenium
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Other Urban Runoff
    • See TMDL documentation

15 Miles

2014

5B


2007
  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

15 Miles

2002

5B


2008
  • Total Dissolved Solids
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

15 Miles

2002

5B


2008
  • Toxaphene
    • A Source Unknown

15 Miles

2024

5B


2006
  • Toxicity
    • A Source Unknown

15 Miles

1996

5B


2006


4

Calleguas Creek Reach 7 (Arroyo Simi)

River & Stream

4408.220000,4408.270000  /  18070103
  • Ammonia
    • See TMDL documentation

14 Miles

1996

5B


2003
  • Bifenthrin
    • A Source Unknown

14 Miles

2014

5A

Low

  • Boron
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

14 Miles

2002

5B


2008
  • Chlordane
    • See TMDL documentation

14 Miles

2014

5B


2006
  • Chloride
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

14 Miles

2002

5B


2008
  • Chlorpyrifos
    • A Source Unknown

14 Miles

2006

5B


2006
  • Copper
    • A Source Unknown

14 Miles

2024

5B


2006
  • Cyfluthrin
    • A Source Unknown

14 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

14 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

14 Miles

2014

5B


2006
  • Deltamethrin
    • A Source Unknown

14 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

14 Miles

2002

5A

Low

  • Iron
    • A Source Unknown

14 Miles

2024

5A

Low

  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

14 Miles

2024

5B


2003
  • Permethrin
    • A Source Unknown

14 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

14 Miles

2024

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

14 Miles

2002

5A

Low

  • Selenium
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Other Urban Runoff
    • See TMDL documentation

14 Miles

2024

5B


2007
  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

14 Miles

2002

5B


2008
  • Total Dissolved Solids
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

14 Miles

2002

5B


2008
  • Toxicity
    • See TMDL documentation

14 Miles

1996

5B


2006
  • Trash
    • A Source Unknown

14 Miles

2010

5A

Low



4

Calleguas Creek Reach 8 (Tapo Canyon Creek)

River & Stream

4408.260000,4408.270000  /  18070103
  • Boron
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

7.3 Miles

2002

5B


2008
  • Chlordane
    • A Source Unknown

7.3 Miles

1996

5B


2006
  • Chloride
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

7.3 Miles

2002

5B


2008
  • Chlorpyrifos
    • A Source Unknown

7.3 Miles

2006

5B


2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

7.3 Miles

1996

5B


2006
  • Diazinon
    • A Source Unknown

7.3 Miles

2002

5B


2006
  • Dieldrin
    • A Source Unknown

7.3 Miles

2006

5B


2006
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

7.3 Miles

1996

5B


2006
  • Sedimentation/Siltation
    • A Source Unknown

7.3 Miles

2002

5A

Low

  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

7.3 Miles

2002

5B


2008
  • Total Dissolved Solids
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

7.3 Miles

2002

5B


2008
  • Toxaphene
    • A Source Unknown

7.3 Miles

1988

5B


2006


4

Calleguas Creek Reach 9A (Conejo Creek: Calleguas Creek Reach 3 to Camrosa Diversion)

River & Stream

4408.120000  /  18070103
  • ChemA (tissue)
    • Agriculture-storm runoff

1.7 Miles

1996

5B


2006
  • Chlordane
    • See TMDL documentation

1.7 Miles

1800

5B


2006
  • Chlordane (tissue)
    • Nonpoint Source

1.7 Miles

2016

5B


2006
    Historical use of pesticides and lubricants.
  • Chloride
    • Agriculture
    • Atmospheric Deposition
    • Groundwater Withdrawal
    • See TMDL documentation

1.7 Miles

2024

5B


2008
  • Chlorpyrifos
    • A Source Unknown

1.7 Miles

2006

5B


2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

1.7 Miles

1800

5B


2006
  • DDT (tissue)
    • Nonpoint Source

1.7 Miles

2016

5B


2005
  • Diazinon
    • A Source Unknown

1.7 Miles

2006

5B


2006
  • Dieldrin
    • See TMDL documentation

1.7 Miles

1800

5B


2006
  • Dieldrin (tissue)
    • Nonpoint Source

1.7 Miles

2016

5B


2006
    Historical use of pesticides and lubricants.
  • Endosulfan (tissue)
    • Agriculture-storm runoff

1.7 Miles

2016

5B


2006
  • Indicator Bacteria
    • A Source Unknown

1.7 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

1.7 Miles

2014

5A

Low

  • Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
    • See TMDL documentation

1.7 Miles

1800

5B


2006
  • Lindane/gamma-Hexachlorocyclohexane (gamma-HCH) (tissue)
    • Agriculture-storm runoff

1.7 Miles

2016

5B


2006
    Historical use of pesticides and lubricants.
  • Nitrate as Nitrate (NO3)
    • Nonpoint Source
    • Point Source

1.7 Miles

1996

5B


2003
  • Nitrogen, Nitrate
    • Nonpoint Source
    • Point Source

1.7 Miles

1996

5B


2003
  • Nitrogen, Nitrite
    • A Source Unknown

1.7 Miles

2028

5B


2003
  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

1.7 Miles

1800

5B


2006
  • PCBs (Polychlorinated biphenyls) (tissue)
    • Nonpoint Source

1.7 Miles

2016

5B


2005
    Historical use of pesticides and lubricants.
  • Total Dissolved Solids
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

1.7 Miles

2002

5B


2008
  • Toxaphene
    • See TMDL documentation

1.7 Miles

1800

5B


2006
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

1.7 Miles

2016

5B


2005
  • Toxicity
    • A Source Unknown

1.7 Miles

1996

5B


2006
  • Trash
    • A Source Unknown

1.7 Miles

2010

5A

Low



4

Calleguas Creek Reach 9B (Conejo Creek: Camrosa Diversion to Arroyo Santa Rosa)

River & Stream

4408.120000,4408.230000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

6 Miles

1996

5B


2003
  • ChemA (tissue)
    • Agriculture-storm runoff

6 Miles

1996

5B


2006
  • Chlordane
    • A Source Unknown

6 Miles

1996

5B


2006
  • Chloride
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

6 Miles

2002

5B


2008
  • Chlorpyrifos
    • A Source Unknown

6 Miles

2006

5B


2006
  • DDT (tissue)
    • Nonpoint Source

6 Miles

2016

5B


2006
  • Diazinon
    • A Source Unknown

6 Miles

2006

5B


2006
  • Dieldrin
    • A Source Unknown

6 Miles

2006

5B


2006
  • Endosulfan (tissue)
    • Agriculture-storm runoff

6 Miles

2016

5B


2006
  • Indicator Bacteria
    • A Source Unknown

6 Miles

2010

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

6 Miles

1996

5B


2006
  • Sulfates
    • A Source Unknown

6 Miles

2002

5B


2008
  • Total Dissolved Solids
    • A Source Unknown

6 Miles

2002

5B


2008
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

6 Miles

2016

5B


2006
  • Toxicity
    • Nonpoint Source
    • Point Source

6 Miles

1996

5B


2006
  • Trash
    • A Source Unknown

6 Miles

2010

5A

Low



4

Canada Larga (Ventura River Watershed)

River & Stream

40210010  /  18070103
  • Oxygen, Dissolved
    • A Source Unknown

8.2 Miles

2014

5B


2013
  • Total Dissolved Solids
    • A Source Unknown

8.2 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

8.2 Miles

2024

5A

Low



4

Casitas, Lake

Lake & Reservoir

40220032  /  18070101
  • Mercury
    • A Source Unknown
    • Natural Sources

2423 Acres

2010

5A

Low



4

Castaic Lagoon

Lake & Reservoir

4403.510000,4403.510000  /  18070102
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

193 Acres

2014

5A

Low



4

Castaic Lake

Lake & Reservoir

4403.510000  /  18070102
  • Mercury
    • A Source Unknown

2231 Acres

2010

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2231 Acres

2014

5A

Low



4

Centinela Creek

River & Stream

4404.610000, 4404.630000  / 
  • Copper
    • A Source Unknown

4 Miles

2024

5A

Low

  • Indicator Bacteria
    • Natural Sources
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

4 Miles

2024

5B


2008
  • Lead
    • A Source Unknown

4 Miles

2024

5A

Low

  • Zinc
    • A Source Unknown

4 Miles

2024

5A

Low



4

Channel Islands Harbor

Bay & Harbor

4410.000000  /  18070103
  • Bifenthrin
    • A Source Unknown

209 Acres

2024

5A

Low

  • Permethrin
    • A Source Unknown

209 Acres

2024

5A

Low



4

Clark Channel

River & Stream

4405.150000  / 
  • Aluminum
    • A Source Unknown

6.4 Miles

2024

5A

Low

  • Copper
    • A Source Unknown

6.4 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

6.4 Miles

2024

5A

Low

  • Oil and Grease
    • A Source Unknown

6.4 Miles

2024

5A

Low



4

Cold Creek (Los Angeles County)

River & Stream

4404.210000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

5.5 Miles

2024

5A

Low



4

Compton Creek

River & Stream

4412.100000  /  18070104
  • Aluminum
    • A Source Unknown

8.5 Miles

2014

5A

Low

  • Benthic Community Effects
    • A Source Unknown

8.5 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

8.5 Miles

1996

5B


2008
  • Indicator Bacteria
    • See TMDL documentation

8.5 Miles

2014

5B


2012
  • Lead
    • A Source Unknown

8.5 Miles

1996

5B


2005
  • Trash
    • Nonpoint Source

8.5 Miles

2006

5B


2008
  • Zinc
    • A Source Unknown

8.5 Miles

2014

5B


2008
  • pH
    • Nonpoint Source
    • Point Source

8.5 Miles

1996

5B


2004


4

Coyote Creek

River & Stream

4405.150000,4845.150000,4845.610000,4845.620000  /  18070104
  • Aluminum
    • A Source Unknown

14 Miles

2028

5A

Low

  • Chlorine
    • A Source Unknown

14 Miles

2024

5A

Low

  • Copper, Dissolved
    • A Source Unknown

14 Miles

2016

5B


2007
  • Indicator Bacteria
    • A Source Unknown

14 Miles

1996

5B


2016
  • Iron
    • A Source Unknown

14 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

14 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

14 Miles

2002

5A

Low

  • pH
    • A Source Unknown

14 Miles

2006

5A

Low



4

Coyote Creek, North Fork

River & Stream

4405.150000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

5 Miles

2010

5B


2016
  • Oil and Grease
    • A Source Unknown

5 Miles

2024

5A

Low

  • Selenium
    • A Source Unknown

5 Miles

2010

5A

Low

  • Zinc
    • A Source Unknown

5 Miles

2010

5A

Low



4

Crystal Lake

Lake & Reservoir

4405.430000  /  18070106
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

6.7 Acres

1998

5A

Low



4

Dominguez Channel (lined portion above Vermont Ave)

River & Stream

4411.010000  /  18070104
  • Aluminum
    • A Source Unknown

6.8 Miles

2028

5A

Low

  • Copper
    • A Source Unknown

6.8 Miles

1996

5B


2012
  • Indicator Bacteria
    • A Source Unknown

6.8 Miles

2006

5A

High

  • Lead
    • A Source Unknown

6.8 Miles

1800

5B


2012
  • Toxicity
    • A Source Unknown

6.8 Miles

2010

5B


2012
  • Zinc
    • A Source Unknown

6.8 Miles

1800

5B


2012


4

Dominguez Channel Estuary (unlined portion below Vermont Ave)

Estuary

4411.010000,4411.020000,4411.040000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

16 Acres

1996

5B


2012
  • Benzo(a)anthracene
    • Agriculture-storm runoff

16 Acres

2006

5B


2012
  • Benzo(a)pyrene
    • A Source Unknown

16 Acres

1996

5B


2012
  • Chlordane
    • See TMDL documentation

16 Acres

1800

5B


2012
  • Chlordane (tissue)
    • A Source Unknown

16 Acres

2016

5B


2012
  • Chrysene (C1-C4)
    • A Source Unknown

16 Acres

2006

5B


2012
  • Copper
    • Other

16 Acres

1800

5B


2012
  • DDT (tissue & sediment)
    • A Source Unknown

16 Acres

2016

5B


2012
  • Dieldrin (tissue)
    • A Source Unknown

16 Acres

2016

5B


2012
  • Indicator Bacteria
    • A Source Unknown

16 Acres

2014

5A

Low

  • Lead
    • A Source Unknown

16 Acres

1800

5B


2012
  • PCBs (Polychlorinated biphenyls)
    • Agriculture
    • Agriculture-animal
    • Agriculture-grazing

16 Acres

1996

5B


2012
  • Phenanthrene
    • A Source Unknown

16 Acres

2006

5B


2012
  • Pyrene
    • A Source Unknown

16 Acres

2006

5B


2012
  • Toxicity
    • A Source Unknown

16 Acres

2014

5B


2012
  • Zinc
    • See TMDL documentation

16 Acres

2014

5B


2012


4

Downtown Shoreline Marina part of San Pedro Bay Near Off Shore Zones

Bay & Harbor

4405.120000,4405.150000,4411.010000,4411.030000,4411.040000,4412.100000  /  18070104
  • Copper
    • A Source Unknown

83 Acres

2014

5B


2012
  • Oxygen, Dissolved
    • A Source Unknown

83 Acres

2014

5A

Low



4

Dry Canyon Creek (Ventura County)

River & Stream

4408.270000  / 
  • Bifenthrin
    • A Source Unknown

0.42 Miles

2024

5A

Low

  • Cyfluthrin
    • A Source Unknown

0.42 Miles

2024

5A

Low

  • Cypermethrin
    • A Source Unknown

0.42 Miles

2024

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

0.42 Miles

2024

5B


2006
  • Permethrin
    • A Source Unknown

0.42 Miles

2024

5A

Low

  • Pyrethroids
    • A Source Unknown

0.42 Miles

2024

5A

Low

  • Toxaphene
    • A Source Unknown

0.42 Miles

2024

5A

Low



4

Duck Pond Agricultural Drains/Mugu Drain/Oxnard Drain No 2

River & Stream

4408.110000,4408.130000  /  18070103
  • Bifenthrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • ChemA
    • Nonpoint Source

12 Miles

2028

5B


2006
  • Chlordane
    • A Source Unknown

12 Miles

1800

5B


2006
  • Chlorpyrifos
    • A Source Unknown

12 Miles

2014

5B


2006
  • Cyfluthrin
    • A Source Unknown

12 Miles

2024

5A

Low

  • Cypermethrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

12 Miles

2014

5B


2006
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

12 Miles

2014

5B


2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

12 Miles

1800

5B


2006
  • Deltamethrin
    • A Source Unknown

12 Miles

2024

5A

Low

  • Fenpropathrin
    • A Source Unknown

12 Miles

2024

5A

Low

  • Malathion
    • A Source Unknown

12 Miles

2014

5A

Low

  • Nitrogen
    • Nonpoint Source

12 Miles

1996

5B


2003
  • Nitrogen, Nitrate
    • See TMDL documentation

12 Miles

2014

5B


2003
  • Organophosphate Pesticides
    • See TMDL documentation

12 Miles

2024

5B


2006
  • Permethrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

12 Miles

2024

5A

Low

  • Selenium
    • A Source Unknown

12 Miles

2024

5A

Low

  • Toxaphene
    • A Source Unknown

12 Miles

1800

5B


2006
  • Toxicity
    • Nonpoint Source

12 Miles

1996

5B


2005


4

Earvin Magic Johnson Park Lakes (Los Angeles County)

Lake & Reservoir

4412.100000  / 
  • Mercury
    • A Source Unknown

13 Acres

2024

5A

Low



4

Edison Canal

River & Stream

4410.000000  / 
  • Malathion
    • A Source Unknown

2.1 Miles

2024

5A

Low

  • Permethrin
    • A Source Unknown

2.1 Miles

2024

5A

Low



4

Elderberry Forebay

Lake & Reservoir

4403.510000  /  18070102
  • Mercury
    • A Source Unknown

382 Acres

2014

5A

Low



4

Elizabeth Lake

Lake & Reservoir

4403.510000  /  18070102
  • Eutrophic
    • A Source Unknown

221 Acres

1996

5A

Low

  • Mercury
    • A Source Unknown

221 Acres

2014

5A

Low

  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

221 Acres

1998

5A

Low

  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

221 Acres

1996

5B


2008
  • pH
    • A Source Unknown

221 Acres

1996

5A

Low



4

Elizabeth Lake Canyon

River & Stream

4403.510000  /  18070102
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

Low



4

Ellsworth Barranca

River & Stream

4403.210000  /  18070103
  • Bifenthrin
    • A Source Unknown

11 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

11 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

11 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

11 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

11 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

11 Miles

2024

5B


2012
  • Permethrin
    • A Source Unknown

11 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

11 Miles

2024

5A

Low

  • Toxaphene
    • A Source Unknown

11 Miles

2014

5A

Low



4

Fox Barranca (tributary to Calleguas Creek Reach 6)

River & Stream

4408.220000  /  18070103
  • Bifenthrin
    • A Source Unknown

7 Miles

2014

5A

Low

  • Boron
    • Other

7 Miles

1998

5B


2008
  • Chlordane
    • A Source Unknown

7 Miles

2014

5B


2006
  • Chlorpyrifos
    • A Source Unknown

7 Miles

2014

5B


2006
  • Cypermethrin
    • A Source Unknown

7 Miles

2014

5A

Low

  • DDD (Dichlorodiphenyldichloroethane)
    • See TMDL documentation

7 Miles

2014

5B


2006
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

7 Miles

2014

5B


2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

7 Miles

2014

5B


2006
  • Malathion
    • A Source Unknown

7 Miles

2014

5A

Low

  • Nitrate and Nitrite
    • Nonpoint Source

7 Miles

1998

5B


2003
  • Nitrogen, Nitrate
    • See TMDL documentation

7 Miles

2014

5B


2003
  • Permethrin
    • A Source Unknown

7 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

7 Miles

2024

5A

Low

  • Sulfates
    • Other

7 Miles

1998

5B


2006
  • Total Dissolved Solids
    • Other

7 Miles

1998

5B


2006
  • Toxaphene
    • A Source Unknown

7 Miles

2014

5B


2006


4

Fox Canyon Barranca (tributary to San Antonio Creek)

River & Stream

4402.320002  /  18070101
  • Indicator Bacteria
    • A Source Unknown

4.1 Miles

2024

5A

Low



4

Honda Barranca

River & Stream

4408.210000  /  18070103
  • Bifenthrin
    • A Source Unknown

6 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

6 Miles

2014

5B


2006
  • Chlorpyrifos
    • See TMDL documentation

6 Miles

2014

5B


2006
  • Copper
    • A Source Unknown

6 Miles

2024

5B


2007
  • Cyfluthrin
    • A Source Unknown

6 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

6 Miles

2014

5A

Low

  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

6 Miles

2014

5B


2006
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

6 Miles

2014

5B


2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

6 Miles

2014

5B


2006
  • Fenpropathrin
    • A Source Unknown

6 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

6 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

6 Miles

2024

5A

Low

  • Toxaphene
    • A Source Unknown

6 Miles

2014

5B


2006


4

Hopper Creek

River & Stream

4403.410000  /  18070102
  • Sulfates
    • A Source Unknown

14 Miles

2002

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

14 Miles

2220

5A

Low



4

Hueneme Beach Park

Coastal & Bay Shoreline

4408.110000,4410.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

1.3 Miles

2010

5A

Low



4

Hueneme Drain

River & Stream

4410.000000  /  18070103
  • Escherichia coli (E. coli)
    • A Source Unknown

1.7 Miles

2014

5A

Low

  • Trash
    • A Source Unknown

1.7 Miles

2014

5C


2027


4

La Mirada Park Lake

Lake & Reservoir

4405.150000  / 
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3.3 Acres

2024

5A

Low

  • Mercury
    • A Source Unknown

3.3 Acres

2024

5A

Low



4

La Vista Drain (Ventura County)

River & Stream

4408.110000,4408.210000  /  18070103
  • Aluminum
    • A Source Unknown

2.2 Miles

2014

5A

Low

  • Fenpropathrin
    • A Source Unknown

2.2 Miles

2014

5A

Low



4

Lake Lindero

Lake & Reservoir

4404.230000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

14 Acres

1996

5B


2003
  • Chloride
    • A Source Unknown

14 Acres

1996

5A

Low

  • Eutrophic
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

14 Acres

1996

5B


2003
  • Odor
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

14 Acres

1996

5B


2003
  • Selenium
    • A Source Unknown

14 Acres

1996

5A

Low

  • Specific Conductivity
    • A Source Unknown

14 Acres

1996

5A

Low

  • Trash
    • A Source Unknown

14 Acres

1996

5B


2008


4

Lake Piru

Lake & Reservoir

4403.410000,4403.420000  /  18070102
  • Mercury
    • A Source Unknown

1203 Acres

2014

5A

Low

  • Temperature, water
    • A Source Unknown

1203 Acres

2024

5A

Low



4

Las Virgenes Creek

River & Stream

4404.210000,4404.220100,4404.220200  /  18070104
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2014

5B


2013
  • Indicator Bacteria
    • Nonpoint Source

12 Miles

2014

5B


2005
  • Invasive Species
    • A Source Unknown

12 Miles

2010

5A

Low

  • Nutrients (Algae)
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

12 Miles

1998

5B


2003
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

12 Miles

1996

5B


2003
  • Oxygen, Dissolved
    • See TMDL documentation

12 Miles

2014

5B


2013
  • Scum/Foam-unnatural
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

12 Miles

1996

5B


2003
  • Sedimentation/Siltation
    • A Source Unknown

12 Miles

2002

5B


2013
  • Selenium
    • A Source Unknown

12 Miles

1996

5A

Low

  • Sulfates
    • A Source Unknown

12 Miles

2028

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

12 Miles

2014

5B


2013
  • Trash
    • A Source Unknown

12 Miles

1996

5B


2008


4

Legg Lake

Lake & Reservoir

4412.310000  /  18070105
  • Ammonia
    • A Source Unknown

28 Acres

1996

5B


2012
  • Chlorophyll-a
    • A Source Unknown

28 Acres

2024

5B


2012
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

28 Acres

2014

5A

Low

  • Mercury
    • A Source Unknown

28 Acres

2014

5A

Low

  • Odor
    • A Source Unknown

28 Acres

1996

5B


2012
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

28 Acres

2014

5A

Low

  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

28 Acres

1996

5B


2008
  • pH
    • A Source Unknown

28 Acres

1996

5A

Low



4

Lincoln Park Lake

Lake & Reservoir

4412.100000  /  18070104
  • Ammonia
    • A Source Unknown

4.6 Acres

1996

5B


2012
  • Eutrophic
    • A Source Unknown

4.6 Acres

1996

5B


2012
  • Odor
    • A Source Unknown

4.6 Acres

1996

5B


2012
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

4.6 Acres

1998

5B


2012
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

4.6 Acres

2014

5A

Low

  • Trash
    • A Source Unknown

4.6 Acres

1996

5B


2012


4

Lindero Creek Reach 1

River & Stream

4404.230000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

3.2 Miles

1996

5B


2003
  • Benthic Community Effects
    • A Source Unknown

3.2 Miles

2014

5A

Low

  • Indicator Bacteria
    • Nonpoint Source

3.2 Miles

2014

5B


2006
  • Invasive Species
    • A Source Unknown

3.2 Miles

2010

5A

Low

  • Scum/Foam-unnatural
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

3.2 Miles

1996

5B


2003
  • Selenium
    • A Source Unknown

3.2 Miles

1996

5A

Low

  • Trash
    • A Source Unknown

3.2 Miles

1996

5B


2008


4

Lindero Creek Reach 2 (Above Lake)

River & Stream

4404.230000,4404.250000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

4.8 Miles

1998

5B


2003
  • Indicator Bacteria
    • A Source Unknown

4.8 Miles

2014

5B


2006
  • Scum/Foam-unnatural
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

4.8 Miles

1998

5B


2003
  • Selenium
    • A Source Unknown

4.8 Miles

1998

5A

Low

  • Trash
    • A Source Unknown

4.8 Miles

1998

5B


2008


4

Little Dalton Wash

River & Stream

4405.200000  / 
  • Copper
    • A Source Unknown

7 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7 Miles

2024

5A

Low

  • Lead
    • A Source Unknown

7 Miles

2024

5A

Low

  • Zinc
    • A Source Unknown

7 Miles

2024

5A

Low

  • alpha-Endosulfan (Endosulfan 1)
    • A Source Unknown

7 Miles

2024

5A

Low



4

Live Oak Wash

River & Stream

4405.520000, 4405.530000  / 
  • Copper
    • A Source Unknown

8.1 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

8.1 Miles

2024

5A

Low



4

Long Canyon (Ventura County)

River & Stream

4408.220000  /  18070103
  • Bifenthrin
    • A Source Unknown

6.6 Miles

2024

5A

Low

  • Chlordane
    • A Source Unknown

6.6 Miles

2024

5B


2006
  • Chlorpyrifos
    • A Source Unknown

6.6 Miles

2024

5A

Low

  • Cypermethrin
    • A Source Unknown

6.6 Miles

2024

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

6.6 Miles

2024

5B


2006
  • Fenpropathrin
    • A Source Unknown

6.6 Miles

2024

5A

Low

  • Pyrethroids
    • A Source Unknown

6.6 Miles

2024

5A

Low



4

Los Angeles - Long Beach Inner Harbor

Bay & Harbor

4405.150000,4411.010000,4411.020000,4411.030000,4411.040000,4412.100000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

4356 Acres

1998

5B


2012
  • Copper
    • See TMDL documentation

4356 Acres

1998

5B


2012
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

4356 Acres

2024

5B


2012
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

4356 Acres

2024

5B


2012
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

4356 Acres

1998

5B


2012
  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

4356 Acres

1998

5B


2012
  • Silver
    • A Source Unknown

4356 Acres

2024

5A

Low

  • Toxicity
    • A Source Unknown

4356 Acres

2014

5B


2012


4

Los Angeles Harbor - Consolidated Slip

Bay & Harbor

4411.010000,4411.020000,4411.040000  /  18070104
  • 2-Methylnaphthalene
    • A Source Unknown

36 Acres

1998

5B


2012
  • Benthic Community Effects
    • A Source Unknown

36 Acres

1998

5B


2012
  • Benzo(a)anthracene
    • A Source Unknown

36 Acres

1998

5B


2012
    This listing was made by USEPA for 2006.
  • Benzo(a)pyrene
    • A Source Unknown

36 Acres

1998

5B


2012
  • Cadmium
    • See TMDL documentation

36 Acres

1800

5B


2012
  • Cadmium (sediment)
    • A Source Unknown

36 Acres

2016

5B


2012
  • Chlordane
    • See TMDL documentation

36 Acres

1800

5B


2012
  • Chlordane (tissue & sediment)
    • A Source Unknown

36 Acres

2016

5B


2012
  • Chromium
    • A Source Unknown

36 Acres

2014

5B


2012
  • Chrysene (C1-C4)
    • A Source Unknown

36 Acres

1998

5B


2012
  • Copper
    • See TMDL documentation

36 Acres

1800

5B


2012
  • Copper (sediment)
    • A Source Unknown

36 Acres

2016

5B


2012
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

36 Acres

2024

5B


2012
  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

36 Acres

1800

5B


2012
  • DDT (tissue & sediment)
    • A Source Unknown

36 Acres

2016

5B


2012
  • Dieldrin
    • A Source Unknown

36 Acres

1998

5B


2012
  • Lead
    • See TMDL documentation

36 Acres

1800

5B


2012
  • Lead (sediment)
    • A Source Unknown

36 Acres

2016

5B


2012
  • Mercury
    • A Source Unknown

36 Acres

1998

5B


2012
  • Mercury (sediment)
    • A Source Unknown

36 Acres

2016

5B


2012
  • Oxygen, Dissolved
    • A Source Unknown

36 Acres

2024

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

36 Acres

1800

5B


2012
  • PCBs (Polychlorinated biphenyls) (tissue & sediment)
    • A Source Unknown

36 Acres

2016

5B


2012
  • Phenanthrene
    • A Source Unknown

36 Acres

1998

5B


2012
  • Pyrene
    • See TMDL documentation

36 Acres

1998

5B


2012
  • Toxaphene
    • See TMDL documentation

36 Acres

1800

5B


2012
  • Toxaphene (tissue)
    • A Source Unknown

36 Acres

2016

5B


2012
  • Toxicity
    • A Source Unknown

36 Acres

2014

5B


2012
  • Zinc
    • See TMDL documentation

36 Acres

1800

5B


2012
  • Zinc (sediment)
    • A Source Unknown

36 Acres

2016

5B


2012


4

Los Angeles River Estuary (Queensway Bay)

Estuary

4405.150000,4411.010000,4411.020000,4411.030000,4411.040000,4412.100000  /  18070104
  • Chlordane
    • A Source Unknown

300 Acres

1800

5B


2012
  • Copper
    • A Source Unknown

300 Acres

2014

5B


2012
  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

300 Acres

1800

5B


2012
  • DDT (sediment)
    • A Source Unknown

300 Acres

2016

5B


2012
  • Indicator Bacteria
    • A Source Unknown

300 Acres

2024

5B


2012
  • Oxygen, Dissolved
    • A Source Unknown

300 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

300 Acres

1800

5B


2012
  • PCBs (Polychlorinated biphenyls) (sediment)
    • A Source Unknown

300 Acres

2016

5A

Low

    Historical use of pesticides and lubricants.
  • Toxicity
    • A Source Unknown

300 Acres

2014

5B


2012
  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

300 Acres

2006

5B


2008
  • Zinc
    • A Source Unknown

300 Acres

2014

5B


2012


4

Los Angeles River Reach 1 (Estuary to Carson Street)

River & Stream

4412.100000  /  18070104
  • Aluminum
    • A Source Unknown

3.4 Miles

2028

5A

Low

  • Ammonia
    • Nonpoint Source
    • Point Source

3.4 Miles

2002

5B


2004
  • Bifenthrin
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Copper
    • See TMDL documentation

3.4 Miles

1800

5B


2012
  • Copper, Dissolved
    • Nonpoint Source
    • Point Source

3.4 Miles

2016

5B


2005
  • Cyanide
    • A Source Unknown

3.4 Miles

2006

5A

Low

  • Cyfluthrin
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Cypermethrin
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Deltamethrin
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Fipronil
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Imidacloprid
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Indicator Bacteria
    • See TMDL documentation

3.4 Miles

2014

5B


2012
  • Iron
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Lead
    • Nonpoint Source
    • Point Source

3.4 Miles

1996

5B


2005
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

3.4 Miles

1998

5B


2004
  • Oil and Grease
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Permethrin
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Profenofos
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Pyrethroids
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

3.4 Miles

2014

5A

Low

  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

3.4 Miles

2006

5B


2008
  • Zinc
    • See TMDL documentation

3.4 Miles

1800

5B


2011
  • Zinc, Dissolved
    • Nonpoint Source
    • Point Source

3.4 Miles

2016

5B


2005
  • pH
    • A Source Unknown
    • Nonpoint Source
    • Point Source

3.4 Miles

1996

5A

Low



4

Los Angeles River Reach 2 (Carson to Figueroa Street)

River & Stream

4412.100000  /  18070104
  • Ammonia
    • Nonpoint Source
    • Point Source

19 Miles

1996

5B


2004
  • Copper
    • A Source Unknown

19 Miles

2006

5B


2005
  • Indicator Bacteria
    • See TMDL documentation

19 Miles

2014

5B


2012
  • Lead
    • Nonpoint Source
    • Point Source

19 Miles

1996

5B


2005
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

19 Miles

1996

5B


2004
  • Oil
    • Natural Sources

19 Miles

1996

5A

Low

  • Oil and Grease
    • A Source Unknown

19 Miles

2024

5A

Low

  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

19 Miles

1996

5B


2008
  • Zinc
    • A Source Unknown

19 Miles

2024

5B


2008


4

Los Angeles River Reach 3 (Figueroa St. to Riverside Dr.)

River & Stream

4412.100000,4412.210000  /  18070104
  • Copper
    • A Source Unknown

7.9 Miles

2006

5B


2008
  • Indicator Bacteria
    • A Source Unknown

7.9 Miles

2014

5B


2012
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

7.9 Miles

1996

5B


2004
  • Toxicity
    • A Source Unknown

7.9 Miles

2014

5A

Low

  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

7.9 Miles

1996

5B


2008


4

Los Angeles River Reach 4 (Sepulveda Dr. to Sepulveda Dam)

River & Stream

4412.210000  /  18070105
  • Indicator Bacteria
    • See TMDL documentation

11 Miles

2014

5B


2012
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

11 Miles

1996

5B


2004
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low

  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

11 Miles

1996

5B


2008


4

Los Angeles River Reach 5 ( within Sepulveda Basin)

River & Stream

4412.210000  /  18070105
  • Benthic Community Effects
    • A Source Unknown

1.9 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

1.9 Miles

2006

5B


2005
  • Lead
    • A Source Unknown

1.9 Miles

2006

5B


2005
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

1.9 Miles

1996

5B


2004
  • Oil
    • A Source Unknown

1.9 Miles

1996

5A

Low

  • Selenium
    • See TMDL documentation

1.9 Miles

2024

5B


2008
  • Toxicity
    • A Source Unknown

1.9 Miles

2014

5A

Low

  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

1.9 Miles

1996

5B


2008


4

Los Angeles River Reach 6 (Above Sepulveda Flood Control Basin)

River & Stream

4412.210000  /  18070105
  • Chlordane
    • A Source Unknown

7 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

7 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

7 Miles

2014

5B


2008
  • Indicator Bacteria
    • See TMDL documentation

7 Miles

2014

5B


2012
  • Selenium
    • A Source Unknown

7 Miles

1992

5B


2005
  • Sulfates
    • A Source Unknown

7 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

7 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

7 Miles

2014

5A

Low

  • Zinc
    • Major Municipal Point Source-dry weather discharge
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

7 Miles

2014

5B


2008


4

Los Cerritos Channel

Wetland, Tidal

40515010  /  18070104
  • Ammonia
    • A Source Unknown

30 Acres

2002

5A

Low

  • Bis(2ethylhexyl)phthalate (DEHP)
    • A Source Unknown

30 Acres

2006

5A

Low

  • Copper
    • A Source Unknown

30 Acres

2002

5A

Low

  • Indicator Bacteria
    • Agriculture-irrigation tailwater
    • Construction/Land Development
    • Golf course activities
    • Minor Industrial Point Source
    • Minor Municipal Point Source-dry and/or wet weather discharge
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

30 Acres

2014

5B


2024
  • Lead
    • A Source Unknown

30 Acres

2002

5A

Low

  • Trash
    • A Source Unknown

30 Acres

2006

5A

Low

  • Zinc
    • A Source Unknown

30 Acres

2002

5A

Low

  • pH
    • A Source Unknown

30 Acres

2028

5A

Low



4

Los Coyotes Channel

River & Stream

4405.150000  / 
  • Copper
    • A Source Unknown

1.7 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

1.7 Miles

2024

5B


2022
  • Oil and Grease
    • A Source Unknown

1.7 Miles

2024

5A

Low



4

Machado Lake (Harbor Park Lake)

Lake & Reservoir

4411.020000  /  18070104
  • Algae
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

48 Acres

1996

5B


2009
  • Ammonia
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

48 Acres

1996

5B


2009
  • ChemA
    • A Source Unknown

48 Acres

2014

5B


2012
  • Chlordane
    • See TMDL documentation

48 Acres

1800

5B


2012
  • Chlordane (tissue)
    • A Source Unknown

48 Acres

2016

5B


2012
  • Chlorophyll-a
    • A Source Unknown

48 Acres

2024

5B


2009
  • DDT (tissue)
    • A Source Unknown

48 Acres

2016

5B


2012
    Fish Consumption Advisory.
  • Dieldrin (tissue)
    • A Source Unknown

48 Acres

2016

5B


2012
  • Eutrophic
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

48 Acres

1992

5B


2009
  • Odor
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

48 Acres

1996

5B


2009
  • PCBs (Polychlorinated biphenyls) (tissue)
    • Other

48 Acres

2016

5A

Low

  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

48 Acres

1996

5B


2008


4

Malibou Lake

Lake & Reservoir

4404.240000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

42 Acres

1996

5B


2003
  • Dieldrin
    • A Source Unknown

42 Acres

2014

5A

Low

  • Eutrophic
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

42 Acres

1996

5B


2003
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

42 Acres

1998

5B


2003


4

Malibu Creek

River & Stream

4404.210000,4404.240000  /  18070104
  • Aluminum
    • A Source Unknown

10 Miles

2028

5A

Low

  • Benthic Community Effects
    • A Source Unknown

10 Miles

2014

5B


2013
  • Cyanide
    • A Source Unknown

10 Miles

2014

5A

Low

  • Fish Barriers (Fish Passage)
    • A Source Unknown

10 Miles

1996

5A

Low

  • Indicator Bacteria
    • Natural Sources
    • Nonpoint Source
    • Point Source

10 Miles

2014

5B


2006
  • Invasive Species
    • A Source Unknown

10 Miles

2010

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

10 Miles

2024

5A

Low

  • Nutrients (Algae)
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Nonpoint Source
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

10 Miles

1996

5B


2003
  • Oxygen, Dissolved
    • A Source Unknown

10 Miles

2014

5A

Low

  • Scum/Foam-unnatural
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

10 Miles

1996

5B


2003
  • Sedimentation/Siltation
    • A Source Unknown

10 Miles

2002

5B


2013
  • Selenium
    • A Source Unknown

10 Miles

2006

5A

Low

  • Sulfates
    • A Source Unknown

10 Miles

2006

5A

Low

  • Toxicity
    • A Source Unknown

10 Miles

2010

5A

Low

  • Trash
    • Nonpoint Source

10 Miles

1996

5B


2009


4

Malibu Lagoon

Estuary

4404.160000,4404.210000,4404.310000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

25 Acres

1998

5B


2013
  • Eutrophic
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

25 Acres

1998

5B


2003
  • Indicator Bacteria
    • Nonpoint Source
    • Point Source

25 Acres

2014

5B


2006
  • Swimming Restrictions
    • Agriculture-animal
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Spills
    • Surface Runoff
    • Urban Runoff/Storm Sewers

25 Acres

1998

5B


2006
  • Viruses (enteric)
    • Agriculture-animal
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Spills
    • Surface Runoff
    • Urban Runoff/Storm Sewers

25 Acres

1998

5B


2006
  • pH
    • A Source Unknown

25 Acres

2002

5A

Low

    Possible sources might be septic systems, storm drains, and birds.


4

Marina del Rey Harbor

Bay & Harbor

4404.610000,4404.640000  /  18070104
  • Chlordane
    • Nonpoint Source
    • See TMDL documentation

53 Acres

1800

5B


2006
  • Copper
    • A Source Unknown

53 Acres

1800

5B


2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

53 Acres

1800

5B


2015
  • Dieldrin
    • A Source Unknown

53 Acres

1800

5B


2006
    A USEPA-approved TMDL has made a finding of non-impairment for this pollutant.
  • Indicator Bacteria
    • Nonpoint Source

53 Acres

2006

5B


2004
  • Lead
    • Nonpoint Source

53 Acres

1800

5B


2006
  • Oxygen, Dissolved
    • A Source Unknown

53 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • Nonpoint Source
    • See TMDL documentation

53 Acres

1800

5B


2006
    Historical use of pesticides, storm water runoff/aerial deposition from urban areas. Shellfish harvesting advisory for PCBs in tissue.
  • Toxicity
    • Nonpoint Source

53 Acres

2014

5B


2005
  • Zinc
    • Nonpoint Source

53 Acres

1800

5B


2006
  • alpha-Endosulfan (Endosulfan 1)
    • A Source Unknown

53 Acres

2024

5A

Low



4

Matilija Creek Reach 2 (Above Reservoir)

River & Stream

4402.200101,4402.200102,4402.200105  /  18070101
  • Fish Barriers (Fish Passage)
    • A Source Unknown

16 Miles

1996

5A

Low

  • Temperature, water
    • A Source Unknown

16 Miles

2014

5A

Low



4

McGrath Lake

Lake & Reservoir

40311000  /  18070103
  • Chlordane
    • A Source Unknown

19 Acres

2014

5B


2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

19 Acres

2014

5B


2011
  • Dieldrin (sediment)
    • A Source Unknown

19 Acres

2016

5A

High

    Historical use of pesticides and lubricants, storm water runoff/aerial deposition from agricultural fields.
  • Indicator Bacteria
    • A Source Unknown

19 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls) (sediment)
    • A Source Unknown

19 Acres

2016

5A

Low

    Historical use of pesticides and lubricants, storm water runoff/aerial deposition from agricultural fields.
  • Toxicity
    • A Source Unknown

19 Acres

2014

5B


2011


4

Medea Creek Reach 1 (Lake to Confl. with Lindero)

River & Stream

4404.230000,4404.240000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

2.7 Miles

1996

5B


2003
  • Benthic Community Effects
    • A Source Unknown

2.7 Miles

2014

5B


2013
  • Indicator Bacteria
    • Nonpoint Source

2.7 Miles

2014

5B


2006
  • Sedimentation/Siltation
    • A Source Unknown

2.7 Miles

2002

5B


2013
  • Selenium
    • A Source Unknown

2.7 Miles

1996

5A

Low

  • Trash
    • A Source Unknown

2.7 Miles

1996

5B


2008


4

Medea Creek Reach 2 (Abv Confl. with Lindero)

River & Stream

4404.230000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

5.5 Miles

1996

5B


2003
  • Benthic Community Effects
    • A Source Unknown

5.5 Miles

2014

5B


2013
  • Cadmium
    • A Source Unknown

5.5 Miles

2014

5A

Low

  • Indicator Bacteria
    • Nonpoint Source

5.5 Miles

2014

5B


2006
  • Invasive Species
    • A Source Unknown

5.5 Miles

2010

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

5.5 Miles

2002

5B


2013
  • Selenium
    • A Source Unknown

5.5 Miles

1996

5A

Low

  • Sulfates
    • A Source Unknown

5.5 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

5.5 Miles

2014

5B


2013
  • Toxicity
    • A Source Unknown

5.5 Miles

2014

5A

Low

  • Trash
    • A Source Unknown

5.5 Miles

1996

5B


2008


4

Munz Lake

Lake & Reservoir

4403.510000  /  18070102
  • Eutrophic
    • A Source Unknown

8.6 Acres

1996

5A

Low

  • Trash
    • Agriculture-storm runoff
    • Nonpoint Source
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

8.6 Acres

1996

5B


2008


4

Ormond Beach

Coastal & Bay Shoreline

4408.110000,4410.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

3.1 Miles

2002

5A

Low



4

Ormond Beach Wetlands

Wetland, Tidal

4410.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

23 Acres

2014

5A

Low

  • Trash
    • A Source Unknown

23 Acres

2014

5C


2027
  • pH
    • A Source Unknown

23 Acres

2014

5A

Low



4

Oxford Retention Basin (Los Angeles County)

Lake & Reservoir

4404.610000  / 
  • Copper
    • A Source Unknown

3.1 Acres

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

3.1 Acres

2024

5A

Low

  • Zinc
    • A Source Unknown

3.1 Acres

2024

5A

Low



4

Oxnard Drain

River & Stream

40311000  /  18070103
  • Escherichia coli (E. coli)
    • A Source Unknown

4 Miles

2014

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

4 Miles

2014

5A

Low

  • Trash
    • A Source Unknown

4 Miles

2014

5C


2027
  • pH
    • A Source Unknown

4 Miles

2014

5A

Low



4

Peck Road Park Lake

Lake & Reservoir

4412.310000  /  18070105
  • Chlordane (tissue)
    • A Source Unknown

80 Acres

1996

5B


2012
  • DDT (tissue)
    • A Source Unknown

80 Acres

1996

5B


2012
  • Mercury
    • A Source Unknown

80 Acres

2014

5A

Low

  • Odor
    • A Source Unknown

80 Acres

1996

5B


2012
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

80 Acres

1996

5B


2012
  • Trash
    • A Source Unknown

80 Acres

1996

5B


2012


4

Peninsula Beach

Coastal & Bay Shoreline

4407.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

0.19 Miles

2002

5A

Low



4

Piru Creek (Santa Clara River Reach 4A to Santa Paula Water Works Diversion Dam)

River & Stream

4403.410000  /  18070102
  • Boron
    • A Source Unknown

5.9 Miles

2006

5A

Low

  • Specific Conductance
    • A Source Unknown

5.9 Miles

2010

5A

Low

  • Specific Conductivity
    • A Source Unknown

5.9 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

5.9 Miles

2006

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

5.9 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

5.9 Miles

2014

5A

Low



4

Point Mugu Beach

Coastal & Bay Shoreline

4408.110000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

0.39 Miles

2010

5A

Low



4

Pole Creek (trib to Santa Clara River Reach 3 )

River & Stream

4403.310000  /  18070102
  • Sulfates
    • A Source Unknown

9.5 Miles

2002

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

9.5 Miles

2002

5A

Low



4

Port Hueneme Harbor (Back Basins)

Bay & Harbor

4408.110000,4410.000000  /  18070103
  • Arsenic
    • A Source Unknown

95 Acres

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

95 Acres

2014

5C


2019
  • Dieldrin
    • A Source Unknown

95 Acres

2014

5A

Low

  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

95 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

95 Acres

2014

5C


2019


4

Port Hueneme Pier

Coastal & Bay Shoreline

4408.110000,4410.000000  /  18070103
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.4 Miles

2006

5A

Low



4

Potrero Canyon Creek

River & Stream

4404.250000  /  18070104
  • Oxygen, Dissolved
    • A Source Unknown

0.97 Miles

2014

5A

Low



4

Puddingstone Reservoir

Lake & Reservoir

4405.520000  /  18070106
  • Chlordane
    • A Source Unknown

244 Acres

2014

5B


2012
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

244 Acres

2014

5B


2012
  • Mercury
    • A Source Unknown

244 Acres

2014

5B


2012
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

244 Acres

1996

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

244 Acres

2014

5B


2012


4

Puente Creek

River & Stream

4405.200000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

5.8 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

5.8 Miles

2010

5A

Low



4

Pyramid Lake

Lake & Reservoir

4403.420000  /  18070102
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1177 Acres

2014

5A

Low

  • Dieldrin
    • A Source Unknown

1177 Acres

2014

5A

Low

  • Mercury
    • A Source Unknown

1177 Acres

2010

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1177 Acres

2014

5A

Low

  • Sodium
    • A Source Unknown

1177 Acres

2024

5A

Low

  • Temperature, water
    • A Source Unknown

1177 Acres

2024

5A

Low

  • pH
    • A Source Unknown

1177 Acres

2024

5A

Low



4

Rincon Beach

Coastal & Bay Shoreline

 /  18070101
  • Indicator Bacteria
    • Onsite Wastewater Systems (Septic Tanks)

0.38 Miles

2002

5A

Low



4

Rincon Parkway Beach

Coastal & Bay Shoreline

4401.000001,4401.000002,4402.100001,4402.200302  /  18070101
  • Indicator Bacteria
    • A Source Unknown

0.44 Miles

2014

5A

Low



4

Rio De Santa Clara/Oxnard Drain No. 3

River & Stream

4408.110000  /  18070103
  • Ammonia
    • A Source Unknown

1.9 Miles

2014

5A

Low

  • ChemA (tissue)
    • A Source Unknown

1.9 Miles

1996

5B


2011
  • Chlordane
    • See TMDL documentation

1.9 Miles

1800

5B


2011
  • Chlordane (tissue)
    • A Source Unknown

1.9 Miles

2016

5B


2011
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

1.9 Miles

2014

5B


2011
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

1.9 Miles

2014

5B


2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1.9 Miles

1800

5B


2011
  • DDT (tissue)
    • A Source Unknown

1.9 Miles

2016

5B


2011
  • Indicator Bacteria
    • A Source Unknown

1.9 Miles

2024

5A

Low

  • Nitrogen
    • Major Municipal Point Source-dry and/or wet weather discharge

1.9 Miles

1996

5B


2003
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown
    • Inappropriate Waste Disposal/Wildcat Dumping

1.9 Miles

2014

5B


2011
  • Toxaphene
    • See TMDL documentation

1.9 Miles

1800

5B


2011
  • Toxaphene (tissue)
    • A Source Unknown

1.9 Miles

2016

5A

Low

  • Toxicity
    • A Source Unknown

1.9 Miles

2014

5B


2011


4

Rio Hondo Reach 1 (Confl. LA River to Snt Ana Fwy)

River & Stream

4412.100000  /  18070104
  • Copper
    • Nonpoint Source
    • Point Source

4.5 Miles

1996

5B


2005
  • Indicator Bacteria
    • A Source Unknown

4.5 Miles

2014

5B


2012
  • Lead
    • Nonpoint Source
    • Point Source

4.5 Miles

1996

5B


2005
  • Oil and Grease
    • A Source Unknown

4.5 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

4.5 Miles

2010

5A

Low

  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

4.5 Miles

1996

5B


2008
  • Zinc
    • Nonpoint Source
    • Point Source

4.5 Miles

1996

5B


2005
  • pH
    • Nonpoint Source
    • Point Source

4.5 Miles

1996

5B


2004


4

Rio Hondo Reach 2 (At Spreading Grounds)

River & Stream

4412.100000  /  18070104
  • Coliform Bacteria
    • A Source Unknown

2.9 Miles

2016

5B


2012
  • Cyanide
    • A Source Unknown

2.9 Miles

2010

5A

Low



4

Rio Hondo Reach 3 (above Spreading Grounds)

River & Stream

4412.310000  /  18070104
  • Copper
    • A Source Unknown

8.1 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

8.1 Miles

2014

5B


2012
  • Iron
    • A Source Unknown

8.1 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

8.1 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

8.1 Miles

2014

5A

Low



4

San Antonio Creek (Tributary to Ventura River Reach 4)

River & Stream

4402.200202,4402.200203,4402.320001,4402.320002,4402.320003  /  18070101
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

9.9 Miles

2014

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

9.9 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

9.9 Miles

2014

5A

Low

  • Fenpropathrin
    • A Source Unknown

9.9 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

9.9 Miles

2002

5B


2013
  • Oxygen, Dissolved
    • A Source Unknown

9.9 Miles

2014

5B


2013
  • Specific Conductivity
    • A Source Unknown

9.9 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

9.9 Miles

2010

5A

Low



4

San Buenaventura Beach

Coastal & Bay Shoreline

4407.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

2.6 Miles

1800

5A

Low



4

San Dimas Wash (Los Angeles County)

River & Stream

4405.200000, 4405.440000  / 
  • Copper
    • A Source Unknown

11 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

11 Miles

2024

5B


2016
  • Zinc
    • A Source Unknown

11 Miles

2024

5A

Low



4

San Francisquito Canyon I

River & Stream

4403.510000  / 
  • Manganese
    • A Source Unknown

22 Miles

2024

5A

Low



4

San Gabriel River Estuary

River & Stream

4405.150000  /  18070104
  • Chlordane
    • A Source Unknown

3.4 Miles

2014

5A

Low

  • Chlorine
    • A Source Unknown

3.4 Miles

2024

5A

Low

  • Copper
    • A Source Unknown

3.4 Miles

1996

5B


2007
  • Dioxin
    • A Source Unknown

3.4 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5B


2016
  • Nickel
    • A Source Unknown

3.4 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

3.4 Miles

2010

5A

Low



4

San Gabriel River Reach 1 (Estuary to Firestone)

River & Stream

4405.150000  /  18070104
  • Indicator Bacteria
    • See TMDL documentation

6.3 Miles

2014

5B


2016
  • Oil and Grease
    • A Source Unknown

6.3 Miles

2024

5A

Low

  • pH
    • A Source Unknown

6.3 Miles

1996

5A

Low



4

San Gabriel River Reach 2 (Firestone to Whittier Narrows Dam

River & Stream

4405.150000  /  18070104
  • Aluminum
    • A Source Unknown

11 Miles

2028

5A

Low

  • Cyanide
    • A Source Unknown

11 Miles

2010

5A

Low

  • Indicator Bacteria
    • See TMDL documentation

11 Miles

2014

5B


2016


4

San Gabriel River Reach 3 (Whittier Narrows to Ramona)

River & Stream

4405.150000,4405.200000  /  18070104
  • Chlorine
    • A Source Unknown

6.1 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

6.1 Miles

2010

5B


2016


4

San Gabriel River, East Fork

River & Stream

4405.430000,4405.430000  /  18070106
  • Benthic Community Effects
    • A Source Unknown

6.3 Miles

2014

5A

Low

  • Trash
    • Nonpoint Source

6.3 Miles

1996

5B


2000


4

San Jose Creek Reach 1 (SG Confluence to Temple St.)

River & Stream

4405.200000,4405.200000,4405.510000,4405.510000  /  18070105
  • Chlorine
    • A Source Unknown

14 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

14 Miles

2014

5B


2016
  • Total Dissolved Solids
    • A Source Unknown

14 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

14 Miles

1996

5A

Low

  • pH
    • A Source Unknown

14 Miles

2010

5A

Low



4

Sanjon Barranca Creek

River & Stream

4407.000000  /  18070101
  • Escherichia coli (E. coli)
    • A Source Unknown

0.6 Miles

2014

5A

Low

  • Trash
    • A Source Unknown

0.6 Miles

2014

5C


2027


4

Santa Anita Wash (Peck Road Park to Elkins Ave.)

River & Stream

4412.310000  / 
  • Indicator Bacteria
    • A Source Unknown

5 Miles

2024

5B


2012
  • Lead
    • A Source Unknown

5 Miles

2024

5A

Low



4

Santa Clara River Estuary

Estuary

4403.100000,4407.000000,4410.000000  /  18070103
  • Ammonia
    • A Source Unknown

100 Acres

2014

5A

Low

  • ChemA
    • A Source Unknown

100 Acres

1998

5B


2011
  • Chlorine
    • A Source Unknown

100 Acres

2024

5A

Low

  • Copper
    • A Source Unknown

100 Acres

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

100 Acres

2014

5B


2012
  • Nickel
    • A Source Unknown

100 Acres

2024

5A

Low

  • Toxaphene
    • A Source Unknown

100 Acres

1998

5B


2011
  • Toxicity
    • A Source Unknown

100 Acres

2010

5A

Low

  • pH
    • A Source Unknown

100 Acres

2014

5A

Low



4

Santa Clara River Reach 1 (Estuary to Hwy 101 Bridge)

River & Stream

4403.100000,4403.100000  /  18070103
  • Oxygen, Dissolved
    • A Source Unknown

3.6 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

3.6 Miles

2006

5A

Low

  • Trash
    • A Source Unknown

3.6 Miles

2014

5C


2027
  • pH
    • A Source Unknown

3.6 Miles

2014

5A

Low



4

Santa Clara River Reach 3 (Freeman Diversion to A Street)

River & Stream

4403.210000,4403.310000  /  18070103
  • Aluminum
    • A Source Unknown

12 Miles

2014

5A

Low

  • Chloride
    • Nonpoint Source
    • Point Source

12 Miles

2002

5B


2010
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5B


2012
  • Selenium
    • A Source Unknown

12 Miles

2014

5A

Low

  • Sodium Adsorption Ratio (SAR)
    • A Source Unknown

12 Miles

2024

5A

Low

  • Sulfates
    • A Source Unknown

12 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

12 Miles

2002

5A

Low

  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

Low

  • Trash
    • A Source Unknown

12 Miles

2014

5C


2027
  • Turbidity
    • A Source Unknown

12 Miles

2024

5A

Low



4

Santa Clara River Reach 5 (Blue Cut gaging station to West Pier Hwy 99 Bridge) (was named Santa Clara River Reach 7 on 2002 303(d) list)

River & Stream

4403.410000,4403.510000  /  18070102
  • Aluminum
    • A Source Unknown

8.7 Miles

2028

5A

Low

  • Benthic Community Effects
    • A Source Unknown

8.7 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

8.7 Miles

2014

5A

Low

  • Chloride
    • Nonpoint Source
    • Point Source

8.7 Miles

2006

5B


2005
  • Chlorine
    • A Source Unknown

8.7 Miles

2024

5A

Low

  • Cyanide
    • A Source Unknown

8.7 Miles

2024

5A

Low

  • Cyfluthrin
    • A Source Unknown

8.7 Miles

2024

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

8.7 Miles

2014

5A

Low

  • Fipronil
    • A Source Unknown

8.7 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

8.7 Miles

2014

5B


2012
  • Iron
    • A Source Unknown

8.7 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

8.7 Miles

2024

5A

Low

  • Trash
    • A Source Unknown

8.7 Miles

2014

5C


2027


4

Santa Clara River Reach 6 (W Pier Hwy 99 to Bouquet Cyn Rd) (was named Santa Clara River Reach 8 on 2002 303(d) list)

River & Stream

4403.510000  /  18070102
  • Benthic Community Effects
    • A Source Unknown

3.6 Miles

2014

5A

Low

  • Chloride
    • Nonpoint Source
    • Point Source

3.6 Miles

1998

5B


2005
    Chloride was relisted by USEPA in 2002.
  • Chlorpyrifos
    • A Source Unknown

3.6 Miles

2006

5A

Low

  • Toxicity
    • A Source Unknown

3.6 Miles

2006

5A

Low



4

Santa Clara River Reach 10 (above Little Sespe Creek)

River & Stream

4403.320100,4403.320200  /  18070102
  • Chloride
    • A Source Unknown

55 Miles

2006

5A

Low

  • Specific Conductivity
    • A Source Unknown

55 Miles

2014

5A

Low

  • Temperature, water
    • A Source Unknown

55 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

55 Miles

2014

5A

Low

  • pH
    • A Source Unknown

55 Miles

2006

5A

Low



4

Santa Clara River Reach 11 (above Santa Felicia Dam)

River & Stream

4403.420000  /  18070102
  • Benthic Community Effects
    • A Source Unknown

58 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

58 Miles

2006

5A

Low

  • Specific Conductivity
    • A Source Unknown

58 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

58 Miles

2014

5A

Low

  • Temperature, water
    • A Source Unknown

58 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

58 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

58 Miles

2014

5A

Low



4

Santa Fe Dam Park Lake

Lake & Reservoir

4405.200000  /  18070105
  • Mercury
    • A Source Unknown

19 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

19 Acres

2014

5A

Low

  • pH
    • A Source Unknown

19 Acres

1996

5B


2012


4

Santa Monica Bay Offshore/Nearshore

Bay & Harbor

4404.110000,4404.110000,4404.110000,4404.110000,4404.110000,4404.110000,4404.110000,4404.110000,4404.110000,4404.110000,(Total Count: 381)  /  18070104
  • Arsenic
    • A Source Unknown

19855 Acres

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

19855 Acres

2014

5B


2012
  • Mercury
    • A Source Unknown

19855 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

19855 Acres

1800

5B


2012
  • Trash
    • A Source Unknown

19855 Acres

2014

5B


2012


4

Santa Monica Canyon

River & Stream

4404.500000  /  18070104
  • Indicator Bacteria
    • Nonpoint Source

3 Miles

1996

5B


2003
  • Lead
    • A Source Unknown

3 Miles

1996

5A

Low



4

Sawpit Creek

River & Stream

4412.310000  /  18070105
  • Bis(2ethylhexyl)phthalate (DEHP)
    • A Source Unknown

5.1 Miles

2006

5A

Low

  • Chlordane
    • A Source Unknown

5.1 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

5.1 Miles

2014

5B


2012
  • Lead
    • A Source Unknown

5.1 Miles

2024

5A

Low



4

South San Jose Creek (Los Angeles County)

River & Stream

4405.200000,4405.510000  /  18070106
  • Toxicity
    • A Source Unknown

3.3 Miles

2014

5A

Low



4

Spring Street Channel

River & Stream

4405.150000  / 
  • Copper
    • A Source Unknown

2.3 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

2.3 Miles

2024

5A

Low

  • Zinc
    • A Source Unknown

2.3 Miles

2024

5A

Low



4

Surfers Point at Seaside

Coastal & Bay Shoreline

4402.100001,4407.000000  /  18070101
  • Indicator Bacteria
    • A Source Unknown

0.38 Miles

2002

5A

Low



4

Tapo Canyon

River & Stream

4403.410000  /  18070103
  • Bifenthrin
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

4.1 Miles

2014

5B


2006
  • Chloride
    • A Source Unknown

4.1 Miles

2014

5B


2008
  • Cypermethrin
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Fenpropathrin
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

4.1 Miles

2024

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Permethrin
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

4.1 Miles

2024

5A

Low

  • Sulfates
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

4.1 Miles

2014

5A

Low



4

Thacher Creek

River & Stream

40232011  /  18070101
  • Chlorpyrifos
    • A Source Unknown

2.2 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

2.2 Miles

2024

5A

Low

  • Cypermethrin
    • A Source Unknown

2.2 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2.2 Miles

2014

5A

Low

  • Fenpropathrin
    • A Source Unknown

2.2 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

2.2 Miles

2024

5A

Low



4

Timber Canyon

River & Stream

4403.310000  /  18070102
  • Bifenthrin
    • A Source Unknown

6.1 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

6.1 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

6.1 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

6.1 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

6.1 Miles

2014

5A

Low

  • Fenpropathrin
    • A Source Unknown

6.1 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

6.1 Miles

2024

5A

Low



4

Topanga Canyon Creek

River & Stream

4404.110000  /  18070104
  • Lead
    • A Source Unknown

8.8 Miles

1996

5A

Low

  • Toxicity
    • A Source Unknown

8.8 Miles

2014

5A

Low



4

Torrance Carson Channel

River & Stream

4411.010000  /  18070104
  • Copper
    • A Source Unknown

3.4 Miles

1996

5B


2012
  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5A

Low

  • Lead
    • A Source Unknown

3.4 Miles

1996

5B


2012


4

Triunfo Canyon Creek Reach 1

River & Stream

4404.240000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

2.6 Miles

2014

5B


2013
  • Indicator Bacteria
    • See TMDL documentation

2.6 Miles

2024

5B


2006
  • Lead
    • A Source Unknown

2.6 Miles

1996

5A

Low

  • Mercury
    • A Source Unknown

2.6 Miles

1996

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

2.6 Miles

2002

5A

Low

  • Selenium
    • A Source Unknown

2.6 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

2.6 Miles

2014

5A

Low



4

Triunfo Canyon Creek Reach 2

River & Stream

4404.240000,4404.250000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

3.6 Miles

2014

5B


2013
  • Lead
    • A Source Unknown

3.6 Miles

1996

5A

Low

  • Mercury
    • A Source Unknown

3.6 Miles

1996

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

3.6 Miles

2002

5A

Low



4

Unnamed tributary of Bouquet Canyon Creek (Los Angeles County)

River & Stream

4403.510000  / 
  • Bifenthrin
    • A Source Unknown

4.3 Miles

2024

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

4.3 Miles

2024

5A

Low

  • Pyrethroids
    • A Source Unknown

4.3 Miles

2024

5A

Low



4

Unnamed tributary to Medea Creek Reach 2 (Ventura County)

River & Stream

4404.230000  / 
  • Oxygen, Dissolved
    • A Source Unknown

1.8 Miles

2024

5A

Low



4

Ventura Harbor Ventura Keys

Bay & Harbor

4402.100001,4403.100000,4407.000000,4410.000000  /  18070103
  • Arsenic
    • A Source Unknown

262 Acres

2014

5A

Low

  • Coliform Bacteria
    • A Source Unknown

262 Acres

1996

5A

Low

  • Dieldrin
    • A Source Unknown

262 Acres

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

262 Acres

2014

5A

Low



4

Ventura Marina Jetties

Coastal & Bay Shoreline

4402.100001,4403.100000,4407.000000,4410.000000  /  18070103
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

0.84 Miles

2006

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.84 Miles

2006

5A

Low



4

Ventura River Reach 1 and 2 (Estuary to Weldon Canyon)

River & Stream

4402.100001  /  18070101
  • Algae
    • A Source Unknown

4.5 Miles

1996

5A

High

  • Benthic Community Effects
    • A Source Unknown

4.5 Miles

2014

5A

Low

  • Selenium
    • A Source Unknown

4.5 Miles

2014

5A

Low

  • Temperature, water
    • A Source Unknown

4.5 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

4.5 Miles

2014

5A

Low



4

Ventura River Reach 3 (Weldon Canyon to Confl. w/ Coyote Cr)

River & Stream

4402.100001,4402.200202  /  18070101
  • Chloride
    • A Source Unknown

2.8 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

2.8 Miles

2010

5A

Low

  • Iron
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

2.8 Miles

2014

5B


2013
  • Sodium Adsorption Ratio (SAR)
    • A Source Unknown

2.8 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

2.8 Miles

2014

5A

Low



4

Ventura River Reach 4 (Coyote Creek to Camino Cielo Rd)

River & Stream

40220021  /  18070101
  • Temperature, water
    • A Source Unknown

0.23 Miles

2014

5A

Low



4

Walnut Creek Wash (Drains from Puddingstone Res)

River & Stream

4405.200000  /  18070106
  • Benthic Community Effects
    • A Source Unknown

14 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

14 Miles

2014

5B


2007
  • Indicator Bacteria
    • A Source Unknown

14 Miles

2010

5B


2006
  • pH
    • A Source Unknown

14 Miles

1996

5A

Low



4

Westlake Lake

Lake & Reservoir

4404.240000,4404.250000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

132 Acres

1996

5B


2003
  • Ammonia
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

132 Acres

1996

5B


2003
  • Eutrophic
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

132 Acres

1996

5B


2003
  • Lead
    • A Source Unknown

132 Acres

1996

5A

Low

  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

132 Acres

1996

5B


2003


4

Wheeler Canyon/Todd Barranca

River & Stream

4403.210000  /  18070102
  • Bifenthrin
    • A Source Unknown

10 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

10 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

10 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

10 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

10 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

10 Miles

2014

5A

Low

  • Fenpropathrin
    • A Source Unknown

10 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

10 Miles

2024

5B


2012
  • Nitrate and Nitrite
    • Nonpoint Source

10 Miles

1998

5B


2004
  • Nitrogen, Nitrate
    • A Source Unknown

10 Miles

2014

5A

Low

  • Permethrin
    • A Source Unknown

10 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

10 Miles

2024

5A

Low

  • Sulfates
    • A Source Unknown

10 Miles

2002

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

10 Miles

2002

5A

Low

  • Toxaphene
    • A Source Unknown

10 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

Low



4

Wildlife Lake

Lake & Reservoir

4412.210000  /  18070105
  • Oxygen, Dissolved
    • A Source Unknown

14 Acres

2014

5A

Low



4

Wilmington Drain

River & Stream

4411.020000  /  18070104
  • Copper
    • A Source Unknown

0.58 Miles

1996

5A

Low

  • Indicator Bacteria
    • A Source Unknown

0.58 Miles

2014

5A

Low



5

Adobe Creek (Lake County)

River & Stream

5513.520000,5513.550301,5513.550302,5513.550303,5513.550305  / 
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2020

5A

Low



5

Agatha Canal (Merced County)

River & Stream

6541.200000  /  18040001
  • pH
    • A Source Unknown

10 Miles

2010

5A

Low



5

Almanor Lake

Lake & Reservoir

51841000  /  18020121
  • Mercury
    • A Source Unknown

24897 Acres

2010

5A

Low



5

Amador Lake

Lake & Reservoir

53240041  /  18040012
  • Mercury
    • A Source Unknown

321 Acres

2014

5A

Low

  • pH (high)
    • A Source Unknown

321 Acres

2010

5A

Low



5

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

River & Stream

51921000  /  18020109
  • Benzo[b]fluoranthene
    • A Source Unknown

23 Miles

2024

5A

Low

  • Bifenthrin
    • A Source Unknown

23 Miles

2014

5A

Low

  • Chrysene (C1-C4)
    • A Source Unknown

23 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

23 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

23 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

23 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

23 Miles

1990

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

23 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

23 Miles

2014

5A

Low

  • Temperature, water
    • A Source Unknown

23 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

23 Miles

2014

5A

Low



5

American River, North Fork

River & Stream

51421010  /  18020128
  • Mercury
    • A Source Unknown

71 Miles

2010

5A

Low



5

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

River & Stream

51432060  /  18020129
  • Mercury
    • A Source Unknown

30 Miles

2006

5A

Low



5

Anderson Creek (Shasta County)

River & Stream

5508.100001,5508.200000  /  18020101
  • Indicator Bacteria
    • A Source Unknown

17 Miles

2014

5A

Low



5

Antelope Creek (Tehama County)

River & Stream

50963000  /  18020119
  • Arsenic
    • A Source Unknown

29 Miles

2020

5A

Low

  • Boron
    • A Source Unknown

29 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

29 Miles

2010

5A

Low



5

Antelope Lake

Lake & Reservoir

51854013  /  18020122
  • Oxygen, Dissolved
    • A Source Unknown

948 Acres

2020

5A

Low

  • pH
    • A Source Unknown

948 Acres

2020

5A

Low



5

Arcade Creek

River & Stream

51921000  /  18020111
  • Bifenthrin
    • A Source Unknown

18 Miles

2020

5A

Low

  • Copper
    • A Source Unknown

18 Miles

2002

5A

Low

  • Fipronil Sulfone
    • A Source Unknown

18 Miles

2020

5A

Low

  • Malathion
    • A Source Unknown

18 Miles

2010

5A

Low

  • Permethrin
    • A Source Unknown

18 Miles

2020

5B


2019
  • Pyrethroids
    • A Source Unknown

18 Miles

2010

5B


2019
  • Toxicity
    • A Source Unknown

18 Miles

2014

5A

Low



5

Ash Creek, Upper

River & Stream

5526.640201,5526.640203,5526.640204,5526.640205,5526.640302,5526.640303,5526.640304  /  18020002
  • Indicator Bacteria
    • A Source Unknown

19 Miles

2014

5A

Low

  • pH
    • A Source Unknown

19 Miles

2010

5A

Low



5

Ash Slough (Madera County)

River & Stream

54520000  /  18040001
  • Copper
    • A Source Unknown

22 Miles

2014

5A

Low



5

Auburn Ravine

River & Stream

5514.220201,5514.220202,5514.220205,5514.220206,5519.220000  /  18020109
  • Indicator Bacteria
    • A Source Unknown

31 Miles

2020

5A

Low



5

Avena Drain

River & Stream

6531.400000  /  18040002
  • Ammonia
    • A Source Unknown

6 Miles

2002

5A

Low

  • Indicator Bacteria
    • A Source Unknown

6 Miles

2014

5A

Low



5

Barker Slough (in Delta Waterways, northwestern portion)

River & Stream

5510.000000  / 
  • Aluminum
    • A Source Unknown

2.9 Miles

2024

5A

Low



5

Bass Lake (Madera County)

Lake & Reservoir

54022000  /  18040006
  • Mercury
    • A Source Unknown

1002 Acres

2014

5A

Low



5

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

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

7.7 Miles

2014

5A

Low



5

Beacon Creek (Sacramento County)

River & Stream

5519.110000  / 
  • Toxicity
    • A Source Unknown

6.7 Miles

2020

5A

Low



5

Bear Creek (Colusa County)

River & Stream

51320023  /  18020116
  • Boron
    • A Source Unknown

15 Miles

2020

5A

Low

  • Mercury
    • Resource Extraction

15 Miles

2002

5B


2007
  • Selenium
    • A Source Unknown

15 Miles

2020

5A

Low

  • pH
    • A Source Unknown

15 Miles

2020

5A

Low



5

Bear Creek (San Joaquin and Calaveras Counties; outside Delta Waterways)

River & Stream

6531.200000,6531.300000  /  18040005
  • Bifenthrin
    • A Source Unknown

51 Miles

2020

5A

Low

  • Chlorpyrifos
    • A Source Unknown

51 Miles

2010

5B


2017
  • Copper
    • A Source Unknown

51 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

51 Miles

2014

5A

Low

  • Low Dissolved Oxygen
    • A Source Unknown

51 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

51 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

51 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

51 Miles

2010

5A

Low

  • Zinc
    • A Source Unknown

51 Miles

2010

5A

Low



5

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

River & Stream

53800010  /  18040001
  • Bifenthrin
    • A Source Unknown

75 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

75 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

75 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

75 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

75 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

75 Miles

2010

5A

Low



5

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

River & Stream

53260050  /  18040012
  • Copper
    • A Source Unknown

5.5 Miles

2028

5A

Low



5

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

River & Stream

53260040  /  18040012
  • pH (low)
    • A Source Unknown

8.6 Miles

2010

5A

Low



5

Bear River, Lower (below Camp Far West Reservoir)

River & Stream

51510000  /  18020126
  • Aluminum
    • A Source Unknown

21 Miles

2020

5A

Low

  • Chlorpyrifos
    • Agriculture

21 Miles

2010

5C


2026
  • Iron
    • A Source Unknown

21 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

21 Miles

1800

5A

Low



5

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

River & Stream

5516.310004,5516.320202,5516.330001,5516.330002,5516.330003,5516.330004,5516.340303  /  18020126
  • Mercury
    • A Source Unknown

24 Miles

2002

5A

Low



5

Beaver Creek

River & Stream

52641011  /  18020003
  • Indicator Bacteria
    • A Source Unknown

23 Miles

2014

5A

Low



5

Bell Creek (Tuolumne County)

River & Stream

6536.400101,6536.400104  / 
  • Indicator Bacteria
    • A Source Unknown

8.3 Miles

2014

5A

Low



5

Berenda Creek (Madera County)

River & Stream

54530020  /  18040001
  • Chlorpyrifos
    • Agriculture

22 Miles

2010

5C


2026
  • Toxicity
    • A Source Unknown

22 Miles

2014

5A

Low



5

Berenda Slough (Madera County)

River & Stream

54520000  /  18040001
  • Bifenthrin
    • A Source Unknown

23 Miles

2014

5A

Low

  • Chlorpyrifos
    • Agriculture

23 Miles

2010

5C


2026
  • Copper
    • A Source Unknown

23 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

23 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

23 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

23 Miles

2014

5A

Low

    In 2008, the Irrigated Lands Regulatory Program developed a management plan for Berenda Slough for the species Selenastrum capricornutum. The plan was completed in October 2013.


5

Berryessa, Lake

Lake & Reservoir

51221010  /  18020117
  • Mercury
    • A Source Unknown

18677 Acres

1996

5A

Low

  • pH
    • A Source Unknown

18677 Acres

2020

5A

Low



5

Big Chico Creek (Butte and Tehama Counties)

River & Stream

5504.200002,5509.140101,5509.140102,5509.140103,5509.140201,5509.140202,5520.400001  /  18020103
  • Bifenthrin
    • A Source Unknown

56 Miles

2014

5A

Low

  • Chromium
    • A Source Unknown

56 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

56 Miles

2010

5A

Low

  • Nickel
    • A Source Unknown

56 Miles

2014

5A

Low

  • Nitrogen, ammonia (Total Ammonia)
    • A Source Unknown

56 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

56 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

56 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

56 Miles

2014

5A

Low

  • pH
    • A Source Unknown

56 Miles

2014

5A

Low



5

Black Butte Reservoir

Lake & Reservoir

50432000  /  18020115
  • Mercury
    • A Source Unknown

4310 Acres

2002

5A

Low



5

Black Rascal Creek (Merced County)

River & Stream

6535.800000  /  18040001
  • Indicator Bacteria
    • A Source Unknown

10 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

10 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

Low



5

Blue Lakes (Lake County)

Lake & Reservoir

51354020  /  18020116
  • Mercury
    • A Source Unknown

97 Acres

2014

5A

Low



5

Brack Tract Drain, at Woodbridge Rd (San Joaquin County, in Delta Waterways, eastern portion)

River & Stream

6544.000000  /  18040003
  • Arsenic
    • A Source Unknown

3.4 Miles

2014

5A

Low



5

Brite Valley Lake

Lake & Reservoir

55620020  /  18030003
  • Mercury
    • A Source Unknown

59 Acres

2014

5A

Low



5

Britton Lake

Lake & Reservoir

52631012  /  18020003
  • Mercury
    • A Source Unknown

1078 Acres

2010

5A

Low



5

Bull Meadow Creek (Tuolumne County)

River & Stream

53640032  /  18040009
  • Indicator Bacteria
    • A Source Unknown

3.6 Miles

2014

5A

Low



5

Burch Creek (Tehama County)

River & Stream

50420070  /  18020103
  • Toxicity
    • A Source Unknown

32 Miles

2014

5A

Low



5

Burns Valley (Lake County)

River & Stream

5513.510301  / 
  • Oxygen, Dissolved
    • A Source Unknown

3.6 Miles

2020

5A

Low



5

Butte Creek (Butte County)

River & Stream

52040000  /  18020104
  • Benzo(a)anthracene
    • A Source Unknown

93 Miles

2024

5A

Low

  • Benzo(a)pyrene
    • A Source Unknown

93 Miles

2024

5A

Low

  • Benzo[k]fluoranthene
    • A Source Unknown

93 Miles

2024

5A

Low

  • Chrysene (C1-C4)
    • A Source Unknown

93 Miles

2024

5A

Low

  • Dibenz[a,h]anthracene
    • A Source Unknown

93 Miles

2024

5A

Low

  • Indeno[1,2,3-cd]pyrene
    • A Source Unknown

93 Miles

2024

5A

Low

  • Mercury
    • A Source Unknown

93 Miles

2010

5A

Low



5

Butte Lake

Lake & Reservoir

52636011  /  18020003
  • Mercury
    • A Source Unknown

206 Acres

2014

5A

Low



5

Butte Slough

River & Stream

52030000  /  18020104
  • Aluminum
    • A Source Unknown

9 Miles

2020

5A

Low

  • Iron
    • A Source Unknown

9 Miles

2024

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

9 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

9 Miles

2014

5A

Low



5

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

River & Stream

51120000  /  18020109
  • Boron
    • A Source Unknown

84 Miles

2010

5A

Low

  • Mercury
    • Resource Extraction

84 Miles

1996

5B


2007
  • Oxygen, Dissolved
    • A Source Unknown

84 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

84 Miles

2014

5A

Low

  • pH
    • A Source Unknown

84 Miles

2014

5A

Low



5

Cache Slough (in Delta Waterways, northern and northwestern portions)

River & Stream

5510.000000  /  18020109
  • Bifenthrin
    • A Source Unknown

12 Miles

2020

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

12 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

12 Miles

2020

5A

Low

  • Permethrin
    • A Source Unknown

12 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

12 Miles

2020

5A

Low



5

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

River & Stream

53130000  /  18040004
  • Toxicity
    • A Source Unknown

22 Miles

2014

5A

Low



5

Calaveras River, Lower (from Stockton Diverting Canal to the Delta Waterways)

River & Stream

6531.300000  / 
  • Bifenthrin
    • A Source Unknown

1.1 Miles

2026

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

1.1 Miles

2026

5A

Low

  • Cypermethrin
    • A Source Unknown

1.1 Miles

2026

5A

Low

  • Deltamethrin
    • A Source Unknown

1.1 Miles

2026

5A

Low

  • Indicator Bacteria
    • Urban Runoff/Storm Sewers

1.1 Miles

2022

5B


2008
  • Pyrethroids
    • A Source Unknown

1.1 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

1.1 Miles

2026

5A

Low



5

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

River & Stream

6531.300000,6544.000000  / 
  • Indicator Bacteria
    • Urban Runoff/Storm Sewers

5.7 Miles

2022

5B


2008
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

5.7 Miles

2022

5B


2011
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

5.7 Miles

2022

5A

Low



5

California Aqueduct (Panoche Creek to Grapevine)

River & Stream

7551.110000,7551.120000,7556.300605,7557.100002,7557.200200,7557.300000,7558.400000,7558.500107,7558.600100  / 
  • pH
    • A Source Unknown

185 Miles

2020

5A

Low



5

California, Lake

Lake & Reservoir

50810000  /  18020102
  • Mercury
    • A Source Unknown

92 Acres

2014

5A

Low



5

Camanche Reservoir

Lake & Reservoir

53120000  /  18040005
  • Copper
    • A Source Unknown

6679 Acres

2002

5A

Low

  • Mercury
    • A Source Unknown

6679 Acres

2010

5A

Low

  • Zinc
    • A Source Unknown

6679 Acres

2002

5A

Low



5

Camp Creek (El Dorado County)

River & Stream

6532.230101,6532.230102,6532.230501,6532.230601  / 
  • Specific Conductivity
    • A Source Unknown

31 Miles

2020

5A

Low



5

Camp Far West Reservoir

Lake & Reservoir

51631013  /  18020126
  • Mercury
    • A Source Unknown

713 Acres

2002

5A

Low



5

Canal Creek

River & Stream

6535.800000,6535.900000  / 
  • Copper
    • A Source Unknown

31 Miles

2020

5A

Low



5

Cantua Creek

River & Stream

55111011  /  18030011
  • Chlorpyrifos
    • Agriculture

26 Miles

2014

5A

Low

  • Selenium
    • A Source Unknown

26 Miles

2014

5A

Low

  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • A Source Unknown

26 Miles

2014

5A

Low



5

Canyon Creek (Modoc County)

River & Stream

52651032  /  18020002
  • Indicator Bacteria
    • A Source Unknown

16 Miles

2014

5A

Low



5

Castac Lake

Lake & Reservoir

55630063  /  18030003
  • Mercury
    • A Source Unknown

315 Acres

2014

5A

Low



5

Castle Creek, Lower (Nevada County)

River & Stream

51734010  /  18020125
  • pH
    • A Source Unknown

4.1 Miles

2014

5A

Low



5

Castle Creek, Upper (Nevada County)

River & Stream

51734010  /  18020125
  • pH
    • A Source Unknown

4.1 Miles

2014

5A

Low



5

Cherokee Creek (Sierra County)

River & Stream

51753044  /  18020125
  • pH
    • A Source Unknown

5.9 Miles

2014

5A

Low



5

Chicken Ranch Slough

River & Stream

5519.210000  /  18020111
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

8.4 Miles

1998

5B


2004
  • Diazinon
    • Urban Runoff/Storm Sewers

8.4 Miles

1998

5B


2004
  • Pyrethroids
    • A Source Unknown

8.4 Miles

2010

5B


2019
  • Toxicity
    • A Source Unknown

8.4 Miles

2014

5A

Low



5

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

River & Stream

5504.200002  /  18020103
  • Toxicity
    • A Source Unknown

5.4 Miles

2014

5A

Low



5

Clear Creek (Butte County)

River & Stream

5520.400001,5521.100101,5521.100106  / 
  • Alkalinity as CaCO3
    • A Source Unknown

15 Miles

2024

5A

Low

  • Aluminum
    • A Source Unknown

15 Miles

2024

5A

Low

  • Copper
    • A Source Unknown

15 Miles

2024

5A

Low

  • Indeno[1,2,3-cd]pyrene
    • A Source Unknown

15 Miles

2024

5A

Low

  • Iron
    • A Source Unknown

15 Miles

2024

5A

Low

  • Lead
    • A Source Unknown

15 Miles

2024

5A

Low

  • Mercury
    • A Source Unknown

15 Miles

2024

5A

Low

  • Selenium
    • A Source Unknown

15 Miles

2024

5A

Low



5

Clear Creek (Nevada County)

River & Stream

5517.200202  / 
  • Indicator Bacteria
    • A Source Unknown

7 Miles

2020

5A

Low



5

Clear Creek (below Whiskeytown Lake, Shasta County)

River & Stream

5508.100001,5508.100002,5524.610000,5524.620001,5524.620002,5524.700003  /  18020112
  • Mercury
    • A Source Unknown

18 Miles

2010

5A

Low



5

Clear Lake

Lake & Reservoir

51352000  /  18020116
  • Boron
    • A Source Unknown

39582 Acres

2020

5A

Low

  • Lead
    • A Source Unknown

39582 Acres

2020

5A

Low

  • Mercury
    • A Source Unknown

39582 Acres

1988

5B


2003
  • Microcystins
    • A Source Unknown

39582 Acres

2020

5A

Low

  • Nutrients
    • A Source Unknown

39582 Acres

1986

5B


2007
  • Oxygen, Dissolved
    • A Source Unknown

39582 Acres

2020

5A

Low

  • pH
    • A Source Unknown

39582 Acres

2020

5A

Low



5

Cole Creek (Lake County)

River & Stream

5513.550200  / 
  • Oxygen, Dissolved
    • A Source Unknown

15 Miles

2020

5A

Low



5

Colusa Basin Drain

River & Stream

5520.100001,5520.100002,5520.210000  /  18020104
  • Aluminum
    • A Source Unknown

72 Miles

2020

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

72 Miles

2010

5A

Low

  • Dieldrin
    • A Source Unknown

72 Miles

2010

5A

Low

  • Group A Pesticides
    • A Source Unknown

72 Miles

1998

5A

Low

  • Iron
    • A Source Unknown

72 Miles

2020

5A

Low

  • Low Dissolved Oxygen
    • A Source Unknown

72 Miles

2010

5A

Low

  • Mercury
    • A Source Unknown

72 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

72 Miles

2020

5A

Low



5

Combie, Lake

Lake & Reservoir

51633011  /  18020126
  • Mercury
    • A Source Unknown

269 Acres

2002

5A

Low



5

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

River & Stream

5518.600301, 5518.600302  /  18020121
  • Toxicity
    • A Source Unknown

9.9 Miles

2014

5A

Low



5

Contra Costa Canal (in Delta Waterways, western portion)

River & Stream

6543.000103, 6543.000104, 6544.000000  / 
  • pH
    • A Source Unknown

10 Miles

2026

5A

Low



5

Contra Loma Reservoir

Lake & Reservoir

54400000  /  18040003
  • Mercury
    • A Source Unknown

66 Acres

2014

5A

Low



5

Coon Creek (from confluence of Orr and Dry Creeks to East Side Canal, Placer and Sutter Counties)

River & Stream

5514.220204,5514.220205,5519.220000  /  18020109
  • Ammonia as N, Total
    • A Source Unknown

30 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

30 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

30 Miles

2014

5A

Low



5

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

River & Stream

51922000  /  18020109
  • Indicator Bacteria
    • A Source Unknown

5.8 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

5.8 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

5.8 Miles

2014

5A

Low



5

Coon Hollow Creek (El Dorado County)

River & Stream

51432024  /  18020129
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

1.7 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

1.7 Miles

2014

5A

Low



5

Cosumnes River, Lower (below Michigan Bar to Delta Waterways)

River & Stream

6531.110000,6532.210201  / 
  • Indicator Bacteria
    • A Source Unknown

32 Miles

2022

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

32 Miles

2022

5A

Low

  • Specific Conductivity
    • A Source Unknown

32 Miles

2022

5A

Low

  • Toxicity
    • A Source Unknown

32 Miles

2022

5A

Low

  • Zinc
    • A Source Unknown

32 Miles

2022

5A

Low



5

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

River & Stream

6531.110000,6544.000000  / 
  • Mercury
    • A Source Unknown

2.8 Miles

2022

5A

Low



5

Cosumnes River, North Fork

River & Stream

53223080  /  18040013
  • Oxygen, Dissolved
    • A Source Unknown

49 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

49 Miles

2014

5A

Low



5

Cosumnes River, Upper (above Michigan Bar)

River & Stream

53223080  /  18040005
  • Invasive Species
    • A Source Unknown

17 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

17 Miles

2010

5A

Low

  • Specific Conductivity
    • A Source Unknown

17 Miles

2010

5A

Low



5

Cottonwood Creek (S Madera County)

River & Stream

54520000  /  18040001
  • Bifenthrin
    • A Source Unknown

30 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

30 Miles

2014

5A

Low

  • Diuron
    • Agriculture

30 Miles

2014

5C


2020
  • Indicator Bacteria
    • A Source Unknown

30 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

30 Miles

2020

5A

Low



5

Coyote Creek (Tehama County)

River & Stream

50420070  /  18020103
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2014

5A

Low



5

Cross Creek (Kings and Tulare Counties)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

32 Miles

2014

5A

Low



5

Curry Creek (Placer and Sutter Counties)

River & Stream

51922000  /  18020111
  • Pyrethroids
    • A Source Unknown

12 Miles

2010

5B


2019
  • Toxicity
    • A Source Unknown

12 Miles

2014

5A

Low



5

Curtis Creek (Tuolumne County)

River & Stream

53631021  /  18040009
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

Low

  • pH
    • A Source Unknown

11 Miles

2010

5A

Low



5

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

River & Stream

51332010  /  18020116
  • Mercury
    • A Source Unknown

6.4 Miles

2010

5A

Low



5

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

River & Stream

51332010  /  18020116
  • Mercury
    • A Source Unknown

4.5 Miles

2010

5A

Low



5

Davis Creek Reservoir

Lake & Reservoir

51332010  /  18020116
  • Mercury
    • A Source Unknown

162 Acres

1988

5A

Low



5

Davis No 2, unnamed spillway (near N Podesta Lane)

Lake & Reservoir

6531.300000  /  18040004
  • Mercury
    • A Source Unknown

126 Acres

2014

5A

Low



5

Deadman Creek (Merced County)

River & Stream

53570000  /  18040001
  • Arsenic
    • A Source Unknown

11 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

11 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

11 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

11 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low



5

Deep Slough (Merced County)

River & Stream

53570000  /  18040001
  • Zinc
    • A Source Unknown

4.4 Miles

2010

5A

Low

  • pH
    • A Source Unknown

4.4 Miles

2010

5A

Low



5

Deer Creek (Nevada County, Above Scotts Flat Reservoir to the Confluence of Deer Creek North and South Forks)

River & Stream

51720011  /  18020125
  • pH
    • A Source Unknown

0.72 Miles

2014

5A

Low



5

Deer Creek (Tulare County)

River & Stream

55810000  /  18030005
  • Chlorpyrifos
    • A Source Unknown

57 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

57 Miles

2014

5A

Low

  • pH (high)
    • A Source Unknown

57 Miles

2010

5A

Low



5

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

River & Stream

51720012  /  18020125
  • Mercury
    • A Source Unknown

16 Miles

2010

5A

Low

  • pH
    • A Source Unknown

16 Miles

2014

5A

Low



5

Del Puerto Creek (Stanislaus County)

River & Stream

6535.500000,6541.100000,6542.100301,6542.100302,6542.100303,6542.100304,6542.100305  / 
  • Bifenthrin
    • A Source Unknown

29 Miles

2020

5C


2037
  • Boron
    • A Source Unknown

29 Miles

2020

5A

Low

  • Chromium
    • A Source Unknown

29 Miles

2020

5A

Low

  • Cyfluthrin
    • A Source Unknown
    • Agriculture

29 Miles

2020

5C


2037
  • Cyhalothrin, Lambda
    • A Source Unknown

29 Miles

2020

5C


2037
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

29 Miles

2020

5A

Low

  • Diuron
    • A Source Unknown

29 Miles

2020

5C


2021
  • Esfenvalerate/Fenvalerate
    • A Source Unknown

29 Miles

2020

5C


2037
  • Indicator Bacteria
    • A Source Unknown

29 Miles

2020

5A

Low

  • Nickel
    • A Source Unknown

29 Miles

2020

5A

Low

  • Oxyfluorfen
    • A Source Unknown

29 Miles

2026

5A

Low

  • Pyrethroids
    • A Source Unknown

29 Miles

2020

5C


2037
    The pyrethroids of concern for this listing are bifenthrin, lambda-cyhalothrin, esfenvalerate/fenvalerate and permethrin.
  • Specific Conductivity
    • A Source Unknown

29 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

29 Miles

2020

5C


2024
  • Zinc
    • A Source Unknown

29 Miles

2020

5A

Low

  • pH
    • A Source Unknown

29 Miles

2020

5A

Low



5

Delaney Creek (Tuolumne County)

River & Stream

6536.600302  / 
  • Alkalinity as CaCO3
    • A Source Unknown

6.8 Miles

2026

5A

Low



5

Delta-Mendota Canal (outside Delta Waterways, to ONeil Forebay)

River & Stream

6541.100000,6541.200000,6543.000403,6544.000000,6575.000000  / 
  • pH
    • A Source Unknown

84 Miles

2022

5A

Low



5

Discovery Bay (in Delta Waterways, central portion)

Estuary

6544.000000  /  18040003
  • Mercury
    • A Source Unknown

67 Acres

2014

5A

Low



5

Dog Creek (Tuolumne County)

River & Stream

6536.600202  / 
  • Alkalinity as CaCO3
    • A Source Unknown

1.4 Miles

2026

5A

Low



5

Dolly Creek

River & Stream

51854030  /  18020122
  • Copper
    • A Source Unknown

1.5 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

1.5 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.


5

Don Pedro Lake

Lake & Reservoir

53632010  /  18040009
  • Alkalinity as CaCO3
    • A Source Unknown

11361 Acres

2026

5A

Low

  • Mercury
    • A Source Unknown

11361 Acres

2002

5A

Low



5

Dry Creek (Contra Costa County; in Delta Waterways, western portion)

River & Stream

6543.000101,6544.000000  / 
  • Toxicity
    • A Source Unknown

2.2 Miles

2020

5A

Low



5

Dry Creek (Madera County)

River & Stream

54520000  /  18040001
  • Bifenthrin
    • A Source Unknown

25 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

25 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

25 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

25 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

25 Miles

2014

5A

Low

  • pH
    • A Source Unknown

25 Miles

2014

5A

Low



5

Dry Creek (Placer and Sacramento Counties)

River & Stream

51424010  /  18020111
  • Fipronil
    • A Source Unknown

27 Miles

2024

5A

Low



5

Dry Creek (tributary to Clear Creek, Butte County)

River & Stream

52040000  /  18020105
  • Alkalinity as CaCO3
    • A Source Unknown

18 Miles

2024

5A

Low

  • Aluminum
    • A Source Unknown

18 Miles

2024

5A

Low

  • Cadmium
    • A Source Unknown

18 Miles

2024

5A

Low

  • Copper
    • A Source Unknown

18 Miles

2024

5A

Low

  • Iron
    • A Source Unknown

18 Miles

2024

5A

Low

  • Lead
    • A Source Unknown

18 Miles

2024

5A

Low

  • Mercury
    • A Source Unknown

18 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

18 Miles

2024

5A

Low



5

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

River & Stream

6535.300000,6535.400000,6535.500000  /  18040002
  • Bifenthrin
    • A Source Unknown

35 Miles

2014

5C


2030
  • Chlorpyrifos
    • Agriculture

35 Miles

2010

5C


2026
  • Cyfluthrin
    • A Source Unknown

35 Miles

2014

5C


2030
  • Cyhalothrin, Lambda
    • A Source Unknown

35 Miles

2014

5C


2030
  • Deltamethrin
    • A Source Unknown

35 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

35 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

35 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

35 Miles

2020

5C


2030
  • Toxicity
    • A Source Unknown

35 Miles

2014

5A

Low



5

Dry Creek tributary to Coon Creek (Placer County)

River & Stream

5514.220101,5514.220204  / 
  • Indicator Bacteria
    • A Source Unknown

7.2 Miles

2024

5A

Low



5

Duck Creek (San Joaquin County)

River & Stream

6531.400000, 6544.000000  /  18040002
  • Aluminum
    • A Source Unknown

36 Miles

2026

5A

Low

  • Bifenthrin
    • A Source Unknown

36 Miles

2014

5A

Low

  • Chlorpyrifos
    • Agriculture

36 Miles

2010

5C


2026
  • Indicator Bacteria
    • A Source Unknown

36 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

36 Miles

2026

5A

Low

  • Lead
    • A Source Unknown

36 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

36 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

36 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

36 Miles

2014

5A

Low



5

Duck Slough (Merced County)

River & Stream

6535.700000,6535.800000  /  18040001
  • Bifenthrin
    • A Source Unknown

28 Miles

2010

5C


2030
  • Indicator Bacteria
    • A Source Unknown

28 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

28 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

28 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

28 Miles

2014

5A

Low



5

Dunn Creek (Mt Diablo Mine to Marsh Creek)

River & Stream

6543.000201  /  18040003
  • Mercury
    • A Source Unknown

0.65 Miles

1994

5A

Low

    All resource extraction sources are abandoned mines.
  • Metals
    • A Source Unknown

0.65 Miles

1994

5A

Low

    All resource extraction sources are abandoned mines.


5

East Park Reservoir

Lake & Reservoir

52233000  /  18020115
  • Mercury
    • A Source Unknown

1664 Acres

2010

5A

Low



5

Eastman Lake (Madera County)

Lake & Reservoir

6539.110501,6539.110502,6539.120000,6539.200302  /  18040007
  • Mercury
    • A Source Unknown

1533 Acres

2014

5A

Low



5

Eastman Lake (Shasta County)

Lake & Reservoir

52641053  /  18020003
  • pH
    • A Source Unknown

15 Acres

2010

5A

Low



5

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

River & Stream

55810000  /  18030012
  • Chlorpyrifos
    • A Source Unknown

12 Miles

2010

5A

Low



5

Elder Creek (Sacramento County)

River & Stream

5519.110000  /  18020109
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2020

5A

Low

  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

11 Miles

1998

5B


2004
  • Diazinon
    • Urban Runoff/Storm Sewers

11 Miles

1998

5B


2004
  • Pyrethroids
    • A Source Unknown

11 Miles

2010

5B


2019
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low



5

Elk Bayou (Tulare County)

River & Stream

55810000  /  18030012
  • Chlorpyrifos
    • A Source Unknown

11 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low

  • pH
    • A Source Unknown

11 Miles

2014

5A

Low



5

Empire Tract (in Delta Waterways, eastern portion)

River & Stream

6544.000000  / 
  • Oxygen, Dissolved
    • A Source Unknown

2.3 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

2.3 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

2.3 Miles

2020

5A

Low



5

Englebright Lake

Lake & Reservoir

5517.140001,5517.140002,5517.140003,5517.310003  /  18020125
  • Mercury
    • A Source Unknown

1260 Acres

2002

5A

Low



5

Fall River (Pit)

River & Stream

5526.410301,5526.410302,5526.410503,5526.410506,5526.430201  /  18020003
  • Sedimentation/Siltation
    • A Source Unknown

25 Miles

1996

5A

Low

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

25 Miles

2014

5A

Low



5

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

River & Stream

51832062  /  18020123
  • Toxicity
    • A Source Unknown

23 Miles

2014

5A

Low



5

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

River & Stream

51540000  /  18020109
  • Group A Pesticides
    • A Source Unknown

72 Miles

1990

5A

Low

  • Mercury
    • A Source Unknown

72 Miles

1992

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

72 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

72 Miles

2014

5A

Low



5

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

River & Stream

51833050  /  18020123
  • Aluminum
    • A Source Unknown

80 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

80 Miles

2010

5A

Low

  • Specific Conductivity
    • A Source Unknown

80 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

80 Miles

2014

5A

Low

    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
  • Iron
    • A Source Unknown

50 Miles

2028

5A

Low

  • Mercury
    • A Source Unknown

50 Miles

2006

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

50 Miles

2028

5A

Low

  • Temperature, water
    • A Source Unknown

50 Miles

2006

5A

Low

  • Toxicity
    • A Source Unknown

50 Miles

2014

5A

Low

    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)
    • A Source Unknown

33 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

33 Miles

2014

5A

Low



5

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

River & Stream

51860031  /  18020121
  • Toxicity
    • A Source Unknown

38 Miles

2014

5A

Low



5

Fingers Lake

Lake & Reservoir

50420070  /  18020103
  • Mercury
    • A Source Unknown

7.4 Acres

2014

5A

Low



5

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

River & Stream

6544.000000  /  18040003
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

1.7 Miles

1998

5B


2007
  • Diazinon
    • Urban Runoff/Storm Sewers

1.7 Miles

1998

5B


2007
  • Indicator Bacteria
    • A Source Unknown

1.7 Miles

2014

5B


2008
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

1.7 Miles

2002

5A

Low



5

Flyaway Gulch (Mariposa County)

River & Stream

6537.210200,6537.220000  / 
  • Benthic Community Effects
    • A Source Unknown

3.8 Miles

2026

5A

Low

  • pH
    • A Source Unknown

3.8 Miles

2020

5A

Low



5

Folsom Lake

Lake & Reservoir

5514.210101, 5514.210102, 5514.210103, 5514.210201, 5514.210202, 5514.210203, 5514.230000, 5514.230000, 5514.250002,5514.210101,(Total Count: 18)  /  18020128
  • Mercury
    • A Source Unknown

10942 Acres

2010

5A

Low



5

Forbes Creek (Lake County)

River & Stream

5513.550304,5513.550600  / 
  • Aluminum
    • A Source Unknown

5 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

5 Miles

2020

5A

Low



5

Franks Tract (in Delta Waterways, central portion)

Lake & Reservoir

6544.000000  / 
  • Temperature, water
    • A Source Unknown

3171 Acres

2020

5A

Low



5

French Camp Slough (San Joaquin County; outside Delta Waterways)

River & Stream

6531.400000,6544.000000  /  18040002
  • Bifenthrin
    • A Source Unknown

6 Miles

2014

5A

Low

  • Chlorpyrifos
    • Agriculture

6 Miles

2010

5B


2007
  • Indicator Bacteria
    • A Source Unknown

6 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

6 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

6 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

6 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

6 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

6 Miles

2010

5A

Low



5

French Ravine

River & Stream

51632011  /  18020126
  • Indicator Bacteria
    • A Source Unknown

1.8 Miles

2014

5A

Low



5

Freshwater Creek (Little Valley to Salt Creek, Colusa County)

River & Stream

56130010  /  18020104
  • Indicator Bacteria
    • A Source Unknown

34 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

34 Miles

2024

5A

Low



5

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

River & Stream

6539.310301,6539.310302,6539.310303,6539.310401,6539.310402,6539.310403,6539.310404,6539.310600  /  18040007
  • Low Dissolved Oxygen
    • A Source Unknown

31 Miles

2010

5A

Low



5

Fresno Slough (Fresno County)

River & Stream

7551.200000,7551.800000  /  18030012
  • Chlorpyrifos
    • A Source Unknown

17 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

17 Miles

2014

5A

Low



5

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

River & Stream

52030000  /  18020106
  • Chlorpyrifos
    • A Source Unknown

11 Miles

2024

5A

Low

  • Diazinon
    • Agriculture

11 Miles

2010

5C


2026
  • Diuron
    • Agriculture

11 Miles

2010

5A

Low

  • Oxyfluorfen
    • A Source Unknown

11 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low

  • pH
    • A Source Unknown

11 Miles

2010

5A

Low



5

Gold Run (Nevada County)

River & Stream

51720012  /  18020126
  • Mercury
    • A Source Unknown

1.9 Miles

2010

5A

Low



5

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

River & Stream

5511.300000  /  18020110
  • Oxygen, Dissolved
    • A Source Unknown

9.9 Miles

2010

5A

Low



5

Grant Line Canal (in Delta Waterways, southern portion)

River & Stream

6544.000000  / 
  • Aluminum
    • A Source Unknown

7.9 Miles

2026

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

7.9 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

7.9 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

7.9 Miles

2020

5A

Low



5

Grant Line Canal subwatershed at Clifton Court Rd (in Delta Waterways, southern portion)

River & Stream

6544.000000  /  18040003
  • Specific Conductivity
    • A Source Unknown

7 Miles

2014

5A

Low



5

Grant Line Canal subwatershed near Calpack Rd (San Joaquin County)

River & Stream

6544.000000  /  18040003
  • Specific Conductivity
    • A Source Unknown

11 Miles

2014

5A

Low



5

Grasslands Marshes

Wetland, Freshwater

6541.200000  /  18040001
  • Electrical Conductivity
    • A Source Unknown

12508 Acres

1998

5A

Low

  • Selenium
    • A Source Unknown

12508 Acres

1996

5B


2000


5

Grayson Drain (at outfall)

River & Stream

6535.500000,6541.100000  /  18040002
  • Indicator Bacteria
    • A Source Unknown

0.07 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

0.07 Miles

2014

5A

Low



5

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

River & Stream

52040000  /  18020106
  • Toxicity
    • A Source Unknown

7.4 Miles

2014

5A

Low



5

Hamlin Creek (Butte County)

River & Stream

5521.100102  / 
  • Aluminum
    • A Source Unknown

5.1 Miles

2024

5A

Low

  • Cadmium
    • A Source Unknown

5.1 Miles

2024

5A

Low

  • Copper
    • A Source Unknown

5.1 Miles

2024

5A

Low

  • Iron
    • A Source Unknown

5.1 Miles

2024

5A

Low

  • Lead
    • A Source Unknown

5.1 Miles

2024

5A

Low

  • Mercury
    • A Source Unknown

5.1 Miles

2024

5A

Low



5

Harding Drain

River & Stream

6535.500000  /  18040002
  • Chlorpyrifos
    • Agriculture

8.3 Miles

1998

5C


2026
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

8.3 Miles

2010

5A

Low

  • Hexachlorobenzene/ HCB
    • A Source Unknown

8.3 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

8.3 Miles

2014

5A

Low

  • Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
    • A Source Unknown

8.3 Miles

2010

5A

Low

  • alpha.-BHC (Benzenehexachloride or alpha-HCH)
    • A Source Unknown

8.3 Miles

2010

5A

Low



5

Hell Hole Reservoir

Lake & Reservoir

5514.450102,5514.450103  /  18020128
  • Mercury
    • A Source Unknown

1017 Acres

2010

5A

Low



5

Hensley Lake

Lake & Reservoir

53932010  /  18040007
  • Mercury
    • A Source Unknown

1425 Acres

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

1425 Acres

2010

5A

Low

  • pH
    • A Source Unknown

1425 Acres

2010

5A

Low



5

Hetch Hetchy Reservoir

Lake & Reservoir

53660091  /  18040009
  • Mercury
    • A Source Unknown

1894 Acres

2010

5A

Low



5

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

River & Stream

6535.500000,6535.600000  /  18040001
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

Low



5

Holland Cut (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • pH
    • A Source Unknown

1.7 Miles

2020

5A

Low



5

Honcut Creek (Butte and Yuba Counties)

River & Stream

5515.400000  /  18020106
  • Indicator Bacteria
    • A Source Unknown

9.7 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

9.7 Miles

2010

5A

Low



5

Horse Creek (Rising Star Mine to Shasta Lake)

River & Stream

5506.200701  /  18020005
  • Cadmium
    • A Source Unknown

0.48 Miles

1998

5A

Low

    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

0.48 Miles

1998

5A

Low

    All resource extraction sources are abandoned mines.
  • Lead
    • A Source Unknown

0.48 Miles

1998

5A

Low

    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

0.48 Miles

1998

5A

Low

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

0.48 Miles

2010

5A

Low



5

Hospital Creek (San Joaquin and Stanislaus Counties)

River & Stream

6541.100000,6542.100101,6542.100103,6542.100105,6542.100203  /  18040002
  • Boron
    • A Source Unknown

26 Miles

2020

5A

Low

  • Chlorpyrifos
    • Agriculture

26 Miles

2010

5C


2026
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

26 Miles

2010

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

26 Miles

2010

5A

Low

  • Diuron
    • Agriculture

26 Miles

2014

5C


2020
  • Indicator Bacteria
    • A Source Unknown

26 Miles

2014

5A

Low

  • Lead
    • A Source Unknown

26 Miles

2014

5A

Low

  • Methyl Parathion
    • Agriculture

26 Miles

2010

5C


2018
  • Nickel
    • A Source Unknown

26 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

26 Miles

2010

5C


2037
  • Specific Conductivity
    • A Source Unknown

26 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

26 Miles

2014

5C


2024
  • Trifluralin
    • A Source Unknown

26 Miles

2010

5A

Low

  • Zinc
    • A Source Unknown

26 Miles

2014

5A

Low

  • pH
    • A Source Unknown

26 Miles

2020

5A

Low



5

Humbug Creek (Diggins Creek to Yuba River, South Fork)

River & Stream

5517.320301,5517.320304  /  18020125
  • Chromium
    • A Source Unknown

2.3 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

2.3 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.
  • Iron
    • A Source Unknown

2.3 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

2.3 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.
  • Sedimentation/Siltation
    • A Source Unknown

2.3 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

2.3 Miles

1992

5A

Low

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

2.3 Miles

2014

5A

Low



5

Hume Lake

Lake & Reservoir

55234281  /  18030010
  • Oxygen, Dissolved
    • A Source Unknown

86 Acres

2010

5A

Low

  • pH
    • A Source Unknown

86 Acres

2010

5A

Low



5

Indian Creek (from Antelope Lake to East Branch of North Fork Feather River, Plumas County)

River & Stream

51853044  /  18020122
  • Benthic Community Effects
    • A Source Unknown

39 Miles

2020

5A

Low

  • Iron
    • A Source Unknown

39 Miles

2024

5A

Low

  • Manganese
    • A Source Unknown

39 Miles

2024

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

39 Miles

2010

5A

Low



5

Indian Valley Reservoir (Lake County)

Lake & Reservoir

5513.400103,5513.400201,5513.400203  /  18020116
  • Mercury
    • A Source Unknown

3645 Acres

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

3645 Acres

2020

5A

Low



5

Ingalsbe Slough (tributary to Merced River, Merced County)

River & Stream

6535.600000,6535.800000  /  18040001
  • Toxicity
    • A Source Unknown

6.7 Miles

2014

5A

Low



5

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

River & Stream

6541.100000  /  18040002
  • Bifenthrin
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Boron
    • A Source Unknown

2.8 Miles

2020

5A

Low

  • Chlorpyrifos
    • Agriculture

2.8 Miles

2014

5C


2026
  • Cyfluthrin
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Diazinon
    • A Source Unknown

2.8 Miles

2010

5B


2017
  • Dimethoate
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Diuron
    • Agriculture

2.8 Miles

2014

5C


2020
  • Esfenvalerate/Fenvalerate
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Imidacloprid
    • A Source Unknown

2.8 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Oxyfluorfen
    • A Source Unknown

2.8 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

2.8 Miles

2006

5C


2037
    The pyrethroids of concern for this listing are bifenthrin, lamdba-cyhalothrin, esfenvalerate/fenvalerate, cypermethrin, and permethrin.
  • Specific Conductivity
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

2.8 Miles

2014

5C


2024
  • Zinc
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • pH
    • A Source Unknown

2.8 Miles

2014

5A

Low



5

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

River & Stream

6541.100000  /  18040002
  • Chlorpyrifos
    • Agriculture

1.2 Miles

2002

5C


2026
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1.2 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

1.2 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

1.2 Miles

2006

5C


2037
  • Toxicity
    • A Source Unknown

1.2 Miles

2014

5A

Low



5

Isabella Lake

Lake & Reservoir

7554.100202,7554.210000,7554.220506,7554.220707  /  18030003
  • Mercury
    • A Source Unknown

11707 Acres

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

11707 Acres

2010

5A

Low

  • pH
    • A Source Unknown

11707 Acres

2010

5A

Low



5

Jack Slough

River & Stream

5515.400000  /  18020106
  • Diazinon
    • A Source Unknown

16 Miles

2002

5C


2026
  • Oxygen, Dissolved
    • A Source Unknown

16 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

16 Miles

2014

5A

Low



5

Jahant Slough (San Joaquin County)

River & Stream

6531.200000  / 
  • Oxygen, Dissolved
    • A Source Unknown

7.9 Miles

2020

5A

Low



5

James Bypass (Fresno County)

River & Stream

7551.200000,7551.800000  /  18030012
  • Toxicity
    • A Source Unknown

14 Miles

2014

5A

Low



5

James Creek

River & Stream

5512.240101,5512.240103  /  18020117
  • Mercury
    • A Source Unknown

6.8 Miles

1992

5A

Low

    Resource extraction sources are abandoned mines.
  • Nickel
    • A Source Unknown

6.8 Miles

1992

5A

Low

    Resource extraction sources are abandoned mines.


5

Kanaka Creek

River & Stream

5517.410203,5517.420201,5517.420202,5517.420203  /  18020125
  • Arsenic
    • A Source Unknown

10 Miles

2002

5A

Low

    All resource extraction sources are abandoned mines.


5

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

River & Stream

51922000  /  18020111
  • Benthic Community Effects
    • A Source Unknown

6 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

6 Miles

2014

5B


2019
  • Cyfluthrin
    • A Source Unknown

6 Miles

2014

5B


2019
  • Cyhalothrin, Lambda
    • A Source Unknown

6 Miles

2014

5B


2019
  • Cypermethrin
    • A Source Unknown

6 Miles

2014

5B


2019
  • Deltamethrin
    • A Source Unknown

6 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

6 Miles

2010

5B


2019
  • Toxicity
    • A Source Unknown

6 Miles

2014

5A

Low



5

Kaseberg Creek, Lower

River & Stream

5519.220000  / 
  • Bifenthrin
    • A Source Unknown

0.19 Miles

2020

5A

Low

  • Cyfluthrin
    • A Source Unknown

0.19 Miles

2020

5A

Low

  • Cypermethrin
    • A Source Unknown

0.19 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

0.19 Miles

2020

5A

Low



5

Kaseberg Creek, unnamed eastern tributary (from Green Grove Ln to Del Webb Blvd)

River & Stream

51922000  /  18020109
  • Benthic Community Effects
    • A Source Unknown

0.73 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

0.73 Miles

2014

5B


2019
  • Cyfluthrin
    • A Source Unknown
    • Agriculture

0.73 Miles

2014

5B


2019
  • Cyhalothrin, Lambda
    • A Source Unknown

0.73 Miles

2014

5B


2019
  • Cypermethrin
    • A Source Unknown

0.73 Miles

2014

5B


2019
  • Toxicity
    • A Source Unknown

0.73 Miles

2014

5A

Low



5

Kaseberg Creek, unnamed southeastern tributary (from Silverado Middle School to Timber Creek Golf Course, Placer County)

River & Stream

51922000  /  18020111
  • Benthic Community Effects
    • A Source Unknown

2.4 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

2.4 Miles

2014

5B


2019
  • Cyfluthrin
    • A Source Unknown

2.4 Miles

2014

5B


2019
  • Cyhalothrin, Lambda
    • A Source Unknown

2.4 Miles

2014

5B


2019
  • Cypermethrin
    • A Source Unknown

2.4 Miles

2014

5B


2019
  • Deltamethrin
    • A Source Unknown

2.4 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

2.4 Miles

2014

5A

Low



5

Kaseberg Creek, unnamed southern tributary (from Baseline Road to Timber Creek Golf Course, Placer County)

River & Stream

51922000  /  18020111
  • Benthic Community Effects
    • A Source Unknown

1.1 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

1.1 Miles

2014

5B


2019
  • Cyfluthrin
    • A Source Unknown

1.1 Miles

2014

5B


2019
  • Cyhalothrin, Lambda
    • A Source Unknown

1.1 Miles

2014

5B


2019
  • Cypermethrin
    • A Source Unknown

1.1 Miles

2014

5B


2019
  • Deltamethrin
    • A Source Unknown

1.1 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

1.1 Miles

2014

5A

Low



5

Kaweah Lake

Lake & Reservoir

55344010  /  18030007
  • Alkalinity as CaCO3
    • A Source Unknown

1863 Acres

2020

5A

Low

  • Mercury
    • A Source Unknown

1863 Acres

2002

5A

Low



5

Kaweah River (below Terminus Dam, Tulare County)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

9.1 Miles

2014

5A

Low

  • pH
    • A Source Unknown

9.1 Miles

2010

5A

Low



5

Kaweah River East North Fork

River & Stream

7553.410703  / 
  • Alkalinity as CaCO3
    • A Source Unknown

5.3 Miles

2020

5A

Low



5

Kaweah River, Lower (includes St Johns River)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

27 Miles

2014

5A

Low



5

Kaweah River, Marble Fork (Confl w Kaweah River Middle Fork to Marble Falls)

River & Stream

7553.410401,7553.410402,7553.410403,7553.410404,7553.410405  /  18030007
  • Alkalinity as CaCO3
    • A Source Unknown

16 Miles

2020

5A

Low



5

Kaweah River, Middle Fork (Confl w Kaweah River East Fork to Dome Creek)

River & Stream

55343023  /  18030007
  • Alkalinity as CaCO3
    • A Source Unknown

14 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

14 Miles

2020

5A

Low



5

Kaweah River, Upper (from North Fork to Kaweah Lake)

River & Stream

55341071  /  18030007
  • Alkalinity as CaCO3
    • A Source Unknown

3.5 Miles

2020

5A

Low



5

Kellogg Creek (in Delta Waterways, western portion)

River & Stream

6543.000301,6543.000303,6544.000000  / 
  • Indicator Bacteria
    • A Source Unknown

7.2 Miles

2022

5A

Low

  • Permethrin
    • A Source Unknown

7.2 Miles

2022

5B


2019
  • Salinity
    • A Source Unknown

7.2 Miles

2022

5A

Low

  • Toxicity
    • A Source Unknown

7.2 Miles

2022

5A

Low

  • pH
    • A Source Unknown

7.2 Miles

2022

5A

Low



5

Kelsey Creek (Lake County)

River & Stream

5513.520000,5513.550101,5513.550102,5513.550103  / 
  • Aluminum
    • A Source Unknown

24 Miles

2024

5A

Low



5

Kentucky Creek (Nevada County)

River & Stream

51731013  /  18020125
  • Iron
    • A Source Unknown

6 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

6 Miles

2014

5A

Low

  • pH
    • A Source Unknown

6 Miles

2014

5A

Low



5

Keswick Reservoir (portion downstream from Spring Creek)

Lake & Reservoir

52440013  /  18020112
  • Cadmium
    • A Source Unknown

92 Acres

1990

5A

Low

  • Copper
    • A Source Unknown

92 Acres

1990

5A

Low

  • Zinc
    • A Source Unknown

92 Acres

1990

5A

Low



5

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

River & Stream

7551.800000,7551.900000  /  18030012
  • Bifenthrin
    • A Source Unknown

37 Miles

2020

5A

Low

  • Boron
    • A Source Unknown

37 Miles

2020

5A

Low

  • Electrical Conductivity
    • A Source Unknown

37 Miles

2002

5A

Low

  • Molybdenum
    • A Source Unknown

37 Miles

2002

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

37 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

37 Miles

2020

5A

Low

  • Toxaphene
    • A Source Unknown

37 Miles

2002

5A

Low

  • Toxicity
    • A Source Unknown

37 Miles

2020

5A

Low

  • pH
    • A Source Unknown

37 Miles

2014

5A

Low



5

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

River & Stream

55180000  /  18030012
  • Alkalinity as CaCO3
    • A Source Unknown

62 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

62 Miles

2014

5A

Low

  • Lead
    • A Source Unknown

62 Miles

2020

5A

Low

  • Paraquat
    • A Source Unknown

62 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

62 Miles

2014

5A

Low



5

Kings River, Main Fork

River & Stream

55232010  /  18030010
  • Alkalinity as CaCO3
    • A Source Unknown

18 Miles

2020

5A

Low



5

Kings River, South Fork (Bubbs Creek to Grizzly Creek)

River & Stream

55234260  /  18030010
  • Alkalinity as CaCO3
    • A Source Unknown

12 Miles

2020

5A

Low



5

Kings River, Upper North Fork

River & Stream

55234167  /  18030010
  • Alkalinity as CaCO3
    • A Source Unknown

37 Miles

2020

5A

Low



5

Knights Landing Ridge Cut (Yolo County)

River & Stream

52021000  /  18020109
  • Oxygen, Dissolved
    • A Source Unknown

6.4 Miles

2010

5A

Low

  • Salinity
    • A Source Unknown

6.4 Miles

2010

5A

Low

  • Temperature, water
    • A Source Unknown

6.4 Miles

2024

5A

Low



5

Laguna Creek (Sacramento County)

River & Stream

5519.110000  / 
  • Benthic Community Effects
    • A Source Unknown

30 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

30 Miles

2020

5A

Low



5

Laguna Creek (tributary to Cosumnes River, Sacramento County)

River & Stream

53111000  /  18040005
  • Indicator Bacteria
    • A Source Unknown

25 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

25 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

25 Miles

2014

5A

Low



5

Lake Clementine (Placer County)

Lake & Reservoir

5514.510001  / 
  • Mercury
    • A Source Unknown

186 Acres

2020

5A

Low



5

Langworth Pipeline (Stanislaus County)

River & Stream

53530000  /  18040002
  • Oxygen, Dissolved
    • A Source Unknown

3.1 Miles

2014

5A

Low



5

Lassen Creek (Modoc County)

River & Stream

52710021  /  18020001
  • Benthic Community Effects
    • A Source Unknown

16 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

16 Miles

2014

5A

Low



5

Lateral Drain (from Rough and Ready Pump to Sycamore Slough)

River & Stream

52010000  /  18020104
  • Oxygen, Dissolved
    • A Source Unknown

0.68 Miles

2024

5A

Low



5

Levee Drain (Stanislaus County)

River & Stream

6535.500000  / 
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

0.9 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

0.9 Miles

2020

5A

Low



5

Liberty Cut (in Delta Waterways, northwestern portion)

River & Stream

5510.000000  / 
  • Boron
    • A Source Unknown

5.9 Miles

2024

5A

Low



5

Linda Creek

River & Stream

51921000  /  18020128
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

Low



5

Lindsey Slough (Solano County, in Delta Waterways, northwestern portion)

River & Stream

5510.000000  / 
  • Chlorpyrifos
    • A Source Unknown

6.3 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

6.3 Miles

2020

5A

Low



5

Little Backbone Creek, Lower

River & Stream

50620010  /  18020005
  • Acid Mine Drainage
    • A Source Unknown

1 Miles

1996

5A

Low

  • Cadmium
    • A Source Unknown

1 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

1 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

1 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.


5

Little Butte Creek (Butte County)

River & Stream

5521.300302  / 
  • Benzo[k]fluoranthene
    • A Source Unknown

10 Miles

2024

5A

Low

  • Dibenz[a,h]anthracene
    • A Source Unknown

10 Miles

2024

5A

Low

  • Indeno[1,2,3-cd]pyrene
    • A Source Unknown

10 Miles

2024

5A

Low



5

Little Chico Creek (Butte County)

River & Stream

52120012  /  18020105
  • pH
    • A Source Unknown

28 Miles

2020

5A

Low



5

Little Cow Creek (downstream from Afterthought Mine)

River & Stream

5507.330101,5507.330103,5507.330203,5507.330301,5508.100002  /  18020118
  • Benthic Community Effects
    • A Source Unknown

39 Miles

2020

5A

Low

  • Cadmium
    • A Source Unknown

39 Miles

1994

5A

Low

    Resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

39 Miles

1994

5A

Low

    Resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

39 Miles

1994

5A

Low

    Resource extraction sources are abandoned mines.


5

Little Deer Creek

River & Stream

51720012  /  18020126
  • Mercury
    • A Source Unknown

4.1 Miles

2006

5A

Low

  • pH
    • A Source Unknown

4.1 Miles

2014

5A

Low



5

Little Dry Creek, South Fork (Butte County)

River & Stream

5520.400001,5521.100103  / 
  • Aluminum
    • A Source Unknown

12 Miles

2024

5A

Low

  • Benzo(a)pyrene
    • A Source Unknown

12 Miles

2024

5A

Low

  • Benzo[b]fluoranthene
    • A Source Unknown

12 Miles

2024

5A

Low

  • Benzo[k]fluoranthene
    • A Source Unknown

12 Miles

2024

5A

Low

  • Chrysene (C1-C4)
    • A Source Unknown

12 Miles

2024

5A

Low

  • Dibenz[a,h]anthracene
    • A Source Unknown

12 Miles

2024

5A

Low

  • Indeno[1,2,3-cd]pyrene
    • A Source Unknown

12 Miles

2024

5A

Low

  • Iron
    • A Source Unknown

12 Miles

2024

5A

Low

  • Lead
    • A Source Unknown

12 Miles

2024

5A

Low

  • Mercury
    • A Source Unknown

12 Miles

2024

5A

Low



5

Little Grizzly Creek

River & Stream

51854031  /  18020122
  • Copper
    • A Source Unknown

9.7 Miles

1996

5A

Low



5

Little Panoche Creek

River & Stream

6541.200000,6542.410400  /  18040001
  • Toxicity
    • A Source Unknown

24 Miles

2014

5A

Low



5

Little Potato Slough (in Delta Waterways, central portion)

River & Stream

6544.000000  /  18040003
  • Toxicity
    • A Source Unknown

4.1 Miles

2014

5A

Low



5

Littlejohns Creek

River & Stream

53140000  /  18040002
  • Bifenthrin
    • A Source Unknown

70 Miles

2014

5A

Low

  • Chlorpyrifos
    • Agriculture

70 Miles

2010

5C


2026
  • Indicator Bacteria
    • A Source Unknown

70 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

70 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

70 Miles

2026

5A

Low

  • Specific Conductivity
    • A Source Unknown

70 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

70 Miles

2014

5A

Low



5

Live Oak Slough

River & Stream

52030000  /  18020106
  • Diazinon
    • Agriculture

8.4 Miles

2010

5C


2026
  • Oxygen, Dissolved
    • A Source Unknown

8.4 Miles

2010

5A

Low



5

Lone Tree Creek

River & Stream

53140000  /  18040002
  • Ammonia
    • A Source Unknown

26 Miles

1996

5A

Low

  • BOD, Biochemical oxygen demand
    • A Source Unknown

26 Miles

1996

5A

Low

  • Benthic Community Effects
    • A Source Unknown

26 Miles

2020

5A

Low

  • Bifenthrin
    • A Source Unknown

26 Miles

2014

5A

Low

  • Chlorpyrifos
    • Agriculture

26 Miles

2010

5C


2026
  • Indicator Bacteria
    • A Source Unknown

26 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

26 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

26 Miles

2026

5A

Low

  • Specific Conductivity
    • A Source Unknown

26 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

26 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

26 Miles

2010

5A

Low



5

Lone Willow Slough (Madera County)

River & Stream

54510000  /  18040001
  • Toxicity
    • A Source Unknown

20 Miles

2014

5A

Low



5

Long Meadow Creek

River & Stream

55234281  /  18030010
  • Oxygen, Dissolved
    • A Source Unknown

1.1 Miles

2020

5A

Low

  • pH
    • A Source Unknown

1.1 Miles

2014

5A

Low



5

Loon Lake

Lake & Reservoir

51444012  /  18020128
  • Mercury
    • A Source Unknown

992 Acres

2014

5A

Low



5

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

River & Stream

6541.200000,6542.420000  /  18040001
  • Boron
    • A Source Unknown

32 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

32 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

32 Miles

2014

5A

Low

  • Molybdenum
    • A Source Unknown

32 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

32 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

32 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

32 Miles

2014

5C


2024


5

Los Banos Reservoir

Lake & Reservoir

6541.200000,6542.410208,6542.420000  /  18040014
  • Mercury
    • A Source Unknown

479 Acres

2014

5A

Low



5

Los Gatos Creek (Fresno County)

River & Stream

55111011  /  18030012
  • Lead
    • A Source Unknown

49 Miles

2014

5A

Low

  • Selenium
    • A Source Unknown

49 Miles

2014

5A

Low



5

Los Vaqueros Reservoir

Lake & Reservoir

54300030  /  18040003
  • Mercury
    • A Source Unknown

1294 Acres

2014

5A

Low



5

Lower Blue Lake

Lake & Reservoir

51354020  /  18020116
  • Mercury
    • A Source Unknown

51 Acres

2014

5A

Low



5

Lower Young Lake (Tuolumne County)

Lake & Reservoir

6536.600303  / 
  • Alkalinity as CaCO3
    • A Source Unknown

27 Acres

2026

5A

Low



5

Lyell Canyon Fork (Tuolumne County)

River & Stream

6536.600101,6536.600102,6536.600104,6536.600201,6536.600202  / 
  • Alkalinity as CaCO3
    • A Source Unknown

14 Miles

2026

5A

Low

  • pH
    • A Source Unknown

14 Miles

2026

5A

Low



5

Maclure Creek (Tuolumne River)

River & Stream

6536.600104  / 
  • Alkalinity as CaCO3
    • A Source Unknown

2.3 Miles

2020

5A

Low

  • pH
    • A Source Unknown

2.3 Miles

2026

5A

Low



5

Main Drain (Kern County)

River & Stream

55870000  /  18030012
  • Boron
    • A Source Unknown

31 Miles

2014

5A

Low

  • Diuron
    • Agriculture

31 Miles

2014

5C


2018
  • Oxygen, Dissolved
    • A Source Unknown

31 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

31 Miles

2014

5A

Low



5

Main Drainage Canal

River & Stream

52040000  /  18020105
  • Diazinon
    • Agriculture

9.2 Miles

2006

5C


2026
  • Oxygen, Dissolved
    • A Source Unknown

9.2 Miles

2010

5A

Low



5

Manning Creek (Lake County)

River & Stream

5513.550304  / 
  • Aluminum
    • A Source Unknown

5.8 Miles

2020

5A

Low



5

Marsh Creek (Dunn Creek to Marsh Creek Reservoir)

River & Stream

54300023  /  18040003
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

12 Miles

2006

5A

Low

    All resource extraction sources are abandoned mines.
  • Metals
    • A Source Unknown

12 Miles

1994

5A

Low

    All resource extraction sources are abandoned mines.
  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2020

5A

Low



5

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

River & Stream

6544.000000  /  18040003
  • Benthic Community Effects
    • A Source Unknown

13 Miles

2020

5A

Low

  • Bifenthrin
    • A Source Unknown

13 Miles

2010

5A

Low

  • Cyfluthrin
    • A Source Unknown

13 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

13 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

Low

  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

13 Miles

1994

5B


2011
  • Permethrin
    • A Source Unknown

13 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

13 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

Low



5

Marsh Creek Reservoir

Lake & Reservoir

54300023  /  18040003
  • Mercury
    • A Source Unknown

53 Acres

1988

5A

Low



5

McClure Reservoir (Mariposa County)

Lake & Reservoir

53722000  /  18040008
  • Mercury
    • A Source Unknown

5691 Acres

2010

5A

Low



5

McGaugh Slough (Lake County)

River & Stream

51355033  /  18020116
  • Oxygen, Dissolved
    • A Source Unknown

6.1 Miles

2014

5A

Low



5

McSwain Lake

Lake & Reservoir

6537.100002  /  18040008
  • Mercury
    • A Source Unknown

296 Acres

2014

5A

Low



5

Meadows Slough (Sacramento County, in Delta Waterways, eastern portion)

Lake & Reservoir

5510.000000  /  18020109
  • Mercury
    • A Source Unknown

15 Acres

2014

5A

Low



5

Mendota Pool

Wetland, Freshwater

6541.200000,6545.100000,7551.200000  /  18030012
  • Mercury
    • A Source Unknown

4749 Acres

2010

5A

Low

  • Selenium
    • A Source Unknown

4749 Acres

2002

5A

Low

    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 (Mariposa and Madera Counties)

River & Stream

6537.500201, 6537.500202, 6537.500301, 6537.600101, 6537.600102, 6537.600103, 6537.600201, 6537.600301, 6537.600404  / 
  • Alkalinity as CaCO3
    • A Source Unknown

26 Miles

2020

5A

Low



5

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

River & Stream

53550000  /  18040001
  • Bifenthrin
    • A Source Unknown

55 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

55 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

55 Miles

2006

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

55 Miles

2010

5A

Low

  • Specific Conductivity
    • A Source Unknown

55 Miles

2010

5A

Low

  • Temperature, water
    • A Source Unknown

55 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

55 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

55 Miles

2010

5A

Low



5

Merced River, Upper

River & Stream

6537.220000,6537.300401,6537.300403,6537.300404,6537.300501,6537.300503,6537.300601,6537.500301,6537.500304,6537.500402,(Total Count: 11)  /  18040008
  • Alkalinity as CaCO3
    • A Source Unknown

43 Miles

2020

5A

Low



5

Merle Collins Lake

Lake & Reservoir

51713032  /  18020124
  • Mercury
    • A Source Unknown

761 Acres

2014

5A

Low



5

Middle Creek (Lake County)

River & Stream

51354040  /  18020116
  • Oxygen, Dissolved
    • A Source Unknown

9 Miles

2014

5A

Low



5

Middle Fork Consumnes River (El Dorado County)

River & Stream

6532.230800,6532.240101,6532.240103,6532.240104,6532.240105,6532.240300,6532.240401,6532.240403,6532.240501,6532.240502,(Total Count: 11)  / 
  • Oxygen, Dissolved
    • A Source Unknown

44 Miles

2020

5A

Low



5

Middle River (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Mercury
    • A Source Unknown

16 Miles

2020

5A

Low



5

Middle River (in Delta Waterways, southern portion)

River & Stream

54400000  /  18040003
  • Low Dissolved Oxygen
    • A Source Unknown

12 Miles

2002

5A

Low



5

Mile Long Pond (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • A Source Unknown

90 Acres

2010

5A

Low

  • Toxicity
    • A Source Unknown

90 Acres

2014

5A

Low



5

Miles Creek (Merced County)

River & Stream

6535.800000  /  18040001
  • Bifenthrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

12 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

12 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

12 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

12 Miles

2014

5A

Low



5

Mill Creek (Fresno County)

River & Stream

55240042  /  18030007
  • Toxicity
    • A Source Unknown

29 Miles

2014

5A

Low



5

Mill Creek (Tehama County)

River & Stream

5504.200001,5504.200002,5509.420101,5509.420102,5509.420103,5509.420201,5509.420202,5509.420301,5509.420302,5509.420303  /  18020119
  • Aluminum
    • A Source Unknown

57 Miles

2020

5A

Low

  • Arsenic
    • A Source Unknown

57 Miles

2020

5A

Low

  • Boron
    • A Source Unknown

57 Miles

2020

5A

Low



5

Mill Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Ammonia (Unionized)
    • A Source Unknown

28 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

28 Miles

2014

5A

Low



5

Millerton Lake

Lake & Reservoir

54012000  /  18040006
  • Mercury
    • A Source Unknown

4398 Acres

2010

5A

Low

  • pH
    • A Source Unknown

4398 Acres

2020

5A

Low



5

Miners Ravine (Placer County)

River & Stream

51424010  /  18020111
  • Indicator Bacteria
    • A Source Unknown

9.4 Miles

2020

5A

Low



5

Modesto Reservoir

Lake & Reservoir

53540011  /  18040002
  • Mercury
    • A Source Unknown

1816 Acres

2010

5A

Low



5

Mokelumne River, Lower (San Joaquin County, outside Delta Waterways)

River & Stream

6531.200000  / 
  • Copper
    • A Source Unknown

42 Miles

2022

5A

Low

  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

42 Miles

2022

5B


2011
  • Toxicity
    • A Source Unknown

42 Miles

2022

5A

Low

  • Zinc
    • A Source Unknown

42 Miles

2022

5A

Low



5

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

River & Stream

6531.200000,6544.000000  / 
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

14 Miles

2022

5B


2011
  • Toxicity
    • A Source Unknown

14 Miles

2022

5A

Low



5

Moon Lake

Lake & Reservoir

52653041  /  18020002
  • Mercury
    • A Source Unknown

2647 Acres

2014

5A

Low



5

Mormon Slough (San Joaquin County; outside Delta Boundary)

River & Stream

6531.300000,6531.400000  /  18040002
  • Indicator Bacteria
    • A Source Unknown

9 Miles

2014

5A

Low



5

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

River & Stream

6531.300000  /  18040002
  • Bifenthrin
    • A Source Unknown

13 Miles

2014

5A

Low

  • Chlorpyrifos
    • Agriculture
    • Domestic Wastewater Lagoon

13 Miles

2010

5C


2026
  • Cyhalothrin, Lambda
    • A Source Unknown

13 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

13 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

Low

  • pH
    • A Source Unknown

13 Miles

2010

5A

Low



5

Mormon Slough (in Delta Waterways, eastern portion)

River & Stream

6544.000000  /  18040002
  • Indicator Bacteria
    • A Source Unknown

1.1 Miles

2014

5B


2008
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

1.1 Miles

2002

5A

Low



5

Morrison Creek

River & Stream

51911000  /  18020109
  • Benthic Community Effects
    • A Source Unknown

26 Miles

2020

5A

Low

  • Diazinon
    • Urban Runoff/Storm Sewers

26 Miles

1998

5B


2004
  • Oxygen, Dissolved
    • A Source Unknown

26 Miles

2020

5A

Low

  • Pentachlorophenol (PCP)
    • A Source Unknown

26 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

26 Miles

2010

5B


2019
  • Toxicity
    • A Source Unknown

26 Miles

2014

5A

Low



5

Mosher Creek (San Joaquin County)

River & Stream

6531.200000,6544.000000  / 
  • Oxygen, Dissolved
    • A Source Unknown

19 Miles

2020

5A

Low



5

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

River & Stream

6544.000000  /  18040005
  • Indicator Bacteria
    • A Source Unknown

1.9 Miles

2014

5B


2008
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5B


2011
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

1.9 Miles

2006

5A

Low



5

Mountain House Creek (in Delta Waterways; southern portion)

River & Stream

6544.000000,6575.000000  /  18040003
  • Salinity
    • A Source Unknown

3.7 Miles

2010

5A

Low



5

Mud Creek (Butte County)

River & Stream

5504.200002,5509.150001  /  18020103
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

Low



5

Mud Slough, North (downstream of San Luis Drain)

River & Stream

6541.200000  /  18040001
  • Boron
    • A Source Unknown

5.2 Miles

1996

5A

Low

  • Electrical Conductivity
    • A Source Unknown

5.2 Miles

1998

5A

Low

  • Pesticides
    • A Source Unknown

5.2 Miles

1996

5A

Low

  • Selenium
    • A Source Unknown

5.2 Miles

1996

5B


2002
  • Toxicity
    • A Source Unknown

5.2 Miles

2014

5A

Low



5

Mud Slough, North (upstream of San Luis Drain)

River & Stream

6541.200000  /  18040001
  • Boron
    • A Source Unknown

4.6 Miles

1996

5A

Low

  • Electrical Conductivity
    • A Source Unknown

4.6 Miles

1998

5A

Low

  • Indicator Bacteria
    • A Source Unknown

4.6 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

4.6 Miles

2010

5A

Low

  • Pesticides
    • A Source Unknown

4.6 Miles

1996

5A

Low

  • Toxicity
    • A Source Unknown

4.6 Miles

2014

5C


2024


5

Mustang Creek (Merced County)

River & Stream

6535.600000  /  18040002
  • Bifenthrin
    • A Source Unknown

4.6 Miles

2014

5A

Low

  • Chlorpyrifos
    • Agriculture

4.6 Miles

2010

5C


2026
  • Copper
    • A Source Unknown

4.6 Miles

2014

5A

Low

  • Diazinon
    • Agriculture

4.6 Miles

2010

5C


2026
  • Indicator Bacteria
    • A Source Unknown

4.6 Miles

2014

5A

Low

  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

4.6 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

4.6 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

4.6 Miles

2020

5A

Low

  • Simazine
    • Agriculture

4.6 Miles

2010

5C


2018
  • Toxicity
    • A Source Unknown

4.6 Miles

2014

5A

Low

  • cis-permethrin
    • A Source Unknown

4.6 Miles

2010

5C


2037


5

Natoma, Lake

Lake & Reservoir

51921000  /  18020111
  • Indicator Bacteria
    • A Source Unknown

524 Acres

2020

5A

Low

  • Mercury
    • A Source Unknown

524 Acres

2006

5A

Low



5

Natomas Cross Canal (Sutter County)

River & Stream

5519.220000  /  18020109
  • Mercury
    • A Source Unknown

6.1 Miles

2010

5A

Low



5

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

River & Stream

5519.210000  /  18020109
  • Indicator Bacteria
    • A Source Unknown

3.6 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

3.6 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

3.6 Miles

2020

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3.6 Miles

1996

5A

Low

    The agricultural source is from aerial deposition.
  • Trash
    • A Source Unknown

3.6 Miles

2020

5A

Low



5

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

River & Stream

5519.210000  /  18020111
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

12 Miles

1996

5A

Low



5

New Bullards Bar Reservoir

Lake & Reservoir

51751011  /  18020125
  • Mercury
    • A Source Unknown

4055 Acres

2010

5A

Low



5

New Hogan Lake (Calaveras County)

Lake & Reservoir

6533.100001,6533.100003  /  18040011
  • Mercury
    • A Source Unknown

2275 Acres

2010

5A

Low



5

New Melones Reservoir

Lake & Reservoir

53421010  /  18040010
  • Mercury
    • A Source Unknown

11047 Acres

2010

5A

Low



5

Newman Wasteway

River & Stream

6535.700000,6541.100000,6541.200000  /  18040001
  • Indicator Bacteria
    • A Source Unknown

8.2 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

8.2 Miles

2010

5A

Low



5

North Canyon Creek (El Dorado County)

River & Stream

51432024  /  18020129
  • Indicator Bacteria
    • A Source Unknown

3.2 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

3.2 Miles

2014

5A

Low



5

North Fork Cache Creek (Lake County)

River & Stream

5513.320202,5513.400102,5513.400103,5513.400106,5513.400203,5513.400302,5513.400402,5513.400403  / 
  • Benthic Community Effects
    • A Source Unknown

39 Miles

2020

5A

Low

  • Boron
    • A Source Unknown

39 Miles

2020

5A

Low



5

North Honcut Creek (Butte County)

River & Stream

5515.400000,5517.600201,5517.600202,5517.600400  / 
  • Copper
    • A Source Unknown

25 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

25 Miles

2024

5A

Low



5

ONeill Forebay

Lake & Reservoir

54231032  /  18040001
  • Mercury
    • A Source Unknown

2246 Acres

2010

5A

Low



5

Old River (San Joaquin River to Clifton Court Forebay; in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Indicator Bacteria
    • A Source Unknown

20 Miles

2020

5A

Low

  • Manganese
    • A Source Unknown

20 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

20 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

20 Miles

2020

5A

Low



5

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

River & Stream

6544.000000  /  18040003
  • Electrical Conductivity
    • A Source Unknown

23 Miles

2010

5A

Low

  • Low Dissolved Oxygen
    • A Source Unknown
    • Hydromodification

23 Miles

2002

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

23 Miles

2020

5A

Low

    This waterbody segment is only impaired for dissolved oxygen from north of the Delta Mendota Canal to Victoria Canal, not the full segment of Old River (San Joaquin River to Delta-Mendota Canal; in Delta Waterways, southern portion). The dissolved oxygen data driving the listing was collected at a single monitoring station on Old River north of the Delta-Mendota Canal.
  • Total Dissolved Solids
    • A Source Unknown

23 Miles

2010

5A

Low



5

Oregon Creek (Yuba and Sierra Counties)

River & Stream

5517.410101,5517.410102,5517.410103,5517.410201  /  18020125
  • Copper
    • A Source Unknown

20 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

20 Miles

2014

5A

Low



5

Orestimba Creek, east of the Delta Mendota Canal (Stanislaus County)

River & Stream

6535.500000,6541.100000  / 
  • Azinphos-methyl (Guthion)
    • A Source Unknown

14 Miles

2026

5A

Low

  • Benthic Community Effects
    • A Source Unknown

14 Miles

2026

5A

Low

  • Bifenthrin
    • A Source Unknown

14 Miles

2026

5A

Low

  • Chlorpyrifos
    • Agriculture

14 Miles

2026

5C


2026
  • Chromium
    • A Source Unknown

14 Miles

2026

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

14 Miles

2026

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

14 Miles

2026

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

14 Miles

2026

5A

Low

  • Diazinon
    • A Source Unknown

14 Miles

2026

5B


2017
  • Dieldrin
    • A Source Unknown

14 Miles

2026

5A

Low

  • Esfenvalerate/Fenvalerate
    • A Source Unknown

14 Miles

2026

5A

Low

  • Imidacloprid
    • A Source Unknown

14 Miles

2026

5A

Low

  • Indicator Bacteria
    • A Source Unknown

14 Miles

2026

5A

Low

  • Nickel
    • A Source Unknown

14 Miles

2026

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2026

5A

Low

  • Pyrethroids
    • A Source Unknown

14 Miles

2026

5A

Low

  • Specific Conductivity
    • A Source Unknown

14 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

14 Miles

2026

5C


2024
  • Zinc
    • A Source Unknown

14 Miles

2026

5A

Low



5

Oroville Wildlife Area Fishing Pond (Butte County)

Lake & Reservoir

5515.400000  /  18020106
  • Toxicity
    • A Source Unknown

2.9 Acres

2014

5A

Low



5

Oroville, Lake

Lake & Reservoir

51812000  /  18020124
  • Mercury
    • A Source Unknown

8468 Acres

2010

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

8468 Acres

2010

5A

Low



5

Outside Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

Low



5

Pacific Heights Pond, Lower (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Toxicity
    • A Source Unknown

10 Acres

2014

5A

Low



5

Packwood Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

19 Miles

2014

5A

Low



5

Panoche Creek (Silver Creek to Belmont Avenue)

River & Stream

7551.120000  /  18040001
  • Mercury
    • A Source Unknown

16 Miles

1992

5A

Low

    All resource extraction sources are abandoned mines.
  • Sedimentation/Siltation
    • A Source Unknown

16 Miles

1996

5A

Low

  • Selenium
    • A Source Unknown

16 Miles

1998

5A

Low

  • Toxicity
    • A Source Unknown

16 Miles

2014

5A

Low



5

Paradise Cut (in Delta Waterways, southern portion)

River & Stream

6544.000000  /  18040003
  • Total Dissolved Solids
    • A Source Unknown

7.8 Miles

2020

5A

Low



5

Pardee Reservoir

Lake & Reservoir

6531.300000,6532.400603,6532.600901  /  18040005
  • Mercury
    • A Source Unknown

1556 Acres

2010

5A

Low



5

Pilot Creek (El Dorado County)

River & Stream

5514.430303,5514.430401,5514.430402  / 
  • Alkalinity as CaCO3
    • A Source Unknown

19 Miles

2020

5A

Low



5

Pine Creek (Butte County)

River & Stream

50420070  /  18020103
  • Chlorpyrifos
    • Agriculture

11 Miles

2010

5C


2026
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low



5

Pine Creek (Butte and Tehama County)

River & Stream

5504.200002,5509.160101,5509.160102  / 
  • Bifenthrin
    • A Source Unknown

33 Miles

2020

5A

Low

  • Chlorpyrifos
    • A Source Unknown

33 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

33 Miles

2020

5A

Low

  • Metolachlor
    • A Source Unknown

33 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

33 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

33 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

33 Miles

2024

5A

Low



5

Pine Flat Reservoir

Lake & Reservoir

55232010  /  18030010
  • Alkalinity as CaCO3
    • A Source Unknown

5334 Acres

2014

5A

Low

  • Mercury
    • A Source Unknown

5334 Acres

2010

5A

Low



5

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

River & Stream

5506.100000,5506.200603,5506.200604,5526.140101,5526.140201,5526.140202,5526.140301,5526.140302,5526.150102,5526.150201,(Total Count: 42)  /  18020003
  • Aluminum
    • A Source Unknown

182 Miles

2020

5A

Low

  • Iron
    • A Source Unknown

182 Miles

2020

5A

Low

  • Nutrients
    • A Source Unknown

182 Miles

1996

5A

Low

  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

182 Miles

1996

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

182 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

182 Miles

2014

5A

Low



5

Pit River, North Fork

River & Stream

5526.520101,5526.520102,5526.520103,5526.520105,5526.520106,5526.520108,5526.520303,5526.520902  /  18020002
  • Aluminum
    • A Source Unknown

22 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

22 Miles

2020

5A

Low

  • pH
    • A Source Unknown

22 Miles

2010

5A

Low



5

Pit River, South Fork

River & Stream

5526.520403, 5526.520503, 5526.520902, 5526.530203, 5526.530204, 5526.530205  /  18020002
  • Aluminum
    • A Source Unknown

37 Miles

2020

5A

Low

  • Iron
    • A Source Unknown

37 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

37 Miles

2020

5A

Low

  • pH
    • A Source Unknown

37 Miles

2010

5A

Low



5

Pixley Slough (San Joaquin County; outside Delta Waterways)

River & Stream

6531.200000  /  18040005
  • Chlorpyrifos
    • Agriculture

15 Miles

2010

5C


2026
  • Diazinon
    • Agriculture

15 Miles

2010

5C


2026
  • Disulfoton
    • A Source Unknown

15 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

15 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

15 Miles

2026

5A

Low



5

Pleasant Grove Creek

River & Stream

5519.220000  /  18020111
  • Benthic Community Effects
    • A Source Unknown

20 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

20 Miles

2014

5B


2019
    This listing applies only to the portion of Pleasant Grove Creek upstream of Fiddyment Road.
  • Cyfluthrin
    • A Source Unknown

20 Miles

2014

5B


2019
  • Cypermethrin
    • A Source Unknown

20 Miles

2014

5B


2019
    This listing only applies to the portion of Pleasant Grove Creek upstream of Fiddyment Road.
  • Fipronil
    • A Source Unknown

20 Miles

2020

5A

Low

  • Imidacloprid
    • A Source Unknown

20 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

20 Miles

2010

5A

Low

    This listing is for Pleasant Grove Creek upstream of Fiddyment Road.
  • Pyrethroids
    • A Source Unknown

20 Miles

2010

5B


2019
    This listing is for Pleasant Grove Creek upstream of Fiddyment Road.
  • Toxicity
    • A Source Unknown

20 Miles

2014

5A

Low



5

Pleasant Grove Creek, South Branch

River & Stream

51922000  /  18020111
  • Benthic Community Effects
    • A Source Unknown

7.1 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

7.1 Miles

2014

5B


2019
  • Cyfluthrin
    • A Source Unknown

7.1 Miles

2014

5B


2019
  • Cypermethrin
    • A Source Unknown

7.1 Miles

2014

5B


2019
  • Deltamethrin
    • A Source Unknown

7.1 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

7.1 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

7.1 Miles

2010

5B


2019
  • Toxicity
    • A Source Unknown

7.1 Miles

2014

5A

Low



5

Pleasant Grove Creek, unnamed northern tributary (from Greywood Circle to confluence with Pleasant Grove Creek)

River & Stream

51922000  /  18020109
  • Benthic Community Effects
    • A Source Unknown

1.1 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

1.1 Miles

2014

5B


2019
  • Cyfluthrin
    • A Source Unknown

1.1 Miles

2014

5B


2019
  • Cypermethrin
    • A Source Unknown

1.1 Miles

2014

5B


2019
  • Fipronil
    • A Source Unknown

1.1 Miles

2020

5A

Low

  • Fipronil Sulfone
    • A Source Unknown

1.1 Miles

2020

5A

Low

  • Malathion
    • A Source Unknown

1.1 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

1.1 Miles

2020

5B


2019


5

Pleasant Grove Creek, unnamed northern tributary (from Mt Tamalpais Dr to confluence with Pleasant Grove Creek)

River & Stream

51922000  /  18020109
  • Benthic Community Effects
    • A Source Unknown

0.81 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

0.81 Miles

2014

5B


2019
  • Cyfluthrin
    • A Source Unknown

0.81 Miles

2014

5B


2019
  • Cyhalothrin, Lambda
    • A Source Unknown

0.81 Miles

2014

5B


2019
  • Cypermethrin
    • A Source Unknown

0.81 Miles

2014

5B


2019
  • Fipronil
    • A Source Unknown

0.81 Miles

2020

5A

Low

  • Fipronil Sulfone
    • A Source Unknown

0.81 Miles

2020

5A

Low

  • Imidacloprid
    • A Source Unknown

0.81 Miles

2020

5A

Low

  • Permethrin
    • A Source Unknown

0.81 Miles

2014

5B


2019
  • Pyrethroids
    • A Source Unknown

0.81 Miles

2020

5B


2019


5

Poorman Creek (Nevada County)

River & Stream

51732010  /  18020125
  • Copper
    • A Source Unknown

14 Miles

2014

5A

Low



5

Powell Slough (Colusa County)

River & Stream

5520.100002,5520.210000  / 
  • Aluminum
    • A Source Unknown

4.5 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

4.5 Miles

2020

5A

Low



5

Putah Creek (Solano Lake to Delta Boundary)

River & Stream

5510.000000,5511.100000,5511.200000  /  18020109
  • Mercury
    • A Source Unknown
    • Resource Extraction

21 Miles

2002

5A

Low

    All resource extraction sources are abandoned mines.


5

Ramona Lake

Lake & Reservoir

54110000  /  18040002
  • Ammonia
    • A Source Unknown

18 Acres

2026

5A

Low

  • Boron
    • A Source Unknown

18 Acres

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

18 Acres

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

18 Acres

2014

5A

Low

  • Toxicity
    • A Source Unknown

18 Acres

2014

5C


2024
  • pH
    • A Source Unknown

18 Acres

2014

5A

Low



5

Ramona Lake (Fresno County)

Lake & Reservoir

54040018  /  18040006
  • Indicator Bacteria
    • A Source Unknown

29 Acres

2014

5A

Low

  • Toxicity
    • A Source Unknown

29 Acres

2014

5A

Low



5

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

River & Stream

53260050  /  18040012
  • Indicator Bacteria
    • A Source Unknown

0.89 Miles

2014

5A

Low



5

Rice Creek, North Arm

River & Stream

5518.440101,5518.440103  /  18020121
  • Selenium
    • A Source Unknown

11 Miles

2020

5A

Low



5

Robinsons Riffle Pond (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • A Source Unknown

8.1 Acres

2010

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

8.1 Acres

2010

5A

Low



5

Rock Creek (Nevada County)

River & Stream

51732033  /  18020125
  • pH
    • A Source Unknown

8.8 Miles

2014

5A

Low



5

Rock Creek (Placer County)

River & Stream

51422011  /  18020127
  • Indicator Bacteria
    • A Source Unknown

3.9 Miles

2014

5A

Low



5

Rock Creek (Stanislaus County)

River & Stream

6531.400000,6570.100006,6570.200003  / 
  • Indicator Bacteria
    • A Source Unknown

21 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

21 Miles

2020

5A

Low



5

Rodman Slough (Lake County)

River & Stream

5513.520000, 5513.540402  / 
  • Oxygen, Dissolved
    • A Source Unknown

1.4 Miles

2020

5A

Low

  • pH
    • A Source Unknown

1.4 Miles

2020

5A

Low



5

Rollins Reservoir

Lake & Reservoir

51634033  /  18020126
  • Mercury
    • A Source Unknown

777 Acres

2002

5A

Low



5

Rose Creek (Tuolumne County)

River & Stream

6534.220101,6534.220105  /  18040010
  • Indicator Bacteria
    • A Source Unknown

17 Miles

2014

5A

Low



5

Rumsey Slough (Lake County)

River & Stream

5513.520000, 5513.550304  / 
  • Oxygen, Dissolved
    • A Source Unknown

1.7 Miles

2024

5A

Low



5

Rush Creek (Modoc County)

River & Stream

52664031  /  18020002
  • pH
    • A Source Unknown

10 Miles

2010

5A

Low



5

Sacramento City Marina (part of Delta Waterways (northern portion))

Estuary

51911000  /  18020109
  • pH
    • A Source Unknown

20 Acres

2014

5A

Low



5

Sacramento River (Keswick Dam to Cottonwood Creek)

River & Stream

52440014  /  18020102
  • Temperature, water
    • A Source Unknown

29 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

29 Miles

2014

5A

Low



5

Sacramento River ( Cottonwood Creek to Red Bluff)

River & Stream

5504.200001,5504.200002,5508.100001,5508.100002  /  18020103
  • Mercury
    • A Source Unknown

31 Miles

1800

5A

Low

  • Temperature, water
    • A Source Unknown

31 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

31 Miles

2014

5A

Low



5

Sacramento River ( Red Bluff to Knights Landing)

River & Stream

5504.200001,5504.200002,5520.100001,5520.100002,5520.400001,5520.400002  /  18020104
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

149 Miles

2010

5A

Low

  • Dieldrin
    • A Source Unknown

149 Miles

2010

5A

Low

  • Mercury
    • A Source Unknown

149 Miles

1992

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

149 Miles

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

149 Miles

2010

5A

Low

  • Temperature, water
    • A Source Unknown

149 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

149 Miles

2014

5A

Low



5

Sacramento River (Knights Landing to the Delta)

River & Stream

51000000  /  18020109
  • Chlordane
    • A Source Unknown

33 Miles

2010

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

33 Miles

2010

5A

Low

  • Dieldrin
    • A Source Unknown

33 Miles

2010

5A

Low

  • Mercury
    • A Source Unknown

33 Miles

2002

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

33 Miles

2010

5A

Low

  • Temperature, water
    • A Source Unknown

33 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

33 Miles

2014

5A

Low



5

Sacramento River (in Delta Waterways, northern and western portions)

River & Stream

5510.000000  / 
  • Arsenic
    • A Source Unknown

72 Miles

2020

5A

Low

  • Chlordane
    • A Source Unknown

72 Miles

2020

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

72 Miles

2020

5A

Low

  • Dieldrin
    • A Source Unknown

72 Miles

2020

5A

Low

  • Fipronil
    • A Source Unknown

72 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

72 Miles

2020

5A

Low

  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

72 Miles

2020

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

72 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

72 Miles

2020

5A

Low

  • Temperature, water
    • A Source Unknown

72 Miles

2020

5A

Low



5

Sacramento Slough

River & Stream

51922000  /  18020106
  • Mercury
    • A Source Unknown

1.6 Miles

1998

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

1.6 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

1.6 Miles

2014

5A

Low



5

Salado Creek (Stanislaus County)

River & Stream

54210031  /  18040014
  • Indicator Bacteria
    • A Source Unknown

9.6 Miles

2014

5A

Low

  • Specific Conductivity
    • A Source Unknown

9.6 Miles

2020

5A

Low

  • Zinc
    • A Source Unknown

9.6 Miles

2010

5A

Low



5

Salt Slough (Mud Slough to Sand Dam, Merced County)

River & Stream

54120000  /  18040001
  • Benthic Community Effects
    • A Source Unknown

4.5 Miles

2026

5A

Low

  • Bifenthrin
    • A Source Unknown

4.5 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

4.5 Miles

2014

5C


2026
  • Clothianidin
    • A Source Unknown

4.5 Miles

2026

5A

Low

  • Diuron
    • A Source Unknown

4.5 Miles

2020

5C


2035
  • Imidacloprid
    • A Source Unknown

4.5 Miles

2026

5A

Low

  • Malathion
    • A Source Unknown

4.5 Miles

2014

5A

Low

  • Oxyfluorfen
    • A Source Unknown

4.5 Miles

2026

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

4.5 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

4.5 Miles

2026

5A

Low

  • Toxicity
    • Agriculture

4.5 Miles

2014

5C


2024


5

Salt Slough (upstream from confluence with San Joaquin River)

River & Stream

6541.200000  /  18040001
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2026

5A

Low

  • Chlorpyrifos
    • A Source Unknown

11 Miles

1998

5C


2026
  • Electrical Conductivity
    • A Source Unknown

11 Miles

1998

5A

Low

  • Malathion
    • A Source Unknown

11 Miles

2010

5A

Low

  • Mercury
    • A Source Unknown

11 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

11 Miles

2014

5C


2024


5

San Carlos Creek (downstream of New Idria Mine)

River & Stream

55911085  /  18040014
  • Mercury
    • A Source Unknown

5.3 Miles

1998

5A

Low

    All resource extraction sources are abandoned mines.


5

San Joaquin River ( Mendota Pool to Bear Creek)

River & Stream

54110000  /  18040001
  • Specific Conductivity
    • A Source Unknown

69 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

69 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

69 Miles

2010

5A

Low



5

San Joaquin River (Bear Creek to Mud Slough)

River & Stream

54120000  /  18040001
  • Arsenic
    • A Source Unknown

14 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

14 Miles

2014

5A

Low

  • Boron
    • A Source Unknown

14 Miles

2006

5A

Low

  • Electrical Conductivity
    • A Source Unknown

14 Miles

2006

5A

Low

  • Indicator Bacteria
    • A Source Unknown

14 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

14 Miles

2006

5A

Low

  • Pyrethroids
    • A Source Unknown

14 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

14 Miles

2026

5A

Low

  • Temperature, water
    • A Source Unknown

14 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

14 Miles

2014

5C


2024


5

San Joaquin River ( Mud Slough to Merced River)

River & Stream

54110000  /  18040001
  • Boron
    • A Source Unknown

3 Miles

1996

5A

Low

  • Chlorpyrifos
    • A Source Unknown

3 Miles

2006

5B


2007
  • Diazinon
    • A Source Unknown

3 Miles

2006

5B


2007
  • Electrical Conductivity
    • A Source Unknown

3 Miles

2006

5A

Low

  • Indicator Bacteria
    • A Source Unknown

3 Miles

2014

5A

Low

  • Specific Conductivity
    • A Source Unknown

3 Miles

2026

5A

Low

  • Temperature, water
    • A Source Unknown

3 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

3 Miles

2014

5A

Low



5

San Joaquin River ( Merced River to Tuolumne River)

River & Stream

54110000  /  18040001
  • Boron
    • A Source Unknown

34 Miles

2002

5B


2007
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

34 Miles

2010

5A

Low

  • Electrical Conductivity
    • A Source Unknown

34 Miles

1998

5A

Low

  • Specific Conductivity
    • A Source Unknown

34 Miles

2014

5B


2018
  • Temperature, water
    • A Source Unknown

34 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

34 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

34 Miles

2010

5A

Low

  • alpha.-BHC (Benzenehexachloride or alpha-HCH)
    • A Source Unknown

34 Miles

2010

5A

Low



5

San Joaquin River (Friant Dam to Mendota Pool)

River & Stream

54510000  /  18040006
  • Benthic Community Effects
    • A Source Unknown

62 Miles

2026

5A

Low

  • Invasive Species
    • A Source Unknown

62 Miles

2006

5A

Low

  • Temperature, water
    • A Source Unknown

62 Miles

2014

5A

Low



5

San Joaquin River (Stanislaus River to Delta Boundary)

River & Stream

54400000  /  18040002
  • Imidacloprid
    • A Source Unknown

2.6 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

2.6 Miles

2006

5A

Low

  • Specific Conductivity
    • A Source Unknown

2.6 Miles

2014

5B


2007
  • Temperature, water
    • A Source Unknown

2.6 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

2.6 Miles

2014

5A

Low



5

San Joaquin River (Tuolumne River to Stanislaus River)

River & Stream

6535.300000,6535.500000,6541.100000  /  18040002
  • Electrical Conductivity
    • A Source Unknown

8.9 Miles

1998

5A

Low

  • Group A Pesticides
    • A Source Unknown

8.9 Miles

1994

5A

Low

  • Mercury
    • A Source Unknown

8.9 Miles

2006

5A

Low

  • Specific Conductivity
    • A Source Unknown

8.9 Miles

2026

5B


2007
  • Temperature, water
    • A Source Unknown

8.9 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

8.9 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

8.9 Miles

2010

5A

Low



5

San Joaquin River (in Delta Waterways, southern portion)

River & Stream

6544.000000  / 
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

31 Miles

2026

5A

Low

  • Temperature, water
    • A Source Unknown

31 Miles

2020

5A

Low



5

San Joaquin River (in Delta Waterways, western and central portions to Stockton Ship Channel)

River & Stream

5510.000000, 6544.000000  / 
  • Arsenic
    • A Source Unknown

28 Miles

2020

5A

Low

  • Chlordane
    • A Source Unknown

28 Miles

2020

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

28 Miles

2026

5A

Low

  • Dieldrin
    • A Source Unknown

28 Miles

2020

5A

Low

  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

28 Miles

2026

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

28 Miles

2020

5A

Low

  • Temperature, water
    • A Source Unknown

28 Miles

2020

5A

Low



5

San Luis Canal (Merced County)

River & Stream

6541.200000  / 
  • Boron
    • A Source Unknown

5.7 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown

5.7 Miles

2020

5A

Low

  • pH
    • A Source Unknown

5.7 Miles

2026

5A

Low



5

San Luis Reservoir

Lake & Reservoir

54232010  /  18040014
  • Chlordane
    • A Source Unknown

12970 Acres

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

12970 Acres

2026

5A

Low

  • Dieldrin
    • A Source Unknown

12970 Acres

2014

5A

Low

  • Mercury
    • A Source Unknown

12970 Acres

2010

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

12970 Acres

2014

5A

Low

  • pH
    • A Source Unknown

12970 Acres

2020

5A

Low



5

Sand Creek (Colusa County)

River & Stream

5520.210000  /  18020104
  • Oxygen, Dissolved
    • A Source Unknown

20 Miles

2010

5A

Low



5

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

River & Stream

6544.000000  /  18040003
  • Chlorpyrifos
    • Agriculture

2.8 Miles

2010

5C


2026
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

2.8 Miles

2010

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2.8 Miles

2010

5A

Low

  • Diazinon
    • Agriculture

2.8 Miles

2010

5C


2026
  • Dieldrin
    • A Source Unknown

2.8 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

2.8 Miles

2010

5A

Low

  • Salinity
    • A Source Unknown

2.8 Miles

2010

5A

Low

  • Specific Conductivity
    • A Source Unknown

2.8 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

2.8 Miles

2014

5A

Low



5

Santa Fe Canal

River & Stream

54120000  /  18040001
  • Boron
    • A Source Unknown

17 Miles

2020

5A

Low



5

Scotchman Creek (Nevada County)

River & Stream

5517.320202  /  18020125
  • Copper
    • A Source Unknown

3.8 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

3.8 Miles

2014

5A

Low

  • pH
    • A Source Unknown

3.8 Miles

2014

5A

Low



5

Scotts Flat Reservoir

Lake & Reservoir

51720011  /  18020125
  • Mercury
    • A Source Unknown

661 Acres

2002

5A

Low



5

Shady Creek (Nevada County)

River & Stream

51731012  /  18020125
  • Copper
    • A Source Unknown

11 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

11 Miles

2014

5A

Low



5

Shasta Lake

Lake & Reservoir

50610000  /  18020005
  • Mercury
    • A Source Unknown

11443 Acres

2010

5A

Low



5

Shasta Lake (area where West Squaw Creek enters)

Lake & Reservoir

5506.100000,5506.200401  /  18020005
  • Cadmium
    • A Source Unknown

34 Acres

1990

5A

Low

  • Copper
    • A Source Unknown

34 Acres

1990

5A

Low

  • Zinc
    • A Source Unknown

34 Acres

1990

5A

Low



5

Simmerly Slough (Yuba County)

River & Stream

51540000  /  18020106
  • Toxicity
    • A Source Unknown

5.5 Miles

2014

5A

Low



5

Siskiyou, Lake

Lake & Reservoir

52522022  /  18020005
  • Mercury
    • A Source Unknown

434 Acres

2014

5A

Low



5

Slab Creek Reservoir (El Dorado County)

Lake & Reservoir

51432013  /  18020129
  • Mercury
    • A Source Unknown

242 Acres

2010

5A

Low



5

Sly Creek Reservoir (Butte County)

Lake & Reservoir

5518.230001  / 
  • Mercury
    • A Source Unknown

618 Acres

2020

5A

Low



5

Snake River (Butte and Sutter Counties)

River & Stream

52030000  /  18020106
  • Indicator Bacteria
    • A Source Unknown

27 Miles

2014

5A

Low



5

Solano Lake

Lake & Reservoir

5511.200000  /  18020109
  • Mercury
    • A Source Unknown

25 Acres

2010

5A

Low



5

South Fork Battle Creek (Tehama County)

River & Stream

5507.120501,5507.120502,5507.120503,5507.120601,5507.120701,5507.120702,5507.120803  / 
  • pH
    • A Source Unknown

34 Miles

2020

5A

Low



5

South Fork Cosumnes River

River & Stream

6532.240501,6532.240603,6532.240701,6532.240702  / 
  • Oxygen, Dissolved
    • A Source Unknown

25 Miles

2020

5A

Low



5

Spanish Creek (Plumas County)

River & Stream

51851011  /  18020122
  • Indicator Bacteria
    • A Source Unknown

29 Miles

2014

5A

Low



5

Spaulding, Lake

Lake & Reservoir

51734030  /  18020125
  • Mercury
    • A Source Unknown

694 Acres

2014

5A

Low



5

Spring Creek (Colusa County)

River & Stream

5520.210000,5561.200002  /  18020104
  • Chlorpyrifos
    • Agriculture

14 Miles

2010

5C


2026
  • Diazinon
    • Agriculture

14 Miles

2010

5C


2026
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2010

5A

Low

  • Salinity
    • A Source Unknown

14 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

14 Miles

2014

5A

Low



5

Spring Creek (Nevada County)

River & Stream

51732031  /  18020125
  • Copper
    • A Source Unknown

6.4 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

6.4 Miles

2014

5A

Low



5

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

River & Stream

52440010  /  18020112
  • Acid Mine Drainage
    • A Source Unknown

2.7 Miles

1996

5A

Low

    All resource extraction sources are abandoned mines.
  • Cadmium
    • A Source Unknown

2.7 Miles

1996

5A

Low

    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

2.7 Miles

1996

5A

Low

    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

2.7 Miles

1996

5A

Low

    All resource extraction sources are abandoned mines.


5

Squirrel Creek (Nevada County)

River & Stream

51720023  /  18020125
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

Low



5

Stanislaus River, Lower

River & Stream

53530000  /  18040002
  • Mercury
    • A Source Unknown

60 Miles

2002

5A

Low

  • Specific Conductivity
    • A Source Unknown

60 Miles

2014

5A

Low

  • Temperature, water
    • A Source Unknown

60 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

60 Miles

2014

5A

Low

  • Zinc
    • A Source Unknown

60 Miles

2010

5A

Low



5

Stanton Creek (Lake County)

River & Stream

5513.400104,5513.400203  / 
  • Benthic Community Effects
    • A Source Unknown

4.9 Miles

2020

5A

Low

  • pH
    • A Source Unknown

4.9 Miles

2020

5A

Low



5

Staten Island Drain (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

2 Miles

2020

5A

Low



5

Stockton Deep Water Ship Channel (in Delta Waterways)

River & Stream

6544.000000  /  18040004
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

12 Miles

1992

5A

Low

  • Imidacloprid
    • A Source Unknown

12 Miles

2026

5A

Low

  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

12 Miles

1992

5B


2011
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

12 Miles

2002

5B


2007
  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2028

5B


2007
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

12 Miles

2006

5A

Low

    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).
  • Temperature, water
    • A Source Unknown

12 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

12 Miles

2014

5A

Low



5

Stone Corral Creek

River & Stream

5520.210000,5561.300302  /  18020104
  • Oxygen, Dissolved
    • A Source Unknown

29 Miles

2010

5A

Low



5

Stony Creek

River & Stream

52021000  /  18020115
  • Chlorpyrifos
    • Agriculture

60 Miles

2010

5C


2026
  • Iron
    • A Source Unknown

60 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

60 Miles

2014

5A

Low

  • pH
    • A Source Unknown

60 Miles

2010

5A

Low



5

Stony Gorge Reservoir

Lake & Reservoir

52222000  /  18020115
  • Mercury
    • A Source Unknown

1383 Acres

2010

5A

Low



5

Strong Ranch Slough

River & Stream

51921000  /  18020111
  • Pyrethroids
    • A Source Unknown

6.8 Miles

2010

5B


2019
  • Toxicity
    • A Source Unknown

6.8 Miles

2014

5A

Low



5

Success Lake

Lake & Reservoir

55512058  /  18030012
  • Mercury
    • A Source Unknown

2471 Acres

2014

5A

Low

  • pH
    • A Source Unknown

2471 Acres

2010

5A

Low



5

Sucker Run (Butte County)

River & Stream

51822023  /  18020123
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low



5

Sugar Cut (in Delta Waterways, southern portion)

River & Stream

6544.000000  / 
  • Total Dissolved Solids
    • A Source Unknown

1.3 Miles

2020

5A

Low



5

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

River & Stream

53631022  /  18040009
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

Low



5

Sulphur Creek (Colusa County)

River & Stream

51320024  /  18020116
  • Mercury
    • A Source Unknown

7.7 Miles

1996

5A

Low



5

Sutter Bypass

River & Stream

5511.200000,5519.220000,5520.100001,5520.300000  /  18020109
  • Aluminum
    • A Source Unknown

23 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

23 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

23 Miles

2020

5A

Low



5

Sweany Creek (Solano County)

River & Stream

5511.100000  /  18020109
  • Toxicity
    • A Source Unknown

8.5 Miles

2014

5A

Low



5

Sycamore Slough (Yolo County)

River & Stream

52010000  /  18020104
  • Oxygen, Dissolved
    • A Source Unknown

17 Miles

2010

5A

Low



5

TID Lateral 7 (Merced County)

River & Stream

6535.500000  / 
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

2.3 Miles

2020

5A

Low



5

TID Lower Stevinson Canal (Merced County)

River & Stream

6535.500000  / 
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

3 Miles

2020

5A

Low



5

Temple Creek

River & Stream

53140000  /  18040002
  • Ammonia
    • A Source Unknown

10 Miles

1996

5A

Low

  • Bifenthrin
    • A Source Unknown

10 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

10 Miles

2014

5C


2026
  • Diuron
    • A Source Unknown

10 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

10 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

10 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

10 Miles

2020

5A

Low

  • Simazine
    • A Source Unknown

10 Miles

2014

5A

Low

  • Specific Conductivity
    • A Source Unknown

10 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

10 Miles

2026

5A

Low



5

Ten Mile Creek (Kings River, South Fork)

River & Stream

55234280  /  18030010
  • Oxygen, Dissolved
    • A Source Unknown

9.7 Miles

2010

5A

Low



5

Thermalito Afterbay

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • A Source Unknown

4037 Acres

2010

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

4037 Acres

2010

5A

Low



5

Thermalito Forebay

Lake & Reservoir

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

563 Acres

2010

5A

Low



5

Thomes Creek (Tahema County)

River & Stream

5504.200001,5523.100102,5523.100103,5523.100202,5523.100203,5523.100301,5523.100302,5523.100401,5523.100403,5523.100404,(Total Count: 11)  / 
  • Aluminum
    • A Source Unknown

67 Miles

2020

5A

Low



5

Toe Drain (in Delta Waterways, northwestern portion)

River & Stream

51000000  /  18020109
  • Aluminum
    • A Source Unknown

22 Miles

2020

5A

Low



5

Tom Paine Slough (in Delta Waterways, southern portion)

River & Stream

6544.000000  /  18040003
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2010

5A

Low

  • Salinity
    • A Source Unknown

14 Miles

2010

5A

Low



5

Town Creek

River & Stream

50620010  /  18020005
  • Cadmium
    • A Source Unknown

0.79 Miles

1996

5A

Low

    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

0.79 Miles

1996

5A

Low

    All resource extraction sources are abandoned mines.
  • Lead
    • A Source Unknown

0.79 Miles

1996

5A

Low

    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

0.79 Miles

1996

5A

Low



5

Tule Canal (Yolo County)

River & Stream

51120000  /  18020109
  • Boron
    • A Source Unknown

11 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

Low

  • Salinity
    • A Source Unknown

11 Miles

2010

5A

Low



5

Tule River, Lower

River & Stream

7555.120603,7555.130000,7558.100000,7558.200000,7558.300000  /  18030012
  • Bifenthrin
    • A Source Unknown

93 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

93 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

93 Miles

2014

5A

Low

  • pH
    • A Source Unknown

93 Miles

2014

5A

Low



5

Tulloch Reservoir

Lake & Reservoir

53422063  /  18040010
  • Mercury
    • A Source Unknown

939 Acres

2010

5A

Low



5

Tuolumne River east of Hetch Hetchy Reservoir (Tuolumne County)

River & Stream

6536.600202,6536.600302,6536.600402,6536.600901,6536.600905  / 
  • Alkalinity as CaCO3
    • A Source Unknown

30 Miles

2026

5A

Low



5

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

River & Stream

53550000  /  18040002
  • Benthic Community Effects
    • A Source Unknown

57 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

57 Miles

2010

5A

Low

  • Specific Conductivity
    • A Source Unknown

57 Miles

2010

5A

Low

  • Temperature, water
    • A Source Unknown

57 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

57 Miles

2014

5A

Low



5

Turkey Creek (Lake County)

River & Stream

5513.320202  / 
  • Mercury
    • A Source Unknown

1.6 Miles

2024

5A

Low



5

Turlock Lake

Lake & Reservoir

53560000  /  18040002
  • Mercury
    • A Source Unknown

2824 Acres

2010

5A

Low



5

Turnback Creek (Tuolumne County)

River & Stream

53631030  /  18040009
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2014

5A

Low



5

Turner Cut (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Oxygen, Dissolved
    • A Source Unknown

2.9 Miles

2020

5A

Low



5

Turner Slough (Merced County)

River & Stream

6535.700000  /  18040001
  • Indicator Bacteria
    • Agriculture-animal

2.9 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

2.9 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

2.9 Miles

2014

5A

Low



5

Turner Slough (drains into San Joaquin River (Bear Creek to Mud Slough), Merced County)

River & Stream

6535.700000,6541.200000  /  18040001
  • Indicator Bacteria
    • A Source Unknown

1.3 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

1.3 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

1.3 Miles

2014

5A

Low



5

Twain Harte Creek (Tuolumne County)

River & Stream

53631010  /  18040009
  • Indicator Bacteria
    • A Source Unknown
    • Grazing-Related Sources
    • Natural Sources

3.5 Miles

2014

5A

Low

  • pH
    • A Source Unknown

3.5 Miles

2014

5A

Low



5

Twain Harte Lake

Lake & Reservoir

53631010  /  18040009
  • pH
    • A Source Unknown

9.7 Acres

2020

5A

Low



5

Ulatis Creek (in Delta Waterways, northwestern portion)

River & Stream

5510.000000,5511.100000  / 
  • Bifenthrin
    • A Source Unknown

6.3 Miles

2022

5A

Low

  • Chlorpyrifos
    • Agriculture

6.3 Miles

2022

5C


2026
  • Diuron
    • Agriculture

6.3 Miles

2022

5C


2019
  • Imidacloprid
    • A Source Unknown

6.3 Miles

2022

5A

Low

  • Indicator Bacteria
    • A Source Unknown

6.3 Miles

2022

5A

Low

  • Metolachlor
    • A Source Unknown

6.3 Miles

2022

5A

Low

  • Specific Conductivity
    • A Source Unknown

6.3 Miles

2022

5A

Low

  • Toxicity
    • A Source Unknown

6.3 Miles

2022

5A

Low



5

Unknown tributary to South Fork Cosumnes River (Amador County)

River & Stream

6532.240701  / 
  • Oxygen, Dissolved
    • A Source Unknown

1.8 Miles

2020

5A

Low



5

Unnamed Drain at Highway 140

River & Stream

6535.700000  / 
  • Oxygen, Dissolved
    • A Source Unknown

0.87 Miles

2020

5A

Low



5

Unnamed Tributary to Alder Creek (Sacramento County)

River & Stream

5514.250001,5519.210000  / 
  • Bifenthrin
    • A Source Unknown

1 Miles

2020

5A

Low

  • Fipronil
    • A Source Unknown

1 Miles

2020

5A

Low

  • Fipronil Sulfone
    • A Source Unknown

1 Miles

2020

5A

Low

  • Imidacloprid
    • A Source Unknown

1 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

1 Miles

2020

5A

Low



5

Unnamed tributary near Table Mountain Rancheria (Fresno County)

River & Stream

6540.700203  / 
  • Iron
    • A Source Unknown

4.8 Miles

2020

5A

Low

  • Zinc
    • A Source Unknown

4.8 Miles

2020

5A

Low



5

Unnamed tributary to Coyote Creek (San Joaquin County)

River & Stream

6531.110000  / 
  • Oxygen, Dissolved
    • A Source Unknown

5.6 Miles

2020

5A

Low



5

Victoria Canal (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Arsenic
    • A Source Unknown

4 Miles

2020

5A

Low

  • Bifenthrin
    • A Source Unknown

4 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

4 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

4 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

4 Miles

2020

5A

Low

  • Specific Conductivity
    • A Source Unknown

4 Miles

2020

5A

Low



5

Wadsworth Canal

River & Stream

5520.300000  /  18020106
  • Chlorpyrifos
    • Agriculture

16 Miles

2010

5C


2026
  • Diazinon
    • Agriculture

16 Miles

2006

5C


2026
  • Indicator Bacteria
    • A Source Unknown

16 Miles

2014

5A

Low



5

Walker Creek (Glenn County)

River & Stream

52021000  /  18020104
  • Indicator Bacteria
    • A Source Unknown

17 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

17 Miles

2014

5A

Low



5

Walthall Slough (in Delta Waterways, eastern portion)

River & Stream

6544.000000  /  18040002
  • Oxygen, Dissolved
    • A Source Unknown

9.9 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

9.9 Miles

2020

5A

Low



5

Webb, Lake

Lake & Reservoir

55710000  /  18030012
  • Mercury
    • A Source Unknown

864 Acres

2014

5A

Low



5

West Squaw Creek (below Balaklala Mine)

River & Stream

50620010  /  18020005
  • Cadmium
    • A Source Unknown

2 Miles

2006

5A

Low

    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

2 Miles

2006

5A

Low

    All resource extraction sources are abandoned mines.
  • Lead
    • A Source Unknown

2 Miles

2006

5A

Low

    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

2 Miles

2006

5A

Low

    All resource extraction sources are abandoned mines.


5

West Valley Reservoir

Lake & Reservoir

52653045  /  18020002
  • Mercury
    • A Source Unknown

996 Acres

2014

5A

Low



5

Westley Wasteway (Stanislaus County)

River & Stream

54110000  /  18040002
  • Chlorpyrifos
    • Agriculture

4 Miles

2010

5C


2026
  • Dimethoate
    • A Source Unknown

4 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

4 Miles

2014

5A

Low



5

Whiskeytown Lake

Lake & Reservoir

52461000  /  18020112
  • Mercury
    • A Source Unknown

3115 Acres

2014

5A

Low



5

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

Lake & Reservoir

5524.610000,5524.630201,5524.630203,5524.630305  /  18020112
  • Mercury
    • A Source Unknown

170 Acres

2010

5A

Low



5

Wildwood, Lake (Nevada County)

Lake & Reservoir

51720020  /  18020125
  • Mercury
    • A Source Unknown

289 Acres

2010

5A

Low



5

William Pond (Sacramento County)

Lake & Reservoir

5519.210000  / 
  • Mercury
    • A Source Unknown

33 Acres

2024

5A

Low



5

Willow Creek (Lassen County, Central Valley)

River & Stream

5526.610701,5526.610702,5526.610704,5526.610801  /  18020002
  • Indicator Bacteria
    • A Source Unknown

26 Miles

2014

5A

Low

  • pH
    • A Source Unknown

26 Miles

2010

5A

Low



5

Willow Creek (Madera County)

River & Stream

54021051  /  18040006
  • Temperature, water
    • A Source Unknown

6.9 Miles

2006

5A

Low



5

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

River & Stream

52463010  /  18020112
  • Acid Mine Drainage
    • A Source Unknown

3.7 Miles

1998

5A

Low

    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

3.7 Miles

1998

5A

Low

    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

3.7 Miles

1998

5A

Low

    All resource extraction sources are abandoned mines.


5

Willow Slough (Yolo County)

River & Stream

51120000  /  18020109
  • Boron
    • A Source Unknown

9.8 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

9.8 Miles

2014

5A

Low



5

Willow Slough Bypass (Yolo County)

River & Stream

51120000  /  18020109
  • Bifenthrin
    • A Source Unknown

7.4 Miles

2024

5A

Low

  • Boron
    • A Source Unknown

7.4 Miles

2010

5A

Low

  • Diuron
    • Agriculture

7.4 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7.4 Miles

2014

5A

Low

  • Malathion
    • Agriculture

7.4 Miles

2014

5C


2020
  • Oxyfluorfen
    • A Source Unknown

7.4 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

7.4 Miles

2024

5A

Low

  • Selenium
    • A Source Unknown

7.4 Miles

2010

5A

Low



5

Wolf Creek (Nevada County)

River & Stream

51632010  /  18020126
  • Indicator Bacteria
    • A Source Unknown

23 Miles

2014

5A

Low



5

Woods Creek (Tuolumne County)

River & Stream

53631041  /  18040009
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

Low

  • Specific Conductivity
    • A Source Unknown

15 Miles

2014

5A

Low



5

Woodward Reservoir

Lake & Reservoir

6535.400000  /  18040002
  • Mercury
    • A Source Unknown

1717 Acres

2010

5A

Low



5

Yankee Slough (Placer and Sutter Counties)

River & Stream

51510000  /  18020108
  • Chlorpyrifos
    • Agriculture

13 Miles

2010

5C


2026
  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

Low



5

Yokohl Creek

River & Stream

7553.500102,7553.500103,7553.500104,7553.500200,7558.100000  / 
  • Copper
    • A Source Unknown

22 Miles

2020

5A

Low

  • Diazinon
    • A Source Unknown

22 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

22 Miles

2020

5A

Low



5

Yuba River (Englebright Lake Dam to Feather River, Lower)

River & Stream

5515.200000,5515.300000,5517.120004,5517.120005,5517.140003  /  18020106
  • Copper
    • A Source Unknown

24 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

24 Miles

2010

5A

Low



5

Yuba River (confluence of North and Middle Yuba Rivers to Englebright Lake)

River & Stream

5517.140002,5517.140004,5517.410201,5517.410202,5517.410203,5517.420101,5517.420102,5517.420103,5517.420203,5517.510101  /  18020125
  • Chromium
    • A Source Unknown

52 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

52 Miles

2010

5A

Low



5

Yuba River, North Fork

River & Stream

51751011  /  18020125
  • Mercury
    • A Source Unknown

46 Miles

2010

5A

Low



5

Yuba River, South Fork (Headwaters to Spaulding, Lake)

River & Stream

51734030  /  18020125
  • Copper
    • A Source Unknown

20 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

20 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

20 Miles

2014

5A

Low



5

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

River & Stream

51732031  /  18020126
  • Chromium
    • A Source Unknown

42 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

42 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

42 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

42 Miles

2010

5A

Low

  • Temperature, water
    • A Source Unknown

42 Miles

2010

5A

Low



5

Zayak (Swan) Lake

Lake & Reservoir

51620010  /  18020126
  • Mercury
    • A Source Unknown

24 Acres

2014

5A

Low



6

Amargosa River (Nevada border to Tecopa)

River & Stream

9609.420000  /  18090202
  • Arsenic
    • Natural Sources

60 Miles

2010

5A

Low



6

Amargosa River (Tecopa to Upper Canyon)

River & Stream

9609.420000  /  18090202
  • Arsenic
    • A Source Unknown

2.5 Miles

2010

5A

Low



6

Amargosa River (Willow Creek confluence to Badwater)

River & Stream

9609.110800  /  18090203
  • Arsenic
    • A Source Unknown

73 Miles

2012

5A

Low



6

Arrowhead, Lake

Lake & Reservoir

9628.200000  /  18090208
  • Mercury
    • A Source Unknown

736 Acres

2012

5A

Medium



6

Bear Creek (Placer County)

River & Stream

8635.200103  /  16050102
  • Phosphorus
    • A Source Unknown

3 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

3 Miles

2014

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

3 Miles

2014

5A

Low



6

Bidwell Creek

River & Stream

8641.300102,8641.300104,8641.300400  /  18080001
  • Total Dissolved Solids
    • A Source Unknown

12 Miles

2010

5A

Low



6

Bijou Creek (El Dorado County)

River & Stream

8634.100302,8634.300000  / 
  • Nitrogen
    • A Source Unknown

3.8 Miles

2026

5A

Low

  • Phosphorus
    • A Source Unknown

3.8 Miles

2026

5A

Low

  • Turbidity
    • A Source Unknown

3.8 Miles

2026

5A

Low



6

Bijou Park Creek

River & Stream

8634.100302,8634.300000  /  16050101
  • Chloride
    • A Source Unknown

1.6 Miles

2012

5A

Low

  • Iron
    • A Source Unknown

1.6 Miles

2012

5A

Low

  • Nitrogen
    • A Source Unknown

1.6 Miles

2026

5A

Low

  • Oil and Grease
    • A Source Unknown

1.6 Miles

2012

5A

Low

  • Phosphorus
    • A Source Unknown

1.6 Miles

2012

5B


2011
  • Total Nitrogen as N
    • A Source Unknown

1.6 Miles

2012

5B


2011
  • Turbidity
    • A Source Unknown

1.6 Miles

2012

5B


2011


6

Bishop Creek (Intake 2)

River & Stream

9603.201606,9603.201705,9603.201707,9603.202800  /  18090102
  • Benthic Community Effects
    • A Source Unknown

10 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

10 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

10 Miles

2014

5A

Low



6

Bishop Creek B-1 Drain

River & Stream

9603.202800  / 
  • Indicator Bacteria
    • A Source Unknown

0.31 Miles

2014





6

Bishop Creek Forks (North and South Forks below bifurcation)

River & Stream

9603.202800  / 
  • Indicator Bacteria
    • A Source Unknown

9.8 Miles

2014





6

Blackwood Creek

River & Stream

8634.200201  /  16050101
  • Benthic Community Effects
    • A Source Unknown

7 Miles

2014

5A

Low

  • Iron
    • A Source Unknown
    • Unknown Nonpoint Source

7 Miles

2002

5A

Low

  • Nitrogen
    • A Source Unknown

7 Miles

2002

5B


2011
  • Phosphorus
    • A Source Unknown

7 Miles

2002

5B


2011
  • Sedimentation/Siltation
    • A Source Unknown

7 Miles

1996

5B


2008
  • Turbidity
    • A Source Unknown

7 Miles

2014

5A

Low



6

Bodie Creek

River & Stream

8630.200201,8630.200202  /  18090101
  • Mercury
    • A Source Unknown

10 Miles

2006

5A

Medium



6

Bridgeport Reservoir

Lake & Reservoir

8630.100103,8630.300100,8630.300301,8630.300302,8630.300403,8630.300500  /  16050301
  • Mercury
    • A Source Unknown

2557 Acres

2010

5A

Medium

  • Nitrogen
    • A Source Unknown

2557 Acres

1992

5A

Low

  • Phosphorus
    • A Source Unknown

2557 Acres

1992

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

2557 Acres

1992

5A

Low



6

Carson River, East Fork

River & Stream

8632.100101,8632.100102,8632.100103,8632.100501,8632.100502,8632.100604,8632.100701,8632.100702  /  16050201
  • Boron
    • A Source Unknown

47 Miles

2010

5A

Medium

  • Nitrogen
    • A Source Unknown

47 Miles

2014

5A

Medium

  • Phosphorus
    • A Source Unknown

47 Miles

2010

5A

Medium

  • Sulfates
    • A Source Unknown

47 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

47 Miles

2010

5A

Medium

  • Turbidity
    • A Source Unknown

47 Miles

2010

5A

Medium



6

Carson River, West Fork (Headwaters to Hope Valley)

River & Stream

8633.100002,8633.200001,8633.200002,8633.200004,8633.200005  /  16050201
  • Benthic Community Effects
    • A Source Unknown

13 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

13 Miles

2010

5R

Low

  • Nitrogen
    • A Source Unknown

13 Miles

2002

5R

Low

  • Nitrogen, Nitrate
    • A Source Unknown

13 Miles

2014



  • Phosphorus
    • A Source Unknown

13 Miles

2002



  • Sulfates
    • A Source Unknown

13 Miles

2010



  • Total Dissolved Solids
    • A Source Unknown
    • Highway Maintenance and Runoff
    • Highway/Road/Bridge Runoff

13 Miles

2010

5R

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

13 Miles

2014



  • Turbidity
    • A Source Unknown

13 Miles

2010

5R

Low



6

Carson River, West Fork (Hope Valley to Woodfords)

River & Stream

8633.100002,8633.100003  /  16050201
  • Chloride
    • A Source Unknown

6 Miles

2012



  • Nitrogen
    • A Source Unknown

6 Miles

2002



  • Nitrogen, Nitrate
    • A Source Unknown

6 Miles

2014



  • Phosphorus
    • A Source Unknown

6 Miles

2012



  • Sulfates
    • A Source Unknown

6 Miles

2012



  • Total Dissolved Solids
    • A Source Unknown

6 Miles

2012



  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

6 Miles

2012



  • Turbidity
    • A Source Unknown

6 Miles

2012





6

Carson River, West Fork (Woodfords to stateline)

River & Stream

8633.100003  /  16050201
  • Benthic Community Effects
    • A Source Unknown

6.3 Miles

2026

5A

Low

  • Iron
    • A Source Unknown

6.3 Miles

2014



  • Nitrogen
    • A Source Unknown

6.3 Miles

2014



  • Nitrogen, Nitrate
    • A Source Unknown

6.3 Miles

2014



  • Phosphorus
    • A Source Unknown

6.3 Miles

2014

5R

Low

  • Sulfates
    • A Source Unknown

6.3 Miles

2014



  • Total Dissolved Solids
    • A Source Unknown

6.3 Miles

2014



  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

6.3 Miles

2014



  • Turbidity
    • A Source Unknown

6.3 Miles

2014





6

Cedar Creek

River & Stream

8641.200102,8641.200400  /  18080001
  • Chloride
    • A Source Unknown

9.2 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

9.2 Miles

2010

5A

Low



6

Cold Creek

River & Stream

8634.100301,8634.100303  /  16050101
  • Nitrogen
    • A Source Unknown

8 Miles

2014

5A

Low



6

Crab Creek

River & Stream

9628.200000  /  18090208
  • Oxygen, Dissolved
    • A Source Unknown

5.5 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

5.5 Miles

2010

5A

Low



6

Crater Lake

Lake & Reservoir

8637.310305  /  18080003
  • Mercury
    • A Source Unknown

28 Acres

2012

5A

Medium



6

Crowley Lake

Lake & Reservoir

9603.100802,9603.100803  /  18090102
  • Ammonia
    • A Source Unknown

4140 Acres

2006

5A

Low

  • Arsenic
    • A Source Unknown

4140 Acres

2026

5A

Low

  • Mercury
    • A Source Unknown

4140 Acres

2010

5A

Medium

  • Oxygen, Dissolved
    • A Source Unknown

4140 Acres

2006

5A

Medium



6

Deep Creek (below Lake) (San Bernardino County)

River & Stream

9628.200000  /  18090208
  • Benthic Community Effects
    • A Source Unknown

25 Miles

2014

5A

Low

  • Boron
    • A Source Unknown

25 Miles

2010

5A

Low

  • Chloride
    • A Source Unknown

25 Miles

2010

5A

Low

  • Fluoride
    • A Source Unknown

25 Miles

2010

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

25 Miles

2014

5A

Low

  • Orthophosphate
    • A Source Unknown

25 Miles

2026

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

25 Miles

2010

5A

Low

  • Phosphate
    • A Source Unknown

25 Miles

2010

5A

Low

  • Sodium
    • A Source Unknown

25 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

25 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

25 Miles

2010

5A

Low



6

Donner Lake

Lake & Reservoir

8635.200201  /  16050102
  • Arsenic
    • A Source Unknown

834 Acres

2012

5A

Low

  • Chlordane
    • A Source Unknown

834 Acres

2012

5A

Low

  • PCBs (Polychlorinated biphenyls) (tissue)
    • A Source Unknown

834 Acres

2012

5A

Low



6

Dressler Ditch

River & Stream

8632.200000  /  16050201
  • Turbidity
    • A Source Unknown

2.1 Miles

2012

5A

Low



6

Eagle Creek

River & Stream

8634.100401,8634.200302  / 
  • Nitrogen
    • A Source Unknown

5.8 Miles

2014

5A

Low



6

Eagle Lake (Lassen County)

Lake & Reservoir

8637.310304,8637.310402,8637.310403,8637.310501,8637.310502,8637.310601,8637.310602,8637.310603,8637.310604,8637.320000  /  18080003
  • Boron
    • A Source Unknown

24377 Acres

2026

5A

Low

  • Chloride
    • A Source Unknown

24377 Acres

2026

5A

Low

  • Nitrogen
    • A Source Unknown

24377 Acres

2002

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

24377 Acres

2026

5A

Low

  • Phosphorus
    • A Source Unknown

24377 Acres

2002

5A

Low

  • Sodium Adsorption Ratio (SAR)
    • A Source Unknown

24377 Acres

2026

5A

Low

  • Specific Conductivity
    • A Source Unknown

24377 Acres

2026

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

24377 Acres

2026

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

24377 Acres

2026

5A

Low



6

East Barry Creek

River & Stream

8637.200601,8637.200604  / 
  • Nitrogen
    • A Source Unknown

1.9 Miles

2026

5A

Low



6

East Martis Creek

River & Stream

8635.200401,8635.200402  / 
  • Phosphorus
    • A Source Unknown

4.8 Miles

2026

5A

Low

  • Turbidity
    • A Source Unknown

4.8 Miles

2014

5A

Low



6

East Walker River, below Bridgeport Reservoir

River & Stream

8630.100101,8630.100102,8630.100103  /  16050301
  • Arsenic
    • A Source Unknown

8.3 Miles

2010

5A

Low

  • Iron
    • A Source Unknown

8.3 Miles

2010

5A

Low

  • Manganese
    • A Source Unknown

8.3 Miles

2010

5A

Low

  • Nitrogen
    • A Source Unknown

8.3 Miles

2002

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

8.3 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

8.3 Miles

2002

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

8.3 Miles

2002

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

8.3 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

8.3 Miles

2010

5A

Low



6

Emerson Creek

River & Stream

8641.100102,8641.100300  /  18080001
  • Nitrogen
    • A Source Unknown

5.9 Miles

2014

5A

Low



6

Fallen Leaf Lake

Lake & Reservoir

8634.100404  /  16050101
  • Nitrogen
    • A Source Unknown

1409 Acres

2026

5A

Low



6

General Creek

River & Stream

8634.200303,8634.300000  /  16050101
  • Benthic Community Effects
    • A Source Unknown

9.2 Miles

2014

5A

Low

  • Iron
    • A Source Unknown
    • Unknown Nonpoint Source

9.2 Miles

2002

5A

Low

  • Nitrogen
    • A Source Unknown

9.2 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

9.2 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

9.2 Miles

2002

5B


2011


6

Green Creek

River & Stream

8630.300500,8630.400400  /  16050301
  • Nitrogen
    • A Source Unknown

19 Miles

2014

5A

Low



6

Gregory, Lake

Lake & Reservoir

9628.200000  /  18090208
  • Chlordane
    • A Source Unknown

81 Acres

2012

5A

Low

  • Mercury
    • A Source Unknown

81 Acres

2012

5A

Medium



6

Griff Creek

River & Stream

8634.200105,8634.300000  / 
  • Indicator Bacteria
    • A Source Unknown

4 Miles

2014

5A

Medium



6

Heavenly Valley Creek (USFS boundary to Trout Creek)

River & Stream

8634.100301  /  16050101
  • Chloride
    • Unknown Point Source

1.5 Miles

2002

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

1.5 Miles

2002

5B


2011


6

Heavenly Valley Creek (source to USFS boundary)

River & Stream

8634.100301  /  16050101
  • Benthic Community Effects
    • Erosion/Siltation

2 Miles

2014

5B


2002
  • Chloride
    • A Source Unknown

2 Miles

2002

5A

Low

  • Iron
    • A Source Unknown

2 Miles

2012

5A

Low

  • Phosphorus
    • A Source Unknown

2 Miles

2002

5B


2011
  • Sedimentation/Siltation
    • A Source Unknown

2 Miles

2006

5B


2002


6

Hidden Valley Creek

River & Stream

8634.100202  /  16050101
  • Benthic Community Effects
    • A Source Unknown

2.9 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

2.9 Miles

2012

5A

Low

  • Iron
    • A Source Unknown

2.9 Miles

2012

5A

Low

  • Nitrogen
    • A Source Unknown

2.9 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

2.9 Miles

2012

5A

Low



6

Hilton Creek

River & Stream

9603.100801,9603.100803  /  18090102
  • Benthic Community Effects
    • A Source Unknown

9.4 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

9.4 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown
    • Unknown Nonpoint Source

9.4 Miles

2010

5A

Low



6

Holcomb Creek

River & Stream

9628.200000  /  18090208
  • Fluoride
    • A Source Unknown

19 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

19 Miles

2010

5A

Low

  • Sulfates
    • A Source Unknown

19 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

19 Miles

2010

5A

Low



6

Honey Lake

Saline Lake

8637.100600,8637.200905  /  18080003
  • Arsenic
    • A Source Unknown

55526 Acres

1998

5A

Low

    Arsenic in Honey Lake is ultimately from natural sources, but the lake is affected by geothermal discharges. Further study is needed to determine whether a TMDL is needed.
  • Salinity/TDS/Chlorides
    • A Source Unknown

55526 Acres

1998

5A

Low

    Honey Lake has naturally high salinity but is affected by low flows and geothermal discharges. Further study is needed to verify whether impairment occurs and whether a TMDL is needed.


6

Honey Lake Area Wetlands

Wetland, Freshwater

8637.100600,8637.200905  /  18080003
  • Metals
    • A Source Unknown

55526 Acres

2002

5A

Low

    The wetlands adjacent to Honey Lake are affected by salts and trace elements from natural sources, which may be concentrated by evaporation during dry years. Additional study is needed to verify whether impairment exists and whether a TMDL is needed.


6

Honey Lake Wildfowl Management Ponds

Saline Lake

8637.200905  /  18080003
  • Metals
    • A Source Unknown

776 Acres

1998

5A

Low

    The ponds are affected by salts and trace elements from natural sources, which may be concentrated by evaporation during dry years. Additional study is needed to verify whether impairment exists and whether a TMDL is needed.
  • Salinity/TDS/Chlorides
    • A Source Unknown

776 Acres

1998

5A

Low

    The ponds are affected by salts and trace elements from natural sources, which may be concentrated by evaporation during dry years. Additional study is needed to verify whether impairment exists and whether a TMDL is needed.
  • Trace Elements
    • A Source Unknown

776 Acres

1998

5A

Low



6

Horton Creek

River & Stream

9603.201601,9603.201607,9603.202800  / 
  • Indicator Bacteria
    • A Source Unknown

20 Miles

2014

5A

Medium



6

Hot Creek (Mono County)

River & Stream

9603.100502,9603.100503,9603.100505,9603.100803  / 
  • Boron
    • Unknown Nonpoint Source

19 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

19 Miles

2014

5A

Low

  • Mercury
    • A Source Unknown

19 Miles

2014

5A

High

  • Nitrogen
    • A Source Unknown

19 Miles

2014

5A

Low



6

Hot Creek (Walker)

River & Stream

8631.400303  /  16050302
  • Indicator Bacteria
    • A Source Unknown

4.6 Miles

2014

5A

Medium



6

Hot Springs Creek

River & Stream

8632.100602,8632.100603  / 
  • Total Dissolved Solids
    • A Source Unknown
    • Unknown Nonpoint Source

7.2 Miles

2014

5A

Low



6

Indian Creek (Alpine County)

River & Stream

8632.200000  /  16050201
  • Chloride
    • Unknown Nonpoint Source

13 Miles

2012

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2012

5A

Medium



6

LA Aqueduct Diversion

River & Stream

9603.301307,9603.301700  / 
  • Turbidity
    • A Source Unknown

0.59 Miles

2014

5A

Low



6

Little Truckee River

River & Stream

8636.000101,8636.000201,8636.000202,8636.000204,8636.000700  / 
  • Benthic Community Effects
    • A Source Unknown

21 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

21 Miles

2014

5A

Low



6

Littlerock Reservoir

Lake & Reservoir

9626.800000  /  18090206
  • Manganese
    • A Source Unknown

106 Acres

2010

5A

Low

  • Mercury
    • A Source Unknown

106 Acres

2012

5A

Medium

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

106 Acres

2012

5A

Low



6

Mammoth Creek (Headwaters to Twin Lakes outlet)

River & Stream

9603.100501,9603.100506  /  18090102
  • Total Dissolved Solids
    • A Source Unknown

4.8 Miles

2010

5A

Low



6

Mammoth Creek (Old Mammoth Road to Highway 395)

River & Stream

9603.100501,9603.100503  /  18090102
  • Fluoride
    • A Source Unknown

4 Miles

2010

5A

Low

  • Manganese
    • A Source Unknown

4 Miles

1996

5A

Low

  • Mercury
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

4 Miles

2006

5A

High

  • Oxygen, Dissolved
    • A Source Unknown

4 Miles

2010

5A

Low

  • Phosphate
    • A Source Unknown
    • Unknown Nonpoint Source

4 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

4 Miles

2010

5A

Low



6

Mammoth Creek (Twin Lakes outlet to Old Mammoth Road)

River & Stream

9603.100501  /  18090102
  • Iron
    • A Source Unknown

2.7 Miles

2010

5A

Low

  • Manganese
    • A Source Unknown

2.7 Miles

1996

5A

Low

  • Mercury
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

2.7 Miles

2006

5A

High

  • Oxygen, Dissolved
    • A Source Unknown

2.7 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

2.7 Miles

2010

5A

Low



6

Markleeville Creek

River & Stream

8632.100603,8632.100604  /  16050201
  • Benthic Community Effects
    • A Source Unknown

3.6 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

3.6 Miles

2014

5A

Medium

  • Total Dissolved Solids
    • A Source Unknown

3.6 Miles

2014

5A

Low



6

Martis Creek

River & Stream

8635.200401,8635.200402,8635.200403  /  16050102
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2026

5A

Low

  • Phosphorus
    • A Source Unknown

12 Miles

2014

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

12 Miles

2014

5A

Low

  • Turbidity
    • A Source Unknown

12 Miles

2014

5A

Low



6

McGee Creek (Mono County)

River & Stream

9603.100604,9603.100701,9603.100702,9603.100803  / 
  • Phosphate
    • A Source Unknown

13 Miles

2014

5A

Low



6

Meeks Creek

River & Stream

8634.200301,8634.200302  / 
  • Nitrogen
    • A Source Unknown

8.5 Miles

2014

5A

Low



6

Mesquite Springs (Inyo County)

Wetland, Freshwater

9609.110800  /  18090203
  • Arsenic
    • A Source Unknown

0.02 Acres

2010

5A

Low

  • Boron
    • A Source Unknown

0.02 Acres

2010

5A

Low



6

Middle Martis Creek (Placer County)

River & Stream

8635.200401  / 
  • Phosphorus
    • A Source Unknown

5.4 Miles

2026

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

5.4 Miles

2026

5A

Low

  • Turbidity
    • A Source Unknown

5.4 Miles

2026

5A

Low



6

Mill City Tributary

River & Stream

9603.100501,9603.100501  /  18090102
  • Arsenic
    • A Source Unknown

1.2 Miles

2010

5A

Medium

  • Mercury
    • A Source Unknown

1.2 Miles

2010

5A

High

  • Oxygen, Dissolved
    • A Source Unknown

1.2 Miles

2010

5A

Low



6

Mill Creek (Modoc County)

River & Stream

8641.300101,8641.300102  /  18080001
  • Total Dissolved Solids
    • A Source Unknown

4.2 Miles

2010

5A

Low



6

Mill Creek (tributary to West Walker River)

River & Stream

8631.100201,8631.100300,8631.100600  / 
  • Nitrogen
    • A Source Unknown

9.4 Miles

2026

5A

Low



6

Mojave River (Mojave Forks Reservoir outlet to Upper Narrows)

River & Stream

9628.200000  /  18090208
  • Benthic Community Effects
    • A Source Unknown

15 Miles

2014

5A

Low

  • Fluoride
    • A Source Unknown

15 Miles

2010

5A

Low

  • Sodium
    • A Source Unknown

15 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

15 Miles

2010

5A

Low



6

Mojave River (Upper Narrows to Lower Narrows)

River & Stream

9628.200000  /  18090208
  • Fluoride
    • A Source Unknown

3.7 Miles

2010

5A

Low

  • Manganese
    • A Source Unknown

3.7 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

3.7 Miles

2010

5A

Low

  • Sodium
    • A Source Unknown

3.7 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

3.7 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

3.7 Miles

2010

5A

Low



6

Mojave River (below Lower Narrows)

River & Stream

9628.200000,9628.300000,9628.500000,9628.710000,9628.720000,9628.820000  /  18090208
  • Manganese
    • A Source Unknown

95 Miles

2026

5A

Low

  • Sodium
    • A Source Unknown

95 Miles

2026

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

95 Miles

2026

5A

Low



6

Monitor Creek

River & Stream

8632.100701,8632.100703  /  16050201
  • Aluminum
    • A Source Unknown

4.1 Miles

2002

5A

Medium

  • Iron
    • A Source Unknown

4.1 Miles

2002

5A

Medium

  • Manganese
    • A Source Unknown

4.1 Miles

2002

5A

Low

  • Silver
    • A Source Unknown

4.1 Miles

2002

5A

Low

  • Sulfates
    • A Source Unknown

4.1 Miles

2002

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

4.1 Miles

2002

5A

Low



6

Noble Creek (Alpine County)

River & Stream

8632.100402  / 
  • Nitrogen
    • A Source Unknown

5.7 Miles

2026

5A

Low

  • Phosphorus
    • A Source Unknown

5.7 Miles

2026

5A

Low



6

Oak Creek (Inyo County)

River & Stream

9603.301202  / 
  • Turbidity
    • A Source Unknown

1.9 Miles

2026

5A

Low



6

Owens River (Long HA)

River & Stream

9603.100201,9603.100202,9603.100304,9603.100306,9603.100401,9603.100803  /  18090102
  • Indicator Bacteria
    • A Source Unknown

23 Miles

2014

5A

Medium

  • Oxygen, Dissolved
    • A Source Unknown

23 Miles

2014

5A

Low



6

Owens River (Upper)

River & Stream

9603.100803,9603.201304,9603.201305,9603.201306,9603.201502,9603.202800  /  18090102
  • Boron
    • A Source Unknown

80 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

80 Miles

2014

5A

Low

  • Fluoride
    • A Source Unknown

80 Miles

2014

5A

Low

  • Sodium
    • A Source Unknown

80 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

80 Miles

2014

5A

Low



6

Palmdale Lake

Lake & Reservoir

9626.500000  / 
  • Dieldrin
    • A Source Unknown

226 Acres

2012

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

226 Acres

2012

5A

Low



6

Pine Creek (Inyo County)

River & Stream

9603.201501,9603.201502,9603.201504,9603.201602  / 
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

Low



6

Pleasant Valley Reservoir

Lake & Reservoir

9603.202800  /  18090102
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

98 Acres

1996

5A

Low



6

Red Lake Creek

River & Stream

8633.200003,8633.200004  / 
  • Nitrogen
    • A Source Unknown

5.7 Miles

2026

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

5.7 Miles

2026

5A

Low

  • Phosphorus
    • A Source Unknown

5.7 Miles

2026

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

5.7 Miles

2014

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

5.7 Miles

2026

5A

Low



6

Robinson Creek (Barney Lake to Twin Lakes)

River & Stream

8630.400301,8630.400302,8630.400306  /  16050301
  • Nitrogen
    • A Source Unknown

4.1 Miles

2014

5A

Low



6

Rock Creek (tributary to Owens River)

River & Stream

9603.201402,9603.201403,9603.201404,9603.201502,9603.201503,9603.201602,9603.202800  /  18090102
  • Total Dissolved Solids
    • A Source Unknown

26 Miles

2010

5A

Low



6

Sagehen Creek

River & Stream

8636.000301,8636.000302  / 
  • Total Dissolved Solids
    • A Source Unknown

9.8 Miles

2014

5A

Low



6

Saxon Creek

River & Stream

8634.100201,8634.100202,8634.100301,8634.100403  / 
  • Nitrogen
    • A Source Unknown

7.1 Miles

2026

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

7.1 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

7.1 Miles

2026

5B


2011


6

Sheep Creek

River & Stream

9628.200000  /  18090208
  • Chloride
    • A Source Unknown

2.1 Miles

2010

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

2.1 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

2.1 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

2.1 Miles

2010

5A

Low



6

Silver Creek (Alpine County)

River & Stream

8632.100401,8632.100402,8632.100701  / 
  • Phosphorus
    • A Source Unknown

9.2 Miles

2026

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

9.2 Miles

2014

5A

Low



6

Silverwood Lake

Lake & Reservoir

9628.200000  /  18090208
  • Chloride
    • A Source Unknown

906 Acres

2026

5A

Low

  • Mercury
    • A Source Unknown

906 Acres

2012

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

906 Acres

2012

5A

Low

  • Sodium
    • A Source Unknown

906 Acres

2026

5A

Low

  • Sulfates
    • A Source Unknown

906 Acres

2026

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

906 Acres

2026

5A

Low



6

Spainhower Anchor Ranch Ditch

River & Stream

9603.301700  / 
  • Turbidity
    • A Source Unknown

0.53 Miles

2014

5A

Low



6

Squaw Creek

River & Stream

8635.200101  /  16050102
  • Benthic Community Effects
    • A Source Unknown

8.1 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

8.1 Miles

2010

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

8.1 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

8.1 Miles

2014

5A

Low

  • Sedimentation/Siltation
    • Construction/Land Development
    • Drainage/Filling Of Wetlands
    • Highway Maintenance and Runoff
    • Hydromodification
    • Natural Sources
    • Nonpoint Source
    • Other Urban Runoff
    • Recreational and Tourism Activities (non-boating)

8.1 Miles

1998

5B


2007
  • Sulfates
    • A Source Unknown

8.1 Miles

2010

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

8.1 Miles

2014

5A

Low



6

Susan River (Headwaters to Willard Crk)

River & Stream

8637.200101,8637.200103,8637.200105,8637.200201,8637.200202,8637.200203,8637.200400  /  18080003
  • Benthic Community Effects
    • A Source Unknown

21 Miles

2014

5A

Low

  • Boron
    • A Source Unknown

21 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

21 Miles

2010

5A

Low

  • Nitrogen
    • A Source Unknown

21 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

21 Miles

2010

5A

Low

  • Sulfates
    • A Source Unknown

21 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

21 Miles

2010

5A

Low



6

Susan River (Susanville to Honey Lake)

River & Stream

8637.200905  /  18080003
  • Boron
    • A Source Unknown

24 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

24 Miles

2014

5A

Low

  • Sodium
    • A Source Unknown

24 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

24 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

24 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

24 Miles

2014

5A

Low

  • Turbidity
    • A Source Unknown

24 Miles

2014

5A

Low



6

Susan River (Willard Creek to Susanville)

River & Stream

8637.200400,8637.200601,8637.200802,8637.200905  /  18080003
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2026

5A

Low

  • Boron
    • A Source Unknown

11 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

11 Miles

2010

5A

Low

  • Nitrogen
    • A Source Unknown

11 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

11 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

11 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

11 Miles

2010

5A

Low

  • Unknown Toxicity
    • A Source Unknown

11 Miles

1996

5A

Low



6

Swauger Creek

River & Stream

8630.300500,8630.400101,8630.400102,8630.400103  /  16050301
  • Indicator Bacteria
    • Agricultural Water Diversion
    • Agriculture-grazing
    • Grazing-Related Sources
    • Pasture Grazing-Riparian and/or Upland
    • Streambank Modification/Destabilization
    • Unknown Nonpoint Source

14 Miles

2014

5C


2028
  • Phosphorus
    • A Source Unknown

14 Miles

2002

5A

Low



6

Tallac Creek (below Hwy 89)

River & Stream

8634.100401,8634.300000  /  16050101
  • Chloride
    • A Source Unknown

2.1 Miles

2026

5A

Low

  • Nitrogen
    • A Source Unknown

2.1 Miles

2026

5A

Low



6

Taylor Creek

River & Stream

8634.100401,8634.100402,8634.100404,8634.300000  /  16050101
  • Chloride
    • A Source Unknown

2.1 Miles

2026

5A

Low

  • Nitrogen
    • A Source Unknown

2.1 Miles

2026

5A

Low

  • Phosphorus
    • A Source Unknown

2.1 Miles

2026

5B


2011


6

Topaz Lake

Lake & Reservoir

8631.100100,8631.100600  /  16050302
  • Mercury
    • A Source Unknown

921 Acres

2012

5A

Medium



6

Tributary to Mill Creek

River & Stream

8641.300302,8641.300400  / 
  • Total Dissolved Solids
    • A Source Unknown

1.8 Miles

2014

5A

Low



6

Trout Creek

River & Stream

8635.200202,8635.200402  / 
  • Naphthalene
    • A Source Unknown

5.4 Miles

2026

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

5.4 Miles

2026

5A

Low



6

Trout Creek (above Hwy 50)

River & Stream

8634.100202,8634.100301  /  16050101
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

12 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

12 Miles

2002

5A

Low

    This issue may be addressed through revision of the water quality objective rather than through a TMDL.
  • Nitrogen
    • A Source Unknown

12 Miles

2002

5B


2011
  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

12 Miles

2002

5B


2011
  • Turbidity
    • Atmospheric Deposition
    • Channel Erosion
    • Urban Runoff--Erosion and Sedimentation

12 Miles

2014

5B


2011


6

Trout Creek (below Hwy 50)

River & Stream

8634.100301,8634.100402  /  16050101
  • Chloride
    • A Source Unknown

1.4 Miles

2026

5A

Low

  • Iron
    • A Source Unknown

1.4 Miles

2002

5A

Low

    This listing may be addressed through revision of the water quality objective rather than through a TMDL.
  • Nitrogen
    • A Source Unknown

1.4 Miles

2002

5B


2011
  • Phosphorus
    • A Source Unknown

1.4 Miles

2002

5B


2011
  • Turbidity
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation

1.4 Miles

2026

5B


2011


6

Truckee River

River & Stream

8634.200103,8635.100003,8635.200101,8635.200102,8635.200103,8635.200202,8635.200402,8635.200501,8635.200502,8635.200504  /  16050101
  • Sedimentation/Siltation
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation
    • Highway/Road/Bridge Construction
    • Natural Sources
    • Nonpoint Source
    • Range Grazing-Riparian and/or Upland
    • Recreational and Tourism Activities (non-boating)
    • Silviculture
    • Snow skiing activities
    • Streambank Modification/Destabilization

38 Miles

1996

5B


2009
  • Total Dissolved Solids
    • A Source Unknown

38 Miles

2014

5A

Low



6

Truckee River, Upper (above Christmas Valley)

River & Stream

8634.100102  /  16050101
  • Benthic Community Effects
    • A Source Unknown

8.2 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

8.2 Miles

2002

5A

Low

    This listing may be addressed through revision of the water quality objective rather than through a TMDL.
  • Phosphorus
    • A Source Unknown

8.2 Miles

2002

5B


2011


6

Truckee River, Upper (below Christmas Valley)

River & Stream

8634.100102,8634.100301,8634.100402,8634.100403  /  16050101
  • Benthic Community Effects
    • A Source Unknown

17 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

17 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

17 Miles

2002

5A

Low

    This listing may be addressed through revision of the water quality objective rather than through a TMDL.
  • Nitrogen
    • A Source Unknown

17 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

17 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

17 Miles

2002

5B


2011


6

Truckee River, Upper (channelized segment near Tahoe Keys)

River & Stream

8634.100402  /  16050101
  • Nitrogen
    • A Source Unknown

0.57 Miles

2026

5A

Low

  • Phosphorus
    • A Source Unknown

0.57 Miles

2026

5B


2011
  • Toxicity
    • A Source Unknown

0.57 Miles

2026

5A

Low

  • Turbidity
    • A Source Unknown

0.57 Miles

2026

5B


2011


6

Twin Lake, Upper (East Walker River HU)

Lake & Reservoir

8630.400301,8630.400302  /  16050301
  • Mercury
    • A Source Unknown

306 Acres

2012

5A

Medium



6

Union Valley Creek

River & Stream

8635.200504  / 
  • Phosphorus
    • A Source Unknown

3.4 Miles

2026

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

3.4 Miles

2026

5A

Low

  • Turbidity
    • A Source Unknown

3.4 Miles

2014

5A

Low



6

Unnamed tributary of Martis Creek (Nevada and Placer County)

River & Stream

8635.200401  / 
  • Nitrogen, Nitrate
    • A Source Unknown

2.1 Miles

2026

5A

Low

  • Phosphorus
    • A Source Unknown

2.1 Miles

2026

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

2.1 Miles

2026

5A

Low



6

Virginia Creek

River & Stream

8630.300402,8630.300500,8630.400501,8630.400502  /  18090101
  • Nitrogen
    • A Source Unknown

18 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

18 Miles

2010

5A

Low



6

Ward Creek

River & Stream

8634.200204,8634.300000  /  16050101
  • Benthic Community Effects
    • A Source Unknown

6.2 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

6.2 Miles

2002

5A

Low

    This listing may be addressed through revision of the water quality objective rather than through a TMDL.
  • Nitrogen
    • A Source Unknown

6.2 Miles

2002

5B


2011
  • Phosphorus
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation

6.2 Miles

2002

5B


2011
  • Sedimentation/Siltation
    • Channel Erosion

6.2 Miles

2002

5B


2011
  • Turbidity
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation

6.2 Miles

2014

5B


2011


6

West Barry Creek

River & Stream

8637.200601,8637.200604  / 
  • Nitrogen
    • A Source Unknown

2.3 Miles

2026

5A

Low



6

West Fork Mojave River below Silverwood Lake

River & Stream

9628.200000  / 
  • Chloride
    • A Source Unknown

6.4 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

6.4 Miles

2026

5A

Low

  • Sodium
    • A Source Unknown

6.4 Miles

2014

5A

Low

  • Sulfates
    • A Source Unknown

6.4 Miles

2014

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

6.4 Miles

2014

5A

Low



6

West Martis Creek (Placer County)

River & Stream

8635.200401  / 
  • Phosphorus
    • A Source Unknown

4.6 Miles

2026

5A

Low

  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

4.6 Miles

2026

5A

Low

  • Turbidity
    • A Source Unknown

4.6 Miles

2026

5A

Low



6

West Walker River

River & Stream

8631.100400,8631.100600,8631.400101,8631.400102,8631.400103,8631.400201,8631.400202,8631.400401,8631.400403,8631.400404,(Total Count: 11)  /  16050302
  • Boron
    • A Source Unknown

44 Miles

2010

5A

Low

  • Chloride
    • A Source Unknown

44 Miles

2010

5A

Low

  • Iron
    • A Source Unknown

44 Miles

2012

5A

Low

  • Manganese
    • A Source Unknown

44 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

44 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

44 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

44 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

44 Miles

2010

5A

Low



6

Wolf Creek (Alpine County)

River & Stream

8632.100301,8632.100302,8632.100501  /  16050201
  • Phosphorus
    • A Source Unknown

13 Miles

2026

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

13 Miles

1998

5A

Low



7

Alamo River

River & Stream

10723.100000,10728.000000  /  18100200
  • Ammonia
    • A Source Unknown

59 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

59 Miles

2012

5A

Low

  • Chlordane
    • Agriculture

59 Miles

1800

5B


2024
  • Chloride
    • A Source Unknown

59 Miles

2012

5A

High

  • Chlorpyrifos
    • Agriculture

59 Miles

1994

5B


2024
  • Cyfluthrin
    • A Source Unknown

59 Miles

2012

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

59 Miles

2012

5A

High

  • Cypermethrin
    • A Source Unknown

59 Miles

2012

5A

High

  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture

59 Miles

2014

5B


2024
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

59 Miles

2014

5B


2024
  • Diazinon
    • Agriculture

59 Miles

2010

5B


2024
  • Dieldrin
    • Agriculture

59 Miles

1994

5B


2024
  • Dimethoate
    • A Source Unknown

59 Miles

2010

5A

Low

  • Enterococcus
    • A Source Unknown

59 Miles

2010

5A

High

  • Escherichia coli (E. coli)
    • A Source Unknown

59 Miles

2010

5A

High

  • Esfenvalerate/Fenvalerate
    • A Source Unknown

59 Miles

2012

5A

Low

  • Imidacloprid
    • A Source Unknown

59 Miles

2026

5A

Low

  • Malathion
    • Agriculture

59 Miles

2010

5B


2024
  • PCBs (Polychlorinated biphenyls)
    • Agriculture

59 Miles

2006

5B


2024
  • Permethrin
    • A Source Unknown

59 Miles

2012

5A

Low

  • Pyrethroids
    • A Source Unknown

59 Miles

2014

5A

High

  • Sedimentation/Siltation
    • Agricultural Return Flows

59 Miles

1994

5B


2002
  • Selenium
    • Out-of-state source

59 Miles

1992

5A

Low

    Selenium originates from Upper Basin Portion of Colorado River. Elevated fish tissue levels. 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.
  • Toxaphene
    • A Source Unknown

59 Miles

1992

5B


2024
  • Toxicity
    • A Source Unknown
    • Agriculture

59 Miles

1800

5A

High

  • Trifluralin
    • A Source Unknown

59 Miles

2026

5A

Low



7

All American Canal

River & Stream

10723.100000,10726.000000,10727.000000  /  15030107
  • Chlordane
    • A Source Unknown

80 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

80 Miles

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

80 Miles

2014

5A

Low



7

Coachella Valley Storm Water Channel

River & Stream

10719.470000  /  18100200
  • Ammonia
    • A Source Unknown

26 Miles

2014

5A

High

  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

26 Miles

2014

5C


2035
  • Dieldrin
    • Agriculture

26 Miles

2010

5C


2035
    This listing for Dieldrin only applies to a 2 mile area of the Coachella Valley Storm Water Channel from Lincoln Street to the Salton Sea.
  • Disulfoton
    • A Source Unknown

26 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

26 Miles

2012

5B


2012
    This listing for pathogens only applies to a 17 mile area of the Coachella Valley Storm Water Channel from Dillion Road to the Salton Sea.
  • Oxygen, Dissolved
    • A Source Unknown

26 Miles

2012

5A

High

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

26 Miles

2010

5C


2035
    This listing for PCBs only applies to a 2 mile area of the Coachella Valley Storm Water Channel from Lincoln Street to the Salton Sea.
  • Pyrethroids
    • A Source Unknown

26 Miles

2014

5A

Low

  • Toxaphene
    • Agriculture

26 Miles

2006

5C


2035
    This listing for toxaphene only applies to a 2 mile area of the Coachella Valley Storm Water Channel from Lincoln Street to the Salton Sea.
  • Toxicity
    • A Source Unknown

26 Miles

2012

5A

High



7

Colorado River (Imperial Reservoir to California-Mexico Border)

River & Stream

10727.000000  /  15030107
  • Manganese
    • A Source Unknown

18 Miles

2014

5A

Low

  • Turbidity
    • A Source Unknown

18 Miles

2014

5A

Low



7

Colorado River and Associated Lakes and Reservoirs (California-Nevada border to Lake Havasu)

River & Stream

10713.100000,10713.200000,10713.300000  /  15030101
  • Toxicity
    • A Source Unknown

23 Miles

2012

5A

Low



7

Colorado River and Associated Lakes and Reservoirs (Lake Havasu Dam to Imperial Dam)

River & Stream

10714.000000,10715.100000,10715.200000,10715.300000,10715.400000,10715.500000,10727.000000  /  15030107
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

147 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

147 Miles

2012

5A

Low

  • Turbidity
    • A Source Unknown

147 Miles

2010

5A

Low



7

Deep Canyon Creek (Morongo Area)

River & Stream

10719.320000  / 
  • Iron
    • A Source Unknown

6.3 Miles

2014

5A

Low

    This impairment determination does not apply to tribal waters.
  • Turbidity
    • A Source Unknown

6.3 Miles

2014

5A

Low

    This impairment determination does not apply to tribal waters.


7

Ferguson Lake

Lake & Reservoir

10715.500000  /  15030104
  • Selenium
    • A Source Unknown

395 Acres

2012

5A

Low



7

Hathaway Creek

River & Stream

10719.320000  / 
  • Turbidity
    • A Source Unknown

6.1 Miles

2014

5A

Low

    This impairment determination does not apply to tribal waters.


7

Hathaway Creek, unnamed tributary

River & Stream

10719.320000  / 
  • Iron
    • A Source Unknown

2.1 Miles

2014

5A

Low

    This impairment determination does not apply to tribal waters.
  • Turbidity
    • A Source Unknown

2.1 Miles

2014

5A

Low

    This impairment determination does not apply to tribal waters.


7

Havasu, Lake

Lake & Reservoir

10713.300000,10714.000000  /  15030101
  • Iron
    • A Source Unknown

8998 Acres

2010

5A

Low

  • Lead
    • A Source Unknown

8998 Acres

2010

5A

Low

  • Microcystins
    • A Source Unknown

8998 Acres

2026

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

8998 Acres

2026

5A

Low

  • Specific Conductivity
    • A Source Unknown

8998 Acres

2010

5A

Low



7

Imperial Valley Drains

River & Stream

10722.200000,10723.100000  /  18100200
  • Ammonia
    • A Source Unknown

1255 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

1255 Miles

2014

5A

Low

  • Chlordane
    • Agriculture

1255 Miles

2010

5B


2024
    This listing for Chlordane only applies to the Barbara Worth Drain, Peach Drain, Greeson Drain, South Central Drain, and Holtville Main Drain areas of the Imperial Valley drains.
  • Chlorpyrifos
    • Agriculture

1255 Miles

2010

5B


2024
  • Cypermethrin
    • A Source Unknown

1255 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

1255 Miles

2014

5B


2024
  • Dieldrin
    • Agriculture

1255 Miles

2006

5B


2024
    The listing for dieldrin only applies to the Barbara Worth Drain and Fig Drain areas of the Imperial Valley drains.
  • Disulfoton
    • A Source Unknown

1255 Miles

2010

5A

Low

  • Esfenvalerate/Fenvalerate
    • A Source Unknown

1255 Miles

2014

5A

Low

  • Imidacloprid
    • A Source Unknown

1255 Miles

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • Agriculture

1255 Miles

2006

5A

Low

    The listing for PCBs only applies to the Central Drain area of the Imperial Valley drains, from Meloland Road to the outlet into the Alamo River.
  • Permethrin
    • A Source Unknown

1255 Miles

2014

5A

Low

  • Pyrethroids
    • A Source Unknown

1255 Miles

2014

5A

Low

  • Sedimentation/Siltation
    • Agricultural Return Flows

1255 Miles

1998

5B


2005
  • Selenium
    • A Source Unknown

1255 Miles

1998

5A

Low

    Selenium originates from Upper Basin Portion of Colorado River. Elevated fish tissue levels.
  • Toxaphene
    • A Source Unknown

1255 Miles

2006

5A

Low

    This listing for toxaphene only applies to the Barbara Worth Drain, Peach Drain, and Rice Drain of the Imperial Valley drains.
  • Toxicity
    • A Source Unknown
    • Agriculture

1255 Miles

2014

5A

Low

  • Trifluralin
    • A Source Unknown

1255 Miles

2026

5A

Low



7

K Drain Tributary at Boyle and Sinclair Road

River & Stream

10723.100000  / 
  • Ammonia
    • A Source Unknown

2.5 Miles

2026

5A

Low

  • Manganese
    • A Source Unknown

2.5 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

2.5 Miles

2026

5A

Low



7

Lateral 12_Drain Tributary terminus of Bruchard Road

River & Stream

10723.100000  / 
  • Toxicity
    • A Source Unknown

5.4 Miles

2026

5A

Low



7

Lateral 3 Drain Tributary off Garst Road

River & Stream

10723.100000  / 
  • Manganese
    • A Source Unknown

1.5 Miles

2026

5A

Low



7

Lateral 5 Drain Tributary terminus McKendry and Severe Road

River & Stream

10723.100000  / 
  • Manganese
    • A Source Unknown

3 Miles

2026

5A

Low



7

Lateral 8 Drain Tributary at Grubel and Lack Road

River & Stream

10723.100000  / 
  • Manganese
    • A Source Unknown

1.8 Miles

2026

5A

Low



7

Lateral Drain 17 tributary near Poe Road

River & Stream

10723.100000  / 
  • Arsenic
    • A Source Unknown

1.5 Miles

2026

5A

Low

  • Nitrogen, Nitrate
    • A Source Unknown

1.5 Miles

2026

5A

Low

  • Selenium
    • A Source Unknown

1.5 Miles

2026

5A

Low



7

New River (Imperial County)

River & Stream

10723.100000,10728.000000  /  18100200
  • Ammonia
    • Out-of-state source

65 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

65 Miles

2012

5A

High

  • Chlordane
    • Agriculture

65 Miles

2006

5B


2024
  • Chloride
    • A Source Unknown

65 Miles

2012

5A

Low

  • Chlorpyrifos
    • Agriculture

65 Miles

1994

5B


2024
  • Cyfluthrin
    • A Source Unknown

65 Miles

2012

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

65 Miles

2012

5A

High

  • Cypermethrin
    • A Source Unknown

65 Miles

2012

5A

High

  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture

65 Miles

2014

5B


2024
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

65 Miles

2006

5B


2024
  • Deltamethrin
    • A Source Unknown

65 Miles

2012

5A

Low

  • Diazinon
    • Agriculture

65 Miles

2006

5A

High

  • Dieldrin
    • Agriculture

65 Miles

2006

5B


2024
  • Dimethoate
    • A Source Unknown

65 Miles

2010

5A

Low

  • Disulfoton
    • A Source Unknown

65 Miles

2010

5A

Low

  • Esfenvalerate/Fenvalerate
    • A Source Unknown

65 Miles

2012

5A

Low

  • Hexachlorobenzene/ HCB
    • A Source Unknown

65 Miles

2010

5A

Low

  • Imidacloprid
    • A Source Unknown

65 Miles

2014

5A

Low

  • Indicator Bacteria
    • Out-of-state source

65 Miles

2012

5B


2002
  • Malathion
    • Agriculture

65 Miles

2010

5B


2024
  • Mercury
    • A Source Unknown

65 Miles

2006

5A

Low

  • Nutrients
    • A Source Unknown

65 Miles

1994

5A

Low

    Regional Board proposes to establish TMDL in cooperation with U.S. EPA and Mexico.
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

65 Miles

2002

5B


2012
  • Oxygen, Dissolved
    • A Source Unknown

65 Miles

2028

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • Agriculture

65 Miles

2006

5A

High

  • Permethrin
    • A Source Unknown

65 Miles

2012

5A

Low

  • Pyrethroids
    • A Source Unknown

65 Miles

2014

5A

High

  • Sediment
    • A Source Unknown

65 Miles

1800

5B


2003
  • Selenium
    • A Source Unknown

65 Miles

1994

5A

Low

  • Toxaphene
    • A Source Unknown

65 Miles

2006

5B


2024
  • Toxicity
    • A Source Unknown

65 Miles

2006

5A

High

  • Trash
    • Out-of-state source

65 Miles

2002

5B


2007


7

Palo Verde Outfall Drain and Lagoon

River & Stream

10715.400000  /  15030104
  • Chloride
    • A Source Unknown

18 Miles

2012

5A

Medium

  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

18 Miles

2020

5C


2023
  • Dieldrin
    • A Source Unknown

18 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

18 Miles

2012

5A

Medium

    This listing was made by USEPA for 2006.
  • Oxygen, Dissolved
    • A Source Unknown

18 Miles

2012

5A

Low

  • Pyrethroids
    • A Source Unknown

18 Miles

2014

5A

Low

  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • A Source Unknown

18 Miles

2014

5A

High

  • Toxaphene
    • Agriculture

18 Miles

2010

5C


2023
  • Toxicity
    • A Source Unknown

18 Miles

2012

5A

Low



7

Potrero Creek

River & Stream

10719.320000  / 
  • Turbidity
    • A Source Unknown

6.8 Miles

2014

5A

Low

    This impairment determination does not apply to tribal waters.


7

Salton Sea

Saline Lake

10719.470000,10721.000000,10722.200000,10723.100000,10725.000000,10728.000000  /  18100200
  • Ammonia
    • A Source Unknown

233045 Acres

2014

5A

Low

  • Arsenic
    • A Source Unknown

233045 Acres

2010

5A

Low

  • Chloride
    • A Source Unknown

233045 Acres

2012

5A

Low

  • Chlorpyrifos
    • A Source Unknown

233045 Acres

2010

5A

Low

  • Cyfluthrin
    • A Source Unknown

233045 Acres

2012

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

233045 Acres

2012

5A

Low

  • Cypermethrin
    • A Source Unknown

233045 Acres

2012

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

233045 Acres

2010

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

233045 Acres

2014

5A

Low

  • Enterococcus
    • A Source Unknown

233045 Acres

2010

5A

Low

  • Imidacloprid
    • A Source Unknown

233045 Acres

2026

5A

Low

  • Low Dissolved Oxygen
    • A Source Unknown

233045 Acres

2010

5A

Medium

  • Malathion
    • A Source Unknown

233045 Acres

2010

5A

Low

  • Nutrients
    • A Source Unknown

233045 Acres

1994

5A

Medium

  • Pyrethroids
    • A Source Unknown

233045 Acres

2014

5A

Low

  • Salinity
    • A Source Unknown

233045 Acres

1998

5A

Low

    TMDL development will not be effective in addressing this problem, which will require an engineering solution with federal, local, and state cooperation.
  • Toxicity
    • A Source Unknown

233045 Acres

2012

5A

Low



7

Sunbeam Lake

Lake & Reservoir

10723.100000  /  18100200
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

9.7 Acres

2014

5A

Low

  • Dieldrin
    • A Source Unknown

9.7 Acres

2012

5A

Low



7

Vail 5A Drain

River & Stream

10723.100000  / 
  • Copper
    • A Source Unknown

2.4 Miles

2026

5A

Low

  • Selenium
    • A Source Unknown

2.4 Miles

2026

5A

Low

  • Toxicity
    • A Source Unknown

2.4 Miles

2026

5A

Low



7

West Branch Millard Canyon Creek

River & Stream

10719.320000  / 
  • Turbidity
    • A Source Unknown

7.9 Miles

2014

5A

Low

    This impairment determination does not apply to tribal waters.


8

Anaheim Bay

Bay & Harbor

80111000  /  18070201
  • Nickel
    • A Source Unknown

402 Acres

2002

5A

Low

    This listing was made by USEPA.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

402 Acres

1800

5A

Low

    This listing was made by USEPA.
  • Toxicity
    • A Source Unknown

402 Acres

2014

5A

Low



8

Balboa Beach

Coastal & Bay Shoreline

4801.110000  /  18070201
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1.8 Miles

2006

5A

Low

  • Dieldrin
    • A Source Unknown

1.8 Miles

2006

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1.8 Miles

2006

5A

Low



8

Big Bear Lake

Lake & Reservoir

4801.710000  /  18070203
  • Anatoxin-A
    • A Source Unknown

2820 Acres

2024

5A

Medium

  • Chlordane
    • A Source Unknown

2820 Acres

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2820 Acres

2014

5A

Low

  • Mercury
    • A Source Unknown

2820 Acres

1994

5A

Low

    Estimated TMDL completion date was updated to 2037.
  • Microcystins
    • A Source Unknown

2820 Acres

2024

5A

Medium

  • Noxious aquatic plants
    • A Source Unknown

2820 Acres

1994

5B


2007
  • Nutrients
    • Construction/Land Development

2820 Acres

1994

5B


2007
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2820 Acres

2006

5A

Low



8

Bolsa Bay Marsh

Estuary

4801.110000  /  18070201
  • Toxicity
    • A Source Unknown

26 Acres

2014

5A

Low



8

Bolsa Chica Channel

River & Stream

4801.110000  /  18070201
  • Ammonia (Unionized)
    • A Source Unknown

5.2 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

5.2 Miles

2010

5A

Low

  • pH
    • A Source Unknown

5.2 Miles

2010

5A

Low



8

Bolsa Chica Ecological Reserve

Estuary

80111000  /  18070201
  • Toxicity
    • A Source Unknown

239 Acres

2014

5A

Low



8

Bolsa Chica State Beach

Coastal & Bay Shoreline

4801.110000  /  18070201
  • Copper
    • A Source Unknown

2.6 Miles

2002

5A

Low

    This listing was made by USEPA.
  • Indicator Bacteria
    • A Source Unknown

2.6 Miles

2014

5A

Low

    While this decision was based on a sufficient number of exceedances of the Total Coliform 90th percentile Objective for the SHEL beneficial use, it should be noted that the Santa Ana Water Board considers this waterbody-pollutant combination lowest priority for TMDL development as the water quality objective for the SHEL beneficial use has been determined by the State Water Board to require updating.
  • Nickel
    • A Source Unknown

2.6 Miles

2002

5A

Low

    This listing was made by USEPA.


8

Bonita Creek

River & Stream

4801.110000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

3.9 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

3.9 Miles

2014

5A

Low



8

Borrego Creek (from Irvine Blvd to San Diego Creek Reach 2)

River & Stream

4801.110000  /  18070203
  • Ammonia (Unionized)
    • A Source Unknown

2.4 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

2.4 Miles

2010

5A

Low



8

Buck Gully Creek

River & Stream

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

0.34 Miles

2014

5A

Medium



8

Chino Creek Reach 1A (Santa Ana River R3 confl to just downstream of confl with Mill Creek)

River & Stream

80121000  /  18070203
  • Indicator Bacteria
    • Agriculture
    • Dairies
    • Urban Runoff/Storm Sewers

0.79 Miles

2014

5B


2007
  • Nutrients
    • A Source Unknown

0.79 Miles

2010

5A

Low



8

Chino Creek Reach 1B (Mill Creek confl to start of concrete lined channel)

River & Stream

4801.210000  /  18070203
  • Bifenthrin
    • A Source Unknown

5.6 Miles

2024

5A

Low

  • Chemical oxygen demand (COD)
    • A Source Unknown

5.6 Miles

2010

5A

Low

    Need more data to verify that delisting is appropriate and that conditions have in fact changed such that the 15 mg/l C.O.D. objective is being met.
  • Indicator Bacteria
    • Agriculture
    • Dairies
    • Urban Runoff/Storm Sewers

5.6 Miles

2014

5B


2007
  • Nutrients
    • A Source Unknown

5.6 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

5.6 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

5.6 Miles

2024

5A

Low



8

Chino Creek Reach 2 (Beginning of concrete channel to confl w San Antonio Creek)

River & Stream

4801.210000  /  18070203
  • Indicator Bacteria
    • Unknown Nonpoint Source

3.8 Miles

2014

5B


2007
  • pH
    • A Source Unknown

3.8 Miles

2010

5A

Low



8

Crystal Cove State Park

Coastal & Bay Shoreline

4801.110000,4801.140000,4901.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

0 Miles

2014

5A

Low

    While this decision was based on a sufficient number of exceedances of the Total Coliform 90th percentile Objective for the SHEL beneficial use, it should be noted that the Santa Ana Water Board considers this waterbody-pollutant combination lowest priority for TMDL development as the water quality objective for the SHEL beneficial use has been determined by the State Water Board to require updating.


8

Cucamonga Creek Reach 1 (Valley Reach)

River & Stream

4801.210000  /  18070203
  • Cadmium
    • A Source Unknown

17 Miles

2010

5A

Low

  • Copper
    • A Source Unknown

17 Miles

2010

5A

Low

  • Lead
    • A Source Unknown

17 Miles

2010

5A

Low

  • Zinc
    • A Source Unknown

17 Miles

2010

5A

Low



8

Cucamonga Creek Reach 2 (Mountain Reach)

River & Stream

4801.240100,4801.240200  /  18070203
  • pH
    • A Source Unknown

7.1 Miles

2010

5A

Low



8

East Garden Grove Wintersburg Channel

River & Stream

4801.110000  /  18070201
  • Ammonia (Unionized)
    • A Source Unknown

7.5 Miles

2010

5A

Low



8

Elsinore, Lake

Lake & Reservoir

4802.310000  /  18070202
  • Ammonia
    • Agriculture-storm runoff
    • Contaminated Sediments
    • Urban Runoff/Storm Sewers
    • Wastewater

3311 Acres

2024

5B


2005
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3311 Acres

2014

5A

Low

  • Microcystins
    • A Source Unknown

3311 Acres

2024

5A

High

  • Nutrients
    • Unknown Nonpoint Source

3311 Acres

1994

5B


2005
  • Organic Enrichment/Low Dissolved Oxygen
    • Unknown Nonpoint Source

3311 Acres

1994

5B


2005
  • Oxygen, Dissolved
    • Unknown Nonpoint Source

3311 Acres

2024

5B


2005
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3311 Acres

2006

5A

Low

  • Toxicity
    • A Source Unknown

3311 Acres

2006

5A

High



8

Fulmor, Lake

Lake & Reservoir

4802.210000  /  18070202
  • Oxygen, Dissolved
    • A Source Unknown

3.2 Acres

2024

5A

Low



8

Glen Helen Regional Park Lakes

Lake & Reservoir

4801.520000  / 
  • Microcystins
    • A Source Unknown

12 Acres

2024

5A

Medium



8

Goldenstar Creek

River & Stream

4801.260000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

2.5 Miles

2010

5A

Medium



8

Grout Creek

River & Stream

4801.710000  /  18070203
  • Nutrients
    • A Source Unknown

3.6 Miles

1994

5A

Low



8

Huntington Beach State Park

Coastal & Bay Shoreline

4801.110000,4801.140000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

2.1 Miles

2006

5A

Low

    While this decision was based on a sufficient number of exceedances of the Total Coliform 90th percentile Objective and the median objective for Total Coliform for the SHEL beneficial use, it should be noted that the Santa Ana Water Board considers this waterbody-pollutant combination lowest priority for TMDL development as the water quality objective for the SHEL beneficial use has been determined by the State Water Board to require updating.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2.1 Miles

2006

5A

Low



8

Huntington City Beach

Coastal & Bay Shoreline

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

3.5 Miles

2014

5A

Low

    While this decision was based on a sufficient number of exceedances of the Total Coliform 90th percentile Objective for the SHEL beneficial use, it should be noted that the Santa Ana Water Board considers this waterbody-pollutant combination lowest priority for TMDL development as the water quality objective for the SHEL beneficial use has been determined by the State Water Board to require updating.


8

Huntington Harbour

Bay & Harbor

4801.110000  /  18070201
  • Chlordane
    • A Source Unknown

373 Acres

2006

5A

Low

  • Copper
    • A Source Unknown

373 Acres

2002

5A

Low

    This listing was made by USEPA.
  • Indicator Bacteria
    • A Source Unknown

373 Acres

2014

5A

Low

    This decision was based on exceedances of the 6-week Enterococcus Geomean Objective at three stations, Mother’s Beach (BHH15), Anderson Street Marina (MHH14) and Sunset Aquatic Marina (MHH07), 70 of 342 samples, 48 of 281 samples, and 65 of 340 samples, respectively. Additionally, 62% of all sampling stations (8 of 13) in Huntington Harbour failed to meet the STV objectives during the period considered for this listing cycle. This is ample evidence that there is a continuing input of fecal contamination that has not yet been identified and mitigated.
  • Lead
    • A Source Unknown

373 Acres

2006

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

373 Acres

2014

5A

Low

    This listing was made by USEPA.
  • Toxicity
    • A Source Unknown

373 Acres

2014

5A

Low



8

Irvine Lake

Lake & Reservoir

4801.120000  /  18070203
  • Mercury
    • A Source Unknown

535 Acres

2014

5A

Low



8

Knickerbocker Creek

River & Stream

4801.710000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

2 Miles

2014

5A

Low

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


8

Lake Hemet

Lake & Reservoir

4802.210000,4802.220000  /  18070202
  • Mercury
    • A Source Unknown

340 Acres

2014

5A

Low



8

Little Corona Del Mar Beach

Coastal & Bay Shoreline

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

0.13 Miles

2014

5A

Low

    While this decision was based on a sufficient number of exceedances of the Total Coliform 90th percentile objective and the Total Coliform median objective for the SHEL beneficial use, it should be noted that the Santa Ana Water Board considers this waterbody-pollutant combination lowest priority for TMDL development as the water quality objective for the SHEL beneficial use has been determined by the State Water Board to require updating.


8

Los Trancos Creek (Crystal Cove Creek)

River & Stream

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

3.2 Miles

2014

5A

Medium



8

Mill Creek (Prado Area)

River & Stream

4801.210000  /  18070203
  • Indicator Bacteria
    • Dairies

1.6 Miles

2014

5B


2007
  • Nutrients
    • A Source Unknown

1.6 Miles

1996

5A

Low

  • Total Suspended Solids (TSS)
    • A Source Unknown

1.6 Miles

1996

5A

Low



8

Mill Creek Reach 1

River & Stream

4801.580000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

8.1 Miles

2014

5A

Low



8

Morning Canyon Creek

River & Stream

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

1.1 Miles

2010

5A

Medium



8

Mountain Home Creek

River & Stream

4801.580000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

3.8 Miles

2014

5A

Medium



8

Mountain Home Creek, East Fork

River & Stream

4801.580000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

5.2 Miles

2014

5A

Medium



8

Newport Bay, Lower (entire lower bay, including Rhine Channel, Turning Basin and South Lido Channel to east end of H-J Moorings)

Bay & Harbor

4801.110000,4801.110000,4801.140000,4801.140000  /  18070201
  • Chlordane
    • See TMDL documentation

107 Acres

2006

5B


2013
  • Copper
    • Marinas and Recreational Boating

107 Acres

2006

5A

High

  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

107 Acres

1990

5B


2013
  • Dieldrin
    • A Source Unknown

107 Acres

2028

5A

High

  • Indicator Bacteria
    • A Source Unknown

107 Acres

2010

5B


2000
  • Nutrients
    • A Source Unknown

107 Acres

1992

5B


1999
  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

107 Acres

1990

5B


2013
  • Toxicity
    • A Source Unknown

107 Acres

2014

5A

Medium



8

Newport Bay, Upper (Ecological Reserve)

Estuary

4801.110000, 4801.140000  /  18070201
  • Chlordane
    • See TMDL documentation

88 Acres

2006

5B


2013
  • Copper
    • Marinas and Recreational Boating

88 Acres

2006

5A

High

  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

88 Acres

2006

5B


2013
  • Indicator Bacteria
    • A Source Unknown

88 Acres

2010

5B


2000
  • Nutrients
    • A Source Unknown

88 Acres

2006

5B


1999
  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

88 Acres

2006

5B


2013
  • Sedimentation/Siltation
    • Agriculture
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation

88 Acres

2006

5B


1999
  • Toxicity
    • A Source Unknown

88 Acres

2014

5A

Medium



8

Newport Beach

Coastal & Bay Shoreline

4801.110000,4801.140000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

3.5 Miles

2014

5A

Low

    While this decision had a sufficient number of exceedances of the Total Coliform 90th percentile objective and the median objective for the SHEL beneficial use, it should be noted that the Santa Ana Water Board considers this waterbody-pollutant combination lowest priority for TMDL development as the water quality objective for the SHEL beneficial use has been determined by the State Water Board to require updating.


8

Newport Slough

River & Stream

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

1 Miles

2014

5A

Low



8

Perris Valley Storm Drain

River & Stream

4802.110000  /  18070202
  • Benthic Community Effects
    • A Source Unknown

7 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7 Miles

2024

5A

Low

    While this Decision was based on a sufficient number of exceedances of the E.coli statistical threshold value (STV) objective, this objective was only used because of the lack of any lines of evidence for the 6-week E.coli geomean objective. When representative 6-week geomean values are of sufficient sample size to assess impairment, the decision will be reassessed using the 6-week geomean LOE.
  • Iron
    • A Source Unknown

7 Miles

2024

5A

Low

  • Oil and Grease
    • A Source Unknown

7 Miles

2024

5A

Low



8

Perris, Lake

Lake & Reservoir

4802.110000  /  18070202
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1922 Acres

2014

5A

Low



8

Peters Canyon Wash (Orange County)

River & Stream

4801.110000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

6.8 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

6.8 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

6.8 Miles

2006

5B


2013
  • Indicator Bacteria
    • A Source Unknown

6.8 Miles

2010

5A

Low

  • Malathion
    • A Source Unknown

6.8 Miles

2014

5A

Low

  • Selenium
    • Natural Sources

6.8 Miles

2014

5B


2019
  • Toxaphene
    • See TMDL documentation

6.8 Miles

2006

5B


2013
  • Toxicity
    • A Source Unknown

6.8 Miles

2014

5A

Medium

  • pH
    • A Source Unknown

6.8 Miles

2010

5A

Low



8

Prado Basin Management Zone

Wetland, Freshwater

4801.210000,4801.250000  /  18070203
  • pH
    • A Source Unknown

11105 Acres

2014

5A

Low



8

Prado Park Lake

Lake & Reservoir

4801.210000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

59 Acres

2014

5B


2007
    As a result of revisions to Region 8's Basin Plan, Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. It should be noted that these Enterococcus, Fecal Coliform and Total Coliform LOEs will be retired.
  • Microcystins
    • A Source Unknown

59 Acres

2024

5A

Medium

  • Nutrients
    • A Source Unknown

59 Acres

1998

5A

Low



8

Rathbone (Rathbun) Creek

River & Stream

4801.710000  /  18070203
  • Cadmium
    • A Source Unknown

4.8 Miles

2010

5A

Low

  • Copper
    • A Source Unknown

4.8 Miles

2010

5A

Low

  • Nutrients
    • A Source Unknown

4.8 Miles

1994

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

4.8 Miles

1994

5A

Low



8

Rattlesnake Reservoir (Orange County)

Lake & Reservoir

4801.110000  / 
  • pH
    • A Source Unknown

36 Acres

2024

5A

Low



8

Rhine Channel

Bay & Harbor

4801.110000,4801.140000  /  18070201
  • Copper
    • A Source Unknown

29 Acres

2006

5A

High

  • Lead
    • A Source Unknown

29 Acres

2006

5A

Low

  • Mercury
    • A Source Unknown

29 Acres

2006

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

29 Acres

2006

5A

Low

  • Toxicity
    • A Source Unknown

29 Acres

2014

5A

Medium

  • Zinc
    • A Source Unknown

29 Acres

2006

5A

Low



8

San Antonio Creek

River & Stream

4481.210000,4481.220000,4481.230100,4481.230100,4481.230100,4481.230200,4801.210000,4801.230100,4801.230100,4801.230100,(Total Count: 11)  /  18070203
  • pH
    • A Source Unknown

22 Miles

2010

5A

Low



8

San Diego Creek Reach 1

River & Stream

4801.110000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

8.6 Miles

2014

5A

Medium

  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

8.6 Miles

2014

5B


2013
  • Indicator Bacteria
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

8.6 Miles

2024

5A

Medium

  • Nutrients
    • A Source Unknown

8.6 Miles

1996

5B


1999
  • Pyrethroids
    • A Source Unknown

8.6 Miles

2024

5A

Medium

  • Sedimentation/Siltation
    • A Source Unknown

8.6 Miles

1996

5B


1999
  • Selenium
    • A Source Unknown

8.6 Miles

2006

5A

Medium

  • Toxaphene
    • See TMDL documentation

8.6 Miles

2006

5B


2013
  • Toxicity
    • Unknown Nonpoint Source

8.6 Miles

2014

5B


2004


8

San Diego Creek Reach 2

River & Stream

4801.110000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

5 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

5 Miles

2010

5A

Low

    While this Decision was based on a sufficient number of exceedances the of E. coli Single Sample objective, it should be noted that when representative 30-day, 5-sample Geomean values are collected the Single Sample E. coli LOE will be retired.
  • Nutrients
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

5 Miles

1996

5B


1999
  • Sedimentation/Siltation
    • Agriculture
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation

5 Miles

1996

5B


1999
  • Toxicity
    • Unknown Nonpoint Source

5 Miles

2014

5B


2004
    Although the diazinon/chlorpyrifos TMDL was developed and implemented to also address unknown toxicity; new data assessed suggests that the pollutants addressed in this TMDL were not the only pollutants causing toxicity. The toxicity LOE (82244) states that the toxicity tests that exhibited significant toxicity included Ceriodaphnia reproduction and Hyallela survival. Toxicity to hyallela could suggest pyrethroid-related toxicity.


8

San Jacinto River, Reach 1 (Lake Elsinore to Canyon Lake (Railroad Canyon Reservoir)

River & Stream

4802.110000,4802.310000,4802.320000  /  18070202
  • Benthic Community Effects
    • A Source Unknown

6.9 Miles

2014

5A

Low



8

San Timoteo Creek Reach 1A (Santa Ana River to Confluence to Barton Rd)

River & Stream

4801.520000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5A

Low



8

San Timoteo Creek Reach 2 (Gage at San Timoteo to confluence with Yucaipa Creek)

River & Stream

4801.610000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

4.7 Miles

2014

5A

Low



8

San Timoteo Creek Reach 3 (Yucaipa Creek to Headwaters)

River & Stream

4801.610000,4801.620000,4801.620000  /  18070202
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

Low

    This Decision was based on a sufficient number of exceedances of the E. coli Geomean objective to trigger a 'Not Supporting' listing. The Region 8 Basin Plan states that where a representative E. coli geometric mean can be calculated, single sample maximum values shall not be used for assessment (page 4-17, footnote 3), therefore the E. coli single sample maximum objective LOE was not used in the Final Use Rating. It should also be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Total Coliform LOEs will be retired.


8

Sand Canyon Reservoir (Orange County)

Lake & Reservoir

4801.110000  / 
  • pH
    • A Source Unknown

24 Acres

2024

5A

Low



8

Santa Ana River Reach 6

River & Stream

4801.570000,4801.720000  /  18070203
  • Cadmium
    • A Source Unknown

23 Miles

2010

5A

Low

  • Copper
    • A Source Unknown

23 Miles

2010

5A

Low

  • Iron
    • A Source Unknown

23 Miles

2010

5A

Low

  • Lead
    • A Source Unknown

23 Miles

2010

5A

Low



8

Santa Ana River, Reach 2

River & Stream

4801.110000,4801.130000,4801.150000,4801.210000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

25 Miles

2024

5A

Low



8

Santa Ana River, Reach 3

River & Stream

4801.210000,4801.210000,4801.210000,4801.210000,4801.270000  /  18070203
  • Benthic Community Effects
    • A Source Unknown

28 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

28 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

28 Miles

2010

5A

Low

  • Indicator Bacteria
    • Dairies

28 Miles

2014

5B


2007
  • Lead
    • A Source Unknown

28 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

28 Miles

2024

5A

Low

  • Toxicity
    • A Source Unknown

28 Miles

2014

5A

Low



8

Santa Ana River, Reach 4

River & Stream

4801.270000,4801.440000  /  18070203
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

7.4 Miles

2024

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7.4 Miles

2014

5A

Low

  • Oil and Grease
    • A Source Unknown

7.4 Miles

2024

5A

Low



8

Santiago Creek, Reach 4

River & Stream

4801.120000  /  18070203
  • Salinity/TDS/Chlorides
    • A Source Unknown

11 Miles

1996

5A

Low

  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low



8

Seal Beach (Orange County)

Coastal & Bay Shoreline

4405.120000,4405.120000,4405.150000,4405.150000,4412.100000,4801.110000,4801.110000,4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

1.6 Miles

2014

5A

Low

    REC-1 beneficial use impairment at OSB02 and OSB03. While this decision was based on a sufficient number of exceedances of the Total Coliform 90th percentile objective and the median objective for the SHEL beneficial use, it should be noted that the Santa Ana Water Board considers this waterbody-pollutant combination lowest priority for TMDL development as the water quality objective for the SHEL beneficial use has been determined by the State Water Board to require updating.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1.6 Miles

2006

5A

Low



8

Serrano Creek

River & Stream

4801.110000  /  18070201
  • Ammonia (Unionized)
    • A Source Unknown

7.4 Miles

2010

5A

Low

  • Benthic Community Effects
    • A Source Unknown

7.4 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7.4 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

7.4 Miles

2014

5A

Low

  • pH
    • A Source Unknown

7.4 Miles

2010

5A

Low



8

Silverado Creek

River & Stream

4801.120000  /  18070203
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2014

5A

Low

  • Salinity/TDS/Chlorides
    • A Source Unknown

11 Miles

1996

5A

Low

  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

Low



8

Siphon Reservoir (Orange County)

Lake & Reservoir

4801.110000  / 
  • pH
    • A Source Unknown

24 Acres

2024

5A

Low



8

Summit Creek

River & Stream

80171000  /  18070203
  • Nutrients
    • A Source Unknown

1.6 Miles

1998

5A

Low



8

Sunset Beach

Coastal & Bay Shoreline

4405.120000,4405.150000,4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

1.8 Miles

2014

5A

Low

    While this decision was based on a sufficient number of exceedances of the Total Coliform 90th percentile objective for the SHEL beneficial use, it should be noted that the Santa Ana Water Board considers this waterbody-pollutant combination lowest priority for TMDL development as the water quality objective for the SHEL beneficial use has been determined by the State Water Board to require updating.


8

Talbert Channel (Orange County)

River & Stream

4801.110000  /  18070201
  • Toxicity
    • A Source Unknown

5.5 Miles

2014

5A

Low



8

Temescal Creek, Reach 1a

River & Stream

4801.250000  / 
  • Copper
    • A Source Unknown

1.7 Miles

2024

5A

Low

  • Iron
    • A Source Unknown

1.7 Miles

2024

5A

Low

  • Malathion
    • A Source Unknown

1.7 Miles

2024

5A

Low

  • Oil and Grease
    • A Source Unknown

1.7 Miles

2024

5A

Low



8

Veeh Reservoir (Orange County)

Lake & Reservoir

4801.110000  / 
  • Mercury
    • A Source Unknown

9 Acres

2024

5A

Low



8

Warm Creek

River & Stream

4801.440000,4801.520000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

7.1 Miles

2014

5A

Low

    This Decision was based on a sufficient number of exceedances of the E. coli Geomean objective to trigger a 'Not Supporting' listing. The Region 8 Basin Plan states that where a representative E. coli geometric mean can be calculated, single sample maximum values shall not be used for assessment (page 4-17, footnote 3), therefore the E. coli single sample maximum objective LOE was not used in the Final Use Rating. It should also be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Total Coliform LOEs will be retired. In addition, as representative E. coli geometric means exist, the E. coli single sample maximum LOE will also be retired.


8

Yucaipa Regional Park Lakes

Lake & Reservoir

4801.650000  / 
  • Microcystins
    • A Source Unknown

21 Acres

2024

5A

Medium



9

Adobe Creek (Riverside County)

River & Stream

90221000  /  18070302
  • Bifenthrin
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Esfenvalerate/Fenvalerate
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

1.2 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Manganese
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

1.2 Miles

2020

5A

Low

  • Turbidity
    • A Source Unknown

1.2 Miles

2020

5A

Low



9

Agua Hedionda Creek

River & Stream

4904.310000,4904.320000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

8.6 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Deltamethrin
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Manganese
    • A Source Unknown

8.6 Miles

2006

5A

Low

  • Nitrogen
    • A Source Unknown

8.6 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

8.6 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

8.6 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown

8.6 Miles

2006

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

8.6 Miles

2002

5A

Low

  • Toxicity
    • A Source Unknown

8.6 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

8.6 Miles

2028

5A

Low



9

Aliso Creek

River & Stream

4901.130000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

19 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

19 Miles

2002

5B


2011
    This listing for indicator bacteria applies to the Aliso Creek mainstem and all the major tributaries of Aliso Creek which are Sulphur Creek, Wood Canyon, Aliso Hills Canyon, Dairy Fork, and English Canyon.
  • Malathion
    • A Source Unknown

19 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

19 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

19 Miles

2002

5A

Low

    This listing for phosphorus applies to the Aliso Creek mainstem and all the major tributaries of Aliso Creek which are Sulphur Creek, Wood Canyon, Aliso Hills Canyon, Dairy Fork, and English Canyon.
  • Selenium
    • A Source Unknown

19 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

19 Miles

2002

5A

Low

    This listing for toxicity applies to the Aliso Creek mainstem and all the major tributaries of Aliso Creek which are Sulphur Creek, Wood Canyon, Aliso Hills Canyon, Dairy Fork, and English Canyon.


9

Aliso Creek (mouth)

Estuary

4901.130000, 4901.140000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.04 Acres

1990

5B


2011
    LOEs 30623, 30625, 30614, 30616, 30619, and 30620 will be linked to this listing decision in the next cycle.
  • Toxicity
    • A Source Unknown

0.04 Acres

2014

5A

Low

    Due to mapping issues, historical LOE # 21397 will be linked to this decision for the listing of toxicity in the next cycle.


9

Alpine Creek

River & Stream

90733000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

5.6 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform
  • Nitrogen
    • A Source Unknown

5.6 Miles

2020

5A

Low



9

Alvarado Creek

River & Stream

90711000  /  18070304
  • Nitrogen
    • A Source Unknown

5.4 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

5.4 Miles

2010

5A

Low



9

Aqua Hedionda Lagoon

Estuary

4904.310000  /  18070303
  • Toxicity
    • A Source Unknown

0.91 Acres

2014

5A

Low

    The data for this listing decision pre-dates the Sediment Quality Objectives and will be re-assessed in the future in accordance with the Sediment Quality Objectives which requires a multiple line of evidence analysis of chemistry, toxicity and biological data. The current impairment due to Toxicity in sediment is based on data collected in the eastern portion of the lagoon. Data collected from the outer and middle portions of the lagoon do not indicate impairment. This waterbody may be divided into two segments, the eastern lagoon and the western lagoon. This waterbody segmentation could be proposed as part of a future Integrated Report cycle and should be based on an analysis of land use and hydrology consistent with Section 6.1.5.4 of the Listing Policy.


9

Arroyo Trabuco Creek, Lower

River & Stream

4901.210000,4901.220000,4901.230000,4901.270000  / 
  • Benthic Community Effects
    • A Source Unknown

17 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

17 Miles

2020

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform
  • Nitrogen
    • A Source Unknown

17 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown
    • Natural Sources
    • Urban Runoff/Storm Sewers

17 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

17 Miles

2020

5A

Low



9

Arroyo Trabuco Creek, Upper

River & Stream

4901.220000  / 
  • Toxicity
    • A Source Unknown

6.9 Miles

2020

5A

Low



9

Barrett Lake

Lake & Reservoir

91130000  /  18070305
  • Color
    • A Source Unknown

612 Acres

2006

5A

Low

  • Manganese
    • A Source Unknown

612 Acres

2006

5A

Low

  • Perchlorate
    • A Source Unknown

612 Acres

2010

5A

Low

  • Phosphorus
    • A Source Unknown

612 Acres

2010

5A

Low

  • Total Nitrogen as N
    • A Source Unknown

612 Acres

2010

5A

Low

  • pH
    • A Source Unknown

612 Acres

2006

5A

Low



9

Batiquitos Lagoon

Estuary

4904.310000,4904.400000,4904.510000  /  18070303
  • Toxicity
    • A Source Unknown

571 Acres

2014

5A

Low



9

Bell Canyon Creek

River & Stream

90120000  /  18070301
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

Low



9

Buena Creek

River & Stream

4904.320000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

4.9 Miles

2020

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

4.9 Miles

2006

5A

Low

  • Indicator Bacteria
    • A Source Unknown

4.9 Miles

2014

5A

Low

    The indicator bacteria listed for include enterococcus and fecal coliform
  • Nitrate and Nitrite
    • A Source Unknown

4.9 Miles

2006

5A

Low

  • Nitrogen
    • A Source Unknown

4.9 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

4.9 Miles

2010

5A

Low

  • Sulfates
    • A Source Unknown

4.9 Miles

2028

5A

Low



9

Buena Vista Creek

River & Stream

90421000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

9.4 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

9.4 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

9.4 Miles

2020

5A

Low

  • Cypermethrin
    • A Source Unknown

9.4 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

9.4 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

9.4 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

9.4 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

9.4 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown

9.4 Miles

2010

5A

Low

    The exceedance rate in LOE 6549 should be 4 over 4, and this change will be made in the next cycle.
  • Total Dissolved Solids
    • A Source Unknown

9.4 Miles

2028

5A

Low

  • Toxicity
    • A Source Unknown

9.4 Miles

2014

5A

Low



9

Buena Vista Lagoon

Estuary

90421000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

202 Acres

1996

5A

Low

  • Nutrients
    • A Source Unknown

202 Acres

1996

5A

Low

    Estimated size of impairment is 150 acres located in upper portion of lagoon.
  • Sedimentation/Siltation
    • A Source Unknown

202 Acres

1996

5A

Low

  • Toxicity
    • A Source Unknown

202 Acres

2014

5A

Low



9

Campo Creek

River & Stream

91182000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

6.6 Miles

2014

5A

Low

    The indicator bacteria listed is enterococcus.
  • Nitrogen
    • A Source Unknown

6.6 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

6.6 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

6.6 Miles

2020

5A

Low



9

Carmel Valley Creek

River & Stream

4906.100000  / 
  • Benthic Community Effects
    • A Source Unknown

3.4 Miles

2020

5A

Low

  • Bifenthrin
    • A Source Unknown

3.4 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

3.4 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

3.4 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

3.4 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

3.4 Miles

2020

5A

Low



9

Carroll Canyon

River & Stream

4906.100000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

13 Miles

2010

5A

Low

  • Cyfluthrin
    • A Source Unknown

13 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

13 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

Low



9

Chocolate Creek

River & Stream

4907.310000,4907.330000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

4.7 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform
  • Nitrogen
    • A Source Unknown

4.7 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

4.7 Miles

2010

5A

Low



9

Chollas Creek

River & Stream

90822000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

33 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

33 Miles

2014

5A

Low

  • Copper
    • A Source Unknown

33 Miles

1996

5B


2008
  • Cyfluthrin
    • A Source Unknown

33 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

33 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

33 Miles

2014

5A

Low

  • Dichlorvos
    • A Source Unknown

33 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

33 Miles

2002

5B


2011
  • Lead
    • A Source Unknown

33 Miles

1996

5B


2008
  • Malathion
    • A Source Unknown

33 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

33 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

33 Miles

2020

5A

Low

  • Permethrin
    • A Source Unknown

33 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

33 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

33 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

33 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

33 Miles

2020

5A

Low

  • Trash
    • A Source Unknown

33 Miles

2010

5A

Low

  • Zinc
    • A Source Unknown
    • Agriculture-grazing

33 Miles

1996

5B


2007


9

Cloverdale Creek

River & Stream

4905.320000  /  18070304
  • Nitrogen
    • A Source Unknown

1.8 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

1.8 Miles

2002

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

1.8 Miles

2002

5A

Low



9

Cottonwood Creek (San Marcos Creek watershed)

River & Stream

4904.510000,4904.610000  /  18070303
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Other
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

1.2 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1.2 Miles

2006

5A

Low

  • Nitrogen
    • A Source Unknown

1.2 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

1.2 Miles

2006

5A

Low

  • Selenium
    • A Source Unknown

1.2 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

1.2 Miles

2014

5A

Low



9

Cottonwood Creek above Morena Reservoir

River & Stream

4911.500000,4911.600000  / 
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2020

5A

Low

    The indicator bacteria listed is enterococcus.


9

Cottonwood Creek below Barrett Reservoir

River & Stream

4911.230000  / 
  • Selenium
    • A Source Unknown

12 Miles

2020

5A

Low



9

Couser Canyon Creek

River & Stream

90321000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5A

Low

    The indicator bacteria listed is enterococcus for REC-1.


9

Cristianitos Creek

River & Stream

90140000  /  18070301
  • Cadmium
    • A Source Unknown

7.3 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7.3 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and E. coli.
  • Selenium
    • A Source Unknown

7.3 Miles

2014

5A

Low



9

Dana Point Harbor

Bay & Harbor

4901.140000, 4901.270000, 4901.310000  /  18070301
  • Copper
    • A Source Unknown
    • Marinas and Recreational Boating
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

16 Acres

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

16 Acres

2002

5A

Low

    The listed indicator bacteria is total coliform for SHELL.
  • Oxygen, Dissolved
    • A Source Unknown

16 Acres

2014

5A

Low

  • Toxicity
    • A Source Unknown

16 Acres

2010

5A

Low

  • Zinc
    • A Source Unknown

16 Acres

2010

5A

Low



9

De Luz Creek

River & Stream

90221000  /  18070302
  • Iron
    • A Source Unknown

14 Miles

2006

5A

Low

  • Manganese
    • A Source Unknown

14 Miles

2006

5A

Low

  • Nitrogen
    • A Source Unknown

14 Miles

2028

5A

Low

  • Sulfates
    • A Source Unknown

14 Miles

2028

5A

Low



9

De Luz Creek, unnamed tributary at De Luz Murrieta Road

River & Stream

90221000  /  18070302
  • Chloride
    • A Source Unknown

9.1 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

9.1 Miles

2020

5A

Low

  • Sulfates
    • A Source Unknown

9.1 Miles

2020

5A

Low



9

Diamond Valley Lake

Lake & Reservoir

4902.350000,4902.360000  / 
  • Mercury
    • A Source Unknown

4083 Acres

2020

5A

Low



9

East Channel Creek

River & Stream

90311000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

3.1 Miles

2014

5A

Low

    The indicator bacteria listed is enterococcus.


9

El Capitan Lake

Lake & Reservoir

4907.150000,4907.310000  /  18070304
  • Color
    • A Source Unknown

1479 Acres

2006

5A

Low

  • Manganese
    • A Source Unknown

1479 Acres

2006

5A

Low

  • Mercury
    • A Source Unknown

1479 Acres

2028

5A

Low

  • Phosphorus
    • A Source Unknown

1479 Acres

2010

5A

Low

  • Total Nitrogen as N
    • A Source Unknown

1479 Acres

2010

5A

Low



9

Encinitas Creek

River & Stream

4904.510000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

4.6 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

4.6 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

4.6 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

4.6 Miles

2006

5A

Low

  • Selenium
    • A Source Unknown

4.6 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

4.6 Miles

2010

5A

Low



9

English Canyon

River & Stream

4901.130000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

3 Miles

2014

5A

Low

  • Benzo[b]fluoranthene
    • A Source Unknown

3 Miles

2006

5A

Low

  • Dieldrin
    • A Source Unknown

3 Miles

2006

5A

Low

  • Phosphorus
    • A Source Unknown

3 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

3 Miles

2010

5A

Low

  • Total Nitrogen as N
    • A Source Unknown

3 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

3 Miles

2014

5A

Low



9

Escondido Creek

River & Stream

90462000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

21 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

21 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

21 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

21 Miles

2014

5A

Low

  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

21 Miles

2006

5A

Low

  • Indicator Bacteria
    • A Source Unknown

21 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

21 Miles

2014

5A

Low

  • Manganese
    • A Source Unknown

21 Miles

2006

5A

Low

  • Nitrogen
    • A Source Unknown

21 Miles

2014

5A

Low

  • Phosphate
    • A Source Unknown

21 Miles

2006

5A

Low

  • Phosphorus
    • A Source Unknown

21 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

21 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown

21 Miles

2006

5A

Low

  • Sulfates
    • A Source Unknown

21 Miles

2006

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

21 Miles

2006

5A

Low

  • Toxicity
    • A Source Unknown

21 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

21 Miles

2028

5A

Low



9

Eucalyptus Hills Creek

River & Stream

90712000  /  18070304
  • Diazinon
    • A Source Unknown

2.9 Miles

2014

5A

Low

  • Indicator Bacteria
    • Urban Runoff/Storm Sewers

2.9 Miles

2014

5A

Low



9

Famosa Slough and Channel

Estuary

90711000  /  18070304
  • Eutrophic
    • Urban Runoff/Storm Sewers

32 Acres

1990

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

32 Acres

2020

5A

Low



9

Felicita Creek

River & Stream

4905.210000, 4905.230000  /  18070304
  • 1,4-Dioxane
    • Hazardous Waste

3.6 Miles

2014

5A

Low

    This listing decision is for "North Felicita Creek". Due to mapping issues, "North Felicita Creek" will be generated in the database next cycle.
  • Aluminum
    • A Source Unknown

3.6 Miles

2006

5A

Low

  • Indicator Bacteria
    • A Source Unknown

3.6 Miles

2014

5A

Low

    The indicator bacteria listed is enterococcus for REC-1.
  • Tetrachloroethylene/PCE
    • Industrial Point Sources

3.6 Miles

2014

5A

Low

    This listing decision is for North Felicita Creek. Due to mapping issue in database, the waterbody segment of "North Fecilita Creek" will be generated in next cycle.
  • Total Dissolved Solids
    • A Source Unknown

3.6 Miles

2002

5A

Low

  • Trichloroethylene/TCE
    • Industrial Point Sources

3.6 Miles

2014

5A

Low

    This listing decision is for "North Felicita Creek". Due to mapping issues, "North Felicita Creek" will be generated in the database next cycle.


9

Forester Creek

River & Stream

90712000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

11 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5B


2011
  • Nitrogen
    • A Source Unknown

11 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2006

5A

Low

  • Phosphorus
    • A Source Unknown

11 Miles

2006

5A

Low

  • Selenium
    • A Source Unknown

11 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

11 Miles

2002

5A

Low

    Impairment Located at lower 1 mile.
  • Turbidity
    • A Source Unknown

11 Miles

2028

5A

Low



9

Gomez Creek

River & Stream

90321000  /  18070303
  • Nitrogen
    • A Source Unknown

5.1 Miles

2020

5A

Low



9

Gopher Creek

River & Stream

90331000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

4.3 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform.


9

Green Canyon Creek

River & Stream

90312000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

5.4 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus, fecal coliform, and total coliform.


9

Green Valley Creek

River & Stream

90521000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

5.1 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

5.1 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

5.1 Miles

2006

5A

Low

  • Chlorpyrifos
    • A Source Unknown

5.1 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

5.1 Miles

2020

5A

Low

  • Manganese
    • A Source Unknown

5.1 Miles

2006

5A

Low

  • Nitrogen
    • A Source Unknown

5.1 Miles

2020

5A

Low

  • Pentachlorophenol (PCP)
    • A Source Unknown

5.1 Miles

2006

5A

Low

  • Pyrethroids
    • A Source Unknown

5.1 Miles

2020

5A

Low

  • Sulfates
    • A Source Unknown

5.1 Miles

2002

5A

Low

  • Total Nitrogen as N
    • A Source Unknown

5.1 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

5.1 Miles

2020

5A

Low



9

Guajome Lake

Lake & Reservoir

90311000  /  18070303
  • Eutrophic
    • A Source Unknown

18 Acres

1996

5A

Low



9

Harbison Canyon

River & Stream

90923000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

3.6 Miles

2014

5A

Low

    The indicator bacteria listed is enterococcus for REC-1.


9

Jamacha Creek

River & Stream

90921000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

2.1 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and total coliform for REC-1.


9

Jamul Creek

River & Stream

91033000  /  18070304
  • Toxicity
    • A Source Unknown

11 Miles

2010

5A

Low



9

Keys Creek

River & Stream

90312000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform for REC-1
  • Nitrogen
    • A Source Unknown

13 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

13 Miles

2010

5A

Low



9

Kit Carson Creek

River & Stream

4905.210000,4905.240000  /  18070304
  • Pentachlorophenol (PCP)
    • A Source Unknown

4.8 Miles

2006

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

4.8 Miles

2002

5A

Low



9

La Zanja Canyon

River & Stream

90511000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

4.7 Miles

2014

5A

Low

    The indicator bacteria listed is enterococcus for REC-1.


9

Laguna Canyon Channel

River & Stream

90112000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

5.7 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

5.7 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform for REC-1.
  • Phosphorus
    • A Source Unknown

5.7 Miles

2010

5A

Low

  • Total Nitrogen as N
    • A Source Unknown

5.7 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

5.7 Miles

2010

5A

Low



9

Lake Hodges

Lake & Reservoir

4905.110000,4905.210000  /  18070304
  • Color
    • A Source Unknown

588 Acres

2002

5A

Low

  • Manganese
    • A Source Unknown

588 Acres

2006

5A

Low

  • Mercury
    • A Source Unknown

588 Acres

1800

5A

Low

  • Nitrogen
    • A Source Unknown

588 Acres

2002

5A

Low

  • Phosphorus
    • A Source Unknown

588 Acres

2002

5A

Low

  • Turbidity
    • A Source Unknown

588 Acres

2006

5A

Low

  • pH
    • A Source Unknown

588 Acres

2006

5A

Low



9

Lake Jennings

Lake & Reservoir

4907.120000  / 
  • Mercury
    • A Source Unknown

158 Acres

2020

5A

Low



9

Lake San Marcos

Lake & Reservoir

4904.520000,4904.520000,4904.520000  /  18070303
  • Ammonia as Nitrogen
    • A Source Unknown

56 Acres

2006

5A

Low

  • Copper
    • A Source Unknown

56 Acres

2014

5A

Low

  • Nutrients
    • A Source Unknown

56 Acres

2006

5A

Low

  • Phosphorus
    • A Source Unknown

56 Acres

2006

5A

Low



9

Live Oak Creek (San Diego County)

River & Stream

90312000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

2.6 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus, fecal coliform, and total coliform.


9

Loma Alta Creek

River & Stream

4902.110000,4903.110000,4904.100000,4904.210000,4904.310000  /  18070303
  • Benthic Community Effects
    • A Source Unknown
    • Contaminated Sediments
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

7.2 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

7.2 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

7.2 Miles

2020

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

7.2 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7.2 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

7.2 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

7.2 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

7.2 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown

7.2 Miles

2010

5A

Low

    In LOE 8875, the exceedance rate should be 4 over 4, and this change will be updated in next cycle of assessment.
  • Toxicity
    • A Source Unknown

7.2 Miles

2010

5A

Low



9

Loma Alta Slough

Estuary

4902.110000, 4903.110000, 4904.100000, 4904.100000, 4904.210000, 4904.310000  /  18070303
  • Eutrophic
    • Urban Runoff/Storm Sewers

1.1 Acres

1996

5A

Low

    On June 26, 2014 The San Diego Regional Water Quality Control Board (San Diego Water Board) adopted Resolution No. R9-2014-0020 - Resolution of Commitment to an Alternative Process for Achieving Water Quality Objectives for Biostimulatory Substances in Loma Alta Slough which sets the path forward to eliminate the excessive algal growth in Loma Alta Slough in Oceanside by using an existing regional stormwater permit designed to provide safe, cleaner water for the region. With this action, the San Diego Water Board chose a practical, measureable, and timely approach for directing actions to remedy the Slough through a productive collaboration with the community to address an important water quality challenge.
  • Indicator Bacteria
    • Urban Runoff/Storm Sewers

1.1 Acres

1996

5A

Low



9

Long Canyon Creek (Lower Sweetwater Watershed)

River & Stream

90912000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

1.4 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus.


9

Long Canyon Creek (tributary to Murrieta Creek)

River & Stream

4902.320000  /  18070302
  • Chlorpyrifos
    • A Source Unknown

5.6 Miles

2010

5A

Low

  • Iron
    • A Source Unknown

5.6 Miles

2010

5A

Low

  • Manganese
    • A Source Unknown

5.6 Miles

2010

5A

Low

  • Nitrogen
    • A Source Unknown

5.6 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

5.6 Miles

2010

5A

Low



9

Los Coches Creek

River & Stream

4907.120000,4907.140000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

9.4 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

9.4 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

9.4 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

9.4 Miles

2010

5A

Low



9

Los Penasquitos Creek

River & Stream

90610000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Contaminated Sediments
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

12 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

12 Miles

2014

5A

Low

  • Cypermethrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

12 Miles

2014

5A

Low

  • Permethrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • Phosphate
    • A Source Unknown

12 Miles

2006

5A

Low

  • Phosphorus
    • A Source Unknown

12 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

12 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

12 Miles

2006

5A

Low

  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

Low

    See Decision numbers 43909 , 47497 , 47501 , 47517 , 47555 for potential pollutant sources of water toxicity.


9

Los Penasquitos Lagoon

Estuary

4906.100000  /  18070304
  • Sedimentation/Siltation
    • A Source Unknown
    • Channel Erosion
    • Channelization
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Streambank Modification/Destabilization
    • Urban Runoff/Storm Sewers

246 Acres

1992

5B


2014
    On June 13, 2014, the San Diego Water Board conducted a public hearing and adopted the Resolution No. R9-2012-0033 which amended the Basin Plan to include the Los Peñasquitos Sediment TMDL. The State Water Resources Control Board adopted Resolution No. 2014-0001 on January 21, 2014 to incorporate the Los Peñasquitos Sediment TMDL into the Basin Plan. The Office of Administrative Law approved the Los Peñasquitos Sediment TMDL Basin Plan Amendment on July 14, 2014. The USEPA approved the Los Peñasquitos Sediment TMDL Basin Plan Amendment on October 30, 2014.
  • Toxicity
    • A Source Unknown

246 Acres

2014

5A

Low



9

Loveland Reservoir

Lake & Reservoir

90931000  /  18070304
  • Aluminum
    • A Source Unknown

368 Acres

2006

5A

Low

  • Manganese
    • A Source Unknown

368 Acres

2006

5A

Low

  • Mercury
    • A Source Unknown

368 Acres

2028

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

368 Acres

2006

5A

Low

  • pH
    • A Source Unknown

368 Acres

2006

5A

Low

    This listing was made by USEPA for 2006.


9

Lusardi Creek

River & Stream

4905.110000,4905.120000  / 
  • Benthic Community Effects
    • A Source Unknown

5.3 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

5.3 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

5.3 Miles

2020

5A

Low



9

Margarita Glen

River & Stream

4902.220000  / 
  • Nitrogen
    • A Source Unknown

1.1 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

1.1 Miles

2020

5A

Low

  • Sulfates
    • A Source Unknown

1.1 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

1.1 Miles

2020

5A

Low



9

Mexican Canyon Creek (eastern tributary to Sweetwater River, Upper)

River & Stream

90921000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

4.8 Miles

2014

5A

Low

    The indicator bacterial listed include enterococcus.


9

Mexican Canyon Creek (western tributary to Sweetwater River, Upper)

River & Stream

90921000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

3.5 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus.


9

Mission Bay

Bay & Harbor

4906.300000,4906.400000,4906.500000,4906.600000,4906.700000,4906.800000  /  0000000
  • Mercury
    • A Source Unknown
    • Atmospheric Deposition

2695 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2695 Acres

2014

5A

Low



9

Mission Bay (area at mouth of Rose Creek only)

Bay & Harbor

4906.400000, 4906.800000  /  18070304
  • Eutrophic
    • A Source Unknown

1.2 Acres

1996

5A

Low

  • Lead
    • A Source Unknown

1.2 Acres

1996

5A

Low



9

Mission Bay (area at mouth of Tecolote Creek only)

Bay & Harbor

4906.500000, 4906.700000, 4906.800000  /  18070304
  • Eutrophic
    • A Source Unknown

0.41 Acres

1996

5A

Low

  • Lead
    • A Source Unknown

0.41 Acres

1996

5A

Low



9

Mission Bay Shoreline, at Bonita Cove

Coastal & Bay Shoreline

4906.300000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.71 Miles

2014

5A

Low



9

Mission Bay Shoreline, at Bonita Cove (eastern shore)

Coastal & Bay Shoreline

4906.300000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.44 Miles

2014

5A

Low



9

Mission Bay Shoreline, at Campland

Coastal & Bay Shoreline

90640000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.19 Miles

2014

5A

Low



9

Mission Bay Shoreline, at De Anza Cove

Coastal & Bay Shoreline

4906.400000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

1.2 Miles

2014

5A

Low



9

Mission Bay Shoreline, at Fanual Park

Coastal & Bay Shoreline

4906.300000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.72 Miles

2014

5A

Low



9

Mission Bay Shoreline, at Fiesta Island northwest shore

Coastal & Bay Shoreline

4906.700000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

1.6 Miles

2014

5A

Low



9

Mission Bay Shoreline, at Leisure Lagoon

Coastal & Bay Shoreline

4906.400000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.22 Miles

2014

5A

Low



9

Mission Bay Shoreline, at North Cove Beach at Vacation Isle

Coastal & Bay Shoreline

4906.600000,4906.800000  /  0000000
  • Indicator Bacteria
    • A Source Unknown

0.32 Miles

2014

5A

Low



9

Mission Bay Shoreline, at Visitors Center

Coastal & Bay Shoreline

90640000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.38 Miles

2014

5A

Low



9

Mission Bay at Quiviran Basin

Bay & Harbor

4906.700000,4906.800000  /  18070304
  • Copper
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

104 Acres

2010

5A

Low



9

Moosa Canyon Creek

River & Stream

90313000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

18 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform.
  • Nitrogen
    • A Source Unknown

18 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

18 Miles

2010

5A

Low



9

Moosa Canyon, South Fork

River & Stream

90313000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

4.7 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform


9

Morena Reservoir

Lake & Reservoir

4911.300000,4911.500000  /  18070305
  • Ammonia
    • A Source Unknown

328 Acres

2014

5A

Low

  • Color
    • A Source Unknown

328 Acres

2006

5A

Low

  • Manganese
    • A Source Unknown

328 Acres

2006

5A

Low

  • Nitrogen
    • A Source Unknown

328 Acres

2010

5A

Low

  • Phosphorus
    • A Source Unknown

328 Acres

2010

5A

Low

  • pH
    • A Source Unknown
    • Unknown Nonpoint Source

328 Acres

2006

5A

Low



9

Moro Canyon Creek

River & Stream

90111000  /  18070301
  • Nitrogen
    • A Source Unknown

3.5 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

3.5 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

3.5 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

3.5 Miles

2010

5A

Low

    This decision can be retired since the toxicity can be associated to the other impairments from 2010.


9

Murphy Canyon

River & Stream

90711000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

8.3 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

8.3 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

8.3 Miles

2020

5A

Low



9

Murrieta Creek

River & Stream

90252000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

12 Miles

2020

5A

Low

  • Chlorpyrifos
    • A Source Unknown

12 Miles

2010

5A

Low

  • Copper
    • A Source Unknown

12 Miles

1800

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

12 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

12 Miles

2006

5A

Low

  • Manganese
    • A Source Unknown

12 Miles

2006

5A

Low

  • Mercury
    • A Source Unknown

12 Miles

2028

5A

Low

  • Nitrogen
    • A Source Unknown

12 Miles

2006

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

12 Miles

2002

5A

Low

  • Pyrethroids
    • A Source Unknown

12 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

12 Miles

2028

5A

Low



9

Oceanside Harbor

Bay & Harbor

4901.530000, 4902.110000, 4902.110000, 4902.110000, 4903.110000, 4903.110000, 4904.100000, 4904.100000, 4904.210000, 4904.210000  /  18070302
  • Copper
    • A Source Unknown
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

7 Acres

2010

5A

Low

  • Toxicity
    • A Source Unknown

7 Acres

2010

5A

Low



9

Oso Creek (at Mission Viejo Golf Course)

River & Stream

90120000  /  18070301
  • Chloride
    • A Source Unknown

1.1 Miles

2006

5A

Low

  • Sulfates
    • A Source Unknown

1.1 Miles

2006

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

1.1 Miles

2006

5A

Low



9

Oso Creek (lower)

River & Stream

90120000  /  18070301
  • Nitrogen
    • A Source Unknown

12 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

12 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

12 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

Low

    See decision numbers 43302 , 43534 , 44429 for potential sources of water toxicity.


9

Otay Reservoir, Lower

Lake & Reservoir

91031000  /  18070304
  • Ammonia
    • A Source Unknown

1092 Acres

2010

5A

Low

  • Color
    • A Source Unknown

1092 Acres

2006

5A

Low

  • Iron
    • A Source Unknown
    • Natural Sources

1092 Acres

2006

5A

Low

  • Manganese
    • A Source Unknown

1092 Acres

2006

5A

Low

  • Mercury
    • A Source Unknown

1092 Acres

2028

5A

Low

  • Nitrogen
    • A Source Unknown

1092 Acres

2010

5A

Low

  • Phosphorus
    • A Source Unknown

1092 Acres

2010

5A

Low

  • pH
    • A Source Unknown

1092 Acres

2014

5A

Low

    The LOE should show 10 of 24 samples exceeding the upper PH limit.


9

Otay River

River & Stream

91020000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

14 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

14 Miles

2020

5A

Low

  • Copper
    • A Source Unknown

14 Miles

2020

5A

Low

  • Cyfluthrin
    • A Source Unknown

14 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

14 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

14 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

14 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

14 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

14 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

14 Miles

2020

5A

Low

  • Zinc
    • A Source Unknown

14 Miles

2020

5A

Low



9

Pacific Ocean Shoreline, Aliso HSA, at Aliso Creek mouth

Coastal & Bay Shoreline

4901.130000,4901.140000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.15 Miles

2014

5B


2011
  • Toxicity
    • A Source Unknown

0.15 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, Coronado HA, at Avenida del Sol

Coastal & Bay Shoreline

4908.210000,4910.100000,4912.000000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.39 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, Coronado HA, at Silver Strand (north end, Oceanside)

Coastal & Bay Shoreline

91010000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

2 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, Dana Point HSA, at Niguel Marine Life Refuge

Coastal & Bay Shoreline

4901.140000,4901.270000,4901.310000  /  18070301
  • Toxicity
    • A Source Unknown

0.59 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, Imperial Beach Pier

Coastal & Bay Shoreline

91010000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.04 Miles

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.04 Miles

2006

5A

Low

  • Trash
    • A Source Unknown

0.04 Miles

2014

5C


2029


9

Pacific Ocean Shoreline, Loma Alta HSA, at Loma Alta Creek mouth

Coastal & Bay Shoreline

90410000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

0.1 Miles

1998

5A

Low

  • Trash
    • A Source Unknown

0.1 Miles

2014

5C


2029


9

Pacific Ocean Shoreline, Otay Valley HA, at Carnation Ave and Camp Surf Jetty

Coastal & Bay Shoreline

91010000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.07 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, Otay Valley HA, north of Palm Avenue Jetty

Coastal & Bay Shoreline

4910.100000,4911.110000,4912.000000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.12 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, Point Loma HA, at Bermuda Ave

Coastal & Bay Shoreline

4906.300000,4906.600000,4906.700000,4906.800000,4907.110000,4908.100000,4908.210000,4910.100000,4912.000000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.13 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, Rancho Santa Fe HSA, at Fletcher Cove Beach

Coastal & Bay Shoreline

4904.510000,4904.610000,4905.110000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.49 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, San Elijo HSA, at Cardiff State Beach at Chart House parking

Coastal & Bay Shoreline

4904.510000,4904.610000,4905.110000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

0.2 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, San Mateo Canyon HA, at San Mateo Creek outlet

Coastal & Bay Shoreline

4901.320000,4901.400000,4901.510000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.19 Miles

2014

5A

Low



9

Pacific Ocean Shoreline, Tijuana HU, at 3/4 mile North of Tijuana River

Coastal & Bay Shoreline

91111000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.76 Miles

2014

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.


9

Pacific Ocean Shoreline, Tijuana HU, at Border

Coastal & Bay Shoreline

4910.100000,4911.110000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.29 Miles

2014

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.


9

Pacific Ocean Shoreline, Tijuana HU, at Cortez Avenue

Coastal & Bay Shoreline

4910.100000,4911.110000,4912.000000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.36 Miles

2014

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.


9

Pacific Ocean Shoreline, Tijuana HU, at Monument Road

Coastal & Bay Shoreline

4910.100000,4911.110000  /  18070305
  • Indicator Bacteria
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

0.9 Miles

2014

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.


9

Pacific Ocean Shoreline, Tijuana HU, at Tijuana River mouth

Coastal & Bay Shoreline

4910.100000,4911.110000  /  18070305
  • Indicator Bacteria
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

0.34 Miles

2014

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.


9

Pacific Ocean Shoreline, Tijuana HU, at end of Seacoast Drive

Coastal & Bay Shoreline

4910.100000,4911.110000,4912.000000  /  18070305
  • Indicator Bacteria
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

0.23 Miles

2014

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.


9

Paleta Creek

River & Stream

90831000  /  18070304
  • Copper
    • A Source Unknown

4.1 Miles

2010

5A

Low

  • Lead
    • A Source Unknown

4.1 Miles

2010

5A

Low



9

Paradise Creek, HSA 908.320

River & Stream

90912000  /  18070304
  • Phosphorus
    • A Source Unknown

6.1 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

6.1 Miles

2010

5A

Low



9

Pine Valley Creek (Lower)

River & Stream

91130000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

90 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and total coliform for REC-1.


9

Poggi Canyon Creek

River & Stream

4910.200000  /  18070304
  • Nitrogen
    • A Source Unknown

7.9 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

7.9 Miles

2010

5A

Low



9

Poway Creek

River & Stream

90620000  /  18070304
  • Nitrogen
    • A Source Unknown

7.2 Miles

2014

5A

Low

  • Selenium
    • A Source Unknown

7.2 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

7.2 Miles

2010

5A

Low



9

Prima Deshecha Creek

River & Stream

90130000  /  18070301
  • Cadmium
    • A Source Unknown

1.2 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

1.2 Miles

2014

5A

Low

  • Malathion
    • A Source Unknown

1.2 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

1.2 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

1.2 Miles

2002

5A

Low

  • Selenium
    • A Source Unknown

1.2 Miles

2014

5A

Low

    The exceedances were primarily based on samples collected during or after storm events in the winters seasons of 2008 and 2009.
  • Turbidity
    • A Source Unknown

1.2 Miles

2002

5A

Low



9

Rainbow Creek

River & Stream

90222000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

8 Miles

2010

5A

Low

  • Fenpyroximate
    • A Source Unknown

8 Miles

2020

5A

Low

  • Imidacloprid
    • A Source Unknown

8 Miles

2020

5A

Low

  • Iron
    • A Source Unknown

8 Miles

2006

5A

Low

  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

8 Miles

2020

5B


2006
  • Nitrogen
    • Agricultural Return Flows
    • Nonpoint Source
    • Nurseries
    • Onsite Wastewater Systems (Septic Tanks)
    • Other Urban Runoff
    • Point Source

8 Miles

2002

5B


2006
  • Phosphorus
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

8 Miles

2002

5B


2006
  • Sulfates
    • A Source Unknown

8 Miles

2006

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

8 Miles

2006

5A

Low

  • Turbidity
    • A Source Unknown

8 Miles

2028

5A

Low



9

Rainbow Glen

River & Stream

4902.230000  / 
  • Iron
    • A Source Unknown

0.97 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

0.97 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

0.97 Miles

2020

5A

Low

  • Sulfates
    • A Source Unknown

0.97 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

0.97 Miles

2020

5A

Low

  • Turbidity
    • A Source Unknown

0.97 Miles

2020

5A

Low



9

Redhawk Channel

River & Stream

4902.510000  /  18070302
  • Chlorpyrifos
    • A Source Unknown

0.46 Miles

2010

5A

Low

  • Copper
    • A Source Unknown

0.46 Miles

2010

5A

Low

  • Diazinon
    • A Source Unknown

0.46 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

0.46 Miles

2014

5A

Low

    The indicator bacteria listed include E. Coli., and fecal coliform.
  • Iron
    • A Source Unknown
    • Natural Sources

0.46 Miles

2010

5A

Low

  • Manganese
    • A Source Unknown

0.46 Miles

2010

5A

Low

  • Nitrogen
    • A Source Unknown

0.46 Miles

2010

5A

Low

  • Phosphorus
    • A Source Unknown

0.46 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

0.46 Miles

2010

5A

Low



9

Reidy Canyon Creek

River & Stream

90462000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

4.1 Miles

2006

5A

Low



9

Rose Creek

River & Stream

90640000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

13 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

13 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

13 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

13 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

13 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

13 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

13 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown
    • Natural Sources

13 Miles

2010

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

13 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

13 Miles

2010

5A

Low

    Toxicity is linked to Selenium exceedances.


9

Salt Creek (Orange County)

River & Stream

90114000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

4.5 Miles

2014

5A

Low

  • Imidacloprid
    • A Source Unknown

4.5 Miles

2020

5A

Low

  • Malathion
    • Surface Runoff

4.5 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

4.5 Miles

2014

5A

Low



9

San Diego Bay

Bay & Harbor

4908.100000, 4908.100000, 4908.100000, 4908.210000, 4908.210000, 4908.220000, 4908.310000, 4908.320000, 4909.110000, 4909.120000,(Total Count: 17)  /  18070304
  • Mercury
    • A Source Unknown
    • Atmospheric Deposition
    • Contaminated Sediments
    • Historic Land Management Activities
    • Other Urban Runoff

1418 Acres

2014

5A

Low

  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

1418 Acres

2014

5A

Low

  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown
    • Contaminated Sediments
    • Dredging
    • Historic Land Management Activities
    • Illegal dumping
    • Spills
    • Urban Runoff/Storm Sewers

1418 Acres

2006





9

San Diego Bay Shoreline, 32nd St San Diego Naval Station

Bay & Harbor

4908.220000, 4908.310000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

14 Acres

1998

5A

Low

  • Sediment Toxicity
    • A Source Unknown

14 Acres

1998

5A

Low



9

San Diego Bay Shoreline, Chula Vista Marina

Coastal & Bay Shoreline

90912000  /  18070304
  • Copper
    • A Source Unknown

0.58 Miles

2006

5A

Low



9

San Diego Bay Shoreline, Downtown Anchorage

Bay & Harbor

4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

0.97 Acres

1998



  • Sediment Toxicity
    • A Source Unknown

0.97 Acres

1998

5A

Low

  • Toxicity
    • A Source Unknown

0.97 Acres

2024





9

San Diego Bay Shoreline, G Street Pier

Coastal & Bay Shoreline

90821000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.42 Miles

2002

5A

Low

    The indicator bacteria listed include total coliform for SHELL.


9

San Diego Bay Shoreline, North of 24th Street Marine Terminal

Bay & Harbor

4908.320000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

1.2 Acres

2002

5A

Low

  • Sediment Toxicity
    • A Source Unknown

1.2 Acres

2002

5A

Low



9

San Diego Bay Shoreline, Seventh Street Channel

Bay & Harbor

4908.310000, 4908.320000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

1.2 Acres

2002

5A

Low

  • Sediment Toxicity
    • A Source Unknown

1.2 Acres

2002

5A

Low



9

San Diego Bay Shoreline, Tidelands Park

Coastal & Bay Shoreline

91010000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.4 Miles

1800

5A

Low



9

San Diego Bay Shoreline, Vicinity of B St and Broadway Piers

Bay & Harbor

4908.210000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

1.3 Acres

2002

5A

Low

  • Indicator Bacteria
    • A Source Unknown

1.3 Acres

2010

5A

Low

  • Sediment Toxicity
    • A Source Unknown

1.3 Acres

2002

5A

Low



9

San Diego Bay Shoreline, at Americas Cup Harbor

Estuary

4908.100000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

12 Acres

1992

5A

Low



9

San Diego Bay Shoreline, at Bayside Park (J Street)

Bay & Harbor

4909.120000, 4912.000000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

6.6 Acres

2014

5A

Low



9

San Diego Bay Shoreline, at Coronado Cays

Bay & Harbor

4910.100000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

6.2 Acres

1992

5A

Low



9

San Diego Bay Shoreline, at Glorietta Bay

Bay & Harbor

4910.100000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

6.9 Acres

1992

5A

Low



9

San Diego Bay Shoreline, at Harbor Island (East Basin)

Bay & Harbor

4908.210000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

9.6 Acres

1992





9

San Diego Bay Shoreline, at Harbor Island (West Basin)

Bay & Harbor

4908.100000, 4908.210000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

17 Acres

1992

5A

Low



9

San Diego Bay Shoreline, at Marriott Marina

Bay & Harbor

4908.210000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

3.1 Acres

1992

5A

Low



9

San Diego Bay Shoreline, at Silver Strand Beach (bayside)

Bay & Harbor

4910.100000,4912.000000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

9.5 Acres

2014

5A

Low



9

San Diego Bay Shoreline, near Chollas Creek

Bay & Harbor

4908.220000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

1.9 Acres

2002



  • Sediment Toxicity
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

1.9 Acres

2002

5A

Low

  • Toxicity
    • A Source Unknown

1.9 Acres

2024





9

San Diego Bay Shoreline, near Coronado Bridge

Bay & Harbor

4908.220000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

4.9 Acres

2002

5A

Low

  • Sediment Toxicity
    • A Source Unknown

4.9 Acres

2002

5A

Low

    Includes Crosby Street/Cesar Chavez Park area, that will receive additional monitoring.


9

San Diego Bay Shoreline, near Switzer Creek

Bay & Harbor

4908.210000, 4908.220000, 4912.000000  /  18070304
  • Chlordane
    • A Source Unknown

0.73 Acres

2002

5A

Low

  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

0.73 Acres

2002

5A

Low



9

San Diego Bay Shoreline, near sub base

Bay & Harbor

4908.100000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

2.1 Acres

2002

5A

Low

    There is not an expected TMDL completion date because the TMDL is for the waterbody and pollutant and the TMDL can not be completed for benthic community effects alone.
  • Toxicity
    • A Source Unknown

2.1 Acres

2002

5A

Low



9

San Diego River (Lower)

River & Stream

4906.700000,4906.800000,4907.110000,4907.120000,4907.150000,4907.310000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

29 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

29 Miles

2014

5A

Low

  • Chlordane
    • A Source Unknown

29 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

29 Miles

2020

5A

Low

  • Color
    • A Source Unknown

29 Miles

2020

5A

Low

  • Cyfluthrin
    • A Source Unknown

29 Miles

2020

5A

Low

  • Cypermethrin
    • A Source Unknown

29 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

29 Miles

2014

5B


2011
  • Nitrogen
    • A Source Unknown

29 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

29 Miles

2014

5A

Low

    Impairment transcends adjacent Calwater watershed 90712.
  • Permethrin
    • A Source Unknown

29 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

29 Miles

2002

5A

Low

    Impairment transcends adjacent Calwater watershed 90712.
  • Pyrethroids
    • A Source Unknown

29 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

29 Miles

2002

5A

Low

    Impairment transcends adjacent Calwater watershed 90712.
  • Toxicity
    • A Source Unknown

29 Miles

2010

5A

Low

    Up to this time of assessment, sediment toxicity has been observed mostly in samples from the San Diego River Estuary. In the next cycle of assessment, San Diego River Estuary will be separated from the lower portion (i.e., freshwater) portion of San Diego River (lower).
  • Turbidity
    • A Source Unknown

29 Miles

2020

5A

Low



9

San Dieguito River

River & Stream

90511000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Agriculture
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

12 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

12 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

12 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

12 Miles

2010

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

12 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

12 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

12 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

Low



9

San Dieguito River, unnamed tributary below Hodges Dam

River & Stream

90511000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

3.6 Miles

2014

5A

Low

    The indicator bacteria listed is enterococcus.


9

San Elijo Creek (San Diego County)

River & Stream

90461000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

3.8 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus, fecal coliform, and total coliform.


9

San Elijo Creek (San Diego County), unnamed tributary at San Elijo Avenue

River & Stream

90461000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

1.6 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform.


9

San Elijo Lagoon

Coastal & Bay Shoreline

4904.510000,4904.610000,4905.110000  /  18070303
  • Eutrophic
    • A Source Unknown

185 Miles

1996

5A

Low

    Estimated size of impairment is 330 acres.
  • Indicator Bacteria
    • A Source Unknown

185 Miles

1996

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

185 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

185 Miles

2020

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

185 Miles

1996

5A

Low

    Estimated size of impairment is 150 acres.
  • Toxicity
    • A Source Unknown

185 Miles

2014

5A

Low

  • Turbidity
    • A Source Unknown

185 Miles

2020

5A

Low



9

San Juan Creek

River & Stream

4901.240000,4901.250000,4901.260000,4901.270000,4901.280000  /  18070301
  • Benthic Community Effects
    • A Source Unknown
    • Agriculture
    • Contaminated Sediments
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Removal of Riparian Vegetation
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

23 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

23 Miles

2014

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

23 Miles

2006

5A

Low

  • Indicator Bacteria
    • A Source Unknown

23 Miles

1992

5B


2011
  • Nitrogen
    • A Source Unknown

23 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

23 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

23 Miles

1800

5A

Low

  • Pyrethroids
    • A Source Unknown

23 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown

23 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

23 Miles

2010

5A

Low



9

San Juan Creek (mouth)

Estuary

4901.140000, 4901.270000, 4901.270000, 4901.310000  /  18070301
  • Cadmium
    • A Source Unknown

0.84 Acres

2014

5A

Low

  • Copper
    • A Source Unknown

0.84 Acres

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

0.84 Acres

1990

5B


2011
  • Nickel
    • A Source Unknown

0.84 Acres

2014

5A

Low

  • Nitrogen, ammonia (Total Ammonia)
    • A Source Unknown

0.84 Acres

2014

5A

Low



9

San Luis Rey River, Lower (west of Interstate 15)

River & Stream

90311000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

19 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

19 Miles

2014

5A

Low

  • Chloride
    • A Source Unknown

19 Miles

2002

5A

Low

    Impairment located at lower 13 miles.
  • Nitrogen
    • A Source Unknown

19 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

19 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

19 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

19 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

19 Miles

2002

5A

Low

  • Toxicity
    • A Source Unknown

19 Miles

2010

5A

Low



9

San Luis Rey River, Upper (east of Interstate 15)

River & Stream

90312000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

32 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus for the impairment of REC-1.
  • Nitrogen
    • A Source Unknown

32 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

32 Miles

2010

5A

Low

  • Total Nitrogen as N
    • A Source Unknown

32 Miles

2010

5A

Low



9

San Marcos Creek, Lower (below San Marcos Lake)

River & Stream

4904.510000,4904.520000  / 
  • Nitrogen
    • A Source Unknown

5.3 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

5.3 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown

5.3 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

5.3 Miles

2020

5A

Low



9

San Marcos Creek, Upper (above San Marcos Lake)

River & Stream

4904.520000  / 
  • Benthic Community Effects
    • A Source Unknown

4.3 Miles

2020

5A

Low

  • Bifenthrin
    • A Source Unknown

4.3 Miles

2020

5A

Low

  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

4.3 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

4.3 Miles

2020

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform.
  • Nitrogen
    • A Source Unknown

4.3 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

4.3 Miles

2020

5A

Low

  • Pyrethroids
    • A Source Unknown

4.3 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

4.3 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

4.3 Miles

2020

5A

Low



9

San Mateo Creek (San Diego County)

River & Stream

90140000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

14 Miles

2014

5A

Low

    The indicator bacteria listed include E. coli., enterococcus, and total coliform for impairment of REC-1.
  • Invasive Species
    • A Source Unknown

14 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2014

5A

Low



9

San Vicente Creek (San Diego County)

River & Stream

4907.220000,4907.230000  /  18070304
  • Ammonia as Nitrogen
    • A Source Unknown

16 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

16 Miles

2014

5A

Low

    The indicator bacteria listed is enterococcus.
  • Phosphorus
    • A Source Unknown

16 Miles

2010

5A

Low

  • Total Nitrogen as N
    • A Source Unknown

16 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

16 Miles

2010

5A

Low



9

San Vicente Reservoir

Lake & Reservoir

4907.210000  /  18070304
  • Chloride
    • A Source Unknown
    • Unknown Nonpoint Source
    • Water Diversions

1088 Acres

2006

5A

Low

  • Color
    • A Source Unknown

1088 Acres

2006

5A

Low

  • Nitrogen
    • A Source Unknown

1088 Acres

2014

5A

Low

  • Sulfates
    • A Source Unknown

1088 Acres

2006

5A

Low

  • pH
    • A Source Unknown

1088 Acres

2014

5A

Low



9

Sandia Creek

River & Stream

4902.220000  /  18070302
  • Ammonia (Unionized)
    • A Source Unknown

6.8 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

6.8 Miles

2006

5A

Low

  • Manganese
    • A Source Unknown

6.8 Miles

2006

5A

Low

  • Nitrogen
    • A Source Unknown

6.8 Miles

2006

5A

Low

  • Selenium
    • A Source Unknown

6.8 Miles

2028

5A

Low

  • Silver
    • A Source Unknown

6.8 Miles

2028

5A

Low

  • Sulfates
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

6.8 Miles

2006

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

6.8 Miles

2002

5A

Low



9

Santa Gertrudis Creek

River & Stream

90242000  /  18070302
  • Chlorpyrifos
    • A Source Unknown

13 Miles

2010

5A

Low

  • Copper
    • A Source Unknown

13 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

13 Miles

2010

5A

Low

  • Manganese
    • A Source Unknown

13 Miles

2010

5A

Low

  • Nitrogen
    • A Source Unknown

13 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

13 Miles

2010

5A

Low



9

Santa Margarita Lagoon

Estuary

4901.530000,4902.110000,4903.110000  /  18070302
  • Eutrophic
    • Agriculture-storm runoff

489 Acres

1986





9

Santa Margarita River (Lower)

River & Stream

4902.110000,4902.120000,4902.130000,4902.210000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

12 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

12 Miles

2014

5A

Low

    Santa Margarita River Eutrophication and Nutrient Advanced Restoration Plan is in progress.
  • Phosphorus
    • A Source Unknown

12 Miles

2010

5A

Low

    Santa Margarita River Eutrophication and Nutrient Advanced Restoration Plan is in progress.
  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

Low



9

Santa Margarita River (Upper)

River & Stream

90222000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

18 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

18 Miles

2014

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

18 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

18 Miles

2014

5A

Low

  • Manganese
    • A Source Unknown

18 Miles

2010

5A

Low

  • Nitrogen
    • A Source Unknown

18 Miles

2014

5A

Low

    Santa Margarita River Eutrophication and Nutrient Advanced Restoration Plan is in progress.
  • Orthophosphate
    • A Source Unknown
    • Agriculture-storm runoff

18 Miles

2010

5R

Low

  • Phosphorus
    • A Source Unknown

18 Miles

2002

5A

Low

    Santa Margarita River Eutrophication and Nutrient Advanced Restoration Plan is in progress.
  • Pyrethroids
    • A Source Unknown

18 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

18 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

18 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

18 Miles

2014

5A

Low



9

Santa Ysabel Creek (below Sutherland Reservoir)

River & Stream

4905.210000,4905.310000,4905.320000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Manganese
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

4.1 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

4.1 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

4.1 Miles

2014

5A

Low



9

Segunda Deshecha Creek

River & Stream

90130000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

3.4 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5A

Low

    The indicator bacteria listed included enterococci and fecal coliform for REC-1.
  • Malathion
    • A Source Unknown

3.4 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

3.4 Miles

2014

5A

Low

    The Listing Decision is based on data collected about 10 years old. In future cycles of evaluation, more recent data will be solicited and combined with the existing data to re-evaluate the water body condition.
  • Phosphorus
    • A Source Unknown

3.4 Miles

2002

5A

Low

  • Selenium
    • A Source Unknown

3.4 Miles

2014

5A

Low

  • Toxicity
    • A Source Unknown

3.4 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

3.4 Miles

2002

5A

Low



9

Shepherd Canyon East

River & Stream

4907.110000  / 
  • Nitrogen
    • A Source Unknown

2.5 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

2.5 Miles

2020

5A

Low



9

Skinner Lake

Lake & Reservoir

4902.410000  / 
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

996 Acres

2020

5A

Low



9

Soledad Canyon

River & Stream

90610000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

1.9 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

1.9 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

1.9 Miles

2020

5A

Low

  • Sediment Toxicity
    • A Source Unknown

1.9 Miles

2002

5A

Low

  • Selenium
    • A Source Unknown
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

Low



9

Steele Canyon

River & Stream

4909.210000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

5.8 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform.


9

Sutherland Reservoir

Lake & Reservoir

90553000  /  18070304
  • Color
    • A Source Unknown

556 Acres

2002

5A

Low

  • Iron
    • A Source Unknown

556 Acres

2028

5A

Low

  • Manganese
    • A Source Unknown

556 Acres

2006

5A

Low

  • Mercury
    • A Source Unknown

556 Acres

2028

5A

Low

  • Nitrogen
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source

556 Acres

2014

5A

Low

  • Phosphorus
    • A Source Unknown

556 Acres

2010

5A

Low

  • pH
    • A Source Unknown

556 Acres

2006

5A

Low



9

Sweetwater Reservoir

Lake & Reservoir

4909.120000,4909.210000  /  18070304
  • Mercury
    • A Source Unknown

1310 Acres

2028

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

1310 Acres

2006

5A

Low



9

Sweetwater River, Lower (below Sweetwater Reservoir)

River & Stream

4909.120000,4909.120000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

8.5 Miles

2014

5A

Low

  • Bifenthrin
    • A Source Unknown

8.5 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

8.5 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

8.5 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

8.5 Miles

2014

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

8.5 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

8.5 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

8.5 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

8.5 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

8.5 Miles

2010

5A

Low



9

Sweetwater River, Middle (between Sweetwater and Loveland Reservoirs)

River & Stream

4909.210000,4909.230000  / 
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Resource Extraction
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

17 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

17 Miles

2020

5A

Low

    The indicator bacteria listed include entercoccus for the impairment of REC-1.
  • Nitrogen
    • A Source Unknown

17 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

17 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown

17 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

17 Miles

2020

5A

Low

  • Toxicity
    • A Source Unknown

17 Miles

2020

5A

Low

  • Turbidity
    • A Source Unknown

17 Miles

2020

5A

Low



9

Sweetwater River, North Fork, unnamed tributary at Tavern Road

River & Stream

90926000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

1.7 Miles

2014

5A

Low

    The indicator bacteria listed include enterococcus and fecal coliform for impairment of REC-1.
  • Manganese
    • A Source Unknown

1.7 Miles

2014

5A

Low



9

Sweetwater River, Upper (above Loveland Reservoir)

River & Stream

4909.310000,4909.340000,4909.350000  / 
  • Toxicity
    • A Source Unknown

27 Miles

2020

5A

Low



9

Switzer Creek

River & Stream

4908.220000,4908.220000  /  18070304
  • Copper
    • A Source Unknown

2.6 Miles

2010

5A

Low

  • Lead
    • A Source Unknown

2.6 Miles

2010

5A

Low

  • Zinc
    • A Source Unknown

2.6 Miles

2010

5A

Low



9

Sycamore Canyon

River & Stream

4907.120000  /  18070304
  • Oxygen, Dissolved
    • A Source Unknown

8.4 Miles

2014

5A

Low



9

Tecate Creek

River & Stream

91123000  /  18070305
  • Nitrogen
    • A Source Unknown

1.2 Miles

2010

5A

Low

    The listing decision is based on data collected about 10 years old. In future cycles of evaluation, more recent data will be solicited and combined with the existing data to re-evaluate the water body condition as appropriate.
  • Phosphorus
    • A Source Unknown

1.2 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

1.2 Miles

2010

5A

Low



9

Tecolote Creek

River & Stream

90650000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

27 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

27 Miles

2014

5A

Low

  • Cyfluthrin
    • A Source Unknown

27 Miles

2020

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

27 Miles

2020

5A

Low

  • Cypermethrin
    • A Source Unknown

27 Miles

2014

5A

Low

  • Diazinon
    • A Source Unknown

27 Miles

2014

5A

Low

  • Indicator Bacteria
    • A Source Unknown

27 Miles

1996

5B


2011
  • Nitrogen
    • A Source Unknown

27 Miles

2010

5A

Low

  • Permethrin
    • A Source Unknown

27 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

27 Miles

2006

5A

Low

  • Pyrethroids
    • A Source Unknown

27 Miles

2020

5A

Low

  • Selenium
    • A Source Unknown
    • Natural Sources

27 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

27 Miles

1996

5A

Low

  • Turbidity
    • A Source Unknown

27 Miles

2006

5A

Low

  • pH
    • A Source Unknown

27 Miles

2028

5A

Low



9

Telegraph Canyon Creek

River & Stream

90911000  /  18070304
  • Nitrogen
    • A Source Unknown

10 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

10 Miles

2010

5A

Low



9

Temecula Creek

River & Stream

90251000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

32 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

32 Miles

2020

5A

Low

  • Chlorpyrifos
    • A Source Unknown

32 Miles

2010

5A

Low

  • Copper
    • A Source Unknown
    • Urban Runoff/Storm Sewers

32 Miles

2010

5A

Low

  • Cyfluthrin
    • A Source Unknown

32 Miles

2020

5A

Low

  • Cyhalothrin, Lambda
    • A Source Unknown

32 Miles

2020

5A

Low

  • Indicator Bacteria
    • A Source Unknown

32 Miles

2014

5A

Low

  • Iron
    • A Source Unknown

32 Miles

2020

5A

Low

  • Manganese
    • A Source Unknown

32 Miles

2020

5A

Low

  • Mercury
    • A Source Unknown

32 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

32 Miles

2006

5A

Low

  • Permethrin
    • A Source Unknown

32 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

32 Miles

2006

5A

Low

  • Pyrethroids
    • A Source Unknown

32 Miles

2020

5A

Low

  • Sulfates
    • A Source Unknown

32 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

32 Miles

2006

5A

Low

  • Toxicity
    • A Source Unknown

32 Miles

2010

5A

Low

  • Turbidity
    • A Source Unknown

32 Miles

2028

5A

Low



9

Tijeras Canyon

River & Stream

90120000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

4.1 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

4.1 Miles

2020

5A

Low



9

Tijuana River

River & Stream

4911.110000,4911.120000  /  18070305
  • Ammonia
    • A Source Unknown

7.3 Miles

2020

5A

Low

  • Ammonia (Unionized)
    • Wastewater

7.3 Miles

2020

5A

Low

  • Ammonia as Nitrogen
    • A Source Unknown

7.3 Miles

2010

5A

Low

  • Benthic Community Effects
    • A Source Unknown

7.3 Miles

2010

5A

Low

  • Bifenthrin
    • A Source Unknown

7.3 Miles

2014

5A

Low

  • Cadmium
    • A Source Unknown

7.3 Miles

2014

5A

Low

  • Chlorpyrifos
    • A Source Unknown

7.3 Miles

2014

5A

Low

  • Color
    • A Source Unknown

7.3 Miles

2020

5A

Low

  • Cypermethrin
    • A Source Unknown

7.3 Miles

2014

5A

Low

  • Diazinon
    • A Source Unknown

7.3 Miles

2014

5A

Low

  • Dichlorvos
    • A Source Unknown

7.3 Miles

2020

5A

Low

  • Eutrophic
    • A Source Unknown

7.3 Miles

1996

5A

Low

  • Indicator Bacteria
    • A Source Unknown

7.3 Miles

1992

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.
  • Low Dissolved Oxygen
    • A Source Unknown

7.3 Miles

1996

5A

Low

  • Malathion
    • A Source Unknown

7.3 Miles

2014

5A

Low

  • Nitrogen
    • A Source Unknown

7.3 Miles

2020

5A

Low

  • Oxygen, Dissolved
    • A Source Unknown

7.3 Miles

2028

5A

Low

  • Permethrin
    • A Source Unknown

7.3 Miles

2014

5A

Low

  • Pesticides
    • A Source Unknown

7.3 Miles

1996

5A

Low

  • Phosphorus
    • A Source Unknown

7.3 Miles

2010

5A

Low

  • Pyrethroids
    • A Source Unknown

7.3 Miles

2020

5A

Low

  • Sedimentation/Siltation
    • A Source Unknown

7.3 Miles

2010

5A

Low

  • Selenium
    • A Source Unknown

7.3 Miles

2010

5A

Low

  • Solids
    • A Source Unknown

7.3 Miles

1996

5A

Low

  • Surfactants (MBAS)
    • A Source Unknown

7.3 Miles

2010

5A

Low

  • Synthetic Organics
    • A Source Unknown

7.3 Miles

1996

5A

Low

  • Total Nitrogen as N
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

7.3 Miles

2010

5A

Low

  • Toxicity
    • A Source Unknown

7.3 Miles

2010

5A

Low

  • Trash
    • A Source Unknown

7.3 Miles

1998

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.
  • Turbidity
    • A Source Unknown

7.3 Miles

2020

5A

Low



9

Tijuana River Estuary

Estuary

4910.100000,4911.110000,4912.000000  /  18070305
  • Eutrophic
    • A Source Unknown

1863 Acres

1996

5A

Low

    Estimated size of impairment is 1 acre.
  • Indicator Bacteria
    • A Source Unknown

1863 Acres

1988

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.
  • Lead
    • A Source Unknown

1863 Acres

1992

5A

Low

    Estimated size of impairment is 1 acre.
  • Low Dissolved Oxygen
    • A Source Unknown

1863 Acres

1988

5A

Low

  • Nickel
    • A Source Unknown

1863 Acres

1992

5A

Low

    Estimated size of impairment is 1 acre.
  • Pesticides
    • A Source Unknown

1863 Acres

1992

5A

Low

    Estimated size of impairment is 1 acre.
  • Thallium
    • A Source Unknown

1863 Acres

1992

5A

Low

    Estimated size of impairment is 1 acre.
  • Toxicity
    • A Source Unknown

1863 Acres

2014

5A

Low

  • Trash
    • A Source Unknown

1863 Acres

1996

5A

Low

    Lower Tijuana River Indicator Bacteria and Trash Advance Restoration Plan is in progress.
  • Turbidity
    • A Source Unknown

1863 Acres

2006

5A

Low



9

Tijuana River, Upper (Cottonwood Creek confluence to 1st border crossing)

River & Stream

4911.210000,4911.230000  /  18070305
  • Nitrogen
    • A Source Unknown

3.2 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

3.2 Miles

2020

5A

Low



9

Unnamed Tributary to French Valley

River & Stream

4902.330000  / 
  • Nitrogen
    • A Source Unknown

3.9 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

3.9 Miles

2020

5A

Low



9

Via Milpas

River & Stream

4902.220000  / 
  • Iron
    • A Source Unknown

1 Miles

2020

5A

Low

  • Nitrogen
    • A Source Unknown

1 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

1 Miles

2020

5A

Low

  • Sulfates
    • A Source Unknown

1 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

1 Miles

2020

5A

Low

  • Turbidity
    • A Source Unknown

1 Miles

2020

5A

Low



9

Warm Springs Creek (Riverside County)

River & Stream

90233000  /  18070302
  • Chlorpyrifos
    • A Source Unknown

14 Miles

2010

5A

Low

  • Indicator Bacteria
    • A Source Unknown

14 Miles

2014

5A

Low

    The indicator bacteria listed include E.Coli. and fecal coliform
  • Iron
    • A Source Unknown

14 Miles

2010

5A

Low

  • Manganese
    • A Source Unknown

14 Miles

2010

5A

Low

  • Nitrogen
    • A Source Unknown

14 Miles

2014

5A

Low

  • Phosphorus
    • A Source Unknown

14 Miles

2010

5A

Low



9

Willow Glen

River & Stream

4902.220000  / 
  • Nitrogen
    • A Source Unknown

0.93 Miles

2020

5A

Low

  • Phosphorus
    • A Source Unknown

0.93 Miles

2020

5A

Low

  • Sulfates
    • A Source Unknown

0.93 Miles

2020

5A

Low

  • Total Dissolved Solids
    • A Source Unknown

0.93 Miles

2020

5A

Low



9

Wood Canyon (Orange County)

River & Stream

90113000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

3.2 Miles

2010

5A

Low

  • Diazinon
    • A Source Unknown

3.2 Miles

2014

5A

Low

  • Selenium
    • A Source Unknown

3.2 Miles

2014

5A

Low