Statewide CATEGORY 5 Draft 2018 Integrated Report (CWA Section 303(d) List / 305(b) Report)
2018 CALIFORNIA 303(d) LIST OF WATER QUALITY LIMITED SEGMENTS*
 
 REGION  WATER BODY NAME WATER TYPE WATERSHED*
CALWATER / USGS HUC
  • POLLUTANT
    • POTENTIAL SOURCES
  • Relevant Notes
ESTIMATED AREA ASSESSED FIRST YEAR LISTED TMDL REQUIREMENT STATUS**  DATE***

1

Big River Beach at Mendocino Bay

Coastal & Bay Shoreline

1113.300405  /  18010108
  • Indicator Bacteria
    • Source Unknown

3.9 Miles

2010

5A

2022


1

Bodega HU, Bodega Harbor HA

Bay & Harbor

11522000  /  18010111
  • Invasive Species
    • Source Unknown

810 Acres

2006

5A

2025


1

Bodega HU, Estero Americano HA, Americano Creek

River & Stream

11530000  /  18010111
  • Nutrients
    • Source Unknown

38 Miles

1996

5A

2025


1

Bodega HU, Estero Americano HA, estuary

Estuary

11530012  /  18010111
  • Nutrients
    • Source Unknown

199 Acres

1996

5A

2025
  • Sedimentation/Siltation
    • Source Unknown

199 Acres

1992

5A

2025


1

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

River & Stream

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

87 Miles

2018

5A

2025
  • Sediment
    • Source Unknown

87 Miles

2006

5A

2025


1

Campbell Cove

Coastal & Bay Shoreline

1115.210000,1115.220000  /  18010111
  • Indicator Bacteria
    • Source Unknown

0.24 Miles

2006

5A

2022


1

Caspar Headlands State Beach

Coastal & Bay Shoreline

1113.300404,1113.300405  /  18010108
  • Indicator Bacteria
    • Source Unknown

0.19 Miles

2010

5A

2022


1

Clam Beach (near Mad River mouth)

Coastal & Bay Shoreline

1109.100101  /  18010102
  • Indicator Bacteria
    • Source Unknown

1.5 Miles

2012

5A

2022


1

Clam Beach (near Strawberry Creek)

Coastal & Bay Shoreline

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

1.3 Miles

2006

5A

2022


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
    • Source Unknown

977 Acres

2010

5A

2025
    This listing applies to Copco 1 Reservoir.


1

Dead Lake

Lake & Reservoir

1103.110003  /  18010101
  • Mercury
    • Source Unknown

25 Acres

2012

5A

2025


1

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

River & Stream

1111.110103,1111.110201,1111.110202,1111.110301,1111.110302,1111.110303,1111.120201,1111.120202,1111.130102,1111.130201  /  18010105
  • Aluminum
    • Source Unknown

632 Miles

2010

5A

2025
    This listing for aluminum only applies to the mainstem Eel River in the Lower Eel River HA.
  • Oxygen, Dissolved
    • Source Unknown

632 Miles

2010

5A

2021
    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.
  • Sedimentation/Siltation
    • Source Unknown

632 Miles

1994

5B

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

632 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
    • Source Unknown

2706 Miles

2010

5A

2025
    This listing for aluminum only applies to the mainstem Middle Fork Eel River in the Eel River HU, Middle Fork HA, Eden Valley and Round Valley HSAs water body.
  • 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


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
    • Source Unknown

1588 Miles

2010

5A

2025
    This listing for aluminum only applies to the mainstem Eel River in the "Eel River HU, Middle Main HA".
  • Sedimentation/Siltation
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Source Unknown

1588 Miles

1994

5B

2005
  • Temperature, water
    • 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
    • Source Unknown

606 Miles

2010

5A

2031
    This listing only applies to the North Fork Eel River in the "Eel River HU, North Fork HA, Lower North Fork Eel River Watershed" waterbody.
  • Oxygen, Dissolved
    • Source Unknown

606 Miles

2014

5A

2031
    This listing only applies to Asbill Creek in the "Eel River HU, North Fork HA, Lower North Fork Eel River Watershed" water body.
  • Sedimentation/Siltation
    • Source Unknown

606 Miles

1994

5B

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

606 Miles

1996

5B

2002
    The Lower North Fork Eel River Watershed is the area that drains into the North Fork Eel River south of the Six Rivers National Forest boundary with the River.
  • pH
    • Source Unknown

606 Miles

2014

5A

2031
    This listing only applies to the North Fork Eel River within the Eel River HU, North Fork HA, Lower North Fork Eel River Watershed.


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
    • Source Unknown

1525 Miles

2010

5A

2031
    This listing for aluminum only applies to the mainstem South Fork Eel River in the South Fork Eel River HA. The listing does not include Elder Creek or any other tributary in the South Fork Eel River HA.
  • Sedimentation/Siltation
    • Source Unknown

1525 Miles

1994

5B

1999
  • 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
    • Source Unknown

1525 Miles

2012

5A

2031
    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
    • Source Unknown

3298 Miles

2010

5A

2031
    This listing only applies to the mainstem Eel River in the "Eel River HU, Upper Main HA (Includes Tomki Creek)" water body.
  • 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
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

3298 Miles

1996

5B

2004


1

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

Lake & Reservoir

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

1947 Acres

1998

5A

2012


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
    • Source Unknown

1294 Miles

2010

5A

2031
    This listing only applies to Yager Creek in the Eel River HU, Van Duzen HA. It does not apply to any other streams in this water body.
  • 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, Lower Elk River and Martin Slough

River & Stream

1110.000401,1110.000402,1110.000700  / 
  • Indicator Bacteria
    • Source Unknown

25 Miles

2012

5A

2025
    This listing only applies to the lower mainstem Elk River and Martin Slough, which lie within the Eureka Plain HU, Elk River Watershed, Lower Elk River and Martin Slough water body.
  • Sediment
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

25 Miles

2014

5B

2018


1

Eureka Plain HU, Elk River Watershed, Upper Elk River

River & Stream

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

93 Miles

2012

5A

2032
    Listing only applies to the Mainstem Elk River, South Fork Elk River, and North Fork Elk river within the Eureka Plain HU, Elk River Watershed, Upper Elk River water body.
  • Sediment
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

93 Miles

2014

5B

2018


1

Eureka Plain HU, Freshwater Creek

River & Stream

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

114 Miles

2010

5A

2031
    This listing only applies to the mainstem of Freshwater Creek in the "Eureka Plain HU, Freshwater Creek" waterbody.
  • Sedimentation/Siltation
    • Source Unknown

114 Miles

1998

5A

2017
    The Eureka Plain HU, Freshwater Creek includes the following Calwater Planning Watersheds (PWS): Upper Freshwater Creek (1110000101), Little Freshwater Creek (1110000103), Cloney Gulch (1110000102), Ryan Slough (1110000104), and Fay Slough (1110000105).


1

Eureka Plain HU, Gannon Slough

River & Stream

1110.000502,1110.000503  /  18010105
  • Indicator Bacteria
    • Source Unknown

2.7 Miles

2012

5A

2026
    This listing applies only to Campbell Creek, which lies within the Eureka Plain HU, Gannon Slough water body.


1

Eureka Plain HU, Humboldt Bay

Bay & Harbor

11000000  /  18010105
  • Dioxin Toxic Equivalents
    • Industrial Point Sources
    • Source Unknown
    • Waste Storage/Storage Tank Leaks (above ground)

16075 Acres

2006

5A

2031
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

16075 Acres

2002

5A

2025


1

Eureka Plain HU, Jacoby Creek watershed

River & Stream

1110.000503,1110.000504  /  18010102
  • Aluminum
    • Source Unknown

28 Miles

2010

5A

2031
    This listing applies only to the mainstem Jacoby Creek in the "Eureka Plain HU, Jacoby Creek watershed" waterbody.
  • Sediment
    • Source Unknown

28 Miles

2002

5A

2019
    The Eureka Plain HU, Jacoby Creek watershed includes the following Calwater Planning Watersheds (PWS): 110.00010 and 110.00013.


1

Eureka Plain HU, Jolly Giant Creek

River & Stream

1110.000501  /  18010102
  • Indicator Bacteria
    • Source Unknown

2.1 Miles

2012

5A

2025
    This listing applies to the mainstem of Jolly Giant Creek.


1

Eureka Plain HU, Salmon Creek

River & Stream

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

33 Miles

2010

5A

2031
    This listing only applies to the mainstem Salmon Creek in the "Eureka Plain HU, Salmon Creek" waterbody.
  • Manganese
    • Source Unknown

33 Miles

2014

5A

2031
    This listing only applies to the mainstem of Salmon Creek in the Eureka Plain HU, Salmon Creek waterbody.


1

Greenwood State Beach

Coastal & Bay Shoreline

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

0.78 Miles

2014

5A

2022


1

Hare Creek Beach

Coastal & Bay Shoreline

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

2.7 Miles

2010

5A

2022


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
    • Source Unknown

916 Acres

2012

5A

2025


1

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

River & Stream

10590000  /  18010204
  • Arsenic
    • Source Unknown

612 Miles

2014

5A

2032
  • Mercury
    • Source Unknown

612 Miles

2012

5A

2032
    This listing applies only to the Klamath Straits Drain, which lies within the Klamath River HU, Lost River HA, Tule Lake and Mt Dome HSA water body.
  • 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

612 Miles

1996

5B

2008
    The Klamath River HU, Lost River HA, Tule Lake and Mt Dome includes the following Hydrologic Sub Areas (HSAs): Mt. Dome HSA 105.91 and Tule Lake HSA 105.92.
  • Oxygen, Dissolved
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Internal Nutrient Cycling (primarily lakes)
    • Natural Sources

612 Miles

2012

5B

2008
  • pH (high)
    • Agricultural Return Flows
    • Agriculture
    • Agriculture-irrigation tailwater
    • Internal Nutrient Cycling (primarily lakes)
    • Natural Sources

612 Miles

2012

5B

2008


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
    • Source Unknown

1299 Miles

2010

5A

2031
    This listing only applies to the mainstem Klamath River within the "Klamath River HU, Lower Klamath HA, Klamath Glen HSA" waterbody.
  • Nutrients
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1299 Miles

1996

5B

2010
  • 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.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

1299 Miles

1996

5A

2025
    It is not the State Water Board's intent that this listing affect other actions related to decommissioning and removal of dams on the Klamath River.
  • 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

    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.


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

4325 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.
  • Nutrients
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

4325 Miles

1996

5B

2010
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

4325 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
    • Source Unknown

4325 Miles

2010

5A

2025
    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. The following streams are not significantly altered by anthropogenic activities, and are reference streams, which indicates attainment of sediment water quality objectives: (1) Portuguese Creek and its Tributaries; (2) Fort Goff Creek and its Tributaries; (3) Cedar Creek and its tributaries; (4) Clear Creek and its tributaries from the headwaters to the confluence with Tenmile Creek; (5) Twin Valley Creek and its tributaries; (6) Canyon Creek and its tributaries from the headwaters to confluence with Seiad Creek; (7) Elk Creek and its tributaries from the headwaters to Bear Creek; (8) Ten Mile Creek and its tributaries; and (9) North Fork Dillon Creek and its tributaries from the from the headwaters to Vann 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

4325 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
    • Source Unknown

1639 Miles

2010

5A

2031
    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.
  • Cyanobacteria hepatotoxic microcystins
    • Agriculture
    • Grazing-Related Sources
    • Habitat Modification
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1639 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.
  • Nutrients
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1639 Miles

1998

5B

2010
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture
    • Drainage/Filling Of Wetlands
    • Grazing-Related Sources
    • Irrigated Crop Production
    • Logging Road Construction/Maintenance
    • Road Construction
    • Silviculture

1639 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
    • Source Unknown

1639 Miles

2010

5A

2025
    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

1639 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.


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
    • Source Unknown

2444 Miles

2010

5A

2025
    This listing only applies to the middle mainstem Scott River from Young's Dam to Boulder Creek, which lies within the Klamath River HU, Scott River HA water body.
  • Biostimulatory Conditions
    • Source Unknown

2444 Miles

2012

5A

2025
    This listing only applies to the middle mainstem Scott River from Young's Dam to Boulder Creek, which lies within the Klamath River HU, Scott River HA water body.
  • Oxygen, Dissolved
    • Source Unknown

2444 Miles

2012

5A

2031
    This listing only applies to the middle mainstem Scott River from Young's Dam to Boulder Creek and Snicktaw Creek, 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.
  • pH
    • Source Unknown

2444 Miles

2012

5A

2025
    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
    • Source Unknown

1403 Miles

2010

5A

2031
    This listing only applies to the mainstem Shasta River, which lies within the "Klamath River HU, Shasta River HA" water body.
  • Temperature, water
    • Agriculture-irrigation tailwater
    • Flow Alteration/Regulation/Modification
    • Habitat Modification
    • Removal of Riparian Vegetation

1403 Miles

1996

5B

2007


1

Luffenholtz Beach

Coastal & Bay Shoreline

10810012  /  18010102
  • Indicator Bacteria
    • Source Unknown

0.11 Miles

2006

5A

2022


1

MacKerricher State Park (near Mill Creek)

Coastal & Bay Shoreline

1113.200504,1113.200505,1113.200506,1113.200507  /  18010108
  • Indicator Bacteria
    • Source Unknown

5.1 Miles

2010

5A

2022


1

Mackerricher State Park (near Virgin Creek)

Coastal & Bay Shoreline

1113.200504,1113.200505,1113.200506,1113.200507  /  18010108
  • Indicator Bacteria
    • Source Unknown

5.1 Miles

2012

5A

2022


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
    • Source Unknown

1882 Miles

2010

5A

2031
    This listing only applies to the mainstem Mad River which lies within the "Mad River HU, Mad River" water body.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

1882 Miles

1994

5B

2007
  • Temperature, water
    • Source Unknown

1882 Miles

2002

5A

2031
  • Turbidity
    • Source Unknown

1882 Miles

1994

5A

2031


1

Mad River HU, Norton Creek

River & Stream

1109.100200  /  18010102
  • Indicator Bacteria
    • Source Unknown

7.1 Miles

2012

5A

2025
    This listing applies only to the mainstem of Widow White Creek, which lies within the Mad River HU.


1

Mendocino Coast HU, Albion River HA, Albion River

River & Stream

1113.400001,1113.400002,1113.400003,1113.400006  /  18010108
  • 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

2019


1

Mendocino Coast HU, Big River HA, Berry Gulch

River & Stream

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

28 Miles

2012

5A

2025
    This listing only applies to Rocky Gulch, the Little North Fork, and Manley Gulch which lie within the "Mendocino Coast HU, Big River HA, Berry Gulch" water body.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

28 Miles

1800

5A

2025
    This listing only applies to the Little North Fork, which lies within the Mendocino Coast HU, Big River HA, Berry Gulch water body.


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
    • Source Unknown

448 Miles

2012

5A

2025
    This listing only applies to Cookhouse Gulch, the mainstem Big River, and Railroad Gulch which lie within the "Mendocino Coast HU, Big River HA, Big River" water body.
  • 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

2019


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
    • Source Unknown

243 Miles

1994

5B

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

243 Miles

2002

5A

2019
    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.


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
    • Source Unknown

685 Miles

2010

5A

2025
    This listing for aluminum only applies to the mainstem Gualala River in the Gualala River HA.
  • 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

2019
    The Gualala River is listed for temperature, with the exception of the Little North Fork and its tributaries.


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
    • Source Unknown

786 Miles

2012

5A

2031
    This listing only applies to the mainstem Navarro River in the "Mendocino Coast HU, Navarro River HA" 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
  • 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
  • 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

2019
    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
    • Source Unknown

41 Miles

2012

5A

2025
    This listing applies only to Pudding Creek Lagoon, which lies within the Mendocino Coast HU, Noyo River HA, Pudding Creek water body.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

41 Miles

2006

5A

2031
    This listing only applies to the mainstem of Pudding Creek, which lies within the Mendocino Coast HU, Noyo River HA, Pudding Creek water body. This is a refinement of the original 2006 303 (d) listing and reflects the extent of impairment as documented by the data submitted.


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
  • 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

2025
    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
    • Source Unknown

0.93 Miles

2010

5A

2022


1

Navarro River Beach

Coastal & Bay Shoreline

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

0.53 Miles

2014

5A

2022


1

Old Home Beach

Coastal & Bay Shoreline

10810012  /  18010102
  • Indicator Bacteria
    • Source Unknown

0.03 Miles

2012

5A

2022


1

Plaskett Lake

Lake & Reservoir

1111.730203  /  18010104
  • Mercury
    • Source Unknown

6.3 Acres

2012

5A

2031


1

Pudding Creek Beach

Coastal & Bay Shoreline

1113.200507,1113.200508  /  18010108
  • Indicator Bacteria
    • Source Unknown

1.5 Miles

2010

5A

2022


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
    • Source Unknown

524 Miles

2010

5A

2031
    This listing only applies to the mainstem of Redwood Creek in the "Redwood Creek HU, Redwood Creek" waterbody.
  • 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
    • Source Unknown

524 Miles

2002

5A

2031
    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
    • Source Unknown

0.08 Miles

2014

5A

2022


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
    • Source Unknown

151 Miles

2010

5A

2032
    This listing only applies to the mainstem of Austin Creek in the "Russian River HU, Lower Russian River HA, Austin Creek HSA" waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Source Unknown

151 Miles

1998

5A

2025
    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

2031


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
    • Source Unknown

249 Miles

2010

5A

2025
    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.
  • Indicator Bacteria
    • See TMDL documentation

249 Miles

2002

5A

2020
    The listing only applies to the Porter Creek-Russian River HUC-12, Dutch Bill Creek-Russian River HUC-12, and Willow Creek-Russian River HUC-12 within the "Russian River HU, Lower Russian River HA, Guerneville HSA" water body.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

249 Miles

1998

5A

2025
    Sediment impacts in Russian River tributaries prompted listing entire Russian River watershed for sediment TMDL.
  • Specific Conductivity
    • Source Unknown

249 Miles

2010

5A

2025
    This listing only applies to the mainstem Russian River at Healdsburg Memorial Beach from the railroad bridge to the Highway 101 bridge, which lies within the "Russian River HU, Lower Russian River HA, Guerneville HSA" water body.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

249 Miles

2002

5A

2019


1

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

River & Stream

1114.110103,1114.110201,1114.110202  /  18010111
  • Indicator Bacteria
    • See TMDL documentation

50 Miles

2010

5A

2020
    This listing applies to the Green Valley Creek HUC-12 within the "Russian River HU, Lower Russian River HA, Guerneville HSA, Green Valley Creek watershed" water body.
  • Oxygen, Dissolved
    • Source Unknown

50 Miles

2010

5A

2021
    This listing only applies to Green Valley Creek in the "Russian River HU, Lower Russian River HA, Guerneville HSA, Green Valley Creek watershed" water body.


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

180 Miles

1998

5A

2025
    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

2019
    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.


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
    • Source Unknown

436 Miles

2010

5A

2031
    This listing only applies to the mainstem Russian River in the "Russian River HU, Middle Russian River HA, Geyserville HSA" waterbody.
  • Diazinon
    • Source Unknown

436 Miles

2010

5A

2025
    This listing applies only to Foss Creek which lies within the "Russian River HU, Middle Russian River HA, Geyserville HSA" waterbody.
  • Indicator Bacteria
    • See TMDL documentation

436 Miles

2010

5A

2020
    The listing only applies to the Oat Valley Creek-Russian River HUC-12 and the Brooks Creek-Russian River HUC-12 within the "Russian River HU, Middle Russian River HA, Geyserville HSA" water body.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

436 Miles

1998

5A

2025
    Sediment impacts in Russian River tributaries prompted listing entire Russian River watershed for sediment TMDL.
  • Specific Conductivity
    • Source Unknown

436 Miles

2010

5A

2031
    This listing only applies to the mainstem Russian River in the "Russian River HU, Lower Russian River HA, Geyserville HSA" waterbody.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

436 Miles

2002

5A

2031


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
    • See TMDL documentation

16 Miles

2012

5A

2020
    This listing applies to the portions of the Lower Laguna de Santa Rosa HUC-12 and Upper Laguna de Santa Rosa HUC-12 within the "Russian River HU, Middle Russian River HA, Laguna HSA, mainstem Laguna de Santa Rosa" water body.
  • Mercury
    • Source Unknown

16 Miles

2012

5A

2025
  • Oxygen, Dissolved
    • Source Unknown

16 Miles

2012

5A

2023
    The Laguna de Santa Rosa 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 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. 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).
  • Phosphorus
    • Source Unknown

16 Miles

2012

5A

2023
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

16 Miles

2012

5A

2023
    The entire Russian River watershed (including the mainstem Laguna de Santa Rosa) is listed for sedimentation.
  • Temperature, water
    • Source Unknown

16 Miles

2012

5A

2023
    Entire Russian River watershed (including the mainstem 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.


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  / 
  • Indicator Bacteria
    • See TMDL documentation

116 Miles

2012

5A

2020
    This listing applies to the portions of the Lower Laguna de Santa Rosa HUC-12 and Upper Laguna de Santa Rosa HUC-12 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.
  • Oxygen, Dissolved
    • Source Unknown

116 Miles

2012

5A

2023
    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.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

116 Miles

2012

5A

2023
    The entire Russian River watershed (including the tributaries to the Laguna de Santa Rosa) is listed for sedimentation.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

116 Miles

2012

5A

2023
    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.


1

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

River & Stream

1114.230201,1114.230202  / 
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

47 Miles

2012

5A

2023
    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

2023
    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.


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
    • Source Unknown

5.3 Miles

2012

5A

2025
  • Indicator Bacteria
    • See TMDL documentation

5.3 Miles

2014

5A

2020
    This listing applies to the portion of the Porter Creek-Mark West Creek HUC-12 within the "Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek downstream of the confluence with the Laguna de Santa Rosa" waterbody.
  • Manganese
    • Source Unknown

5.3 Miles

2012

5A

2025
  • Oxygen, Dissolved
    • Source Unknown

5.3 Miles

2012

5A

2023
    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).
  • Phosphorus
    • Source Unknown

5.3 Miles

2012

5A

2023
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

5.3 Miles

2012

5A

2023
    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment.
  • Temperature, water
    • Other

5.3 Miles

2012

5A

2023
    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.


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  / 
  • Indicator Bacteria
    • See TMDL documentation

25 Miles

2012

5A

2020
    This listing applies to the portion of the Porter Creek-Mark West Creek HUC-12 within the "Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek downstream of the confluence with the Laguna de Santa Rosa" waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

25 Miles

2012

5A

2023
    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment.
  • Temperature, water
    • Other

25 Miles

2012

5A

2023
    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.


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  / 
  • Indicator Bacteria
    • See TMDL documentation

67 Miles

2014

5A

2020
    This listing applies to the portions of the Porter Creek-Mark West Creek HUC-12 within the "Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek downstream of the confluence with the Laguna de Santa Rosa" waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

67 Miles

2012

5A

2023
    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

2023
    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.


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  / 
  • Indicator Bacteria
    • See TMDL documentation

21 Miles

2012

5A

2020
    This listing applies to the portions of the Lower Santa Rosa Creek HUC-12 and Upper Santa Rosa Creek HUC-12 within the "Russian River HU, Middle Russian River HA, Santa Rosa HSA, mainstem Santa Rosa Creek" water body.
  • Manganese
    • Source Unknown

21 Miles

2014

5A

2031
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

21 Miles

2012

5A

2023
    The entire Russian River watershed (including Santa Rosa Creek) is listed for sedimentation.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

21 Miles

2012

5A

2023
    The entire Russian River watershed (including Santa Rosa Creek) is listed for temperature.


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  / 
  • Indicator Bacteria
    • See TMDL documentation

112 Miles

2012

5A

2020
    This listing applies to the portions of the Lower Santa Rosa Creek HUC-12 and Upper Santa Rosa Creek HUC-12 within the "Russian River HU, Middle Russian River HA, Santa Rosa HSA, tributaries to Santa Rosa Creek" water body.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

112 Miles

2012

5A

2023
    The entire Russian River watershed (including tributaries to Santa Rosa Creek) is listed for sedimentation.
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

112 Miles

2012

5A

2023
    The entire Russian River watershed (including tributaries to Santa Rosa Creek) is listed for temperature.


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
  • Indicator Bacteria
    • See TMDL documentation

528 Miles

2014

5A

2020
    This listing only applies to the West Slough-Dry Creek HUC-12 within the "Russian River HU, Middle Russian River HA, Warm Springs HSA" waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

528 Miles

1998

5A

2025
    Sediment impacts in Russian River tributaries prompted listing entire Russian River watershed for sediment .
  • Temperature, water
    • Source Unknown

528 Miles

2002

5A

2024


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
    • Source Unknown

2639 Acres

2002

5A

2012


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
    • Source Unknown

323 Miles

2010

5A

2031
    This listing only applies to the mainstem Russian River in the "Russian River HU, Upper Russian River HA, Coyote Valley HSA" waterbody.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

323 Miles

1998

5A

2025
    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

2019
    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.


1

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

Lake & Reservoir

1114.320600  /  18010110
  • Mercury
    • Source Unknown

1698 Acres

2006

5A

2012


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

256 Miles

1998

5A

2025
    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

2019
    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.


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
    • Source Unknown

753 Miles

2010

5A

2025
    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.
  • Manganese
    • Source Unknown

753 Miles

2012

5A

2031
    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.
  • Sedimentation/Siltation
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation
    • Streambank Modification/Destabilization

753 Miles

1998

5A

2025
    Russian River Watershed tributary sediment impairments led to listing of entire watershed for sediment .
  • Temperature, water
    • Source Unknown

753 Miles

2002

5A

2024


1

Ruth Lake

Lake & Reservoir

1109.400301,1109.400302  /  18010102
  • Mercury
    • Source Unknown

1075 Acres

2010

5A

2025


1

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

Lake & Reservoir

1114.220201  / 
  • Mercury
    • Source Unknown

72 Acres

2014

5A

2031


1

Shastina, Lake

Lake & Reservoir

1105.500707,1105.500708  /  18010207
  • Mercury
    • Source Unknown

1681 Acres

2010

5A

2021


1

Smith River HU, Delilah Creek

River & Stream

1103.110003,1103.110004  / 
  • Copper
    • Source Unknown

2.2 Miles

2014

5A

2032


1

Smith River HU, Elk Creek

River & Stream

1103.110002,1103.110003  / 
  • Oxygen, Dissolved
    • Source Unknown

3.2 Miles

2014

5A

2031


1

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

River & Stream

1103.110002,1103.110003  / 
  • Oxygen, Dissolved
    • Source Unknown

1.4 Miles

2014

5A

2031


1

Smith River HU, Tilas Slough

River & Stream

1103.110003  / 
  • Copper
    • Source Unknown

1.6 Miles

2014

5A

2033


1

Trinidad HU, Little River HA

River & Stream

1107.200302,1108.200001,1108.200002,1108.200003  /  18010102
  • Indicator Bacteria
    • Source Unknown

85 Miles

2012

5A

2025
    This listing applies only to the mainstem of the Little River, which lies within the Trinidad HU, Little River HA water body.


1

Trinidad State Beach

Coastal & Bay Shoreline

1108.100002  /  18010102
  • Indicator Bacteria
    • Source Unknown

0.99 Miles

2006

5A

2022


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
    • Source Unknown

15587 Acres

2006

5A

2019


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
    • Source Unknown

3931 Miles

2010

5A

2031
    This listing only applies to the mainstem Trinity River in the "Trinity River HU, Lower Trinity HA" waterbody.
  • 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.


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
  • Boron
    • Source Unknown

4201 Miles

2014

5A

2032
    This listing only applies to the South Fork Trinity River in the "Trinity River HU, South Fork HA" 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
  • Temperature, water
    • Flow Alteration/Regulation/Modification
    • Removal of Riparian Vegetation

4201 Miles

2002

5A

2019


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
    • Source Unknown

331 Miles

2006

5A

2019
    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.
  • 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.


1

Van Damme State Park (beach area)

Coastal & Bay Shoreline

1113.400004  /  18010108
  • Indicator Bacteria
    • Source Unknown

0.38 Miles

2010

5A

2022


2

Anderson Reservoir

Lake & Reservoir

2205.300501,2205.300502  /  18050003
  • Mercury
    • Source Unknown

1022 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

1022 Acres

2006

5A

2019


2

Arroyo Las Positas

River & Stream

2204.300602,2204.300900  /  18050004
  • Diazinon
    • Urban Runoff/Storm Sewers

14 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
    • Source Unknown

14 Miles

2010

5A

2021


2

Arroyo Mocho

River & Stream

2204.300301,2204.300302,2204.300303,2204.300900  /  18050004
  • 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.
  • Temperature, water
    • Source Unknown

35 Miles

2010

5A

2021


2

Bon Tempe Reservoir

Lake & Reservoir

2201.130204  /  18050005
  • Mercury
    • Source Unknown

121 Acres

2006

5A

2013


2

Briones Reservoir

Lake & Reservoir

20660011  /  18050002
  • Mercury
    • Source Unknown

574 Acres

2014

5A

2029


2

Butano Creek

River & Stream

2202.400301,2202.400302  /  18050006
  • Sedimentation/Siltation
    • Source Unknown

19 Miles

1998

5A

2013
    Impairment to steelhead habitat.


2

Calaveras Reservoir

Lake & Reservoir

2204.300408,2204.300409  /  18050004
  • Mercury
    • Source Unknown

1503 Acres

2010

5A

2021


2

Carquinez Strait

Estuary

20710020  /  18050001
  • Chlordane
    • Source Unknown

5657 Acres

2002

5A

2013
    This listing was made by USEPA.
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

5657 Acres

2002

5A

2013
  • Dieldrin
    • Source Unknown

5657 Acres

1998

5A

2013
    This listing was originally made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

5657 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

5657 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

5657 Acres

1998

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Source Unknown

5657 Acres

1996

5B

2008
    Current data indicate fish consumption and wildlife consumption impacted uses. 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)
    • Source Unknown

5657 Acres

1998

5B

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

5657 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
    • Source Unknown

5657 Acres

1998

5B

2016


2

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

Bay & Harbor

20440010  /  18050004
  • Chlordane
    • Source Unknown

40 Acres

1998

5A

2013
    This listing was made by USEPA.
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

40 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dieldrin
    • Source Unknown

40 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

40 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

40 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

40 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • 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)
    • Source Unknown

40 Acres

1800

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • 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)
    • 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
    • Source Unknown

40 Acres

1990

5A

2019
    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).


2

Codornices Creek

River & Stream

20330011  /  18050002
  • Temperature, water
    • Source Unknown

2 Miles

2010

5A

2021
  • Trash
    • Source Unknown

2 Miles

2010

5C



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
  • Diazinon
    • Source Unknown

58 Miles

1998

5B

2007
  • Toxicity
    • Source Unknown

58 Miles

2014

5A

2029
    The impairment is based on sediment toxicity data.
  • Trash
    • Source Unknown

58 Miles

2010

5C



2

Coyote Reservoir

Lake & Reservoir

20530032  /  18050003
  • Mercury
    • Source Unknown

424 Acres

2014

5A

2029


2

Del Valle Reservoir

Lake & Reservoir

2204.300203,2204.300204  /  18050004
  • Mercury
    • Source Unknown

1012 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

1012 Acres

2006

5A

2019


2

Golden Hinde Beach

Coastal & Bay Shoreline

20114033  /  18050005
  • Indicator Bacteria
    • Source Unknown

0.11 Miles

2006

5A

2029
    This waterbody remains listed solely due to exceedances of the total coliform objective. The State Board will soon rely on the enterococcus objective for determining whether or not REC1 is impaired in marine and estuarine waters. At that time, this waterbody will likely be eligible for de-listing if current water quality with respect to enterococcus is maintained.


2

Guadalupe Slough

River & Stream

2205.500400  /  18050003
  • Toxicity
    • Source Unknown

6.7 Miles

2014

5A

2029
    The impairment is based on water column toxicity data.


2

Henne, Lake

Lake & Reservoir

2206.500202  /  18050002
  • Mercury
    • Source Unknown

17 Acres

2014

5A

2029


2

Islais Creek

Estuary

20440010  /  18050004
  • Ammonia
    • Source Unknown

46 Acres

2002

5A

2019
  • Chlordane
    • Source Unknown

46 Acres

1800

5A

2019
  • Dieldrin
    • Source Unknown

46 Acres

1800

5A

2019
  • Hydrogen Sulfide
    • Source Unknown

46 Acres

2002

5A

2019
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • Source Unknown

46 Acres

2014

5A

2019
  • Toxicity
    • Source Unknown

46 Acres

2014

5A

2019


2

Kirker Creek

River & Stream

2207.310102,2207.310300,2207.340100,2207.340200  /  18050001
  • Pyrethroids
    • Channelization
    • Surface Runoff
    • Urban Runoff--Erosion and Sedimentation

8 Miles

2010

5B

2007
  • Toxicity
    • Source Unknown

8 Miles

2010

5A

2021
  • Trash
    • Source Unknown

8 Miles

2010

5C



2

Kiteboard Beach (San Francisco Bay, Lower)

Coastal & Bay Shoreline

20410010  /  18050004
  • Indicator Bacteria
    • Source Unknown

0.03 Miles

2014

5A

2029


2

Lafayette Reservoir

Lake & Reservoir

2207.320102  /  18050001
  • Mercury
    • Source Unknown

107 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

107 Acres

2006

5A

2019


2

Lagunitas Creek

River & Stream

2201.110000,2201.120302,2201.130201,2201.130203,2201.130204,2201.130301  /  18050005
  • Nutrients
    • Source Unknown

16 Miles

1996

5A

2022
    Tributary to Tomales Bay. TMDLs will be developed as part of evolving watershed management effort. Additional monitoring and assessment needed.
  • Pathogens
    • Source Unknown

16 Miles

1992

5B

2007
  • Sedimentation/Siltation
    • Source Unknown

16 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
    • Source Unknown

308 Acres

2006

5A

2019
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

308 Acres

2006

5A

2019
  • Dieldrin
    • Source Unknown

308 Acres

2006

5A

2019
  • Mercury
    • Source Unknown

308 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

308 Acres

2006

5A

2019


2

Lake Chabot (Solano Co)

Lake & Reservoir

20650080  /  18050002
  • Mercury
    • Source Unknown

48 Acres

2014

5A

2029


2

Lake Herman

Lake & Reservoir

2207.210301,2207.210302  /  18050001
  • Mercury
    • Source Unknown

107 Acres

1992

5A

2013
    Additional monitoring and assessment needed. Problem potentially due to historical mining.


2

Lake Merced

Lake & Reservoir

2202.100000  /  18050006
  • Oxygen, Dissolved
    • Source Unknown

308 Acres

2014

5A

2019
    This listing was made by USEPA.
  • pH
    • Source Unknown

308 Acres

2002

5A

2019
    This listing was made by USEPA.


2

Lake Merritt

Lake & Reservoir

2204.200400  /  18050004
  • Organic Enrichment/Low Dissolved Oxygen
    • Source Unknown

148 Acres

2002

5A

2019
    This listing was made by USEPA.
  • Trash
    • Source Unknown

148 Acres

1998

5A

2019


2

Lexington Reservoir

Lake & Reservoir

20540020  /  18050003
  • Mercury
    • Source Unknown

340 Acres

2014

5A

2029


2

Los Gatos Creek, Lower

River & Stream

2205.400201,2205.400202,2205.400500  / 
  • Temperature, water
    • Source Unknown

12 Miles

2014

5A

2031
    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
    • Source Unknown

583 Acres

2014

5A

2029


2

Mission Creek

Estuary

20440010  /  18050004
  • Ammonia
    • Source Unknown

8.5 Acres

2002

5A

2019
  • Chlordane
    • Source Unknown

8.5 Acres

1800

5A

2013
  • Dieldrin
    • Source Unknown

8.5 Acres

1800

5A

2013
  • Hydrogen Sulfide
    • Source Unknown

8.5 Acres

2002

5A

2019
  • Lead
    • Source Unknown

8.5 Acres

1800

5A

2019
  • Mercury
    • Source Unknown

8.5 Acres

2002

5A

2019
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • Source Unknown

8.5 Acres

2002

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

8.5 Acres

1800

5B

2010
  • Silver
    • Source Unknown

8.5 Acres

1800

5A

2019
  • Zinc
    • Source Unknown

8.5 Acres

1800

5A

2019


2

Mt. Diablo Creek

River & Stream

2207.310102,2207.310103,2207.310104  /  18050001
  • Diazinon
    • 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
    • Source Unknown

14 Miles

2010

5A

2021


2

Napa River, Mare Island Strait

River & Stream

2206.100000  / 
  • Chlordane
    • Source Unknown

3.8 Miles

2014

5A

2029
  • Dieldrin
    • Source Unknown

3.8 Miles

2014

5A

2029
  • Mercury
    • Source Unknown

3.8 Miles

2014

5B

2008
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

3.8 Miles

2014

5B

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

3.8 Miles

2016

5A

2029


2

Napa River, tidal

River & Stream

2206.100000,2206.500405  / 
  • Nutrients
    • Agriculture
    • Onsite Wastewater Systems (Septic Tanks)

23 Miles

2014

5A

2018
  • Pathogens
    • Agriculture
    • Onsite Wastewater Systems (Septic Tanks)

23 Miles

2014

5B

2001


2

Nicasio Reservoir

Lake & Reservoir

20113012  /  18050005
  • Mercury
    • Source Unknown

829 Acres

1998

5A

2013


2

Oakland Inner Harbor

Bay & Harbor

2204.200400  / 
  • Indicator Bacteria
    • Source Unknown

448 Acres

2014

5A

2029


2

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

Bay & Harbor

20420040  /  18050004
  • Chlordane
    • Source Unknown

0.93 Acres

1998

5A

2013
    This listing was made by USEPA.
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

0.93 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dieldrin
    • Source Unknown

0.93 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

0.93 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

0.93 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

0.93 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Source Unknown

0.93 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)
    • Source Unknown

0.93 Acres

2016

5B

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

0.93 Acres

1990

5A

2019
    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).
  • Toxicity
    • Source Unknown

0.93 Acres

2014

5A

2019


2

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

Bay & Harbor

20420040  /  18050004
  • Chlordane
    • Source Unknown

1.8 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Copper
    • Source Unknown

1.8 Acres

1800

5A

2019
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

1.8 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dieldrin
    • Source Unknown

1.8 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

1.8 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

1.8 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

1.8 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Lead
    • Source Unknown

1.8 Acres

1800

5A

2019
  • Mercury
    • Source Unknown

1.8 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) (sediment)
    • Source Unknown

1.8 Acres

2016

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

1.8 Acres

1998

5B

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

1.8 Acres

1990

5A

2019
    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).
  • Zinc
    • Source Unknown

1.8 Acres

1800

5A

2019


2

Oiger Quarry Ponds

Lake & Reservoir

20530051  /  18050003
  • Mercury
    • Source Unknown

69 Acres

2014

5A

2029


2

Oyster Point Marina (San Francisco Bay, Lower)

Coastal & Bay Shoreline

20410010  /  18050004
  • Indicator Bacteria
    • Source Unknown

0.03 Miles

2014

5A

2029


2

Pacific Ocean at Pillar Point

Coastal & Bay Shoreline

2202.210002  /  18050006
  • Mercury
    • Source Unknown

0.63 Miles

2006

5A

2019


2

Pacific Ocean at Pillar Point Beach

Coastal & Bay Shoreline

20221012  /  18050006
  • Indicator Bacteria
    • Source Unknown

1.1 Miles

2014

5A

2019


2

Pacific Ocean at Venice Beach

Coastal & Bay Shoreline

2202.210002,2202.220001  /  18050006
  • Indicator Bacteria
    • Source Unknown

0.38 Miles

2014

5A

2019


2

Paradise Cove Beach (San Francisco Bay, Central)

Coastal & Bay Shoreline

20312010  /  18050002
  • Indicator Bacteria
    • Source Unknown

0.03 Miles

2014

5A

2029
    This waterbody listing is based exclusively on an unacceptable number of exceedance of the monthly median total coliform indicator. The State Board is finalizing a policy that will result in this indicator no longer being applicable when determining the protection of the contact recreation beneficial use. Therefore, we expect that this waterbody will be de-listed in a subsequent round of assessment provided that water quality is maintained relative to the enterococcus indicator.


2

Permanente Creek

River & Stream

2205.500201,2205.500400  /  18050003
  • 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
    • Source Unknown

14 Miles

2014

5A

2021
  • Toxicity
    • Source Unknown

14 Miles

2010

5A

2021
  • Trash
    • Source Unknown

14 Miles

2010

5C



2

Pescadero Creek

River & Stream

2202.400101,2202.400103,2202.400104,2202.400105,2202.400106,2202.400301  /  18050006
  • Sedimentation/Siltation
    • Source Unknown

29 Miles

1998

5A

2016
    If California Department of Fish and Game and the National Marine Fisheries Service find that for this water body fish populations are not impacted, the State Water Board supports removing this water body and pollutant from the list.


2

Petaluma River

River & Stream

2206.300200,2206.300400  /  18050002
  • Diazinon
    • Source Unknown

22 Miles

2002

5A

2019
    Data source: Abelli-Amen, Petaluma Tree Planters, 1999.
  • Nutrients
    • Source Unknown

22 Miles

1998

5A

2020
    TMDL will be developed as part of ongoing watershed management effort. Additional monitoring and assessment needed.
  • Pathogens
    • Source Unknown

22 Miles

1998

5A

2019
  • Sedimentation/Siltation
    • Source Unknown

22 Miles

1998

5A

2019
  • Trash
    • Source Unknown

22 Miles

2010

5C



2

Petaluma River (mouth)

River & Stream

20630040  /  18050002
  • Diazinon
    • Source Unknown

1.1 Miles

2002

5A

2019
  • Nickel
    • Source Unknown

1.1 Miles

2002

5A

2019
    Exceedance of California Toxic Rule dissolved criteria and National Toxic Rule total criteria; elevated water and sediment tissue levels.
  • Nutrients
    • Source Unknown

1.1 Miles

2002

5A

2020
    TMDL will be developed as part of ongoing watershed management effort. Additional monitoring and assessment needed.
  • Pathogens
    • Source Unknown

1.1 Miles

2002

5A

2019
    TMDL will be developed as part of ongoing watershed management effort. Additional monitoring and assessment needed.


2

Pilarcitos Lake

Lake & Reservoir

2202.220003  /  18050006
  • Mercury
    • Source Unknown

97 Acres

2014

5A

2029


2

Pomponio Creek

River & Stream

2202.400200  /  18050006
  • Indicator Bacteria
    • Source Unknown

6.9 Miles

2014

5A

2019


2

Richardson Bay

Bay & Harbor

20312010  /  18050002
  • Chlordane
    • Source Unknown

2439 Acres

1998

5A

2013
    This listing was made by USEPA.
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

2439 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dieldrin
    • Source Unknown

2439 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

2439 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

2439 Acres

1998

5A

2019
    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.
  • Indicator Bacteria
    • Source Unknown

2439 Acres

2014

5B

2009
  • Invasive Species
    • Source Unknown

2439 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Source Unknown

2439 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)
    • Source Unknown

2439 Acres

1998

5B

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

2439 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

20710010  /  18050001
  • Chlordane
    • Source Unknown

41736 Acres

1998

5A

2029
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

41736 Acres

1998

5A

2013
  • Dieldrin
    • Source Unknown

41736 Acres

1998

5A

2013
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

41736 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

41736 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

41736 Acres

1998

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Source Unknown

41736 Acres

1998

5B

2008
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

41736 Acres

1998

5B

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

41736 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
    • Source Unknown

41736 Acres

1998

5B

2016


2

San Francisco Bay, Central

Bay & Harbor

20312010  /  18050004
  • Chlordane
    • Source Unknown

70992 Acres

1998

5A

2013
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

70992 Acres

1998

5A

2013
  • Dieldrin
    • Source Unknown

70992 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

70992 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

70992 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

70992 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Atmospheric Deposition
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Nonpoint Source
    • Resource Extraction

70992 Acres

1992

5B

2008
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

70992 Acres

1998

5B

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

70992 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
    • Source Unknown

70992 Acres

1990

5B

2016
  • Trash
    • Source Unknown

70992 Acres

2010

5A

2021


2

San Francisco Bay, Lower

Bay & Harbor

20410010  /  18050004
  • Chlordane
    • Source Unknown

92274 Acres

1998

5A

2013
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

92274 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dieldrin
    • Source Unknown

92274 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

92274 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

92274 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

92274 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Source Unknown

92274 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: water quality objective exceedances. Elevated sediment levels and elevated tissue levels.
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

92274 Acres

1998

5B

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

92274 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
    • Source Unknown

92274 Acres

2010

5A

2021


2

San Francisco Bay, South

Bay & Harbor

20510000  /  18050003
  • Chlordane
    • Source Unknown

9204 Acres

1990

5A

2013
    This listing was made by USEPA.
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

9204 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dieldrin
    • Source Unknown

9204 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

9204 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

9204 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

9204 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Source Unknown

9204 Acres

1992

5B

2008
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

9204 Acres

1992

5B

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

9204 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
    • Source Unknown

9204 Acres

1998

5A

2021


2

San Francisquito Creek

River & Stream

2205.500101,2205.500400  /  18050003
  • Diazinon
    • Source Unknown

12 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.
  • Sedimentation/Siltation
    • Source Unknown

12 Miles

1998

5A

2013
    Impairment to steelhead habitat.
  • Trash
    • Source Unknown

12 Miles

2010

5C



2

San Gregorio Creek

River & Stream

2202.300002,2202.300004  /  18050006
  • Indicator Bacteria
    • Source Unknown

11 Miles

2014

5A

2019
  • Sedimentation/Siltation
    • Source Unknown

11 Miles

1998

5A

2013
    Impairment to steelhead habitat.


2

San Leandro Bay (part of SF Bay, Lower)

Bay & Harbor

20420040  /  18050004
  • Chlordane
    • Source Unknown

588 Acres

1998

5A

2013
    This listing was made by USEPA.
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

588 Acres

2018

5A

2029
  • Dieldrin
    • Source Unknown

588 Acres

1998

5A

2013
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

588 Acres

1998

5A

2019
  • Furan Compounds
    • Source Unknown

588 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

588 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Lead (sediment)
    • Source Unknown

588 Acres

2016

5A

2019
  • Mercury
    • Source Unknown

588 Acres

1992

5B

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

588 Acres

2016

5A

2019
  • Pesticides (sediment)
    • Source Unknown

588 Acres

2016

5A

2019
  • Zinc
    • Source Unknown

588 Acres

1800

5A

2019


2

San Mateo Creek, Lower

River & Stream

2204.400201,2204.400303,2204.400400  /  18050004
  • Toxicity
    • Source Unknown

5.8 Miles

2010

5A

2029
    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

20610010  /  18050002
  • Chlordane
    • Source Unknown

68349 Acres

1998

5A

2013
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

68349 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dieldrin
    • Source Unknown

68349 Acres

1998

5A

2013
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

68349 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

68349 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

68349 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Source Unknown

68349 Acres

1990

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)
    • Source Unknown

68349 Acres

1998

5B

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

68349 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
    • Source Unknown

68349 Acres

1990

5B

2016


2

San Pablo Reservoir

Lake & Reservoir

2206.600102  /  18050002
  • Chlordane
    • Source Unknown

785 Acres

2006

5A

2019
  • Dieldrin
    • Source Unknown

785 Acres

2006

5A

2019
  • Heptachlor epoxide
    • Source Unknown

785 Acres

2006

5A

2019
  • Mercury
    • Source Unknown

785 Acres

2002

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

785 Acres

2006

5A

2019
  • Toxaphene
    • Source Unknown

785 Acres

2006

5A

2019


2

San Vicente Creek

River & Stream

2202.210002  /  18050006
  • Indicator Bacteria
    • Source Unknown

3.9 Miles

2014

5A

2019


2

Shadow Cliffs Reservoir

Lake & Reservoir

20430080  /  18050004
  • Mercury
    • Source Unknown

90 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

90 Acres

2006

5A

2019


2

Sonoma Creek, tidal

River & Stream

2206.400201  / 
  • Nutrients
    • Agriculture
    • Onsite Wastewater Systems (Septic Tanks)

9.9 Miles

2014

5A

2018
  • Pathogens
    • Onsite Wastewater Systems (Septic Tanks)

9.9 Miles

2014

5B

2008


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

2023


2

Stevens Creek

River & Stream

2205.500301,2205.500302,2205.500400  /  18050003
  • Diazinon
    • Source Unknown

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
    • Source Unknown

21 Miles

2010

5A

2021
  • Toxicity
    • Source Unknown

21 Miles

2006

5A

2019
  • Trash
    • Source Unknown

21 Miles

2010

5C



2

Stevens Creek Reservoir

Lake & Reservoir

20550031  /  18050003
  • Chlordane
    • Source Unknown

85 Acres

2006

5A

2019
  • Dieldrin
    • Source Unknown

85 Acres

2006

5A

2019
  • Mercury
    • Source Unknown

85 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

85 Acres

2006

5A

2019


2

Suisun Bay

Bay & Harbor

20710020  /  18050001
  • Chlordane
    • Agriculture

25335 Acres

1998

5A

2029
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

25335 Acres

1998

5A

2013
  • Dieldrin
    • Source Unknown

25335 Acres

1998

5A

2013
    This listing was made by USEPA.
  • Dioxin compounds (including 2,3,7,8-TCDD)
    • Source Unknown

25335 Acres

1998

5A

2019
    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.
  • Furan Compounds
    • Source Unknown

25335 Acres

1998

5A

2019
    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.
  • Invasive Species
    • Source Unknown

25335 Acres

2006

5A

2019
    Disrupt natural benthos; change pollutant availability in food chain; disrupt food availability to native species.
  • Mercury
    • Source Unknown

25335 Acres

1990

5B

2008
    Current data indicate fish consumption and wildlife consumption impacted uses. 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)
    • Source Unknown

25335 Acres

1998

5B

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

25335 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
    • Source Unknown

25335 Acres

1990

5B

2016


2

Suisun Creek

River & Stream

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

21 Miles

2014

5A

2021
  • Temperature, water
    • Source Unknown

21 Miles

2010

5A

2021


2

Suisun Marsh Wetlands

Wetland, Tidal

20723000  /  18050001
  • Mercury
    • Historic Land Management Activities

66339 Acres

2010

5B

2018
  • Nutrients
    • Source Unknown

66339 Acres

1996

5A

2019
    Additional monitoring and assessment needed.
  • Organic Enrichment/Low Dissolved Oxygen
    • Historic Land Management Activities

66339 Acres

1996

5B

2018
  • Salinity/TDS/Chlorides
    • Source Unknown

66339 Acres

1996

5A

2013
    Additional monitoring and assessment needed.


2

Tomales Bay

Bay & Harbor

20114033  /  18050005
  • Mercury
    • Source Unknown

8545 Acres

1992

5B

2012
    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.
  • Nutrients
    • Source Unknown

8545 Acres

1992

5A

2029
    TMDL will be developed as part of ongoing watershed management effort.
  • Pathogens
    • Source Unknown

8545 Acres

1992

5B

2007
  • Sedimentation/Siltation
    • Source Unknown

8545 Acres

1992

5A

2013
    TMDL will be developed as part of ongoing watershed management effort.


2

Upper San Leandro Reservoir

Lake & Reservoir

2204.200101,2204.200103  /  18050004
  • Mercury
    • Source Unknown

758 Acres

2014

5A

2029


2

Walker Creek

River & Stream

2201.110000,2201.120101,2201.120103,2201.120201,2201.120202,2201.120303  /  18050005
  • Mercury
    • Mine Tailings

16 Miles

1992

5B

2008
  • Nutrients
    • Source Unknown

16 Miles

1992

5A

2022
    Tributary to Tomales Bay. TMDLs will be developed as part of evolving watershed management effort. Additional monitoring and assessment needed.
  • Pathogens
    • Source Unknown

16 Miles

2006

5B

2007
  • Sedimentation/Siltation
    • Source Unknown

16 Miles

1992

5A

2013
    Tributary to Tomales Bay. TMDLs will be developed as part of evolving watershed management effort. Additional monitoring and assessment needed.


3

Alamo Creek

River & Stream

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

7.8 Miles

2002

5B

2013
  • Toxicity
    • Source Unknown

7.8 Miles

2014

5A

2023


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

13 Miles

2010

5B

2015
  • Fecal Coliform
    • Grazing-Related Sources
    • Illegal dumping
    • Transient encampments
    • Urban Runoff/Storm Sewers

13 Miles

2002

5B

2012
  • Nitrate
    • Agriculture

13 Miles

2002

5B

2015
  • Sodium
    • Source Unknown

13 Miles

2010

5A

2027
  • Toxicity
    • Source Unknown

13 Miles

2014

5A

2018
  • Turbidity
    • Source Unknown

13 Miles

2014

5A

2023


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

11 Miles

2010

5B

2015
  • Toxicity
    • Agriculture

11 Miles

2014

5A

2023
    Although the water toxicity impairment is addressed by the Lower Salinas River Chlorpyrifos and Diazinon TMDL which has been approved by the USEPA, the sediment toxicity has not yet been addressed in a TMDL approved by USEPA.
  • Turbidity
    • Source Unknown

11 Miles

2014

5A

2023


3

Aptos Creek

River & Stream

3304.130201,3304.130203,3304.130204  /  18060001
  • Indicator Bacteria
    • Collection System Failure
    • Natural Sources
    • Other Urban Runoff
    • Urban Runoff/Storm Sewers

8.6 Miles

2014

5B

2011
    Impaired length for is between Bridge Creek confluence and the Aptos Creek mouth (approximately 5 miles).
  • Sedimentation/Siltation
    • Source Unknown

8.6 Miles

1990

5A

2027


3

Arana Gulch

River & Stream

3304.120501,3304.120503  /  18060001
  • Chlorpyrifos
    • Source Unknown

4.8 Miles

2010

5B

2015
  • Escherichia coli (E. coli)
    • Source Unknown

4.8 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

4.8 Miles

2010

5A

2027


3

Arroyo Burro Creek

River & Stream

3315.320003  /  18060013
  • Escherichia coli (E. coli)
    • Source Unknown

6.3 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

6.3 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

6.3 Miles

2014

5A

2027


3

Arroyo De La Cruz Lagoon

River & Stream

3310.120003  / 
  • Escherichia coli (E. coli)
    • Grazing-Related Sources
    • Natural Sources

0.51 Miles

2014

5B

2011
  • Oxygen, Dissolved
    • Source Unknown

0.51 Miles

2014

5A

2027


3

Arroyo Grande Creek (below Lopez Lake)

River & Stream

3310.310104,3310.310203,3310.310205,3310.310206  /  18060006
  • Benthic Community Effects
    • Source Unknown

13 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

13 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

13 Miles

2010

5A

2027
  • Nickel
    • Source Unknown

13 Miles

2010

5A

2027
  • Nitrate
    • Source Unknown

13 Miles

2010

5A

2023
  • Toxicity
    • Source Unknown

13 Miles

2014

5A

2023


3

Arroyo Paredon

River & Stream

3315.340003,3315.340004  /  18060013
  • Boron
    • Source Unknown

5.3 Miles

2006

5A

2027
  • Chloride
    • Source Unknown

5.3 Miles

2010

5A

2027
  • Diazinon
    • Agriculture

5.3 Miles

2010

5B

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

5.3 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

5.3 Miles

2010

5A

2027
  • Nitrate
    • Agriculture

5.3 Miles

2006

5B

2014
    The impaired reach extends from the creek mouth to Foothill Road.
  • Sodium
    • Source Unknown

5.3 Miles

2010

5A

2027
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

5.3 Miles

2014

5B

2013


3

Arroyo Seco River

River & Stream

3309.300000,3309.600301,3309.600302,3309.600303,3309.600306,3309.600307,3309.600308,3309.600403  /  18060005
  • Fecal Coliform
    • Source Unknown

43 Miles

2010

5A

2027
    Impaired reach is from the confluence with Tassajara Creek downstream to the confluence with the Salinas River.
  • Temperature, water
    • Source Unknown

43 Miles

2010

5A

2023
    Impaired reach is from the confluence with Tassajara Creek downstream to the confluence with the Salinas River.


3

Atascadero Creek (San Luis Obispo County)

River & Stream

3309.811404  /  18060005
  • Escherichia coli (E. coli)
    • Source Unknown

5.5 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

5.5 Miles

2002

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

5.5 Miles

2014

5A

2027


3

Atascadero Creek (Santa Barbara County)

River & Stream

3315.310001,3315.310003  /  18060013
  • Benthic Community Effects
    • Source Unknown

5.7 Miles

2014

5A

2027
  • Chloride
    • Source Unknown

5.7 Miles

2010

5A

2027
  • Enterococcus
    • Source Unknown

5.7 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

5.7 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

5.7 Miles

2010

5A

2027
  • Nitrate
    • Source Unknown

5.7 Miles

2010

5A

2023
  • Oxygen, Dissolved
    • Source Unknown

5.7 Miles

2014

5A

2027
  • Sodium
    • Source Unknown

5.7 Miles

2010

5A

2027
  • Temperature, water
    • Source Unknown

5.7 Miles

2010

5A

2023
  • Toxicity
    • Source Unknown

5.7 Miles

2014

5A

2023
  • pH
    • Source Unknown

5.7 Miles

2010

5A

2027


3

Beach Road Ditch

River & Stream

3305.100301  /  18060002
  • Nitrate
    • Source Unknown

3.4 Miles

2010

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

3.4 Miles

2014

5A

2018
  • Turbidity
    • Source Unknown

3.4 Miles

2010

5A

2023
  • pH
    • Source Unknown

3.4 Miles

2010

5A

2027


3

Bell Creek (Santa Barbara Co)

River & Stream

3315.100103  /  18060013
  • Fecal Coliform
    • Source Unknown

1 Miles

2010

5A

2027
  • Nitrate
    • Agriculture

1 Miles

2006

5B

2013
  • Toxicity
    • Source Unknown

1 Miles

2014

5A

2023


3

Bennett Slough

River & Stream

3306.000004  /  18060011
  • Chlorophyll-a
    • Source Unknown

1.9 Miles

2010

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

1.9 Miles

2014

5A

2018
  • Turbidity
    • Source Unknown

1.9 Miles

2010

5A

2023
  • pH
    • Source Unknown

1.9 Miles

2010

5A

2018


3

Big Creek (Big Sur Coast)

River & Stream

3308.000501,3308.000503  /  18060006
  • pH
    • Natural Sources

6.6 Miles

2010

5A

2027


3

Blanco Drain

River & Stream

3309.110000  /  18060011
  • Chlorpyrifos
    • Agriculture

9.2 Miles

2010

5B

2011
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

9.2 Miles

2014

5A

2027
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

9.2 Miles

2014

5A

2027
  • Diazinon
    • Agriculture

9.2 Miles

2010

5B

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

9.2 Miles

2010

5B

2015
  • Toxicity
    • Agriculture

9.2 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

9.2 Miles

2010

5A

2023


3

Blosser Channel

River & Stream

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

1.7 Miles

2014

5B

2016
  • Chlorpyrifos
    • Agriculture

1.7 Miles

2010

5B

2015
  • Diazinon
    • Agriculture

1.7 Miles

2010

5B

2016
  • Fecal Coliform
    • Collection System Failure
    • Urban Runoff/Storm Sewers

1.7 Miles

1800

5B

2013
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

1.7 Miles

2010

5B

2016
  • Temperature, water
    • Source Unknown

1.7 Miles

2010

5A

2023
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

1.7 Miles

2014

5B

2015
  • Turbidity
    • Source Unknown

1.7 Miles

2010

5A

2023
  • pH
    • Source Unknown

1.7 Miles

2010

5A

2027


3

Bradley Canyon Creek

River & Stream

31210030  /  18060008
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Groundwater Loadings
    • Natural Sources

17 Miles

2014

5B

2016
  • Chlorpyrifos
    • Agriculture

17 Miles

2014

5B

2015
  • Fecal Coliform
    • Domestic Animals/Livestock

17 Miles

2002

5B

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

17 Miles

2006

5B

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

17 Miles

2014

5B

2016
  • Temperature, water
    • Source Unknown

17 Miles

2010

5A

2023
  • Toxicity
    • Agriculture

17 Miles

2014

5B

2015
  • Turbidity
    • Source Unknown

17 Miles

2010

5A

2023
  • pH
    • Source Unknown

17 Miles

2010

5A

2027


3

Bradley Channel

River & Stream

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

3.1 Miles

2014

5B

2016
  • Chlorpyrifos
    • Agriculture

3.1 Miles

2010

5B

2015
  • Diazinon
    • Agriculture

3.1 Miles

2010

5B

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

3.1 Miles

2014

5B

2013
  • Fecal Coliform
    • Collection System Failure
    • Urban Runoff/Storm Sewers

3.1 Miles

2002

5B

2013
  • Malathion
    • Agriculture

3.1 Miles

2014

5B

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

3.1 Miles

2006

5B

2016
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2014

5B

2015
  • Turbidity
    • Source Unknown

3.1 Miles

2010

5A

2023
  • pH
    • Source Unknown

3.1 Miles

2010

5A

2027


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
    • Source Unknown

3169 Acres

2014

5A

2018


3

Camp Evers Creek

River & Stream

3304.120504  /  18060001
  • Escherichia coli (E. coli)
    • Source Unknown

0.81 Miles

2014

5A

2027
  • pH
    • Source Unknown

0.81 Miles

2010

5A

2027


3

Canada De La Gaviota

River & Stream

3315.100301,3315.100302,3315.100403  /  18060013
  • Boron
    • Source Unknown

7.1 Miles

2006

5A

2027
  • Chloride
    • Source Unknown

7.1 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

7.1 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

7.1 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

7.1 Miles

2010

5A

2027


3

Canada Del Capitan

River & Stream

3315.100204  /  18060013
  • Toxicity
    • Source Unknown

5.8 Miles

2014

5A

2027


3

Canada Del Refugio

River & Stream

3315.100202  /  18060013
  • Chloride
    • Source Unknown

6.9 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

6.9 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

6.9 Miles

2010

5A

2027


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

3.2 Miles

2010

5B

2010
  • Nitrate
    • Source Unknown

3.2 Miles

2010

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

3.2 Miles

2014

5A

2018
  • Turbidity
    • Source Unknown

3.2 Miles

2010

5A

2023


3

Carneros Creek (Monterey County)

River & Stream

3306.000001,3306.000002,3306.000004,3306.000006  /  18060011
  • Ammonia
    • Source Unknown

12 Miles

2014

5A

2018
  • Chlorophyll-a
    • Source Unknown

12 Miles

2010

5A

2018
  • Fecal Coliform
    • Source Unknown

12 Miles

2010

5A

2027
  • Nitrate
    • Source Unknown

12 Miles

2010

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

12 Miles

2014

5A

2018
  • Turbidity
    • Source Unknown

12 Miles

2010

5A

2023
  • pH
    • Source Unknown

12 Miles

2010

5A

2018


3

Carneros Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Enterococcus
    • Source Unknown

6.1 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

6.1 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

6.1 Miles

2010

5A

2027
  • Nitrate
    • Agriculture

6.1 Miles

2010

5B

2014
  • Specific Conductivity
    • Source Unknown

6.1 Miles

2014

5A

2027
  • pH
    • Source Unknown

6.1 Miles

2010

5A

2027


3

Carpinteria Creek (below Gobernador Creek)

River & Stream

3315.340001,3315.340003  / 
  • Chloride
    • Source Unknown

2.3 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

2.3 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

2.3 Miles

2014

5A

2027
  • Nitrate
    • Source Unknown

2.3 Miles

2014

5A

2023
  • Oxygen, Dissolved
    • Source Unknown

2.3 Miles

2014

5A

2027
  • Sodium
    • Source Unknown

2.3 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

2.3 Miles

2014

5A

2027


3

Carpinteria Marsh (El Estero)

Estuary

3315.340003  /  18060013
  • Nutrients
    • Source Unknown

201 Acres

1994

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

201 Acres

2014

5A

2018
  • Priority Organics
    • Source Unknown

201 Acres

1992

5A

2027


3

Casmalia Canyon Creek

River & Stream

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

5 Miles

2006

5A

2027


3

Chesbro Reservoir

Lake & Reservoir

3305.200104,3305.300200  /  18060002
  • Mercury
    • Source Unknown

235 Acres

2010

5A

2018


3

Cholame Creek

River & Stream

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

8.8 Miles

2002

5B

2014
  • Chloride
    • Source Unknown

8.8 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Grazing-Related Sources
    • Natural Sources

8.8 Miles

2010

5B

2011
  • Fecal Coliform
    • Grazing-Related Sources
    • Natural Sources

8.8 Miles

2002

5B

2011
  • Oxygen, Dissolved
    • Source Unknown

8.8 Miles

2014

5A

2027
    The impaired reach length is 1 mile and centered on Bitterwater Road.
  • Sodium
    • Source Unknown

8.8 Miles

2010

5A

2027
  • Specific Conductivity
    • Source Unknown

8.8 Miles

2014

5A

2027


3

Chorro Creek

River & Stream

3310.220001,3310.220002,3310.220003,3310.270000  /  18060006
  • Benthic Community Effects
    • Source Unknown

15 Miles

2014

5A

2027
  • Chloride
    • Source Unknown

15 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

15 Miles

2010

5B

2004
  • Fecal Coliform
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

15 Miles

2002

5B

2004
  • 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
    The impaired segment is from the mouth or Chorro Creek (at Morro Bay) to the monitoring station located near Highway 1 bridge (310CHO), approximately 9 miles.
  • 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
    • Source Unknown

15 Miles

2014

5A

2023


3

Chualar Creek

River & Stream

30919000  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

14 Miles

2014

5B

2015
  • Chlorpyrifos
    • Agriculture

14 Miles

2010

5B

2011
  • Diazinon
    • Agriculture

14 Miles

2010

5B

2011
  • Dimethoate
    • Source Unknown

14 Miles

2014

5A

2027
  • 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
  • Malathion
    • Source Unknown

14 Miles

2014

5A

2027
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

14 Miles

2010

5B

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

14 Miles

2014

5B

2015
  • Toxicity
    • Agriculture

14 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

14 Miles

2010

5A

2018
  • pH
    • Source Unknown

14 Miles

2010

5A

2027


3

Chualar Creek, South Branch

River & Stream

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

3.7 Miles

2014

5B

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

3.7 Miles

2010

5B

2015
  • Temperature, water
    • Source Unknown

3.7 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

3.7 Miles

2010

5A

2023
  • pH
    • Source Unknown

3.7 Miles

2010

5A

2027


3

Chumash Creek

River & Stream

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

2.1 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

2.1 Miles

2002

5A

2027
    For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.
  • Oxygen, Dissolved
    • Source Unknown

2.1 Miles

2018

5A

2027


3

Cieneguitas Creek

River & Stream

3315.310001,3315.310003  /  18060013
  • Enterococcus
    • Source Unknown

3.2 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

3.2 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

3.2 Miles

2014

5A

2027
  • Temperature, water
    • Source Unknown

3.2 Miles

2010

5A

2023


3

Corcoran Lagoon

Wetland, Freshwater

3304.130104  /  18060001
  • Total Coliform
    • Source Unknown

12 Acres

2010

5A

2027
  • pH
    • Source Unknown

12 Acres

2010

5A

2027


3

Corralitos Creek

River & Stream

3305.100102,3305.100301  /  18060002
  • Escherichia coli (E. coli)
    • Agriculture-animal
    • Domestic Pet Waste
    • Municipal Point Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments

14 Miles

2010

5B

2012
  • Fecal Coliform
    • Agriculture-animal
    • Domestic Pet Waste
    • Municipal Point Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments

14 Miles

2002

5B

2012
  • Turbidity
    • Source Unknown

14 Miles

2010

5A

2023
    The impaired length is between Browns Valley Road and the confluence with Salsipuedes Creek.
  • pH
    • Source Unknown

14 Miles

2010

5A

2027


3

Cuyama River (above Twitchell Reservoir)

River & Stream

31230060  /  18060007
  • Boron
    • Source Unknown

80 Miles

2010

5A

2027
    The impaired length is between Twitchell Reservoir and the Highway 33 Bridge
  • Chloride
    • Source Unknown

80 Miles

2010

5A

2027
    The impaired length is between Twitchell Reservoir and the Highway 33 Bridge.
  • Fecal Coliform
    • Grazing-Related Sources

80 Miles

2010

5B

2013
    The impaired length is between Twitchel Reservoir and the Highway 33 Bridge.
  • Sodium
    • Source Unknown

80 Miles

2010

5A

2027
    Impaired reach is from Twitchell Reservoir to Highway 33 bridge.
  • Specific Conductivity
    • Source Unknown

80 Miles

2014

5A

2027
  • Turbidity
    • Source Unknown

80 Miles

2010

5A

2023
  • pH
    • Source Unknown

80 Miles

2010

5A

2027


3

Dairy Creek

River & Stream

3310.220001,3310.220003  /  18060006
  • Enterococcus
    • Source Unknown

4.7 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

4.7 Miles

2010

5A

2027
    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.
  • Fecal Coliform
    • Domestic Pet Waste
    • Grazing-Related Sources
    • Natural Sources
    • Transient encampments

4.7 Miles

2002

5B

2004
    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

2027


3

Devereux Creek

River & Stream

3315.310003  /  18060013
  • Fecal Coliform
    • Source Unknown

1.1 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

1.1 Miles

2014

5A

2027


3

Dos Pueblos Canyon Creek

River & Stream

3315.100101  /  18060013
  • Sodium
    • Source Unknown

7.1 Miles

2010

5A

2027


3

Elkhorn Slough

Estuary

30600014  /  18060011
  • Nitrate
    • Source Unknown

2034 Acres

2014

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

2034 Acres

2014

5A

2018
  • Pesticides
    • Source Unknown

2034 Acres

1990

5A

2027
  • Sedimentation/Siltation
    • Source Unknown

2034 Acres

1996

5A

2027
  • Total Coliform
    • Source Unknown

2034 Acres

2010

5A

2027
  • pH
    • Source Unknown

2034 Acres

2010

5A

2018


3

Espinosa Slough

River & Stream

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

0.99 Miles

2014

5B

2015
  • Diazinon
    • Agriculture

0.99 Miles

2010

5B

2011
  • Malathion
    • Source Unknown

0.99 Miles

2014

5A

2027
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

0.99 Miles

2010

5B

2015
  • Pesticides
    • Source Unknown

0.99 Miles

1996

5A

2027
  • Priority Organics
    • Source Unknown

0.99 Miles

1996

5A

2027
  • Toxicity
    • Agriculture

0.99 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

0.99 Miles

2010

5A

2023
  • pH
    • Source Unknown

0.99 Miles

2010

5A

2027


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

28 Miles

2010

5B

2014
  • Chloride
    • Source Unknown

28 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

28 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

28 Miles

2010

5A

2027
  • Toxicity
    • Source Unknown

28 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

28 Miles

2010

5A

2023
  • pH
    • Source Unknown

28 Miles

2010

5A

2027


3

Franklin Creek (Santa Barbara County)

River & Stream

3315.340003,3315.340004  /  18060013
  • Escherichia coli (E. coli)
    • Source Unknown

2.9 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

2.9 Miles

2010

5A

2027
  • Nitrate
    • Source Unknown

2.9 Miles

2006

5A

2018
  • Sodium
    • Source Unknown

2.9 Miles

2010

5A

2027
  • Toxicity
    • Source Unknown

2.9 Miles

2014

5A

2023
  • pH
    • Source Unknown

2.9 Miles

2010

5A

2027


3

Furlong Creek

River & Stream

3305.300200,3305.400304  /  18060002
  • Escherichia coli (E. coli)
    • Source Unknown

8.5 Miles

2010

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

8.5 Miles

2010

5B

2010
  • Nitrate
    • Source Unknown

8.5 Miles

2010

5A

2018
  • Turbidity
    • Source Unknown

8.5 Miles

2010

5A

2023


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

9.5 Miles

2002

5B

2012
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

9.5 Miles

2006

5B

2015
  • Toxicity
    • Agriculture

9.5 Miles

2014

5B

2012
  • Turbidity
    • Source Unknown

9.5 Miles

2010

5A

2023
  • pH
    • Source Unknown

9.5 Miles

2010

5A

2027


3

Glen Annie Canyon Creek

River & Stream

3315.310002,3315.310003  / 
  • Enterococcus
    • Source Unknown

4.8 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

4.8 Miles

2014

5A

2027
  • Nitrate
    • Agriculture

4.8 Miles

2014

5B

2014
  • Toxicity
    • Source Unknown

4.8 Miles

2014

5A

2023


3

Goleta Slough/Estuary

Estuary

3315.310003  /  18060013
  • Indicator Bacteria
    • Natural Sources
    • Source Unknown
    • Urban Runoff/Storm Sewers

167 Acres

2014

5A

2027
  • Priority Organics
    • Source Unknown

167 Acres

1990

5A

2027


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
  • Malathion
    • Agriculture

3.9 Miles

2014

5B

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

3.9 Miles

2010

5B

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

3.9 Miles

2014

5B

2016
  • Temperature, water
    • Source Unknown

3.9 Miles

2010

5A

2023
  • Toxicity
    • Agriculture

3.9 Miles

2014

5B

2015
  • Turbidity
    • Source Unknown

3.9 Miles

2010

5A

2023


3

Harkins Slough

River & Stream

3305.100301,3305.100303  /  18060002
  • Chlorophyll-a
    • Source Unknown

7.3 Miles

2010

5A

2018
  • Indicator Bacteria
    • Source Unknown

7.3 Miles

2014

5B

2007
  • Oxygen, Dissolved
    • Source Unknown

7.3 Miles

2014

5A

2018


3

Las Tablas Creek

River & Stream

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

5.5 Miles

1990

5A

2027


3

Las Tablas Creek, North Fork

River & Stream

3309.811205  /  18060005
  • Metals
    • Inactive Mining

6.9 Miles

1990

5A

2027


3

Las Tablas Creek, South Fork

River & Stream

3309.811205  /  18060006
  • Metals
    • Inactive Mining

4.8 Miles

1990

5A

2027


3

Little Oso Flaco Creek

River & Stream

3312.100300  /  18060008
  • Fecal Coliform
    • Domestic Animals/Livestock

2.2 Miles

2010

5B

2013
  • Nitrate
    • Domestic Animals/Livestock
    • Natural Sources

2.2 Miles

2010

5B

2016
  • Toxicity
    • Agriculture

2.2 Miles

2014

5B

2015
  • Turbidity
    • Source Unknown

2.2 Miles

2010

5A

2023


3

Llagas Creek (above Chesbro Reservoir)

River & Stream

3305.200103,3305.200104  /  18060002
  • Temperature, water
    • Source Unknown

9.4 Miles

2010

5A

2023
  • pH
    • Source Unknown

9.4 Miles

2010

5A

2027


3

Llagas Creek (below Chesbro Reservoir)

River & Stream

30530020  /  18060002
  • Chloride
    • Source Unknown

16 Miles

2002

5A

2027
    Impaired section for Chlorides is located downstream of confluence with Miller Slough (approximately 1 mile of stream near Southside Drive).
  • Chlorpyrifos
    • Agriculture

16 Miles

2010

5B

2013
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

16 Miles

2010

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

16 Miles

2002

5B

2010
    Impaired section for Fecal Coliform is located between the confluence with Church Creek and the confluence with Pajaro River (approximately 9.5 miles of stream length).
  • Nitrate
    • Agriculture

16 Miles

2014

5B

2006
    Nutrients Medium 16 Impaired section for Nutrients is located between the confluence with Church Creek and the confluence with Pajaro River (approximately 9.5 miles of stream length).
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

16 Miles

2014

5A

2018
  • Sedimentation/Siltation
    • Agriculture-grazing
    • Habitat Modification
    • Hydromodification
    • Irrigated Crop Production
    • Land Development
    • Resource Extraction
    • Silviculture

16 Miles

1996

5B

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

16 Miles

2002

5A

2027
    Impaired section for Sodium is located downstream of confluence with Miller Slough (approximately 1 mile of stream near Southside Drive).
  • Specific Conductivity
    • Source Unknown

16 Miles

2014

5A

2027
  • Total Dissolved Solids
    • Source Unknown

16 Miles

2002

5A

2027
    Impaired section for Total Dissolved Solids is located between the confluence with Church Creek and the confluence with Pajaro River (approximately 9.5 miles of stream length).
  • Turbidity
    • Source Unknown

16 Miles

2010

5A

2023


3

Lockhart Gulch

River & Stream

3304.120401  /  18060001
  • Oxygen, Dissolved
    • Source Unknown

2.8 Miles

2014

5A

2027
  • pH
    • Source Unknown

2.8 Miles

2010

5A

2027


3

Los Berros Creek

River & Stream

3310.310202,3310.310203  /  18060008
  • Chloride
    • Source Unknown

14 Miles

2010

5A

2027
  • Nitrate
    • Atmospheric Deposition
    • Crop-Related Sources
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff--Non-industrial Permitted

14 Miles

2010

5B

2012
  • Sodium
    • Source Unknown

14 Miles

2010

5A

2027


3

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

River & Stream

3310.230001  / 
  • Fecal Coliform
    • Domestic Pet Waste
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments
    • Urban Runoff/Storm Sewers

3.8 Miles

2014

5B

2004
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

3.8 Miles

2014

5B

2005
  • Oxygen, Dissolved
    • Source Unknown

3.8 Miles

2014

5A

2027
    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
    • Source Unknown

6.1 Miles

2014

5A

2027


3

Los Osos Creek Estuary

River & Stream

3310.230001,3310.230002,3310.230003  / 
  • Fecal Coliform
    • Domestic Pet Waste
    • Grazing-Related Sources
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments
    • Urban Runoff/Storm Sewers

0.99 Miles

2014

5B

2004
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

0.99 Miles

2014

5B

2005
  • Oxygen, Dissolved
    • Source Unknown

0.99 Miles

2014

5A

2027
    This listing was made by USEPA.
  • Turbidity
    • Source Unknown

0.99 Miles

2014

5A

2023


3

Love Creek

River & Stream

3304.120201  /  18060001
  • Sedimentation/Siltation
    • Source Unknown

3.8 Miles

2002

5A

2027


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
  • Chlorpyrifos
    • Agriculture

3.3 Miles

2010

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
  • Fecal Coliform
    • Collection System Failure
    • Urban Runoff/Storm Sewers

3.3 Miles

2010

5B

2013
  • Malathion
    • Agriculture

3.3 Miles

2014

5B

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

3.3 Miles

2002

5B

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

3.3 Miles

2014

5B

2016
  • Temperature, water
    • Source Unknown

3.3 Miles

2010

5A

2023
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B

2016
  • Turbidity
    • Source Unknown

3.3 Miles

2010

5A

2023


3

Majors Creek (Monterey County)

River & Stream

3307.000502,3309.500402  /  18060012
  • Copper
    • Source Unknown
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Natural Sources
    • Source Unknown
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

2027
  • Lead
    • Source Unknown
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

2027
  • Zinc
    • Source Unknown
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

2027


3

Maria Ygnacio Creek

River & Stream

3315.310001,3315.310003  /  18060013
  • Enterococcus
    • Source Unknown

7.2 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

7.2 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

7.2 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

7.2 Miles

2010

5A

2027
  • Turbidity
    • Source Unknown

7.2 Miles

2010

5A

2023
  • pH
    • Source Unknown

7.2 Miles

2010

5A

2027


3

McEnery Spring

River & Stream

30412040  /  18060001
  • pH
    • Source Unknown

0.07 Miles

2010

5A

2027


3

McGowan Ditch

River & Stream

3305.100301  /  18060002
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

2.5 Miles

2014

5A

2027
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

2.5 Miles

2014

5A

2027
  • Malathion
    • Source Unknown

2.5 Miles

2014

5A

2027
  • Nitrate
    • Source Unknown

2.5 Miles

2010

5A

2018
  • Toxicity
    • Source Unknown

2.5 Miles

2014

5A

2023


3

Merrit Ditch

River & Stream

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

0.45 Miles

2014

5B

2015
  • Diazinon
    • Agriculture

0.45 Miles

2010

5B

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

0.45 Miles

2010

5B

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

0.45 Miles

2014

5B

2015
  • Toxicity
    • Agriculture

0.45 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

0.45 Miles

2010

5A

2018
  • pH
    • Source Unknown

0.45 Miles

2010

5A

2027


3

Millers Canal

River & Stream

30530020  /  18060002
  • Chlorophyll-a
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.1 Miles

2010

5A

2018
  • Escherichia coli (E. coli)
    • Source Unknown

2.1 Miles

2010

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

2.1 Miles

2010

5B

2010
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.1 Miles

2010

5B

2006
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.1 Miles

2014

5A

2018
  • Temperature, water
    • Source Unknown

2.1 Miles

2010

5A

2023
  • Toxicity
    • Source Unknown

2.1 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

2.1 Miles

2010

5A

2023
  • pH
    • Source Unknown

2.1 Miles

2010

5A

2027


3

Mission Creek (Santa Barbara County)

River & Stream

3315.320001  /  18060013
  • Escherichia coli (E. coli)
    • Source Unknown

8.7 Miles

1992

5A

2027
  • Fecal Coliform
    • Source Unknown

8.7 Miles

1992

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

8.7 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

8.7 Miles

2014

5A

2023


3

Monterey Harbor

Bay & Harbor

30950042  /  18060012
  • Arsenic
    • Source Unknown

76 Acres

2010

5A

2027
  • Copper
    • Source Unknown

76 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

76 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

76 Acres

2014

5A

2027
  • Toxicity
    • Source Unknown

76 Acres

2014

5A

2023


3

Moore Creek

River & Stream

30411031  /  18060001
  • Escherichia coli (E. coli)
    • Source Unknown

1.5 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

1.5 Miles

2014

5A

2027
  • Specific Conductivity
    • Source Unknown

1.5 Miles

2014

5A

2027
  • pH
    • Source Unknown

1.5 Miles

2010

5A

2027


3

Moro Cojo Slough

Estuary

30913011  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

62 Acres

2014

5B

2015
  • Escherichia coli (E. coli)
    • Source Unknown

62 Acres

2010

5A

2027
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

62 Acres

2014

5B

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

62 Acres

1800

5B

2015
  • Pesticides
    • Source Unknown

62 Acres

2002

5A

2027
  • Sedimentation/Siltation
    • Source Unknown

62 Acres

2002

5A

2027
  • Total Coliform
    • Source Unknown

62 Acres

2010

5A

2027
  • Toxicity
    • Source Unknown

62 Acres

2014

5A

2023
  • Turbidity
    • Source Unknown

62 Acres

2010

5A

2023
  • pH
    • Source Unknown

62 Acres

2010

5A

2027


3

Morro Bay

Bay & Harbor

31022012  /  18060006
  • Arsenic
    • Source Unknown

1922 Acres

2018

5A

2027
  • Indicator Bacteria
    • Boat Discharges/Vessel Wastes
    • Domestic Pet Waste
    • Groundwater Loadings
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Other
    • Transient encampments
    • Urban Runoff/Storm Sewers

1922 Acres

2014

5B

2004
  • Oxygen, Dissolved
    • Source Unknown

1922 Acres

2006

5A

2027
  • Sedimentation/Siltation
    • Agriculture
    • Erosion/Siltation
    • Grazing-Related Sources
    • Habitat Modification
    • Highway/Road/Bridge Construction
    • Land Development

1922 Acres

1994

5B

2004


3

Morro Creek

River & Stream

3309.811404,3310.210000  /  18060006
  • Fecal Coliform
    • Source Unknown

14 Miles

2010

5A

2027


3

Moss Landing Harbor

Bay & Harbor

30600014  /  18060011
  • Arsenic
    • Source Unknown

79 Acres

2010

5A

2027
  • Chlorpyrifos
    • Agriculture

79 Acres

2010

5B

2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

79 Acres

2014

5A

2027
  • Diazinon
    • Agriculture

79 Acres

2010

5B

2011
  • Dieldrin
    • Source Unknown

79 Acres

2010

5A

2027
  • Indicator Bacteria
    • Source Unknown

79 Acres

2014

5A

2027
  • Nickel
    • Source Unknown

79 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

79 Acres

2014

5A

2018
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

79 Acres

2014

5A

2027
  • Sedimentation/Siltation
    • Source Unknown

79 Acres

1996

5A

2027
  • Toxicity
    • Source Unknown

79 Acres

2014

5A

2023
  • pH
    • Source Unknown

79 Acres

2010

5A

2027


3

Mountain Charlie Gulch

River & Stream

3304.120402  /  18060001
  • Sedimentation/Siltation
    • Source Unknown

4 Miles

2002

5A

2027


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
    • Source Unknown

5495 Acres

1800

5A

2018


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

7.2 Miles

2006

5B

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

7.2 Miles

2014

5B

2015
  • Temperature, water
    • Source Unknown

7.2 Miles

2010

5A

2023
  • Toxicity
    • Agriculture

7.2 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

7.2 Miles

2010

5A

2023


3

Newell Creek (Lower)

River & Stream

3304.120202,3304.120600  /  18060001
  • pH
    • Source Unknown

1.8 Miles

2010

5A

2027


3

Newell Creek (Upper)

River & Stream

3304.120600  /  18060001
  • Sedimentation/Siltation
    • Source Unknown

3.3 Miles

2002

5A

2027


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
  • Temperature, water
    • Source Unknown

9.5 Miles

2010

5A

2023


3

Old Creek (above Whale Rock Reservoir)

River & Stream

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

7.8 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

7.8 Miles

2010

5A

2027


3

Old Salinas River

River & Stream

30911010  /  18060011
  • Chlorophyll-a
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.8 Miles

2010

5B

2015
  • Chlorpyrifos
    • Agriculture

3.8 Miles

2010

5B

2011
  • Diazinon
    • Agriculture

3.8 Miles

2010

5B

2011
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Domestic Pet Waste
    • Illegal dumping
    • Urban Runoff/Storm Sewers

3.8 Miles

2010

5B

2012
  • Fecal Coliform
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

3.8 Miles

2010

5B

2012
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.8 Miles

2010

5B

2015
  • Oxygen, Dissolved
    • Natural Sources

3.8 Miles

2014

5B

2015
  • Toxicity
    • Agriculture

3.8 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

3.8 Miles

2010

5A

2023
  • pH
    • Source Unknown

3.8 Miles

2010

5A

2027


3

Old Salinas River Estuary

Estuary

30911010  /  18060011
  • Nutrients
    • Source Unknown

16 Acres

1992

5A

2018
  • Pesticides
    • Source Unknown

16 Acres

1990

5A

2023


3

Orcutt Creek

River & Stream

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

10 Miles

2014

5B

2016
  • Boron
    • Source Unknown

10 Miles

2006

5A

2027
    This listing was made by USEPA.
  • Carbaryl
    • Source Unknown

10 Miles

2014

5A

2027
  • Chloride
    • Source Unknown

10 Miles

2010

5A

2027
  • Chlorpyrifos
    • Agriculture

10 Miles

2006

5B

2015
  • Cyfluthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

10 Miles

2014

5B

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

10 Miles

2014

5B

2015
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture

10 Miles

2018

5B

2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture

10 Miles

2018

5B

2015
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

10 Miles

2006

5B

2015
  • Diazinon
    • Agriculture

10 Miles

2010

5B

2015
  • Dieldrin
    • Agriculture

10 Miles

2006

5B

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

10 Miles

2014

5B

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

10 Miles

2002

5B

2013
  • Malathion
    • Agriculture

10 Miles

2014

5B

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

10 Miles

2002

5B

2016
  • Sodium
    • Source Unknown

10 Miles

2010

5A

2027
  • Specific Conductivity
    • Source Unknown

10 Miles

2014

5A

2027
  • Temperature, water
    • Source Unknown

10 Miles

2010

5A

2023
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

10 Miles

2014

5B

2015
  • Turbidity
    • Source Unknown

10 Miles

2010

5A

2023


3

Oso Flaco Creek

River & Stream

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

5.2 Miles

2014

5B

2016
  • Chloride
    • Source Unknown

5.2 Miles

2010

5A

2027
  • Chlorpyrifos
    • Agriculture

5.2 Miles

2010

5B

2015
  • Fecal Coliform
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

5.2 Miles

2002

5B

2013
  • Malathion
    • Agriculture

5.2 Miles

2014

5B

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

5.2 Miles

2002

5B

2016
  • Sodium
    • Source Unknown

5.2 Miles

2010

5A

2027
  • Toxicity
    • Agriculture

5.2 Miles

2014

5B

2015
  • Turbidity
    • Source Unknown

5.2 Miles

2010

5A

2023


3

Oso Flaco Lake

Lake & Reservoir

3312.100300  /  18060008
  • Chlorophyll-a
    • Source Unknown

46 Acres

2010

5A

2023
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

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

46 Acres

2010

5B

2013
  • Mercury
    • Source Unknown

46 Acres

2014

5A

2027
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

46 Acres

2002

5B

2016
  • Oxygen, Dissolved
    • Source Unknown

46 Acres

2014

5A

2027
  • Toxicity
    • Agriculture

46 Acres

2014

5B

2015


3

Pacheco Creek

River & Stream

3305.300200,3305.400104,3305.400201,3305.400301,3305.400302,3305.400305  /  18060002
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

26 Miles

2010

5B

2010
  • Oxygen, Dissolved
    • Source Unknown

26 Miles

2014

5A

2027
  • Turbidity
    • Source Unknown

26 Miles

2010

5A

2023


3

Pacific Ocean (Point Ano Nuevo to Soquel Point)

Ocean

30411022  /  18060001
  • Dieldrin
    • Source Unknown

26832 Acres

2010

5A

2027


3

Pacific Ocean at Arroyo Burro Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532010  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles

2010

5A

2027
  • Total Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027


3

Pacific Ocean at Avila Beach (Avila Pier)

Coastal & Bay Shoreline

31024021  /  18060006
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

0.03 Miles

2010

5A

2027
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Avila Beach (SLO creek mouth)

Coastal & Bay Shoreline

31024021  /  18060006
  • Enterococcus
    • Source Unknown

0.03 Miles

2010

5A

2027
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Capitola Beach (Santa Cruz County)

Coastal & Bay Shoreline

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

0.03 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

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

Coastal & Bay Shoreline

31534020  /  18060013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027


3

Pacific Ocean at Cayucos (Cayucos Creek Mouth)

Coastal & Bay Shoreline

31016010  /  18060006
  • Enterococcus
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Cowell Beach (Santa Cruz County)

Coastal & Bay Shoreline

30412053  /  18060001
  • Fecal Coliform
    • Source Unknown

0.11 Miles

2010

5A

2027
  • Total Coliform
    • Source Unknown

0.11 Miles

2010

5A

2027
    Achievement of Water Quality Standards is likely by the next listing cycle due to installation of avian exclusion structures on the Santa Cruz Wharf, adjacent to this beach.


3

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

Coastal & Bay Shoreline

31532011  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027
  • Total Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027


3

Pacific Ocean at Goleta Beach (Santa Barbara County)

Coastal & Bay Shoreline

31531020  /  18060013
  • Total Coliform
    • Source Unknown

0.06 Miles

2010

5A

2027


3

Pacific Ocean at Guadalupe Dunes (Santa Barbara County)

Coastal & Bay Shoreline

31210030  /  18060008
  • Total Coliform
    • Source Unknown

0.45 Miles

2010

5A

2027


3

Pacific Ocean at Hammonds Beach (Santa Barbara County)

Coastal & Bay Shoreline

31533010  /  18060013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027
  • Total Coliform
    • Source Unknown

0.06 Miles

2010

5A

2027


3

Pacific Ocean at Hope Ranch Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532010  /  18060013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027
  • Total Coliform
    • Source Unknown

0.06 Miles

2010

5A

2027


3

Pacific Ocean at Jalama Beach (Santa Barbara County)

Coastal & Bay Shoreline

31510051  /  18060013
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027
  • Total Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027


3

Pacific Ocean at Leadbetter Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532011  /  18060013
  • Enterococcus
    • Source Unknown

0.06 Miles

2010

5A

2027
  • Total Coliform
    • Source Unknown

0.06 Miles

2010

5A

2027


3

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

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

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

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Mitchells Cove Beach

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Monterey State Beach (Del Monte Beach)

Coastal & Bay Shoreline

30912014  /  18060012
  • Enterococcus
    • Source Unknown

0.03 Miles

2010

5A

2027
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Natural Bridges Beach

Coastal & Bay Shoreline

30411031  /  18060001
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at New Brighton Beach (Santa Cruz County)

Coastal & Bay Shoreline

30413014  /  18060001
  • Total Coliform
    • Source Unknown

0.06 Miles

2010

5A

2027


3

Pacific Ocean at Ocean Beach (Santa Barbara County)

Coastal & Bay Shoreline

31410050  /  18060010
  • Fecal Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027
  • Total Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027


3

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

Coastal & Bay Shoreline

31025012  /  18060006
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Pismo Beach (San Luis Obispo County)

Coastal & Bay Shoreline

31026014  /  18060006
  • Enterococcus
    • Source Unknown

0.03 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

0.03 Miles

2014

5A

2027
  • Total Coliform
    • Source Unknown

0.03 Miles

2014

5A

2027


3

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

Coastal & Bay Shoreline

31026014  /  18060006
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

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

Coastal & Bay Shoreline

31026014  /  18060006
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

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

Coastal & Bay Shoreline

31026014  /  18060006
  • Fecal Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Refugio Beach (Santa Barbara County)

Coastal & Bay Shoreline

31510022  /  18060013
  • Total Coliform
    • Source Unknown

0.06 Miles

2002

5A

2027


3

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

Coastal & Bay Shoreline

30413023  /  18060001
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Seabright (Castle) Beach

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pacific Ocean at Stillwater Cove Beach

Coastal & Bay Shoreline

30950042  /  18060012
  • Enterococcus
    • Source Unknown

0.06 Miles

1800

5A

2027


3

Pacific Ocean at Twin Lakes Beach (Santa Cruz County)

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • Source Unknown

0.06 Miles

2010

5A

2027


3

Pacific Ocean at Waddell Creek Beach

Coastal & Bay Shoreline

30420013  /  18060001
  • Total Coliform
    • Source Unknown

0.03 Miles

2010

5A

2027


3

Pajaro River

River & Stream

3305.100200,3305.100301,3305.200401,3305.200402,3305.300200  /  18060002
  • Boron
    • Source Unknown

30 Miles

2006

5A

2027
    Impaired length for Boron is below Main Street (in Watsonville) to the mouth.
  • Chlordane
    • Source Unknown

30 Miles

2010

5A

2027
  • Chloride
    • Source Unknown

30 Miles

2010

5A

2027
  • Chlorpyrifos
    • Agriculture

30 Miles

2010

5B

2013
  • Chromium
    • Source Unknown

30 Miles

2014

5A

2027
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

30 Miles

2010

5A

2027
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

30 Miles

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

30 Miles

2014

5A

2027
  • Diazinon
    • Agriculture

30 Miles

2010

5B

2013
  • Dieldrin
    • Source Unknown

30 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

30 Miles

2010

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

30 Miles

2002

5B

2010
    Impaired reach is changed from 2006 to include the entire Pajaro River.
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

30 Miles

2006

5B

2006
  • Oxygen, Dissolved
    • Source Unknown

30 Miles

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

30 Miles

2010

5A

2027
  • 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
  • Sodium
    • Source Unknown

30 Miles

2010

5A

2027
  • Toxicity
    • Source Unknown

30 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

30 Miles

2010

5A

2023
  • pH
    • Source Unknown

30 Miles

2010

5A

2027


3

Pajaro River Estuary

Estuary

30510030  /  18060002
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

24 Acres

2014

5A

2027
  • Diazinon
    • Agriculture

24 Acres

2010

5B

2013
  • Malathion
    • Source Unknown

24 Acres

2014

5A

2023
  • Oxygen, Dissolved
    • Source Unknown

24 Acres

2014

5A

2027
  • Temperature, water
    • Source Unknown

24 Acres

2014

5A

2023
  • Toxicity
    • Source Unknown

24 Acres

2014

5A

2023
  • pH
    • Source Unknown

24 Acres

2014

5A

2027


3

Pennington Creek

River & Stream

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

5.5 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

5.5 Miles

2002

5A

2027
    A TMDL was approved by USEPA for fecal coliform in Chorro Creek (the receiving water for Pennington Creek) on January 20, 2004.


3

Pico Creek

River & Stream

3310.130204  /  18060006
  • Oxygen, Dissolved
    • Source Unknown

1.1 Miles

2014

5A

2027
    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
    • Source Unknown

105 Acres

2014

5A

2018
  • Chlorophyll-a
    • Source Unknown

105 Acres

2010

5A

2018
  • Cyanobacteria hepatotoxic microcystins
    • Source Unknown

105 Acres

2010

5A

2018
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

105 Acres

2014

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

105 Acres

2014

5A

2018
  • Scum/Foam-unnatural
    • Source Unknown

105 Acres

2010

5A

2018
  • pH
    • Source Unknown

105 Acres

2010

5A

2027


3

Pismo Creek

River & Stream

3310.260003,3310.260004  /  18060006
  • Chloride
    • Source Unknown

5.6 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

5.6 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

5.6 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

5.6 Miles

2014

5A

2027
  • Sodium
    • Source Unknown

5.6 Miles

2010

5A

2027
  • Turbidity
    • Source Unknown

5.6 Miles

2010

5A

2023


3

Port San Luis

Bay & Harbor

31025012  /  18060006
  • Arsenic
    • Source Unknown

390 Acres

2010

5A

2027
  • Dieldrin
    • Source Unknown

390 Acres

2010

5A

2027
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • Source Unknown

390 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

390 Acres

2014

5A

2027


3

Porter Gulch Creek

River & Stream

3304.130103,3304.130104  /  18060001
  • Enterococcus
    • Source Unknown

2.3 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

2.3 Miles

2010

5A

2027


3

Prefumo Creek

River & Stream

3310.240102,3310.240202  /  18060006
  • Fecal Coliform
    • Source Unknown

6.2 Miles

2010

5A

2027
  • Nitrate
    • Agriculture
    • Natural Sources

6.2 Miles

2006

5B

2007
  • Oxygen, Dissolved
    • Source Unknown

6.2 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

6.2 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

6.2 Miles

2010

5A

2023


3

Quail Creek

River & Stream

30919000  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

4.2 Miles

2014

5B

2015
  • Chlorpyrifos
    • Agriculture

4.2 Miles

2010

5B

2011
  • Diazinon
    • Agriculture

4.2 Miles

2010

5B

2011
  • Dimethoate
    • Source Unknown

4.2 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Illegal dumping

4.2 Miles

2010

5B

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

4.2 Miles

2010

5B

2012
  • Malathion
    • Source Unknown

4.2 Miles

2014

5A

2027
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

4.2 Miles

2006

5B

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

4.2 Miles

2014

5B

2015
  • Permethrin, total
    • Source Unknown

4.2 Miles

2014

5A

2027
  • Temperature, water
    • Source Unknown

4.2 Miles

2010

5A

2023
  • Toxicity
    • Agriculture

4.2 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

4.2 Miles

2010

5A

2023


3

Rincon Creek

River & Stream

3315.340002  /  18060013
  • Boron
    • Source Unknown

10 Miles

2006

5A

2027
  • Chloride
    • Source Unknown

10 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

10 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

10 Miles

2010

5A

2027
  • Nitrate
    • Source Unknown

10 Miles

2010

5A

2023
  • Oxygen, Dissolved
    • Source Unknown

10 Miles

2014

5A

2027
  • Sodium
    • Source Unknown

10 Miles

2010

5A

2027
  • Toxicity
    • Source Unknown

10 Miles

2014

5A

2023


3

Rodeo Creek Gulch

River & Stream

3304.130103,3304.130104  /  18060001
  • Turbidity
    • Source Unknown

5.6 Miles

2010

5A

2023
  • pH
    • Source Unknown

5.6 Miles

2010

5A

2027


3

Romero Creek

River & Stream

3315.330001  /  18060013
  • pH
    • Source Unknown

5.1 Miles

2010

5A

2027


3

Salinas Reclamation Canal

River & Stream

3309.110000  /  18060011
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2015
  • Chlorpyrifos
    • Agriculture

13 Miles

2010

5B

2011
  • Copper
    • Source Unknown

13 Miles

2010

5A

2027
  • Diazinon
    • Agriculture

13 Miles

2010

5B

2011
  • 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
  • Malathion
    • Source Unknown

13 Miles

2014

5A

2027
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

13 Miles

2010

5B

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

13 Miles

2014

5B

2015
  • Permethrin, total
    • Source Unknown

13 Miles

2014

5A

2027
  • Priority Organics
    • Source Unknown

13 Miles

1996

5A

2027
  • Toxicity
    • Agriculture

13 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

13 Miles

2010

5A

2018
  • pH
    • Source Unknown

13 Miles

2010

5A

2027


3

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

River & Stream

3309.110000  /  18060011
  • Benthic Community Effects
    • Channelization
    • Flow Alteration/Regulation/Modification
    • Hydromodification
    • Source Unknown

36 Miles

2014

5A

2027
  • Chlordane
    • Source Unknown

36 Miles

2010

5A

2027
  • Chloride
    • Source Unknown

36 Miles

2010

5A

2027
  • Chlorpyrifos
    • Agriculture

36 Miles

2010

5B

2011
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

36 Miles

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

36 Miles

2014

5A

2027
  • Diazinon
    • Agriculture

36 Miles

2010

5B

2011
  • Dieldrin
    • Source Unknown

36 Miles

2010

5A

2027
  • Enterococcus
    • Source Unknown

36 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

36 Miles

2010

5B

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

36 Miles

2002

5B

2012
    The impaired reach is between Gonzales and Spreckes. This is because the Water Contact Recreation beneficial use does not apply to the lowest reach of the River (between Spreckles and the Lagoon)
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

36 Miles

2006

5B

2015
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

36 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

36 Miles

2010

5A

2027
  • Total Dissolved Solids
    • Source Unknown

36 Miles

2010

5A

2027
  • Toxaphene
    • Source Unknown

36 Miles

1994

5A

2027
  • Toxicity
    • Agriculture

36 Miles

2014

5B

2011
  • Turbidity
    • Source Unknown

36 Miles

2010

5A

2018
  • pH
    • Source Unknown

36 Miles

2010

5A

2027


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
  • Fecal Coliform
    • Source Unknown

73 Miles

2010

5A

2027
  • Temperature, water
    • Source Unknown

73 Miles

2010

5A

2023
  • Toxicity
    • Source Unknown

73 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

73 Miles

2010

5A

2018
  • pH
    • Source Unknown

73 Miles

2010

5A

2027


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
  • Chloride
    • Source Unknown

50 Miles

2002

5A

2027
  • Sodium
    • Source Unknown

50 Miles

2002

5A

2027
  • Turbidity
    • Source Unknown

50 Miles

2010

5A

2018
  • pH
    • Source Unknown

50 Miles

2010

5A

2027


3

Salinas River Lagoon (North)

Estuary

30911010  /  18060011
  • Chlorpyrifos
    • Agriculture

197 Acres

2014

5B

2011
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

197 Acres

2014

5A

2018
  • Nutrients
    • Agriculture

197 Acres

1992

5B

2015
  • Temperature, water
    • Source Unknown

197 Acres

2014

5A

2023
  • Toxicity
    • Agriculture

197 Acres

2014

5B

2011
  • pH
    • Source Unknown

197 Acres

2014

5A

2027


3

Salinas River Refuge Lagoon (South)

Estuary

30911010  /  18060011
  • Turbidity
    • Source Unknown

30 Acres

2010

5A

2023
  • pH
    • Source Unknown

30 Acres

2010

5A

2027


3

Salsipuedes Creek (Santa Barbara County)

River & Stream

3314.200103,3314.200202,3314.200203  /  18060013
  • Chloride
    • Source Unknown

9 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

9 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

9 Miles

2010

5A

2027
  • Turbidity
    • Source Unknown

9 Miles

2010

5A

2023


3

Salsipuedes Creek (Santa Cruz County)

River & Stream

3305.100301  /  18060002
  • Escherichia coli (E. coli)
    • Source Unknown

2.6 Miles

2010

5B

2012
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments
    • Urban Runoff/Storm Sewers

2.6 Miles

2010

5B

2012
  • Nitrate
    • Source Unknown

2.6 Miles

2010

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

2.6 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

2.6 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

2.6 Miles

2010

5A

2023
  • pH
    • Source Unknown

2.6 Miles

2010

5A

2027


3

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

River & Stream

31300050  /  18060009
  • Boron
    • Source Unknown

14 Miles

2002

5A

2027
  • Chloride
    • Source Unknown

14 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

14 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

14 Miles

2010

5A

2027
  • Nitrate
    • Agriculture

14 Miles

2010

5C

    The impaired reach is between Barka Slough (near Highway 1) and the Highway 101 bridge.
  • Oxygen, Dissolved
    • Source Unknown

14 Miles

2014

5A

2027
    The impaired segment is from the creek mouth up to the western edge of Barka Slough.
  • Sodium
    • Source Unknown

14 Miles

2010

5A

2027


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
    • Source Unknown

5379 Acres

2010

5A

2018


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
  • Boron
    • Source Unknown

87 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

87 Miles

2010

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

87 Miles

2002

5B

2010
  • 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
    • Source Unknown

87 Miles

2014

5A

2027
  • pH
    • Source Unknown

87 Miles

2010

5A

2027


3

San Bernardo Creek

River & Stream

3310.220001,3310.220002  /  18060006
  • Escherichia coli (E. coli)
    • Source Unknown

7.1 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

7.1 Miles

2002

5A

2027
    A TMDL was approved by USEPA for fecal coliform in Chorro Creek (the receiving water for San Bernardo Creek) on January 20, 2004.


3

San Jose Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Chloride
    • Source Unknown

9.9 Miles

2010

5A

2027
  • Enterococcus
    • Source Unknown

9.9 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

9.9 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

9.9 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

9.9 Miles

2010

5A

2027
  • Specific Conductivity
    • Source Unknown

9.9 Miles

2014

5A

2027
  • Temperature, water
    • Source Unknown

9.9 Miles

2010

5A

2023
  • pH
    • Source Unknown

9.9 Miles

2010

5A

2027


3

San Juan Creek (San Benito County)

River & Stream

30520050  /  18060002
  • Escherichia coli (E. coli)
    • Source Unknown

7.3 Miles

2010

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

7.3 Miles

2010

5B

2010
  • Nitrate
    • Source Unknown

7.3 Miles

2010

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

7.3 Miles

2014

5A

2018
  • Toxicity
    • Source Unknown

7.3 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

7.3 Miles

2010

5A

2023


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
    • Source Unknown

48 Miles

2002

5A

2027
  • Chloride
    • Grazing-Related Sources
    • Natural Sources
    • Source Unknown

48 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Natural Sources

48 Miles

2010

5B

2011
  • Fecal Coliform
    • Domestic Animals/Livestock
    • Natural Sources

48 Miles

2002

5B

2011
  • Sodium
    • Source Unknown

48 Miles

2010

5A

2027
  • Specific Conductivity
    • Source Unknown

48 Miles

2014

5A

2027
  • pH
    • Source Unknown

48 Miles

2010

5A

2027


3

San Lorenzo River

River & Stream

3304.120101,3304.120102,3304.120201,3304.120202,3304.120203,3304.120503,3304.120600  /  18060001
  • Chlordane
    • Source Unknown

29 Miles

2010

5A

2027
  • Chloride
    • Hydromodification
    • Other

29 Miles

2010

5A

2027
    The impaired reach is from the river mouth to Highway 1. This reach is tidally influenced.
  • Chlorpyrifos
    • Source Unknown

29 Miles

2010

5B

2015
    Impaired length from San Lorenzo River Lagoon to confluence with Zayante Creek (approximately 7 miles).
  • Enterococcus
    • Source Unknown

29 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

29 Miles

2014

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Onsite Wastewater Systems (Septic Tanks)
    • Transient encampments
    • Urban Runoff/Storm Sewers

29 Miles

2014

5B

2011
  • 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)
    • Source Unknown

29 Miles

2010

5A

2027
  • Sedimentation/Siltation
    • Construction/Land Development
    • Land Development
    • Silviculture
    • Urban Runoff/Storm Sewers

29 Miles

1998

5B

2004
  • Sodium
    • Hydromodification
    • Other

29 Miles

2010

5A

2027
    The impaired reach is from the river mouth to Highway 1. This reach is tidally influenced.
  • Temperature, water
    • Source Unknown

29 Miles

2010

5A

2023


3

San Luis Obispo Creek (below Osos Street)

River & Stream

3310.240101,3310.240102,3310.240201,3310.240202  /  18060006
  • Benthic Community Effects
    • Source Unknown

10 Miles

2014

5A

2027
  • Chloride
    • Source Unknown

10 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

10 Miles

2014

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Pet Waste
    • Natural Sources
    • Transient encampments
    • Urban Runoff/Storm Sewers

10 Miles

2014

5B

2005
  • Nitrate
    • Agriculture
    • Municipal Point Sources
    • Natural Sources
    • Nonpoint Source
    • Other Urban Runoff

10 Miles

2014

5B

2007
  • Oxygen, Dissolved
    • Source Unknown

10 Miles

2014

5A

2023
  • Sodium
    • Source Unknown

10 Miles

2010

5A

2027


3

San Luisito Creek

River & Stream

3310.220001,3310.220002  /  18060006
  • Escherichia coli (E. coli)
    • Source Unknown

7.1 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

7.1 Miles

2002

5A

2027
    For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


3

San Miguelito Creek

River & Stream

3314.100200,3314.100500  /  18060013
  • Chloride
    • Source Unknown

10 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

10 Miles

2010

5A

2027
  • Nitrate
    • Source Unknown

10 Miles

2010

5A

2023
  • Oxygen, Dissolved
    • Source Unknown

10 Miles

2014

5A

2027
  • Sodium
    • Source Unknown

10 Miles

2010

5A

2027
  • Temperature, water
    • Source Unknown

10 Miles

2010

5A

2023
  • Toxicity
    • Source Unknown

10 Miles

2014

5A

2023
  • pH
    • Source Unknown

10 Miles

2010

5A

2027


3

San Pedro Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Enterococcus
    • Source Unknown

6.3 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

6.3 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

6.3 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

6.3 Miles

2010

5A

2027
  • Temperature, water
    • Source Unknown

6.3 Miles

2010

5A

2023
  • pH
    • Source Unknown

6.3 Miles

2010

5A

2027


3

San Simeon Creek

River & Stream

3310.130101,3310.130102,3310.130103  /  18060006
  • Chloride
    • Source Unknown

5.7 Miles

2010

5A

2027
    Impaired length for Chloride is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.
  • Nitrate
    • Source Unknown

5.7 Miles

2010

5A

2023
    Impaired length for Nitrate is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.
  • Oxygen, Dissolved
    • Source Unknown

5.7 Miles

2014

5A

2027
  • Sodium
    • Source Unknown

5.7 Miles

2010

5A

2027
    Impaired length for Sodium is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.


3

Santa Barbara Harbor

Bay & Harbor

31532011  /  18060013
  • Arsenic
    • Source Unknown

79 Acres

2010

5A

2027
  • Copper
    • Source Unknown

79 Acres

2010

5A

2027
  • Dieldrin
    • Source Unknown

79 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

79 Acres

2014

5A

2027


3

Santa Cruz Harbor

Bay & Harbor

30412053  /  18060001
  • Arsenic
    • Source Unknown

22 Acres

2010

5A

2027
  • Copper
    • Source Unknown

22 Acres

2010

5A

2027
  • Dieldrin
    • Source Unknown

22 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

22 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

22 Acres

2014

5A

2027


3

Santa Maria River

River & Stream

3312.100101,3312.100300  /  18060008
  • Chloride
    • Source Unknown

25 Miles

2010

5A

2027
  • Chlorpyrifos
    • Agriculture

25 Miles

2006

5B

2015
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2014

5B

2015
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture

25 Miles

2018

5B

2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture

25 Miles

2018

5B

2015
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

25 Miles

2006

5B

2015
  • Diazinon
    • Agriculture

25 Miles

2018

5B

2015
  • Dieldrin
    • Agriculture

25 Miles

2006

5B

2015
  • Endrin
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2006

5B

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

25 Miles

2010

5B

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

25 Miles

2002

5B

2013
  • Malathion
    • Agriculture

25 Miles

2014

5B

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

25 Miles

2002

5B

2016
  • Sodium
    • Source Unknown

25 Miles

2010

5A

2027
  • Toxaphene
    • Agriculture

25 Miles

2018

5B

2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2014

5B

2015
  • Turbidity
    • Source Unknown

25 Miles

2010

5A

2023


3

Santa Maria River Estuary

Estuary

3312.100300  /  18060008
  • Chlorpyrifos
    • Agriculture

5.6 Acres

2014

5B

2015
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture

5.6 Acres

2014

5B

2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture

5.6 Acres

2014

5B

2015
  • Diazinon
    • Agriculture

5.6 Acres

2014

5B

2015
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.6 Acres

2010

5B

2013
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.6 Acres

2010

5B

2013
  • Malathion
    • Agriculture

5.6 Acres

2014

5B

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

5.6 Acres

2014

5B

2016
  • 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
    • Source Unknown

5.6 Acres

2014

5A

2027


3

Santa Monica Creek

River & Stream

3315.340003,3315.340004  /  18060013
  • Fecal Coliform
    • Source Unknown

5 Miles

2010

5A

2027
  • pH
    • Source Unknown

5 Miles

2010

5A

2027


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

2012
  • 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
  • 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
  • Sodium
    • Source Unknown

11 Miles

2010

5A

2027
  • Turbidity
    • Source Unknown

11 Miles

2010

5A

2023


3

Santa Rosa Creek (San Luis Obispo County)

River & Stream

3310.140101,3310.140102,3310.140201  /  18060010
  • Fecal Coliform
    • Source Unknown

15 Miles

2010

5A

2027
  • Total Dissolved Solids
    • Source Unknown

15 Miles

2014

5A

2027


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
  • Sedimentation/Siltation
    • Source Unknown

41 Miles

2006

5A

2027
  • Sodium
    • Source Unknown

41 Miles

2010

5A

2027
  • Temperature, water
    • Source Unknown

41 Miles

2010

5A

2023
  • Total Dissolved Solids
    • Source Unknown

41 Miles

2010

5A

2027
  • Toxicity
    • Source Unknown

41 Miles

2014

5A

2023


3

Santa Ynez River (above Lake Cachuma)

River & Stream

3314.510501,3314.510502,3314.510504,3314.510505  /  18060010
  • Temperature, water
    • Source Unknown

22 Miles

2010

5A

2023
  • Toxicity
    • Source Unknown

22 Miles

2014

5A

2023


3

Santa Ynez River (below city of Lompoc to Ocean)

River & Stream

3314.100500,3314.100602  /  18060010
  • Chloride
    • Source Unknown

6.7 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

6.7 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

6.7 Miles

2010

5A

2027
  • Nitrate
    • Source Unknown

6.7 Miles

2006

5A

2018
  • Oxygen, Dissolved
    • Source Unknown

6.7 Miles

2014

5A

2018
  • Sedimentation/Siltation
    • Source Unknown

6.7 Miles

1996

5A

2027
  • Sodium
    • Source Unknown

6.7 Miles

2010

5A

2027
  • Temperature, water
    • Source Unknown

6.7 Miles

2010

5A

2023
  • Total Dissolved Solids
    • Source Unknown

6.7 Miles

2010

5A

2027
  • Toxicity
    • Source Unknown

6.7 Miles

2014

5A

2023
  • pH
    • Source Unknown

6.7 Miles

2010

5A

2027


3

Schwan Lake

Lake & Reservoir

3304.120503  /  18060001
  • Escherichia coli (E. coli)
    • Source Unknown

23 Acres

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

23 Acres

2010

5A

2027
  • Nutrients
    • Source Unknown

23 Acres

1992

5A

2027
  • Total Coliform
    • Source Unknown

23 Acres

2010

5A

2027


3

Scott Creek Lagoon

River & Stream

3304.110202  / 
  • Chloride
    • Natural Sources

0.45 Miles

2014

5A

2027
  • Sodium
    • Natural Sources

0.45 Miles

2014

5A

2027


3

Shuman Canyon Creek

River & Stream

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

8.7 Miles

2006

5A

2027


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

2027


3

Sloans Canyon Creek

River & Stream

3314.100300,3314.100500  /  18060013
  • Ammonia
    • Source Unknown

6.7 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

6.7 Miles

2014

5A

2023
  • pH
    • Source Unknown

6.7 Miles

2014

5A

2027


3

Soda Lake

Saline Lake

31100050  /  18060003
  • Ammonia
    • Source Unknown

2627 Acres

2014

5A

2023


3

Soquel Creek

River & Stream

3304.130101,3304.130102,3304.130103,3304.130104,3304.130105  /  18060001
  • Enterococcus
    • Source Unknown

18 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Domestic Pet Waste
    • Transient encampments
    • Urban Runoff/Storm Sewers

18 Miles

2010

5B

2010
  • Fecal Coliform
    • Collection System Failure
    • Domestic Pet Waste
    • Transient encampments
    • Urban Runoff/Storm Sewers

18 Miles

2010

5B

2010


3

Soquel Lagoon

Estuary

30413014  /  18060001
  • Indicator Bacteria
    • Source Unknown

1.2 Acres

2014

5B

2010
  • Sedimentation/Siltation
    • Source Unknown

1.2 Acres

1992

5A

2027


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

2027
  • Fecal Coliform
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

7.7 Miles

2010

5B

2005
  • pH
    • Source Unknown

7.7 Miles

2010

5A

2027


3

Struve Slough

River & Stream

3305.100301  /  18060002
  • Chlorophyll-a
    • Source Unknown

2.8 Miles

2010

5A

2018
  • Escherichia coli (E. coli)
    • Source Unknown

2.8 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

2.8 Miles

2014

5B

2007
  • Oxygen, Dissolved
    • Source Unknown

2.8 Miles

2014

5A

2018
  • Toxicity
    • Source Unknown

2.8 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

2.8 Miles

2010

5A

2023
  • pH
    • Source Unknown

2.8 Miles

2010

5A

2027


3

Sycamore Creek

River & Stream

3315.320002  /  18060013
  • Chloride
    • Source Unknown

3.9 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

3.9 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

3.9 Miles

2014

5A

2027
  • Sodium
    • Source Unknown

3.9 Miles

2010

5A

2027
  • Turbidity
    • Source Unknown

3.9 Miles

2010

5A

2023
  • pH
    • Source Unknown

3.9 Miles

2010

5A

2027


3

Tecolote Creek (Santa Barbara County)

River & Stream

3315.100103  /  18060013
  • Chloride
    • Source Unknown

6.9 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

6.9 Miles

2010

5A

2027
  • Sodium
    • Source Unknown

6.9 Miles

2010

5A

2027


3

Tecolotito Creek

River & Stream

3315.310003  / 
  • Chloride
    • Source Unknown

0.87 Miles

2014

5A

2027
  • Enterococcus
    • Source Unknown

0.87 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

0.87 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

0.87 Miles

2014

5A

2027
  • Nitrate
    • Agriculture

0.87 Miles

2014

5B

2014
  • Sodium
    • Source Unknown

0.87 Miles

2014

5A

2027


3

Tembladero Slough

River & Stream

3309.110000  /  18060011
  • Chlorophyll-a
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2010

5B

2015
  • Chlorpyrifos
    • Agriculture

3.4 Miles

2010

5B

2011
  • Diazinon
    • Agriculture

3.4 Miles

2010

5B

2011
  • Enterococcus
    • Source Unknown

3.4 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

3.4 Miles

2010

5B

2012
  • Fecal Coliform
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

3.4 Miles

2002

5B

2012
  • Malathion
    • Source Unknown

3.4 Miles

2014

5A

2027
  • Nickel
    • Source Unknown

3.4 Miles

2010

5A

2027
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2010

5B

2015
  • Oxygen, Dissolved
    • Agriculture

3.4 Miles

2014

5B

2015
  • Total Coliform
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

3.4 Miles

2010

5B

2012
  • Toxicity
    • Agriculture

3.4 Miles

2014

5A

2018
  • Turbidity
    • Source Unknown

3.4 Miles

2010

5A

2018
  • pH
    • Source Unknown

3.4 Miles

2010

5A

2027


3

Tequisquita Slough

River & Stream

3305.300200  /  18060002
  • Ammonia
    • Source Unknown

7.3 Miles

2014

5A

2018
  • Chlorophyll-a
    • Source Unknown

7.3 Miles

2010

5A

2018
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

7.3 Miles

2002

5B

2010
  • Oxygen, Dissolved
    • Source Unknown

7.3 Miles

2014

5A

2018
  • Toxicity
    • Source Unknown

7.3 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

7.3 Miles

2010

5A

2023
  • pH
    • Source Unknown

7.3 Miles

2010

5A

2027


3

Toro Canyon Creek

River & Stream

31534010  /  18060013
  • Fecal Coliform
    • Source Unknown

3.8 Miles

2010

5A

2027


3

Toro Creek

River & Stream

3310.180000  /  18060006
  • Fecal Coliform
    • Source Unknown

11 Miles

2010

5A

2027


3

Tres Pinos Creek

River & Stream

3305.300200,3305.500403,3305.500405,3305.500406,3305.500407,3305.500703,3305.500705  /  18060002
  • Escherichia coli (E. coli)
    • Source Unknown

30 Miles

2010

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

30 Miles

2010

5B

2010
  • pH
    • Natural Sources
    • Source Unknown

30 Miles

2010

5A

2027


3

Tularcitos Creek

River & Stream

3307.000302,3307.000303,3307.000304  /  18060012
  • Chloride
    • Source Unknown

14 Miles

2010

5A

2027
  • Fecal Coliform
    • Domestic Animals/Livestock
    • Natural Sources

14 Miles

2010

5B

2011
  • Sodium
    • Source Unknown

14 Miles

2010

5A

2027


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
  • 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
    • Source Unknown

4.5 Miles

2014

5A

2023


3

Uvas Creek (above Uvas Reservoir)

River & Stream

3305.200101,3305.200105  /  18060002
  • Temperature, water
    • Source Unknown

8.2 Miles

2010

5A

2023
  • pH
    • Source Unknown

8.2 Miles

2010

5A

2027


3

Uvas Creek (below Uvas Reservoir)

River & Stream

3305.200102,3305.200201,3305.300100,3305.300200  /  18060002
  • Oxygen, Dissolved
    • Source Unknown

14 Miles

2014

5A

2018
  • Turbidity
    • Source Unknown

14 Miles

2010

5A

2023


3

Uvas Reservoir

Lake & Reservoir

3305.200101,3305.200102,3305.200201  /  18060002
  • Mercury
    • Source Unknown

272 Acres

2010

5A

2018


3

Valencia Creek

River & Stream

3304.130201,3304.130203  /  18060001
  • Escherichia coli (E. coli)
    • Source Unknown

6.3 Miles

2014

5A

2027
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2014

5B

2011
  • Sedimentation/Siltation
    • Source Unknown

6.3 Miles

2002

5A

2027


3

Villa Creek

River & Stream

3310.150000  /  18060006
  • Fecal Coliform
    • Source Unknown

12 Miles

2010

5A

2027


3

Waddell Creek Lagoon

River & Stream

3304.110101  / 
  • Chloride
    • Natural Sources

0.39 Miles

2014

5A

2027
  • Sodium
    • Natural Sources

0.39 Miles

2014

5A

2027
  • pH
    • Source Unknown

0.39 Miles

2014

5A

2027


3

Walters Creek

River & Stream

3310.220001  /  18060006
  • Fecal Coliform
    • Source Unknown

2.9 Miles

2002

5A

2027
    For 2006, fecal coliform was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


3

Warden Creek

River & Stream

3310.230003  /  18060006
  • Escherichia coli (E. coli)
    • Source Unknown

6 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

6 Miles

2002

5B

2004
    A TMDL was approved by USEPA for fecal coliform in Los Osos Creek (the receiving water for Warden Creek) on January 20, 2004.
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

6 Miles

2010

5B

2005
  • Oxygen, Dissolved
    • Source Unknown

6 Miles

2014

5A

2027


3

Watsonville Creek

River & Stream

30510030  /  18060011
  • Escherichia coli (E. coli)
    • Source Unknown

5.1 Miles

2010

5A

2027
  • Fecal Coliform
    • Source Unknown

5.1 Miles

2010

5A

2027
  • Nitrate
    • Source Unknown

5.1 Miles

2010

5A

2023
  • Oxygen, Dissolved
    • Source Unknown

5.1 Miles

2014

5A

2027
  • pH
    • Source Unknown

5.1 Miles

2010

5A

2027


3

Watsonville Slough

River & Stream

3305.100301  /  18060002
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

6.2 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • Source Unknown

6.2 Miles

2014

5A

2027
  • Fecal Coliform
    • Source Unknown

6.2 Miles

2014

5B

2007
  • Malathion
    • Source Unknown

6.2 Miles

2014

5A

2027
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.2 Miles

2014

5A

2018
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.2 Miles

2014

5A

2018
  • Toxicity
    • Source Unknown

6.2 Miles

2014

5A

2023
  • Turbidity
    • Source Unknown

6.2 Miles

2010

5A

2023


3

Willow Creek (Monterey County)

River & Stream

3308.000602,3308.000603  /  18060006
  • pH
    • Source Unknown

4.8 Miles

2010

5A

2027


3

Zayante Creek

River & Stream

3304.120202,3304.120401,3304.120402  /  18060001
  • Chlorpyrifos
    • Source Unknown

9.3 Miles

2010

5B

2015
  • Fecal Coliform
    • Source Unknown

9.3 Miles

2010

5A

2027
  • Sedimentation/Siltation
    • Channel Erosion
    • Habitat Modification
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Road Construction

9.3 Miles

2002

5B

2004


4

Alamitos Bay

Bay & Harbor

40512000  /  18070104
  • Indicator Bacteria
    • Source Unknown

328 Acres

2006

5A

2019
  • Oxygen, Dissolved
    • Source Unknown

328 Acres

2014

5A

2027


4

Alhambra Wash

River & Stream

40531000  /  18070105
  • Ammonia
    • Other

6.9 Miles

2014

5A

2027


4

Artesia-Norwalk Drain

River & Stream

40515010  /  18070104
  • Indicator Bacteria
    • Source Unknown

2.5 Miles

2010

5B

2016
  • Selenium
    • Source Unknown

2.5 Miles

2010

5A

2021


4

Arundell Barranca (Ventura County)

River & Stream

40311000  /  18070103
  • Indicator Bacteria
    • Source Unknown

4.9 Miles

2014

5A

2027


4

Balboa Lake

Lake & Reservoir

40521000  /  18070105
  • Ammonia
    • Source Unknown

27 Acres

2014

5B

2004
  • Oxygen, Dissolved
    • Source Unknown

27 Acres

2014

5A

2027
  • Toxicity
    • Source Unknown

27 Acres

2014

5A

2027


4

Ballona Creek

River & Stream

40513000  /  18070104
  • Copper
    • Source Unknown

6.5 Miles

1800

5B

2005
  • Cyanide
    • Source Unknown

6.5 Miles

1996

5A

2019
  • Indicator Bacteria
    • Nonpoint Source
    • Point Source

6.5 Miles

2014

5B

2007
  • Lead
    • Source Unknown

6.5 Miles

2002

5B

2005
  • Toxicity
    • Source Unknown

6.5 Miles

1996

5B

2005
    The sediment toxicity collected to support this listing decision were collected from Reach 2 of Ballona Creek as identified in the Los Angeles Regional Basin Plan.
  • Trash
    • Source Unknown

6.5 Miles

1996

5B

2001
  • Viruses (enteric)
    • Nonpoint Source
    • Point Source

6.5 Miles

1996

5B

2007
  • Zinc
    • Source Unknown

6.5 Miles

1996

5B

2005


4

Boulder Creek (Ventura County)

River & Stream

40331000  /  18070102
  • Bifenthrin
    • Source Unknown

6.5 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

6.5 Miles

2014

5A

2027


4

Bouquet Canyon Creek (below Bouqet Reservoir)

River & Stream

40352000  /  18070102
  • Temperature, water
    • Source Unknown

14 Miles

2014

5A

2029


4

Bull Creek (Los Angeles County)

River & Stream

40521000  /  18070105
  • Ammonia
    • Source Unknown

6.5 Miles

2014

5B

2004
  • Toxicity
    • Source Unknown

6.5 Miles

2014

5A

2027


4

Burbank Western Channel

River & Stream

40521000  /  18070105
  • Copper
    • Source Unknown

13 Miles

2006

5B

2005
  • Cyanide
    • Source Unknown

13 Miles

2006

5A

2019
  • Indicator Bacteria
    • Source Unknown

13 Miles

2010

5B

2012
  • Lead
    • Source Unknown

13 Miles

2006

5B

2005
  • Selenium
    • Source Unknown

13 Miles

2010

5A

2021
  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

13 Miles

1996

5B

2008


4

Calleguas Creek Reach 2 (estuary to Potrero Rd- was Calleguas Creek Reaches 1 and 2 on 1998 303d list)

River & Stream

40312000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

4.3 Miles

1996

5B

2003
  • ChemA
    • Agriculture-storm runoff

4.3 Miles

2018

5B

2006
    Historical use of pesticides and lubricants.
  • Chlordane
    • Source Unknown

4.3 Miles

1800

5B

2006
  • Copper
    • Nonpoint Source

4.3 Miles

2018

5B

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • Nonpoint Source

4.3 Miles

1996

5B

2005
  • Dieldrin
    • Source Unknown

4.3 Miles

2006

5B

2006
  • Endosulfan
    • Agriculture-storm runoff

4.3 Miles

1988

5B

2006
  • Indicator Bacteria
    • Source Unknown

4.3 Miles

2014

5A

2006
    Area affected is at the mouth of the creek.
  • PCBs (Polychlorinated biphenyls)
    • Nonpoint Source
    • Point Source

4.3 Miles

2018

5B

2005
  • Sedimentation/Siltation
    • Source Unknown

4.3 Miles

2002

5A

2005
  • Toxaphene
    • Nonpoint Source

4.3 Miles

1800

5B

2005
  • Toxicity
    • Nonpoint Source
    • Point Source

4.3 Miles

2014

5B

2005
  • Trash
    • Source Unknown

4.3 Miles

2010

5A

2021


4

Calleguas Creek Reach 3 (Potrero Road upstream to confluence with Conejo Creek on 1998 303d list)

River & Stream

40312000  /  18070103
  • Ammonia
    • Source Unknown

3.5 Miles

1996

5B

2003
  • Chlordane
    • 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)
    • Source Unknown

3.5 Miles

1996

5B

2006
  • Dieldrin
    • Source Unknown

3.5 Miles

2006

5B

2006
  • Indicator Bacteria
    • Source Unknown

3.5 Miles

2014

5A

2027
  • Nitrate and Nitrite
    • Nonpoint Source
    • Point Source

3.5 Miles

1996

5B

2003
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

3.5 Miles

1996

5B

2006
  • Sedimentation/Siltation
    • Source Unknown

3.5 Miles

2002

5A

2015
  • 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
    • Source Unknown

3.5 Miles

1988

5B

2019
  • Trash
    • Source Unknown

3.5 Miles

2010

5A

2021


4

Calleguas Creek Reach 4 (was Revolon Slough Main Branch: Mugu Lagoon to Central Avenue on 1998 303d list)

River & Stream

40311000  /  18070103
  • ChemA (tissue)
    • Agriculture-storm runoff

7.2 Miles

1996

5B

2006
    Historical use of pesticides and lubricants.
  • Chlordane (tissue & sediment)
    • Nonpoint Source

7.2 Miles

2016

5B

2005
  • Chlorpyrifos (tissue)
    • Nonpoint Source

7.2 Miles

2016

5B

2005
    Chlorpyrifos also exceeds in water.
  • Diazinon
    • Source Unknown

7.2 Miles

2006

5B

2006
  • Dieldrin (tissue)
    • Nonpoint Source

7.2 Miles

2006

5B

2005
  • Endosulfan (tissue & sediment)
    • Agriculture-storm runoff

7.2 Miles

2006

5B

2006
  • Fecal Coliform
    • Source Unknown

7.2 Miles

2016

5A

2006
  • Nitrate as Nitrate (NO3)
    • Nonpoint Source
    • Point Source

7.2 Miles

1996

5B

2003
  • Nitrogen
    • Nonpoint Source

7.2 Miles

2002

5B

2003
  • PCBs (Polychlorinated biphenyls) (tissue)
    • Nonpoint Source

7.2 Miles

2016

5B

2005
  • Sedimentation/Siltation
    • Source Unknown

7.2 Miles

2002

5A

2015
  • Selenium
    • Nonpoint Source

7.2 Miles

2002

5B

2007
  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • Source Unknown

7.2 Miles

2014

5B

2005
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

7.2 Miles

2016

5B

2005
  • Toxicity
    • Source Unknown

7.2 Miles

1996

5B

2005
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

7.2 Miles

2002

5B

2008


4

Calleguas Creek Reach 5 (was Beardsley Channel on 1998 303d list)

River & Stream

40311000  /  18070103
  • ChemA (tissue)
    • Agriculture-storm runoff

4.3 Miles

1996

5B

2006
  • Chlordane (tissue & sediment)
    • Nonpoint Source

4.3 Miles

2016

5B

2005
  • Chlorpyrifos (tissue)
    • Nonpoint Source

4.3 Miles

2016

5B

2006
    Chlorpyrifos also exceeds in water.
  • DDT (tissue & sediment)
    • Nonpoint Source

4.3 Miles

2016

5B

2005
  • Diazinon
    • Source Unknown

4.3 Miles

2006

5B

2006
  • Dieldrin (tissue)
    • Nonpoint Source

4.3 Miles

2016

5B

2005
  • Endosulfan (tissue & sediment)
    • Agriculture-storm runoff

4.3 Miles

2016

5B

2006
  • Nitrogen
    • Nonpoint Source

4.3 Miles

2002

5B

2003
  • PCBs (Polychlorinated biphenyls) (tissue)
    • Nonpoint Source

4.3 Miles

2016

5B

2005
  • Sedimentation/Siltation
    • Source Unknown

4.3 Miles

2002

5A

2005
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

4.3 Miles

2016

5B

2005
  • Toxicity
    • Nonpoint Source

4.3 Miles

1996

5B

2006
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

4.3 Miles

2002

5B

2008


4

Calleguas Creek Reach 6 ( was Arroyo Las Posas Reaches 1 and 2 on 1998 303d list)

River & Stream

40362000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

15 Miles

1996

5B

2003
  • Chlordane
    • 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
    • Source Unknown

15 Miles

2006

5B

2006
  • DDT (sediment)
    • Nonpoint Source

15 Miles

2016

5B

2006
  • Diazinon
    • Source Unknown

15 Miles

2006

5B

2006
  • Dieldrin
    • Source Unknown

15 Miles

2006

5B

2006
  • Indicator Bacteria
    • Source Unknown

15 Miles

2014

5A

2027
  • 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
  • Sedimentation/Siltation
    • Source Unknown

15 Miles

2002

5A

2005
  • 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
  • Toxicity
    • Source Unknown

15 Miles

1996

5B

2006


4

Calleguas Creek Reach 7 (was Arroyo Simi Reaches 1 and 2 on 1998 303d list)

River & Stream

40367000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

14 Miles

1996

5B

2003
  • 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
  • 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
    • Source Unknown

14 Miles

2006

5B

2006
  • Diazinon
    • Source Unknown

14 Miles

2006

5B

2006
  • Indicator Bacteria
    • Source Unknown

14 Miles

2002

5A

2019
  • Organophosphorus Pesticides
    • Agriculture
    • Municipal Point Sources

14 Miles

1996

5B

2006
  • Sedimentation/Siltation
    • Source Unknown

14 Miles

2002

5A

2006
  • 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
    • Source Unknown

14 Miles

1996

5B

2006
  • Trash
    • Source Unknown

14 Miles

2010

5A

2021


4

Calleguas Creek Reach 8 (was Tapo Canyon Reach 1)

River & Stream

40366000  /  18070103
  • Boron
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

7.2 Miles

2002

5B

2008
  • Chlordane
    • Source Unknown

7.2 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

7.2 Miles

2002

5B

2008
  • Chlorpyrifos
    • Source Unknown

7.2 Miles

2006

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

7.2 Miles

1996

5B

2006
  • Diazinon
    • Source Unknown

7.2 Miles

2002

5B

2006
  • Dieldrin
    • Source Unknown

7.2 Miles

2006

5B

2006
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

7.2 Miles

1996

5B

2006
  • Sedimentation/Siltation
    • Source Unknown

7.2 Miles

2002

5A

2015
  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

7.2 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

7.2 Miles

2002

5B

2008
  • Toxaphene
    • Source Unknown

7.2 Miles

1988

5B

2006


4

Calleguas Creek Reach 9A (was lower part of Conejo Creek Reach 1 on 1998 303d list)

River & Stream

40312000  /  18070103
  • ChemA (tissue)
    • Agriculture-storm runoff

1.7 Miles

1996

5B

2006
  • Chlordane (tissue)
    • Nonpoint Source

1.7 Miles

2016

5B

2006
    Historical use of pesticides and lubricants.
  • Chlorpyrifos
    • Source Unknown

1.7 Miles

2006

5B

2006
  • DDT (tissue)
    • Nonpoint Source

1.7 Miles

2016

5B

2005
  • Diazinon
    • Source Unknown

1.7 Miles

2006

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
    • Source Unknown

1.7 Miles

2014

5A

2027
  • 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
    • Source Unknown

1.7 Miles

2018

5B

2003
  • PCBs (Polychlorinated biphenyls) (tissue)
    • Nonpoint Source

1.7 Miles

2016

5B

2005
    Historical use of pesticides and lubricants.
  • Sulfates
    • Source Unknown

1.7 Miles

2002

5B

2008
  • 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 (tissue & sediment)
    • Nonpoint Source

1.7 Miles

2016

5B

2005
  • Toxicity
    • Source Unknown

1.7 Miles

1996

5B

2006
  • Trash
    • Source Unknown

1.7 Miles

2010

5A

2021


4

Calleguas Creek Reach 9B (was part of Conejo Creek Reaches 1 and 2 on 1998 303d list)

River & Stream

40363000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

6.2 Miles

1996

5B

2003
  • ChemA (tissue)
    • Agriculture-storm runoff

6.2 Miles

1996

5B

2006
  • Chlordane
    • Source Unknown

6.2 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

6.2 Miles

2002

5B

2008
  • Chlorpyrifos
    • Source Unknown

6.2 Miles

2006

5B

2006
  • DDT (tissue)
    • Nonpoint Source

6.2 Miles

2016

5B

2006
  • Diazinon
    • Source Unknown

6.2 Miles

2006

5B

2006
  • Dieldrin
    • Source Unknown

6.2 Miles

2006

5B

2006
  • Endosulfan (tissue)
    • Agriculture-storm runoff

6.2 Miles

2016

5B

2006
  • Indicator Bacteria
    • Source Unknown

6.2 Miles

2010

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

6.2 Miles

1996

5B

2006
  • Sulfates
    • Source Unknown

6.2 Miles

2002

5B

2008
  • Total Dissolved Solids
    • Source Unknown

6.2 Miles

2002

5B

2008
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

6.2 Miles

2016

5B

2006
  • Toxicity
    • Nonpoint Source
    • Point Source

6.2 Miles

1996

5B

2006
  • Trash
    • Source Unknown

6.2 Miles

2010

5A

2021


4

Calleguas Creek Reach 10 (Conejo Creek (Hill Canyon)-was part of Conejo Crk Reaches 2 & 3, and lower Conejo Crk/Arroyo Conejo N Fk on 1998 303d list)

River & Stream

40364000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

3 Miles

1996

5B

2003
  • ChemA (tissue)
    • Agriculture-storm runoff

3 Miles

1996

5B

2006
  • Chlordane
    • Source Unknown

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

3 Miles

2002

5B

2008
  • Chlorpyrifos
    • Source Unknown

3 Miles

2006

5B

2006
  • DDT (tissue)
    • Nonpoint Source

3 Miles

2016

5B

2006
  • Diazinon
    • Source Unknown

3 Miles

2006

5B

2006
  • Dieldrin
    • Source Unknown

3 Miles

2006

5B

2006
  • Indicator Bacteria
    • Source Unknown

3 Miles

2014

5A

2027
  • Malathion
    • Source Unknown

3 Miles

2014

5A

2029
  • Nitrogen, Nitrite
    • Nonpoint Source
    • Point Source

3 Miles

1996

5B

2003
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

3 Miles

1996

5B

2006
  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

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

3 Miles

2002

5B

2008
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

3 Miles

1988

5B

2006
  • Toxicity
    • Nonpoint Source
    • Point Source

3 Miles

1996

5B

2010
  • Trash
    • Source Unknown

3 Miles

2010

5A

2021


4

Calleguas Creek Reach 11 (Arroyo Santa Rosa, was part of Conejo Creek Reach 3 on 1998 303d list)

River & Stream

40365000  /  18070103
  • Ammonia
    • Nonpoint Source
    • Point Source

8.7 Miles

1996

5B

2003
  • ChemA (tissue)
    • Agriculture-storm runoff

8.7 Miles

1996

5B

2006
  • Chlordane
    • Source Unknown

8.7 Miles

1996

5B

2006
  • DDT (tissue)
    • Nonpoint Source

8.7 Miles

2016

5B

2006
  • Dieldrin
    • Source Unknown

8.7 Miles

2006

5B

2006
  • Endosulfan (tissue)
    • Agriculture-storm runoff

8.7 Miles

2016

5B

2006
  • Indicator Bacteria
    • Source Unknown

8.7 Miles

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

8.7 Miles

1996

5B

2006
  • Sedimentation/Siltation
    • Agriculture
    • Natural Sources

8.7 Miles

2002

5A

2005
  • Sulfates
    • Atmospheric Deposition
    • Domestic Use of Ground Water
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry weather discharge
    • Surface Runoff

8.7 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

8.7 Miles

2002

5B

2008
  • Toxaphene (tissue & sediment)
    • Nonpoint Source
    • Point Source

8.7 Miles

2016

5B

2006
  • Toxicity
    • Nonpoint Source
    • Point Source

8.7 Miles

1996

5B

2005


4

Canada Larga (Ventura River Watershed)

River & Stream

40210010  /  18070103
  • Indicator Bacteria
    • Source Unknown

8 Miles

2014

5A

2027
    Horse stables, land use, cattle, and wildlife may be sources.
  • Oxygen, Dissolved
    • Source Unknown

8 Miles

2014

5B

2013
  • Total Dissolved Solids
    • Source Unknown

8 Miles

2010

5A

2021


4

Casitas, Lake

Lake & Reservoir

40220032  /  18070101
  • Mercury
    • Natural Sources
    • Source Unknown

2069 Acres

2010

5A

2021


4

Castaic Lagoon

Lake & Reservoir

40351000  /  18070102
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

183 Acres

2014

5A

2027


4

Castaic Lake

Lake & Reservoir

40351000  /  18070102
  • Mercury
    • Source Unknown

2282 Acres

2010

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

2282 Acres

2014

5A

2027


4

Colorado Lagoon

Wetland, Tidal

40512000  /  18070104
  • Chlordane
    • Source Unknown

13 Acres

2014

5B

2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

13 Acres

2014

5B

2011
  • Dieldrin
    • Source Unknown

13 Acres

2014

5B

2011
  • Indicator Bacteria
    • Source Unknown

13 Acres

2006

5A

2019
  • Lead
    • Source Unknown

13 Acres

2014

5B

2011
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • Source Unknown

13 Acres

2014

5B

2011
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

13 Acres

2014

5B

2011
  • Toxicity
    • Source Unknown

13 Acres

2014

5B

2011
  • Zinc
    • Source Unknown

13 Acres

2014

5B

2011


4

Compton Creek

River & Stream

40515010  /  18070104
  • Benthic Community Effects
    • Source Unknown

8.5 Miles

2014

5A

2021
  • Copper
    • Source Unknown

8.5 Miles

1996

5B

2008
  • Indicator Bacteria
    • Source Unknown

8.5 Miles

2014

5A

2009
  • Lead
    • Source Unknown

8.5 Miles

1996

5B

2005
  • Trash
    • Nonpoint Source

8.5 Miles

2006

5B

2008
  • Zinc
    • Source Unknown

8.5 Miles

2014

5B

2008
  • pH
    • Nonpoint Source
    • Point Source

8.5 Miles

1996

5B

2004


4

Coyote Creek

River & Stream

40515010  /  18070104
  • Copper, Dissolved
    • Source Unknown

13 Miles

2016

5B

2007
  • Indicator Bacteria
    • Source Unknown

13 Miles

1996

5B

2016
  • Iron
    • Source Unknown

13 Miles

2014

5A

2027
  • Malathion
    • Source Unknown

13 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

13 Miles

2002

5A

2008
  • pH
    • Source Unknown

13 Miles

2006

5A

2019


4

Coyote Creek, North Fork

River & Stream

40515010  /  18070104
  • Indicator Bacteria
    • Source Unknown

5 Miles

2010

5B

2016
  • Selenium
    • Source Unknown

5 Miles

2010

5A

2021


4

Crystal Lake

Lake & Reservoir

40543000  /  18070106
  • Organic Enrichment/Low Dissolved Oxygen
    • Source Unknown

3.7 Acres

1998

5A

2019


4

Dominguez Channel (lined portion above Vermont Ave)

River & Stream

40351000  /  18070104
  • Copper
    • Source Unknown

6.7 Miles

1996

5B

2012
  • Indicator Bacteria
    • Source Unknown

6.7 Miles

2006

5A

2027
  • Lead
    • Source Unknown

6.7 Miles

1800

5B

2012
  • Toxicity
    • Source Unknown

6.7 Miles

2010

5B

2012
  • Zinc
    • Source Unknown

6.7 Miles

1800

5B

2012


4

Dominguez Channel Estuary (unlined portion below Vermont Ave)

Estuary

40512000  /  18070104
  • Benthic Community Effects
    • Source Unknown

140 Acres

1996

5B

2012
  • Benzo(a)anthracene
    • Agriculture-storm runoff

140 Acres

2006

5B

2012
  • Benzo(a)pyrene (3,4-Benzopyrene -7-d)
    • Source Unknown

140 Acres

1996

5B

2012
  • Chlordane (tissue)
    • Source Unknown

140 Acres

2016

5B

2012
  • Chrysene (C1-C4)
    • Source Unknown

140 Acres

2006

5B

2012
  • Copper
    • Other

140 Acres

2018

5B

2012
  • DDT (tissue & sediment)
    • Source Unknown

140 Acres

2016

5B

2012
  • Dieldrin (tissue)
    • Source Unknown

140 Acres

2016

5B

2012
  • Indicator Bacteria
    • Source Unknown

140 Acres

2014

5A

2007
  • Lead
    • Source Unknown

140 Acres

1800

5B

2012
  • PCBs (Polychlorinated biphenyls)
    • Agriculture
    • Agriculture-animal
    • Agriculture-grazing

140 Acres

1996

5B

2012
  • Phenanthrene
    • Source Unknown

140 Acres

2006

5B

2012
  • Pyrene
    • Source Unknown

140 Acres

2006

5B

2012
  • Toxicity
    • Source Unknown

140 Acres

2014

5B

2012


4

Downtown Shoreline Marina (part of San Pedro Bay Near/Off Shore Zones)

Bay & Harbor

40512000  /  18070104
  • Copper
    • Source Unknown

83 Acres

2014

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

83 Acres

2014

5A

2027


4

Dry Canyon Creek

River & Stream

40521000  /  18070104
  • Indicator Bacteria
    • Source Unknown

3.9 Miles

2014

5A

2027
  • Selenium, Total
    • Nonpoint Source

3.9 Miles

2016

5B

2005


4

Duck Pond Agricultural Drains/Mugu Drain/Oxnard Drain No 2

River & Stream

40311000  /  18070103
  • Bifenthrin
    • Source Unknown

12 Miles

2014

5A

2027
  • ChemA
    • Nonpoint Source

12 Miles

2018

5B

2006
  • Chlordane
    • Source Unknown

12 Miles

1800

5B

2006
  • Chlorpyrifos
    • Source Unknown

12 Miles

2014

5B

2006
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

12 Miles

2014

5B

2006
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

12 Miles

2014

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

12 Miles

1800

5B

2006
  • Nitrogen
    • Nonpoint Source

12 Miles

1996

5B

2003
  • Toxaphene
    • Source Unknown

12 Miles

1800

5B

2006
  • Toxicity
    • Nonpoint Source

12 Miles

1996

5B

2005


4

Elizabeth Lake

Lake & Reservoir

40351000  /  18070102
  • Eutrophic
    • Source Unknown

123 Acres

1996

5A

2019
  • Organic Enrichment/Low Dissolved Oxygen
    • Source Unknown

123 Acres

1998

5A

2019
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

123 Acres

1996

5B

2008
  • pH
    • Source Unknown

123 Acres

1996

5A

2019


4

Ellsworth Barranca

River & Stream

40321000  /  18070103
  • Chlorpyrifos
    • Source Unknown

10 Miles

2014

5A

2027


4

Fox Barranca (tributary to Calleguas Creek Reach 6)

River & Stream

40362000  /  18070103
  • Boron
    • Other

6.7 Miles

1998

5B

2008
  • Chlordane
    • Source Unknown

6.7 Miles

2014

5B

2006
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

6.7 Miles

2014

5A

2029
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

6.7 Miles

2014

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

6.7 Miles

2014

5B

2006
  • Nitrate and Nitrite
    • Nonpoint Source

6.7 Miles

1998

5B

2003
  • Sulfates
    • Other

6.7 Miles

1998

5B

2006
  • Total Dissolved Solids
    • Other

6.7 Miles

1998

5B

2006


4

Honda Barranca

River & Stream

40361000  /  18070103
  • Bifenthrin
    • Source Unknown

5.7 Miles

2014

5A

2027
  • Chlordane
    • Source Unknown

5.7 Miles

2014

5B

2006
  • Chlorpyrifos
    • Source Unknown

5.7 Miles

2014

5B

2006
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

5.7 Miles

2014

5B

2006
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

5.7 Miles

2014

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

5.7 Miles

2014

5B

2006


4

Hopper Creek

River & Stream

40341000  /  18070102
  • Sulfates
    • Source Unknown

13 Miles

2002

5A

2015
  • Total Dissolved Solids
    • Source Unknown

13 Miles

2220

5A

2019


4

Hueneme Drain

River & Stream

40311000  /  18070103
  • Escherichia coli (E. coli)
    • Source Unknown

1.7 Miles

2014

5A

2027
  • Trash
    • Source Unknown

1.7 Miles

2014

5C



4

Lake Hughes

Lake & Reservoir

40351000  /  18070102
  • Algae
    • Source Unknown

21 Acres

1996

5A

2019
  • Eutrophication
    • Source Unknown

21 Acres

2014

5A

2019
  • Odor
    • Source Unknown

21 Acres

1996

5A

2019
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

21 Acres

1996

5B

2008


4

Lake Lindero

Lake & Reservoir

40423000  /  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

15 Acres

1996

5B

2003
  • Chloride
    • Source Unknown

15 Acres

1996

5A

2019
  • 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

15 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

15 Acres

1996

5B

2003
  • Selenium
    • Source Unknown

15 Acres

1996

5A

2019
  • Specific Conductivity
    • Source Unknown

15 Acres

1996

5A

2019
  • Trash
    • Source Unknown

15 Acres

1996

5B

2008


4

Las Virgenes Creek

River & Stream

40422010  /  18070104
  • Benthic Community Effects
    • Source Unknown

12 Miles

2014

5B

2013
  • Indicator Bacteria
    • Nonpoint Source

12 Miles

2014

5B

2005
  • Invasive Species
    • Source Unknown

12 Miles

2010

5A

2021
  • 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
  • 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
    • Source Unknown

12 Miles

2002

5B

2013
  • Selenium
    • Source Unknown

12 Miles

1996

5A

2019
  • Trash
    • Source Unknown

12 Miles

1996

5B

2008


4

Legg Lake

Lake & Reservoir

40531000  /  18070105
  • Ammonia
    • Source Unknown

25 Acres

1996

5B

2012
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

25 Acres

2014

5A

2027
  • Odor
    • Source Unknown

25 Acres

1996

5B

2012
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

25 Acres

2014

5A

2027
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

25 Acres

1996

5B

2008
  • pH
    • Source Unknown

25 Acres

1996

5A

2019


4

Lincoln Park Lake

Lake & Reservoir

40515010  /  18070104
  • Ammonia
    • Source Unknown

3.8 Acres

1996

5B

2012
  • Eutrophic
    • Source Unknown

3.8 Acres

1996

5B

2012
  • Odor
    • Source Unknown

3.8 Acres

1996

5B

2012
  • Organic Enrichment/Low Dissolved Oxygen
    • Source Unknown

3.8 Acres

1998

5B

2012
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

3.8 Acres

2014

5A

2027
  • Trash
    • Source Unknown

3.8 Acres

1996

5B

2012


4

Lindero Creek Reach 1

River & Stream

40423000  /  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 Miles

1996

5B

2003
  • Benthic Community Effects
    • Source Unknown

3 Miles

2014

5A

2021
  • Indicator Bacteria
    • Nonpoint Source

3 Miles

2014

5B

2006
  • Invasive Species
    • Source Unknown

3 Miles

2010

5A

2021
  • 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 Miles

1996

5B

2003
  • Selenium
    • Source Unknown

3 Miles

1996

5A

2019
  • Trash
    • Source Unknown

3 Miles

1996

5B

2008


4

Lindero Creek Reach 2 (Above Lake)

River & Stream

40425000  /  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

4.5 Miles

1998

5B

2003
  • Indicator Bacteria
    • Source Unknown

4.5 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

4.5 Miles

1998

5B

2003
  • Selenium
    • Source Unknown

4.5 Miles

1998

5A

2019
  • Trash
    • Source Unknown

4.5 Miles

1998

5B

2008


4

Los Angeles River Estuary (Queensway Bay)

Estuary

40512000  /  18070104
  • Chlordane
    • Source Unknown

207 Acres

1800

5B

2012
  • DDT (sediment)
    • Source Unknown

207 Acres

2016

5B

2012
  • PCBs (Polychlorinated biphenyls) (sediment)
    • Source Unknown

207 Acres

2016

5A

2019
    Historical use of pesticides and lubricants.
  • Toxicity
    • Source Unknown

207 Acres

2014

5A

2019
  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

207 Acres

2006

5B

2008


4

Los Angeles River Reach 1 (Estuary to Carson Street)

River & Stream

40512000  /  18070104
  • Ammonia
    • Nonpoint Source
    • Point Source

3.4 Miles

2002

5B

2004
  • Cadmium
    • Source Unknown

3.4 Miles

2002

5B

2005
  • Copper, Dissolved
    • Nonpoint Source
    • Point Source

3.4 Miles

2016

5B

2005
  • Cyanide
    • Source Unknown

3.4 Miles

2006

5A

2019
  • Indicator Bacteria
    • Source Unknown

3.4 Miles

2014

5B

2003
  • Lead
    • Nonpoint Source
    • Point Source

3.4 Miles

1996

5B

2005
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

3.4 Miles

1998

5B

2004
  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

3.4 Miles

2006

5B

2008
  • Zinc, Dissolved
    • Nonpoint Source
    • Point Source

3.4 Miles

2016

5B

2005
  • pH
    • Nonpoint Source
    • Point Source

3.4 Miles

1996

5B

2003


4

Los Angeles River Reach 2 (Carson to Figueroa Street)

River & Stream

40515010  /  18070104
  • Ammonia
    • Nonpoint Source
    • Point Source

19 Miles

1996

5B

2004
  • Copper
    • Source Unknown

19 Miles

2006

5B

2005
  • Indicator Bacteria
    • Source Unknown

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

2019
  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

19 Miles

1996

5B

2008


4

Los Angeles River Reach 3 (Figueroa St. to Riverside Dr.)

River & Stream

40521000  /  18070104
  • Ammonia
    • Nonpoint Source
    • Point Source

7.9 Miles

1996

5B

2004
  • Copper
    • Source Unknown

7.9 Miles

2006

5B

2008
  • Indicator Bacteria
    • Source Unknown

7.9 Miles

2014

5B

2012
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

7.9 Miles

1996

5B

2004
  • Toxicity
    • Source Unknown

7.9 Miles

2014

5A

2027
  • 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

40521000  /  18070105
  • Indicator Bacteria
    • Source Unknown

11 Miles

2014

5A

2019
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

11 Miles

1996

5B

2004
  • Toxicity
    • Source Unknown

11 Miles

2014

5A

2027
  • 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

40521000  /  18070105
  • Ammonia
    • Source Unknown

1.9 Miles

1996

5B

2004
  • Benthic Community Effects
    • Source Unknown

1.9 Miles

2014

5A

2025
  • Copper
    • Source Unknown

1.9 Miles

2006

5B

2005
  • Lead
    • Source Unknown

1.9 Miles

2006

5B

2005
  • Nutrients (Algae)
    • Nonpoint Source
    • Point Source

1.9 Miles

1996

5B

2004
  • Oil
    • Source Unknown

1.9 Miles

1996

5A

2019
  • Toxicity
    • Source Unknown

1.9 Miles

2014

5A

2027
  • 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

40521000  /  18070105
  • Copper
    • Source Unknown

7 Miles

2014

5B

2008
  • Indicator Bacteria
    • Source Unknown

7 Miles

2014

5B

2012
  • Selenium
    • Source Unknown

7 Miles

1992

5B

2005
  • Toxicity
    • Source Unknown

7 Miles

2014

5A

2027


4

Los Cerritos Channel

Wetland, Tidal

40515010  /  18070104
  • Ammonia
    • Source Unknown

30 Acres

2002

5A

2015
  • Bis(2ethylhexyl)phthalate (DEHP)
    • Source Unknown

30 Acres

2006

5A

2019
  • Chlordane (sediment)
    • Source Unknown

30 Acres

2016

5A

2019
  • Copper
    • Source Unknown

30 Acres

2002

5A

2019
  • Indicator Bacteria
    • Source Unknown

30 Acres

2014

5A

2019
  • Lead
    • Source Unknown

30 Acres

2002

5A

2019
  • Trash
    • Source Unknown

30 Acres

2006

5A

2019
  • Zinc
    • Source Unknown

30 Acres

2002

5A

2019
  • pH
    • Source Unknown

30 Acres

2018

5A

2021


4

Machado Lake (Harbor Park Lake)

Lake & Reservoir

40512000  /  18070104
  • Algae
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

45 Acres

1996

5B

2009
  • Ammonia
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

45 Acres

1996

5B

2009
  • ChemA
    • Source Unknown

45 Acres

2014

5B

2012
  • Chlordane (tissue)
    • Source Unknown

45 Acres

2016

5B

2012
  • DDT (tissue)
    • Source Unknown

45 Acres

2016

5B

2012
    Fish Consumption Advisory.
  • Dieldrin (tissue)
    • Source Unknown

45 Acres

2016

5B

2012
  • Eutrophic
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

45 Acres

1992

5B

2009
  • Odor
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

45 Acres

1996

5B

2009
  • PCBs (Polychlorinated biphenyls) (tissue)
    • Other

45 Acres

2016

5A

2019
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

45 Acres

1996

5B

2008


4

Malibou Lake

Lake & Reservoir

40424000  /  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

40 Acres

1996

5B

2003
  • Dieldrin
    • Source Unknown

40 Acres

2014

5A

2027
  • 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

40 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

40 Acres

1998

5B

2003


4

Malibu Creek

River & Stream

40421000  /  18070104
  • Benthic Community Effects
    • Source Unknown

11 Miles

2014

5B

2013
  • Fish Barriers (Fish Passage)
    • Source Unknown

11 Miles

1996

5A

2019
  • Indicator Bacteria
    • Nonpoint Source
    • Point Source

11 Miles

2014

5B

2002
  • Invasive Species
    • Source Unknown

11 Miles

2010

5A

2021
  • 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

11 Miles

1996

5B

2003
  • 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

11 Miles

1996

5B

2003
  • Sedimentation/Siltation
    • Source Unknown

11 Miles

2002

5B

2013
  • Selenium
    • Source Unknown

11 Miles

2006

5A

2019
  • Sulfates
    • Source Unknown

11 Miles

2006

5A

2019
  • Toxicity
    • Source Unknown

11 Miles

2010

5A

2027
  • Trash
    • Nonpoint Source

11 Miles

1996

5B

2009


4

Malibu Lagoon

Estuary

40421000  /  18070104
  • Benthic Community Effects
    • Source Unknown

15 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

15 Acres

1998

5B

2003
  • Indicator Bacteria
    • Nonpoint Source
    • Point Source

15 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

15 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

15 Acres

1998

5B

2006
  • pH
    • Source Unknown

15 Acres

2002

5A

2006
    Possible sources might be septic systems, storm drains, and birds.


4

Marina del Rey Harbor - Back Basins

Bay & Harbor

40517000  /  18070104
  • Chlordane
    • Nonpoint Source

391 Acres

2018

5B

2005
  • Copper
    • Source Unknown

391 Acres

1800

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

391 Acres

1800

5A

2005
    A USEPA-approved TMDL has made a finding of non-impairment for this pollutant.
  • Dieldrin
    • Source Unknown

391 Acres

1800

5A

2005
    A USEPA-approved TMDL has made a finding of non-impairment for this pollutant.
  • Indicator Bacteria
    • Nonpoint Source

391 Acres

2006

5B

2004
  • Lead
    • Nonpoint Source

391 Acres

2018

5B

2006
  • Oxygen, Dissolved
    • Source Unknown

391 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Nonpoint Source

391 Acres

2018

5B

2006
    Historical use of pesticides, storm water runoff/aerial deposition from urban areas. Shellfish harvesting advisory for PCBs in tissue.
  • Toxicity
    • Nonpoint Source

391 Acres

2014

5B

2005
  • Zinc
    • Nonpoint Source

391 Acres

2018

5B

2006


4

McCoy Canyon Creek

River & Stream

40521000  /  18070104
  • Indicator Bacteria
    • Source Unknown

4 Miles

2014

5A

2027
  • Nitrate
    • Source Unknown

4 Miles

2002

5B

2003
  • Nitrogen, Nitrate
    • Source Unknown

4 Miles

2002

5B

2003
  • Selenium, Total
    • Natural Sources
    • Urban Runoff/Storm Sewers

4 Miles

2016

5B

2005


4

McGrath Lake

Lake & Reservoir

40311000  /  18070103
  • Chlordane
    • Source Unknown

20 Acres

2014

5B

2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

20 Acres

2014

5B

2011
  • Dieldrin (sediment)
    • Source Unknown

20 Acres

2016

5A

2019
    Historical use of pesticides and lubricants, storm water runoff/aerial deposition from agricultural fields.
  • Indicator Bacteria
    • Source Unknown

20 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls) (sediment)
    • Source Unknown

20 Acres

2016

5A

2019
    Historical use of pesticides and lubricants, storm water runoff/aerial deposition from agricultural fields.
  • Toxicity
    • Source Unknown

20 Acres

2014

5B

2011


4

Medea Creek Reach 1 (Lake to Confl. with Lindero)

River & Stream

40424000  /  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

2.6 Miles

1996

5B

2003
  • Benthic Community Effects
    • Source Unknown

2.6 Miles

2014

5A

2029
  • Indicator Bacteria
    • Nonpoint Source

2.6 Miles

2014

5B

2006
  • Sedimentation/Siltation
    • Source Unknown

2.6 Miles

2002

5B

2013
  • Selenium
    • Source Unknown

2.6 Miles

1996

5A

2027
  • Trash
    • Source Unknown

2.6 Miles

1996

5B

2008


4

Medea Creek Reach 2 (Abv Confl. with Lindero)

River & Stream

40423000  /  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

5.4 Miles

1996

5B

2003
  • Benthic Community Effects
    • Source Unknown

5.4 Miles

2014

5A

2021
  • Indicator Bacteria
    • Nonpoint Source

5.4 Miles

2014

5B

2006
  • Invasive Species
    • Source Unknown

5.4 Miles

2010

5A

2021
  • Sedimentation/Siltation
    • Source Unknown

5.4 Miles

2002

5B

2013
  • Selenium
    • Source Unknown

5.4 Miles

1996

5A

2019
  • Trash
    • Source Unknown

5.4 Miles

1996

5B

2008


4

Munz Lake

Lake & Reservoir

40351000  /  18070102
  • Eutrophic
    • Source Unknown

6.6 Acres

1996

5A

2019
  • Trash
    • Agriculture-storm runoff
    • Nonpoint Source
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

6.6 Acres

1996

5B

2008


4

Ormond Beach

Coastal & Bay Shoreline

40311000  /  18070103
  • Indicator Bacteria
    • Source Unknown

3.1 Miles

2002

5A

2019


4

Ormond Beach Wetlands

Wetland, Tidal

40311000  /  18070103
  • Indicator Bacteria
    • Source Unknown

99 Acres

2014

5A

2027
  • Trash
    • Source Unknown

99 Acres

2014

5C

  • pH
    • Source Unknown

99 Acres

2014

5A

2027


4

Oxnard Drain

River & Stream

40311000  /  18070103
  • Escherichia coli (E. coli)
    • Source Unknown

3 Miles

2014

5A

2027
  • Nitrogen, Nitrate
    • Source Unknown

3 Miles

2014

5A

2029
  • Trash
    • Source Unknown

3 Miles

2014

5C

  • pH
    • Source Unknown

3 Miles

2014

5A

2027


4

Peninsula Beach

Coastal & Bay Shoreline

40311000  /  18070103
  • Indicator Bacteria
    • Source Unknown

0.15 Miles

2002

5A

2019
    Area affected is beach area north of South Jetty.


4

Piru Creek (from gaging station below Santa Felicia Dam to headwaters)

River & Stream

40342000  /  18070102
  • Chloride
    • Source Unknown

67 Miles

2006

5A

2019
  • Toxicity
    • Source Unknown

67 Miles

2014

5A

2027
  • pH
    • Source Unknown

67 Miles

2002

5A

2019


4

Point Mugu Beach

Coastal & Bay Shoreline

40311000  /  18070104
  • Indicator Bacteria
    • Source Unknown

0.36 Miles

2010

5A

2023


4

Pole Creek (trib to Santa Clara River Reach 3 )

River & Stream

40331000  /  18070102
  • Sulfates
    • Source Unknown

9 Miles

2002

5A

2019
  • Total Dissolved Solids
    • Source Unknown

9 Miles

2002

5A

2019


4

Port Hueneme Beach Park

Coastal & Bay Shoreline

40311000  /  18070103
  • Indicator Bacteria
    • Source Unknown

1.2 Miles

2010

5A

2023


4

Port Hueneme Harbor (Back Basins)

Bay & Harbor

40311000  /  18070103
  • Arsenic
    • Source Unknown

65 Acres

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

65 Acres

2014

5C

  • Dieldrin
    • Source Unknown

65 Acres

2014

5A

2027
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • Source Unknown

65 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

65 Acres

2014

5C



4

Port Hueneme Pier

Coastal & Bay Shoreline

40311000  /  18070103
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

0.33 Miles

2006

5A

2019


4

Potrero Canyon Creek

River & Stream

40425000  /  18070104
  • Oxygen, Dissolved
    • Source Unknown

0.95 Miles

2014

5A

2027


4

Puddingstone Reservoir

Lake & Reservoir

40552000  /  18070106
  • Chlordane
    • Source Unknown

243 Acres

2014

5A

2019
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

243 Acres

2014

5A

2019
  • Mercury
    • Source Unknown

243 Acres

2014

5A

2019
  • Organic Enrichment/Low Dissolved Oxygen
    • Source Unknown

243 Acres

1996

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

243 Acres

2014

5A

2019


4

Puente Creek

River & Stream

40515010  /  18070104
  • Indicator Bacteria
    • Source Unknown

5.8 Miles

2010

5A

2027
  • Selenium
    • Source Unknown

5.8 Miles

2010

5A

2021


4

Pyramid Lake

Lake & Reservoir

40342000  /  18070102
  • Chlordane
    • Source Unknown

1483 Acres

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

1483 Acres

2014

5A

2027
  • Dieldrin
    • Source Unknown

1483 Acres

2014

5A

2027
  • Mercury
    • Source Unknown

1483 Acres

2010

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

1483 Acres

2014

5A

2027


4

Rincon Beach

Coastal & Bay Shoreline

40100010  /  18070101
  • Indicator Bacteria
    • Onsite Wastewater Systems (Septic Tanks)

0.38 Miles

2002

5A

2020
    Area affected is 50 yards south of mouth of Rincon Creek.


4

Rincon Parkway Beach

Coastal & Bay Shoreline

40100011  /  18070101
  • Indicator Bacteria
    • Source Unknown

0.03 Miles

2014

5A

2027


4

Rio De Santa Clara/Oxnard Drain No. 3

River & Stream

40311000  /  18070103
  • Ammonia
    • Source Unknown

1.9 Miles

2014

5A

2029
  • ChemA (tissue)
    • Source Unknown

1.9 Miles

1996

5B

2011
  • Chlordane (tissue)
    • Source Unknown

1.9 Miles

2016

5B

2011
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

1.9 Miles

2014

5B

2011
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

1.9 Miles

2014

5B

2011
  • DDT (tissue)
    • Source Unknown

1.9 Miles

2016

5B

2011
  • Nitrogen
    • Major Municipal Point Source-dry and/or wet weather discharge

1.9 Miles

1996

5B

2003
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

1.9 Miles

2014

5B

2011
  • Toxaphene (tissue)
    • Source Unknown

1.9 Miles

2016

5A

2019
  • Toxicity
    • Source Unknown

1.9 Miles

2014

5B

2011


4

Rio Hondo Reach 1 (Confl. LA River to Snt Ana Fwy)

River & Stream

40515010  /  18070104
  • Copper
    • Nonpoint Source
    • Point Source

4.5 Miles

1996

5B

2005
  • Indicator Bacteria
    • Source Unknown

4.5 Miles

2014

5B

2012
  • Lead
    • Nonpoint Source
    • Point Source

4.5 Miles

1996

5B

2005
  • Toxicity
    • Source Unknown

4.5 Miles

2010

5A

2021
  • 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

40515010  /  18070104
  • Coliform Bacteria
    • Source Unknown

4.9 Miles

2016

5B

2012
  • Cyanide
    • Source Unknown

4.9 Miles

2010

5A

2021


4

Rio Hondo Reach 3 (above Spreading Grounds)

River & Stream

4412.310000  /  18070104
  • Indicator Bacteria
    • Source Unknown

8.1 Miles

2014

5B

2012
  • Iron
    • Source Unknown

8.1 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • Source Unknown

8.1 Miles

2014

5A

2027


4

San Antonio Creek (Tributary to Ventura River Reach 4)

River & Stream

40220023  /  18070101
  • Indicator Bacteria
    • Source Unknown

9.8 Miles

2010

5A

2021
  • Nitrogen
    • Source Unknown

9.8 Miles

2002

5B

2013
  • Total Dissolved Solids
    • Source Unknown

9.8 Miles

2010

5A

2023


4

San Buenaventura Beach

Coastal & Bay Shoreline

40210000  /  18070103
  • Indicator Bacteria
    • Source Unknown

1.8 Miles

1800

5A

2019


4

San Gabriel River Estuary

River & Stream

40516000  /  18070104
  • Copper
    • Source Unknown

3.4 Miles

1996

5B

2007
  • Dioxin
    • Source Unknown

3.4 Miles

2010

5A

2021
  • Indicator Bacteria
    • Source Unknown

3.4 Miles

2014

5B

2016
  • Nickel
    • Source Unknown

3.4 Miles

2010

5A

2021
  • Oxygen, Dissolved
    • Source Unknown

3.4 Miles

2010

5A

2021


4

San Gabriel River Reach 1 (Estuary to Firestone)

River & Stream

40515010  /  18070104
  • Temperature, water
    • Source Unknown

6.4 Miles

2014

5A

2027
  • pH
    • Source Unknown

6.4 Miles

1996

5A

2009


4

San Gabriel River Reach 2 (Firestone to Whittier Narrows Dam

River & Stream

40515010  /  18070104
  • Cyanide
    • Source Unknown

12 Miles

2010

5A

2021
  • Lead
    • Nonpoint Source
    • Point Source

12 Miles

1996

5B

2007
  • Temperature, water
    • Source Unknown

12 Miles

2014

5A

2027


4

San Gabriel River, East Fork

River & Stream

40543000  /  18070106
  • Benthic Community Effects
    • Source Unknown

5.9 Miles

2014

5A

2029
  • Trash
    • Nonpoint Source

5.9 Miles

1996

5B

2000


4

San Jose Creek Reach 1 (SG Confluence to Temple St.)

River & Stream

4405.200000,4405.510000  /  18070105
  • Ammonia
    • Nonpoint Source
    • Point Source

29 Miles

1996

5C

  • Indicator Bacteria
    • Source Unknown

29 Miles

2014

5B

2016
  • Total Dissolved Solids
    • Source Unknown

29 Miles

2010

5A

2021
  • Toxicity
    • Source Unknown

29 Miles

1996

5A

2019
  • pH
    • Source Unknown

29 Miles

2010

5A

2021


4

Sanjon Barranca Creek

River & Stream

40210000  /  18070101
  • Escherichia coli (E. coli)
    • Source Unknown

0.22 Miles

2014

5A

2027
  • Trash
    • Source Unknown

0.22 Miles

2014

5C



4

Santa Clara River Estuary

Estuary

40311000  /  18070103
  • Ammonia
    • Source Unknown

49 Acres

2014

5A

2027
  • ChemA
    • Source Unknown

49 Acres

1998

5B

2011
  • Indicator Bacteria
    • Source Unknown

49 Acres

2014

5B

2012
  • Toxaphene
    • Source Unknown

49 Acres

1998

5B

2011
  • Toxicity
    • Source Unknown

49 Acres

2010

5A

2019


4

Santa Clara River Reach 1 (Estuary to Hwy 101 Bridge)

River & Stream

4403.100000  /  18070103
  • Oxygen, Dissolved
    • Source Unknown

6.1 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

6.1 Miles

2006

5A

2019
  • Trash
    • Source Unknown

6.1 Miles

2014

5C

  • pH
    • Source Unknown

6.1 Miles

2014

5A

2027


4

Santa Clara River Reach 3 (Freeman Diversion to A Street)

River & Stream

40331000  /  18070103
  • Chloride
    • Nonpoint Source
    • Point Source

31 Miles

2002

5B

2010
  • Indicator Bacteria
    • Source Unknown

31 Miles

2014

5B

2012
  • Selenium
    • Source Unknown

31 Miles

2014

5A

2027
  • Total Dissolved Solids
    • Source Unknown

31 Miles

2002

5A

2015
  • Toxicity
    • Source Unknown

31 Miles

2010

5A

2021
  • Trash
    • Source Unknown

31 Miles

2014

5C



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
  • Chloride
    • Nonpoint Source
    • Point Source

8.7 Miles

2006

5B

2005
  • Indicator Bacteria
    • Source Unknown

8.7 Miles

2014

5B

2012
  • Iron
    • Source Unknown

8.7 Miles

2010

5A

2029
  • Trash
    • Source Unknown

8.7 Miles

2014

5C



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
  • Chloride
    • Nonpoint Source
    • Point Source

3.6 Miles

1998

5B

2005
    Chloride was relisted by USEPA in 2002.
  • Chlorpyrifos
    • Source Unknown

3.6 Miles

2006

5A

2029
  • Temperature, water
    • Source Unknown

3.6 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

3.6 Miles

2006

5A

2029


4

Santa Clara River Reach 11 (Piru Creek, from confluence with Santa Clara River Reach 4 to gaging station below Santa Felicia Dam)

River & Stream

40341000  /  18070102
  • Boron
    • Source Unknown

6.2 Miles

2006

5A

2019
  • Specific Conductance
    • Source Unknown

6.2 Miles

2010

5A

2021
  • Sulfates
    • Source Unknown

6.2 Miles

2006

5A

2019
  • Total Dissolved Solids
    • Source Unknown

6.2 Miles

2010

5A

2021


4

Santa Fe Dam Park Lake

Lake & Reservoir

40531000  /  18070105
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

20 Acres

2014

5A

2027
  • pH
    • Source Unknown

20 Acres

1996

5B

2012


4

Santa Monica Bay Offshore/Nearshore

Bay & Harbor

40513000  /  18070104
  • Arsenic
    • Source Unknown

146645 Acres

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

146645 Acres

2014

5B

2012
  • Mercury
    • Source Unknown

146645 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

146645 Acres

1800

5B

2012
  • Trash
    • Source Unknown

146645 Acres

2014

5B

2012


4

Santa Monica Canyon

River & Stream

40513000  /  18070104
  • Indicator Bacteria
    • Nonpoint Source

2.7 Miles

1996

5B

2003
  • Lead
    • Source Unknown

2.7 Miles

1996

5A

2019


4

Sawpit Creek

River & Stream

40531000  /  18070105
  • Bis(2ethylhexyl)phthalate (DEHP)
    • Source Unknown

3.9 Miles

2006

5A

2019
  • Indicator Bacteria
    • Source Unknown

3.9 Miles

2014

5A

2027


4

Sespe Creek (from 500 ft below confluence with Little Sespe Cr to headwaters)

River & Stream

40332020  /  18070102
  • Chloride
    • Source Unknown

54 Miles

2006

5A

2019
  • pH
    • Source Unknown

54 Miles

2006

5A

2019


4

South San Jose Creek (Los Angeles County)

River & Stream

40551000  /  18070106
  • Ammonia
    • Source Unknown

3.3 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

3.3 Miles

2014

5A

2027
  • pH
    • Source Unknown

3.3 Miles

2014

5A

2027


4

Surfers Point at Seaside

Coastal & Bay Shoreline

40210000  /  18070101
  • Indicator Bacteria
    • Source Unknown

0.4 Miles

2002

5A

2019
    Area affected is the end of the access path via a wooden gate.


4

Tapo Canyon

River & Stream

40341000  /  18070103
  • Chlordane
    • Source Unknown

4.1 Miles

2014

5A

2027
  • Chloride
    • Source Unknown

4.1 Miles

2014

5A

2027
  • DDD (Dichlorodiphenyldichloroethane)
    • Source Unknown

4.1 Miles

2014

5A

2027
  • DDE (Dichlorodiphenyldichloroethylene)
    • Source Unknown

4.1 Miles

2014

5A

2029
  • Malathion
    • Source Unknown

4.1 Miles

2014

5A

2027
  • Sulfates
    • Source Unknown

4.1 Miles

2014

5A

2027
  • Total Dissolved Solids
    • Source Unknown

4.1 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

4.1 Miles

2014

5A

2027


4

Timber Canyon

River & Stream

40331000  /  18070102
  • Chlorpyrifos
    • Source Unknown

5.4 Miles

2014

5A

2027


4

Topanga Canyon Creek

River & Stream

40411000  /  18070104
  • Lead
    • Source Unknown

8.6 Miles

1996

5A

2019


4

Torrance Carson Channel

River & Stream

40512000  /  18070104
  • Copper
    • Source Unknown

3.4 Miles

1996

5B

2012
  • Indicator Bacteria
    • Source Unknown

3.4 Miles

2014

5A

2007
  • Lead
    • Source Unknown

3.4 Miles

1996

5B

2012


4

Triunfo Canyon Creek Reach 1

River & Stream

40424000  /  18070104
  • Benthic Community Effects
    • Source Unknown

2.5 Miles

2014

5A

2029
  • Lead
    • Source Unknown

2.5 Miles

1996

5A

2019
  • Mercury
    • Source Unknown

2.5 Miles

1996

5A

2019
  • Sedimentation/Siltation
    • Source Unknown

2.5 Miles

2002

5A

2019


4

Triunfo Canyon Creek Reach 2

River & Stream

40424000  /  18070104
  • Benthic Community Effects
    • Source Unknown

3.3 Miles

2014

5A

2021
  • Lead
    • Source Unknown

3.3 Miles

1996

5A

2019
  • Mercury
    • Source Unknown

3.3 Miles

1996

5A

2019
  • Sedimentation/Siltation
    • Source Unknown

3.3 Miles

2002

5A

2019


4

Ventura Harbor: Ventura Keys

Bay & Harbor

40311000  /  18070103
  • Arsenic
    • Source Unknown

179 Acres

2014

5A

2027
  • Coliform Bacteria
    • Source Unknown

179 Acres

1996

5A

2019
  • Dieldrin
    • Source Unknown

179 Acres

2014

5A

2027
  • Indicator Bacteria
    • Source Unknown

179 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

179 Acres

2014

5A

2027


4

Ventura Marina Jetties

Coastal & Bay Shoreline

40311000  /  18070103
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

0.69 Miles

2006

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • Source Unknown

0.69 Miles

2006

5A

2019


4

Ventura River Estuary

River & Stream

40210011  /  18070101
  • Algae
    • Source Unknown

0.2 Miles

1998

5B

2013
  • Eutrophic
    • Source Unknown

0.2 Miles

1998

5B

2013
  • Indicator Bacteria
    • Source Unknown

0.2 Miles

2014

5A

2019
    Stables and horse property may be the sources.
  • Trash
    • Agriculture-storm runoff
    • Recreational and Tourism Activities (non-boating)
    • Urban Runoff/Storm Sewers

0.2 Miles

1998

5B

2008


4

Ventura River Reach 1 and 2 (Estuary to Weldon Canyon)

River & Stream

40210011  /  18070101
  • Algae
    • Source Unknown

4.5 Miles

1996

5A

2019
  • Benthic Community Effects
    • Source Unknown

4.5 Miles

2014

5A

2029


4

Ventura River Reach 3 (Weldon Canyon to Confl. w/ Coyote Cr)

River & Stream

40210011  /  18070101
  • Indicator Bacteria
    • Source Unknown

2.8 Miles

2010

5A

2021
  • Toxicity
    • Source Unknown

2.8 Miles

2014

5A

2027


4

Ventura River Reach 4 (Coyote Creek to Camino Cielo Rd)

River & Stream

40220021  /  18070101
  • Temperature, water
    • Source Unknown

19 Miles

2014

5A

2027


4

Walnut Creek Wash (Drains from Puddingstone Res)

River & Stream

40531000  /  18070106
  • Benthic Community Effects
    • Source Unknown

12 Miles

2014

5A

2012
  • Indicator Bacteria
    • Source Unknown

12 Miles

2010

5A

2027
  • pH
    • Source Unknown

12 Miles

1996

5A

2007


4

Westlake Lake

Lake & Reservoir

40425000  /  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

119 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

119 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

119 Acres

1996

5B

2003
  • Lead
    • Source Unknown

119 Acres

1996

5A

2019
  • 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

119 Acres

1996

5B

2003


4

Wheeler Canyon/Todd Barranca

River & Stream

40321000  /  18070102
  • Chlordane
    • Source Unknown

10 Miles

2014

5A

2027
  • Cypermethrin
    • Source Unknown

10 Miles

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • Source Unknown

10 Miles

2014

5A

2027
  • Nitrate and Nitrite
    • Nonpoint Source

10 Miles

1998

5B

2004
  • Sulfates
    • Source Unknown

10 Miles

2002

5A

2019
  • Total Dissolved Solids
    • Source Unknown

10 Miles

2002

5A

2019
  • Toxaphene
    • Source Unknown

10 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

10 Miles

2014

5A

2027


4

Wildlife Lake

Lake & Reservoir

40521000  /  18070105
  • Ammonia
    • Source Unknown

15 Acres

2014

5B

2004
  • Oxygen, Dissolved
    • Source Unknown

15 Acres

2014

5A

2027


4

Wilmington Drain

River & Stream

40342000  /  18070104
  • Indicator Bacteria
    • Source Unknown

0.56 Miles

2014

5A

2007


5

Agatha Canal (Merced County)

River & Stream

54120000  /  18040001
  • Selenium
    • Source Unknown

2.5 Miles

2010

5B

2000
  • pH
    • Source Unknown

2.5 Miles

2010

5A

2021


5

Almanor Lake

Lake & Reservoir

51841000  /  18020121
  • Mercury
    • Source Unknown

25314 Acres

2010

5A

2027


5

Amador Lake

Lake & Reservoir

53240041  /  18040012
  • Mercury
    • Source Unknown

299 Acres

2014

5A

2027
  • pH (high)
    • Source Unknown

299 Acres

2010

5A

2021


5

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

River & Stream

51921000  /  18020109
  • Bifenthrin
    • Source Unknown

27 Miles

2014

5A

2027
  • Indicator Bacteria
    • Source Unknown

27 Miles

2014

5A

2027
  • Mercury
    • Source Unknown

27 Miles

1990

5A

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

27 Miles

2010

5A

2021
  • Pyrethroids
    • Source Unknown

27 Miles

2014

5A

2027
  • Toxicity
    • Source Unknown

27 Miles

2014

5A

2021


5

American River, North Fork

River & Stream

51421010  /  18020128
  • Mercury
    • Source Unknown

71 Miles

2010

5A

2027
    This listing is from North Fork Dam to Folsom Lake.


5

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

River & Stream

51432060  /  18020129
  • Mercury
    • Source Unknown

37 Miles

2006

5A

2021


5

Anderson Creek (Shasta County)

River & Stream

50810000  /  18020101
  • Indicator Bacteria
    • Source Unknown

16 Miles

2014

5A

2023


5

Arcade Creek

River & Stream

51921000  /  18020111
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

9.9 Miles

1998

5B

2004
  • Copper
    • Source Unknown

9.9 Miles

2002

5A

2021
  • Diazinon
    • Urban Runoff/Storm Sewers

9.9 Miles

1998

5B

2004
  • Malathion
    • Source Unknown

9.9 Miles

2010

5A

2021
  • Pyrethroids
    • Source Unknown

9.9 Miles

2010

5B

2019
  • Toxicity
    • Source Unknown

9.9 Miles

2014

5A

2021


5

Ash Creek, Upper

River & Stream

52664024  /  18020002
  • Indicator Bacteria
    • Source Unknown

19 Miles

2014

5A

2021
  • pH
    • Source Unknown

19 Miles

2010

5A

2021


5

Avena Drain

River & Stream

6531.400000  /  18040002
  • Ammonia
    • Sour