Statewide CATEGORY 5 Draft 2020 Integrated Report (CWA Section 303(d) List / 305(b) Report)
June 4, 2021
2020 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***

Region 1

Big River Beach at Mendocino Bay

Coastal & Bay Shoreline

1113.300405  /  18010108
  • Indicator Bacteria
    • A Source Unknown

3.9 Miles

2010

5A

2022


Region 1

Bodega HU, Bodega Harbor HA

Bay & Harbor

11522000  /  18010111
  • Invasive Species
    • A Source Unknown

810 Acres

2006

5A

2025


Region 1

Bodega HU, Estero Americano HA, Americano Creek

River & Stream

11530000  /  18010111
  • Nutrients
    • A Source Unknown

38 Miles

1996

5A

2025


Region 1

Bodega HU, Estero Americano HA, estuary

Estuary

11530012  /  18010111
  • Nutrients
    • A Source Unknown

199 Acres

1996

5A

2025
  • Sedimentation/Siltation
    • A Source Unknown

199 Acres

1992

5A

2025


Region 1

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

River & Stream

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

87 Miles

2024

5A

2025
  • Sediment
    • A Source Unknown

87 Miles

2006

5A

2025


Region 1

Campbell Cove

Coastal & Bay Shoreline

1115.210000,1115.220000  /  18010111
  • Indicator Bacteria
    • A Source Unknown

0.24 Miles

2006

5A

2022


Region 1

Caspar Headlands State Beach

Coastal & Bay Shoreline

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

0.19 Miles

2010

5A

2022


Region 1

Clam Beach (near Mad River mouth)

Coastal & Bay Shoreline

1109.100101  /  18010102
  • Indicator Bacteria
    • A Source Unknown

1.5 Miles

2012

5A

2022


Region 1

Clam Beach (near Strawberry Creek)

Coastal & Bay Shoreline

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

1.3 Miles

2006

5A

2022


Region 1

Copco Lake

Lake & Reservoir

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

977 Acres

2006

5B

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

977 Acres

2010

5A

2025
    This listing applies to Copco 1 Reservoir.


Region 1

Dead Lake

Lake & Reservoir

1103.110003  /  18010101
  • Mercury
    • A Source Unknown

25 Acres

2012

5A

2025


Region 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
    • A 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
    • A 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
    • A 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.


Region 1

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

River & Stream

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

2706 Miles

2010

5A

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


Region 1

Eel River HU, Middle Main HA

River & Stream

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

1588 Miles

2010

5A

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

1588 Miles

1994

5B

2005
  • Temperature, water
    • A Source Unknown

1588 Miles

1996

5B

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


Region 1

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

River & Stream

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

606 Miles

2010

5A

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
    • A 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
    • A 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
    • A 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.


Region 1

Eel River HU, South Fork HA

River & Stream

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

1525 Miles

2010

5A

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
    • A 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
    • A 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.


Region 1

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

River & Stream

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

3298 Miles

2010

5A

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


Region 1

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

Lake & Reservoir

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

1947 Acres

1998

5A

2012


Region 1

Eel River HU, Van Duzen River HA

River & Stream

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

1294 Miles

2010

5A

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


Region 1

Eureka Plain HU, Elk River Watershed, Lower Elk River and Martin Slough

River & Stream

1110.000401,1110.000402,1110.000700  / 
  • Indicator Bacteria
    • A 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


Region 1

Eureka Plain HU, Elk River Watershed, Upper Elk River

River & Stream

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

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


Region 1

Eureka Plain HU, Freshwater Creek

River & Stream

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

114 Miles

2010

5A

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


Region 1

Eureka Plain HU, Gannon Slough

River & Stream

1110.000502,1110.000503  /  18010105
  • Indicator Bacteria
    • A 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.


Region 1

Eureka Plain HU, Humboldt Bay

Bay & Harbor

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

16075 Acres

2006

5A

2031
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

16075 Acres

2002

5A

2025


Region 1

Eureka Plain HU, Jacoby Creek watershed

River & Stream

1110.000503,1110.000504  /  18010102
  • Aluminum
    • A 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
    • A 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.


Region 1

Eureka Plain HU, Jolly Giant Creek

River & Stream

1110.000501  /  18010102
  • Indicator Bacteria
    • A Source Unknown

2.1 Miles

2012

5A

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


Region 1

Eureka Plain HU, Salmon Creek

River & Stream

1110.000602,1110.000604,1110.000605  /  18010105
  • Aluminum
    • A 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
    • A 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.


Region 1

Greenwood State Beach

Coastal & Bay Shoreline

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

0.78 Miles

2014

5A

2022


Region 1

Hare Creek Beach

Coastal & Bay Shoreline

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

2.7 Miles

2010

5A

2022


Region 1

Iron Gate Reservoir

Lake & Reservoir

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

916 Acres

2006

5B

2010
  • Mercury
    • A Source Unknown

916 Acres

2012

5A

2025


Region 1

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

River & Stream

10590000  /  18010204
  • Arsenic
    • A Source Unknown

612 Miles

2014

5A

2032
  • Mercury
    • A 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


Region 1

Klamath River HU, Lower HA, Klamath Glen HSA

River & Stream

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

1299 Miles

2010

5A

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.


Region 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
    • A 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.


Region 1

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

River & Stream

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

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
    • A 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.


Region 1

Klamath River HU, Scott River HA

River & Stream

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

2444 Miles

2010

5A

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
    • A 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
    • A 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
    • A 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.


Region 1

Klamath River HU, Shasta River HA

River & Stream

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

1403 Miles

2010

5A

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


Region 1

Luffenholtz Beach

Coastal & Bay Shoreline

10810012  /  18010102
  • Indicator Bacteria
    • A Source Unknown

0.11 Miles

2006

5A

2022


Region 1

MacKerricher State Park (near Mill Creek)

Coastal & Bay Shoreline

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

5.1 Miles

2010

5A

2022


Region 1

Mackerricher State Park (near Virgin Creek)

Coastal & Bay Shoreline

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

5.1 Miles

2012

5A

2022


Region 1

Mad River HU, Mad River

River & Stream

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

1882 Miles

2010

5A

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
    • A Source Unknown

1882 Miles

2002

5A

2031
  • Turbidity
    • A Source Unknown

1882 Miles

1994

5A

2031


Region 1

Mad River HU, Norton Creek

River & Stream

1109.100200  /  18010102
  • Indicator Bacteria
    • A 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.


Region 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


Region 1

Mendocino Coast HU, Big River HA, Berry Gulch

River & Stream

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

28 Miles

2012

5A

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.


Region 1

Mendocino Coast HU, Big River HA, Big River

River & Stream

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

448 Miles

2012

5A

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


Region 1

Mendocino Coast HU, Garcia River HA, Garcia River

River & Stream

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

243 Miles

1994

5B

2002
  • 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.


Region 1

Mendocino Coast HU, Gualala River HA, Gualala River

River & Stream

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

685 Miles

2010

5A

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.


Region 1

Mendocino Coast HU, Navarro River HA

River & Stream

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

786 Miles

2012

5A

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


Region 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.


Region 1

Mendocino Coast HU, Noyo River HA, Pudding Creek

River & Stream

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

41 Miles

2012

5A

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.


Region 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.


Region 1

Moonstone County Park

Coastal & Bay Shoreline

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

0.93 Miles

2010

5A

2022


Region 1

Navarro River Beach

Coastal & Bay Shoreline

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

0.53 Miles

2014

5A

2022


Region 1

Old Home Beach

Coastal & Bay Shoreline

10810012  /  18010102
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2012

5A

2022


Region 1

Plaskett Lake

Lake & Reservoir

1111.730203  /  18010104
  • Mercury
    • A Source Unknown

6.3 Acres

2012

5A

2031


Region 1

Pudding Creek Beach

Coastal & Bay Shoreline

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

1.5 Miles

2010

5A

2022


Region 1

Redwood Creek HU, Redwood Creek

River & Stream

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

524 Miles

2010

5A

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
    • A 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.


Region 1

Russian Gulch

Coastal & Bay Shoreline

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

0.08 Miles

2014

5A

2022


Region 1

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

River & Stream

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

151 Miles

2010

5A

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

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


Region 1

Russian River HU, Lower Russian River HA, Guerneville HSA

River & Stream

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

249 Miles

2010

5A

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
    • A Source Unknown

249 Miles

2002

5A

2020
    This listing only applies to (1) the mainstem Russian River at Healdsburg Memorial Beach from the railroad bridge to the Highway 101 bridge, (2) the mainstem Russian River from Fife Creek to Dutch Bill Creek, and (3) the mainstem of Dutch Bill Creek.
  • 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
    • A 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


Region 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
    • A Source Unknown

50 Miles

2010

5A

2020
  • Oxygen, Dissolved
    • A 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.


Region 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.


Region 1

Russian River HU, Middle Russian River HA, Geyserville HSA

River & Stream

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

436 Miles

2010

5A

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

436 Miles

2010

5A

2020
    The listing only applies to Stream 1 on Fitch Mountain, which lies 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
    • A 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


Region 1

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

River & Stream

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

16 Miles

2012

5A

2020
  • Mercury
    • A Source Unknown

16 Miles

2012

5A

2025
  • Oxygen, Dissolved
    • A 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
    • A 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
    • A 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.


Region 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
    • A Source Unknown

116 Miles

2012

5A

2020
  • Oxygen, Dissolved
    • A 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.


Region 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.


Region 1

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

River & Stream

1114.110102,1114.230201  / 
  • Aluminum
    • A Source Unknown

5.3 Miles

2012

5A

2025
  • Manganese
    • A Source Unknown

5.3 Miles

2012

5A

2025
  • Oxygen, Dissolved
    • A 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
    • A 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.


Region 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  / 
  • 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.


Region 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  / 
  • 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.


Region 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
    • A Source Unknown

21 Miles

2012

5A

2020
  • Manganese
    • A 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.


Region 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
    • A Source Unknown

112 Miles

2012

5A

2020
  • 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.


Region 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
  • 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
    • A Source Unknown

528 Miles

2002

5A

2024


Region 1

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

Lake & Reservoir

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

2639 Acres

2002

5A

2012


Region 1

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

River & Stream

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

323 Miles

2010

5A

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.


Region 1

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

Lake & Reservoir

1114.320600  /  18010110
  • Mercury
    • A Source Unknown

1698 Acres

2006

5A

2012


Region 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.


Region 1

Russian River HU, Upper Russian River HA, Ukiah HSA

River & Stream

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

753 Miles

2010

5A

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
    • A 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
    • A Source Unknown

753 Miles

2002

5A

2024


Region 1

Ruth Lake

Lake & Reservoir

1109.400301,1109.400302  /  18010102
  • Mercury
    • A Source Unknown

1075 Acres

2010

5A

2025


Region 1

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

Lake & Reservoir

1114.220201  / 
  • Mercury
    • A Source Unknown

72 Acres

2014

5A

2031


Region 1

Shastina, Lake

Lake & Reservoir

1105.500707,1105.500708  /  18010207
  • Mercury
    • A Source Unknown

1681 Acres

2010

5A

2021


Region 1

Smith River HU, Delilah Creek

River & Stream

1103.110003,1103.110004  / 
  • Copper
    • A Source Unknown

2.2 Miles

2014

5A

2032


Region 1

Smith River HU, Elk Creek

River & Stream

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

3.2 Miles

2014

5A

2031


Region 1

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

River & Stream

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

1.4 Miles

2014

5A

2031


Region 1

Smith River HU, Tilas Slough

River & Stream

1103.110003  / 
  • Copper
    • A Source Unknown

1.6 Miles

2014

5A

2033


Region 1

Trinidad HU, Little River HA

River & Stream

1107.200302,1108.200001,1108.200002,1108.200003  /  18010102
  • Indicator Bacteria
    • A 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.


Region 1

Trinidad State Beach

Coastal & Bay Shoreline

1108.100002  /  18010102
  • Indicator Bacteria
    • A Source Unknown

0.99 Miles

2006

5A

2022


Region 1

Trinity Lake (was Claire Engle Lake)

Lake & Reservoir

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

15587 Acres

2006

5A

2019


Region 1

Trinity River HU, Lower Trinity HA

River & Stream

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

3931 Miles

2010

5A

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.


Region 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
    • A 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


Region 1

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

River & Stream

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

331 Miles

2006

5A

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.


Region 1

Van Damme State Park (beach area)

Coastal & Bay Shoreline

1113.400004  /  18010108
  • Indicator Bacteria
    • A Source Unknown

0.38 Miles

2010

5A

2022


Region 2

Anderson Reservoir

Lake & Reservoir

2205.300501,2205.300502  /  18050003
  • Mercury
    • A Source Unknown

1022 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1022 Acres

2006

5A

2019


Region 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
    • A Source Unknown

14 Miles

2010

5A

2021


Region 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
    • A Source Unknown

35 Miles

2010

5A

2021


Region 2

Bon Tempe Reservoir

Lake & Reservoir

2201.130204  /  18050005
  • Mercury
    • A Source Unknown

121 Acres

2006

5A

2013


Region 2

Briones Reservoir

Lake & Reservoir

20660011  /  18050002
  • Mercury
    • A Source Unknown

574 Acres

2014

5A

2029


Region 2

Butano Creek

River & Stream

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

19 Miles

1998

5A

2013
    Impairment to steelhead habitat.


Region 2

Calaveras Reservoir

Lake & Reservoir

2204.300408,2204.300409  /  18050004
  • Mercury
    • A Source Unknown

1503 Acres

2010

5A

2021


Region 2

Carquinez Strait

Estuary

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

526 Acres

2002

5A

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

526 Acres

2002

5A

2013
  • Dieldrin
    • A Source Unknown

526 Acres

1998

5A

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

526 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
    • A Source Unknown

526 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
    • A Source Unknown

526 Acres

1998

5A

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

526 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)
    • A Source Unknown

526 Acres

1998

5B

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

526 Acres

1998

5B

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

526 Acres

1998

5B

2016


Region 2

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

Bay & Harbor

20440010  /  18050004
  • Chlordane
    • A Source Unknown

40 Acres

1998

5A

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

40 Acres

1998

5A

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

40 Acres

1998

5A

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

40 Acres

1800

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

40 Acres

1998

5B

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

40 Acres

1998

5B

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

40 Acres

1990

5A

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).


Region 2

Codornices Creek

River & Stream

20330011  /  18050002
  • Temperature, water
    • A Source Unknown

2 Miles

2010

5A

2021
  • Trash
    • A Source Unknown

2 Miles

2010

5C

2029


Region 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
    • A Source Unknown

58 Miles

1998

5B

2007
  • Toxicity
    • A Source Unknown

58 Miles

2014

5A

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

58 Miles

2010

5C

2029


Region 2

Coyote Reservoir

Lake & Reservoir

20530032  /  18050003
  • Mercury
    • A Source Unknown

424 Acres

2014

5A

2029


Region 2

Del Valle Reservoir

Lake & Reservoir

2204.300203,2204.300204  /  18050004
  • Mercury
    • A Source Unknown

1012 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1012 Acres

2006

5A

2019


Region 2

Golden Hinde Beach

Coastal & Bay Shoreline

 /  18050005
  • Indicator Bacteria
    • A Source Unknown

0.13 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.


Region 2

Guadalupe Slough

River & Stream

2205.500400  /  18050003
  • Toxicity
    • A Source Unknown

6.7 Miles

2014

5A

2029
    The impairment is based on water column toxicity data.


Region 2

Henne, Lake

Lake & Reservoir

2206.500202  /  18050002
  • Mercury
    • A Source Unknown

17 Acres

2014

5A

2029


Region 2

Islais Creek

Estuary

2204.400102  /  18050004
  • Ammonia
    • A Source Unknown

20 Acres

2002

5A

2019
  • Chlordane
    • A Source Unknown

20 Acres

1800

5A

2019
  • Dieldrin
    • A Source Unknown

20 Acres

1800

5A

2019
  • Hydrogen Sulfide
    • A Source Unknown

20 Acres

2002

5A

2019
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

20 Acres

2014

5A

2019
  • Toxicity
    • A Source Unknown

20 Acres

2014

5A

2019


Region 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
    • A Source Unknown

8 Miles

2010

5A

2021
  • Trash
    • A Source Unknown

8 Miles

2010

5C

2029


Region 2

Kiteboard Beach (San Francisco Bay, Lower)

Coastal & Bay Shoreline

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

0.09 Miles

2014

5A

2029


Region 2

Lafayette Reservoir

Lake & Reservoir

2207.320102  /  18050001
  • Mercury
    • A Source Unknown

107 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

107 Acres

2006

5A

2019


Region 2

Lagunitas Creek

River & Stream

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

16 Miles

1992

5B

2007
  • Sedimentation/Siltation
    • A 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.


Region 2

Lake Chabot (Alameda Co)

Lake & Reservoir

2204.200300  /  18050004
  • Chlordane
    • A Source Unknown

308 Acres

2006

5A

2019
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

308 Acres

2006

5A

2019
  • Dieldrin
    • A Source Unknown

308 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

308 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

308 Acres

2006

5A

2019


Region 2

Lake Chabot (Solano Co)

Lake & Reservoir

20650080  /  18050002
  • Mercury
    • A Source Unknown

48 Acres

2014

5A

2029


Region 2

Lake Herman

Lake & Reservoir

2207.210301,2207.210302  /  18050001
  • Mercury
    • A Source Unknown

107 Acres

1992

5A

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


Region 2

Lake Merced

Lake & Reservoir

2202.100000  /  18050006
  • Oxygen, Dissolved
    • A Source Unknown

308 Acres

2014

5A

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

308 Acres

2002

5A

2019
    This listing was made by USEPA.


Region 2

Lake Merritt

Lake & Reservoir

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

148 Acres

2002

5A

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

148 Acres

1998

5A

2019


Region 2

Lexington Reservoir

Lake & Reservoir

20540020  /  18050003
  • Mercury
    • A Source Unknown

340 Acres

2014

5A

2029


Region 2

Los Gatos Creek, Lower

River & Stream

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

12 Miles

2014

5A

2031
    Lower Los Gatos Creek is the portion of the waterbody downstream of Lexington Reservoir.


Region 2

Lower Crystal Springs Reservoir

Lake & Reservoir

2204.400302,2204.400303  /  18050004
  • Mercury
    • A Source Unknown

583 Acres

2014

5A

2029


Region 2

Mission Creek

Estuary

2204.400102  /  18050004
  • Ammonia
    • A Source Unknown

1.3 Acres

2002

5A

2019
  • Chlordane
    • A Source Unknown

1.3 Acres

1800

5A

2013
  • Dieldrin
    • A Source Unknown

1.3 Acres

1800

5A

2013
  • Hydrogen Sulfide
    • A Source Unknown

1.3 Acres

2002

5A

2019
  • Lead
    • A Source Unknown

1.3 Acres

1800

5A

2019
  • Mercury
    • A Source Unknown

1.3 Acres

2002

5A

2019
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

1.3 Acres

2002

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1.3 Acres

1800

5B

2010
  • Silver
    • A Source Unknown

1.3 Acres

1800

5A

2019
  • Zinc
    • A Source Unknown

1.3 Acres

1800

5A

2019


Region 2

Mt. Diablo Creek

River & Stream

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

14 Miles

1998

5B

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

14 Miles

2010

5A

2021


Region 2

Napa River, Mare Island Strait

River & Stream

2206.100000  / 
  • Chlordane
    • A Source Unknown

3.8 Miles

2014

5A

2029
  • Dieldrin
    • A Source Unknown

3.8 Miles

2014

5A

2029
  • Mercury
    • A Source Unknown

3.8 Miles

2014

5B

2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3.8 Miles

2014

5B

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

3.8 Miles

2016

5A

2029


Region 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


Region 2

Nicasio Reservoir

Lake & Reservoir

 /  18050005
  • Mercury
    • A Source Unknown

862 Acres

1998

5A

2013


Region 2

Oakland Inner Harbor

Bay & Harbor

2204.200400  / 
  • Indicator Bacteria
    • A Source Unknown

448 Acres

2014

5A

2029


Region 2

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

Bay & Harbor

2204.200400  /  18050004
  • Chlordane
    • A Source Unknown

0.14 Acres

1998

5A

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

0.14 Acres

1998

5A

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

0.14 Acres

1998

5A

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

0.14 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
    • A Source Unknown

0.14 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
    • A Source Unknown

0.14 Acres

2006

5A

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

0.14 Acres

1992

5B

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

0.14 Acres

2016

5B

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

0.14 Acres

1990

5A

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
    • A Source Unknown

0.14 Acres

2014

5A

2019


Region 2

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

Bay & Harbor

2204.100000, 2204.200400  /  18050004
  • Chlordane
    • A Source Unknown

0.26 Acres

1998

5A

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

0.26 Acres

1800

5A

2019
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

0.26 Acres

1998

5A

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

0.26 Acres

1998

5A

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

0.26 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
    • A Source Unknown

0.26 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
    • A Source Unknown

0.26 Acres

2006

5A

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

0.26 Acres

1800

5A

2019
  • Mercury
    • A Source Unknown

0.26 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)
    • A Source Unknown

0.26 Acres

2016

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.26 Acres

1998

5B

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

0.26 Acres

1990

5A

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
    • A Source Unknown

0.26 Acres

1800

5A

2019


Region 2

Oiger Quarry Ponds

Lake & Reservoir

20530051  /  18050003
  • Mercury
    • A Source Unknown

69 Acres

2014

5A

2029


Region 2

Oyster Point Marina (San Francisco Bay, Lower)

Coastal & Bay Shoreline

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

0.31 Miles

2014

5A

2029


Region 2

Pacific Ocean at Pillar Point

Coastal & Bay Shoreline

2202.210002  /  18050006
  • Mercury
    • A Source Unknown

0.63 Miles

2006

5A

2019


Region 2

Pacific Ocean at Pillar Point Beach

Coastal & Bay Shoreline

2202.210002  /  18050006
  • Indicator Bacteria
    • A Source Unknown

0.85 Miles

2014

5A

2019


Region 2

Pacific Ocean at Venice Beach

Coastal & Bay Shoreline

2202.210002,2202.220001  /  18050006
  • Indicator Bacteria
    • A Source Unknown

0.38 Miles

2014

5A

2019


Region 2

Paradise Cove Beach (San Francisco Bay, Central)

Coastal & Bay Shoreline

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

0.16 Miles

2014

5A

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.


Region 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
    • A Source Unknown

14 Miles

2014

5A

2021
  • Toxicity
    • A Source Unknown

14 Miles

2010

5A

2021
  • Trash
    • A Source Unknown

14 Miles

2010

5C

2029


Region 2

Pescadero Creek

River & Stream

2202.400101,2202.400103,2202.400104,2202.400105,2202.400106,2202.400301  /  18050006
  • Sedimentation/Siltation
    • A 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.


Region 2

Petaluma River

River & Stream

2206.300200,2206.300400  /  18050002
  • Diazinon
    • A Source Unknown

22 Miles

2002

5A

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

22 Miles

1998

5A

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

22 Miles

1998

5A

2019
  • Sedimentation/Siltation
    • A Source Unknown

22 Miles

1998

5A

2019
  • Trash
    • A Source Unknown

22 Miles

2010

5C

2029


Region 2

Petaluma River (tidal portion)

River & Stream

2206.300400  /  18050002
  • Diazinon
    • A Source Unknown

1.8 Miles

2002

5A

2019
  • Nickel
    • A Source Unknown

1.8 Miles

2002

5A

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

1.8 Miles

2002

5A

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

1.8 Miles

2002

5A

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


Region 2

Pilarcitos Lake

Lake & Reservoir

2202.220003  /  18050006
  • Mercury
    • A Source Unknown

97 Acres

2014

5A

2029


Region 2

Pomponio Creek

River & Stream

2202.400200  /  18050006
  • Indicator Bacteria
    • A Source Unknown

6.9 Miles

2014

5A

2019


Region 2

Richardson Bay

Bay & Harbor

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

364 Acres

1998

5A

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

364 Acres

1998

5A

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

364 Acres

1998

5A

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

364 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
    • A Source Unknown

364 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
    • A Source Unknown

364 Acres

2014

5B

2009
  • Invasive Species
    • A Source Unknown

364 Acres

2006

5A

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

364 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)
    • A Source Unknown

364 Acres

1998

5B

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

364 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.


Region 2

Sacramento San Joaquin Delta

Estuary

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

582 Acres

1998

5A

2029
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

582 Acres

1998

5A

2013
  • Dieldrin
    • A Source Unknown

582 Acres

1998

5A

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

582 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
    • A Source Unknown

582 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
    • A Source Unknown

582 Acres

1998

5A

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

582 Acres

1998

5B

2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

582 Acres

1998

5B

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

582 Acres

1998

5B

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

582 Acres

1998

5B

2016


Region 2

San Francisco Bay, Central

Bay & Harbor

20312010  /  18050004
  • Chlordane
    • A Source Unknown

70992 Acres

1998

5A

2013
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

70992 Acres

1998

5A

2013
  • Dieldrin
    • A Source Unknown

70992 Acres

1998

5A

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

70992 Acres

1998

5B

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

70992 Acres

1990

5B

2016
  • Trash
    • A Source Unknown

70992 Acres

2010

5A

2021


Region 2

San Francisco Bay, Lower

Bay & Harbor

20410010  /  18050004
  • Chlordane
    • A Source Unknown

92274 Acres

1998

5A

2013
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

92274 Acres

1998

5A

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

92274 Acres

1998

5A

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

92274 Acres

2006

5A

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

92274 Acres

2010

5A

2021


Region 2

San Francisco Bay, South

Bay & Harbor

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

1360 Acres

1990

5A

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

1360 Acres

1998

5A

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

1360 Acres

1998

5A

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

1360 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
    • A Source Unknown

1360 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
    • A Source Unknown

1360 Acres

2006

5A

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

1360 Acres

1992

5B

2008
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1360 Acres

1992

5B

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

1360 Acres

1992

5B

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

1360 Acres

1998

5A

2021


Region 2

San Francisquito Creek

River & Stream

2205.500101,2205.500400  /  18050003
  • Diazinon
    • A 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
    • A Source Unknown

12 Miles

1998

5A

2013
    Impairment to steelhead habitat.
  • Trash
    • A Source Unknown

12 Miles

2010

5C

2029


Region 2

San Gregorio Creek

River & Stream

2202.300002,2202.300004  /  18050006
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

2019
  • Sedimentation/Siltation
    • A Source Unknown

11 Miles

1998

5A

2013
    Impairment to steelhead habitat.


Region 2

San Leandro Bay (part of SF Bay, Lower)

Bay & Harbor

2204.100000, 2204.200400  /  18050004
  • Chlordane
    • A Source Unknown

88 Acres

1998

5A

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

88 Acres

2024

5A

2029
  • Dieldrin
    • A Source Unknown

88 Acres

1998

5A

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

88 Acres

1998

5A

2019
  • Furan Compounds
    • A Source Unknown

88 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
    • A Source Unknown

88 Acres

2006

5A

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

88 Acres

2016

5A

2019
  • Mercury
    • A Source Unknown

88 Acres

1992

5B

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

88 Acres

2016

5A

2019
  • Pesticides (sediment)
    • A Source Unknown

88 Acres

2016

5A

2019
  • Zinc
    • A Source Unknown

88 Acres

1800

5A

2019


Region 2

San Mateo Creek, Lower

River & Stream

2204.400201,2204.400303,2204.400400  /  18050004
  • Toxicity
    • A 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.


Region 2

San Pablo Bay

Bay & Harbor

20610010  /  18050002
  • Chlordane
    • A Source Unknown

68349 Acres

1998

5A

2013
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

68349 Acres

1998

5A

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

68349 Acres

1998

5A

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

68349 Acres

2006

5A

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

68349 Acres

1998

5B

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

68349 Acres

1990

5B

2016


Region 2

San Pablo Reservoir

Lake & Reservoir

2206.600102  /  18050002
  • Chlordane
    • A Source Unknown

785 Acres

2006

5A

2019
  • Dieldrin
    • A Source Unknown

785 Acres

2006

5A

2019
  • Heptachlor epoxide
    • A Source Unknown

785 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

785 Acres

2002

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

785 Acres

2006

5A

2019
  • Toxaphene
    • A Source Unknown

785 Acres

2006

5A

2019


Region 2

San Vicente Creek

River & Stream

2202.210002  /  18050006
  • Indicator Bacteria
    • A Source Unknown

3.9 Miles

2014

5A

2019


Region 2

Shadow Cliffs Reservoir

Lake & Reservoir

20430080  /  18050004
  • Mercury
    • A Source Unknown

90 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

90 Acres

2006

5A

2019


Region 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


Region 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


Region 2

Stevens Creek

River & Stream

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

21 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

21 Miles

2006

5A

2019
  • Trash
    • A Source Unknown

21 Miles

2010

5C

2029


Region 2

Stevens Creek Reservoir

Lake & Reservoir

 /  18050003
  • Chlordane
    • A Source Unknown

83 Acres

2006

5A

2019
  • Dieldrin
    • A Source Unknown

83 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

83 Acres

2006

5A

2013
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

83 Acres

2006

5A

2019


Region 2

Suisun Bay

Bay & Harbor

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

3806 Acres

1998

5A

2029
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3806 Acres

1998

5A

2013
  • Dieldrin
    • A Source Unknown

3806 Acres

1998

5A

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

3806 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
    • A Source Unknown

3806 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
    • A Source Unknown

3806 Acres

2006

5A

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

3806 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)
    • A Source Unknown

3806 Acres

1998

5B

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

3806 Acres

1998

5B

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

3806 Acres

1990

5B

2016


Region 2

Suisun Creek

River & Stream

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

21 Miles

2014

5A

2021
  • Temperature, water
    • A Source Unknown

21 Miles

2010

5A

2021


Region 2

Suisun Marsh Wetlands

Wetland, Tidal

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

9984 Acres

2010

5B

2018
  • Nutrients
    • A Source Unknown

9984 Acres

1996

5A

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

9984 Acres

1996

5B

2018
  • Salinity/TDS/Chlorides
    • A Source Unknown

9984 Acres

1996

5A

2013
    Additional monitoring and assessment needed.


Region 2

Tomales Bay

Bay & Harbor

1115.300002, 1115.300002, 2201.110000, 2201.120301, 2201.120302, 2201.120303, 2201.130301, 2201.140000, 2201.210002, 2201.210002  /  18050005
  • Mercury
    • A Source Unknown

1297 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
    • A Source Unknown

1297 Acres

1992

5A

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

1297 Acres

1992

5B

2007
  • Sedimentation/Siltation
    • A Source Unknown

1297 Acres

1992

5A

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


Region 2

Upper San Leandro Reservoir

Lake & Reservoir

2204.200101,2204.200103  /  18050004
  • Mercury
    • A Source Unknown

758 Acres

2014

5A

2029


Region 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
    • A 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
    • A Source Unknown

16 Miles

2006

5B

2007
  • Sedimentation/Siltation
    • A 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.


Region 3

Alamo Creek

River & Stream

31230071  /  18060007
  • Toxicity
    • A Source Unknown

7.8 Miles

2014

5A

2023


Region 3

Alisal Creek (Monterey County)

River & Stream

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

13 Miles

2014

5B

2015
  • Bensulide
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B

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

13 Miles

2010

5B

2015
  • Chlorpyrifos
    • Agriculture

13 Miles

2020

5B

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

13 Miles

2020

5B

2018
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B

2018
  • Dimethoate
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Imidacloprid
    • No Source Analysis Available

13 Miles

2020

5A

2027
  • Imidacloprid guanidine
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Malathion
    • No Source Analysis Available

13 Miles

2020

5A

2025
  • Methomyl
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Nitrate
    • Agriculture

13 Miles

2002

5B

2015
  • Organophosphate Pesticides
    • Agriculture

13 Miles

2020

5B

2011
  • Oxyfluorfen
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B

2018
  • Sodium
    • A Source Unknown

13 Miles

2010

5A

2027
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

13 Miles

2014

5A

2035


Region 3

Alisal Slough (Monterey County)

River & Stream

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

11 Miles

2014

5B

2015
  • Diazinon
    • Agriculture

11 Miles

2010

5B

2011
  • Imidacloprid
    • No Source Analysis Available

11 Miles

2020

5A

2035
  • Lead
    • A Source Unknown

11 Miles

2020

5A

2035
  • Malathion
    • No Source Analysis Available

11 Miles

2014

5A

2025
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

11 Miles

2010

5B

2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

2014

5B

2023
  • Turbidity
    • No Source Analysis Available

11 Miles

2014

5A

2035


Region 3

Aptos Creek

River & Stream

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

8.6 Miles

2020

5A

2035
  • Indicator Bacteria
    • Collection System Failure
    • Natural Sources
    • Other Urban Runoff
    • Urban Runoff/Storm Sewers

8.6 Miles

2014

5B

2011
  • Lead
    • No Source Analysis Available

8.6 Miles

2020

5A

2035
  • Sedimentation/Siltation
    • A Source Unknown

8.6 Miles

1990

5A

2027


Region 3

Arana Gulch

River & Stream

3304.120501,3304.120503  /  18060001
  • Aluminum
    • No Source Analysis Available

4.8 Miles

2020

5A

2035
  • Chlorpyrifos
    • A Source Unknown

4.8 Miles

2010

5B

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

4.8 Miles

2010

5A

2035
  • Lead
    • No Source Analysis Available

4.8 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

4.8 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

4.8 Miles

2010

5A

2035


Region 3

Arroyo Burro Creek

River & Stream

3315.320003  /  18060013
  • Arsenic
    • No Source Analysis Available

6.3 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.3 Miles

2010

5A

2035
  • Lead
    • No Source Analysis Available

6.3 Miles

2010

5A

2035
  • Nitrate
    • No Source Analysis Available

6.3 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

6.3 Miles

2014

5A

2035
  • Selenium
    • No Source Analysis Available

6.3 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

6.3 Miles

2014

5A

2035
  • Urea
    • No Source Analysis Available

6.3 Miles

2020

5A

2035


Region 3

Arroyo De La Cruz Lagoon

River & Stream

3310.120003  / 
  • Copper
    • No Source Analysis Available

0.51 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

0.51 Miles

2014

5A

2035
  • Total Coliform
    • No Source Analysis Available

0.51 Miles

2020

5A

2035


Region 3

Arroyo Grande Creek (below Lopez Lake)

River & Stream

3310.310104,3310.310203,3310.310205,3310.310206  /  18060006
  • Aluminum
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Benthic Community Effects
    • A Source Unknown

13 Miles

2014

5A

2027
  • Cadmium
    • No Source Analysis Available

13 Miles

2010

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

13 Miles

2014

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

13 Miles

2010

5A

2035
  • Lead
    • No Source Analysis Available

13 Miles

2010

5A

2035
  • Molybdenum
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Nickel
    • No Source Analysis Available

13 Miles

2010

5A

2035
  • Nitrate
    • No Source Analysis Available

13 Miles

2010

5A

2035
  • Selenium
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

13 Miles

2014

5A

2035
  • Urea
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

13 Miles

2010

5A

2035


Region 3

Arroyo Paredon

River & Stream

3315.340003,3315.340004  /  18060013
  • Boron
    • A Source Unknown
    • Agricultural Return Flows

5.3 Miles

2006

5A

2035
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

5.3 Miles

2010

5A

2035
  • Copper
    • No Source Analysis Available

5.3 Miles

2010

5A

2035
  • Diazinon
    • Agriculture

5.3 Miles

2010

5B

2013
  • Fecal Coliform
    • A Source Unknown

5.3 Miles

2010

5A

2035
  • Lead
    • No Source Analysis Available

5.3 Miles

2010

5A

2035
  • Nickel
    • No Source Analysis Available

5.3 Miles

2010

5A

2035
  • Nitrate
    • Agriculture

5.3 Miles

2006

5B

2014
  • Oxygen, Dissolved
    • No Source Analysis Available

5.3 Miles

2014

5A

2035
  • Selenium
    • No Source Analysis Available

5.3 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown

5.3 Miles

2010

5A

2027
  • Specific Conductivity
    • No Source Analysis Available

5.3 Miles

2014

5A

2035
  • Temperature, water
    • No Source Analysis Available

5.3 Miles

2020

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

5.3 Miles

2014

5B

2013
  • pH
    • No Source Analysis Available

5.3 Miles

2010

5A

2035


Region 3

Arroyo Seco River

River & Stream

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

43 Miles

2010

5A

2035
    Impaired reach is from the confluence with Tassajara Creek downstream to the confluence with the Salinas River.
  • pH
    • No Source Analysis Available

43 Miles

2010

5A

2035


Region 3

Atascadero Creek (San Luis Obispo County)

River & Stream

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

5.5 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

5.5 Miles

2014

5A

2035
  • Toxicity
    • No Source Analysis Available

5.5 Miles

2020

5A

2035


Region 3

Atascadero Creek (Santa Barbara County)

River & Stream

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

5.7 Miles

2010

5A

2035
  • Benthic Community Effects
    • A Source Unknown

5.7 Miles

2014

5A

2027
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

5.7 Miles

2010

5A

2035
  • Enterococcus
    • A Source Unknown

5.7 Miles

2010

5A

2027
  • Manganese
    • No Source Analysis Available

5.7 Miles

2020

5A

2035
  • Nitrate
    • No Source Analysis Available

5.7 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

5.7 Miles

2014

5A

2035
  • Selenium
    • No Source Analysis Available

5.7 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown

5.7 Miles

2010

5A

2027
  • Temperature, water
    • A Source Unknown

5.7 Miles

2010

5A

2035
  • Total Dissolved Solids
    • No Source Analysis Available

5.7 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

5.7 Miles

2014

5A

2035
  • Urea
    • No Source Analysis Available

5.7 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

5.7 Miles

2010

5A

2035


Region 3

Beach Road Ditch

River & Stream

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

3.4 Miles

2010

5B

2018
  • Oxygen, Dissolved
    • A Source Unknown

3.4 Miles

2014

5A

2018
  • Turbidity
    • A Source Unknown

3.4 Miles

2010

5A

2023
  • pH
    • A Source Unknown

3.4 Miles

2010

5A

2027


Region 3

Bear Creek(Santa Cruz County)

River & Stream

3304.120101,3304.120203,3304.120300  /  18060001
  • Aluminum
    • No Source Analysis Available

6.4 Miles

2020

5A

2035
  • Lead
    • No Source Analysis Available

6.4 Miles

2020

5A

2035
  • Sedimentation/Siltation
    • Channel Erosion
    • Highway/Road/Bridge Construction
    • Logging Road Construction/Maintenance
    • Removal of Riparian Vegetation

6.4 Miles

2002

5B

2004


Region 3

Bell Creek (Santa Barbara Co)

River & Stream

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

1 Miles

2014

5A

2035
  • Lead
    • No Source Analysis Available

1 Miles

2010

5A

2035
  • Nitrate
    • Agriculture

1 Miles

2006

5B

2013
  • Selenium
    • No Source Analysis Available

1 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

1 Miles

2014

5A

2035


Region 3

Bennett Slough

River & Stream

3306.000004  /  18060011
  • Chlorophyll-a
    • A Source Unknown

1.9 Miles

2010

5A

2018
  • Oxygen, Dissolved
    • A Source Unknown

1.9 Miles

2014

5A

2018
  • Turbidity
    • A Source Unknown

1.9 Miles

2010

5A

2023
  • pH
    • A Source Unknown

1.9 Miles

2010

5A

2018


Region 3

Big Creek (Big Sur Coast)

River & Stream

3308.000501,3308.000503  /  18060006
  • pH
    • Natural Sources

6.6 Miles

2010

5A

2035


Region 3

Blanco Drain

River & Stream

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

9.2 Miles

2014

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

9.2 Miles

2014

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

9.2 Miles

2014

5A

2035
  • Diazinon
    • Agriculture

9.2 Miles

2010

5B

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

9.2 Miles

2010

5B

2015
  • Selenium
    • No Source Analysis Available

9.2 Miles

2020

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

9.2 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

9.2 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

9.2 Miles

2010

5A

2035


Region 3

Blosser Channel

River & Stream

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

1.7 Miles

2014

5B

2016
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

1.7 Miles

2014

5B

2015
  • Chlorpyrifos
    • Agriculture

1.7 Miles

2010

5B

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

1.7 Miles

2014

5B

2015
  • Diazinon
    • Agriculture

1.7 Miles

2010

5B

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

1.7 Miles

2010

5B

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

1.7 Miles

2014

5B

2035
  • Temperature, water
    • A Source Unknown

1.7 Miles

2010

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

1.7 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

1.7 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

1.7 Miles

2010

5A

2035


Region 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
  • 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
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

17 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

17 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

17 Miles

2010

5A

2035


Region 3

Bradley Channel

River & Stream

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

3.1 Miles

2014

5B

2016
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2014

5B

2015
  • Chlorpyrifos
    • Agriculture

3.1 Miles

2010

5B

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

3.1 Miles

2014

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
  • Imidacloprid
    • No Source Analysis Available

3.1 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

3.1 Miles

2020

5A

2035
  • Linuron
    • No Source Analysis Available

3.1 Miles

2020

5A

2035
  • 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
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2020

5B

2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.1 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

3.1 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

3.1 Miles

2010

5A

2035


Region 3

Branciforte Creek

River & Stream

3304.120501,3304.120503  /  18060001
  • Chlorpyrifos
    • A Source Unknown

9.9 Miles

2010

5B

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

9.9 Miles

2010

5B

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

9.9 Miles

2010

5B

2035
  • Sedimentation/Siltation
    • Channel Erosion
    • Erosion/Siltation
    • Highway/Road/Bridge Construction
    • Hydromodification

9.9 Miles

2002

5B

2004
  • Toxicity
    • No Source Analysis Available

9.9 Miles

2014

5A

2035


Region 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
    • A Source Unknown

3169 Acres

2014

5A

2018


Region 3

Camp Evers Creek

River & Stream

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

0.81 Miles

2014

5A

2035
  • pH
    • A Source Unknown

0.81 Miles

2010

5A

2027


Region 3

Canada De La Gaviota

River & Stream

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

7.1 Miles

2010

5A

2035
  • Boron
    • A Source Unknown
    • Agricultural Return Flows

7.1 Miles

2006

5A

2035
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

7.1 Miles

2010

5A

2035
  • Copper
    • No Source Analysis Available

7.1 Miles

2010

5A

2035
  • Lead
    • No Source Analysis Available

7.1 Miles

2010

5A

2035
  • Nickel
    • No Source Analysis Available

7.1 Miles

2010

5A

2035
  • Selenium
    • No Source Analysis Available

7.1 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown

7.1 Miles

2010

5A

2027


Region 3

Canada Del Capitan

River & Stream

3315.100204  /  18060013
  • Toxicity
    • A Source Unknown

5.8 Miles

2014

5A

2027


Region 3

Canada Del Refugio

River & Stream

3315.100202  /  18060013
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

6.9 Miles

2010

5A

2035
  • Sodium
    • No Source Analysis Available

6.9 Miles

2010

5A

2035


Region 3

Carmel River

River & Stream

3307.000101,3307.000103,3307.000104,3307.000302,3307.000401,3307.000403,3307.000404,3307.000405,3307.000502,3307.000503  /  18060012
  • Benthic Community Effects
    • A Source Unknown

39 Miles

2014

5A

2034
  • Toxicity
    • No Source Analysis Available

39 Miles

2014

5A

2035
    The spatial extent of the impairment is limited to the reach between Highway 1 bridge and the Pacific Ocean.


Region 3

Carnadero Creek (Uvas Creek below Bloomfield Road)

River & Stream

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

3.2 Miles

2010

5B

2010
  • Imidacloprid
    • No Source Analysis Available

3.2 Miles

2020

5A

2027
  • Nitrate
    • Agriculture
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

3.2 Miles

2010

5B

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

3.2 Miles

2014

5B

2018
  • Toxicity
    • No Source Analysis Available

3.2 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

3.2 Miles

2010

5A

2035


Region 3

Carneros Creek (Monterey County)

River & Stream

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

12 Miles

2014

5A

2025
  • Chlorophyll-a
    • No Source Analysis Available

12 Miles

2010

5A

2018
  • Chlorpyrifos
    • No Source Analysis Available

12 Miles

2020

5A

2025
  • Copper
    • No Source Analysis Available

12 Miles

2020

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

12 Miles

2020

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

12 Miles

2010

5A

2035
  • Nitrate
    • A Source Unknown

12 Miles

2010

5A

2027
  • Organophosphate Pesticides
    • No Source Analysis Available

12 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

12 Miles

2014

5A

2025
  • Turbidity
    • No Source Analysis Available

12 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

12 Miles

2010

5A

2035


Region 3

Carneros Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Enterococcus
    • A Source Unknown

6.1 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.1 Miles

2010

5A

2035
  • Nitrate
    • Agriculture

6.1 Miles

2010

5B

2014
  • Specific Conductivity
    • No Source Analysis Available

6.1 Miles

2014

5A

2035
  • Toxicity
    • No Source Analysis Available

6.1 Miles

2014

5A

2035


Region 3

Carpinteria Creek (below Gobernador Creek)

River & Stream

3315.340001,3315.340003  / 
  • Chloride
    • A Source Unknown

2.3 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • No Source Analysis Available

2.3 Miles

2014

5A

2035
  • Nitrate
    • No Source Analysis Available

2.3 Miles

2014

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

2.3 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown

2.3 Miles

2014

5A

2027
  • Toxicity
    • No Source Analysis Available

2.3 Miles

2014

5A

2035


Region 3

Carpinteria Marsh (El Estero)

Estuary

3315.340003  /  18060013
  • Nutrients
    • No Source Analysis Available

201 Acres

1994

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

201 Acres

2014

5A

2035
  • Priority Organics
    • A Source Unknown

201 Acres

1992

5A

2027


Region 3

Casmalia Canyon Creek

River & Stream

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

5 Miles

2006

5A

2027


Region 3

Castroville Slough

Coastal & Bay Shoreline

3309.120001  / 
  • Oxygen, Dissolved
    • No Source Analysis Available

11 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

11 Miles

2020

5A

2035


Region 3

Chesbro Reservoir

Lake & Reservoir

3305.200104,3305.300200  /  18060002
  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

235 Acres

2014

5A

2035
  • Mercury
    • A Source Unknown

235 Acres

2010

5A

2018


Region 3

Cholame Creek

River & Stream

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

8.8 Miles

2002

5B

2014
  • Chloride
    • A Source Unknown

8.8 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • No Source Analysis Available

8.8 Miles

2014

5A

2035
    The impaired reach length is 1 mile and centered on Bitterwater Road.
  • Sodium
    • A Source Unknown

8.8 Miles

2010

5A

2027
  • Specific Conductivity
    • A Source Unknown

8.8 Miles

2014

5A

2027


Region 3

Chorro Creek

River & Stream

3310.220001,3310.220002,3310.220003,3310.270000  /  18060006
  • Aluminum
    • No Source Analysis Available

15 Miles

2020

5A

2035
  • Benthic Community Effects
    • A Source Unknown

15 Miles

2014

5A

2027
  • Chloride
    • A Source Unknown

15 Miles

2014

5A

2027
  • Chromium
    • No Source Analysis Available

15 Miles

2014

5A

2035
  • Nickel
    • No Source Analysis Available

15 Miles

2010

5A

2035
  • Nutrients
    • Agriculture
    • Domestic Animals/Livestock
    • Flow Alteration/Regulation/Modification
    • Minor Municipal Point Source-dry and/or wet weather discharge
    • Natural Sources
    • Nonpoint Source

15 Miles

1998

5B

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

15 Miles

1990

5B

2004
  • Sodium
    • Municipal Point Sources

15 Miles

2014

5B

2007
  • Total Dissolved Solids
    • Municipal Point Sources

15 Miles

2014

5B

2007
  • Toxicity
    • No Source Analysis Available

15 Miles

2014

5A

2035
  • pH
    • No Source Analysis Available

15 Miles

2010

5A

2035


Region 3

Chualar Creek

River & Stream

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

14 Miles

2014

5B

2015
  • Bensulide
    • No Source Analysis Available

14 Miles

2020

5A

2035
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B

2018
  • Chlorpyrifos
    • Agriculture

14 Miles

2010

5B

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

14 Miles

2014

5B

2018
  • Diazinon
    • Agriculture

14 Miles

2010

5B

2011
  • Dimethoate
    • A Source Unknown

14 Miles

2014

5A

2035
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Illegal dumping
    • Natural Sources

14 Miles

2010

5B

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

14 Miles

2010

5B

2012
  • Imidacloprid
    • No Source Analysis Available

14 Miles

2020

5A

2035
  • Imidacloprid guanidine
    • No Source Analysis Available

14 Miles

2020

5A

2027
  • Malathion
    • No Source Analysis Available

14 Miles

2014

5A

2025
  • Methomyl
    • No Source Analysis Available

14 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

14 Miles

2010

5B

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

14 Miles

2020

5B

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

14 Miles

2014

5B

2015
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B

2018
  • Temperature, water
    • No Source Analysis Available

14 Miles

2010

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

14 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

14 Miles

2010

5A

2035


Region 3

Chualar Creek, South Branch

River & Stream

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

3.7 Miles

2014

5B

2015
  • Lead
    • No Source Analysis Available

3.7 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.7 Miles

2010

5B

2015
  • Temperature, water
    • No Source Analysis Available

3.7 Miles

2014

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.7 Miles

2020

5B

2018
  • Turbidity
    • No Source Analysis Available

3.7 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

3.7 Miles

2010

5A

2035


Region 3

Chumash Creek

River & Stream

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

2.1 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

2.1 Miles

2024

5A

2027


Region 3

Cieneguitas Creek

River & Stream

3315.310001,3315.310003  /  18060013
  • Enterococcus
    • A Source Unknown

3.2 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • No Source Analysis Available

3.2 Miles

2010

5A

2035
  • Nitrate
    • No Source Analysis Available

3.2 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

3.2 Miles

2014

5A

2035


Region 3

Corcoran Lagoon

Wetland, Freshwater

3304.130104  /  18060001
  • Total Coliform
    • A Source Unknown

12 Acres

2010

5A

2027
  • pH
    • A Source Unknown

12 Acres

2010

5A

2027


Region 3

Corralitos Creek

River & Stream

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

14 Miles

2020

5A

2035
  • Turbidity
    • No Source Analysis Available

14 Miles

2010

5A

2035
    The impaired length is between Browns Valley Road and the confluence with Salsipuedes Creek.
  • pH
    • No Source Analysis Available

14 Miles

2010

5A

2035


Region 3

Cuyama River (above Twitchell Reservoir)

River & Stream

31230060  /  18060007
  • Boron
    • A Source Unknown

80 Miles

2010

5A

2035
    The impaired length is between Twitchell Reservoir and the Highway 33 Bridge
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

80 Miles

2010

5A

2035
    The impaired length is between Twitchell Reservoir and the Highway 33 Bridge.
  • Sodium
    • No Source Analysis Available

80 Miles

2010

5A

2035
    Impaired reach is from Twitchell Reservoir to Highway 33 bridge.
  • Specific Conductivity
    • No Source Analysis Available

80 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

80 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

80 Miles

2010

5A

2035


Region 3

Dairy Creek

River & Stream

3310.220001,3310.220003  /  18060006
  • Enterococcus
    • A Source Unknown

4.7 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • A 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.
  • Oxygen, Dissolved
    • Grazing-Related Sources

4.7 Miles

2014

5A

2027


Region 3

Devereux Creek

River & Stream

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

1.1 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

1.1 Miles

2010

5A

2035


Region 3

Dos Pueblos Canyon Creek

River & Stream

3315.100101  /  18060013
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

7.1 Miles

2010

5A

2035


Region 3

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

River & Stream

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

2.7 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

2.7 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

2.7 Miles

2020

5A

2035


Region 3

Elkhorn Slough

Estuary

30600014  /  18060011
  • Copper
    • No Source Analysis Available

2034 Acres

2020

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

2034 Acres

2020

5A

2035
  • Dieldrin
    • A Source Unknown

2034 Acres

2020

5A

2035
  • Nitrate
    • No Source Analysis Available

2034 Acres

2014

5A

2025
  • Oxygen, Dissolved
    • No Source Analysis Available

2034 Acres

2014

5A

2025
  • Pesticides
    • A Source Unknown

2034 Acres

1990

5A

2027
  • Sedimentation/Siltation
    • A Source Unknown

2034 Acres

1996

5A

2027
  • Total Coliform
    • A Source Unknown

2034 Acres

2010

5A

2035
  • pH
    • No Source Analysis Available

2034 Acres

2010

5A

2035


Region 3

Espinosa Slough

River & Stream

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

0.99 Miles

2014

5B

2015
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

0.99 Miles

2020

5B

2018
  • Diazinon
    • Agriculture

0.99 Miles

2010

5B

2011
  • Malathion
    • A Source Unknown

0.99 Miles

2014

5A

2025
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

0.99 Miles

2010

5B

2015
  • Pesticides
    • A Source Unknown

0.99 Miles

1996

5A

2027
  • Priority Organics
    • A Source Unknown

0.99 Miles

1996

5A

2027
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

0.99 Miles

2020

5B

2018
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

0.99 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

0.99 Miles

2010

5A

2025
  • pH
    • No Source Analysis Available

0.99 Miles

2010

5A

2035


Region 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
    • A Source Unknown
    • No Source Analysis Available

28 Miles

2010

5A

2035
    The water bearing formations in this watershed are Alluvium and Cuyama Morales Formations. These formations are likely to contribute to elevated salt levels and pH in the surface water and therefore this may be a natural condition.
  • Escherichia coli (E. coli)
    • No Source Analysis Available

28 Miles

2010

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

28 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

28 Miles

2014

5A

2023
  • Turbidity
    • No Source Analysis Available

28 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

28 Miles

2010

5A

2035


Region 3

Franklin Creek (Santa Barbara County)

River & Stream

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

2.9 Miles

2020

5A

2035
  • Chlorpyrifos
    • No Source Analysis Available

2.9 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

2.9 Miles

2010

5A

2035
  • Imidacloprid
    • No Source Analysis Available

2.9 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

2.9 Miles

2010

5A

2035
  • Nitrate
    • Agriculture
    • Construction/Land Development
    • Natural Sources
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

2.9 Miles

2006

5B

2018
  • Selenium
    • No Source Analysis Available

2.9 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

2.9 Miles

2010

5A

2035
  • Toxicity
    • No Source Analysis Available

2.9 Miles

2014

5A

2035
  • Urea
    • No Source Analysis Available

2.9 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

2.9 Miles

2010

5A

2035


Region 3

Furlong Creek

River & Stream

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

8.5 Miles

2010

5A

2035
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

8.5 Miles

2010

5B

2010
  • Imidacloprid
    • No Source Analysis Available

8.5 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

8.5 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

8.5 Miles

2010

5B

2018
  • Selenium
    • No Source Analysis Available

8.5 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

8.5 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

8.5 Miles

2010

5A

2035


Region 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
  • Copper
    • No Source Analysis Available

9.5 Miles

2020

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

9.5 Miles

2010

5A

2035
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Transient encampments
    • Urban Runoff/Storm Sewers

9.5 Miles

2002

5B

2012
  • Imidacloprid
    • No Source Analysis Available

9.5 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

9.5 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

9.5 Miles

2006

5B

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

9.5 Miles

2014

5B

2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

9.5 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

9.5 Miles

2010

5A

2025
  • pH
    • No Source Analysis Available

9.5 Miles

2010

5A

2035


Region 3

Gazos Creek

River & Stream

3304.200004  /  18060001
  • Aluminum
    • No Source Analysis Available

9.5 Miles

2020

5A

2035
  • Lead
    • No Source Analysis Available

9.5 Miles

2010

5A

2035


Region 3

Glen Annie Canyon Creek

River & Stream

3315.310002,3315.310003  / 
  • Enterococcus
    • A Source Unknown

4.8 Miles

2014

5A

2027
  • Escherichia coli (E. coli)
    • No Source Analysis Available

4.8 Miles

2014

5A

2035
  • Lead
    • No Source Analysis Available

4.8 Miles

2020

5A

2035
  • Nitrate
    • Agriculture

4.8 Miles

2014

5B

2014
  • Oxygen, Dissolved
    • No Source Analysis Available

4.8 Miles

2014

5A

2035
  • Selenium
    • No Source Analysis Available

4.8 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

4.8 Miles

2014

5A

2035


Region 3

Goleta Slough/Estuary

Estuary

3315.310003  /  18060013
  • Enterococcus
    • No Source Analysis Available

167 Acres

2020

5A

2035
  • Indicator Bacteria
    • A Source Unknown
    • Natural Sources
    • Urban Runoff/Storm Sewers

167 Acres

2014

5A

2027
  • Oxygen, Dissolved
    • No Source Analysis Available

167 Acres

2014

5A

2035
  • Priority Organics
    • A Source Unknown

167 Acres

1990

5A

2027
  • pH
    • No Source Analysis Available

167 Acres

2010

5A

2035


Region 3

Greene Valley Creek (Santa Barbara County)

River & Stream

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

3.9 Miles

2014

5B

2016
  • Chlorpyrifos
    • Agriculture

3.9 Miles

2010

5B

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

3.9 Miles

2014

5B

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

3.9 Miles

2014

5B

2015
  • Lead
    • No Source Analysis Available

3.9 Miles

2020

5A

2035
  • Malathion
    • Agriculture

3.9 Miles

2014

5B

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

3.9 Miles

2010

5B

2016
  • Selenium
    • No Source Analysis Available

3.9 Miles

2020

5A

2035
  • Temperature, water
    • No Source Analysis Available

3.9 Miles

2010

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.9 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

3.9 Miles

2010

5A

2035


Region 3

Harkins Slough

River & Stream

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

7.3 Miles

2010

5A

2035
  • Indicator Bacteria
    • A Source Unknown
    • See TMDL documentation

7.3 Miles

2014

5B

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

7.3 Miles

2014

5B

2018
  • Toxicity
    • No Source Analysis Available

7.3 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

7.3 Miles

2010

5A

2035


Region 3

Hartnell Creek (Monterey County)

River & Stream

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

1 Miles

2020

5A

2035


Region 3

Jalama Creek

River & Stream

3315.100501,3315.100502  /  18060013
  • Chloride
    • Natural Sources

11 Miles

2010

5B

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

11 Miles

2010

5A

2035
  • Sodium
    • Natural Sources

11 Miles

2010

5B

2013
  • Urea
    • No Source Analysis Available

11 Miles

2020

5A

2035


Region 3

Jameson Lake

Lake & Reservoir

3314.510405  /  18060010
  • Mercury
    • A Source Unknown

118 Acres

2014

5A

2033


Region 3

Las Tablas Creek

River & Stream

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

5.5 Miles

1990

5A

2027


Region 3

Las Tablas Creek, North Fork

River & Stream

3309.811205  /  18060005
  • Metals
    • Inactive Mining

6.9 Miles

1990

5A

2027


Region 3

Las Tablas Creek, South Fork

River & Stream

3309.811205  /  18060006
  • Metals
    • Inactive Mining

4.8 Miles

1990

5A

2027


Region 3

Las Vegas Creek

River & Stream

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

3.1 Miles

2020

5A

2035


Region 3

Limekiln Creek

River & Stream

3308.000502  /  18060006
  • pH
    • No Source Analysis Available

3.5 Miles

2010

5A

2035


Region 3

Little Oso Flaco Creek

River & Stream

3312.100300  /  18060008
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

2.2 Miles

2020

5B

2015
  • Imidacloprid
    • No Source Analysis Available

2.2 Miles

2020

5A

2035
  • Lead
    • No Source Analysis Available

2.2 Miles

2020

5A

2035
  • Malathion
    • Agriculture

2.2 Miles

2014

5B

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

2.2 Miles

2010

5B

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

2.2 Miles

2014

5B

2016
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

2.2 Miles

2020

5B

2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

2.2 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

2.2 Miles

2010

5A

2035


Region 3

Llagas Creek (above Chesbro Reservoir)

River & Stream

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

9.4 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

9.4 Miles

2010

5A

2035


Region 3

Llagas Creek (below Chesbro Reservoir)

River & Stream

30530020  /  18060002
  • Aluminum
    • No Source Analysis Available

16 Miles

2020

5A

2035
  • Chloride
    • A 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
  • Copper
    • No Source Analysis Available

16 Miles

2020

5A

2035
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

16 Miles

2010

5A

2035
  • Lead
    • No Source Analysis Available

16 Miles

2020

5A

2035
  • Manganese
    • No Source Analysis Available

16 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

16 Miles

2014

5B

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

16 Miles

2014

5B

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).
  • Selenium
    • No Source Analysis Available

16 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown
    • Nonpoint Source

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
    • No Source Analysis Available

16 Miles

2014

5A

2035
  • Total Dissolved Solids
    • A 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).
  • Toxicity
    • Agriculture

16 Miles

2014

5B

2013
  • Turbidity
    • No Source Analysis Available

16 Miles

2010

5A

2035


Region 3

Lockhart Gulch

River & Stream

3304.120401  /  18060001
  • Oxygen, Dissolved
    • A Source Unknown

2.8 Miles

2014

5A

2027
  • pH
    • A Source Unknown

2.8 Miles

2010

5A

2027


Region 3

Los Berros Creek

River & Stream

3310.310202,3310.310203  /  18060008
  • Chloride
    • A Source Unknown

14 Miles

2010

5A

2027
  • Nitrate
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

14 Miles

2010

5B

2012
  • Sodium
    • A Source Unknown

14 Miles

2010

5A

2027
  • Toxicity
    • No Source Analysis Available

14 Miles

2014

5A

2035


Region 3

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

River & Stream

3310.230001  / 
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

3.8 Miles

2014

5B

2005
  • Oxygen, Dissolved
    • A Source Unknown

3.8 Miles

2014

5A

2027
    This listing was made by USEPA.
  • Sedimentation/Siltation
    • Erosion/Siltation

3.8 Miles

2014

5B

2004


Region 3

Los Osos Creek (upstream of Los Osos)

River & Stream

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

6.1 Miles

2014

5A

2035


Region 3

Los Osos Creek Estuary

River & Stream

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

0.99 Miles

2014

5B

2005
  • Oxygen, Dissolved
    • No Source Analysis Available

0.99 Miles

2014

5A

2035
    This listing was made by USEPA.
  • Turbidity
    • No Source Analysis Available

0.99 Miles

2014

5A

2035


Region 3

Love Creek

River & Stream

3304.120201  /  18060001
  • Sedimentation/Siltation
    • A Source Unknown

3.8 Miles

2002

5A

2027


Region 3

Main Street Channel

River & Stream

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

3.3 Miles

2014

5B

2016
  • Arsenic
    • No Source Analysis Available

3.3 Miles

2020

5A

2035
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B

2015
  • Chlorpyrifos
    • Agriculture

3.3 Miles

2010

5B

2015
  • Copper
    • No Source Analysis Available

3.3 Miles

2020

5A

2035
  • DDD (Dichlorodiphenyldichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B

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

3.3 Miles

2014

5B

2015
  • Diazinon
    • Agriculture

3.3 Miles

2010

5B

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

3.3 Miles

2014

5B

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

3.3 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

3.3 Miles

2020

5A

2035
  • Linuron
    • No Source Analysis Available

3.3 Miles

2020

5A

2035
  • Malathion
    • Agriculture

3.3 Miles

2014

5B

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

3.3 Miles

2002

5B

2016
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2020

5B

2015
  • Temperature, water
    • No Source Analysis Available

3.3 Miles

2010

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.3 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

3.3 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

3.3 Miles

2010

5A

2035


Region 3

Majors Creek (Monterey County)

River & Stream

3307.000502,3309.500402  /  18060012
  • Copper
    • A Source Unknown
    • No Source Analysis Available
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

1.9 Miles

2010

5A

2035
  • Lead
    • No Source Analysis Available
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

2035
  • Zinc
    • No Source Analysis Available
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5A

2035


Region 3

Maria Ygnacio Creek

River & Stream

3315.310001,3315.310003  /  18060013
  • Enterococcus
    • A Source Unknown

7.2 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • No Source Analysis Available

7.2 Miles

2010

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

7.2 Miles

2010

5A

2035
  • Turbidity
    • No Source Analysis Available

7.2 Miles

2010

5A

2035


Region 3

McEnery Spring

River & Stream

30412040  /  18060001
  • pH
    • A Source Unknown

0.07 Miles

2010

5A

2027


Region 3

McGowan Ditch

River & Stream

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

2.5 Miles

2014

5A

2027
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

2.5 Miles

2014

5A

2027
  • Malathion
    • A Source Unknown

2.5 Miles

2014

5A

2027
  • Nitrate
    • A Source Unknown

2.5 Miles

2010

5A

2018
  • Oxyfluorfen
    • A Source Unknown

2.5 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

2.5 Miles

2014

5A

2023


Region 3

Merrit Ditch

River & Stream

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

0.45 Miles

2014

5B

2015
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2020

5B

2018
  • Clothianidin
    • No Source Analysis Available

0.45 Miles

2020

5A

2027
  • Copper
    • No Source Analysis Available

0.45 Miles

2020

5A

2035
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2020

5B

2018
  • Diazinon
    • Agriculture

0.45 Miles

2010

5B

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

0.45 Miles

2020

5A

2035
  • Lead
    • No Source Analysis Available

0.45 Miles

2020

5A

2035
  • Malathion
    • No Source Analysis Available

0.45 Miles

2014

5A

2025
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

0.45 Miles

2010

5B

2015
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2020

5B

2018
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2020

5B

2018
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

0.45 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

0.45 Miles

2010

5A

2025
  • pH
    • No Source Analysis Available

0.45 Miles

2010

5A

2035


Region 3

Millers Canal

River & Stream

30530020  /  18060002
  • Arsenic
    • No Source Analysis Available

2.1 Miles

2020

5A

2035
  • Chlorophyll-a
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.1 Miles

2010

5A

2035
  • Lead
    • No Source Analysis Available

2.1 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.1 Miles

2010

5B

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

2.1 Miles

2014

5B

2018
  • Selenium
    • No Source Analysis Available

2.1 Miles

2020

5A

2035
  • Temperature, water
    • No Source Analysis Available

2.1 Miles

2010

5A

2035
  • Toxicity
    • No Source Analysis Available

2.1 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

2.1 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

2.1 Miles

2010

5A

2035


Region 3

Mission Creek (Santa Barbara County)

River & Stream

3315.320001  /  18060013
  • Aluminum
    • No Source Analysis Available

8.7 Miles

2020

5A

2035
  • Chlordane
    • No Source Analysis Available

8.7 Miles

2014

5A

2035
  • Copper
    • No Source Analysis Available

8.7 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

8.7 Miles

1992

5A

2035
  • Fecal Coliform
    • A Source Unknown

8.7 Miles

1992

5A

2035
  • Lead
    • No Source Analysis Available

8.7 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

8.7 Miles

2014

5A

2035
  • Toxicity
    • No Source Analysis Available

8.7 Miles

2014

5A

2035


Region 3

Monterey Harbor

Bay & Harbor

30950042  /  18060012
  • Arsenic
    • A Source Unknown

76 Acres

2010

5A

2027
  • Copper
    • A Source Unknown

76 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

76 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

76 Acres

2014

5A

2027
  • Toxicity
    • A Source Unknown

76 Acres

2014

5A

2023


Region 3

Moore Creek

River & Stream

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

3.6 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

3.6 Miles

2014

5A

2035
  • Specific Conductivity
    • No Source Analysis Available

3.6 Miles

2014

5A

2035
  • pH
    • No Source Analysis Available

3.6 Miles

2010

5A

2035


Region 3

Moro Cojo Slough

Estuary

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

62 Acres

2014

5B

2015
  • Copper
    • No Source Analysis Available

62 Acres

2020

5A

2035
  • Nickel
    • No Source Analysis Available

62 Acres

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

62 Acres

2014

5B

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

62 Acres

1800

5B

2015
  • Pesticides
    • A Source Unknown

62 Acres

2002

5A

2027
  • Sedimentation/Siltation
    • A Source Unknown

62 Acres

2002

5A

2027
  • Selenium
    • No Source Analysis Available

62 Acres

2020

5A

2035
  • Total Coliform
    • No Source Analysis Available

62 Acres

2010

5A

2035
  • Toxicity
    • No Source Analysis Available

62 Acres

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

62 Acres

2010

5A

2035
  • pH
    • No Source Analysis Available

62 Acres

2010

5A

2035


Region 3

Morro Bay

Bay & Harbor

31022012  /  18060006
  • Arsenic
    • A Source Unknown
    • No Source Analysis Available

1922 Acres

1800

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

1922 Acres

2006

5A

2035
  • Sedimentation/Siltation
    • Agriculture
    • Erosion/Siltation
    • Grazing-Related Sources
    • Habitat Modification
    • Highway/Road/Bridge Construction
    • Land Development

1922 Acres

1994

5B

2004


Region 3

Moss Landing Harbor

Bay & Harbor

30600014  /  18060011
  • Arsenic
    • No Source Analysis Available

79 Acres

2010

5A

2035
  • Chlorpyrifos
    • Agriculture

79 Acres

2010

5B

2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

79 Acres

2014

5A

2027
  • Dieldrin
    • A Source Unknown

79 Acres

2010

5A

2035
  • Indicator Bacteria
    • A Source Unknown

79 Acres

2014

5A

2027
  • Nickel
    • A Source Unknown

79 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

79 Acres

2014

5A

2018
  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

79 Acres

2014

5A

2035
  • Sedimentation/Siltation
    • A Source Unknown

79 Acres

1996

5A

2027
  • Toxicity
    • Agriculture

79 Acres

2014

5B

2023
  • pH
    • No Source Analysis Available

79 Acres

2010

5A

2035


Region 3

Mountain Charlie Gulch

River & Stream

3304.120402  /  18060001
  • Sedimentation/Siltation
    • A Source Unknown

4 Miles

2002

5A

2027


Region 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
    • A Source Unknown

5495 Acres

1800

5A

2018


Region 3

Nacimiento River (below Nacimiento Reservoir)

River & Stream

30981175  /  18060005
  • pH
    • No Source Analysis Available

13 Miles

2010

5A

2035


Region 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
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

7.2 Miles

2020

5B

2018
  • Chlorpyrifos
    • No Source Analysis Available

7.2 Miles

2010

5B

2011
  • Copper
    • No Source Analysis Available

7.2 Miles

2020

5A

2035
  • Diazinon
    • Agriculture

7.2 Miles

2010

5B

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

7.2 Miles

2010

5B

2012
  • Fecal Coliform
    • No Source Analysis Available

7.2 Miles

2020

5B

2035
  • Imidacloprid
    • No Source Analysis Available

7.2 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

7.2 Miles

2020

5A

2035
  • Malathion
    • No Source Analysis Available

7.2 Miles

2014

5A

2025
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.2 Miles

2006

5B

2015
  • Organophosphate Pesticides
    • Agriculture

7.2 Miles

2020

5B

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

7.2 Miles

2014

5B

2015
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

7.2 Miles

2020

5B

2018
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

7.2 Miles

2020

5B

2018
  • Temperature, water
    • No Source Analysis Available

7.2 Miles

2010

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

7.2 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

7.2 Miles

2010

5A

2025


Region 3

Newell Creek (Lower)

River & Stream

3304.120202,3304.120600  /  18060001
  • pH
    • A Source Unknown

1.8 Miles

2010

5A

2027


Region 3

Newell Creek (Upper)

River & Stream

3304.120600  /  18060001
  • Sedimentation/Siltation
    • A Source Unknown

3.3 Miles

2002

5A

2027


Region 3

Nipomo Creek

River & Stream

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

9.5 Miles

2014

5B

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

9.5 Miles

2002

5B

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

9.5 Miles

2010

5B

2016
  • Turbidity
    • No Source Analysis Available

9.5 Miles

2010

5A

2035


Region 3

Old Creek (above Whale Rock Reservoir)

River & Stream

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

7.8 Miles

2014

5A

2027


Region 3

Old Salinas River

River & Stream

30911010  /  18060011
  • Aluminum
    • No Source Analysis Available

3.8 Miles

2020

5A

2035
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.8 Miles

2014

5B

2035
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.8 Miles

2014

5B

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

3.8 Miles

2010

5B

2015
  • Chlorpyrifos
    • Agriculture

3.8 Miles

2010

5B

2011
  • Copper
    • No Source Analysis Available

3.8 Miles

2010

5A

2035
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

3.8 Miles

2014

5B

2018
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

3.8 Miles

2020

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

3.8 Miles

2020

5A

2035
  • Diazinon
    • Agriculture

3.8 Miles

2010

5B

2011
  • Imidacloprid
    • No Source Analysis Available

3.8 Miles

2020

5A

2027
  • Malathion
    • No Source Analysis Available

3.8 Miles

2014

5A

2025
  • Nickel
    • No Source Analysis Available

3.8 Miles

2010

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.8 Miles

2010

5B

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

3.8 Miles

2014

5B

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

3.8 Miles

2014

5B

2035
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

3.8 Miles

2020

5B

2018
  • Selenium
    • No Source Analysis Available

3.8 Miles

2020

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.8 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

3.8 Miles

2010

5A

2035
  • Urea
    • No Source Analysis Available

3.8 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

3.8 Miles

2010

5A

2035


Region 3

Old Salinas River Estuary

Estuary

30911010  /  18060011
  • Nutrients
    • A Source Unknown

16 Acres

1992

5A

2018
  • Pesticides
    • A Source Unknown

16 Acres

1990

5A

2023


Region 3

Orcutt Creek

River & Stream

31210030  /  18060008
  • Aluminum
    • No Source Analysis Available

10 Miles

2024

5A

2035
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

10 Miles

2014

5B

2016
  • Arsenic
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

10 Miles

2014

5B

2015
  • Boron
    • No Source Analysis Available

10 Miles

2006

5A

2035
    The spatial extent of this boron impairment is limited to the creek segment upstream of Black Road (monitoring site 312 ORB).
  • Carbaryl
    • A Source Unknown
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Chlorpyrifos
    • Agriculture

10 Miles

2006

5B

2015
  • Copper
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • 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
    • Urban Runoff/Storm Sewers

10 Miles

1800

5B

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

10 Miles

1800

5B

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

10 Miles

2006

5B

2015
  • Dieldrin
    • Agriculture

10 Miles

2006

5B

2015
  • Imidacloprid
    • No Source Analysis Available

10 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Linuron
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Malathion
    • Agriculture

10 Miles

2014

5B

2015
  • Molybdenum
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Nickel
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

10 Miles

2002

5B

2016
  • Organophosphate Pesticides
    • Agriculture

10 Miles

2020

5B

2015
  • Oxyfluorfen
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Prometryn
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

10 Miles

2020

5B

2018
  • Selenium
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Specific Conductivity
    • A Source Unknown

10 Miles

2014

5A

2027
  • Temperature, water
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Total Dissolved Solids
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

10 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Zinc
    • No Source Analysis Available

10 Miles

2020

5A

2035


Region 3

Oso Flaco Creek

River & Stream

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

5.2 Miles

2014

5B

2016
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

5.2 Miles

2014

5B

2015
  • Chloride
    • No Source Analysis Available

5.2 Miles

2010

5A

2035
  • Chlorpyrifos
    • Agriculture

5.2 Miles

2010

5B

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

5.2 Miles

2014

5B

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

5.2 Miles

2014

5B

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

5.2 Miles

2014

5B

2015
  • Imidacloprid
    • No Source Analysis Available

5.2 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

5.2 Miles

2020

5A

2035
  • Malathion
    • Agriculture

5.2 Miles

2014

5B

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

5.2 Miles

2002

5B

2016
  • Oxyfluorfen
    • No Source Analysis Available

5.2 Miles

2020

5A

2035
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

5.2 Miles

2020

5B

2015
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

5.2 Miles

2010

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

5.2 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

5.2 Miles

2010

5A

2035


Region 3

Oso Flaco Lake

Lake & Reservoir

3312.100300  /  18060008
  • Chlordane
    • Agriculture

46 Acres

2014

5B

2015
  • Chlorophyll-a
    • No Source Analysis Available

46 Acres

2010

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture
    • Urban Runoff/Storm Sewers

46 Acres

2014

5B

2015
  • Dieldrin
    • Agriculture

46 Acres

2006

5B

2015
  • Endrin
    • Agriculture

46 Acres

2014

5B

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

46 Acres

2014

5B

2013
  • Heptachlor epoxide
    • A Source Unknown

46 Acres

2014

5A

2035
  • Mercury
    • A Source Unknown

46 Acres

2014

5A

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

46 Acres

2002

5B

2016
  • Oxygen, Dissolved
    • No Source Analysis Available

46 Acres

2014

5A

2035
  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

46 Acres

2014

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

46 Acres

2014

5B

2015


Region 3

Pacheco Creek

River & Stream

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

26 Miles

2014

5B

2027
  • Turbidity
    • No Source Analysis Available

26 Miles

2010

5A

2035


Region 3

Pacific Ocean (Point Ano Nuevo to Soquel Point)

Ocean

30411022  /  18060001
  • Dieldrin
    • A Source Unknown

26832 Acres

2010

5A

2035


Region 3

Pacific Ocean at Arroyo Burro Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532010  /  18060013
  • Enterococcus
    • A Source Unknown

0.06 Miles

2010

5A

2033
  • Total Coliform
    • A Source Unknown

0.06 Miles

2002

5A

2027


Region 3

Pacific Ocean at Arroyo Quemada Beach (Santa Barbara County)

Coastal & Bay Shoreline

3315.100201,3315.100202,3315.100203,3315.100204  /  18060013
  • Enterococcus
    • A Source Unknown

3.1 Miles

2010

5A

2033


Region 3

Pacific Ocean at Avila Beach (Avila Pier)

Coastal & Bay Shoreline

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

0.37 Miles

2010

5A

2027
  • Total Coliform
    • A Source Unknown

0.37 Miles

2010

5A

2027


Region 3

Pacific Ocean at Avila Beach (SLO Creek mouth)

Coastal & Bay Shoreline

3310.240201,3310.250002  /  18060006
  • Enterococcus
    • A Source Unknown

0.21 Miles

2010

5A

2033
  • Total Coliform
    • A Source Unknown

0.21 Miles

2010

5A

2027


Region 3

Pacific Ocean at Capitola Beach (Santa Cruz County)

Coastal & Bay Shoreline

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

0.03 Miles

2010

5A

2027
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

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

Coastal & Bay Shoreline

31534020  /  18060013
  • Enterococcus
    • A Source Unknown

0.06 Miles

2010

5A

2033


Region 3

Pacific Ocean at Cayucos (Cayucos Creek Mouth)

Coastal & Bay Shoreline

31016010  /  18060006
  • Enterococcus
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

Pacific Ocean at Cowell Beach (Santa Cruz County)

Coastal & Bay Shoreline

30412053  /  18060001
  • Enterococcus
    • A Source Unknown

0.11 Miles

2010

5A

2033
  • Total Coliform
    • A Source Unknown

0.11 Miles

2010

5A

2027


Region 3

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

Coastal & Bay Shoreline

31532011  /  18060013
  • Enterococcus
    • A Source Unknown

0.06 Miles

2010

5A

2027
  • Fecal Coliform
    • A Source Unknown

0.06 Miles

2002

5A

2027
  • Total Coliform
    • A Source Unknown

0.06 Miles

2002

5A

2027


Region 3

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

Coastal & Bay Shoreline

31532012  /  18060013
  • Enterococcus
    • A Source Unknown

0.06 Miles

2010

5A

2033


Region 3

Pacific Ocean at Estero Bay

Ocean

3310.140201,3310.150000,3310.160000,3310.170002,3310.180000,3310.210000,3310.220002,3310.230001,3310.230002,3310.250001,(Total Count: 12)  / 
  • Mercury
    • A Source Unknown

26858 Acres

2020

5A

2033


Region 3

Pacific Ocean at Goleta Beach (Santa Barbara County)

Coastal & Bay Shoreline

3315.310002,3315.310003,3315.320003  /  18060013
  • Enterococcus
    • A Source Unknown

0.16 Miles

2014

5A

2033
  • Total Coliform
    • A Source Unknown

0.16 Miles

2010

5A

2027


Region 3

Pacific Ocean at Guadalupe Dunes (Santa Barbara County)

Coastal & Bay Shoreline

31210030  /  18060008
  • Total Coliform
    • A Source Unknown

0.45 Miles

2010

5A

2027


Region 3

Pacific Ocean at Hammonds Beach (Santa Barbara County)

Coastal & Bay Shoreline

31533010  /  18060013
  • Total Coliform
    • A Source Unknown

0.06 Miles

2010

5A

2027


Region 3

Pacific Ocean at Hope Ranch Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532010  /  18060013
  • Enterococcus
    • A Source Unknown

0.06 Miles

2010

5A

2033
  • Total Coliform
    • A Source Unknown

0.06 Miles

2010

5A

2027


Region 3

Pacific Ocean at Jalama Beach (Santa Barbara County)

Coastal & Bay Shoreline

31510051  /  18060013
  • Fecal Coliform
    • A Source Unknown

0.06 Miles

2002

5A

2027
  • Total Coliform
    • A Source Unknown

0.06 Miles

2002

5A

2027


Region 3

Pacific Ocean at Leadbetter Beach (Santa Barbara County)

Coastal & Bay Shoreline

31532011  /  18060013
  • Enterococcus
    • A Source Unknown

0.06 Miles

2010

5A

2027
  • Total Coliform
    • A Source Unknown

0.06 Miles

2010

5A

2027


Region 3

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

Coastal & Bay Shoreline

30412053  /  18060001
  • Enterococcus
    • A Source Unknown

0.03 Miles

2010

5A

2033
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

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

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

Pacific Ocean at Mitchells Cove Beach

Coastal & Bay Shoreline

30412053  /  18060001
  • Enterococcus
    • A Source Unknown

0.03 Miles

2010

5A

2033


Region 3

Pacific Ocean at Monterey State Beach (Del Monte Beach)

Coastal & Bay Shoreline

30912014  /  18060012
  • Enterococcus
    • A Source Unknown

0.03 Miles

2010

5A

2027
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

Pacific Ocean at New Brighton Beach (Santa Cruz County)

Coastal & Bay Shoreline

30413014  /  18060001
  • Total Coliform
    • A Source Unknown

0.06 Miles

2010

5A

2027


Region 3

Pacific Ocean at Ocean Beach (Santa Barbara County)

Coastal & Bay Shoreline

31410050  /  18060010
  • Fecal Coliform
    • A Source Unknown

0.06 Miles

2002

5A

2027
  • Total Coliform
    • A Source Unknown

0.06 Miles

2002

5A

2027


Region 3

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

Coastal & Bay Shoreline

3310.240201,3310.250002  /  18060006
  • Enterococcus
    • A Source Unknown

0.05 Miles

2010

5A

2033
  • Total Coliform
    • A Source Unknown

0.05 Miles

2010

5A

2027


Region 3

Pacific Ocean at Pismo Beach (San Luis Obispo County)

Coastal & Bay Shoreline

31026014  /  18060006
  • Fecal Coliform
    • A Source Unknown

0.03 Miles

2014

5A

2027
  • Total Coliform
    • A Source Unknown

0.03 Miles

2014

5A

2027


Region 3

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

Coastal & Bay Shoreline

31026014  /  18060006
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

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

Coastal & Bay Shoreline

31026014  /  18060006
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

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

Coastal & Bay Shoreline

31026014  /  18060006
  • Fecal Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

Pacific Ocean at Refugio Beach (Santa Barbara County)

Coastal & Bay Shoreline

31510022  /  18060013
  • Total Coliform
    • A Source Unknown

0.06 Miles

2002

5A

2027


Region 3

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

Coastal & Bay Shoreline

30413023  /  18060001
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

Pacific Ocean at Santa Cruz Island

Ocean

3316.200000,3316.300000,4406.100000  / 
  • Mercury
    • A Source Unknown

129818 Acres

2020

5A

2033


Region 3

Pacific Ocean at Seabright (Castle) Beach

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

Pacific Ocean at Stillwater Cove Beach

Coastal & Bay Shoreline

30950042  /  18060012
  • Enterococcus
    • A Source Unknown

0.06 Miles

1800

5A

2027


Region 3

Pacific Ocean at Twin Lakes Beach (Santa Cruz County)

Coastal & Bay Shoreline

30412053  /  18060001
  • Total Coliform
    • A Source Unknown

0.06 Miles

2010

5A

2027


Region 3

Pacific Ocean at Waddell Creek Beach

Coastal & Bay Shoreline

30420013  /  18060001
  • Total Coliform
    • A Source Unknown

0.03 Miles

2010

5A

2027


Region 3

Pacific Ocean, Pescadero Pt. to Pt. Ano Nuevo

Coastal & Bay Shoreline

2202.400104,2202.400105,2202.400200,2202.400301,2202.400302,3304.200001,3304.200002,3304.200003,3304.200004  / 
  • Mercury
    • A Source Unknown

20851 Miles

2020

5A

2033


Region 3

Pacific Ocean, Pt. Buchon to Pt. San Luis

Ocean

3310.240201,3310.250001,3310.250002,3310.250003,3310.260004  / 
  • Mercury
    • A Source Unknown

27440 Acres

2020

5A

2033


Region 3

Pacific Ocean, Pt. Pinos to Pt. Piedras Blancas

Coastal & Bay Shoreline

3307.000502,3308.000101,3308.000102,3308.000103,3308.000104,3308.000105,3308.000201,3308.000202,3308.000203,3308.000204,(Total Count: 32)  / 
  • Dieldrin
    • A Source Unknown

148106 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

148106 Miles

2020

5A

2033


Region 3

Pajaro River

River & Stream

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

30 Miles

2020

5A

2035
  • Boron
    • A Source Unknown

30 Miles

2006

5A

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

30 Miles

2010

5A

2035
  • Chloride
    • A Source Unknown

30 Miles

2010

5A

2027
  • Chlorpyrifos
    • Agriculture

30 Miles

2010

5B

2013
  • Chromium
    • No Source Analysis Available

30 Miles

2014

5A

2035
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

30 Miles

2014

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

30 Miles

2014

5A

2035
  • Dieldrin
    • A Source Unknown

30 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

30 Miles

2010

5A

2035
    The spatial extent of the impaired segment is limited to the reaches above the Highway 1 bridge, where the salinity is less than 1 ppt in 95 percent or more of the samples and therefore the segment where the water quality objective is applicable.
  • Imidacloprid
    • No Source Analysis Available

30 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • Manganese
    • No Source Analysis Available

30 Miles

2020

5A

2035
  • Nickel
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

30 Miles

2006

5B

2016
  • Oxyfluorfen
    • No Source Analysis Available

30 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

30 Miles

2014

5B

2027
  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • Sedimentation/Siltation
    • Agriculture
    • Domestic Animals/Livestock
    • Grazing-Related Sources
    • Habitat Modification
    • Highway/Road/Bridge Construction
    • Hydromodification
    • Land Development
    • Logging Road Construction/Maintenance
    • Urban Runoff/Storm Sewers

30 Miles

1996

5B

2007
  • Selenium
    • No Source Analysis Available

30 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown

30 Miles

2010

5A

2027
  • Toxicity
    • Agriculture

30 Miles

2014

5B

2023
  • Turbidity
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • Urea
    • No Source Analysis Available

30 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

30 Miles

2010

5A

2035


Region 3

Pajaro River Estuary

Estuary

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

24 Acres

2014

5A

2035
  • Diazinon
    • Agriculture

24 Acres

2010

5B

2013
  • Malathion
    • A Source Unknown

24 Acres

2014

5A

2035
  • Nickel
    • No Source Analysis Available

24 Acres

2020

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

24 Acres

2014

5A

2035
  • Permethrin
    • No Source Analysis Available

24 Acres

2014

5A

2035
  • Temperature, water
    • No Source Analysis Available

24 Acres

2014

5A

2035
  • Toxicity
    • Agriculture

24 Acres

2014

5B

2023
  • pH
    • No Source Analysis Available

24 Acres

2014

5A

2035


Region 3

Pennington Creek

River & Stream

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

5.5 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

5.5 Miles

2010

5A

2035


Region 3

Pico Creek

River & Stream

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

1.1 Miles

2014

5A

2035
    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).


Region 3

Pinto Lake

Lake & Reservoir

3305.100301  /  18060002
  • Ammonia
    • A Source Unknown

105 Acres

2014

5A

2025
  • Chlorophyll-a
    • A Source Unknown

105 Acres

2010

5A

2018
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

105 Acres

2014

5A

2027
  • Dieldrin
    • A Source Unknown

105 Acres

2014

5A

2035
  • Mercury
    • A Source Unknown

105 Acres

2010

5A

2033
  • Microcystins
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Groundwater Loadings
    • Internal Nutrient Cycling (primarily lakes)
    • Onsite Wastewater Systems (Septic Tanks)
    • Other
    • Urban Runoff/Storm Sewers

105 Acres

2020

5A

2025
  • Oxygen, Dissolved
    • Agriculture
    • Atmospheric Deposition
    • Grazing-Related Sources
    • Groundwater Loadings
    • Internal Nutrient Cycling (primarily lakes)
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

105 Acres

2014

5A

2025
  • Scum/Foam-unnatural
    • A Source Unknown

105 Acres

2010

5A

2018
  • pH
    • No Source Analysis Available

105 Acres

2010

5A

2035


Region 3

Pismo Creek

River & Stream

3310.260003,3310.260004  /  18060006
  • Aluminum
    • No Source Analysis Available

5.6 Miles

2020

5A

2035
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

5.6 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

5.6 Miles

2010

5A

2035
  • Manganese
    • No Source Analysis Available

5.6 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

5.6 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

5.6 Miles

2010

5A

2035


Region 3

Port San Luis

Bay & Harbor

3310.240201,3310.250002  /  18060006
  • Arsenic
    • A Source Unknown

390 Acres

2010

5A

2027
  • Dieldrin
    • A Source Unknown

390 Acres

2010

5A

2027
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • No Source Analysis Available

390 Acres

2014

5A

2035
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

390 Acres

2014

5A

2027


Region 3

Porter Gulch Creek

River & Stream

3304.130103,3304.130104  /  18060001
  • Enterococcus
    • A Source Unknown

2.3 Miles

2010

5A

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

2.3 Miles

2010

5A

2027


Region 3

Prefumo Creek

River & Stream

3310.240102,3310.240202  /  18060006
  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.2 Miles

2014

5A

2035
  • Nitrate
    • Agriculture
    • Natural Sources

6.2 Miles

2006

5B

2007
  • Oxygen, Dissolved
    • No Source Analysis Available

6.2 Miles

2014

5A

2035
  • Selenium
    • No Source Analysis Available

6.2 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

6.2 Miles

2014

5A

2035


Region 3

Quail Creek

River & Stream

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

4.2 Miles

2014

5B

2015
  • Bensulide
    • No Source Analysis Available

4.2 Miles

2020

5A

2035
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

4.2 Miles

2014

5B

2018
  • Chlorpyrifos
    • Agriculture

4.2 Miles

2010

5B

2011
  • Copper
    • No Source Analysis Available

4.2 Miles

2020

5A

2035
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

4.2 Miles

2014

5B

2018
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

4.2 Miles

2014

5B

2018
  • Diazinon
    • Agriculture

4.2 Miles

2010

5B

2011
  • Dimethoate
    • No Source Analysis Available

4.2 Miles

2014

5A

2035
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Illegal dumping

4.2 Miles

2010

5B

2012
  • Imidacloprid
    • No Source Analysis Available

4.2 Miles

2020

5A

2027
  • Imidacloprid guanidine
    • No Source Analysis Available

4.2 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

4.2 Miles

2020

5A

2035
  • Malathion
    • A Source Unknown

4.2 Miles

2014

5A

2025
  • Methomyl
    • No Source Analysis Available

4.2 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

4.2 Miles

2006

5B

2015
  • Organophosphate Pesticides
    • Agriculture

4.2 Miles

2020

5B

2011
  • Oxyfluorfen
    • No Source Analysis Available

4.2 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

4.2 Miles

2014

5B

2015
  • Permethrin
    • A Source Unknown

4.2 Miles

2014

5A

2027
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

4.2 Miles

2014

5B

2018
  • Temperature, water
    • No Source Analysis Available

4.2 Miles

2010

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

4.2 Miles

2014

5B

2018
  • Turbidity
    • A Source Unknown

4.2 Miles

2010

5A

2035
  • Zinc
    • No Source Analysis Available

4.2 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

4.2 Miles

2010

5A

2035


Region 3

Rincon Creek

River & Stream

3315.340002  /  18060013
  • Ammonia
    • A Source Unknown

10 Miles

2014

5A

2035
  • Arsenic
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Boron
    • No Source Analysis Available

10 Miles

2006

5A

2035
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Copper
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Nickel
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Nitrate
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Selenium
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Specific Conductivity
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Total Dissolved Solids
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Urea
    • No Source Analysis Available

10 Miles

2020

5A

2035


Region 3

Rodeo Creek Gulch

River & Stream

3304.130103,3304.130104  /  18060001
  • Turbidity
    • A Source Unknown

5.6 Miles

2010

5A

2023
  • pH
    • A Source Unknown

5.6 Miles

2010

5A

2027


Region 3

Romero Creek

River & Stream

3315.330001  /  18060013
  • pH
    • A Source Unknown

5.1 Miles

2010

5A

2027


Region 3

Salinas Reclamation Canal

River & Stream

3309.110000  /  18060011
  • Aluminum
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2015
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2018
  • Chlorpyrifos
    • Agriculture

13 Miles

2010

5B

2011
  • Clothianidin
    • No Source Analysis Available

13 Miles

2020

5A

2027
  • Copper
    • No Source Analysis Available

13 Miles

2010

5A

2035
  • Cyfluthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2018
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2018
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2018
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Deltamethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B

2018
  • Diazinon
    • Agriculture

13 Miles

2010

5B

2011
  • Dimethoate
    • No Source Analysis Available

13 Miles

2014

5A

2035
  • Disulfoton
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Transient encampments
    • Urban Runoff/Storm Sewers

13 Miles

2010

5B

2012
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Transient encampments
    • Urban Runoff/Storm Sewers

13 Miles

2002

5B

2012
  • Fenpropathrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B

2018
  • Imidacloprid
    • No Source Analysis Available

13 Miles

2020

5A

2027
  • Imidacloprid guanidine
    • No Source Analysis Available

13 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Malathion
    • A Source Unknown

13 Miles

2014

5A

2025
  • Methomyl
    • No Source Analysis Available

13 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

13 Miles

2010

5B

2015
  • Organophosphate Pesticides
    • Agriculture

13 Miles

2020

5B

2011
  • Permethrin
    • A Source Unknown

13 Miles

2014

5A

2027
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2018
  • Priority Organics
    • A Source Unknown

13 Miles

1996

5A

2027
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2020

5B

2018
  • Thiamethoxam
    • No Source Analysis Available

13 Miles

2020

5A

2027
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

13 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

13 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

13 Miles

2010

5A

2035


Region 3

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

River & Stream

3309.110000  /  18060011
  • Aluminum
    • No Source Analysis Available

36 Miles

2020

5A

2035
  • Arsenic
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • Benthic Community Effects
    • A Source Unknown
    • Channelization
    • Flow Alteration/Regulation/Modification
    • Hydromodification

36 Miles

2014

5A

2027
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

36 Miles

2014

5B

2018
  • Chlordane
    • A Source Unknown

36 Miles

2010

5A

2035
  • Chloride
    • A Source Unknown

36 Miles

2010

5A

2035
  • Chromium
    • No Source Analysis Available

36 Miles

2014

5A

2035
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

36 Miles

2014

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

36 Miles

2014

5A

2035
  • Dieldrin
    • A Source Unknown

36 Miles

2010

5A

2035
  • Enterococcus
    • A 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
    The spatial extent of the impaired segment is limited to the reach upstream of tidal influence, near Blanco Drain, where the salinity is less than 1 ppt in 95 percent or more of the samples.
  • Fipronil
    • No Source Analysis Available

36 Miles

2014

5A

2035
  • Imidacloprid
    • No Source Analysis Available

36 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • Manganese
    • No Source Analysis Available

36 Miles

2020

5A

2035
  • Nickel
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

36 Miles

2006

5B

2015
  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • Selenium
    • No Source Analysis Available

36 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • Temperature, water
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • Total Dissolved Solids
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • Toxaphene
    • A Source Unknown

36 Miles

1994

5A

2027
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

36 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

36 Miles

2010

5A

2035
  • Urea
    • No Source Analysis Available

36 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

36 Miles

2010

5A

2035


Region 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
  • Aluminum
    • No Source Analysis Available

73 Miles

2020

5A

2035
  • Benthic Community Effects
    • A Source Unknown

73 Miles

2014

5A

2034
  • Lead
    • No Source Analysis Available

73 Miles

2020

5A

2035
  • Temperature, water
    • No Source Analysis Available

73 Miles

2010

5A

2035
  • Toxicity
    • No Source Analysis Available

73 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

73 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

73 Miles

2010

5A

2035


Region 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
    • A Source Unknown

50 Miles

2002

5A

2027
  • Oxygen, Dissolved
    • No Source Analysis Available

50 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown

50 Miles

2002

5A

2027
  • Toxicity
    • No Source Analysis Available

50 Miles

2014

5A

2035
  • pH
    • No Source Analysis Available

50 Miles

2010

5A

2035


Region 3

Salinas River Lagoon (North)

Estuary

30911010  /  18060011
  • Chlorpyrifos
    • Agriculture

197 Acres

2014

5B

2011
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

197 Acres

2014

5A

2018
  • Nutrients
    • Agriculture

197 Acres

1992

5B

2015
  • Toxicity
    • Agriculture

197 Acres

2014

5B

2011
  • pH
    • No Source Analysis Available

197 Acres

2014

5A

2035


Region 3

Salinas River Refuge Lagoon (South)

Estuary

30911010  /  18060011
  • Turbidity
    • A Source Unknown

30 Acres

2010

5A

2023
  • pH
    • A Source Unknown

30 Acres

2010

5A

2027


Region 3

Salsipuedes Creek (Santa Barbara County)

River & Stream

3314.200103,3314.200202,3314.200203  /  18060013
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

9 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

9 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

9 Miles

2010

5A

2035


Region 3

Salsipuedes Creek (Santa Cruz County)

River & Stream

3305.100301  /  18060002
  • Aluminum
    • No Source Analysis Available

2.6 Miles

2020

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

2.6 Miles

2010

5B

2012
  • Lead
    • No Source Analysis Available

2.6 Miles

2020

5A

2035
  • Manganese
    • No Source Analysis Available

2.6 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.6 Miles

2010

5B

2018
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

2.6 Miles

2014

5B

2027
  • Toxicity
    • No Source Analysis Available

2.6 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

2.6 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

2.6 Miles

2010

5A

2035


Region 3

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

River & Stream

31300050  /  18060009
  • Aluminum
    • No Source Analysis Available

14 Miles

2020

5A

2035
  • Ammonia
    • No Source Analysis Available

14 Miles

2014

5A

2035
  • Arsenic
    • No Source Analysis Available

14 Miles

2010

5A

2035
  • Boron
    • A Source Unknown

14 Miles

2002

5A

2027
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

14 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

14 Miles

2010

5A

2035
    The spatial extent of the impaired segment is limited to the reaches above the Highway 1 bridge (and Barca Slough) where the salinity is less than 1 ppt in 95 percent or more of the samples and therefore the E. coli water quality objective is applicable.
  • Nitrate
    • Agriculture

14 Miles

2010

5C

2025
  • Oxygen, Dissolved
    • No Source Analysis Available

14 Miles

2014

5A

2035
    The impaired segment is from the creek mouth up to the western edge of Barka Slough.
  • Selenium
    • No Source Analysis Available

14 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

14 Miles

2010

5A

2035
  • Toxicity
    • No Source Analysis Available

14 Miles

2014

5A

2035
  • Urea
    • No Source Analysis Available

14 Miles

2020

5A

2035


Region 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
  • DDT (Dichlorodiphenyltrichloroethane)
    • No Source Analysis Available

5379 Acres

2014

5A

2035
  • Mercury
    • A Source Unknown

5379 Acres

2010

5A

2018


Region 3

San Antonio River (below San Antonio Reservoir)

River & Stream

3309.810504,3309.810505,3309.810507,3309.830000  /  18060005
  • Escherichia coli (E. coli)
    • Domestic Animals/Livestock
    • Natural Sources

8.8 Miles

2010

5B

2011
  • pH
    • No Source Analysis Available

8.8 Miles

2010

5A

2035


Region 3

San Benito River

River & Stream

3305.200402,3305.200502,3305.300200,3305.500106,3305.500201,3305.500202,3305.500203,3305.500205,3305.500206,3305.500301,(Total Count: 16)  /  18060002
  • Aluminum
    • No Source Analysis Available

87 Miles

2020

5A

2035
  • Boron
    • A Source Unknown

87 Miles

2010

5A

2027
  • Copper
    • No Source Analysis Available

87 Miles

2020

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

87 Miles

2010

5A

2035
    The spatial extent of the impaired segment is limited to the reach upstream of the station 305BRI, where the salinity is less than 1 ppt in 95 percent or more of the samples.
  • Lead
    • No Source Analysis Available

87 Miles

2020

5A

2035
  • Manganese
    • No Source Analysis Available

87 Miles

2020

5A

2035
  • Sedimentation/Siltation
    • Agriculture
    • Grazing-Related Sources
    • Harvesting, Restoration, Residue Management
    • Highway/Road/Bridge Runoff
    • Hydromodification
    • Road Construction
    • Surface Mining
    • Urban Runoff/Storm Sewers

87 Miles

1990

5B

2007
  • Specific Conductivity
    • No Source Analysis Available

87 Miles

2014

5A

2035
  • Toxicity
    • No Source Analysis Available

87 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

87 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

87 Miles

2010

5A

2035


Region 3

San Bernardo Creek

River & Stream

3310.220001,3310.220002  /  18060006
  • Escherichia coli (E. coli)
    • No Source Analysis Available

7.1 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

7.1 Miles

2010

5A

2035


Region 3

San Jose Creek (Monterey County)

River & Stream

3308.000104  /  18060006
  • pH
    • No Source Analysis Available

9 Miles

2010

5A

2035


Region 3

San Jose Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

9.9 Miles

2010

5A

2035
  • Enterococcus
    • A Source Unknown

9.9 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • No Source Analysis Available

9.9 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

9.9 Miles

2010

5A

2035
  • Specific Conductivity
    • No Source Analysis Available

9.9 Miles

2014

5A

2035


Region 3

San Juan Creek (San Benito County)

River & Stream

30520050  /  18060002
  • Ammonia
    • A Source Unknown

7.3 Miles

2014

5A

2035
  • Arsenic
    • No Source Analysis Available

7.3 Miles

2020

5A

2035
  • Lead
    • No Source Analysis Available

7.3 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

7.3 Miles

2010

5B

2018
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.3 Miles

2014

5B

2018
  • Selenium
    • No Source Analysis Available

7.3 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

7.3 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

7.3 Miles

2010

5A

2035


Region 3

San Lorenzo Creek (Monterey County)

River & Stream

3309.400000,3309.700201,3309.700202,3309.700203,3309.700204,3309.700205,3309.700507,3309.700508,3309.700509,3309.700511  /  18060005
  • Boron
    • A Source Unknown

48 Miles

2002

5A

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

48 Miles

2010

5A

2027
  • Sodium
    • A Source Unknown

48 Miles

2010

5A

2027
  • Specific Conductivity
    • No Source Analysis Available

48 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

48 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

48 Miles

2010

5A

2035


Region 3

San Lorenzo River

River & Stream

3304.120101,3304.120102,3304.120201,3304.120202,3304.120203,3304.120503,3304.120600  /  18060001
  • Aluminum
    • No Source Analysis Available

29 Miles

2020

5A

2035
  • Chlordane
    • A Source Unknown

29 Miles

2010

5A

2035
  • 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
    • A Source Unknown

29 Miles

2010

5B

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

29 Miles

2014

5A

2027
  • Lead
    • No Source Analysis Available

29 Miles

2010

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Nonpoint Source
    • Onsite Wastewater Systems (Septic Tanks)
    • Other Urban Runoff
    • Urban Runoff/Storm Sewers
    • Wastewater

29 Miles

2014

5B

2003
  • PCBs (Polychlorinated biphenyls)
    • No Source Analysis Available

29 Miles

2010

5A

2035
  • 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
    • No Source Analysis Available

29 Miles

2010

5A

2035
  • Toxicity
    • No Source Analysis Available

29 Miles

2014

5A

2035


Region 3

San Luis Obispo Creek (below Osos Street)

River & Stream

3310.240101,3310.240102,3310.240201,3310.240202  /  18060006
  • Aluminum
    • No Source Analysis Available

10 Miles

2020

5A

2035
  • Benthic Community Effects
    • A Source Unknown

10 Miles

2014

5A

2027
  • Chloride
    • A Source Unknown

10 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Lead
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Nitrate
    • Agriculture
    • Municipal Point Sources
    • Natural Sources
    • Nonpoint Source
    • Other Urban Runoff

10 Miles

2014

5B

2007
  • Oxygen, Dissolved
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown

10 Miles

2010

5A

2027
  • Toxicity
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Urea
    • No Source Analysis Available

10 Miles

2020

5A

2035


Region 3

San Luisito Creek

River & Stream

3310.220001,3310.220002  /  18060006
  • Escherichia coli (E. coli)
    • No Source Analysis Available

7.1 Miles

2014

5A

2035
  • pH
    • No Source Analysis Available

7.1 Miles

2014

5A

2035


Region 3

San Miguelito Creek

River & Stream

3314.100200,3314.100500  /  18060013
  • Chloride
    • A Source Unknown

10 Miles

2010

5A

2035
  • Nitrate
    • A Source Unknown

10 Miles

2010

5A

2025
  • Oxygen, Dissolved
    • No Source Analysis Available

10 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Temperature, water
    • No Source Analysis Available

10 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

2023
  • pH
    • No Source Analysis Available

10 Miles

2010

5A

2035


Region 3

San Pedro Creek (Santa Barbara County)

River & Stream

3315.310002,3315.310003  /  18060013
  • Enterococcus
    • A Source Unknown

6.3 Miles

2010

5A

2027
  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.3 Miles

2010

5A

2035
  • Fecal Coliform
    • A Source Unknown

6.3 Miles

2010

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

6.3 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

6.3 Miles

2010

5A

2035


Region 3

San Simeon Creek

River & Stream

3310.130101,3310.130102,3310.130103  /  18060006
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

5.7 Miles

2010

5A

2035
    Impaired length for Chloride is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.
  • Nitrate
    • Wastewater - land disposal

5.7 Miles

2010

5A

2035
    The impaired reach extends from the creek mouth to the upper extent of the lagoon in the dry season, near Washburn Campground.
  • Oxygen, Dissolved
    • No Source Analysis Available

5.7 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

5.7 Miles

2010

5A

2035
    Impaired length for Sodium is the Creek mouth to the first San Simeon Creek Road crossing, approximately 4 miles.
  • Toxicity
    • No Source Analysis Available

5.7 Miles

2014

5A

2035


Region 3

San Vicente Creek (Santa Cruz County)

River & Stream

3304.110203  /  18060001
  • Aluminum
    • No Source Analysis Available

9.2 Miles

2020

5A

2035


Region 3

Santa Barbara Harbor

Bay & Harbor

3315.320001,3315.320002,3315.320003,3315.330002  /  18060013
  • Arsenic
    • A Source Unknown
    • No Source Analysis Available

98 Acres

2010

5A

2035
  • Copper
    • No Source Analysis Available

98 Acres

2010

5A

2035
  • Dieldrin
    • A Source Unknown

98 Acres

2010

5A

2027
  • Mercury
    • A Source Unknown

98 Acres

2010

5A

2033
  • Oxygen, Dissolved
    • A Source Unknown

98 Acres

2014

5A

2027


Region 3

Santa Cruz Harbor

Bay & Harbor

30412053  /  18060001
  • Arsenic
    • A Source Unknown

22 Acres

2010

5A

2027
  • Copper
    • A Source Unknown

22 Acres

2010

5A

2027
  • Dieldrin
    • A Source Unknown

22 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

22 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

22 Acres

2014

5A

2027


Region 3

Santa Margarita Lake

Lake & Reservoir

3309.811302,3309.811303,3309.811307  /  18060005
  • Mercury
    • A Source Unknown

720 Acres

2014

5A

2033


Region 3

Santa Maria River

River & Stream

3312.100101,3312.100300  /  18060008
  • Aluminum
    • No Source Analysis Available

25 Miles

2024

5A

2035
  • Arsenic
    • No Source Analysis Available

25 Miles

2010

5A

2025
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

25 Miles

2010

5A

2035
  • Chlorpyrifos
    • Agriculture

25 Miles

2006

5B

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

25 Miles

2014

5B

2015
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2014

5B

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

25 Miles

1800

5B

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

25 Miles

1800

5B

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

25 Miles

2006

5B

2015
  • Diazinon
    • Agriculture

25 Miles

1800

5B

2015
  • Dieldrin
    • Agriculture

25 Miles

2006

5B

2015
  • Endrin
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2006

5B

2015
  • Imidacloprid
    • No Source Analysis Available

25 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

25 Miles

2010

5A

2035
  • Linuron
    • No Source Analysis Available

25 Miles

2020

5A

2035
  • Malathion
    • Agriculture

25 Miles

2014

5B

2015
  • Manganese
    • No Source Analysis Available

25 Miles

2024

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

25 Miles

2002

5B

2016
  • Oxyfluorfen
    • No Source Analysis Available

25 Miles

2020

5A

2035
  • Prometryn
    • No Source Analysis Available

25 Miles

2020

5A

2035
  • Selenium
    • No Source Analysis Available

25 Miles

2020

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

25 Miles

2010

5A

2035
  • Specific Conductivity
    • A Source Unknown

25 Miles

2014

5A

2035
  • Temperature, water
    • No Source Analysis Available

25 Miles

2010

5A

2035
  • Total Dissolved Solids
    • No Source Analysis Available

25 Miles

2020

5A

2035
  • Toxaphene
    • Agriculture

25 Miles

2024

5B

2015
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

25 Miles

2014

5B

2015
  • Turbidity
    • No Source Analysis Available

25 Miles

2010

5A

2023
  • Urea
    • No Source Analysis Available

25 Miles

2020

5A

2035


Region 3

Santa Maria River Estuary

Estuary

3312.100300  /  18060008
  • Chlorpyrifos
    • Agriculture

5.6 Acres

2014

5B

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

5.6 Acres

2014

5B

2015
  • DDE (Dichlorodiphenyldichloroethylene)
    • Agriculture

5.6 Acres

2014

5B

2015
  • Diazinon
    • Agriculture

5.6 Acres

2014

5B

2015
  • Malathion
    • Agriculture

5.6 Acres

2014

5B

2015
  • Oxyfluorfen
    • No Source Analysis Available

5.6 Acres

2020

5A

2035
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.6 Acres

2014

5B

2016
  • Prometryn
    • No Source Analysis Available

5.6 Acres

2014

5A

2035
  • Total Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

5.6 Acres

2010

5B

2013
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

5.6 Acres

2014

5B

2015
  • pH
    • No Source Analysis Available

5.6 Acres

2014

5A

2035


Region 3

Santa Monica Creek

River & Stream

3315.340003,3315.340004  /  18060013
  • Escherichia coli (E. coli)
    • No Source Analysis Available

5 Miles

2014

5A

2035
  • Temperature, water
    • No Source Analysis Available

5 Miles

2010

5A

2035
  • Turbidity
    • A Source Unknown

5 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

5 Miles

2010

5A

2035


Region 3

Santa Rita Creek (Monterey County)

River & Stream

3309.110000,3309.200003  /  18060011
  • Aluminum
    • No Source Analysis Available

11 Miles

2020

5A

2035
  • Ammonia
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

11 Miles

2014

5B

2015
  • Clothianidin
    • No Source Analysis Available

11 Miles

2020

5A

2027
  • Cyhalothrin, Lambda
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

2020

5B

2018
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Illegal dumping
    • Urban Runoff/Storm Sewers

11 Miles

2010

5B

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

11 Miles

2010

5B

2012
  • Imidacloprid
    • No Source Analysis Available

11 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

11 Miles

2020

5A

2035
  • Malathion
    • No Source Analysis Available

11 Miles

2020

5A

2025
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

11 Miles

2006

5B

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

11 Miles

2014

5B

2015
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

2020

5B

2018
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

11 Miles

2010

5A

2035
  • Temperature, water
    • No Source Analysis Available

11 Miles

2010

5A

2035
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

11 Miles

2014

5B

2035
  • Turbidity
    • No Source Analysis Available

11 Miles

2010

5A

2025


Region 3

Santa Rosa Creek (San Luis Obispo County)

River & Stream

3310.140101,3310.140102,3310.140201  /  18060010
  • Oxygen, Dissolved
    • No Source Analysis Available

15 Miles

2014

5A

2035
  • Total Dissolved Solids
    • A Source Unknown

15 Miles

2014

5A

2027
  • Toxicity
    • No Source Analysis Available

15 Miles

2014

5A

2035


Region 3

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

River & Stream

3314.100102,3314.100500,3314.200101,3314.200103,3314.200104,3314.200203,3314.300201,3314.300203,3314.400102,3314.400701,(Total Count: 12)  /  18060010
  • Benthic Community Effects
    • A Source Unknown

41 Miles

2014

5A

2034
  • Molybdenum
    • No Source Analysis Available

41 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

41 Miles

2014

5A

2025
  • Sedimentation/Siltation
    • A Source Unknown

41 Miles

2006

5A

2027
  • Sodium
    • A Source Unknown

41 Miles

2010

5A

2027
  • Temperature, water
    • No Source Analysis Available

41 Miles

2010

5A

2035
  • Total Dissolved Solids
    • A Source Unknown

41 Miles

2010

5A

2027
  • Toxicity
    • No Source Analysis Available

41 Miles

2014

5A

2035


Region 3

Santa Ynez River (above Lake Cachuma)

River & Stream

3314.510501,3314.510502,3314.510504,3314.510505  /  18060010
  • Temperature, water
    • No Source Analysis Available

22 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

22 Miles

2014

5A

2023
  • Turbidity
    • No Source Analysis Available

22 Miles

2010

5A

2035


Region 3

Santa Ynez River (below city of Lompoc to Ocean)

River & Stream

3314.100500,3314.100602  /  18060010
  • Benthic Community Effects
    • A Source Unknown

6.7 Miles

2014

5A

2034
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

6.7 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.7 Miles

2010

5A

2035
    The spatial extent of the impaired segment is limited to the reach upstream of the 13th street bridge, where the salinity is less than 1 ppt in 95 percent or more of the samples.
  • Lead
    • No Source Analysis Available

6.7 Miles

2010

5A

2035
  • Molybdenum
    • No Source Analysis Available

6.7 Miles

2020

5A

2035
  • Nitrate
    • A Source Unknown

6.7 Miles

2006

5A

2025
  • Oxygen, Dissolved
    • No Source Analysis Available

6.7 Miles

2014

5A

2025
  • Sedimentation/Siltation
    • A Source Unknown

6.7 Miles

1996

5A

2027
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

6.7 Miles

2010

5A

2035
  • Temperature, water
    • No Source Analysis Available

6.7 Miles

2010

5A

2035
  • Total Dissolved Solids
    • No Source Analysis Available

6.7 Miles

2010

5A

2035
  • Toxicity
    • No Source Analysis Available

6.7 Miles

2014

5A

2035


Region 3

Schwan Lake

Lake & Reservoir

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

23 Acres

2010

5A

2027
  • Nutrients
    • A Source Unknown

23 Acres

1992

5A

2027
  • Total Coliform
    • A Source Unknown

23 Acres

2010

5A

2027


Region 3

Scott Creek Lagoon

River & Stream

3304.110202  / 
  • Aluminum
    • No Source Analysis Available

0.45 Miles

2020

5A

2035
  • Chloride
    • Natural Sources

0.45 Miles

2014

5A

2027
  • Copper
    • No Source Analysis Available

0.45 Miles

2014

5A

2035
  • Sodium
    • Natural Sources

0.45 Miles

2014

5A

2027
  • Total Coliform
    • No Source Analysis Available

0.45 Miles

2020

5A

2035


Region 3

Shuman Canyon Creek

River & Stream

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

8.7 Miles

2006

5A

2027


Region 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

2035


Region 3

Sloans Canyon Creek

River & Stream

3314.100300,3314.100500  /  18060013
  • Ammonia
    • A Source Unknown

6.7 Miles

2014

5A

2023
  • Turbidity
    • A Source Unknown

6.7 Miles

2014

5A

2023
  • pH
    • A Source Unknown

6.7 Miles

2014

5A

2027


Region 3

Soda Lake

Saline Lake

31100050  /  18060003
  • Ammonia
    • A Source Unknown

2627 Acres

2014

5A

2023


Region 3

Soquel Creek

River & Stream

3304.130101,3304.130102,3304.130103,3304.130104,3304.130105  /  18060001
  • Aluminum
    • No Source Analysis Available

18 Miles

2020

5A

2035
  • Enterococcus
    • A 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
  • Lead
    • No Source Analysis Available

18 Miles

2014

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

18 Miles

2014

5A

2035
  • Toxicity
    • No Source Analysis Available

18 Miles

2014

5A

2035
  • Urea
    • No Source Analysis Available

18 Miles

2020

5A

2035


Region 3

Soquel Lagoon

Estuary

30413014  /  18060001
  • Indicator Bacteria
    • A Source Unknown

1.2 Acres

2014

5B

2010
  • Oxygen, Dissolved
    • No Source Analysis Available

1.2 Acres

2020

5A

2035
  • Sedimentation/Siltation
    • A Source Unknown

1.2 Acres

1992

5A

2027
  • Temperature, water
    • No Source Analysis Available

1.2 Acres

2020

5A

2035


Region 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

2035
  • pH
    • No Source Analysis Available

7.7 Miles

2010

5A

2035


Region 3

Struve Slough

River & Stream

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

2.8 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

2.8 Miles

2014

5A

2035
  • Fecal Coliform
    • See TMDL documentation

2.8 Miles

2014

5B

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

2.8 Miles

2014

5B

2018
  • Toxicity
    • A Source Unknown

2.8 Miles

2014

5A

2023
  • Turbidity
    • No Source Analysis Available

2.8 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

2.8 Miles

2010

5A

2035


Region 3

Sycamore Creek

River & Stream

3315.320002  /  18060013
  • Boron
    • No Source Analysis Available

3.9 Miles

2010

5A

2035
  • Chloride
    • No Source Analysis Available

3.9 Miles

2010

5A

2035
  • Copper
    • No Source Analysis Available

3.9 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • No Source Analysis Available

3.9 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

3.9 Miles

2010

5A

2035
  • Temperature, water
    • No Source Analysis Available

3.9 Miles

2010

5A

2035
  • Turbidity
    • No Source Analysis Available

3.9 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

3.9 Miles

2010

5A

2035


Region 3

Tecolote Creek (Santa Barbara County)

River & Stream

3315.100103  /  18060013
  • Boron
    • No Source Analysis Available

6.9 Miles

2010

5A

2035
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

6.9 Miles

2010

5A

2035
  • Copper
    • No Source Analysis Available

6.9 Miles

2020

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

6.9 Miles

2014

5A

2035
    Spatial extent is limited to the monitoring station
  • Oxygen, Dissolved
    • No Source Analysis Available

6.9 Miles

2014

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

6.9 Miles

2010

5A

2035
  • Specific Conductivity
    • No Source Analysis Available

6.9 Miles

2014

5A

2035
  • Total Dissolved Solids
    • No Source Analysis Available

6.9 Miles

2020

5A

2035


Region 3

Tecolotito Creek

River & Stream

3315.310003  / 
  • Chloride
    • A Source Unknown

0.87 Miles

2014

5A

2027
  • Enterococcus
    • A Source Unknown

0.87 Miles

2014

5A

2027
  • Nitrate
    • Agriculture

0.87 Miles

2014

5B

2014
  • Sodium
    • A Source Unknown

0.87 Miles

2014

5A

2027


Region 3

Tembladero Slough

River & Stream

3309.110000  /  18060011
  • Aluminum
    • No Source Analysis Available

3.4 Miles

2020

5A

2035
  • Bifenthrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2014

5B

2018
  • Chlordane
    • No Source Analysis Available

3.4 Miles

2014

5A

2035
  • Chlorophyll-a
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2010

5B

2015
  • Chlorpyrifos
    • Agriculture

3.4 Miles

2010

5B

2011
  • Chromium
    • No Source Analysis Available

3.4 Miles

2014

5A

2035
  • Clothianidin
    • No Source Analysis Available

3.4 Miles

2020

5A

2027
  • Copper
    • No Source Analysis Available

3.4 Miles

2010

5A

2035
  • Cypermethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2014

5B

2018
  • DDD (Dichlorodiphenyldichloroethane)
    • No Source Analysis Available

3.4 Miles

2014

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

3.4 Miles

2014

5A

2035
  • Diazinon
    • Agriculture

3.4 Miles

2010

5B

2011
  • Dieldrin
    • No Source Analysis Available

3.4 Miles

2010

5A

2035
  • Disulfoton
    • No Source Analysis Available

3.4 Miles

2020

5A

2035
  • Enterococcus
    • A Source Unknown

3.4 Miles

2010

5A

2027
  • Imidacloprid
    • No Source Analysis Available

3.4 Miles

2020

5A

2027
  • Lead
    • No Source Analysis Available

3.4 Miles

2010

5A

2035
  • Malathion
    • A Source Unknown

3.4 Miles

2014

5A

2025
  • Methomyl
    • No Source Analysis Available

3.4 Miles

2020

5A

2035
  • Nickel
    • No Source Analysis Available

3.4 Miles

2010

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2010

5B

2015
  • Oxyfluorfen
    • No Source Analysis Available

3.4 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

3.4 Miles

2014

5B

2015
  • Permethrin
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2014

5B

2018
  • Pyrethroids
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2020

5B

2018
  • Selenium
    • No Source Analysis Available

3.4 Miles

2020

5A

2035
  • Thiamethoxam
    • No Source Analysis Available

3.4 Miles

2020

5A

2027
  • Total Coliform
    • No Source Analysis Available

3.4 Miles

2010

5B

2012
  • Toxicity
    • Agriculture
    • Urban Runoff/Storm Sewers

3.4 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

3.4 Miles

2010

5A

2035
  • Urea
    • No Source Analysis Available

3.4 Miles

2020

5A

2035
  • pH
    • No Source Analysis Available

3.4 Miles

2010

5A

2035


Region 3

Tequisquita Slough

River & Stream

3305.300200  /  18060002
  • Chlorophyll-a
    • No Source Analysis Available

7.3 Miles

2010

5A

2035
  • Fecal Coliform
    • Collection System Failure
    • Domestic Animals/Livestock
    • Urban Runoff/Storm Sewers

7.3 Miles

2002

5B

2010
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources

7.3 Miles

2014

5B

2018
  • Selenium
    • No Source Analysis Available

7.3 Miles

2020

5A

2035
  • Toxicity
    • No Source Analysis Available

7.3 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

7.3 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

7.3 Miles

2010

5A

2035


Region 3

Toro Creek

River & Stream

3310.180000  /  18060006
  • Copper
    • No Source Analysis Available

11 Miles

2020

5A

2035


Region 3

Tres Pinos Creek

River & Stream

3305.300200,3305.500403,3305.500405,3305.500406,3305.500407,3305.500703,3305.500705  /  18060002
  • Boron
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • Escherichia coli (E. coli)
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • Sodium
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • Turbidity
    • No Source Analysis Available

30 Miles

2010

5A

2035
  • pH
    • Natural Sources
    • No Source Analysis Available

30 Miles

2010

5A

2035


Region 3

Tularcitos Creek

River & Stream

3307.000302,3307.000303,3307.000304  /  18060012
  • Chloride
    • A Source Unknown
    • No Source Analysis Available

14 Miles

2010

5A

2035
  • Sodium
    • A Source Unknown
    • No Source Analysis Available

14 Miles

2010

5A

2035


Region 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
    • A Source Unknown

4.5 Miles

2014

5A

2023


Region 3

Uvas Creek (above Uvas Reservoir)

River & Stream

3305.200101,3305.200105  /  18060002
  • Temperature, water
    • No Source Analysis Available

8.2 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

8.2 Miles

2010

5A

2035


Region 3

Uvas Creek (below Uvas Reservoir)

River & Stream

3305.200102,3305.200201,3305.300100,3305.300200  /  18060002
  • Aluminum
    • No Source Analysis Available

14 Miles

2020

5A

2035
  • Lead
    • No Source Analysis Available

14 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

14 Miles

2014

5B

2018
  • Turbidity
    • No Source Analysis Available

14 Miles

2010

5A

2035


Region 3

Uvas Reservoir

Lake & Reservoir

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

272 Acres

2010

5A

2018


Region 3

Valencia Creek

River & Stream

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

6.3 Miles

2020

5A

2035
  • Escherichia coli (E. coli)
    • Collection System Failure
    • Domestic Animals/Livestock
    • Domestic Pet Waste
    • Grazing-Related Sources
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.3 Miles

2014

5A

2035
  • Lead
    • No Source Analysis Available

6.3 Miles

2020

5A

2035
  • Sedimentation/Siltation
    • A Source Unknown

6.3 Miles

2002

5A

2027


Region 3

Waddell Creek Lagoon

River & Stream

3304.110101  / 
  • Arsenic
    • No Source Analysis Available

0.39 Miles

2014

5A

2035
  • Chloride
    • Natural Sources

0.39 Miles

2014

5A

2027
  • Selenium
    • No Source Analysis Available

0.39 Miles

2020

5A

2035
  • Sodium
    • Natural Sources

0.39 Miles

2014

5A

2027
  • pH
    • No Source Analysis Available

0.39 Miles

2014

5A

2035


Region 3

Warden Creek

River & Stream

3310.230003  /  18060006
  • Nitrate
    • Agriculture
    • Grazing-Related Sources

6 Miles

2010

5B

2005
  • Oxygen, Dissolved
    • No Source Analysis Available

6 Miles

2014

5A

2035
  • Toxicity
    • No Source Analysis Available

6 Miles

2014

5A

2035


Region 3

Watsonville Creek

River & Stream

30510030  /  18060011
  • Escherichia coli (E. coli)
    • No Source Analysis Available

5.1 Miles

2010

5A

2035
  • Nitrate
    • No Source Analysis Available

5.1 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • No Source Analysis Available

5.1 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

5.1 Miles

2010

5A

2035
  • pH
    • No Source Analysis Available

5.1 Miles

2010

5A

2035


Region 3

Watsonville Slough

River & Stream

3305.100301  /  18060002
  • Aluminum
    • No Source Analysis Available

6.2 Miles

2020

5A

2035
  • Chlorpyrifos
    • No Source Analysis Available

6.2 Miles

2010

5A

2035
  • Copper
    • No Source Analysis Available

6.2 Miles

2020

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • No Source Analysis Available

6.2 Miles

2014

5A

2035
  • Imidacloprid
    • No Source Analysis Available

6.2 Miles

2020

5A

2027
  • Malathion
    • A Source Unknown

6.2 Miles

2014

5A

2035
  • Nickel
    • No Source Analysis Available

6.2 Miles

2020

5A

2035
  • Nitrate
    • Agriculture
    • Domestic Animals/Livestock
    • Natural Sources
    • Urban Runoff/Storm Sewers

6.2 Miles

2014

5B

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

6.2 Miles

2014

5B

2018
  • Toxicity
    • No Source Analysis Available

6.2 Miles

2014

5A

2035
  • Turbidity
    • No Source Analysis Available

6.2 Miles

2010

5A

2035


Region 3

Willow Creek (Monterey County)

River & Stream

3308.000602,3308.000603  /  18060006
  • pH
    • No Source Analysis Available

4.8 Miles

2010

5A

2035


Region 3

Yerba Buena Creek

River & Stream

3309.811401  /  18060005
  • Oxygen, Dissolved
    • No Source Analysis Available

6 Miles

2014

5A

2035


Region 3

Zayante Creek

River & Stream

3304.120202,3304.120401,3304.120402  /  18060001
  • Aluminum
    • No Source Analysis Available

9.3 Miles

2020

5A

2035
  • Chlorpyrifos
    • A Source Unknown

9.3 Miles

2010

5B

2015
  • Sedimentation/Siltation
    • Channel Erosion
    • Habitat Modification
    • Other Urban Runoff
    • Removal of Riparian Vegetation
    • Road Construction

9.3 Miles

2002

5B

2004
  • Toxicity
    • No Source Analysis Available

9.3 Miles

2014

5A

2035


Region 4

Alamitos Bay

Bay & Harbor

40512000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

328 Acres

2006

5A

2019
  • Oxygen, Dissolved
    • A Source Unknown

328 Acres

2014

5A

2027


Region 4

Alhambra Wash

River & Stream

40531000  /  18070105
  • Ammonia
    • Other

6.9 Miles

2014

5A

2027


Region 4

Artesia-Norwalk Drain

River & Stream

40515010  /  18070104
  • Indicator Bacteria
    • A Source Unknown

2.5 Miles

2010

5B

2016
  • Selenium
    • A Source Unknown

2.5 Miles

2010

5A

2021


Region 4

Arundell Barranca (Ventura County)

River & Stream

40311000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

4.9 Miles

2014

5A

2027


Region 4

Balboa Lake

Lake & Reservoir

4412.210000  /  18070105
  • Ammonia
    • A Source Unknown

28 Acres

2014

5B

2004
  • Oxygen, Dissolved
    • A Source Unknown

28 Acres

2014

5A

2027
  • Toxicity
    • A Source Unknown

28 Acres

2014

5A

2027


Region 4

Ballona Creek

River & Stream

40513000  /  18070104
  • Copper
    • A Source Unknown

6.5 Miles

1800

5B

2005
  • Cyanide
    • A Source Unknown

6.5 Miles

1996

5A

2019
  • Indicator Bacteria
    • Nonpoint Source
    • Point Source

6.5 Miles

2014

5B

2007
  • Lead
    • A Source Unknown

6.5 Miles

2002

5B

2005
  • Toxicity
    • A 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
    • A Source Unknown

6.5 Miles

1996

5B

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

6.5 Miles

1996

5B

2007
  • Zinc
    • A Source Unknown

6.5 Miles

1996

5B

2005


Region 4

Boulder Creek (Ventura County)

River & Stream

40331000  /  18070102
  • Bifenthrin
    • A Source Unknown

6.5 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

6.5 Miles

2014

5A

2027


Region 4

Bouquet Canyon Creek (below Bouqet Reservoir)

River & Stream

40352000  /  18070102
  • Temperature, water
    • A Source Unknown

14 Miles

2014

5A

2029


Region 4

Bull Creek (Los Angeles County)

River & Stream

40521000  /  18070105
  • Ammonia
    • A Source Unknown

6.5 Miles

2014

5B

2004
  • Toxicity
    • A Source Unknown

6.5 Miles

2014

5A

2027


Region 4

Burbank Western Channel

River & Stream

40521000  /  18070105
  • Copper
    • A Source Unknown

13 Miles

2006

5B

2005
  • Cyanide
    • A Source Unknown

13 Miles

2006

5A

2019
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2010

5B

2012
  • Lead
    • A Source Unknown

13 Miles

2006

5B

2005
  • Selenium
    • A Source Unknown

13 Miles

2010

5A

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

13 Miles

1996

5B

2008


Region 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

2024

5B

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

4.3 Miles

1800

5B

2006
  • Copper
    • Nonpoint Source

4.3 Miles

2024

5B

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • Nonpoint Source

4.3 Miles

1996

5B

2005
  • Dieldrin
    • A Source Unknown

4.3 Miles

2006

5B

2006
  • Endosulfan
    • Agriculture-storm runoff

4.3 Miles

1988

5B

2006
  • Indicator Bacteria
    • A Source Unknown

4.3 Miles

2014

5A

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

4.3 Miles

2024

5B

2005
  • Sedimentation/Siltation
    • A 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
    • A Source Unknown

4.3 Miles

2010

5A

2021


Region 4

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

River & Stream

40312000  /  18070103
  • Ammonia
    • A Source Unknown

3.5 Miles

1996

5B

2003
  • Chlordane
    • A Source Unknown

3.5 Miles

1996

5B

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

3.5 Miles

2002

5B

2008
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3.5 Miles

1996

5B

2006
  • Dieldrin
    • A Source Unknown

3.5 Miles

2006

5B

2006
  • Indicator Bacteria
    • A Source Unknown

3.5 Miles

2014

5A

2027
  • Nitrate and Nitrite
    • Nonpoint Source
    • Point Source

3.5 Miles

1996

5B

2003
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3.5 Miles

1996

5B

2006
  • Sedimentation/Siltation
    • A 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
    • A Source Unknown

3.5 Miles

1988

5B

2019
  • Trash
    • A Source Unknown

3.5 Miles

2010

5A

2021


Region 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
    • A 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
    • A 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
    • A 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)
    • A Source Unknown

7.2 Miles

2014

5B

2005
  • Toxaphene (tissue & sediment)
    • Nonpoint Source

7.2 Miles

2016

5B

2005
  • Toxicity
    • A 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


Region 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
    • A 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
    • A 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


Region 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
    • A Source Unknown

15 Miles

1996

5B

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

15 Miles

2002

5B

2008
  • Chlorpyrifos
    • A Source Unknown

15 Miles

2006

5B

2006
  • DDT (sediment)
    • Nonpoint Source

15 Miles

2016

5B

2006
  • Diazinon
    • A Source Unknown

15 Miles

2006

5B

2006
  • Dieldrin
    • A Source Unknown

15 Miles

2006

5B

2006
  • Indicator Bacteria
    • A 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
    • A 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
    • A Source Unknown

15 Miles

1996

5B

2006


Region 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
    • A Source Unknown

14 Miles

2006

5B

2006
  • Diazinon
    • A Source Unknown

14 Miles

2006

5B

2006
  • Indicator Bacteria
    • A Source Unknown

14 Miles

2002

5A

2019
  • Organophosphate Pesticides
    • Agriculture
    • Municipal Point Sources

14 Miles

1996

5B

2006
  • Sedimentation/Siltation
    • A 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
    • A Source Unknown

14 Miles

1996

5B

2006
  • Trash
    • A Source Unknown

14 Miles

2010

5A

2021


Region 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
    • A 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
    • A Source Unknown

7.2 Miles

2006

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

7.2 Miles

1996

5B

2006
  • Diazinon
    • A Source Unknown

7.2 Miles

2002

5B

2006
  • Dieldrin
    • A Source Unknown

7.2 Miles

2006

5B

2006
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

7.2 Miles

1996

5B

2006
  • Sedimentation/Siltation
    • A 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
    • A Source Unknown

7.2 Miles

1988

5B

2006


Region 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
    • A Source Unknown

1.7 Miles

2006

5B

2006
  • DDT (tissue)
    • Nonpoint Source

1.7 Miles

2016

5B

2005
  • Diazinon
    • A 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
    • A 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
    • A Source Unknown

1.7 Miles

2024

5B

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

1.7 Miles

2016

5B

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

1.7 Miles

1996

5B

2006
  • Trash
    • A Source Unknown

1.7 Miles

2010

5A

2021


Region 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
    • A 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
    • A Source Unknown

6.2 Miles

2006

5B

2006
  • DDT (tissue)
    • Nonpoint Source

6.2 Miles

2016

5B

2006
  • Diazinon
    • A Source Unknown

6.2 Miles

2006

5B

2006
  • Dieldrin
    • A Source Unknown

6.2 Miles

2006

5B

2006
  • Endosulfan (tissue)
    • Agriculture-storm runoff

6.2 Miles

2016

5B

2006
  • Indicator Bacteria
    • A Source Unknown

6.2 Miles

2010

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

6.2 Miles

1996

5B

2006
  • Sulfates
    • A Source Unknown

6.2 Miles

2002

5B

2008
  • Total Dissolved Solids
    • A 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
    • A Source Unknown

6.2 Miles

2010

5A

2021


Region 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
    • A 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
    • A Source Unknown

3 Miles

2006

5B

2006
  • DDT (tissue)
    • Nonpoint Source

3 Miles

2016

5B

2006
  • Diazinon
    • A Source Unknown

3 Miles

2006

5B

2006
  • Dieldrin
    • A Source Unknown

3 Miles

2006

5B

2006
  • Indicator Bacteria
    • A Source Unknown

3 Miles

2014

5A

2027
  • Malathion
    • A Source Unknown

3 Miles

2014

5A

2029
  • Nitrogen, Nitrite
    • Nonpoint Source
    • Point Source

3 Miles

1996

5B

2003
  • PCBs (Polychlorinated biphenyls)
    • A 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
    • A Source Unknown

3 Miles

2010

5A

2021


Region 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
    • A Source Unknown

8.7 Miles

1996

5B

2006
  • DDT (tissue)
    • Nonpoint Source

8.7 Miles

2016

5B

2006
  • Dieldrin
    • A Source Unknown

8.7 Miles

2006

5B

2006
  • Endosulfan (tissue)
    • Agriculture-storm runoff

8.7 Miles

2016

5B

2006
  • Indicator Bacteria
    • A Source Unknown

8.7 Miles

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A 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


Region 4

Canada Larga (Ventura River Watershed)

River & Stream

40210010  /  18070103
  • Indicator Bacteria
    • A Source Unknown

8 Miles

2014

5A

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

8 Miles

2014

5B

2013
  • Total Dissolved Solids
    • A Source Unknown

8 Miles

2010

5A

2021


Region 4

Casitas, Lake

Lake & Reservoir

40220032  /  18070101
  • Mercury
    • A Source Unknown
    • Natural Sources

2069 Acres

2010

5A

2021


Region 4

Castaic Lagoon

Lake & Reservoir

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

183 Acres

2014

5A

2027


Region 4

Castaic Lake

Lake & Reservoir

4403.510000  /  18070102
  • Mercury
    • A Source Unknown

2231 Acres

2010

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2231 Acres

2014

5A

2027


Region 4

Colorado Lagoon

Wetland, Tidal

4405.150000  /  18070104
  • Chlordane
    • A Source Unknown

17 Acres

2014

5B

2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

17 Acres

2014

5B

2011
  • Dieldrin
    • A Source Unknown

17 Acres

2014

5B

2011
  • Indicator Bacteria
    • A Source Unknown

17 Acres

2006

5A

2019
  • Lead
    • A Source Unknown

17 Acres

2014

5B

2011
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

17 Acres

2014

5B

2011
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

17 Acres

2014

5B

2011
  • Toxicity
    • A Source Unknown

17 Acres

2014

5B

2011
  • Zinc
    • A Source Unknown

17 Acres

2014

5B

2011


Region 4

Compton Creek

River & Stream

4412.100000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

8.5 Miles

2014

5A

2021
  • Copper
    • A Source Unknown

8.5 Miles

1996

5B

2008
  • Indicator Bacteria
    • A Source Unknown

8.5 Miles

2014

5A

2009
  • Lead
    • A Source Unknown

8.5 Miles

1996

5B

2005
  • Trash
    • Nonpoint Source

8.5 Miles

2006

5B

2008
  • Zinc
    • A Source Unknown

8.5 Miles

2014

5B

2008
  • pH
    • Nonpoint Source
    • Point Source

8.5 Miles

1996

5B

2004


Region 4

Coyote Creek, North Fork

River & Stream

4405.150000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

5 Miles

2010

5B

2016
  • Selenium
    • A Source Unknown

5 Miles

2010

5A

2021


Region 4

Crystal Lake

Lake & Reservoir

4405.430000  /  18070106
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

6.7 Acres

1998

5A

2019


Region 4

Dominguez Channel (lined portion above Vermont Ave)

River & Stream

4411.010000  /  18070104
  • Copper
    • A Source Unknown

6.8 Miles

1996

5B

2012
  • Indicator Bacteria
    • A Source Unknown

6.8 Miles

2006

5A

2027
  • Lead
    • A Source Unknown

6.8 Miles

1800

5B

2012
  • Toxicity
    • A Source Unknown

6.8 Miles

2010

5B

2012
  • Zinc
    • A Source Unknown

6.8 Miles

1800

5B

2012


Region 4

Dominguez Channel Estuary (unlined portion below Vermont Ave)

Estuary

40512000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

140 Acres

1996

5B

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

140 Acres

2006

5B

2012
  • Benzo(a)pyrene
    • A Source Unknown

140 Acres

1996

5B

2012
  • Chlordane (tissue)
    • A Source Unknown

140 Acres

2016

5B

2012
  • Chrysene (C1-C4)
    • A Source Unknown

140 Acres

2006

5B

2012
  • Copper
    • Other

140 Acres

2024

5B

2012
  • DDT (tissue & sediment)
    • A Source Unknown

140 Acres

2016

5B

2012
  • Dieldrin (tissue)
    • A Source Unknown

140 Acres

2016

5B

2012
  • Indicator Bacteria
    • A Source Unknown

140 Acres

2014

5A

2007
  • Lead
    • A Source Unknown

140 Acres

1800

5B

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

140 Acres

1996

5B

2012
  • Phenanthrene
    • A Source Unknown

140 Acres

2006

5B

2012
  • Pyrene
    • A Source Unknown

140 Acres

2006

5B

2012
  • Toxicity
    • A Source Unknown

140 Acres

2014

5B

2012


Region 4

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

Bay & Harbor

40512000  /  18070104
  • Copper
    • A Source Unknown

83 Acres

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

83 Acres

2014

5A

2027


Region 4

Dry Canyon Creek

River & Stream

4412.210000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

4.2 Miles

2014

5A

2027
  • Selenium, Total
    • Nonpoint Source

4.2 Miles

2016

5B

2005


Region 4

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

River & Stream

4408.110000,4408.130000  /  18070103
  • Bifenthrin
    • A Source Unknown

12 Miles

2014

5A

2027
  • ChemA
    • Nonpoint Source

12 Miles

2024

5B

2006
  • Chlordane
    • A Source Unknown

12 Miles

1800

5B

2006
  • Chlorpyrifos
    • A Source Unknown

12 Miles

2014

5B

2006
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

12 Miles

2014

5B

2006
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

12 Miles

2014

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

12 Miles

1800

5B

2006
  • Nitrogen
    • Nonpoint Source

12 Miles

1996

5B

2003
  • Toxaphene
    • A Source Unknown

12 Miles

1800

5B

2006
  • Toxicity
    • Nonpoint Source

12 Miles

1996

5B

2005


Region 4

Elizabeth Lake

Lake & Reservoir

4403.510000  /  18070102
  • Eutrophic
    • A Source Unknown

221 Acres

1996

5A

2019
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

221 Acres

1998

5A

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

221 Acres

1996

5B

2008
  • pH
    • A Source Unknown

221 Acres

1996

5A

2019


Region 4

Ellsworth Barranca

River & Stream

4403.210000  /  18070103
  • Chlorpyrifos
    • A Source Unknown

11 Miles

2014

5A

2027


Region 4

Fox Barranca (tributary to Calleguas Creek Reach 6)

River & Stream

4408.220000  /  18070103
  • Boron
    • Other

7 Miles

1998

5B

2008
  • Chlordane
    • A Source Unknown

7 Miles

2014

5B

2006
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

7 Miles

2014

5A

2029
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

7 Miles

2014

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

7 Miles

2014

5B

2006
  • Nitrate and Nitrite
    • Nonpoint Source

7 Miles

1998

5B

2003
  • Sulfates
    • Other

7 Miles

1998

5B

2006
  • Total Dissolved Solids
    • Other

7 Miles

1998

5B

2006


Region 4

Honda Barranca

River & Stream

4408.210000  /  18070103
  • Bifenthrin
    • A Source Unknown

6 Miles

2014

5A

2027
  • Chlordane
    • A Source Unknown

6 Miles

2014

5B

2006
  • Chlorpyrifos
    • A Source Unknown

6 Miles

2014

5B

2006
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

6 Miles

2014

5B

2006
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

6 Miles

2014

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

6 Miles

2014

5B

2006


Region 4

Hopper Creek

River & Stream

4403.410000  /  18070102
  • Sulfates
    • A Source Unknown

14 Miles

2002

5A

2015
  • Total Dissolved Solids
    • A Source Unknown

14 Miles

2220

5A

2019


Region 4

Hueneme Beach Park

Coastal & Bay Shoreline

4408.110000,4410.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

1.3 Miles

2010

5A

2023


Region 4

Hueneme Drain

River & Stream

4410.000000  /  18070103
  • Escherichia coli (E. coli)
    • A Source Unknown

1.7 Miles

2014

5A

2027
  • Trash
    • A Source Unknown

1.7 Miles

2014

5C

2027


Region 4

Lake Hughes

Lake & Reservoir

4403.510000  /  18070102
  • Algae
    • A Source Unknown

22 Acres

1996

5A

2019
  • Eutrophication
    • A Source Unknown

22 Acres

2014

5A

2019
  • Odor
    • A Source Unknown

22 Acres

1996

5A

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

22 Acres

1996

5B

2008


Region 4

Lake Lindero

Lake & Reservoir

4404.230000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

14 Acres

1996

5B

2003
  • Chloride
    • A Source Unknown

14 Acres

1996

5A

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

14 Acres

1996

5B

2003
  • Odor
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

14 Acres

1996

5B

2003
  • Selenium
    • A Source Unknown

14 Acres

1996

5A

2019
  • Specific Conductivity
    • A Source Unknown

14 Acres

1996

5A

2019
  • Trash
    • A Source Unknown

14 Acres

1996

5B

2008


Region 4

Las Virgenes Creek

River & Stream

4404.210000,4404.220100,4404.220200  /  18070104
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2014

5B

2013
  • Indicator Bacteria
    • Nonpoint Source

12 Miles

2014

5B

2005
  • Invasive Species
    • A Source Unknown

12 Miles

2010

5A

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
    • A Source Unknown

12 Miles

2002

5B

2013
  • Selenium
    • A Source Unknown

12 Miles

1996

5A

2019
  • Trash
    • A Source Unknown

12 Miles

1996

5B

2008


Region 4

Legg Lake

Lake & Reservoir

4412.310000  /  18070105
  • Ammonia
    • A Source Unknown

28 Acres

1996

5B

2012
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

28 Acres

2014

5A

2027
  • Odor
    • A Source Unknown

28 Acres

1996

5B

2012
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

28 Acres

2014

5A

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

28 Acres

1996

5B

2008
  • pH
    • A Source Unknown

28 Acres

1996

5A

2019


Region 4

Lincoln Park Lake

Lake & Reservoir

4412.100000  /  18070104
  • Ammonia
    • A Source Unknown

4.6 Acres

1996

5B

2012
  • Eutrophic
    • A Source Unknown

4.6 Acres

1996

5B

2012
  • Odor
    • A Source Unknown

4.6 Acres

1996

5B

2012
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

4.6 Acres

1998

5B

2012
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

4.6 Acres

2014

5A

2027
  • Trash
    • A Source Unknown

4.6 Acres

1996

5B

2012


Region 4

Lindero Creek Reach 1

River & Stream

4404.230000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

3.2 Miles

1996

5B

2003
  • Benthic Community Effects
    • A Source Unknown

3.2 Miles

2014

5A

2021
  • Indicator Bacteria
    • Nonpoint Source

3.2 Miles

2014

5B

2006
  • Invasive Species
    • A Source Unknown

3.2 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

3.2 Miles

1996

5B

2003
  • Selenium
    • A Source Unknown

3.2 Miles

1996

5A

2019
  • Trash
    • A Source Unknown

3.2 Miles

1996

5B

2008


Region 4

Lindero Creek Reach 2 (Above Lake)

River & Stream

4404.230000,4404.250000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

4.8 Miles

1998

5B

2003
  • Indicator Bacteria
    • A Source Unknown

4.8 Miles

2014

5B

2006
  • Scum/Foam-unnatural
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

4.8 Miles

1998

5B

2003
  • Selenium
    • A Source Unknown

4.8 Miles

1998

5A

2019
  • Trash
    • A Source Unknown

4.8 Miles

1998

5B

2008


Region 4

Los Angeles River Estuary (Queensway Bay)

Estuary

40512000  /  18070104
  • Chlordane
    • A Source Unknown

207 Acres

1800

5B

2012
  • DDT (sediment)
    • A Source Unknown

207 Acres

2016

5B

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

207 Acres

2016

5A

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

207 Acres

2014

5A

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

207 Acres

2006

5B

2008


Region 4

Los Angeles River Reach 1 (Estuary to Carson Street)

River & Stream

4412.100000  /  18070104
  • Ammonia
    • Nonpoint Source
    • Point Source

3.4 Miles

2002

5B

2004
  • Cadmium
    • A Source Unknown

3.4 Miles

2002

5B

2005
  • Copper, Dissolved
    • Nonpoint Source
    • Point Source

3.4 Miles

2016

5B

2005
  • Cyanide
    • A Source Unknown

3.4 Miles

2006

5A

2019
  • Indicator Bacteria
    • A 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


Region 4

Los Angeles River Reach 2 (Carson to Figueroa Street)

River & Stream

4412.100000  /  18070104
  • Ammonia
    • Nonpoint Source
    • Point Source

19 Miles

1996

5B

2004
  • Copper
    • A Source Unknown

19 Miles

2006

5B

2005
  • Indicator Bacteria
    • A 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


Region 4

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

River & Stream

4412.100000,4412.210000  /  18070104
  • Ammonia
    • Nonpoint Source
    • Point Source

7.9 Miles

1996

5B

2004
  • Copper
    • A Source Unknown

7.9 Miles

2006

5B

2008
  • Indicator Bacteria
    • A Source Unknown

7.9 Miles

2014

5B

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

7.9 Miles

1996

5B

2004
  • Toxicity
    • A Source Unknown

7.9 Miles

2014

5A

2027
  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

7.9 Miles

1996

5B

2008


Region 4

Los Angeles River Reach 4 (Sepulveda Dr. to Sepulveda Dam)

River & Stream

4412.210000  /  18070105
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

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

11 Miles

1996

5B

2004
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2027
  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

11 Miles

1996

5B

2008


Region 4

Los Angeles River Reach 5 ( within Sepulveda Basin)

River & Stream

4412.210000  /  18070105
  • Ammonia
    • A Source Unknown

1.9 Miles

1996

5B

2004
  • Benthic Community Effects
    • A Source Unknown

1.9 Miles

2014

5A

2025
  • Copper
    • A Source Unknown

1.9 Miles

2006

5B

2005
  • Lead
    • A Source Unknown

1.9 Miles

2006

5B

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

1.9 Miles

1996

5B

2004
  • Oil
    • A Source Unknown

1.9 Miles

1996

5A

2019
  • Toxicity
    • A Source Unknown

1.9 Miles

2014

5A

2027
  • Trash
    • Nonpoint Source
    • Surface Runoff
    • Urban Runoff/Storm Sewers

1.9 Miles

1996

5B

2008


Region 4

Los Angeles River Reach 6 (Above Sepulveda Flood Control Basin)

River & Stream

4412.210000  /  18070105
  • Copper
    • A Source Unknown

7 Miles

2014

5B

2008
  • Indicator Bacteria
    • A Source Unknown

7 Miles

2014

5B

2012
  • Selenium
    • A Source Unknown

7 Miles

1992

5B

2005
  • Toxicity
    • A Source Unknown

7 Miles

2014

5A

2027


Region 4

Los Cerritos Channel

Wetland, Tidal

40515010  /  18070104
  • Ammonia
    • A Source Unknown

30 Acres

2002

5A

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

30 Acres

2006

5A

2019
  • Chlordane (sediment)
    • A Source Unknown

30 Acres

2016

5A

2019
  • Copper
    • A Source Unknown

30 Acres

2002

5A

2019
  • Indicator Bacteria
    • A Source Unknown

30 Acres

2014

5A

2019
  • Lead
    • A Source Unknown

30 Acres

2002

5A

2019
  • Trash
    • A Source Unknown

30 Acres

2006

5A

2019
  • Zinc
    • A Source Unknown

30 Acres

2002

5A

2019
  • pH
    • A Source Unknown

30 Acres

2024

5A

2021


Region 4

Machado Lake (Harbor Park Lake)

Lake & Reservoir

4411.020000  /  18070104
  • Algae
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Internal Nutrient Cycling (primarily lakes)
    • Urban Runoff--Industrial Permitted
    • Urban Runoff/Storm Sewers

48 Acres

1996

5B

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

48 Acres

1996

5B

2009
  • ChemA
    • A Source Unknown

48 Acres

2014

5B

2012
  • Chlordane (tissue)
    • A Source Unknown

48 Acres

2016

5B

2012
  • DDT (tissue)
    • A Source Unknown

48 Acres

2016

5B

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

48 Acres

2016

5B

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

48 Acres

1992

5B

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

48 Acres

1996

5B

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

48 Acres

2016

5A

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

48 Acres

1996

5B

2008


Region 4

Malibou Lake

Lake & Reservoir

4404.240000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

42 Acres

1996

5B

2003
  • Dieldrin
    • A Source Unknown

42 Acres

2014

5A

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

42 Acres

1996

5B

2003
  • Organic Enrichment/Low Dissolved Oxygen
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

42 Acres

1998

5B

2003


Region 4

Malibu Creek

River & Stream

4404.210000,4404.240000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

10 Miles

2014

5B

2013
  • Fish Barriers (Fish Passage)
    • A Source Unknown

10 Miles

1996

5A

2019
  • Indicator Bacteria
    • Nonpoint Source
    • Point Source

10 Miles

2014

5B

2002
  • Invasive Species
    • A Source Unknown

10 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

10 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

10 Miles

1996

5B

2003
  • Sedimentation/Siltation
    • A Source Unknown

10 Miles

2002

5B

2013
  • Selenium
    • A Source Unknown

10 Miles

2006

5A

2019
  • Sulfates
    • A Source Unknown

10 Miles

2006

5A

2019
  • Toxicity
    • A Source Unknown

10 Miles

2010

5A

2027
  • Trash
    • Nonpoint Source

10 Miles

1996

5B

2009


Region 4

Malibu Lagoon

Estuary

4404.160000,4404.210000,4404.310000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

25 Acres

1998

5B

2013
  • Eutrophic
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

25 Acres

1998

5B

2003
  • Indicator Bacteria
    • Nonpoint Source
    • Point Source

25 Acres

2014

5B

2006
  • Swimming Restrictions
    • Agriculture-animal
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Spills
    • Surface Runoff
    • Urban Runoff/Storm Sewers

25 Acres

1998

5B

2006
  • Viruses (enteric)
    • Agriculture-animal
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Natural Sources
    • Onsite Wastewater Systems (Septic Tanks)
    • Spills
    • Surface Runoff
    • Urban Runoff/Storm Sewers

25 Acres

1998

5B

2006
  • pH
    • A Source Unknown

25 Acres

2002

5A

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


Region 4

Marina del Rey Harbor - Back Basins

Bay & Harbor

40517000  /  18070104
  • Chlordane
    • Nonpoint Source

391 Acres

2024

5B

2005
  • Copper
    • A Source Unknown

391 Acres

1800

5B

2006
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

391 Acres

1800

5A

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

2024

5B

2006
  • Oxygen, Dissolved
    • A Source Unknown

391 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • Nonpoint Source

391 Acres

2024

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

2024

5B

2006


Region 4

McCoy Canyon Creek

River & Stream

4412.210000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

4.2 Miles

2014

5A

2027
  • Nitrate
    • A Source Unknown

4.2 Miles

2002

5B

2003
  • Nitrogen, Nitrate
    • A Source Unknown

4.2 Miles

2002

5B

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

4.2 Miles

2016

5B

2005


Region 4

McGrath Lake

Lake & Reservoir

40311000  /  18070103
  • Chlordane
    • A Source Unknown

20 Acres

2014

5B

2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

20 Acres

2014

5B

2011
  • Dieldrin (sediment)
    • A Source Unknown

20 Acres

2016

5A

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

20 Acres

2014

5A

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

20 Acres

2016

5A

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

20 Acres

2014

5B

2011


Region 4

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

River & Stream

4404.230000,4404.240000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

2.7 Miles

1996

5B

2003
  • Benthic Community Effects
    • A Source Unknown

2.7 Miles

2014

5A

2029
  • Indicator Bacteria
    • Nonpoint Source

2.7 Miles

2014

5B

2006
  • Sedimentation/Siltation
    • A Source Unknown

2.7 Miles

2002

5B

2013
  • Selenium
    • A Source Unknown

2.7 Miles

1996

5A

2027
  • Trash
    • A Source Unknown

2.7 Miles

1996

5B

2008


Region 4

Medea Creek Reach 2 (Abv Confl. with Lindero)

River & Stream

4404.230000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

5.5 Miles

1996

5B

2003
  • Benthic Community Effects
    • A Source Unknown

5.5 Miles

2014

5A

2021
  • Indicator Bacteria
    • Nonpoint Source

5.5 Miles

2014

5B

2006
  • Invasive Species
    • A Source Unknown

5.5 Miles

2010

5A

2021
  • Sedimentation/Siltation
    • A Source Unknown

5.5 Miles

2002

5B

2013
  • Selenium
    • A Source Unknown

5.5 Miles

1996

5A

2019
  • Trash
    • A Source Unknown

5.5 Miles

1996

5B

2008


Region 4

Munz Lake

Lake & Reservoir

4403.510000  /  18070102
  • Eutrophic
    • A Source Unknown

8.6 Acres

1996

5A

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

8.6 Acres

1996

5B

2008


Region 4

Ormond Beach

Coastal & Bay Shoreline

4408.110000,4410.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

3.1 Miles

2002

5A

2019


Region 4

Ormond Beach Wetlands

Wetland, Tidal

4410.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

23 Acres

2014

5A

2027
  • Trash
    • A Source Unknown

23 Acres

2014

5C

2027
  • pH
    • A Source Unknown

23 Acres

2014

5A

2027


Region 4

Oxnard Drain

River & Stream

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

3 Miles

2014

5A

2027
  • Nitrogen, Nitrate
    • A Source Unknown

3 Miles

2014

5A

2029
  • Trash
    • A Source Unknown

3 Miles

2014

5C

2027
  • pH
    • A Source Unknown

3 Miles

2014

5A

2027


Region 4

Peninsula Beach

Coastal & Bay Shoreline

4407.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

0.19 Miles

2002

5A

2019
    Area affected is beach area north of South Jetty.


Region 4

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

River & Stream

4403.420000  /  18070102
  • Chloride
    • A Source Unknown

39 Miles

2006

5A

2019
  • Toxicity
    • A Source Unknown

39 Miles

2014

5A

2027
  • pH
    • A Source Unknown

39 Miles

2002

5A

2019


Region 4

Point Mugu Beach

Coastal & Bay Shoreline

4408.110000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

0.39 Miles

2010

5A

2023


Region 4

Pole Creek (trib to Santa Clara River Reach 3 )

River & Stream

4403.310000  /  18070102
  • Sulfates
    • A Source Unknown

9.5 Miles

2002

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

9.5 Miles

2002

5A

2019


Region 4

Port Hueneme Harbor (Back Basins)

Bay & Harbor

40311000  /  18070103
  • Arsenic
    • A Source Unknown

65 Acres

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

65 Acres

2014

5C

2019
  • Dieldrin
    • A Source Unknown

65 Acres

2014

5A

2027
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

65 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

65 Acres

2014

5C

2019


Region 4

Port Hueneme Pier

Coastal & Bay Shoreline

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

0.33 Miles

2006

5A

2019


Region 4

Potrero Canyon Creek

River & Stream

4404.250000  /  18070104
  • Oxygen, Dissolved
    • A Source Unknown

0.97 Miles

2014

5A

2027


Region 4

Puddingstone Reservoir

Lake & Reservoir

4405.520000  /  18070106
  • Chlordane
    • A Source Unknown

244 Acres

2014

5A

2019
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

244 Acres

2014

5A

2019
  • Mercury
    • A Source Unknown

244 Acres

2014

5A

2019
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

244 Acres

1996

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

244 Acres

2014

5A

2019


Region 4

Puente Creek

River & Stream

4405.200000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

5.8 Miles

2010

5A

2027
  • Selenium
    • A Source Unknown

5.8 Miles

2010

5A

2021


Region 4

Pyramid Lake

Lake & Reservoir

4403.420000  /  18070102
  • Chlordane
    • A Source Unknown

1177 Acres

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1177 Acres

2014

5A

2027
  • Dieldrin
    • A Source Unknown

1177 Acres

2014

5A

2027
  • Mercury
    • A Source Unknown

1177 Acres

2010

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1177 Acres

2014

5A

2027


Region 4

Rincon Beach

Coastal & Bay Shoreline

 /  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.


Region 4

Rincon Parkway Beach

Coastal & Bay Shoreline

4401.000001,4401.000002,4402.100001,4402.200302  /  18070101
  • Indicator Bacteria
    • A Source Unknown

0.44 Miles

2014

5A

2027


Region 4

Rio De Santa Clara/Oxnard Drain No. 3

River & Stream

4408.110000  /  18070103
  • Ammonia
    • A Source Unknown

1.9 Miles

2014

5A

2029
  • ChemA (tissue)
    • A Source Unknown

1.9 Miles

1996

5B

2011
  • Chlordane (tissue)
    • A Source Unknown

1.9 Miles

2016

5B

2011
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

1.9 Miles

2014

5B

2011
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

1.9 Miles

2014

5B

2011
  • DDT (tissue)
    • A 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)
    • A Source Unknown

1.9 Miles

2014

5B

2011
  • Toxaphene (tissue)
    • A Source Unknown

1.9 Miles

2016

5A

2019
  • Toxicity
    • A Source Unknown

1.9 Miles

2014

5B

2011


Region 4

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

River & Stream

4412.100000  /  18070104
  • Copper
    • Nonpoint Source
    • Point Source

4.5 Miles

1996

5B

2005
  • Indicator Bacteria
    • A Source Unknown

4.5 Miles

2014

5B

2012
  • Lead
    • Nonpoint Source
    • Point Source

4.5 Miles

1996

5B

2005
  • Toxicity
    • A 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


Region 4

Rio Hondo Reach 2 (At Spreading Grounds)

River & Stream

4412.100000  /  18070104
  • Coliform Bacteria
    • A Source Unknown

2.9 Miles

2016

5B

2012
  • Cyanide
    • A Source Unknown

2.9 Miles

2010

5A

2021


Region 4

Rio Hondo Reach 3 (above Spreading Grounds)

River & Stream

4412.310000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

8.1 Miles

2014

5B

2012
  • Iron
    • A Source Unknown

8.1 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

8.1 Miles

2014

5A

2027


Region 4

San Antonio Creek

River & Stream

4481.210000,4481.220000,4481.230100,4481.230100,4481.230100,4481.230200,4801.210000,4801.230100,4801.230100,4801.230100,(Total Count: 11)  /  18070203
  • pH
    • A Source Unknown

22 Miles

2010

5A

2021


Region 4

San Antonio Creek (Tributary to Ventura River Reach 4)

River & Stream

4402.200202,4402.200203,4402.320001,4402.320002,4402.320003  /  18070101
  • Indicator Bacteria
    • A Source Unknown

9.9 Miles

2010

5A

2021
  • Nitrogen
    • A Source Unknown

9.9 Miles

2002

5B

2013
  • Total Dissolved Solids
    • A Source Unknown

9.9 Miles

2010

5A

2023


Region 4

San Buenaventura Beach

Coastal & Bay Shoreline

4407.000000  /  18070103
  • Indicator Bacteria
    • A Source Unknown

2.6 Miles

1800

5A

2019


Region 4

San Gabriel River Estuary

River & Stream

4405.150000  /  18070104
  • Copper
    • A Source Unknown

3.4 Miles

1996

5B

2007
  • Dioxin
    • A Source Unknown

3.4 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5B

2016
  • Nickel
    • A Source Unknown

3.4 Miles

2010

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

3.4 Miles

2010

5A

2021


Region 4

San Gabriel River Reach 1 (Estuary to Firestone)

River & Stream

4405.150000  /  18070104
  • Temperature, water
    • A Source Unknown

6.3 Miles

2014

5A

2027
  • pH
    • A Source Unknown

6.3 Miles

1996

5A

2009


Region 4

San Gabriel River Reach 2 (Firestone to Whittier Narrows Dam

River & Stream

4405.150000  /  18070104
  • Cyanide
    • A Source Unknown

11 Miles

2010

5A

2021
  • Lead
    • Nonpoint Source
    • Point Source

11 Miles

1996

5B

2007
  • Temperature, water
    • A Source Unknown

11 Miles

2014

5A

2027


Region 4

San Gabriel River, East Fork

River & Stream

4405.430000,4405.430000  /  18070106
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2014

5A

2029
  • Trash
    • Nonpoint Source

12 Miles

1996

5B

2000


Region 4

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

River & Stream

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

29 Miles

1996

5C

2019
  • Indicator Bacteria
    • A Source Unknown

29 Miles

2014

5B

2016
  • Total Dissolved Solids
    • A Source Unknown

29 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

29 Miles

1996

5A

2019
  • pH
    • A Source Unknown

29 Miles

2010

5A

2021


Region 4

Sanjon Barranca Creek

River & Stream

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

0.22 Miles

2014

5A

2027
  • Trash
    • A Source Unknown

0.22 Miles

2014

5C

2027


Region 4

Santa Clara River Estuary

Estuary

4403.100000,4407.000000,4410.000000  /  18070103
  • Ammonia
    • A Source Unknown

100 Acres

2014

5A

2027
  • ChemA
    • A Source Unknown

100 Acres

1998

5B

2011
  • Indicator Bacteria
    • A Source Unknown

100 Acres

2014

5B

2012
  • Toxaphene
    • A Source Unknown

100 Acres

1998

5B

2011
  • Toxicity
    • A Source Unknown

100 Acres

2010

5A

2019


Region 4

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

River & Stream

4403.100000,4403.100000  /  18070103
  • Oxygen, Dissolved
    • A Source Unknown

6.1 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

6.1 Miles

2006

5A

2019
  • Trash
    • A Source Unknown

6.1 Miles

2014

5C

2027
  • pH
    • A Source Unknown

6.1 Miles

2014

5A

2027


Region 4

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

River & Stream

4403.210000,4403.310000  /  18070103
  • Chloride
    • Nonpoint Source
    • Point Source

12 Miles

2002

5B

2010
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5B

2012
  • Selenium
    • A Source Unknown

12 Miles

2014

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

12 Miles

2002

5A

2015
  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

2021
  • Trash
    • A Source Unknown

12 Miles

2014

5C

2027


Region 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
    • A Source Unknown

8.7 Miles

2014

5B

2012
  • Iron
    • A Source Unknown

8.7 Miles

2010

5A

2029
  • Trash
    • A Source Unknown

8.7 Miles

2014

5C

2027


Region 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
    • A Source Unknown

3.6 Miles

2006

5A

2029
  • Temperature, water
    • A Source Unknown

3.6 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

3.6 Miles

2006

5A

2029


Region 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

4403.410000  /  18070102
  • Boron
    • A Source Unknown

5.9 Miles

2006

5A

2019
  • Specific Conductance
    • A Source Unknown

5.9 Miles

2010

5A

2021
  • Sulfates
    • A Source Unknown

5.9 Miles

2006

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

5.9 Miles

2010

5A

2021


Region 4

Santa Fe Dam Park Lake

Lake & Reservoir

4405.200000  /  18070105
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

19 Acres

2014

5A

2027
  • pH
    • A Source Unknown

19 Acres

1996

5B

2012


Region 4

Santa Monica Bay Offshore/Nearshore

Bay & Harbor

40513000  /  18070104
  • Arsenic
    • A Source Unknown

146645 Acres

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

146645 Acres

2014

5B

2012
  • Mercury
    • A Source Unknown

146645 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

146645 Acres

1800

5B

2012
  • Trash
    • A Source Unknown

146645 Acres

2014

5B

2012


Region 4

Santa Monica Canyon

River & Stream

4404.500000  /  18070104
  • Indicator Bacteria
    • Nonpoint Source

3 Miles

1996

5B

2003
  • Lead
    • A Source Unknown

3 Miles

1996

5A

2019


Region 4

Sawpit Creek

River & Stream

4412.310000  /  18070105
  • Bis(2ethylhexyl)phthalate (DEHP)
    • A Source Unknown

3.9 Miles

2006

5A

2019
  • Indicator Bacteria
    • A Source Unknown

3.9 Miles

2014

5A

2027


Region 4

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

River & Stream

4403.320100,4403.320200  /  18070102
  • Chloride
    • A Source Unknown

55 Miles

2006

5A

2019
  • pH
    • A Source Unknown

55 Miles

2006

5A

2019


Region 4

South San Jose Creek (Los Angeles County)

River & Stream

4405.200000,4405.510000  /  18070106
  • Ammonia
    • A Source Unknown

3.3 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

3.3 Miles

2014

5A

2027
  • pH
    • A Source Unknown

3.3 Miles

2014

5A

2027


Region 4

Surfers Point at Seaside

Coastal & Bay Shoreline

4402.100001,4407.000000  /  18070101
  • Indicator Bacteria
    • A Source Unknown

0.38 Miles

2002

5A

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


Region 4

Tapo Canyon

River & Stream

4403.410000  /  18070103
  • Chlordane
    • A Source Unknown

4.1 Miles

2014

5A

2027
  • Chloride
    • A Source Unknown

4.1 Miles

2014

5A

2027
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

4.1 Miles

2014

5A

2027
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

4.1 Miles

2014

5A

2029
  • Malathion
    • A Source Unknown

4.1 Miles

2014

5A

2027
  • Sulfates
    • A Source Unknown

4.1 Miles

2014

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

4.1 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

4.1 Miles

2014

5A

2027


Region 4

Timber Canyon

River & Stream

4403.310000  /  18070102
  • Chlorpyrifos
    • A Source Unknown

6.1 Miles

2014

5A

2027


Region 4

Topanga Canyon Creek

River & Stream

4404.110000  /  18070104
  • Lead
    • A Source Unknown

8.8 Miles

1996

5A

2019


Region 4

Torrance Carson Channel

River & Stream

4411.010000  /  18070104
  • Copper
    • A Source Unknown

3.4 Miles

1996

5B

2012
  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5A

2007
  • Lead
    • A Source Unknown

3.4 Miles

1996

5B

2012


Region 4

Triunfo Canyon Creek Reach 1

River & Stream

4404.240000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

2.6 Miles

2014

5A

2029
  • Lead
    • A Source Unknown

2.6 Miles

1996

5A

2019
  • Mercury
    • A Source Unknown

2.6 Miles

1996

5A

2019
  • Sedimentation/Siltation
    • A Source Unknown

2.6 Miles

2002

5A

2019


Region 4

Triunfo Canyon Creek Reach 2

River & Stream

4404.240000,4404.250000  /  18070104
  • Benthic Community Effects
    • A Source Unknown

3.6 Miles

2014

5A

2021
  • Lead
    • A Source Unknown

3.6 Miles

1996

5A

2019
  • Mercury
    • A Source Unknown

3.6 Miles

1996

5A

2019
  • Sedimentation/Siltation
    • A Source Unknown

3.6 Miles

2002

5A

2019


Region 4

Ventura Harbor: Ventura Keys

Bay & Harbor

40311000  /  18070103
  • Arsenic
    • A Source Unknown

179 Acres

2014

5A

2027
  • Coliform Bacteria
    • A Source Unknown

179 Acres

1996

5A

2019
  • Dieldrin
    • A Source Unknown

179 Acres

2014

5A

2027
  • Indicator Bacteria
    • A Source Unknown

179 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

179 Acres

2014

5A

2027


Region 4

Ventura Marina Jetties

Coastal & Bay Shoreline

40311000  /  18070103
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

0.69 Miles

2006

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.69 Miles

2006

5A

2019


Region 4

Ventura River Estuary

River & Stream

4402.100001  /  18070101
  • Algae
    • A Source Unknown

3.8 Miles

1998

5B

2013
  • Eutrophic
    • A Source Unknown

3.8 Miles

1998

5B

2013
  • Indicator Bacteria
    • A Source Unknown

3.8 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

3.8 Miles

1998

5B

2008


Region 4

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

River & Stream

4402.100001  /  18070101
  • Algae
    • A Source Unknown

4.5 Miles

1996

5A

2019
  • Benthic Community Effects
    • A Source Unknown

4.5 Miles

2014

5A

2029


Region 4

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

River & Stream

4402.100001,4402.200202  /  18070101
  • Indicator Bacteria
    • A Source Unknown

2.8 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

2.8 Miles

2014

5A

2027


Region 4

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

River & Stream

40220021  /  18070101
  • Temperature, water
    • A Source Unknown

19 Miles

2014

5A

2027


Region 4

Walnut Creek Wash (Drains from Puddingstone Res)

River & Stream

4405.200000  /  18070106
  • Benthic Community Effects
    • A Source Unknown

14 Miles

2014

5A

2012
  • Indicator Bacteria
    • A Source Unknown

14 Miles

2010

5A

2027
  • pH
    • A Source Unknown

14 Miles

1996

5A

2007


Region 4

Westlake Lake

Lake & Reservoir

4404.240000,4404.250000  /  18070104
  • Algae
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

132 Acres

1996

5B

2003
  • Ammonia
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

132 Acres

1996

5B

2003
  • Eutrophic
    • Agriculture-animal
    • Atmospheric Deposition
    • Golf course activities
    • Groundwater Loadings
    • Irrigated Crop Production
    • Major Municipal Point Source-dry and/or wet weather discharge
    • Onsite Wastewater Systems (Septic Tanks)
    • Urban Runoff/Storm Sewers

132 Acres

1996

5B

2003
  • Lead
    • A Source Unknown

132 Acres

1996

5A

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

132 Acres

1996

5B

2003


Region 4

Wheeler Canyon/Todd Barranca

River & Stream

4403.210000  /  18070102
  • Chlordane
    • A Source Unknown

10 Miles

2014

5A

2027
  • Cypermethrin
    • A Source Unknown

10 Miles

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

10 Miles

2014

5A

2027
  • Nitrate and Nitrite
    • Nonpoint Source

10 Miles

1998

5B

2004
  • Sulfates
    • A Source Unknown

10 Miles

2002

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

10 Miles

2002

5A

2019
  • Toxaphene
    • A Source Unknown

10 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

2027


Region 4

Wildlife Lake

Lake & Reservoir

4412.210000  /  18070105
  • Ammonia
    • A Source Unknown

14 Acres

2014

5B

2004
  • Oxygen, Dissolved
    • A Source Unknown

14 Acres

2014

5A

2027


Region 4

Wilmington Drain

River & Stream

4411.020000  /  18070104
  • Indicator Bacteria
    • A Source Unknown

0.58 Miles

2014

5A

2007


Region 5

Adobe Creek (Lake County)

River & Stream

5513.520000,5513.550301,5513.550302,5513.550303,5513.550305  / 
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2020

5A

2035


Region 5

Agatha Canal (Merced County)

River & Stream

6541.200000  /  18040001
  • Selenium
    • A Source Unknown

2.5 Miles

2010

5B

2000
  • pH
    • A Source Unknown

2.5 Miles

2010

5A

2021


Region 5

Almanor Lake

Lake & Reservoir

51841000  /  18020121
  • Mercury
    • A Source Unknown

25314 Acres

2010

5A

2027


Region 5

Amador Lake

Lake & Reservoir

53240041  /  18040012
  • Mercury
    • A Source Unknown

299 Acres

2014

5A

2027
  • pH (high)
    • A Source Unknown

299 Acres

2010

5A

2021


Region 5

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

River & Stream

51921000  /  18020109
  • Bifenthrin
    • A Source Unknown

27 Miles

2014

5A

2027
  • Indicator Bacteria
    • A Source Unknown

27 Miles

2014

5A

2027
  • Mercury
    • A Source Unknown

27 Miles

1990

5A

2010
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

27 Miles

2010

5A

2021
  • Pyrethroids
    • A Source Unknown

27 Miles

2014

5A

2027
  • Temperature, water
    • A Source Unknown

27 Miles

2014

5A

2034
  • Toxicity
    • A Source Unknown

27 Miles

2014

5A

2021


Region 5

American River, North Fork

River & Stream

51421010  /  18020128
  • Mercury
    • A Source Unknown

71 Miles

2010

5A

2027


Region 5

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

River & Stream

51432060  /  18020129
  • Mercury
    • A Source Unknown

37 Miles

2006

5A

2021


Region 5

Anderson Creek (Shasta County)

River & Stream

5508.100001,5508.200000  /  18020101
  • Indicator Bacteria
    • A Source Unknown

17 Miles

2014

5A

2023


Region 5

Antelope Creek (Tehama County)

River & Stream

50963000  /  18020119
  • Oxygen, Dissolved
    • A Source Unknown

28 Miles

2010

5A

2035


Region 5

Antelope Lake

Lake & Reservoir

51854013  /  18020122
  • Oxygen, Dissolved
    • A Source Unknown

921 Acres

2020

5A

2035
  • pH
    • A Source Unknown

921 Acres

2020

5A

2035


Region 5

Arcade Creek

River & Stream

51921000  /  18020111
  • Bifenthrin
    • A Source Unknown

9.9 Miles

2020

5A

2035
  • Copper
    • A Source Unknown

9.9 Miles

2002

5A

2021
  • Fipronil Sulfone
    • A Source Unknown

9.9 Miles

2020

5A

2035
  • Malathion
    • A Source Unknown

9.9 Miles

2010

5A

2035
  • Permethrin
    • A Source Unknown

9.9 Miles

2020

5B

2019
  • Pyrethroids
    • A Source Unknown

9.9 Miles

2010

5B

2019
  • Toxicity
    • A Source Unknown

9.9 Miles

2014

5A

2021


Region 5

Ash Creek, Upper

River & Stream

52664024  /  18020002
  • Indicator Bacteria
    • A Source Unknown

19 Miles

2014

5A

2021
  • pH
    • A Source Unknown

19 Miles

2010

5A

2021


Region 5

Avena Drain

River & Stream

6531.400000  /  18040002
  • Ammonia
    • A Source Unknown

6 Miles

2002

5A

2020
  • Indicator Bacteria
    • A Source Unknown

6 Miles

2014

5A

2020


Region 5

Barker Slough (Solano County, in Delta Waterways, northwestern portion)

River & Stream

51000000  /  18020109
  • Aluminum
    • A Source Unknown

3 Miles

2020

5A

2035
  • Bromoform
    • A Source Unknown

3 Miles

2014

5A

2033
  • Chlorodibromomethane
    • A Source Unknown

3 Miles

2014

5A

2035
  • Chloroform
    • A Source Unknown

3 Miles

2014

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

3 Miles

2014

5A

2035
  • Total Trihalomethane (TTHM)
    • A Source Unknown

3 Miles

2020

5A

2035


Region 5

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

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

7.5 Miles

2014

5A

2021


Region 5

Beacon Creek (Sacramento County)

River & Stream

5519.110000  / 
  • Toxicity
    • A Source Unknown

6.7 Miles

2020

5A

2035


Region 5

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

River & Stream

53120000  /  18040005
  • Copper
    • A Source Unknown

43 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

43 Miles

2014

5A

2021
  • Low Dissolved Oxygen
    • A Source Unknown

43 Miles

2010

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

43 Miles

2014

5A

2035


Region 5

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

River & Stream

53800010  /  18040001
  • Bifenthrin
    • A Source Unknown

84 Miles

2014

5A

2035
  • Indicator Bacteria
    • A Source Unknown

84 Miles

2014

5A

2021
  • Pyrethroids
    • A Source Unknown

84 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

84 Miles

2014

5A

2021


Region 5

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

River & Stream

53260050  /  18040012
  • Copper
    • A Source Unknown

5.4 Miles

2024

5A

2021


Region 5

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

River & Stream

53260040  /  18040012
  • pH (low)
    • A Source Unknown

8.4 Miles

2010

5A

2021


Region 5

Bear River, Lower (below Camp Far West Reservoir)

River & Stream

51510000  /  18020126
  • Aluminum
    • A Source Unknown

21 Miles

2020

5A

2035
  • Chlorpyrifos
    • Agriculture

21 Miles

2010

5C

2026
  • Iron
    • A Source Unknown

21 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

21 Miles

1800

5A

2023


Region 5

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

River & Stream

5516.310004,5516.320202,5516.330001,5516.330002,5516.330003,5516.330004,5516.340303  /  18020126
  • Mercury
    • A Source Unknown

24 Miles

2002

5A

2015


Region 5

Beaver Creek

River & Stream

52641011  /  18020003
  • Indicator Bacteria
    • A Source Unknown

23 Miles

2014

5A

2027


Region 5

Bell Creek (Tuolumne County)

River & Stream

6536.400101,6536.400104  / 
  • Indicator Bacteria
    • A Source Unknown

8.3 Miles

2014

5A

2027


Region 5

Berenda Creek (Madera County)

River & Stream

54530020  /  18040001
  • Chlorpyrifos
    • Agriculture

21 Miles

2010

5C

2026
  • Toxicity
    • A Source Unknown

21 Miles

2014

5A

2027


Region 5

Berenda Slough (Madera County)

River & Stream

54520000  /  18040001
  • Chlorpyrifos
    • Agriculture

23 Miles

2010

5C

2026
  • Copper
    • A Source Unknown

23 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

23 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

23 Miles

2014

5A

2027
    In 2008, the Irrigated Lands Regulatory Program developed a management plan for Berenda Slough for the species Selenastrum capricornutum. The plan was completed in October 2013.


Region 5

Berryessa, Lake

Lake & Reservoir

51221010  /  18020117
  • Mercury
    • A Source Unknown

19083 Acres

1996

5A

2027
  • pH
    • A Source Unknown

19083 Acres

2020

5A

2035


Region 5

Big Chico Creek (Butte and Tehama Counties)

River & Stream

5504.200002,5509.140101,5509.140102,5509.140103,5509.140201,5509.140202,5520.400001  /  18020103
  • Aluminum
    • A Source Unknown

93 Miles

2020

5A

2035
  • Bifenthrin
    • A Source Unknown

93 Miles

2014

5A

2035
  • Chromium
    • A Source Unknown

93 Miles

2014

5A

3035
  • Indicator Bacteria
    • A Source Unknown

93 Miles

2014

5A

2035
  • Mercury
    • A Source Unknown

93 Miles

2010

5A

2027
  • Nickel
    • A Source Unknown

93 Miles

2014

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

93 Miles

2014

5A

2035
  • Pyrethroids
    • A Source Unknown

93 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

93 Miles

2014

5A

2035
  • pH
    • A Source Unknown

93 Miles

2014

5A

2027


Region 5

Black Butte Reservoir

Lake & Reservoir

50432000  /  18020115
  • Mercury
    • A Source Unknown

4507 Acres

2002

5A

2027


Region 5

Black Rascal Creek (Merced County)

River & Stream

6535.800000  /  18040001
  • Indicator Bacteria
    • A Source Unknown

10 Miles

2014

5A

2023
  • Oxygen, Dissolved
    • A Source Unknown

10 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

2027


Region 5

Brack Tract Drain, at Woodbridge Rd (San Joaquin County)

River & Stream

6544.000000  /  18040003
  • Arsenic
    • A Source Unknown

3.4 Miles

2014

5A

2027


Region 5

Brite Valley Lake

Lake & Reservoir

55620020  /  18030003
  • Mercury
    • A Source Unknown

68 Acres

2014

5A

2033


Region 5

Britton Lake

Lake & Reservoir

52631012  /  18020003
  • Mercury
    • A Source Unknown

1100 Acres

2010

5A

2027


Region 5

Bull Meadow Creek (Tuolumne County)

River & Stream

53640032  /  18040009
  • Indicator Bacteria
    • A Source Unknown

3.5 Miles

2014

5A

2035


Region 5

Burch Creek (Tehama County)

River & Stream

50420070  /  18020103
  • Toxicity
    • A Source Unknown

24 Miles

2014

5A

2027


Region 5

Burns Valley (Lake County)

River & Stream

5513.510301  / 
  • Oxygen, Dissolved
    • A Source Unknown

3.6 Miles

2020

5A

2035


Region 5

Butte Creek (Butte County)

River & Stream

52040000  /  18020104
  • Chlorodibromomethane
    • A Source Unknown

94 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

94 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

94 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

94 Miles

2010

5A

2027
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

94 Miles

2020

5A

2035


Region 5

Butte Lake

Lake & Reservoir

52636011  /  18020003
  • Mercury
    • A Source Unknown

197 Acres

2014

5A

2033


Region 5

Butte Slough

River & Stream

52030000  /  18020104
  • Dichlorvos
    • A Source Unknown

8.9 Miles

2010

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

8.9 Miles

2014

5A

2027
  • Propanil (DCPA mono- and di-acid degrad)
    • A Source Unknown

8.9 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

8.9 Miles

2014

5A

2027


Region 5

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

River & Stream

51120000  /  18020109
  • Boron
    • A Source Unknown

96 Miles

2010

5A

2021
  • Mercury
    • Resource Extraction

96 Miles

1996

5B

2007
  • Oxygen, Dissolved
    • A Source Unknown

96 Miles

2014

5A

2035
  • Specific Conductivity
    • A Source Unknown

96 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

96 Miles

2014

5A

2019
  • pH
    • A Source Unknown

96 Miles

2014

5A

2027


Region 5

Cache Slough (in Delta Waterways, northern and northwestern portions)

River & Stream

5510.000000  /  18020109
  • Bifenthrin
    • A Source Unknown

12 Miles

2020

5A

2035
  • Cyhalothrin, Lambda
    • A Source Unknown

12 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

12 Miles

2020

5A

2033
  • Permethrin
    • A Source Unknown

12 Miles

2020

5A

2035
  • Pyrethroids
    • A Source Unknown

12 Miles

2020

5A

2035


Region 5

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

River & Stream

53130000  /  18040004
  • Toxicity
    • A Source Unknown

21 Miles

2014

5A

2021


Region 5

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

River & Stream

54400000  /  18040004
  • Indicator Bacteria
    • Urban Runoff/Storm Sewers

7.6 Miles

2014

5B

2008
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

7.6 Miles

2010

5B

2011
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

7.6 Miles

2002

5A

2012


Region 5

California Aqueduct (Clifton Court Forebay to Panoche Creek)

River & Stream

6541.100000,6541.200000,6542.200303,6542.310101,6542.310201,6543.000302,6543.000402,6543.000403,6544.000000,6575.000000,(Total Count: 11)  / 
  • Chlorodibromomethane
    • A Source Unknown

109 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

109 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

109 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

109 Miles

2020

5A

2035


Region 5

California Aqueduct (Panoche Creek to Grapevine)

River & Stream

7551.110000,7551.120000,7556.300605,7557.100002,7557.200200,7557.300000,7558.400000,7558.500107,7558.600100  / 
  • Aluminum
    • A Source Unknown

185 Miles

2020

5A

2035
  • pH
    • A Source Unknown

185 Miles

2020

5A

2035


Region 5

California, Lake

Lake & Reservoir

50810000  /  18020102
  • Mercury
    • A Source Unknown

108 Acres

2014

5A

2027


Region 5

Camanche Reservoir

Lake & Reservoir

53120000  /  18040005
  • Copper
    • A Source Unknown

7389 Acres

2002

5A

2020
  • Manganese
    • A Source Unknown

7389 Acres

2020

5A

2035
  • Mercury
    • A Source Unknown

7389 Acres

2010

5A

2027
  • Zinc
    • A Source Unknown

7389 Acres

2002

5A

2021


Region 5

Camp Far West Reservoir

Lake & Reservoir

51631013  /  18020126
  • Mercury
    • A Source Unknown

1945 Acres

2002

5A

2027


Region 5

Canal Creek

River & Stream

6535.800000,6535.900000  / 
  • Copper
    • A Source Unknown

31 Miles

2020

5A

2035


Region 5

Cantua Creek

River & Stream

55111011  /  18030011
  • Chlorpyrifos
    • Agriculture

26 Miles

2014

5A

2027
  • Selenium
    • A Source Unknown

26 Miles

2014

5A

2027
  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • A Source Unknown

26 Miles

2014

5A

2027


Region 5

Canyon Creek (Modoc County)

River & Stream

52651032  /  18020002
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

2021


Region 5

Carson Creek (from WWTP to Deer Creek)

River & Stream

53222013  /  18040005
  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2020

5A

2035


Region 5

Castac Lake

Lake & Reservoir

55630063  /  18030003
  • Mercury
    • A Source Unknown

278 Acres

2014

5A

2033


Region 5

Castle Creek, Lower (Nevada County)

River & Stream

51734010  /  18020125
  • pH
    • A Source Unknown

4 Miles

2014

5A

2027


Region 5

Castle Creek, Upper (Nevada County)

River & Stream

51734010  /  18020125
  • pH
    • A Source Unknown

4 Miles

2014

5A

2027


Region 5

Cherokee Creek (Sierra County)

River & Stream

51753044  /  18020125
  • pH
    • A Source Unknown

5.8 Miles

2014

5A

2027


Region 5

Chicken Ranch Slough

River & Stream

5519.210000  /  18020111
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

8.4 Miles

1998

5B

2004
  • Diazinon
    • Urban Runoff/Storm Sewers

8.4 Miles

1998

5B

2004
  • Pyrethroids
    • A Source Unknown

8.4 Miles

2010

5B

2019
  • Toxicity
    • A Source Unknown

8.4 Miles

2014

5A

2021


Region 5

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

River & Stream

5504.200002  /  18020103
  • Toxicity
    • A Source Unknown

5.4 Miles

2014

5A

2021


Region 5

Clear Creek (below Whiskeytown Lake, Shasta County)

River & Stream

5508.100001,5508.100002,5524.610000,5524.620001,5524.620002,5524.700003  /  18020112
  • Mercury
    • A Source Unknown

18 Miles

2010

5A

2027


Region 5

Clear Lake

Lake & Reservoir

51352000  /  18020116
  • Mercury
    • A Source Unknown

40070 Acres

1988

5B

2003
  • Microcystins
    • A Source Unknown

40070 Acres

2020

5A

2035
  • Nutrients
    • A Source Unknown

40070 Acres

1986

5B

2007
  • Oxygen, Dissolved
    • A Source Unknown

40070 Acres

2020

5A

2035
  • pH
    • A Source Unknown

40070 Acres

2020

5A

2033


Region 5

Clifton Court (in Delta Waterways, export portion)

Lake & Reservoir

6544.000000  / 
  • Aluminum
    • A Source Unknown

206 Acres

2020

5A

2035


Region 5

Cole Creek (Lake County)

River & Stream

5513.550200  / 
  • Oxygen, Dissolved
    • A Source Unknown

15 Miles

2020

5A

2035
  • Total Dissolved Solids
    • A Source Unknown

15 Miles

2020

5A

2035


Region 5

Colusa Basin Drain

River & Stream

5520.100001,5520.100002,5520.210000  /  18020104
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

72 Miles

2010

5A

2021
  • Dieldrin
    • A Source Unknown

72 Miles

2010

5A

2021
  • Group A Pesticides
    • A Source Unknown

72 Miles

1998

5A

2019
  • Low Dissolved Oxygen
    • A Source Unknown

72 Miles

2010

5A

2021
  • Mercury
    • A Source Unknown

72 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

72 Miles

2020

5A

2035


Region 5

Combie, Lake

Lake & Reservoir

51633011  /  18020126
  • Mercury
    • A Source Unknown

362 Acres

2002

5A

2015


Region 5

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

River & Stream

5518.600301, 5518.600302  /  18020121
  • Toxicity
    • A Source Unknown

9.9 Miles

2014

5A

2021


Region 5

Contra Loma Reservoir

Lake & Reservoir

54400000  /  18040003
  • Mercury
    • A Source Unknown

62 Acres

2014

5A

2033


Region 5

Coon Creek (from confluence of Orr and Dry Creeks to East Side Canal, Placer and Sutter Counties)

River & Stream

5514.220204,5514.220205,5519.220000  /  18020109
  • Ammonia as N, Total
    • A Source Unknown

30 Miles

2014

5A

2027
  • Indicator Bacteria
    • A Source Unknown

30 Miles

2014

5A

2027


Region 5

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

River & Stream

51922000  /  18020109
  • Indicator Bacteria
    • A Source Unknown

5.8 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

5.8 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

5.8 Miles

2014

5A

2021


Region 5

Coon Hollow Creek (El Dorado County)

River & Stream

51432024  /  18020129
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

1.7 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

1.7 Miles

2014

5A

2027


Region 5

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

River & Stream

6531.110000,6532.210201,6544.000000  /  18040003
  • Indicator Bacteria
    • A Source Unknown

37 Miles

2014

5A

2021
  • Invasive Species
    • A Source Unknown

37 Miles

2010

5A

2019
  • Mercury
    • A Source Unknown

37 Miles

2014

5A

2033
  • Nickel
    • A Source Unknown

37 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

37 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

37 Miles

2010

5A

2035


Region 5

Cosumnes River, North Fork

River & Stream

53223080  /  18040013
  • Aluminum
    • A Source Unknown

49 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

49 Miles

2020

5A

2035


Region 5

Cosumnes River, Upper (above Michigan Bar)

River & Stream

53223080  /  18040005
  • Invasive Species
    • A Source Unknown

17 Miles

2010

5A

2019
  • Oxygen, Dissolved
    • A Source Unknown

17 Miles

2010

5A

2035


Region 5

Cottonwood Creek (S Madera County)

River & Stream

54520000  /  18040001
  • Copper
    • A Source Unknown

29 Miles

2014

5A

2035
  • Diuron
    • Agriculture

29 Miles

2014

5C

2020
  • Indicator Bacteria
    • A Source Unknown

29 Miles

2014

5A

2021


Region 5

Cottonwood Creek (Shasta and Tehama Counties)

River & Stream

5508.100001,5508.200000  /  18020102
  • Aluminum
    • A Source Unknown

22 Miles

2020

5A

2035


Region 5

Cow Creek (below Little Cow Creek)

River & Stream

5508.100002  / 
  • Aluminum
    • A Source Unknown

7.5 Miles

2020

5A

2033


Region 5

Coyote Creek (Tehama County)

River & Stream

50420070  /  18020103
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2014

5A

2027


Region 5

Cross Creek (Kings and Tulare Counties)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

32 Miles

2014

5A

2021


Region 5

Curry Creek (Placer and Sutter Counties)

River & Stream

51922000  /  18020111
  • Pyrethroids
    • A Source Unknown

12 Miles

2010

5B

2019
  • Toxicity
    • A Source Unknown

12 Miles

2014

5A

2021


Region 5

Curtis Creek (Tuolumne County)

River & Stream

53631021  /  18040009
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2010

5A

2027
  • pH
    • A Source Unknown

12 Miles

2010

5A

2027


Region 5

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

River & Stream

51332010  /  18020116
  • Mercury
    • A Source Unknown

6.3 Miles

2010

5A

2027


Region 5

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

River & Stream

51332010  /  18020116
  • Mercury
    • A Source Unknown

4.8 Miles

2010

5A

2027


Region 5

Davis Creek Reservoir

Lake & Reservoir

51332010  /  18020116
  • Mercury
    • A Source Unknown

163 Acres

1988

5A

2017


Region 5

Davis No 2, unnamed spillway (near N Podesta Lane)

Lake & Reservoir

53130000  /  18040004
  • Mercury
    • A Source Unknown

119 Acres

2014

5A

2027


Region 5

Deadman Creek (Merced County)

River & Stream

53570000  /  18040001
  • Arsenic
    • A Source Unknown

11 Miles

2014

5A

2027
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2027
  • pH
    • A Source Unknown

11 Miles

2014

5A

2027


Region 5

Deep Slough (Merced County)

River & Stream

53570000  /  18040001
  • pH
    • A Source Unknown

4.6 Miles

2010

5A

2021


Region 5

Deer Creek (Nevada County, Above Scotts Flat Reservoir to the Confluence of Deer Creek North and South Forks)

River & Stream

51720011  /  18020125
  • pH
    • A Source Unknown

0.71 Miles

2014

5A

2027


Region 5

Deer Creek (Sacramento County)

River & Stream

6531.110000,6531.120000,6532.220001,6532.220002,6532.220005  /  18040013
  • Oxygen, Dissolved
    • A Source Unknown

44 Miles

2020

5A

2035


Region 5

Deer Creek (Tulare County)

River & Stream

55810000  /  18030005
  • Chlorpyrifos
    • A Source Unknown

58 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

58 Miles

2014

5A

2021
  • pH (high)
    • A Source Unknown

58 Miles

2010

5A

2021


Region 5

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

River & Stream

51720012  /  18020125
  • Indicator Bacteria
    • A Source Unknown

16 Miles

2014

5A

2027
  • Mercury
    • A Source Unknown

16 Miles

2010

5A

2027
  • pH
    • A Source Unknown

16 Miles

2014

5A

2027


Region 5

Del Puerto Creek (Stanislaus County)

River & Stream

6535.500000,6541.100000,6542.100301,6542.100302,6542.100303,6542.100304,6542.100305  / 
  • Boron
    • A Source Unknown

29 Miles

2020

5A

2035
  • Chlorpyrifos
    • Agriculture

29 Miles

2020

5C

2026
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

29 Miles

2020

5A

2035
  • Dieldrin
    • A Source Unknown

29 Miles

2020

5A

2023
  • Diuron
    • A Source Unknown

29 Miles

2020

5C

2021
  • Linuron
    • A Source Unknown

29 Miles

2020

5A

2035
  • Nickel
    • A Source Unknown

29 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

29 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

29 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

29 Miles

2020

5A

2027
  • pH
    • A Source Unknown

29 Miles

2020

5A

2033


Region 5

Delta Waterways (Stockton Ship Channel)

Estuary

54400000  /  18040004
  • Aluminum
    • A Source Unknown

1603 Acres

2020

5A

2035
  • Boron
    • A Source Unknown

1603 Acres

2020

5A

2033
  • Chlorpyrifos
    • A Source Unknown

1603 Acres

1992

5B

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1603 Acres

1992

5A

2027
  • Diazinon
    • A Source Unknown

1603 Acres

1992

5B

2007
  • Dioxin
    • A Source Unknown

1603 Acres

2006

5A

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

1603 Acres

2006

5A

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

1603 Acres

1992

5A

2011
  • Invasive Species
    • A Source Unknown

1603 Acres

2006

5A

2019
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

1603 Acres

1992

5B

2011
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

1603 Acres

2002

5B

2007
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1603 Acres

2006

5A

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

1603 Acres

2014

5A

2027
  • Toxicity
    • A Source Unknown

1603 Acres

2014

5A

2027


Region 5

Delta Waterways (central portion)

Estuary

54400000  /  18040003
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

11425 Acres

1992

5A

2011
  • Diazinon
    • A Source Unknown

11425 Acres

1992

5B

2007
  • Group A Pesticides
    • A Source Unknown

11425 Acres

1992

5A

2011
  • Invasive Species
    • A Source Unknown

11425 Acres

2006

5A

2019
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

11425 Acres

1992

5B

2011
    All resource extraction sources are abandoned mines.
  • Toxicity
    • A Source Unknown

11425 Acres

2014

5A

2019


Region 5

Delta Waterways (eastern portion)

Estuary

54400000  /  18040005
  • Chlorpyrifos
    • A Source Unknown

2972 Acres

1992

5B

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2972 Acres

1992

5A

2011
  • Diazinon
    • A Source Unknown

2972 Acres

1992

5B

2007
  • Group A Pesticides
    • A Source Unknown

2972 Acres

1992

5A

2027
  • Invasive Species
    • A Source Unknown

2972 Acres

2006

5A

2019
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

2972 Acres

1992

5B

2011
    All resource extraction sources are abandoned mines.
  • Toxicity
    • A Source Unknown

2972 Acres

2014

5A

2019


Region 5

Delta Waterways (export area)

Estuary

54400000  /  18040003
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

583 Acres

1992

5A

2011
  • Electrical Conductivity
    • A Source Unknown

583 Acres

2006

5A

2019
  • Group A Pesticides
    • A Source Unknown

583 Acres

1992

5A

2011
  • Invasive Species
    • A Source Unknown

583 Acres

2006

5A

2019
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

583 Acres

1992

5B

2011
    All resource extraction sources are abandoned mines.
  • Toxicity
    • A Source Unknown

583 Acres

2014

5A

2019


Region 5

Delta Waterways (northern portion)

Estuary

51000000  /  18020109
  • Chlordane
    • A Source Unknown

6795 Acres

2010

5A

2029
  • Chlorpyrifos
    • A Source Unknown

6795 Acres

1992

5B

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

6795 Acres

1992

5A

2011
  • Diazinon
    • A Source Unknown

6795 Acres

1992

5B

2007
  • Dieldrin
    • A Source Unknown

6795 Acres

2010

5A

2011
  • Group A Pesticides
    • A Source Unknown

6795 Acres

1992

5A

2011
  • Invasive Species
    • A Source Unknown

6795 Acres

2006

5A

2019
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

6795 Acres

1992

5B

2011
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

6795 Acres

1992

5A

2019
  • Toxicity
    • A Source Unknown

6795 Acres

2014

5A

2027


Region 5

Delta Waterways (northwestern portion)

Estuary

51000000  /  18020109
  • Chlorpyrifos
    • A Source Unknown

2587 Acres

1992

5B

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2587 Acres

1992

5A

2011
  • Diazinon
    • A Source Unknown

2587 Acres

1992

5B

2007
  • Electrical Conductivity
    • A Source Unknown

2587 Acres

2006

5A

2027
  • Group A Pesticides
    • A Source Unknown

2587 Acres

1992

5A

2027
  • Invasive Species
    • A Source Unknown

2587 Acres

2006

5A

2019
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

2587 Acres

1992

5B

2011
    All resource extraction sources are abandoned mines.
  • Toxicity
    • A Source Unknown

2587 Acres

2014

5A

2019


Region 5

Delta Waterways (southern portion)

Estuary

54400000  /  18040002
  • Chlorpyrifos
    • A Source Unknown

3125 Acres

1992

5B

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3125 Acres

1992

5A

2027
  • Diazinon
    • A Source Unknown

3125 Acres

1992

5B

2007
  • Electrical Conductivity
    • A Source Unknown

3125 Acres

2006

5A

2027
  • Group A Pesticides
    • A Source Unknown

3125 Acres

1992

5A

2027
  • Invasive Species
    • A Source Unknown

3125 Acres

2006

5A

2019
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • Urban Runoff/Storm Sewers

3125 Acres

1992

5B

2011
  • Toxicity
    • A Source Unknown

3125 Acres

2014

5A

2019


Region 5

Delta Waterways (western portion)

Estuary

54400000  /  18040003
  • Arsenic
    • A Source Unknown

14524 Acres

2014

5A

2027
  • Chlordane
    • A Source Unknown

14524 Acres

2014

5A

2027
  • Chlorpyrifos
    • Agriculture
    • Urban Runoff/Storm Sewers

14524 Acres

2006

5B

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

14524 Acres

2006

5A

2027
  • Diazinon
    • A Source Unknown

14524 Acres

2006

5B

2007
  • Dieldrin
    • A Source Unknown

14524 Acres

2014

5A

2027
  • Electrical Conductivity
    • A Source Unknown

14524 Acres

2006

5A

2027
  • Group A Pesticides
    • A Source Unknown

14524 Acres

2006

5A

2011
  • Invasive Species
    • A Source Unknown

14524 Acres

2006

5A

2019
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

14524 Acres

2006

5B

2011
    All resource extraction sources are abandoned mines.
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

14524 Acres

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

14524 Acres

2014

5A

2027
  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • A Source Unknown

14524 Acres

2014

5A

2035
  • Toxicity
    • A Source Unknown

14524 Acres

2014

5A

2019


Region 5

Delta-Mendota Canal (DMC) (Old River to ONeil Forebay)

River & Stream

6541.100000,6541.200000,6543.000403,6544.000000,6575.000000  / 
  • Bromoform
    • A Source Unknown

69 Miles

2020

5A

2033
  • Chlorodibromomethane
    • A Source Unknown

69 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

69 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

69 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

69 Miles

2020

5A

2035


Region 5

Discovery Bay

Lake & Reservoir

54400000  /  18040003
  • Mercury
    • A Source Unknown

342 Acres

2014

5A

2027


Region 5

Dolly Creek

River & Stream

51854030  /  18020122
  • Copper
    • A Source Unknown

1.5 Miles

1992

5A

2019
    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

1.5 Miles

1992

5A

2019
    All resource extraction sources are abandoned mines.


Region 5

Don Pedro Lake

Lake & Reservoir

53632010  /  18040009
  • Mercury
    • A Source Unknown

11056 Acres

2002

5A

2027


Region 5

Dry Creek (Contra Costa County, partly in Delta Waterways, western portion)

River & Stream

6543.000101,6544.000000  / 
  • Toxicity
    • A Source Unknown

6.8 Miles

2020

5A

2035


Region 5

Dry Creek (Madera County)

River & Stream

54520000  /  18040001
  • Copper
    • A Source Unknown

24 Miles

2014

5A

2035
  • Toxicity
    • A Source Unknown

24 Miles

2014

5A

2027
  • pH
    • A Source Unknown

24 Miles

2014

5A

2027


Region 5

Dry Creek (Placer and Sacramento Counties)

River & Stream

51424010  /  18020111
  • Indicator Bacteria
    • A Source Unknown

27 Miles

2014

5A

2027


Region 5

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

River & Stream

6535.300000,6535.400000,6535.500000  /  18040002
  • Bifenthrin
    • A Source Unknown

35 Miles

2014

5A

2035
  • Chlorpyrifos
    • Agriculture

35 Miles

2010

5C

2026
  • Cyfluthrin
    • A Source Unknown

35 Miles

2014

5A

2035
  • Cyhalothrin, Lambda
    • A Source Unknown

35 Miles

2014

5A

2035
  • Indicator Bacteria
    • A Source Unknown

35 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

35 Miles

2010

5A

2035
  • Pyrethroids
    • A Source Unknown

35 Miles

2020

5C

2035
  • Toxicity
    • A Source Unknown

35 Miles

2014

5A

2027


Region 5

Duck Creek (San Joaquin County)

River & Stream

6531.400000  /  18040002
  • Chlorpyrifos
    • Agriculture

34 Miles

2010

5C

2026
  • Indicator Bacteria
    • A Source Unknown

34 Miles

2014

5A

2027
  • Lead
    • A Source Unknown

34 Miles

2014

5A

2035
  • Mercury
    • A Source Unknown

34 Miles

2010

5A

2019
  • Oxygen, Dissolved
    • A Source Unknown

34 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

34 Miles

2014

5A

2027


Region 5

Duck Slough (Merced County)

River & Stream

6535.700000,6535.800000  /  18040001
  • Bifenthrin
    • A Source Unknown

28 Miles

2010

5C

2035
  • Indicator Bacteria
    • A Source Unknown

28 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

28 Miles

2014

5A

2027


Region 5

Dunn Creek (Mt Diablo Mine to Marsh Creek)

River & Stream

6543.000201  /  18040003
  • Mercury
    • A Source Unknown

0.65 Miles

1994

5A

2015
    All resource extraction sources are abandoned mines.
  • Metals
    • A Source Unknown

0.65 Miles

1994

5A

2027
    All resource extraction sources are abandoned mines.


Region 5

East Park Reservoir

Lake & Reservoir

52233000  /  18020115
  • Mercury
    • A Source Unknown

1698 Acres

2010

5A

2027


Region 5

Eastman Lake (Madera County)

Lake & Reservoir

6539.110501,6539.110502,6539.120000,6539.200302  /  18040007
  • Mercury
    • A Source Unknown

1533 Acres

2014

5A

2027


Region 5

Eastman Lake (Shasta County)

Lake & Reservoir

52641053  /  18020003
  • pH
    • A Source Unknown

19 Acres

2010

5A

2021


Region 5

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

River & Stream

55810000  /  18030012
  • Chlorpyrifos
    • A Source Unknown

11 Miles

2010

5A

2021


Region 5

Elder Creek (Sacramento County)

River & Stream

5519.110000  /  18020109
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

11 Miles

1998

5B

2004
  • Diazinon
    • Urban Runoff/Storm Sewers

11 Miles

1998

5B

2004
  • Pyrethroids
    • A Source Unknown

11 Miles

2010

5B

2019
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2021


Region 5

Elk Bayou (Tulare County)

River & Stream

55810000  /  18030012
  • Chlorpyrifos
    • A Source Unknown

11 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2027
  • pH
    • A Source Unknown

11 Miles

2014

5A

2027


Region 5

Empire Tract (in Delta Waterways, eastern portion)

River & Stream

6544.000000  / 
  • Oxygen, Dissolved
    • A Source Unknown

2.3 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

2.3 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

2.3 Miles

2020

5A

2035


Region 5

Englebright Lake

Lake & Reservoir

51714013  /  18020125
  • Mercury
    • A Source Unknown

754 Acres

2002

5A

2027


Region 5

Fall River (Pit)

River & Stream

5526.410301,5526.410302,5526.410503,5526.410506,5526.430201  /  18020003
  • Sedimentation/Siltation
    • A Source Unknown

36 Miles

1996

5A

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


Region 5

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

River & Stream

51832062  /  18020123
  • Toxicity
    • A Source Unknown

22 Miles

2014

5A

2021


Region 5

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

River & Stream

51540000  /  18020109
  • Chlorpyrifos
    • Agriculture

42 Miles

1996

5B

2016
  • Group A Pesticides
    • A Source Unknown

42 Miles

1990

5A

2011
  • Mercury
    • A Source Unknown

42 Miles

1992

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

42 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

42 Miles

2014

5A

2027


Region 5

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

River & Stream

51833050  /  18020123
  • Toxicity
    • A Source Unknown

77 Miles

2014

5A

2027
    This listing apples to the reach from Long Valley Creek to Lake Oroville.


Region 5

Feather River, North Fork (below Lake Almanor)

River & Stream

51812000  /  18020121
  • Mercury
    • A Source Unknown

54 Miles

2006

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

54 Miles

2024

5A

2021
  • Temperature, water
    • A Source Unknown

54 Miles

2006

5A

2019
  • Toxicity
    • A Source Unknown

54 Miles

2014

5A

2027
    This lisitng is for Invertibrate Toxicity. This listing is from Poe Reservoir Dam to Lake Oroville.


Region 5

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

River & Stream

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

33 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

33 Miles

2014

5A

2027


Region 5

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

River & Stream

51860031  /  18020121
  • Toxicity
    • A Source Unknown

37 Miles

2014

5A

2027


Region 5

Fingers Lake

Lake & Reservoir

50420070  /  18020103
  • Mercury
    • A Source Unknown

10 Acres

2014

5A

2027


Region 5

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

River & Stream

6544.000000  /  18040003
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

1.7 Miles

1998

5B

2007
  • Diazinon
    • Urban Runoff/Storm Sewers

1.7 Miles

1998

5B

2007
  • Indicator Bacteria
    • A Source Unknown

1.7 Miles

2014

5B

2008
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

1.7 Miles

2002

5A

2027


Region 5

Folsom Lake

Lake & Reservoir

51423010  /  18020128
  • Mercury
    • A Source Unknown

11064 Acres

2010

5A

2027


Region 5

Forbes Creek (Lake County)

River & Stream

5513.550304,5513.550600  / 
  • Aluminum
    • A Source Unknown

5 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

5 Miles

2020

5A

2035


Region 5

Franks Tract (in Delta Waterways, central portion)

Lake & Reservoir

6544.000000  / 
  • Temperature, water
    • A Source Unknown

476 Acres

2020

5A

2034


Region 5

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

River & Stream

6531.400000,6544.000000  /  18040002
  • Bifenthrin
    • A Source Unknown

6.5 Miles

2014

5A

2035
  • Chlorpyrifos
    • Agriculture

6.5 Miles

2010

5B

2007
  • Indicator Bacteria
    • A Source Unknown

6.5 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

6.5 Miles

2010

5A

2027
  • Pyrethroids
    • A Source Unknown

6.5 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

6.5 Miles

2014

5A

2027


Region 5

French Ravine

River & Stream

51632011  /  18020126
  • Indicator Bacteria
    • A Source Unknown

1.7 Miles

2014

5A

2027


Region 5

Freshwater Creek (Little Valley to Salt Creek, Colusa County)

River & Stream

56130010  /  18020104
  • Indicator Bacteria
    • A Source Unknown

31 Miles

2014

5A

2027


Region 5

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

River & Stream

6539.310301,6539.310302,6539.310303,6539.310401,6539.310402,6539.310403,6539.310404,6539.310600  /  18040007
  • Low Dissolved Oxygen
    • A Source Unknown

31 Miles

2010

5A

2021


Region 5

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

River & Stream

55180000  /  18030012
  • Chlorpyrifos
    • A Source Unknown

15 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

2027


Region 5

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

River & Stream

52030000  /  18020106
  • Aluminum
    • A Source Unknown

11 Miles

2020

5A

2035
  • Diazinon
    • Agriculture

11 Miles

2010

5C

2026
  • Diuron
    • Agriculture

11 Miles

2010

5A

2027
  • Oxyfluorfen
    • A Source Unknown

11 Miles

2010

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2027
  • pH
    • A Source Unknown

11 Miles

2010

5A

2035


Region 5

Gold Run (Nevada County)

River & Stream

51720012  /  18020126
  • Mercury
    • A Source Unknown

1.9 Miles

2010

5A

2021


Region 5

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

River & Stream

51130012  /  18020110
  • Oxygen, Dissolved
    • A Source Unknown

7.6 Miles

2010

5A

2027


Region 5

Grant Line Canal (in Delta Waterways, southern portion)

River & Stream

6544.000000  / 
  • Oxygen, Dissolved
    • A Source Unknown

7.9 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

7.9 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

7.9 Miles

2020

5A

2035


Region 5

Grant Line Canal subwatershed at Clifton Court Rd (San Joaquin County)

River & Stream

54400000  /  18040003
  • Specific Conductivity
    • A Source Unknown

5.2 Miles

2014

5A

2027


Region 5

Grant Line Canal subwatershed near Calpack Rd (San Joaquin County)

River & Stream

54400000  /  18040003
  • Specific Conductivity
    • A Source Unknown

11 Miles

2014

5A

2027


Region 5

Grasslands Marshes

Wetland, Freshwater

54120000  /  18040001
  • Electrical Conductivity
    • A Source Unknown

7962 Acres

1998

5A

2027
  • Selenium
    • A Source Unknown

7962 Acres

1996

5B

2000


Region 5

Grayson Drain (at outfall)

River & Stream

6535.500000,6541.100000  /  18040002
  • Indicator Bacteria
    • A Source Unknown

5.3 Miles

2014

5A

2021
  • Toxicity
    • A Source Unknown

5.3 Miles

2014

5A

2027


Region 5

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

River & Stream

52040000  /  18020106
  • Toxicity
    • A Source Unknown

7.9 Miles

2014

5A

2027


Region 5

Harding Drain

River & Stream

6535.500000  /  18040002
  • Chlorpyrifos
    • Agriculture

8.3 Miles

1998

5C

2026
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

8.3 Miles

2010

5A

2021
  • Hexachlorobenzene/ HCB
    • A Source Unknown

8.3 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

8.3 Miles

2014

5A

2027
  • Lindane/gamma Hexachlorocyclohexane (gamma-HCH)
    • A Source Unknown

8.3 Miles

2010

5A

2021
  • alpha.-BHC (Benzenehexachloride or alpha-HCH)
    • A Source Unknown

8.3 Miles

2010

5A

2021


Region 5

Hat Creek (Shasta County)

River & Stream

5526.310401,5526.340103,5526.340200,5526.340400,5526.340500,5526.350201,5526.350202,5526.350402,5526.350500  /  18020003
  • Aluminum
    • A Source Unknown

47 Miles

2020

5A

2035
  • Arsenic
    • A Source Unknown

47 Miles

2020

5A

2033
  • Boron
    • A Source Unknown

47 Miles

2020

5A

2033


Region 5

Hell Hole Reservoir

Lake & Reservoir

5514.450102,5514.450103  /  18020128
  • Mercury
    • A Source Unknown

1017 Acres

2010

5A

2021


Region 5

Hensley Lake

Lake & Reservoir

53932010  /  18040007
  • Mercury
    • A Source Unknown

1669 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

1669 Acres

2010

5A

2027
  • pH
    • A Source Unknown

1669 Acres

2010

5A

2021


Region 5

Hetch Hetchy Reservoir

Lake & Reservoir

53660091  /  18040009
  • Mercury
    • A Source Unknown

1840 Acres

2010

5A

2027


Region 5

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

River & Stream

6535.500000,6535.600000  /  18040001
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

2027


Region 5

Holland Cut (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • pH
    • A Source Unknown

1.7 Miles

2020

5A

2035


Region 5

Honcut Creek (Butte and Yuba Counties)

River & Stream

5515.400000  /  18020106
  • Indicator Bacteria
    • A Source Unknown

9.6 Miles

2014

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

9.6 Miles

2010

5A

2035


Region 5

Horse Creek (Rising Star Mine to Shasta Lake)

River & Stream

5506.200701  /  18020005
  • Cadmium
    • A Source Unknown

0.48 Miles

1998

5A

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

0.48 Miles

1998

5A

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

0.48 Miles

1998

5A

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

0.48 Miles

1998

5A

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

0.48 Miles

2010

5A

2021


Region 5

Hospital Creek (San Joaquin and Stanislaus Counties)

River & Stream

54110000  /  18040002
  • Boron
    • A Source Unknown

20 Miles

2020

5A

2033
  • Chlorpyrifos
    • Agriculture

20 Miles

2010

5C

2026
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

20 Miles

2010

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

20 Miles

2010

5A

2027
  • Dieldrin
    • A Source Unknown

20 Miles

2010

5A

2027
  • Diuron
    • Agriculture

20 Miles

2014

5C

2020
  • Indicator Bacteria
    • A Source Unknown

20 Miles

2014

5A

2023
  • Lead
    • A Source Unknown

20 Miles

2014

5A

2035
  • Methyl Parathion
    • Agriculture

20 Miles

2010

5C

2018
  • Nickel
    • A Source Unknown

20 Miles

2010

5A

2035
  • Pyrethroids
    • A Source Unknown

20 Miles

2010

5C

2037
  • Salinity
    • A Source Unknown

20 Miles

2010

5A

2021
  • Specific Conductivity
    • A Source Unknown

20 Miles

2014

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

20 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

20 Miles

2014

5C

2024
  • Trifluralin
    • A Source Unknown

20 Miles

2010

5A

2021
  • pH
    • A Source Unknown

20 Miles

2020

5A

2033


Region 5

Humbug Creek (Diggins Creek to Yuba River, South Fork)

River & Stream

5517.320301,5517.320304  /  18020125
  • Chromium
    • A Source Unknown

2.3 Miles

2014

5A

2027
  • Copper
    • A Source Unknown

2.3 Miles

1992

5A

2027
    All resource extraction sources are abandoned mines.
  • Iron
    • A Source Unknown

2.3 Miles

2014

5A

2027
  • Mercury
    • A Source Unknown

2.3 Miles

1992

5A

2021
    All resource extraction sources are abandoned mines.
  • Sedimentation/Siltation
    • A Source Unknown

2.3 Miles

1992

5A

2012
    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

2.3 Miles

1992

5A

2027
    All resource extraction sources are abandoned mines.
  • pH
    • A Source Unknown

2.3 Miles

2014

5A

2027


Region 5

Hume Lake

Lake & Reservoir

55234281  /  18030010
  • Oxygen, Dissolved
    • A Source Unknown

87 Acres

2010

5A

2027
  • pH
    • A Source Unknown

87 Acres

2010

5A

2027


Region 5

Indian Creek (from Antelope Lake to East Branch of North Fork Feather River, Plumas County)

River & Stream

51853044  /  18020122
  • Oxygen, Dissolved
    • A Source Unknown

37 Miles

2010

5A

2035
  • pH
    • A Source Unknown

37 Miles

2010

5A

2035


Region 5

Indian Valley Reservoir (Lake County)

Lake & Reservoir

5513.400103,5513.400201,5513.400203  /  18020116
  • Mercury
    • A Source Unknown

3645 Acres

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

3645 Acres

2020

5A

2035


Region 5

Ingalsbe Slough (tributary to Merced River, Merced County)

River & Stream

6535.600000,6535.800000  /  18040001
  • Toxicity
    • A Source Unknown

6.7 Miles

2014

5A

2027


Region 5

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

River & Stream

6541.100000  /  18040002
  • Arsenic
    • A Source Unknown

2.8 Miles

2010

5A

2027
  • Bifenthrin
    • A Source Unknown

2.8 Miles

2014

5A

2035
  • Boron
    • A Source Unknown

2.8 Miles

2020

5A

2033
  • Chlorpyrifos
    • Agriculture

2.8 Miles

2014

5C

2026
  • Cyfluthrin
    • A Source Unknown

2.8 Miles

2014

5A

2035
  • Cyhalothrin, Lambda
    • A Source Unknown

2.8 Miles

2014

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

2.8 Miles

2014

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2.8 Miles

2014

5A

2027
  • Diazinon
    • A Source Unknown

2.8 Miles

2010

5A

2035
  • Dimethoate
    • A Source Unknown

2.8 Miles

2014

5A

2035
  • Diuron
    • Agriculture

2.8 Miles

2014

5C

2020
  • Esfenvalerate/Fenvalerate
    • A Source Unknown

2.8 Miles

2014

5A

2035
  • Imidacloprid
    • A Source Unknown

2.8 Miles

2020

5A

2035
  • Indicator Bacteria
    • A Source Unknown

2.8 Miles

2014

5A

2027
  • Linuron
    • A Source Unknown

2.8 Miles

2014

5A

2035
  • Metolachlor
    • A Source Unknown

2.8 Miles

2020

5A

2035
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

2.8 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

2.8 Miles

2014

5A

2035
  • Pyrethroids
    • A Source Unknown

2.8 Miles

2006

5C

2037
    The pyrethroids of concern for this listing are bifenthrin, lamdba-cyhalothrin, esfenvalerate/fenvalerate, cypermethrin, and permethrin.
  • Specific Conductivity
    • A Source Unknown

2.8 Miles

2014

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

2.8 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

2.8 Miles

2014

5C

2024


Region 5

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

River & Stream

54110000  /  18040002
  • Chlorpyrifos
    • Agriculture

2.1 Miles

2002

5C

2026
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

2.1 Miles

2010

5A

2021
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2.1 Miles

2010

5A

2027
  • Dieldrin
    • A Source Unknown

2.1 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

2.1 Miles

2014

5A

2021
  • Pyrethroids
    • A Source Unknown

2.1 Miles

2006

5C

2037
  • Salinity
    • A Source Unknown

2.1 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

2.1 Miles

2014

5A

2021


Region 5

Isabella Lake

Lake & Reservoir

55421010  /  18030003
  • Mercury
    • A Source Unknown

7710 Acres

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

7710 Acres

2010

5A

2027
  • pH
    • A Source Unknown

7710 Acres

2010

5A

2021


Region 5

Jack Slough

River & Stream

5515.400000  /  18020106
  • Diazinon
    • Agriculture

16 Miles

2002

5C

2026
  • Oxygen, Dissolved
    • A Source Unknown

16 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

16 Miles

2014

5A

2021


Region 5

Jahant Slough (San Joaquin County)

River & Stream

6531.200000  / 
  • Oxygen, Dissolved
    • A Source Unknown

7.9 Miles

2020

5A

2035


Region 5

James Bypass (Fresno County)

River & Stream

55120000  /  18030012
  • Toxicity
    • A Source Unknown

14 Miles

2014

5A

2027


Region 5

James Creek

River & Stream

5512.240101,5512.240103  /  18020117
  • Mercury
    • A Source Unknown

6.8 Miles

1992

5A

2017
    Resource extraction sources are abandoned mines.
  • Nickel
    • A Source Unknown

6.8 Miles

1992

5A

2020
    Resource extraction sources are abandoned mines.


Region 5

Kanaka Creek

River & Stream

5517.410203,5517.420201,5517.420202,5517.420203  /  18020125
  • Arsenic
    • A Source Unknown

10 Miles

2002

5A

2027
    All resource extraction sources are abandoned mines.


Region 5

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

River & Stream

51922000  /  18020111
  • Bifenthrin
    • A Source Unknown

6.4 Miles

2014

5B

2019
  • Cyfluthrin
    • A Source Unknown

6.4 Miles

2014

5B

2019
  • Cyhalothrin, Lambda
    • A Source Unknown

6.4 Miles

2014

5B

2019
  • Cypermethrin
    • A Source Unknown

6.4 Miles

2014

5B

2019
  • Deltamethrin
    • A Source Unknown

6.4 Miles

2014

5A

2027
  • Pyrethroids
    • A Source Unknown

6.4 Miles

2010

5B

2019
  • Toxicity
    • A Source Unknown

6.4 Miles

2014

5A

2021


Region 5

Kaseberg Creek, Lower

River & Stream

5519.220000  / 
  • Bifenthrin
    • A Source Unknown

0.19 Miles

2020

5A

2035
  • Cyfluthrin
    • A Source Unknown

0.19 Miles

2020

5A

2035
  • Cypermethrin
    • A Source Unknown

0.19 Miles

2020

5A

2035
  • Pyrethroids
    • A Source Unknown

0.19 Miles

2020

5A

2035


Region 5

Kaseberg Creek, unnamed eastern tributary (from Green Grove Ln to Del Webb Blvd)

River & Stream

51922000  /  18020109
  • Bifenthrin
    • A Source Unknown

1.3 Miles

2014

5B

2019
  • Cyfluthrin
    • A Source Unknown

1.3 Miles

2014

5B

2019
  • Cyhalothrin, Lambda
    • A Source Unknown

1.3 Miles

2014

5B

2019
  • Cypermethrin
    • A Source Unknown

1.3 Miles

2014

5B

2019
  • Toxicity
    • A Source Unknown

1.3 Miles

2014

5A

2027


Region 5

Kaseberg Creek, unnamed southeastern tributary (from Silverado Middle School to Timber Creek Golf Course, Placer County)

River & Stream

51922000  /  18020111
  • Bifenthrin
    • A Source Unknown

2.5 Miles

2014

5B

2019
  • Cyfluthrin
    • A Source Unknown

2.5 Miles

2014

5B

2019
  • Cyhalothrin, Lambda
    • A Source Unknown

2.5 Miles

2014

5B

2019
  • Cypermethrin
    • A Source Unknown

2.5 Miles

2014

5B

2019
  • Deltamethrin
    • A Source Unknown

2.5 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

2.5 Miles

2014

5A

2027


Region 5

Kaseberg Creek, unnamed southern tributary (from Baseline Road to Timber Creek Golf Course, Placer County)

River & Stream

51922000  /  18020111
  • Bifenthrin
    • A Source Unknown

1.1 Miles

2014

5B

2019
  • Cyfluthrin
    • A Source Unknown

1.1 Miles

2014

5B

2019
  • Cyhalothrin, Lambda
    • A Source Unknown

1.1 Miles

2014

5B

2019
  • Cypermethrin
    • A Source Unknown

1.1 Miles

2014

5B

2019
  • Deltamethrin
    • A Source Unknown

1.1 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

1.1 Miles

2014

5A

2027


Region 5

Kaweah Lake

Lake & Reservoir

55344010  /  18030007
  • Alkalinity as CaCO3
    • A Source Unknown

1702 Acres

2020

5A

2033
  • Mercury
    • A Source Unknown

1702 Acres

2002

5A

2027


Region 5

Kaweah River (below Terminus Dam, Tulare County)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

9.4 Miles

2014

5A

2021
  • pH
    • A Source Unknown

9.4 Miles

2010

5A

2021


Region 5

Kaweah River East North Fork

River & Stream

7553.410703  / 
  • Alkalinity as CaCO3
    • A Source Unknown

5.3 Miles

2020

5A

2033


Region 5

Kaweah River, Lower (includes St Johns River)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

27 Miles

2014

5A

2021


Region 5

Kaweah River, Marble Fork (Confl w Kaweah River Middle Fork to Marble Falls)

River & Stream

7553.410401,7553.410402,7553.410403,7553.410404,7553.410405  /  18030007
  • Alkalinity as CaCO3
    • A Source Unknown

16 Miles

2020

5A

2033


Region 5

Kaweah River, Middle Fork (Confl w Kaweah River East Fork to Dome Creek)

River & Stream

55343023  /  18030007
  • Alkalinity as CaCO3
    • A Source Unknown

10 Miles

2020

5A

2033
  • Mercury
    • A Source Unknown

10 Miles

2020

5A

2035


Region 5

Kaweah River, Upper (from North Fork to Kaweah Lake)

River & Stream

55341071  /  18030007
  • Alkalinity as CaCO3
    • A Source Unknown

3.6 Miles

2020

5A

2033


Region 5

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

River & Stream

6543.000301,6543.000303,6544.000000  /  18040003
  • Indicator Bacteria
    • A Source Unknown

14 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2010

5A

2021
  • Permethrin
    • A Source Unknown

14 Miles

2010

5B

2019
  • Salinity
    • A Source Unknown

14 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

14 Miles

2014

5A

2027
  • pH
    • A Source Unknown

14 Miles

2010

5A

2023


Region 5

Kentucky Creek (Nevada County)

River & Stream

51731013  /  18020125
  • Iron
    • A Source Unknown

5.9 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

5.9 Miles

2014

5A

2027
  • pH
    • A Source Unknown

5.9 Miles

2014

5A

2027


Region 5

Keswick Reservoir (portion downstream from Spring Creek)

Lake & Reservoir

52440013  /  18020112
  • Cadmium
    • A Source Unknown

135 Acres

1990

5A

2019
  • Copper
    • A Source Unknown

135 Acres

1990

5A

2020
  • Zinc
    • A Source Unknown

135 Acres

1990

5A

2020


Region 5

Kings Creek (Shasta and Plumas County)

River & Stream

5518.440103,5518.440201,5518.440202  / 
  • Aluminum
    • A Source Unknown

11 Miles

2020

5A

2035


Region 5

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

River & Stream

55190000  /  18030012
  • Bifenthrin
    • A Source Unknown

36 Miles

2020

5A

2035
  • Boron
    • A Source Unknown

36 Miles

2020

5A

2033
  • Electrical Conductivity
    • A Source Unknown

36 Miles

2002

5A

2015
  • Molybdenum
    • A Source Unknown

36 Miles

2002

5A

2015
  • Oxygen, Dissolved
    • A Source Unknown

36 Miles

2010

5A

2035
  • Pyrethroids
    • A Source Unknown

36 Miles

2020

5A

2035
  • Toxaphene
    • A Source Unknown

36 Miles

2002

5A

2015
  • Toxicity
    • A Source Unknown

36 Miles

2020

5A

2035
  • pH
    • A Source Unknown

36 Miles

2014

5A

2027


Region 5

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

River & Stream

55180000  /  18030012
  • Alkalinity as CaCO3
    • A Source Unknown

76 Miles

2014

5A

2027
  • Copper
    • A Source Unknown

76 Miles

2014

5A

2035
  • Lead
    • A Source Unknown

76 Miles

2020

5A

2035
  • Paraquat
    • A Source Unknown

76 Miles

2014

5A

2035
  • Toxicity
    • A Source Unknown

76 Miles

2014

5A

2021


Region 5

Kings River, Main Fork

River & Stream

55232010  /  18030010
  • Alkalinity as CaCO3
    • A Source Unknown

18 Miles

2020

5A

2033


Region 5

Kings River, South Fork (Bubbs Creek to Grizzly Creek)

River & Stream

55234260  /  18030010
  • Alkalinity as CaCO3
    • A Source Unknown

12 Miles

2020

5A

2033


Region 5

Kings River, Upper North Fork

River & Stream

55234167  /  18030010
  • Alkalinity as CaCO3
    • A Source Unknown

33 Miles

2020

5A

2033


Region 5

Knights Landing Ridge Cut (Yolo County)

River & Stream

52021000  /  18020109
  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2010

5A

2021
  • Salinity
    • A Source Unknown

13 Miles

2010

5A

2021


Region 5

Laguna Creek (Sacramento County)

River & Stream

5519.110000  / 
  • Toxicity
    • A Source Unknown

30 Miles

2020

5A

2035


Region 5

Laguna Creek (tributary to Cosumnes River, Sacramento County)

River & Stream

53111000  /  18040005
  • Indicator Bacteria
    • A Source Unknown

24 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

24 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

24 Miles

2014

5A

2029


Region 5

Lake Clementine (Placer County)

Lake & Reservoir

5514.510001  / 
  • Mercury
    • A Source Unknown

186 Acres

2020

5A

2033


Region 5

Langworth Pipeline (Stanislaus County)

River & Stream

53530000  /  18040002
  • Oxygen, Dissolved
    • A Source Unknown

3 Miles

2014

5A

2027


Region 5

Lassen Creek (Modoc County)

River & Stream

52710021  /  18020001
  • Benthic Community Effects
    • A Source Unknown

15 Miles

2014

5A

2034
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

2027


Region 5

Levee Drain (Stanislaus County)

River & Stream

6535.500000  / 
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

0.9 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

0.9 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

0.9 Miles

2020

5A

2035


Region 5

Liberty Island (in Delta Waterways, northwestern portion)

Coastal & Bay Shoreline

5510.000000  / 
  • Chlorodibromomethane
    • A Source Unknown

3845 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

3845 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

3845 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

3845 Miles

2020

5A

2035


Region 5

Linda Creek

River & Stream

51921000  /  18020128
  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

2035


Region 5

Lindsey Slough (Solano County)

River & Stream

5510.000000  / 
  • Chlorpyrifos
    • A Source Unknown

6.3 Miles

2020

5A

2035
  • Pyrethroids
    • A Source Unknown

6.3 Miles

2020

5A

2035


Region 5

Little Backbone Creek, Lower

River & Stream

50620010  /  18020005
  • Acid Mine Drainage
    • A Source Unknown

0.95 Miles

1996

5A

2020
  • Cadmium
    • A Source Unknown

0.95 Miles

1992

5A

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

0.95 Miles

1992

5A

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

0.95 Miles

1992

5A

2020
    All resource extraction sources are abandoned mines.


Region 5

Little Chico Creek (Butte County)

River & Stream

52120012  /  18020105
  • pH
    • A Source Unknown

28 Miles

2020

5A

2033


Region 5

Little Cow Creek (downstream from Afterthought Mine)

River & Stream

5507.330101,5507.330103,5507.330203,5507.330301,5508.100002  /  18020118
  • Cadmium
    • A Source Unknown

40 Miles

1994

5A

2020
    Resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

40 Miles

1994

5A

2020
    Resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

40 Miles

1994

5A

2020
    Resource extraction sources are abandoned mines.


Region 5

Little Deer Creek

River & Stream

51720012  /  18020126
  • Mercury
    • A Source Unknown

4.1 Miles

2006

5A

2027
  • pH
    • A Source Unknown

4.1 Miles

2014

5A

2027


Region 5

Little Grizzly Creek

River & Stream

51854031  /  18020122
  • Copper
    • A Source Unknown

9.4 Miles

1996

5A

2021


Region 5

Little Panoche Creek

River & Stream

54241041  /  18040001
  • Toxicity
    • A Source Unknown

18 Miles

2014

5A

2027


Region 5

Littlejohns Creek

River & Stream

53140000  /  18040002
  • Chlorpyrifos
    • Agriculture

68 Miles

2010

5C

2026
  • Indicator Bacteria
    • A Source Unknown

68 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

68 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

68 Miles

2014

5A

2021


Region 5

Live Oak Slough

River & Stream

52030000  /  18020106
  • Diazinon
    • Agriculture

8.3 Miles

2010

5C

2026
  • Oxyfluorfen
    • A Source Unknown

8.3 Miles

2010

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

8.3 Miles

2010

5A

2021


Region 5

Lone Tree Creek

River & Stream

53140000  /  18040002
  • Ammonia
    • A Source Unknown

15 Miles

1996

5A

2020
  • BOD, Biochemical oxygen demand
    • A Source Unknown

15 Miles

1996

5A

2020
  • Chlorpyrifos
    • Agriculture

15 Miles

2010

5C

2026
  • Diuron
    • A Source Unknown

15 Miles

2010

5C

2018
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

15 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

2021


Region 5

Lone Willow Slough (Madera County)

River & Stream

54510000  /  18040001
  • Toxicity
    • A Source Unknown

19 Miles

2014

5A

2027


Region 5

Long Meadow Creek

River & Stream

55234281  /  18030010
  • Oxygen, Dissolved
    • A Source Unknown

1.1 Miles

2020

5A

2035
  • pH
    • A Source Unknown

1.1 Miles

2014

5A

2035


Region 5

Loon Lake

Lake & Reservoir

51444012  /  18020128
  • Mercury
    • A Source Unknown

988 Acres

2014

5A

2027


Region 5

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

River & Stream

6541.200000,6542.420000  /  18040001
  • Boron
    • A Source Unknown

32 Miles

2010

5A

2035
  • Indicator Bacteria
    • A Source Unknown

32 Miles

2014

5A

2021
  • Linuron
    • A Source Unknown

32 Miles

2014

5A

2035
  • Molybdenum
    • A Source Unknown

32 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

32 Miles

2010

5A

2023
  • Total Dissolved Solids
    • A Source Unknown

32 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

32 Miles

2014

5C

2024


Region 5

Los Banos Reservoir

Lake & Reservoir

6541.200000,6542.410208,6542.420000  /  18040014
  • Mercury
    • A Source Unknown

479 Acres

2014

5A

2027


Region 5

Los Gatos Creek (Fresno County)

River & Stream

55111011  /  18030012
  • Lead
    • A Source Unknown

49 Miles

2014

5A

2027
  • Selenium
    • A Source Unknown

49 Miles

2014

5A

2027


Region 5

Los Vaqueros Reservoir

Lake & Reservoir

54300030  /  18040003
  • Mercury
    • A Source Unknown

1037 Acres

2014

5A

2027


Region 5

Lower Blue Lake

Lake & Reservoir

51354020  /  18020116
  • Mercury
    • A Source Unknown

35 Acres

2014

5A

2027


Region 5

Main Drain (Kern County)

River & Stream

55870000  /  18030012
  • Boron
    • A Source Unknown

30 Miles

2014

5A

2027
  • Diuron
    • Agriculture

30 Miles

2014

5C

2018
  • Oxygen, Dissolved
    • A Source Unknown

30 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

30 Miles

2014

5A

2027


Region 5

Main Drainage Canal

River & Stream

52040000  /  18020105
  • Diazinon
    • Agriculture

9.2 Miles

2006

5C

2026
  • Oxygen, Dissolved
    • A Source Unknown

9.2 Miles

2010

5A

2021


Region 5

Manning Creek (Lake County)

River & Stream

5513.550304  / 
  • Aluminum
    • A Source Unknown

5 Miles

2020

5A

2033


Region 5

Manzanita Creek (Shasta County)

River & Stream

5507.120102,5507.120103,5507.120203  / 
  • Aluminum
    • A Source Unknown

15 Miles

2020

5A

2035
  • Boron
    • A Source Unknown

15 Miles

2020

5A

2033
  • Lead
    • A Source Unknown

15 Miles

2020

5A

2035
  • pH
    • A Source Unknown

15 Miles

2020

5A

2035


Region 5

Marsh Creek (Dunn Creek to Marsh Creek Reservoir)

River & Stream

54300023  /  18040003
  • Mercury
    • A Source Unknown

11 Miles

2006

5A

2015
    All resource extraction sources are abandoned mines.
  • Metals
    • A Source Unknown

11 Miles

1994

5A

2020
    All resource extraction sources are abandoned mines.
  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2020

5A

2035


Region 5

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

River & Stream

54400000  /  18040003
  • Bifenthrin
    • A Source Unknown

10 Miles

2010

5A

2035
  • Cyfluthrin
    • A Source Unknown

10 Miles

2014

5A

2035
  • Cyhalothrin, Lambda
    • A Source Unknown

10 Miles

2014

5A

2035
  • Indicator Bacteria
    • A Source Unknown

10 Miles

2014

5A

2023
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

10 Miles

1994

5B

2011
  • Oxygen, Dissolved
    • A Source Unknown

10 Miles

2010

5A

2035
  • Permethrin
    • A Source Unknown

10 Miles

2014

5A

2035
  • Pyrethroids
    • A Source Unknown

10 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

2027


Region 5

Marsh Creek Reservoir

Lake & Reservoir

54300023  /  18040003
  • Mercury
    • A Source Unknown

278 Acres

1988

5A

2015


Region 5

McClure Reservoir (Mariposa County)

Lake & Reservoir

53722000  /  18040008
  • Mercury
    • A Source Unknown

5605 Acres

2010

5A

2027


Region 5

McGaugh Slough (Lake County)

River & Stream

51355033  /  18020116
  • Aluminum
    • A Source Unknown

5.9 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

5.9 Miles

2014

5A

2035


Region 5

McSwain Lake

Lake & Reservoir

6537.100002  /  18040008
  • Mercury
    • A Source Unknown

296 Acres

2014

5A

2033


Region 5

Meadows Slough (Sacramento County)

Lake & Reservoir

5510.000000  /  18020109
  • Mercury
    • A Source Unknown

15 Acres

2014

5A

2027


Region 5

Mendota Pool

Wetland, Freshwater

55120000  /  18030012
  • Mercury
    • A Source Unknown

3045 Acres

2010

5A

2027
  • Selenium
    • A Source Unknown

3045 Acres

2002

5A

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


Region 5

Merced River (Mariposa and Madera Counties)

River & Stream

6537.500201, 6537.500202, 6537.500301, 6537.600101, 6537.600102, 6537.600103, 6537.600201, 6537.600301, 6537.600404  / 
  • Alkalinity as CaCO3
    • A Source Unknown

26 Miles

2020

5A

2033


Region 5

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

River & Stream

53550000  /  18040001
  • Group A Pesticides
    • A Source Unknown

50 Miles

1996

5A

2011
  • Mercury
    • A Source Unknown

50 Miles

2006

5A

2019
  • Oxygen, Dissolved
    • A Source Unknown

50 Miles

2010

5A

2035
  • Temperature, water
    • A Source Unknown

50 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

50 Miles

2014

5A

2023


Region 5

Merced River, Upper

River & Stream

6537.220000,6537.300401,6537.300403,6537.300404,6537.300501,6537.300503,6537.300601,6537.500301,6537.500304,6537.500402,(Total Count: 11)  /  18040008
  • Alkalinity as CaCO3
    • A Source Unknown

79 Miles

2020

5A

2033


Region 5

Merle Collins Lake

Lake & Reservoir

51713032  /  18020124
  • Mercury
    • A Source Unknown

1015 Acres

2014

5A

2027


Region 5

Middle Fork Cosumnes River (El Dorado County)

River & Stream

6532.230800,6532.240101,6532.240103,6532.240104,6532.240105,6532.240300,6532.240401,6532.240403,6532.240501,6532.240502,(Total Count: 11)  / 
  • Oxygen, Dissolved
    • A Source Unknown

44 Miles

2020

5A

2035


Region 5

Middle River (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Aluminum
    • A Source Unknown

16 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

16 Miles

2020

5A

2033


Region 5

Middle River (in Delta Waterways, southern portion)

River & Stream

54400000  /  18040003
  • Aluminum
    • A Source Unknown

9.7 Miles

2020

5A

2035
  • Low Dissolved Oxygen
    • A Source Unknown

9.7 Miles

2002

5A

2027


Region 5

Mile Long Pond (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • A Source Unknown

84 Acres

2010

5A

2027
  • Toxicity
    • A Source Unknown

84 Acres

2014

5A

2027


Region 5

Miles Creek (Merced County)

River & Stream

53580000  /  18040001
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

2027


Region 5

Mill Creek (Fresno County)

River & Stream

55240042  /  18030007
  • Toxicity
    • A Source Unknown

30 Miles

2014

5A

2027


Region 5

Mill Creek (Tehama County)

River & Stream

5504.200001,5504.200002,5509.420101,5509.420102,5509.420103,5509.420201,5509.420202,5509.420301,5509.420302,5509.420303  /  18020119
  • Chlorodibromomethane
    • A Source Unknown

57 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

57 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

57 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

57 Miles

2020

5A

2035


Region 5

Mill Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Ammonia (Unionized)
    • A Source Unknown

27 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

27 Miles

2014

5A

2027


Region 5

Millerton Lake

Lake & Reservoir

54012000  /  18040006
  • Mercury
    • A Source Unknown

4366 Acres

2010

5A

2021
  • pH
    • A Source Unknown

4366 Acres

2020

5A

2033


Region 5

Miner Slough (in Delta Waterways, northern portion)

River & Stream

5510.000000  / 
  • Chlorodibromomethane
    • A Source Unknown

8 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

8 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

8 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • A Source Unknown

8 Miles

2020

5A

2035


Region 5

Modesto Reservoir

Lake & Reservoir

53540011  /  18040002
  • Mercury
    • A Source Unknown

1964 Acres

2010

5A

2012


Region 5

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

River & Stream

6531.200000,6532.500000,6532.600901,6532.600902,6544.000000  /  18040005
  • Copper
    • A Source Unknown

114 Miles

1992

5A

2020
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

114 Miles

2010

5B

2011
  • Oxygen, Dissolved
    • A Source Unknown

114 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

114 Miles

2014

5A

2021
  • Zinc
    • A Source Unknown

114 Miles

1992

5A

2027


Region 5

Moon Lake

Lake & Reservoir

52653041  /  18020002
  • Mercury
    • A Source Unknown

2641 Acres

2014

5A

2027


Region 5

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

River & Stream

54400000  /  18040002
  • Indicator Bacteria
    • A Source Unknown

0.93 Miles

2014

5B

2008
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

0.93 Miles

2002

5A

2027


Region 5

Mormon Slough (Stockton Diverting Canal to Commerce Street)

River & Stream

6531.300000,6531.400000,6544.000000  /  18040002
  • Indicator Bacteria
    • A Source Unknown

5.3 Miles

2014

5A

2027


Region 5

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

River & Stream

6531.300000  /  18040002
  • Chlorpyrifos
    • Agriculture

13 Miles

2010

5C

2026
  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2010

5A

2035
  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

2027
  • pH
    • A Source Unknown

13 Miles

2010

5A

2023


Region 5

Morrison Creek

River & Stream

51911000  /  18020109
  • Aluminum
    • A Source Unknown

26 Miles

2020

5A

2035
  • Diazinon
    • Urban Runoff/Storm Sewers

26 Miles

1998

5B

2004
  • Pentachlorophenol (PCP)
    • A Source Unknown

26 Miles

2010

5A

2027
  • Pyrethroids
    • A Source Unknown

26 Miles

2010

5B

2019
  • Toxicity
    • A Source Unknown

26 Miles

2014

5A

2021


Region 5

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

River & Stream

6544.000000  /  18040005
  • Indicator Bacteria
    • A Source Unknown

1.9 Miles

2014

5B

2008
  • Mercury
    • Agricultural Return Flows
    • Atmospheric Deposition
    • Highway/Road/Bridge Runoff
    • Industrial Point Sources
    • Municipal Point Sources
    • Natural Sources
    • Resource Extraction
    • See TMDL documentation
    • Urban Runoff/Storm Sewers

1.9 Miles

2010

5B

2011
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

1.9 Miles

2006

5A

2027


Region 5

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

River & Stream

6543.000401,6543.000402,6544.000000,6575.000000  /  18040003
  • Chloride
    • A Source Unknown

11 Miles

2010

5A

2027
  • Salinity
    • A Source Unknown

11 Miles

2010

5A

2021


Region 5

Mud Creek (Butte County)

River & Stream

5504.200002,5509.150001  /  18020103
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

2021


Region 5

Mud Slough, North (downstream of San Luis Drain)

River & Stream

6541.200000  /  18040001
  • Boron
    • A Source Unknown

5.2 Miles

1996

5A

2019
  • Electrical Conductivity
    • A Source Unknown

5.2 Miles

1998

5A

2019
  • Indicator Bacteria
    • A Source Unknown

5.2 Miles

2014

5A

2035
  • Linuron
    • A Source Unknown

5.2 Miles

2020

5A

2035
  • Malathion
    • A Source Unknown

5.2 Miles

2010

5C

2035
  • Pesticides
    • A Source Unknown

5.2 Miles

1996

5A

2019
  • Selenium
    • A Source Unknown

5.2 Miles

1996

5B

2002
  • Toxicity
    • A Source Unknown

5.2 Miles

2014

5A

2027


Region 5

Mud Slough, North (upstream of San Luis Drain)

River & Stream

6541.200000  /  18040001
  • Boron
    • A Source Unknown

9.8 Miles

1996

5A

2019
  • Electrical Conductivity
    • A Source Unknown

9.8 Miles

1998

5A

2019
  • Indicator Bacteria
    • A Source Unknown

9.8 Miles

2014

5A

2021
  • Pesticides
    • A Source Unknown

9.8 Miles

1996

5A

2019
  • Toxicity
    • A Source Unknown

9.8 Miles

2014

5C

2024


Region 5

Mustang Creek (Merced County)

River & Stream

6535.600000  /  18040002
  • Chlorpyrifos
    • Agriculture

4.6 Miles

2010

5C

2026
  • Copper
    • A Source Unknown

4.6 Miles

2014

5A

2035
  • Diazinon
    • Agriculture

4.6 Miles

2010

5C

2026
  • Indicator Bacteria
    • A Source Unknown

4.6 Miles

2014

5A

2023
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

4.6 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

4.6 Miles

2010

5A

2027
  • Simazine
    • Agriculture

4.6 Miles

2010

5C

2018
  • Total Dissolved Solids
    • A Source Unknown

4.6 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

4.6 Miles

2014

5A

2027
  • cis-permethrin
    • A Source Unknown

4.6 Miles

2010

5C

2037


Region 5

Natoma, Lake

Lake & Reservoir

51921000  /  18020111
  • Mercury
    • A Source Unknown

485 Acres

2006

5A

2019


Region 5

Natomas Cross Canal (Sutter County)

River & Stream

5519.220000  /  18020109
  • Mercury
    • A Source Unknown

6.1 Miles

2010

5A

2027


Region 5

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

River & Stream

5519.210000  /  18020109
  • Mercury
    • A Source Unknown

3.6 Miles

2010

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3.6 Miles

1996

5A

2020
    The agricultural source is from aerial deposition.
  • Trash
    • A Source Unknown

3.6 Miles

2020

5A

2035


Region 5

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

River & Stream

5519.210000  /  18020111
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

12 Miles

1996

5A

2019


Region 5

New Bullards Bar Reservoir

Lake & Reservoir

51751011  /  18020125
  • Mercury
    • A Source Unknown

3864 Acres

2010

5A

2027


Region 5

New Hogan Lake (Calaveras County)

Lake & Reservoir

53310011  /  18040011
  • Mercury
    • A Source Unknown

3180 Acres

2010

5A

2027


Region 5

New Melones Reservoir

Lake & Reservoir

53421010  /  18040010
  • Mercury
    • A Source Unknown

1654 Acres

2010

5A

2027


Region 5

Newman Wasteway

River & Stream

6535.700000,6541.100000,6541.200000  /  18040001
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

8.2 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

8.2 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

8.2 Miles

2010

5A

2021
  • Salinity
    • A Source Unknown

8.2 Miles

2010

5A

2021


Region 5

Niagara Creek (Tuolumne County)

River & Stream

6534.410301,6534.410302  / 
  • Indicator Bacteria
    • A Source Unknown

6.8 Miles

2014

5A

2027


Region 5

North Canyon Creek (El Dorado County)

River & Stream

51432024  /  18020129
  • Indicator Bacteria
    • A Source Unknown

3.1 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

3.1 Miles

2014

5A

2027


Region 5

North Fork Cache Creek (Lake County)

River & Stream

5513.320202,5513.400102,5513.400103,5513.400106,5513.400203,5513.400302,5513.400402,5513.400403  / 
  • Aluminum
    • A Source Unknown

39 Miles

2020

5A

2035
  • Total Dissolved Solids
    • A Source Unknown

39 Miles

2020

5A

2035


Region 5

North Fork Cottonwood Creek (Shasta County)

River & Stream

5508.200000,5524.350103,5524.350201,5524.350202,5524.350302  / 
  • pH
    • A Source Unknown

21 Miles

2020

5A

2034


Region 5

ONeill Forebay

Lake & Reservoir

54231032  /  18040001
  • Mercury
    • A Source Unknown

2254 Acres

2010

5A

2012
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2254 Acres

2014

5A

2027


Region 5

Old River (San Joaquin River to Clifton Court Forebay; in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Aluminum
    • A Source Unknown
    • Agriculture

20 Miles

2020

5A

2035
  • Chlorodibromomethane
    • A Source Unknown

20 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

20 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

20 Miles

2020

5A

2035
  • Manganese
    • A Source Unknown

20 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

20 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

20 Miles

2020

5A

2033
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

20 Miles

2020

5A

2035


Region 5

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

River & Stream

6544.000000  /  18040003
  • Chlorodibromomethane
    • A Source Unknown

23 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

23 Miles

2020

5A

2035
  • Chlorpyrifos
    • Urban Runoff/Storm Sewers

23 Miles

2010

5B

2007
  • Dichlorobromomethane
    • A Source Unknown

23 Miles

2020

5A

2035
  • Electrical Conductivity
    • A Source Unknown

23 Miles

2010

5A

2023
  • Low Dissolved Oxygen
    • A Source Unknown
    • Hydromodification

23 Miles

2002

5A

2019
  • Oxygen, Dissolved
    • A Source Unknown

23 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

23 Miles

2020

5A

2035


Region 5

Oregon Creek (Yuba and Sierra Counties)

River & Stream

5517.410101,5517.410102,5517.410103,5517.410201  /  18020125
  • Copper
    • A Source Unknown

20 Miles

2014

5A

2027
  • Iron
    • A Source Unknown

20 Miles

2014

5A

2027


Region 5

Orestimba Creek (above Kilburn Road)

River & Stream

6541.100000  /  18040002
  • Azinphos-methyl (Guthion)
    • A Source Unknown

8.4 Miles

2002

5A

2008
  • Bifenthrin
    • A Source Unknown

8.4 Miles

2014

5A

2035
  • Chlorpyrifos
    • Agriculture

8.4 Miles

1998

5C

2026
  • Cyhalothrin, Lambda
    • A Source Unknown

8.4 Miles

2014

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

8.4 Miles

2002

5A

2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

8.4 Miles

2010

5A

2011
  • Diazinon
    • A Source Unknown

8.4 Miles

1998

5A

2035
  • Dieldrin
    • A Source Unknown

8.4 Miles

2010

5A

2011
  • Dimethoate
    • A Source Unknown

8.4 Miles

2010

5C

2035
  • Esfenvalerate/Fenvalerate
    • A Source Unknown

8.4 Miles

2014

5A

2035
  • Indicator Bacteria
    • A Source Unknown

8.4 Miles

2014

5A

2023
  • Linuron
    • A Source Unknown

8.4 Miles

2014

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

8.4 Miles

2014

5A

2027
  • Pyrethroids
    • A Source Unknown

8.4 Miles

2020

5A

2035
  • Selenium
    • A Source Unknown

8.4 Miles

2010

5A

2035
  • Specific Conductivity
    • A Source Unknown

8.4 Miles

2014

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

8.4 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

8.4 Miles

2014

5C

2024


Region 5

Orestimba Creek (below Kilburn Road)

River & Stream

54110000  /  18040002
  • Azinphos-methyl (Guthion)
    • A Source Unknown

2.7 Miles

2002

5A

2008
  • Bifenthrin
    • A Source Unknown

2.7 Miles

2010

5A

2035
  • Chlorpyrifos
    • Agriculture

2.7 Miles

1998

5C

2026
  • Chromium
    • A Source Unknown

2.7 Miles

2014

5A

2035
  • Cyhalothrin, Lambda
    • A Source Unknown

2.7 Miles

2014

5A

2035
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

2.7 Miles

2010

5A

2011
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

2.7 Miles

2002

5A

2011
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2.7 Miles

2010

5A

2011
  • Dieldrin
    • A Source Unknown

2.7 Miles

2010

5A

2021
  • Dimethoate
    • A Source Unknown

2.7 Miles

2010

5C

2035
  • Esfenvalerate/Fenvalerate
    • A Source Unknown

2.7 Miles

2014

5A

2035
  • Imidacloprid
    • A Source Unknown

2.7 Miles

2020

5A

2035
  • Indicator Bacteria
    • A Source Unknown

2.7 Miles

2014

5A

2023
  • Linuron
    • A Source Unknown

2.7 Miles

2014

5A

2035
  • Nickel
    • A Source Unknown

2.7 Miles

2010

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

2.7 Miles

2010

5A

2035
  • Pyrethroids
    • A Source Unknown

2.7 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

2.7 Miles

2014

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

2.7 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

2.7 Miles

2014

5C

2024


Region 5

Oroville Wildlife Area Fishing Pond (Butte County)

Lake & Reservoir

5515.400000  /  18020106
  • Toxicity
    • A Source Unknown

2.9 Acres

2014

5A

2021


Region 5

Oroville, Lake

Lake & Reservoir

51812000  /  18020124
  • Aluminum
    • A Source Unknown

15400 Acres

2024

5A

2035
  • Boron
    • A Source Unknown

15400 Acres

2020

5A

2033
  • Mercury
    • A Source Unknown

15400 Acres

2010

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

15400 Acres

2010

5A

2021


Region 5

Outside Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

2021


Region 5

Pacific Heights Pond, Lower (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Toxicity
    • A Source Unknown

10 Acres

2014

5A

2021


Region 5

Packwood Creek (Tulare County)

River & Stream

55810000  /  18030012
  • Toxicity
    • A Source Unknown

19 Miles

2014

5A

2021


Region 5

Panoche Creek (Silver Creek to Belmont Avenue)

River & Stream

7551.120000  /  18040001
  • Mercury
    • A Source Unknown

16 Miles

1992

5A

2020
    All resource extraction sources are abandoned mines.
  • Sedimentation/Siltation
    • A Source Unknown

16 Miles

1996

5A

2007
  • Selenium
    • A Source Unknown

16 Miles

1998

5A

2019
  • Toxicity
    • A Source Unknown

16 Miles

2014

5A

2027


Region 5

Paradise Cut (in Delta Waterways, southern portion)

River & Stream

6544.000000  /  18040003
  • Total Dissolved Solids
    • A Source Unknown

7.8 Miles

2020

5A

2035


Region 5

Pardee Reservoir

Lake & Reservoir

6531.300000,6532.400603,6532.600901  /  18040005
  • Mercury
    • A Source Unknown

1556 Acres

2010

5A

2021


Region 5

Pine Creek (Butte County)

River & Stream

50420070  /  18020103
  • Chlorpyrifos
    • Agriculture

11 Miles

2010

5C

2026
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2027


Region 5

Pine Creek (Butte and Tehama County)

River & Stream

5504.200002,5509.160101,5509.160102  / 
  • Bifenthrin
    • A Source Unknown

33 Miles

2020

5A

2035
  • Chlorpyrifos
    • A Source Unknown

33 Miles

2020

5A

2035
  • Metolachlor
    • A Source Unknown

33 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

33 Miles

2020

5A

2035
  • Pyrethroids
    • A Source Unknown

33 Miles

2020

5A

2035


Region 5

Pine Creek (Modoc County)

River & Stream

5526.520301,5526.520902  / 
  • Chlorodibromomethane
    • A Source Unknown

14 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

14 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

14 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

14 Miles

2020

5A

2035


Region 5

Pine Flat Reservoir

Lake & Reservoir

55232010  /  18030010
  • Alkalinity as CaCO3
    • A Source Unknown

5770 Acres

2014

5A

2035
  • Mercury
    • A Source Unknown

5770 Acres

2010

5A

2027


Region 5

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

River & Stream

52661080  /  18020003
  • Aluminum
    • A Source Unknown

123 Miles

2020

5A

2035
  • Iron
    • A Source Unknown

123 Miles

2020

5A

2035
  • Nutrients
    • A Source Unknown

123 Miles

1996

5A

2013
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

123 Miles

1996

5A

2013
  • Oxygen, Dissolved
    • A Source Unknown

123 Miles

2020

5A

2035


Region 5

Pit River, North Fork

River & Stream

5526.520101,5526.520102,5526.520103,5526.520105,5526.520106,5526.520108,5526.520303,5526.520902  /  18020002
  • Aluminum
    • A Source Unknown

22 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

22 Miles

2020

5A

2035
  • pH
    • A Source Unknown

22 Miles

2010

5A

2023


Region 5

Pit River, South Fork

River & Stream

52652080  /  18020002
  • Aluminum
    • A Source Unknown

34 Miles

2020

5A

2035
  • Boron
    • A Source Unknown

34 Miles

2020

5A

2033
  • Oxygen, Dissolved
    • A Source Unknown

34 Miles

2020

5A

2035
  • Salinity
    • A Source Unknown

34 Miles

2010

5A

2021
  • pH
    • A Source Unknown

34 Miles

2010

5A

2023


Region 5

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

River & Stream

53120000  /  18040005
  • Chlorpyrifos
    • Agriculture

13 Miles

2010

5C

2026
  • Diazinon
    • Agriculture

13 Miles

2010

5C

2026
  • Disulfoton
    • A Source Unknown

13 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2010

5A

2023
  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

2021


Region 5

Pleasant Grove Creek

River & Stream

5519.220000  /  18020111
  • Bifenthrin
    • A Source Unknown

20 Miles

2014

5B

2019
    This listing applies only to the portion of Pleasant Grove Creek upstream of Fiddyment Road.
  • Cyfluthrin
    • A Source Unknown

20 Miles

2014

5B

2035
  • Cypermethrin
    • A Source Unknown

20 Miles

2014

5B

2019
    This listing only applies to the portion of Pleasant Grove Creek upstream of Fiddyment Road.
  • Fipronil
    • A Source Unknown

20 Miles

2020

5A

2035
  • Fipronil Sulfone
    • A Source Unknown

20 Miles

2020

5A

2035
  • Imidacloprid
    • A Source Unknown

20 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

20 Miles

2010

5A

2021
    This listing is for Pleasant Grove Creek upstream of Fiddyment Road.
  • Permethrin
    • A Source Unknown

20 Miles

2014

5B

2035
  • Pyrethroids
    • A Source Unknown

20 Miles

2010

5B

2019
    This listing is for Pleasant Grove Creek upstream of Fiddyment Road.
  • Toxicity
    • A Source Unknown

20 Miles

2014

5A

2021


Region 5

Pleasant Grove Creek, South Branch

River & Stream

51922000  /  18020111
  • Bifenthrin
    • A Source Unknown

7.3 Miles

2014

5B

2019
  • Cyfluthrin
    • A Source Unknown

7.3 Miles

2014

5B

2019
  • Cypermethrin
    • A Source Unknown

7.3 Miles

2014

5B

2019
  • Deltamethrin
    • A Source Unknown

7.3 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

7.3 Miles

2010

5A

2021
  • Pyrethroids
    • A Source Unknown

7.3 Miles

2010

5B

2019
  • Toxicity
    • A Source Unknown

7.3 Miles

2014

5A

2021


Region 5

Pleasant Grove Creek, South Branch, unnamed southeastern trib (from east of Sierra View Country Club to confl with Pleasant Grove Cr, South Branch)

River & Stream

51922000  /  18020109
  • Bifenthrin
    • A Source Unknown

2.3 Miles

2014

5B

2019
  • Cyfluthrin
    • A Source Unknown

2.3 Miles

2014

5B

2019
  • Cypermethrin
    • A Source Unknown

2.3 Miles

2014

5B

2019
  • Toxicity
    • A Source Unknown

2.3 Miles

2014

5A

2027


Region 5

Pleasant Grove Creek, unnamed northern tributary (from Greywood Circle to confluence with Pleasant Grove Creek)

River & Stream

51922000  /  18020109
  • Bifenthrin
    • A Source Unknown

1.1 Miles

2014

5B

2019
  • Chlorpyrifos
    • A Source Unknown

1.1 Miles

2020

5A

2035
  • Cyfluthrin
    • A Source Unknown

1.1 Miles

2014

5B

2019
  • Cyhalothrin, Lambda
    • A Source Unknown

1.1 Miles

2014

5B

2035
  • Cypermethrin
    • A Source Unknown

1.1 Miles

2014

5B

2019
  • Deltamethrin
    • A Source Unknown

1.1 Miles

2014

5A

2035
  • Esfenvalerate/Fenvalerate
    • A Source Unknown

1.1 Miles

2014

5A

2035
  • Fipronil
    • A Source Unknown

1.1 Miles

2020

5A

2035
  • Fipronil Sulfone
    • A Source Unknown

1.1 Miles

2020

5A

2035
  • Imidacloprid
    • A Source Unknown

1.1 Miles

2020

5A

2035
  • Malathion
    • A Source Unknown

1.1 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

1.1 Miles

2020

5A

2035
  • Permethrin
    • A Source Unknown

1.1 Miles

2014

5B

2035
  • Pyrethroids
    • A Source Unknown

1.1 Miles

2020

5B

2035
  • Toxicity
    • A Source Unknown

1.1 Miles

2014

5A

2027


Region 5

Pleasant Grove Creek, unnamed northern tributary (from Mt Tamalpais Dr to confluence with Pleasant Grove Creek)

River & Stream

51922000  /  18020109
  • Bifenthrin
    • A Source Unknown

0.77 Miles

2014

5B

2019
  • Cyfluthrin
    • A Source Unknown

0.77 Miles

2014

5B

2019
  • Cyhalothrin, Lambda
    • A Source Unknown

0.77 Miles

2014

5B

2019
  • Cypermethrin
    • A Source Unknown

0.77 Miles

2014

5B

2019
  • Deltamethrin
    • A Source Unknown

0.77 Miles

2014

5A

2029
  • Esfenvalerate/Fenvalerate
    • A Source Unknown

0.77 Miles

2014

5B

2035
  • Fipronil
    • A Source Unknown

0.77 Miles

2020

5A

2035
  • Fipronil Sulfone
    • A Source Unknown

0.77 Miles

2020

5A

2035
  • Imidacloprid
    • A Source Unknown

0.77 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

0.77 Miles

2020

5A

2035
  • Permethrin
    • A Source Unknown

0.77 Miles

2014

5B

2019
  • Pyrethroids
    • A Source Unknown

0.77 Miles

2020

5B

2035
  • Toxicity
    • A Source Unknown

0.77 Miles

2014

5A

2027


Region 5

Poorman Creek (Nevada County)

River & Stream

51732010  /  18020125
  • Copper
    • A Source Unknown

14 Miles

2014

5A

2027


Region 5

Potato Slough, Little (San Joaquin County)

River & Stream

6544.000000  /  18040003
  • Toxicity
    • A Source Unknown

4.1 Miles

2014

5A

2027


Region 5

Powell Slough (Colusa County)

River & Stream

5520.100002,5520.210000  / 
  • Aluminum
    • A Source Unknown

4.5 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

4.5 Miles

2020

5A

2035


Region 5

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

River & Stream

5510.000000,5511.100000,5511.200000  /  18020109
  • Mercury
    • A Source Unknown
    • Resource Extraction

25 Miles

2002

5A

2017
    All resource extraction sources are abandoned mines.


Region 5

Ramona Lake

Lake & Reservoir

54110000  /  18040002
  • Boron
    • A Source Unknown

17 Acres

2020

5A

2033
  • Linuron
    • A Source Unknown

17 Acres

2014

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

17 Acres

2014

5A

2027
  • Specific Conductivity
    • A Source Unknown

17 Acres

2014

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

17 Acres

2014

5A

2027
  • Toxicity
    • A Source Unknown

17 Acres

2014

5C

2024
  • pH
    • A Source Unknown

17 Acres

2014

5A

2027


Region 5

Ramona Lake (Fresno County)

Lake & Reservoir

54040018  /  18040006
  • Indicator Bacteria
    • A Source Unknown

28 Acres

2014

5A

2021
  • Salinity
    • A Source Unknown

28 Acres

2010

5A

2021
  • Toxicity
    • A Source Unknown

28 Acres

2014

5A

2021


Region 5

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

River & Stream

53260050  /  18040012
  • Indicator Bacteria
    • A Source Unknown

0.9 Miles

2014

5A

2021


Region 5

Rice Creek, North Arm

River & Stream

5518.440101,5518.440103  /  18020121
  • Selenium
    • A Source Unknown

11 Miles

2020

5A

2035
  • Sulfates
    • A Source Unknown

11 Miles

2014

5A

2035
  • Total Dissolved Solids
    • A Source Unknown

11 Miles

2020

5A

2035


Region 5

Robinsons Riffle Pond (Butte County)

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • A Source Unknown

7.9 Acres

2010

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

7.9 Acres

2010

5A

2021


Region 5

Rock Creek (Nevada County)

River & Stream

51732033  /  18020125
  • Oxygen, Dissolved
    • A Source Unknown

9.2 Miles

2014

5A

2035
  • pH
    • A Source Unknown

9.2 Miles

2014

5A

2027


Region 5

Rock Creek (Placer County)

River & Stream

51422011  /  18020127
  • Indicator Bacteria
    • A Source Unknown

4.1 Miles

2014

5A

2027


Region 5

Rock Creek (Stanislaus County)

River & Stream

6531.400000,6570.100006,6570.200003  / 
  • Oxygen, Dissolved
    • A Source Unknown

21 Miles

2020

5A

2035


Region 5

Rock Slough (in Delta Waterways, western and central portions)

River & Stream

6544.000000  / 
  • pH
    • A Source Unknown

4.5 Miles

2020

5A

2035


Region 5

Rodman Slough (Lake County)

River & Stream

5513.520000, 5513.540402  / 
  • Oxygen, Dissolved
    • A Source Unknown

1.4 Miles

2020

5A

2035
  • pH
    • A Source Unknown

1.4 Miles

2020

5A

2035


Region 5

Rollins Reservoir

Lake & Reservoir

51634033  /  18020126
  • Mercury
    • A Source Unknown

774 Acres

2002

5A

2016


Region 5

Rose Creek (Tuolumne County)

River & Stream

6534.220101,6534.220105  /  18040010
  • Indicator Bacteria
    • A Source Unknown

17 Miles

2014

5A

2027


Region 5

Rush Creek (Modoc County)

River & Stream

52664031  /  18020002
  • pH
    • A Source Unknown

9.6 Miles

2010

5A

2021


Region 5

Sacramento City Marina (part of Delta Waterways (northern portion))

Estuary

51911000  /  18020109
  • Oxygen, Dissolved
    • A Source Unknown

20 Acres

2014

5A

2035


Region 5

Sacramento Deep Water Ship Channel (in Delta Waterways, northern portion)

River & Stream

5510.000000  / 
  • Chlorodibromomethane
    • A Source Unknown

27 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

27 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

27 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

27 Miles

2020

5A

2035


Region 5

Sacramento River (Keswick Dam to Cottonwood Creek)

River & Stream

52440014  /  18020102
  • Oxygen, Dissolved
    • A Source Unknown

15 Miles

2014

5A

2035
  • Temperature, water
    • A Source Unknown

15 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

15 Miles

2014

5A

2019


Region 5

Sacramento River ( Cottonwood Creek to Red Bluff)

River & Stream

5504.200001,5504.200002,5508.100001,5508.100002  /  18020103
  • Mercury
    • A Source Unknown

31 Miles

1800

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

31 Miles

2014

5A

2035
  • Temperature, water
    • A Source Unknown

31 Miles

2014

5A

2033
  • Toxicity
    • A Source Unknown

31 Miles

2014

5A

2027


Region 5

Sacramento River ( Red Bluff to Knights Landing)

River & Stream

5504.200001,5504.200002,5520.100001,5520.100002,5520.400001,5520.400002  /  18020104
  • Aluminum
    • A Source Unknown

149 Miles

2020

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

149 Miles

2010

5A

2027
  • Dieldrin
    • A Source Unknown

149 Miles

2010

5A

2027
  • Mercury
    • A Source Unknown

149 Miles

1992

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

149 Miles

2014

5A

2035
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

149 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

149 Miles

2014

5A

2027


Region 5

Sacramento River (Knights Landing to the Delta)

River & Stream

51000000  /  18020109
  • Aluminum
    • A Source Unknown

16 Miles

2020

5A

2035
  • Chlordane
    • A Source Unknown

16 Miles

2010

5A

2021
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

16 Miles

2010

5A

2027
  • Dieldrin
    • A Source Unknown

16 Miles

2010

5A

2022
  • Mercury
    • A Source Unknown

16 Miles

2002

5A

2012
  • Oxygen, Dissolved
    • A Source Unknown

16 Miles

2014

5A

2035
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

16 Miles

2010

5A

2021
  • Temperature, water
    • A Source Unknown

16 Miles

2014

5A

2033
  • Toxicity
    • A Source Unknown

16 Miles

2014

5A

2027


Region 5

Sacramento River (Sacramento City Marina to Suisun Marsh Wetlands)

Coastal & Bay Shoreline

5510.000000  / 
  • Aluminum
    • A Source Unknown

57 Miles

2020

5A

2035
  • Fipronil
    • A Source Unknown

57 Miles

2020

5A

2035
  • Permethrin
    • A Source Unknown

57 Miles

2020

5A

2035
  • Pyrethroids
    • A Source Unknown

57 Miles

2020

5A

2035
  • Temperature, water
    • A Source Unknown

57 Miles

2020

5A

2034
  • Toxicity
    • A Source Unknown

57 Miles

2020

5A

2035


Region 5

Sacramento Slough

River & Stream

51922000  /  18020106
  • Aluminum
    • A Source Unknown

1.7 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

1.7 Miles

1998

5A

2020
  • Oxygen, Dissolved
    • A Source Unknown

1.7 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

1.7 Miles

2014

5A

2023


Region 5

Salado Creek (Stanislaus County)

River & Stream

54210031  /  18040014
  • Indicator Bacteria
    • A Source Unknown

9.4 Miles

2014

5A

2021
  • Salinity
    • A Source Unknown

9.4 Miles

2010

5A

2021


Region 5

Salt Slough (Mud Slough to Sand Dam, Merced County)

River & Stream

54120000  /  18040001
  • Chlorpyrifos
    • A Source Unknown

4.5 Miles

2014

5C

2026
  • Diuron
    • A Source Unknown

4.5 Miles

2020

5C

2035
  • Linuron
    • A Source Unknown

4.5 Miles

2014

5A

2035
  • Malathion
    • A Source Unknown

4.5 Miles

2014

5A

2035
  • Specific Conductivity
    • A Source Unknown

4.5 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

4.5 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

4.5 Miles

2014

5C

2024


Region 5

Salt Slough (upstream from confluence with San Joaquin River)

River & Stream

6541.200000  /  18040001
  • Chlorodibromomethane
    • A Source Unknown

11 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

11 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

11 Miles

2020

5A

2035
  • Electrical Conductivity
    • A Source Unknown

11 Miles

1998

5A

2019
  • Linuron
    • A Source Unknown

11 Miles

2014

5A

2035
  • Mercury
    • A Source Unknown

11 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2010

5A

2027
  • Prometryn
    • A Source Unknown

11 Miles

2010

5A

2021
  • Specific Conductivity
    • A Source Unknown

11 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

11 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • A Source Unknown

11 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

11 Miles

2014

5C

2024


Region 5

San Carlos Creek (downstream of New Idria Mine)

River & Stream

55911085  /  18040014
  • Mercury
    • A Source Unknown

5.1 Miles

1998

5A

2020
    All resource extraction sources are abandoned mines.


Region 5

San Joaquin River ( Mendota Pool to Bear Creek)

River & Stream

54110000  /  18040001
  • Aluminum
    • A Source Unknown

88 Miles

2020

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

88 Miles

2002

5A

2027
  • Group A Pesticides
    • A Source Unknown

88 Miles

2002

5A

2011
  • Toxicity
    • A Source Unknown

88 Miles

2014

5A

2027


Region 5

San Joaquin River (Bear Creek to Mud Slough)

River & Stream

54120000  /  18040001
  • Aluminum
    • A Source Unknown

14 Miles

2020

5A

2035
  • Arsenic
    • A Source Unknown

14 Miles

2010

5A

2027
  • Boron
    • A Source Unknown

14 Miles

2006

5A

2035
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

14 Miles

2006

5A

2027
  • Electrical Conductivity
    • A Source Unknown

14 Miles

2006

5A

2027
  • Group A Pesticides
    • A Source Unknown

14 Miles

2006

5A

2011
  • Indicator Bacteria
    • A Source Unknown

14 Miles

2014

5A

2035
  • Linuron
    • A Source Unknown

14 Miles

2014

5A

2035
  • Mercury
    • A Source Unknown

14 Miles

2006

5A

2012
  • Temperature, water
    • A Source Unknown

14 Miles

2020

5A

2034
  • Total Dissolved Solids
    • A Source Unknown

14 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

14 Miles

2014

5C

2024


Region 5

San Joaquin River ( Mud Slough to Merced River)

River & Stream

54110000  /  18040001
  • Boron
    • A Source Unknown

3 Miles

1996

5A

2027
  • Chlorpyrifos
    • A Source Unknown

3 Miles

2006

5B

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3 Miles

2006

5A

2027
  • Diazinon
    • A Source Unknown

3 Miles

2006

5B

2007
  • Electrical Conductivity
    • A Source Unknown

3 Miles

2006

5A

2027
  • Group A Pesticides
    • A Source Unknown

3 Miles

2006

5A

2011
  • Indicator Bacteria
    • A Source Unknown

3 Miles

2014

5A

2027
  • Mercury
    • A Source Unknown

3 Miles

2006

5A

2012
  • Selenium
    • A Source Unknown

3 Miles

2006

5B

2002
  • Temperature, water
    • A Source Unknown

3 Miles

2020

5A

2034
  • Toxicity
    • A Source Unknown

3 Miles

2014

5A

2027


Region 5

San Joaquin River ( Merced River to Tuolumne River)

River & Stream

54110000  /  18040001
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

29 Miles

2010

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

29 Miles

2002

5A

2027
  • Electrical Conductivity
    • A Source Unknown

29 Miles

1998

5A

2027
  • Group A Pesticides
    • A Source Unknown

29 Miles

2002

5A

2011
  • Linuron
    • A Source Unknown

29 Miles

2014

5A

2035
  • Mercury
    • A Source Unknown

29 Miles

2006

5A

2012
  • Specific Conductivity
    • A Source Unknown

29 Miles

2014

5A

2027
  • Temperature, water
    • A Source Unknown

29 Miles

2010

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

29 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

29 Miles

2014

5A

2019
  • alpha.-BHC (Benzenehexachloride or alpha-HCH)
    • A Source Unknown

29 Miles

2010

5A

2027


Region 5

San Joaquin River (Friant Dam to Mendota Pool)

River & Stream

54510000  /  18040006
  • Aluminum
    • A Source Unknown

70 Miles

2020

5A

2035
  • Arsenic
    • A Source Unknown

70 Miles

2020

5A

2033
  • Boron
    • A Source Unknown

70 Miles

2020

5A

2033
  • Invasive Species
    • A Source Unknown

70 Miles

2006

5A

2027
  • Temperature, water
    • A Source Unknown

70 Miles

2014

5A

2034
  • pH
    • A Source Unknown

70 Miles

2014

5A

2027


Region 5

San Joaquin River (Stanislaus River to Delta Boundary)

River & Stream

54400000  /  18040002
  • Aluminum
    • A Source Unknown

3 Miles

2020

5A

2035
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

3 Miles

2010

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3 Miles

2006

5A

2027
  • Diuron
    • A Source Unknown

3 Miles

2010

5A

2027
  • Group A Pesticides
    • A Source Unknown

3 Miles

2006

5A

2011
  • Imidacloprid
    • A Source Unknown

3 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

3 Miles

2006

5A

2012
  • Oxygen, Dissolved
    • A Source Unknown

3 Miles

2010

5A

2035
  • Temperature, water
    • A Source Unknown

3 Miles

2010

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

3 Miles

2020

5A

2035
  • Toxaphene
    • A Source Unknown

3 Miles

2006

5A

2019
  • Toxicity
    • A Source Unknown

3 Miles

2014

5A

2019


Region 5

San Joaquin River (Tuolumne River to Stanislaus River)

River & Stream

6535.300000,6535.500000,6541.100000  /  18040002
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

8.9 Miles

2006

5A

2027
  • Electrical Conductivity
    • A Source Unknown

8.9 Miles

1998

5A

2027
  • Group A Pesticides
    • A Source Unknown

8.9 Miles

1994

5A

2011
  • Mercury
    • A Source Unknown

8.9 Miles

2006

5A

2012
  • Temperature, water
    • A Source Unknown

8.9 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

8.9 Miles

2014

5A

2019


Region 5

San Joaquin River (in Delta Waterways, southern portion)

River & Stream

6541.100000,6544.000000  / 
  • Aluminum
    • A Source Unknown

31 Miles

2020

5A

2035
  • Temperature, water
    • A Source Unknown

31 Miles

2020

5A

2034


Region 5

San Joaquin River from Delta Waterways to Stockton Ship Channel

River & Stream

5510.000000,6544.000000  / 
  • Chloride
    • A Source Unknown

37 Miles

2020

5A

2035
  • Imidacloprid
    • A Source Unknown

37 Miles

2020

5A

2035
  • Temperature, water
    • A Source Unknown

37 Miles

2020

5A

2034
  • Toxicity
    • A Source Unknown

37 Miles

2020

5A

2035


Region 5

San Luis Canal (Merced County)

River & Stream

6541.200000  / 
  • Boron
    • A Source Unknown

5.7 Miles

2020

5A

2033


Region 5

San Luis Reservoir

Lake & Reservoir

54232010  /  18040014
  • Boron
    • A Source Unknown

13007 Acres

2020

5A

2033
  • Chlordane
    • A Source Unknown

13007 Acres

2014

5A

2027
  • Lead
    • A Source Unknown

13007 Acres

2020

5A

2035
  • Mercury
    • A Source Unknown

13007 Acres

2010

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

13007 Acres

2014

5A

2027
  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • A Source Unknown

13007 Acres

2014

5A

2027
  • pH
    • A Source Unknown

13007 Acres

2020

5A

2035


Region 5

Sand Creek (Colusa County)

River & Stream

52021000  /  18020104
  • Oxygen, Dissolved
    • A Source Unknown

20 Miles

2010

5A

2027


Region 5

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

River & Stream

6543.000102,6544.000000  /  18040003
  • Chlorpyrifos
    • Agriculture

12 Miles

2010

5C

2026
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

12 Miles

2010

5A

2021
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

12 Miles

2010

5A

2021
  • Diazinon
    • Agriculture

12 Miles

2010

5C

2026
  • Dieldrin
    • A Source Unknown

12 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2010

5A

2035
  • Salinity
    • A Source Unknown

12 Miles

2010

5A

2021
  • Specific Conductivity
    • A Source Unknown

12 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

12 Miles

2014

5A

2021


Region 5

Santa Fe Canal

River & Stream

54120000  /  18040001
  • Boron
    • A Source Unknown

17 Miles

2020

5A

2033


Region 5

Scotchman Creek (Nevada County)

River & Stream

5517.320202  /  18020125
  • Copper
    • A Source Unknown

3.9 Miles

2014

5A

2027
  • Iron
    • A Source Unknown

3.9 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

3.9 Miles

2014

5A

2035
  • pH
    • A Source Unknown

3.9 Miles

2014

5A

2027


Region 5

Scotts Flat Reservoir

Lake & Reservoir

51720011  /  18020125
  • Mercury
    • A Source Unknown

660 Acres

2002

5A

2016


Region 5

Shady Creek (Nevada County)

River & Stream

51731012  /  18020125
  • Copper
    • A Source Unknown

11 Miles

2014

5A

2027
  • Iron
    • A Source Unknown

11 Miles

2014

5A

2027


Region 5

Shag Slough (in Delta Waterways, northwestern portion)

River & Stream

51000000  /  18020109
  • Chlorodibromomethane
    • A Source Unknown

7.1 Miles

2020

5A

2035
  • Chloroform
    • A Source Unknown

7.1 Miles

2020

5A

2035
  • Dichlorobromomethane
    • A Source Unknown

7.1 Miles

2020

5A

2035
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

7.1 Miles

2020

5A

2035


Region 5

Shasta Lake

Lake & Reservoir

50610000  /  18020005
  • Mercury
    • A Source Unknown

27335 Acres

2010

5A

2027


Region 5

Shasta Lake (area where West Squaw Creek enters)

Lake & Reservoir

50620010  /  18020005
  • Cadmium
    • A Source Unknown

20 Acres

1990

5A

2020
  • Copper
    • A Source Unknown

20 Acres

1990

5A

2020
  • Zinc
    • A Source Unknown

20 Acres

1990

5A

2020


Region 5

Simmerly Slough (Yuba County)

River & Stream

51540000  /  18020106
  • Toxicity
    • A Source Unknown

5.5 Miles

2014

5A

2021


Region 5

Siskiyou, Lake

Lake & Reservoir

52522022  /  18020005
  • Mercury
    • A Source Unknown

424 Acres

2014

5A

2027


Region 5

Slab Creek Reservoir (El Dorado County)

Lake & Reservoir

51432013  /  18020129
  • Mercury
    • A Source Unknown

242 Acres

2010

5A

2027


Region 5

Sly Creek Reservoir (Butte County)

Lake & Reservoir

5518.230001  / 
  • Mercury
    • A Source Unknown

618 Acres

2020

5A

2033


Region 5

Smith Canal (in Delta Waterways, eastern portion)

River & Stream

6544.000000  /  18040003
  • Indicator Bacteria
    • A Source Unknown

2.4 Miles

2014

5B

2008
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

2.4 Miles

2002

5A

2015


Region 5

Snake River (Butte and Sutter Counties)

River & Stream

52030000  /  18020106
  • Chlorpyrifos
    • Agriculture

26 Miles

2014

5C

2026
  • Indicator Bacteria
    • A Source Unknown

26 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

26 Miles

2014

5A

2027


Region 5

Solano, Lake

Lake & Reservoir

51120000  /  18020109
  • Mercury
    • A Source Unknown

15 Acres

2010

5A

2027


Region 5

Spanish Creek (Plumas County)

River & Stream

51851011  /  18020122
  • Indicator Bacteria
    • A Source Unknown

29 Miles

2014

5A

2027


Region 5

Spaulding, Lake

Lake & Reservoir

51734030  /  18020125
  • Mercury
    • A Source Unknown

694 Acres

2014

5A

2033


Region 5

Spring Creek (Colusa County)

River & Stream

5520.210000,5561.200002  /  18020104
  • Aldicarb
    • A Source Unknown

14 Miles

2010

5A

2021
  • Chlorpyrifos
    • Agriculture

14 Miles

2010

5C

2026
  • Diazinon
    • Agriculture

14 Miles

2010

5C

2026
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2010

5A

2027
  • Salinity
    • A Source Unknown

14 Miles

2010

5A

2027
  • Toxicity
    • A Source Unknown

14 Miles

2014

5A

2027


Region 5

Spring Creek (Nevada County)

River & Stream

51732031  /  18020125
  • Copper
    • A Source Unknown

6.2 Miles

2014

5A

2027
  • Iron
    • A Source Unknown

6.2 Miles

2014

5A

2027


Region 5

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

River & Stream

52440010  /  18020112
  • Acid Mine Drainage
    • A Source Unknown

2.6 Miles

1996

5A

2027
    All resource extraction sources are abandoned mines.
  • Cadmium
    • A Source Unknown

2.6 Miles

1996

5A

2027
    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

2.6 Miles

1996

5A

2027
    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

2.6 Miles

1996

5A

2027
    All resource extraction sources are abandoned mines.


Region 5

Squirrel Creek (Nevada County)

River & Stream

51720023  /  18020125
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

2027


Region 5

Stanislaus River, Lower

River & Stream

53530000  /  18040002
  • Aluminum
    • A Source Unknown

59 Miles

2020

5A

2035
  • Group A Pesticides
    • A Source Unknown

59 Miles

1998

5A

2011
  • Mercury
    • A Source Unknown

59 Miles

2002

5A

2020
  • Temperature, water
    • A Source Unknown

59 Miles

2010

5A

2033
  • Toxicity
    • A Source Unknown

59 Miles

2014

5A

2027


Region 5

Stanton Creek (Lake County)

River & Stream

5513.400104,5513.400203  / 
  • pH
    • A Source Unknown

4.9 Miles

2020

5A

2033


Region 5

Staten Island Drain (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

2 Miles

2020

5A

2035


Region 5

Stone Corral Creek

River & Stream

5520.210000,5561.300302  /  18020104
  • Oxygen, Dissolved
    • A Source Unknown

47 Miles

2010

5A

2027


Region 5

Stony Creek

River & Stream

52021000  /  18020115
  • Aluminum
    • A Source Unknown

42 Miles

2020

5A

2035
  • Chlorpyrifos
    • Agriculture

42 Miles

2010

5C

2026
  • Toxicity
    • A Source Unknown

42 Miles

2014

5A

2027
  • pH
    • A Source Unknown

42 Miles

2010

5A

2023


Region 5

Stony Gorge Reservoir

Lake & Reservoir

52222000  /  18020115
  • Mercury
    • A Source Unknown

1411 Acres

2010

5A

2027


Region 5

Strong Ranch Slough

River & Stream

51921000  /  18020111
  • Pyrethroids
    • A Source Unknown

6.4 Miles

2010

5B

2019
  • Toxicity
    • A Source Unknown

6.4 Miles

2014

5A

2021


Region 5

Success Lake

Lake & Reservoir

55512058  /  18030012
  • Mercury
    • A Source Unknown

2486 Acres

2014

5A

2033
  • pH
    • A Source Unknown

2486 Acres

2010

5A

2027


Region 5

Sucker Run (Butte County)

River & Stream

51822023  /  18020123
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2027


Region 5

Sugar Cut (in Delta Waterways, southern portion)

River & Stream

6544.000000  / 
  • Total Dissolved Solids
    • A Source Unknown

1.3 Miles

2020

5A

2035


Region 5

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

River & Stream

53631022  /  18040009
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

2027


Region 5

Sulphur Creek (Colusa County)

River & Stream

51320024  /  18020116
  • Mercury
    • A Source Unknown

14 Miles

1996

5A

2009
    All resource extraction sources are abandoned mines.


Region 5

Sutter Bypass

River & Stream

5511.200000,5519.220000,5520.100001,5520.300000  /  18020109
  • Aluminum
    • A Source Unknown

19828 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

19828 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

19828 Miles

2020

5A

2035


Region 5

Sweany Creek (Solano County)

River & Stream

5511.100000  /  18020109
  • Toxicity
    • A Source Unknown

14 Miles

2014

5A

2027


Region 5

Sycamore Slough (Yolo County)

River & Stream

52010000  /  18020104
  • Oxygen, Dissolved
    • A Source Unknown

17 Miles

2010

5A

2027


Region 5

Sycamore Slough (in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040003
  • Aluminum
    • A Source Unknown

4.8 Miles

2020

5A

2035


Region 5

TID Lateral 7 (Merced County)

River & Stream

6535.500000  / 
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

2.3 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

2.3 Miles

2020

5A

2033


Region 5

TID Lower Stevinson Canal (Merced County)

River & Stream

6535.500000  / 
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

3 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

3 Miles

2020

5A

2033


Region 5

Temple Creek

River & Stream

53140000  /  18040002
  • Ammonia
    • A Source Unknown

10 Miles

1996

5A

2027
  • Chlorpyrifos
    • A Source Unknown

10 Miles

2014

5C

2026
  • Diuron
    • A Source Unknown

10 Miles

2020

5A

2035
  • Indicator Bacteria
    • A Source Unknown

10 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

10 Miles

2020

5A

2035
  • Simazine
    • A Source Unknown

10 Miles

2014

5A

2035


Region 5

Ten Mile Creek (Kings River, South Fork)

River & Stream

55234280  /  18030010
  • Oxygen, Dissolved
    • A Source Unknown

9.3 Miles

2010

5A

2035


Region 5

Thermalito Afterbay

Lake & Reservoir

51540000  /  18020106
  • Mercury
    • A Source Unknown

3863 Acres

2010

5A

2021
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3863 Acres

2010

5A

2021


Region 5

Thermalito Forebay

Lake & Reservoir

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

538 Acres

2010

5A

2027


Region 5

Toe Drain (in Delta Waterways, northwestern portion)

River & Stream

51000000  /  18020109
  • Aluminum
    • A Source Unknown

22 Miles

2020

5A

2035
  • Boron
    • A Source Unknown

22 Miles

2020

5A

2033
  • Chloride
    • A Source Unknown

22 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

22 Miles

2020

5A

2035


Region 5

Tom Paine Slough (in Delta Waterways, southern portion)

River & Stream

54400000  /  18040003
  • Aluminum
    • A Source Unknown

14 Miles

2020

5A

2035
  • Chloride
    • A Source Unknown

14 Miles

2010

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2010

5A

2027
  • Salinity
    • A Source Unknown

14 Miles

2010

5A

2027


Region 5

Town Creek

River & Stream

50620010  /  18020005
  • Cadmium
    • A Source Unknown

0.98 Miles

1996

5A

2027
    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

0.98 Miles

1996

5A

2027
    All resource extraction sources are abandoned mines.
  • Lead
    • A Source Unknown

0.98 Miles

1996

5A

2027
    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

0.98 Miles

1996

5A

2027


Region 5

Tule Canal (Yolo County)

River & Stream

51120000  /  18020109
  • Boron
    • A Source Unknown

11 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

11 Miles

2014

5A

2021
  • Salinity
    • A Source Unknown

11 Miles

2010

5A

2021


Region 5

Tule River, Lower

River & Stream

7555.120603,7555.130000,7558.100000,7558.200000,7558.300000  /  18030012
  • Bifenthrin
    • A Source Unknown

76 Miles

2014

5A

2035
  • Toxicity
    • A Source Unknown

76 Miles

2014

5A

2027
  • pH
    • A Source Unknown

76 Miles

2014

5A

2027


Region 5

Tulloch Reservoir

Lake & Reservoir

53422063  /  18040010
  • Mercury
    • A Source Unknown

992 Acres

2010

5A

2027


Region 5

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

River & Stream

53550000  /  18040002
  • Aluminum
    • A Source Unknown

60 Miles

2020

5A

2035
  • Group A Pesticides
    • A Source Unknown

60 Miles

2006

5A

2011
  • Mercury
    • A Source Unknown

60 Miles

2010

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

60 Miles

2020

5A

2035
  • Temperature, water
    • A Source Unknown

60 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

60 Miles

2014

5A

2022


Region 5

Tuolumne River, Upper (Don Pedro Res to Hetch Hetchy Reservoir)

River & Stream

6536.310301,6536.400402,6536.400403,6536.400501,6536.400504,6536.600902,6536.600903,6536.600904,6536.800201  /  18040009
  • Aluminum
    • A Source Unknown

39 Miles

2020

5A

2033
  • Arsenic
    • A Source Unknown

39 Miles

2020

5A

2033
  • Iron
    • A Source Unknown

39 Miles

2020

5A

2035


Region 5

Turlock Lake

Lake & Reservoir

53560000  /  18040002
  • Mercury
    • A Source Unknown

3180 Acres

2010

5A

2027


Region 5

Turnback Creek (Tuolumne County)

River & Stream

53631030  /  18040009
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2014

5A

2027


Region 5

Turner Cut (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Oxygen, Dissolved
    • A Source Unknown

2.9 Miles

2020

5A

2035


Region 5

Turner Slough (Merced County)

River & Stream

6535.700000  /  18040001
  • Indicator Bacteria
    • Agriculture-animal

2.9 Miles

2014

5A

2027
  • Linuron
    • A Source Unknown

2.9 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

2.9 Miles

2010

5A

2035
  • Specific Conductivity
    • A Source Unknown

2.9 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

2.9 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

2.9 Miles

2014

5A

2027


Region 5

Turner Slough (drains into San Joaquin River (Bear Creek to Mud Slough), Merced County)

River & Stream

6535.700000,6541.200000  /  18040001
  • Indicator Bacteria
    • A Source Unknown

1.3 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

1.3 Miles

2014

5A

2027
  • Specific Conductivity
    • A Source Unknown

1.3 Miles

2014

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

1.3 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

1.3 Miles

2014

5A

2027


Region 5

Twain Harte Creek (Tuolumne County)

River & Stream

53631010  /  18040009
  • Indicator Bacteria
    • A Source Unknown
    • Grazing-Related Sources
    • Natural Sources

3.8 Miles

2014

5A

2027
  • pH
    • A Source Unknown

3.8 Miles

2014

5A

2027


Region 5

Twain Harte Lake

Lake & Reservoir

53631010  /  18040009
  • pH
    • A Source Unknown

8.1 Acres

2020

5A

2033


Region 5

Ulatis Creek (Solano County)

River & Stream

5510.000000,5511.100000,5560.100001,5560.100002  /  18020109
  • Bifenthrin
    • A Source Unknown

27 Miles

2020

5A

2035
  • Chlorpyrifos
    • Agriculture

27 Miles

2010

5C

2026
  • Diuron
    • Agriculture

27 Miles

2014

5C

2019
  • Imidacloprid
    • A Source Unknown

27 Miles

2020

5A

2035
  • Indicator Bacteria
    • A Source Unknown

27 Miles

2014

5A

2035
  • Metolachlor
    • A Source Unknown

27 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

27 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

27 Miles

2014

5A

2027


Region 5

Unknown tributary of Camanche Reservoir near Camanche Road (Amador County)

River & Stream

6531.200000  / 
  • Manganese
    • A Source Unknown

1.3 Miles

2020

5A

2035
  • Selenium
    • No Source Analysis Available

1.3 Miles

2020

5A

2035


Region 5

Unknown tributary to South Fork Cosumnes River (Amador County)

River & Stream

6532.240701  / 
  • Oxygen, Dissolved
    • A Source Unknown

1.8 Miles

2020

5A

2035


Region 5

Unnamed Tributary to Alder Creek (Sacramento County)

River & Stream

5514.250001,5519.210000  / 
  • Bifenthrin
    • A Source Unknown

1 Miles

2020

5A

2035
  • Fipronil
    • A Source Unknown

1 Miles

2020

5A

2035
  • Fipronil Sulfone
    • A Source Unknown

1 Miles

2020

5A

2035
  • Imidacloprid
    • A Source Unknown

1 Miles

2020

5A

2035
  • Pyrethroids
    • A Source Unknown

1 Miles

2020

5A

2035


Region 5

Unnamed tribuatary near Table Mountain Rancheria (Fresno County)

River & Stream

6540.700203  / 
  • Total Dissolved Solids
    • A Source Unknown

4.8 Miles

2020

5A

2035


Region 5

Unnamed tributary to Coyote Creek (San Joaquin County)

River & Stream

6531.110000  / 
  • Oxygen, Dissolved
    • A Source Unknown

5.6 Miles

2020

5A

2035


Region 5

Victoria Canal (in Delta Waterways, central portion)

River & Stream

6544.000000  / 
  • Arsenic
    • A Source Unknown

4 Miles

2020

5A

2033
  • Bifenthrin
    • A Source Unknown

4 Miles

2020

5A

2035
  • Oxygen, Dissolved
    • A Source Unknown

4 Miles

2020

5A

2035
  • Pyrethroids
    • A Source Unknown

4 Miles

2020

5A

2035
  • Specific Conductivity
    • A Source Unknown

4 Miles

2020

5A

2033


Region 5

Wadsworth Canal

River & Stream

52030000  /  18020106
  • Chlorpyrifos
    • Agriculture

16 Miles

2010

5C

2026
  • Diazinon
    • Agriculture

16 Miles

2006

5C

2026
  • Indicator Bacteria
    • A Source Unknown

16 Miles

2014

5A

2027


Region 5

Walker Creek (Glenn County)

River & Stream

52021000  /  18020104
  • Chlorpyrifos
    • Agriculture

18 Miles

2014

5C

2026
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

18 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

18 Miles

2014

5A

2027


Region 5

Walthall Slough (in Delta Waterways, eastern portion)

River & Stream

54400000  /  18040002
  • Oxygen, Dissolved
    • A Source Unknown

9.4 Miles

2010

5A

2035
  • Total Dissolved Solids
    • A Source Unknown

9.4 Miles

2020

5A

2035


Region 5

Webb, Lake

Lake & Reservoir

55710000  /  18030012
  • Mercury
    • A Source Unknown

837 Acres

2014

5A

2033


Region 5

West Squaw Creek (below Balaklala Mine)

River & Stream

50620010  /  18020005
  • Cadmium
    • A Source Unknown

2 Miles

2006

5A

2027
    All resource extraction sources are abandoned mines.
  • Copper
    • A Source Unknown

2 Miles

2006

5A

2027
    All resource extraction sources are abandoned mines.
  • Lead
    • A Source Unknown

2 Miles

2006

5A

2027
    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

2 Miles

2006

5A

2027
    All resource extraction sources are abandoned mines.


Region 5

West Valley Reservoir

Lake & Reservoir

52653045  /  18020002
  • Mercury
    • A Source Unknown

931 Acres

2014

5A

2027


Region 5

Westley Wasteway (Stanislaus County)

River & Stream

54110000  /  18040002
  • Chlorpyrifos
    • Agriculture

4 Miles

2010

5C

2026
  • Dimethoate
    • A Source Unknown

4 Miles

2010

5A

2027
  • Indicator Bacteria
    • A Source Unknown

4 Miles

2014

5A

2027


Region 5

Whiskeytown Lake

Lake & Reservoir

52461000  /  18020112
  • Mercury
    • A Source Unknown

3140 Acres

2014

5A

2027


Region 5

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

Lake & Reservoir

52463010  /  18020112
  • Mercury
    • A Source Unknown

98 Acres

2010

5A

2027


Region 5

Wildwood, Lake (Nevada County)

Lake & Reservoir

51720020  /  18020125
  • Mercury
    • A Source Unknown

289 Acres

2010

5A

2033


Region 5

Willow Creek (Colusa and Glenn County)

River & Stream

5520.210000  / 
  • Aluminum
    • A Source Unknown

21 Miles

2020

5A

2035


Region 5

Willow Creek (Lassen County, Central Valley)

River & Stream

5526.610701,5526.610702,5526.610704,5526.610801  /  18020002
  • Indicator Bacteria
    • A Source Unknown

26 Miles

2014

5A

2021
  • pH
    • A Source Unknown

26 Miles

2010

5A

2021


Region 5

Willow Creek (Madera County)

River & Stream

54021051  /  18040006
  • Temperature, water
    • A Source Unknown

6.2 Miles

2006

5A

2033


Region 5

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

River & Stream

52463010  /  18020112
  • Acid Mine Drainage
    • A Source Unknown

4 Miles

1998

5A

2019
    All resource extraction sources are abandoned mines.
  • Aluminum
    • A Source Unknown

4 Miles

2020

5A

2035
  • Copper
    • A Source Unknown

4 Miles

1998

5A

2019
    All resource extraction sources are abandoned mines.
  • Zinc
    • A Source Unknown

4 Miles

1998

5A

2019
    All resource extraction sources are abandoned mines.


Region 5

Willow Slough (Yolo County)

River & Stream

51120000  /  18020109
  • Boron
    • A Source Unknown

10 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

2027


Region 5

Willow Slough Bypass (Yolo County)

River & Stream

51120000  /  18020109
  • Boron
    • A Source Unknown

6.2 Miles

2010

5A

2021
  • Chlorpyrifos
    • Agriculture

6.2 Miles

2014

5C

2026
  • Diuron
    • Agriculture

6.2 Miles

2014

5C

2020
  • Indicator Bacteria
    • A Source Unknown

6.2 Miles

2014

5A

2027
  • Malathion
    • Agriculture

6.2 Miles

2014

5C

2020
  • Selenium
    • A Source Unknown

6.2 Miles

2010

5A

2027
  • Specific Conductivity
    • A Source Unknown

6.2 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

6.2 Miles

2014

5A

2027


Region 5

Wolf Creek (Nevada County)

River & Stream

51632010  /  18020126
  • Indicator Bacteria
    • A Source Unknown

23 Miles

2014

5A

2019


Region 5

Woods Creek (Tuolumne County)

River & Stream

53631041  /  18040009
  • Aluminum
    • A Source Unknown

15 Miles

2020

5A

2035
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

2027


Region 5

Woodward Reservoir

Lake & Reservoir

6535.400000  /  18040002
  • Mercury
    • A Source Unknown

1717 Acres

2010

5A

2027


Region 5

Yankee Slough (Placer and Sutter Counties)

River & Stream

51510000  /  18020108
  • Chlorpyrifos
    • Agriculture

13 Miles

2010

5C

2026
  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

2021


Region 5

Yokohl Creek

River & Stream

7553.500102,7553.500103,7553.500104,7553.500200,7558.100000  / 
  • Copper
    • A Source Unknown

22 Miles

2020

5A

2035
  • Diazinon
    • A Source Unknown

22 Miles

2020

5A

2035
  • Toxicity
    • A Source Unknown

22 Miles

2020

5A

2035


Region 5

Yuba River (Englebright Lake Dam to Feather River, Lower)

River & Stream

5515.200000,5515.300000,5517.120004,5517.120005,5517.140003  /  18020106
  • Aluminum
    • A Source Unknown

24 Miles

2020

5A

2035
  • Chlorodibromomethane
    • A Source Unknown

24 Miles

2020

5A

3035
  • Chloroform
    • A Source Unknown

24 Miles

2020

5A

2035
  • Copper
    • A Source Unknown

24 Miles

2014

5A

2027
  • Dichlorobromomethane
    • A Source Unknown

24 Miles

2020

5A

2035
  • Mercury
    • A Source Unknown

24 Miles

2010

5A

2027
  • Total Trihalomethane (TTHM)
    • No Source Analysis Available

24 Miles

2020

5A

2035


Region 5

Yuba River (confluence of North and Middle Yuba Rivers to Englebright Lake)

River & Stream

5517.140002,5517.140004,5517.410201,5517.410202,5517.410203,5517.420101,5517.420102,5517.420103,5517.420203,5517.510101  /  18020125
  • Chromium
    • A Source Unknown

52 Miles

2014

5A

2027
  • Mercury
    • A Source Unknown

52 Miles

2010

5A

2021


Region 5

Yuba River, North Fork

River & Stream

51751011  /  18020125
  • Mercury
    • A Source Unknown

37 Miles

2010

5A

2027


Region 5

Yuba River, South Fork (Headwaters to Spaulding, Lake)

River & Stream

51734030  /  18020125
  • Copper
    • A Source Unknown

18 Miles

2014

5A

2027
  • Mercury
    • A Source Unknown

18 Miles

2020

5A

2033
  • Oxygen, Dissolved
    • A Source Unknown

18 Miles

2014

5A

2035


Region 5

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

River & Stream

51732031  /  18020126
  • Chromium
    • A Source Unknown

48 Miles

2014

5A

2027
  • Copper
    • A Source Unknown

48 Miles

2014

5A

2027
  • Iron
    • A Source Unknown

48 Miles

2014

5A

2027
  • Mercury
    • A Source Unknown

48 Miles

2010

5A

2027
  • Temperature, water
    • A Source Unknown

48 Miles

2010

5A

2021


Region 5

Zayak (Swan) Lake

Lake & Reservoir

51620010  /  18020126
  • Mercury
    • A Source Unknown

26 Acres

2014

5A

2027


Region 6

Amargosa River (Nevada border to Tecopa)

River & Stream

9609.420000  /  18090202
  • Arsenic
    • Natural Sources

60 Miles

2010

5A

2031


Region 6

Amargosa River (Tecopa to Upper Canyon)

River & Stream

9609.420000  /  18090202
  • Arsenic
    • A Source Unknown

2.5 Miles

2010

5A

2031


Region 6

Amargosa River (Willow Creek confluence to Badwater)

River & Stream

9609.110800  /  18090203
  • Arsenic
    • A Source Unknown

73 Miles

2012

5A

2031


Region 6

Arrowhead, Lake

Lake & Reservoir

9628.200000  /  18090208
  • Mercury
    • A Source Unknown

736 Acres

2012

5A

2025


Region 6

Bidwell Creek

River & Stream

8641.300102,8641.300104,8641.300400  /  18080001
  • Total Dissolved Solids
    • A Source Unknown

12 Miles

2010

5A

2031


Region 6

Bijou Park Creek

River & Stream

8634.100302,8634.300000  /  16050101
  • Iron
    • A Source Unknown

1.6 Miles

2012

5A

2028
  • Oil and Grease
    • A Source Unknown

1.6 Miles

2012

5A

2028
  • Phosphorus
    • A Source Unknown

1.6 Miles

2012

5B

2011
  • Total Nitrogen as N
    • A Source Unknown

1.6 Miles

2012

5B

2011
  • Turbidity
    • A Source Unknown

1.6 Miles

2012

5B

2011


Region 6

Bishop Creek B-1 Drain

River & Stream

9603.202800  / 
  • Indicator Bacteria
    • A Source Unknown

0.31 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Bishop Creek Canal

River & Stream

9603.202800  /  18090102
  • Indicator Bacteria
    • A Source Unknown

7 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Bishop Creek Forks (North and South Forks below bifurcation)

River & Stream

9603.202800  / 
  • Indicator Bacteria
    • A Source Unknown

9.7 Miles

2014

5A

2022


Region 6

Blackwood Creek

River & Stream

8634.200201  /  16050101
  • Iron
    • A Source Unknown
    • Unknown Nonpoint Source

7 Miles

2002

5A

2031
  • Nitrogen
    • A Source Unknown

7 Miles

2002

5B

2011
  • Phosphorus
    • A Source Unknown

7 Miles

2002

5B

2011
  • Sedimentation/Siltation
    • A Source Unknown

7 Miles

1996

5B

2008


Region 6

Bodie Creek

River & Stream

8630.200201,8630.200202  /  18090101
  • Mercury
    • A Source Unknown

10 Miles

2006

5A

2031


Region 6

Bridgeport Reservoir

Lake & Reservoir

8630.100103,8630.300100,8630.300301,8630.300302,8630.300403,8630.300500  /  16050301
  • Mercury
    • A Source Unknown

2557 Acres

2010

5A

2031
  • Nitrogen
    • A Source Unknown

2557 Acres

1992

5A

2031
  • Phosphorus
    • A Source Unknown

2557 Acres

1992

5A

2031
  • Sedimentation/Siltation
    • A Source Unknown

2557 Acres

1992

5A

2031


Region 6

Carson River, East Fork

River & Stream

8632.100101,8632.100102,8632.100103,8632.100501,8632.100502,8632.100604,8632.100701,8632.100702  /  16050201
  • Boron
    • A Source Unknown

47 Miles

2010

5A

2025
  • Indicator Bacteria
    • A Source Unknown

47 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Oxygen, Dissolved
    • A Source Unknown

47 Miles

2010

5A

2031
    This listing is based on dissolved oxygen saturation data.
  • Phosphorus
    • A Source Unknown

47 Miles

2010

5A

2025
  • Sulfates
    • A Source Unknown

47 Miles

2010

5A

2025
  • Total Dissolved Solids
    • A Source Unknown

47 Miles

2010

5A

2028
  • Turbidity
    • A Source Unknown

47 Miles

2010

5A

2031


Region 6

Carson River, West Fork (Headwaters to Hope Valley)

River & Stream

8633.100002,8633.200001,8633.200002,8633.200004,8633.200005  /  16050201
  • Nitrogen, Nitrate
    • A Source Unknown

19 Miles

2014

5A

2021
  • Phosphorus
    • A Source Unknown

19 Miles

2002

5A

2019
  • Sulfates
    • A Source Unknown

19 Miles

2010

5A

2025
  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

19 Miles

2014

5A

2031


Region 6

Carson River, West Fork (Hope Valley to Woodfords)

River & Stream

8633.100002,8633.100003  /  16050201
  • Chloride
    • A Source Unknown

3.7 Miles

2012

5A

2022
  • Nitrogen
    • A Source Unknown

3.7 Miles

2002

5A

2022
  • Nitrogen, Nitrate
    • A Source Unknown

3.7 Miles

2014

5A

2022
  • Phosphorus
    • A Source Unknown

3.7 Miles

2012

5A

2031
  • Sulfates
    • A Source Unknown

3.7 Miles

2012

5A

2025
  • Total Dissolved Solids
    • A Source Unknown

3.7 Miles

2012

5A

2025
  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

3.7 Miles

2012

5A

2031
  • Turbidity
    • A Source Unknown

3.7 Miles

2012

5A

2025


Region 6

Carson River, West Fork (Woodfords to stateline)

River & Stream

8633.100003  /  16050201
  • Indicator Bacteria
    • A Source Unknown

2.4 Miles

2014

5A

2022
    This waterbody segment is now listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Iron
    • A Source Unknown

2.4 Miles

2014

5A

2031
  • Nitrogen
    • A Source Unknown

2.4 Miles

2014

5A

2031
  • Nitrogen, Nitrate
    • A Source Unknown

2.4 Miles

2014

5A

2031
  • Sulfates
    • A Source Unknown

2.4 Miles

2014

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

2.4 Miles

2014

5A

2031
  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown

2.4 Miles

2014

5A

2031
  • Turbidity
    • A Source Unknown

2.4 Miles

2014

5A

2031


Region 6

Cedar Creek

River & Stream

8641.200102,8641.200400  /  18080001
  • Chloride
    • A Source Unknown

9.2 Miles

2010

5A

2031
  • Indicator Bacteria
    • A Source Unknown

9.2 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Total Dissolved Solids
    • A Source Unknown

9.2 Miles

2010

5A

2031


Region 6

Cold Creek

River & Stream

8634.100301,8634.100303  /  16050101
  • Nitrogen
    • A Source Unknown

8 Miles

2014

5A

2031


Region 6

Convict Creek

River & Stream

9603.100601,9603.100603,9603.100604,9603.100803  / 
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Crab Creek

River & Stream

9628.200000  /  18090208
  • Oxygen, Dissolved
    • A Source Unknown

5.5 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

5.5 Miles

2010

5A

2031


Region 6

Crowley Lake

Lake & Reservoir

9603.100802,9603.100803  /  18090102
  • Ammonia
    • A Source Unknown

4140 Acres

2006

5A

2028
  • Mercury
    • A Source Unknown

4140 Acres

2010

5A

2031
  • Oxygen, Dissolved
    • A Source Unknown

4140 Acres

2006

5A

2028


Region 6

Deep Creek (below Lake) (San Bernardino County)

River & Stream

9628.200000  /  18090208
  • Chloride
    • A Source Unknown

25 Miles

2010

5A

2031
  • Oxygen, Dissolved
    • A Source Unknown

25 Miles

2010

5A

2031
  • Phosphate
    • A Source Unknown

25 Miles

2010

5A

2031
  • Sodium
    • A Source Unknown

25 Miles

2014

5A

2031
  • Sulfates
    • A Source Unknown

25 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

25 Miles

2010

5A

2031


Region 6

Donner Lake

Lake & Reservoir

8635.200201  /  16050102
  • Arsenic
    • A Source Unknown

834 Acres

2012

5A

2025
  • Chlordane
    • A Source Unknown

834 Acres

2012

5A

2025
  • PCBs (Polychlorinated biphenyls) (tissue)
    • A Source Unknown

834 Acres

2012

5A

2025


Region 6

Dressler Ditch

River & Stream

8632.200000  /  16050201
  • Turbidity
    • A Source Unknown

2.1 Miles

2012

5A

2025


Region 6

Eagle Lake (Lassen County)

Lake & Reservoir

8637.310304,8637.310402,8637.310403,8637.310501,8637.310502,8637.310601,8637.310602,8637.310603,8637.310604,8637.320000  /  18080003
  • Nitrogen
    • A Source Unknown

24377 Acres

2002

5A

2025
  • Phosphorus
    • A Source Unknown

24377 Acres

2002

5A

2025


Region 6

East Tributary Griff Creek

River & Stream

8634.200105  / 
  • Indicator Bacteria
    • A Source Unknown

1.8 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

East Walker River, below Bridgeport Reservoir

River & Stream

8630.100101,8630.100102,8630.100103  /  16050301
  • Arsenic
    • A Source Unknown

8.3 Miles

2010

5A

2031
  • Manganese
    • A Source Unknown

8.3 Miles

2010

5A

2028
  • Nitrogen
    • A Source Unknown

8.3 Miles

2002

5A

2031
  • Oxygen, Dissolved
    • A Source Unknown

8.3 Miles

2010

5A

2031
  • Phosphorus
    • A Source Unknown

8.3 Miles

2002

5A

2031
  • Sedimentation/Siltation
    • A Source Unknown

8.3 Miles

2002

5A

2031
  • Turbidity
    • A Source Unknown

8.3 Miles

2010

5A

2028


Region 6

General Creek

River & Stream

8634.200303,8634.300000  /  16050101
  • Iron
    • A Source Unknown
    • Unknown Nonpoint Source

9.2 Miles

2002

5A

2031
  • Phosphorus
    • A Source Unknown

9.2 Miles

2002

5B

2011


Region 6

Gregory, Lake

Lake & Reservoir

9628.200000  /  18090208
  • Chlordane
    • A Source Unknown

81 Acres

2012

5A

2031
  • Mercury
    • A Source Unknown

81 Acres

2012

5A

2025


Region 6

Griff Creek

River & Stream

8634.200105,8634.300000  / 
  • Indicator Bacteria
    • A Source Unknown

4 Miles

2014

5A

2031


Region 6

Haiwee Reservoir

Lake & Reservoir

9624.100701,9624.100702,9624.100703  /  18090103
  • Copper
    • Other

1716 Acres

1998

5A

2028


Region 6

Heavenly Valley Creek (USFS boundary to Trout Creek)

River & Stream

8634.100301  /  16050101
  • Chloride
    • A Source Unknown

1.5 Miles

2002

5A

2027
  • Sedimentation/Siltation
    • A Source Unknown

1.5 Miles

2002

5B

2011


Region 6

Heavenly Valley Creek (source to USFS boundary)

River & Stream

8634.100301  /  16050101
  • Benthic Community Effects
    • A Source Unknown

2 Miles

2014

5A

2031
  • Chloride
    • A Source Unknown

2 Miles

2002

5A

2028
  • Phosphorus
    • A Source Unknown

2 Miles

2002

5B

2011
  • Sedimentation/Siltation
    • A Source Unknown

2 Miles

2006

5B

2002


Region 6

Hidden Valley Creek

River & Stream

8634.100202  /  16050101
  • Phosphorus
    • A Source Unknown

2.9 Miles

2012

5A

2025


Region 6

Hilton Creek

River & Stream

9603.100801,9603.100803  /  18090102
  • Oxygen, Dissolved
    • A Source Unknown

9.4 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

9.4 Miles

2010

5A

2031


Region 6

Holcomb Creek

River & Stream

9628.200000  /  18090208
  • Fluoride
    • A Source Unknown

19 Miles

2010

5A

2031
  • Sulfates
    • A Source Unknown

19 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

19 Miles

2010

5A

2031


Region 6

Honey Lake

Saline Lake

8637.100600,8637.200905  /  18080003
  • Arsenic
    • A Source Unknown

55526 Acres

1998

5A

2031
    Arsenic in Honey Lake is ultimately from natural sources, but the lake is affected by geothermal discharges. Further study is needed to determine whether a TMDL is needed.
  • Salinity/TDS/Chlorides
    • A Source Unknown

55526 Acres

1998

5A

2031
    Honey Lake has naturally high salinity but is affected by low flows and geothermal discharges. Further study is needed to verify whether impairment occurs and whether a TMDL is needed.


Region 6

Honey Lake Area Wetlands

Wetland, Freshwater

8637.100600,8637.200905  /  18080003
  • Metals
    • A Source Unknown

55526 Acres

2002

5A

2031
    The wetlands adjacent to Honey Lake are affected by salts and trace elements from natural sources, which may be concentrated by evaporation during dry years. Additional study is needed to verify whether impairment exists and whether a TMDL is needed.


Region 6

Honey Lake Wildfowl Management Ponds

Saline Lake

8637.200905  /  18080003
  • Metals
    • A Source Unknown

776 Acres

1998

5A

2031
    The ponds are affected by salts and trace elements from natural sources, which may be concentrated by evaporation during dry years. Additional study is needed to verify whether impairment exists and whether a TMDL is needed.
  • Salinity/TDS/Chlorides
    • A Source Unknown

776 Acres

1998

5A

2031
    The ponds are affected by salts and trace elements from natural sources, which may be concentrated by evaporation during dry years. Additional study is needed to verify whether impairment exists and whether a TMDL is needed.
  • Trace Elements
    • A Source Unknown

776 Acres

1998

5A

2031


Region 6

Horseshoe Meadow Creek

River & Stream

9603.301501  / 
  • Indicator Bacteria
    • A Source Unknown

1.5 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Horton Creek

River & Stream

9603.201601,9603.201607,9603.202800  / 
  • Indicator Bacteria
    • A Source Unknown

20 Miles

2014

5A

2031


Region 6

Hot Creek (Mono County)

River & Stream

9603.100502,9603.100503,9603.100505,9603.100803  / 
  • Boron
    • A Source Unknown

19 Miles

2014

5A

2031
  • Chloride
    • A Source Unknown

19 Miles

2014

5A

2031
  • Indicator Bacteria
    • A Source Unknown

19 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Mercury
    • A Source Unknown

19 Miles

2014

5A

2031


Region 6

Hot Creek (Walker)

River & Stream

8631.400303  /  16050302
  • Indicator Bacteria
    • A Source Unknown

4.6 Miles

2014

5A

2031


Region 6

Hot Creek, unknown tributary

River & Stream

9603.100803  / 
  • Indicator Bacteria
    • A Source Unknown

0.66 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Hot Springs Creek

River & Stream

8632.100602,8632.100603  / 
  • Total Dissolved Solids
    • A Source Unknown

7.2 Miles

2014

5A

2031


Region 6

Indian Creek (Alpine County)

River & Stream

8632.200000  /  16050201
  • Chloride
    • A Source Unknown

13 Miles

2012

5A

2025
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

2028
  • Oxygen, Dissolved
    • A Source Unknown

13 Miles

2012

5A

2025


Region 6

Jensen Slu

River & Stream

8637.200601,8637.200905  / 
  • Indicator Bacteria
    • A Source Unknown

4 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

LA Aqueduct Diversion

River & Stream

9603.301307,9603.301700  / 
  • Turbidity
    • A Source Unknown

0.59 Miles

2014

5A

2031


Region 6

Little Truckee River

River & Stream

8636.000101,8636.000201,8636.000202,8636.000204,8636.000700  / 
  • Indicator Bacteria
    • A Source Unknown

64 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Little Walker River

River & Stream

8631.400301,8631.400302,8631.400303,8631.400304,8631.400405  /  16050301
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Littlerock Reservoir

Lake & Reservoir

9626.800000  /  18090206
  • Manganese
    • A Source Unknown

106 Acres

2010

5A

2028
  • Mercury
    • A Source Unknown

106 Acres

2012

5A

2025
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

106 Acres

2012

5A

2025


Region 6

Lone Pine Creek (Inyo County)

River & Stream

9603.301306,9603.301307  /  18090103
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Long Valley Creek

River & Stream

8637.100101,8637.100102,8637.100103,8637.100104,8637.100105,8637.100107,8637.100201,8637.100202,8637.100203,8637.100301,(Total Count: 13)  / 
  • Indicator Bacteria
    • A Source Unknown

54 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Mammoth Creek (Headwaters to Twin Lakes outlet)

River & Stream

9603.100501,9603.100506  /  18090102
  • Total Dissolved Solids
    • A Source Unknown

4.8 Miles

2010

5A

2028


Region 6

Mammoth Creek (Old Mammoth Road to Highway 395)

River & Stream

9603.100501,9603.100503  /  18090102
  • Indicator Bacteria
    • A Source Unknown
    • Nonpoint Source
    • Unknown Nonpoint Source

4 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Manganese
    • A Source Unknown

4 Miles

1996

5A

2031
  • Mercury
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

4 Miles

2006

5A

2025
  • Oxygen, Dissolved
    • A Source Unknown

4 Miles

2010

5A

2031
  • Phosphate
    • A Source Unknown
    • Unknown Nonpoint Source

4 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

4 Miles

2010

5A

2028


Region 6

Mammoth Creek (Twin Lakes outlet to Old Mammoth Road)

River & Stream

9603.100501  /  18090102
  • Manganese
    • A Source Unknown

2.7 Miles

1996

5A

2025
  • Mercury
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

2.7 Miles

2006

5A

2025
  • Total Dissolved Solids
    • A Source Unknown

2.7 Miles

2010

5A

2031


Region 6

Markleeville Creek

River & Stream

8632.100603,8632.100604  /  16050201
  • Indicator Bacteria
    • A Source Unknown

3.6 Miles

2014

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

3.6 Miles

2014

5A

2031


Region 6

Martis Creek

River & Stream

8635.200401,8635.200402,8635.200403  /  16050102
  • Phosphorus
    • A Source Unknown

12 Miles

2014

5A

2031


Region 6

McGee Creek (Mono County)

River & Stream

9603.100604,9603.100701,9603.100702,9603.100803  / 
  • Phosphate
    • A Source Unknown

13 Miles

2014

5A

2031


Region 6

Mesquite Springs (Inyo County)

Wetland, Freshwater

60911000  /  18090203
  • Arsenic
    • A Source Unknown

0.17 Acres

2010

5A

2031
  • Boron
    • A Source Unknown

0.17 Acres

2010

5A

2031


Region 6

Milberry Creek

River & Stream

8632.100604  / 
  • Indicator Bacteria
    • A Source Unknown

6.6 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Mill City Tributary

River & Stream

9603.100501,9603.100501  /  18090102
  • Arsenic
    • A Source Unknown

3.1 Miles

2010

5A

2025
  • Mercury
    • A Source Unknown

3.1 Miles

2010

5A

2025


Region 6

Mill Creek (Modoc County)

River & Stream

8641.300101,8641.300102  /  18080001
  • Total Dissolved Solids
    • A Source Unknown

4.2 Miles

2010

5A

2031


Region 6

Mill Creek (tributary to West Walker River)

River & Stream

8631.100201,8631.100300,8631.100600  / 
  • Indicator Bacteria
    • A Source Unknown

9.4 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Mojave River (Mojave Forks Reservoir outlet to Upper Narrows)

River & Stream

9628.200000  /  18090208
  • Fluoride
    • A Source Unknown

15 Miles

2010

5A

2031
  • Sodium
    • A Source Unknown

15 Miles

2014

5A

2031
  • Sulfates
    • A Source Unknown

15 Miles

2010

5A

2031


Region 6

Mojave River (Upper Narrows to Lower Narrows)

River & Stream

9628.200000  /  18090208
  • Fluoride
    • A Source Unknown

3.7 Miles

2010

5A

2031
  • Manganese
    • A Source Unknown

3.7 Miles

2014

5A

2031
  • Oxygen, Dissolved
    • A Source Unknown

3.7 Miles

2010

5A

2031
  • Sodium
    • A Source Unknown

3.7 Miles

2014

5A

2031
  • Sulfates
    • A Source Unknown

3.7 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

3.7 Miles

2010

5A

2031


Region 6

Monitor Creek

River & Stream

8632.100701,8632.100703  /  16050201
  • Aluminum
    • A Source Unknown

4.1 Miles

2002

5A

2031
  • Iron
    • A Source Unknown

4.1 Miles

2002

5A

2031
  • Manganese
    • A Source Unknown

4.1 Miles

2002

5A

2031
  • Silver
    • A Source Unknown

4.1 Miles

2002

5A

2031
  • Sulfates
    • A Source Unknown

4.1 Miles

2002

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

4.1 Miles

2002

5A

2031


Region 6

Owens River (Long HA)

River & Stream

9603.100201,9603.100202,9603.100304,9603.100306,9603.100401,9603.100803  /  18090102
  • Indicator Bacteria
    • A Source Unknown

23 Miles

2014

5A

2031


Region 6

Owens River (Upper)

River & Stream

9603.100803,9603.201304,9603.201305,9603.201306,9603.201502,9603.202800  /  18090102
  • Indicator Bacteria
    • A Source Unknown

80 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Sodium
    • A Source Unknown

80 Miles

2014

5A

2031


Region 6

Palmdale Lake

Lake & Reservoir

9626.500000  / 
  • Dieldrin
    • A Source Unknown

226 Acres

2012

5A

2031


Region 6

Pine Creek (Inyo County)

River & Stream

9603.201501,9603.201502,9603.201504,9603.201602  / 
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

2031


Region 6

Pleasant Valley Reservoir

Lake & Reservoir

9603.202800  /  18090102
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

98 Acres

1996

5A

2031


Region 6

Red Lake Creek

River & Stream

8633.200003,8633.200004  / 
  • Total Dissolved Solids
    • A Source Unknown

5.7 Miles

2014

5A

2031


Region 6

Reversed Creek

River & Stream

9601.000401,9601.000402  / 
  • Indicator Bacteria
    • A Source Unknown

4.8 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Robinson Creek (Barney Lake to Twin Lakes)

River & Stream

8630.400301,8630.400302,8630.400306  /  16050301
  • Nitrogen
    • A Source Unknown

4.1 Miles

2014

5A

2031


Region 6

Rock Creek (tributary to Owens River)

River & Stream

9603.201402,9603.201403,9603.201404,9603.201502,9603.201503,9603.201602,9603.202800  /  18090102
  • Total Dissolved Solids
    • A Source Unknown

26 Miles

2010

5A

2025


Region 6

Round Valley Creek

River & Stream

9603.301501  / 
  • Indicator Bacteria
    • A Source Unknown

0.49 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Sardine Creek

River & Stream

8631.400203  / 
  • Indicator Bacteria
    • A Source Unknown

4.1 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Sheep Creek

River & Stream

9628.200000  /  18090208
  • Nitrogen, Nitrate
    • A Source Unknown

2.1 Miles

2014

5A

2031
  • Oxygen, Dissolved
    • A Source Unknown

2.1 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

2.1 Miles

2010

5A

2031


Region 6

Silverwood Lake

Lake & Reservoir

9628.200000  /  18090208
  • Mercury
    • A Source Unknown

906 Acres

2012

5A

2025
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

906 Acres

2012

5A

2025


Region 6

Spainhower Anchor Ranch Ditch

River & Stream

9603.301700  / 
  • Turbidity
    • A Source Unknown

0.53 Miles

2014

5A

2031


Region 6

Susan River (Headwaters to Willard Crk)

River & Stream

8637.200101,8637.200103,8637.200105,8637.200201,8637.200202,8637.200203,8637.200400  /  18080003
  • Chloride
    • A Source Unknown

38 Miles

2010

5A

2031
  • Nitrogen
    • A Source Unknown

38 Miles

2014

5A

2028
  • Phosphorus
    • A Source Unknown

38 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

38 Miles

2010

5A

2028


Region 6

Susan River (Susanville to Honey Lake)

River & Stream

8637.200905  /  18080003
  • Boron
    • A Source Unknown

9.3 Miles

2014

5A

2031
  • Indicator Bacteria
    • A Source Unknown

9.3 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Nitrogen
    • A Source Unknown

9.3 Miles

2014

5A

2031
  • Sodium
    • A Source Unknown

9.3 Miles

2014

5A

2031
  • Sulfates
    • A Source Unknown

9.3 Miles

2014

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

9.3 Miles

2014

5A

2031
  • Toxicity
    • A Source Unknown

9.3 Miles

2014

5A

2028
  • Turbidity
    • A Source Unknown

9.3 Miles

2014

5A

2031


Region 6

Susan River (Willard Creek to Susanville)

River & Stream

8637.200400,8637.200601,8637.200802,8637.200905  /  18080003
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Nitrogen
    • A Source Unknown

18 Miles

2014

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

18 Miles

2010

5A

2028
  • Turbidity
    • A Source Unknown

18 Miles

2010

5A

2031
  • Unknown Toxicity
    • A Source Unknown

18 Miles

1996

5A

2028


Region 6

Swauger Creek

River & Stream

8630.300500,8630.400101,8630.400102,8630.400103  /  16050301
  • Indicator Bacteria
    • Agricultural Water Diversion
    • Agriculture-grazing
    • Grazing-Related Sources
    • Pasture Grazing-Riparian and/or Upland
    • Streambank Modification/Destabilization
    • Unknown Nonpoint Source

14 Miles

2014

5C

2028
  • Phosphorus
    • A Source Unknown

14 Miles

2002

5A

2031


Region 6

Tahoe Keys Sailing Lagoon

Lake & Reservoir

8634.100402,8634.300000  /  18090206
  • pH
    • A Source Unknown

113 Acres

2012

5A

2025


Region 6

Tallac Creek (below Hwy 89)

River & Stream

8634.100401,8634.300000  /  16050101
  • Indicator Bacteria
    • A Source Unknown

2 Miles

2014

5A

2031
    This waterbody segment is updated to listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Topaz Lake

Lake & Reservoir

8631.100100,8631.100600  /  16050302
  • Indicator Bacteria
    • A Source Unknown

921 Acres

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Mercury
    • A Source Unknown

921 Acres

2012

5A

2031


Region 6

Tributary to Mill Creek

River & Stream

8641.300302,8641.300400  / 
  • Total Dissolved Solids
    • A Source Unknown

1.8 Miles

2014

5A

2031


Region 6

Trout Creek (above Hwy 50)

River & Stream

8634.100202,8634.100301  /  16050101
  • Iron
    • A Source Unknown

12 Miles

2002

5A

2031
    This issue may be addressed through revision of the water quality objective rather than through a TMDL.
  • Nitrogen
    • A Source Unknown

12 Miles

2002

5B

2011
  • Phosphorus
    • A Source Unknown

12 Miles

2002

5B

2014
  • Turbidity
    • Atmospheric Deposition
    • Channel Erosion
    • Urban Runoff--Erosion and Sedimentation

12 Miles

2014

5B

2011


Region 6

Trout Creek (below Hwy 50)

River & Stream

8634.100301,8634.100402  /  16050101
  • Indicator Bacteria
    • A Source Unknown

0.82 Miles

2014

5A

2031
  • Iron
    • A Source Unknown

0.82 Miles

2002

5A

2031
    This listing may be addressed through revision of the water quality objective rather than through a TMDL.
  • Nitrogen
    • A Source Unknown

0.82 Miles

2002

5B

2011
  • Phosphorus
    • A Source Unknown

0.82 Miles

2002

5B

2011


Region 6

Truckee River

River & Stream

8634.200103,8635.100003,8635.200101,8635.200102,8635.200103,8635.200202,8635.200402,8635.200501,8635.200502,8635.200504  /  16050101
  • Nitrogen, Nitrate
    • A Source Unknown

37 Miles

2014

5A

2031
  • Sedimentation/Siltation
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation
    • Highway/Road/Bridge Construction
    • Natural Sources
    • Nonpoint Source
    • Range Grazing-Riparian and/or Upland
    • Recreational and Tourism Activities (non-boating)
    • Silviculture
    • Snow skiing activities
    • Streambank Modification/Destabilization

37 Miles

1996

5B

2009


Region 6

Truckee River, Upper (above Christmas Valley)

River & Stream

8634.100102  /  16050101
  • Iron
    • A Source Unknown

8.2 Miles

2002

5A

2031
    This listing may be addressed through revision of the water quality objective rather than through a TMDL.
  • Phosphorus
    • A Source Unknown

8.2 Miles

2002

5B

2011


Region 6

Truckee River, Upper (below Christmas Valley)

River & Stream

8634.100102,8634.100301,8634.100402,8634.100403  /  16050101
  • Indicator Bacteria
    • A Source Unknown

16 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Iron
    • A Source Unknown

16 Miles

2002

5A

2031
    This listing may be addressed through revision of the water quality objective rather than through a TMDL.
  • Phosphorus
    • A Source Unknown

16 Miles

2002

5B

2011


Region 6

Twin Lake, Upper (East Walker River HU)

Lake & Reservoir

8630.400301,8630.400302  /  16050301
  • Mercury
    • A Source Unknown

306 Acres

2012

5A

2031


Region 6

Virginia Creek

River & Stream

8630.300402,8630.300500,8630.400501,8630.400502  /  18090101
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.


Region 6

Ward Creek

River & Stream

8634.200204,8634.300000  /  16050101
  • Iron
    • A Source Unknown

6.2 Miles

2002

5A

2031
    This listing may be addressed through revision of the water quality objective rather than through a TMDL.
  • Nitrogen
    • A Source Unknown

6.2 Miles

2002

5B

2011
  • Phosphorus
    • A Source Unknown

6.2 Miles

2002

5B

2011
  • Sedimentation/Siltation
    • Channel Erosion

6.2 Miles

2002

5B

2011
  • Turbidity
    • A Source Unknown

6.2 Miles

2014

5B

2011


Region 6

West Fork Mojave River below Silverwood Lake

River & Stream

9628.200000  / 
  • Chloride
    • A Source Unknown

6.4 Miles

2014

5A

2031
  • Sodium
    • A Source Unknown

6.4 Miles

2014

5A

2031
  • Sulfates
    • A Source Unknown

6.4 Miles

2014

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

6.4 Miles

2014

5A

2031


Region 6

West Walker River

River & Stream

8631.100400,8631.100600,8631.400101,8631.400102,8631.400103,8631.400201,8631.400202,8631.400401,8631.400403,8631.400404,(Total Count: 11)  /  16050302
  • Boron
    • A Source Unknown

44 Miles

2010

5A

2025
  • Chloride
    • A Source Unknown

44 Miles

2010

5A

2025
  • Phosphorus
    • A Source Unknown

44 Miles

2010

5A

2031
  • Total Dissolved Solids
    • A Source Unknown

44 Miles

2010

5A

2031
  • Turbidity
    • A Source Unknown

44 Miles

2010

5A

2031


Region 6

Wolf Creek (Alpine County)

River & Stream

8632.100301,8632.100302,8632.100501  /  16050201
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

2031
    This waterbody segment is listed as impaired by bacteria for the MUN beneficial use based on evaluation of fecal coliform data against the Lahontan Regions' bacteria water quality standard.
  • Sedimentation/Siltation
    • A Source Unknown

13 Miles

1998

5A

2031


Region 7

Alamo River

River & Stream

10723.100000,10728.000000  /  18100200
  • Ammonia
    • A Source Unknown

59 Miles

2014

5A

2033
  • Chlordane
    • A Source Unknown

59 Miles

1800

5A

2021
  • Chloride
    • A Source Unknown

59 Miles

2012

5A

2025
  • Chlorpyrifos
    • A Source Unknown

59 Miles

1994

5A

2021
  • Cyhalothrin, Lambda
    • A Source Unknown

59 Miles

2012

5A

2031
  • Cypermethrin
    • A Source Unknown

59 Miles

2012

5A

2031
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

59 Miles

2014

5A

2033
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

59 Miles

2014

5A

2033
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

59 Miles

2014

5A

2021
  • Diazinon
    • A Source Unknown

59 Miles

2010

5A

2021
  • Dieldrin
    • A Source Unknown

59 Miles

1994

5A

2021
  • Enterococcus
    • A Source Unknown

59 Miles

2010

5A

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

59 Miles

2010

5A

2021
  • Malathion
    • A Source Unknown

59 Miles

2010

5A

2025
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

59 Miles

2006

5A

2021
  • Pyrethroids
    • A Source Unknown

59 Miles

2014

5A

2033
  • Sedimentation/Siltation
    • Agricultural Return Flows

59 Miles

1994

5B

2002
  • Selenium
    • Out-of-state source

59 Miles

1992

5A

2025
    Selenium originates from Upper Basin Portion of Colorado River. Elevated fish tissue levels. For 2006, selenium was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.
  • Toxaphene
    • A Source Unknown

59 Miles

1992

5A

2021
  • Toxicity
    • A Source Unknown

59 Miles

1800

5A

2025


Region 7

All American Canal

River & Stream

10723.100000,10726.000000,10727.000000  /  15030107
  • Chlordane
    • A Source Unknown

80 Miles

2014

5A

2033
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

80 Miles

2014

5A

2031
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

80 Miles

2014

5A

2033


Region 7

Coachella Valley Storm Water Channel

River & Stream

10719.470000,10728.000000  /  18100200
  • Ammonia
    • A Source Unknown

25 Miles

2014

5A

2025
  • DDT (Dichlorodiphenyltrichloroethane)
    • Agriculture

25 Miles

2014

5C

2021
  • Dieldrin
    • Agriculture

25 Miles

2010

5C

2021
    This listing for Dieldrin only applies to a 2 mile area of the Coachella Valley Storm Water Channel from Lincoln Street to the Salton Sea.
  • Disulfoton
    • A Source Unknown

25 Miles

2010

5A

2031
  • Indicator Bacteria
    • A Source Unknown

25 Miles

2012

5B

2012
    This listing for pathogens only applies to a 17 mile area of the Coachella Valley Storm Water Channel from Dillion Road to the Salton Sea.
  • Oxygen, Dissolved
    • A Source Unknown

25 Miles

2012

5A

2031
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

25 Miles

2010

5C

2021
    This listing for PCBs only applies to a 2 mile area of the Coachella Valley Storm Water Channel from Lincoln Street to the Salton Sea.
  • Toxaphene
    • Agriculture

25 Miles

2006

5C

2021
    This listing for toxaphene only applies to a 2 mile area of the Coachella Valley Storm Water Channel from Lincoln Street to the Salton Sea.
  • Toxicity
    • A Source Unknown

25 Miles

2012

5A

2025


Region 7

Colorado River (Imperial Reservoir to California-Mexico Border)

River & Stream

10727.000000  /  15030107
  • Manganese
    • A Source Unknown

18 Miles

2014

5A

2031
  • Turbidity
    • A Source Unknown

18 Miles

2014

5A

2033


Region 7

Colorado River and Associated Lakes and Reservoirs (California-Nevada border to Lake Havasu)

River & Stream

10713.100000,10713.200000,10713.300000  /  15030101
  • Toxicity
    • A Source Unknown

23 Miles

2012

5A

2025


Region 7

Colorado River and Associated Lakes and Reservoirs (Lake Havasu Dam to Imperial Dam)

River & Stream

10714.000000,10715.100000,10715.200000,10715.300000,10715.400000,10715.500000,10727.000000  /  15030107
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

147 Miles

2010

5A

2033
  • Toxicity
    • A Source Unknown

147 Miles

2012

5A

2025
  • Turbidity
    • A Source Unknown

147 Miles

2010

5A

2031


Region 7

Deep Canyon Creek (Morongo Area)

River & Stream

10719.320000  / 
  • Iron
    • A Source Unknown

6.3 Miles

2014

5A

2031
    This impairment determination does not apply to tribal waters.
  • Turbidity
    • A Source Unknown

6.3 Miles

2014

5A

2031
    This impairment determination does not apply to tribal waters.


Region 7

Ferguson Lake

Lake & Reservoir

10715.500000  /  15030104
  • Selenium
    • A Source Unknown

395 Acres

2012

5A

2031


Region 7

Hathaway Creek

River & Stream

10719.320000  / 
  • Turbidity
    • A Source Unknown

6.1 Miles

2014

5A

2031
    This impairment determination does not apply to tribal waters.


Region 7

Hathaway Creek, unnamed tributary

River & Stream

10719.320000  / 
  • Iron
    • A Source Unknown

2.1 Miles

2014

5A

2031
    This impairment determination does not apply to tribal waters.
  • Turbidity
    • A Source Unknown

2.1 Miles

2014

5A

2031
    This impairment determination does not apply to tribal waters.


Region 7

Havasu, Lake

Lake & Reservoir

10713.300000,10714.000000  /  15030101
  • Low Dissolved Oxygen
    • A Source Unknown

8998 Acres

2010

5A

2033


Region 7

Imperial Valley Drains

River & Stream

72310000  /  18100200
  • Ammonia
    • A Source Unknown

1225 Miles

2014

5A

2033
  • Chlordane
    • A Source Unknown

1225 Miles

2010

5A

2021
    This listing for Chlordane only applies to the Barbara Worth Drain, Peach Drain, Greeson Drain, South Central Drain, and Holtville Main Drain areas of the Imperial Valley drains.
  • Chlorpyrifos
    • A Source Unknown

1225 Miles

2010

5A

2031
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

1225 Miles

2014

5A

2033
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1225 Miles

2014

5A

2021
    The listing for DDT only applies to the Barbara Worth Drain, Peach Drain, and Rice Drain areas of the Imperial Valley drains.
  • Dieldrin
    • A Source Unknown

1225 Miles

2006

5A

2021
    The listing for dieldrin only applies to the Barbara Worth Drain and Fig Drain areas of the Imperial Valley drains.
  • Disulfoton
    • A Source Unknown

1225 Miles

2010

5A

2033
  • Imidacloprid
    • A Source Unknown

1225 Miles

2014

5A

2031
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1225 Miles

2006

5A

2021
    The listing for PCBs only applies to the Central Drain area of the Imperial Valley drains, from Meloland Road to the outlet into the Alamo River.
  • Sedimentation/Siltation
    • Agricultural Return Flows

1225 Miles

1998

5B

2005
  • Selenium
    • A Source Unknown

1225 Miles

1998

5A

2025
    Selenium originates from Upper Basin Portion of Colorado River. Elevated fish tissue levels.
  • Toxaphene
    • A Source Unknown

1225 Miles

2006

5A

2021
    This listing for toxaphene only applies to the Barbara Worth Drain, Peach Drain, and Rice Drain of the Imperial Valley drains.
  • Toxicity
    • A Source Unknown

1225 Miles

2014

5A

2031


Region 7

New River (Imperial County)

River & Stream

10723.100000,10728.000000  /  18100200
  • Ammonia
    • Out-of-state source

65 Miles

2014

5A

2025
  • Bifenthrin
    • A Source Unknown

65 Miles

2012

5A

2025
  • Chlordane
    • A Source Unknown

65 Miles

2006

5A

2021
  • Chloride
    • A Source Unknown

65 Miles

2012

5A

2025
  • Chlorpyrifos
    • A Source Unknown

65 Miles

1994

5A

2021
  • Cyhalothrin, Lambda
    • A Source Unknown

65 Miles

2012

5A

2031
  • Cypermethrin
    • A Source Unknown

65 Miles

2012

5A

2025
  • DDD (Dichlorodiphenyldichloroethane)
    • A Source Unknown

65 Miles

2014

5A

2031
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

65 Miles

2014

5A

2033
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

65 Miles

2006

5A

2021
  • Diazinon
    • A Source Unknown

65 Miles

2006

5A

2021
  • Dieldrin
    • A Source Unknown

65 Miles

2006

5A

2021
  • Disulfoton
    • A Source Unknown

65 Miles

2010

5A

2031
  • Hexachlorobenzene/ HCB
    • A Source Unknown

65 Miles

2010

5A

2025
  • Imidacloprid
    • A Source Unknown

65 Miles

2014

5A

2031
  • Indicator Bacteria
    • Out-of-state source

65 Miles

2012

5B

2002
  • Malathion
    • A Source Unknown

65 Miles

2010

5A

2031
  • Mercury
    • A Source Unknown

65 Miles

2006

5A

2025
  • Naphthalene
    • A Source Unknown

65 Miles

2010

5A

2025
  • Nutrients
    • A Source Unknown

65 Miles

1994

5A

2025
    Regional Board proposes to establish TMDL in cooperation with U.S. EPA and Mexico.
  • Organic Enrichment/Low Dissolved Oxygen
    • A Source Unknown

65 Miles

2002

5B

2012
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

65 Miles

2006

5A

2021
  • Pyrethroids
    • A Source Unknown

65 Miles

2014

5A

2033
  • Sediment
    • A Source Unknown

65 Miles

1800

5B

2003
  • Selenium
    • A Source Unknown

65 Miles

1994

5A

2025
  • Toxaphene
    • A Source Unknown

65 Miles

2006

5A

2021
  • Toxicity
    • A Source Unknown

65 Miles

2006

5A

2025
  • Trash
    • Out-of-state source

65 Miles

2002

5B

2007


Region 7

Palo Verde Outfall Drain and Lagoon

River & Stream

10715.400000  /  15030104
  • Chloride
    • A Source Unknown

18 Miles

2012

5A

2025
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

18 Miles

2014

5A

2033
  • Dieldrin
    • A Source Unknown

18 Miles

2010

5A

2031
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2012

5A

2019
    This listing was made by USEPA for 2006.
  • Total DDT (sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD)
    • A Source Unknown

18 Miles

2014

5A

2021
  • Toxaphene
    • Agriculture

18 Miles

2010

5C

2023
  • Toxicity
    • A Source Unknown

18 Miles

2012

5A

2031


Region 7

Potrero Creek

River & Stream

10719.320000  / 
  • Turbidity
    • A Source Unknown

6.8 Miles

2014

5A

2031
    This impairment determination does not apply to tribal waters.


Region 7

Salton Sea

Saline Lake

10719.470000,10721.000000,10722.200000,10723.100000,10725.000000,10728.000000  /  18100200
  • Ammonia
    • A Source Unknown

233045 Acres

2014

5A

2030
  • Arsenic
    • A Source Unknown

233045 Acres

2010

5A

2030
  • Chloride
    • A Source Unknown

233045 Acres

2012

5A

2030
  • Chlorpyrifos
    • A Source Unknown

233045 Acres

2010

5A

2030
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

233045 Acres

2010

5A

2033
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

233045 Acres

2014

5A

2030
  • Enterococcus
    • A Source Unknown

233045 Acres

2010

5A

2030
  • Low Dissolved Oxygen
    • A Source Unknown

233045 Acres

2010

5A

2030
  • Nutrients
    • A Source Unknown

233045 Acres

1994

5A

2030
  • Salinity
    • A Source Unknown

233045 Acres

1998

5A

2030
    TMDL development will not be effective in addressing this problem, which will require an engineering solution with federal, local, and state cooperation.
  • Toxicity
    • A Source Unknown

233045 Acres

2012

5A

2030


Region 7

West Branch Millard Canyon Creek

River & Stream

10719.320000  / 
  • Turbidity
    • A Source Unknown

7.9 Miles

2014

5A

2031
    This impairment determination does not apply to tribal waters.


Region 7

Wiest Lake

Lake & Reservoir

10723.100000  /  18100200
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

48 Acres

2014

5A

2021
  • Dieldrin
    • A Source Unknown

48 Acres

2010

5A

2025
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

48 Acres

2010

5A

2025


Region 8

Anaheim Bay

Bay & Harbor

80111000  /  18070201
  • Nickel
    • A Source Unknown

402 Acres

2002

5A

2019
    This listing was made by USEPA.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

402 Acres

1800

5A

2019
    This listing was made by USEPA.
  • Toxicity
    • A Source Unknown

402 Acres

2014

5A

2019


Region 8

Balboa Beach

Coastal & Bay Shoreline

4801.110000  /  18070201
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1.8 Miles

2006

5A

2019
  • Dieldrin
    • A Source Unknown

1.8 Miles

2006

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

1.8 Miles

2006

5A

2019


Region 8

Big Bear Lake

Lake & Reservoir

4801.710000  /  18070203
  • Chlordane
    • A Source Unknown

2820 Acres

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

2820 Acres

2014

5A

2027
  • Mercury
    • A Source Unknown

2820 Acres

1994

5A

2007
  • Noxious aquatic plants
    • A Source Unknown

2820 Acres

1994

5B

2007
  • Nutrients
    • Construction/Land Development

2820 Acres

1994

5B

2007
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2820 Acres

2006

5A

2019


Region 8

Bolsa Bay Marsh

Estuary

4801.110000  /  18070201
  • Toxicity
    • A Source Unknown

26 Acres

2014

5A

2027


Region 8

Bolsa Chica Channel

River & Stream

4801.110000  /  18070201
  • Ammonia (Unionized)
    • A Source Unknown

5.2 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

5.2 Miles

2010

5A

2021
  • pH
    • A Source Unknown

5.2 Miles

2010

5A

2021


Region 8

Bolsa Chica Ecological Reserve

Estuary

80111000  /  18070201
  • Toxicity
    • A Source Unknown

239 Acres

2014

5A

2027


Region 8

Bolsa Chica State Beach

Coastal & Bay Shoreline

4801.110000  /  18070201
  • Copper
    • A Source Unknown

2.6 Miles

2002

5A

2019
    This listing was made by USEPA.
  • Nickel
    • A Source Unknown

2.6 Miles

2002

5A

2019
    This listing was made by USEPA.


Region 8

Bonita Creek

River & Stream

4801.110000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

3.9 Miles

2014

5A

2029
  • Toxicity
    • A Source Unknown

3.9 Miles

2014

5A

2029


Region 8

Borrego Creek (from Irvine Blvd to San Diego Creek Reach 2)

River & Stream

4801.110000  /  18070203
  • Ammonia (Unionized)
    • A Source Unknown

2.4 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

2.4 Miles

2010

5A

2021


Region 8

Buck Gully Creek

River & Stream

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

0.34 Miles

2014

5A

2019
    Listing is downstream of Pacific Coast Highway. While this Decision was based on a sufficient number of exceedances of the E. coli Single Sample objective, it should be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Enterococcus, Fecal Coliform and Total Coliform LOEs will be retired. Further, the Single Sample objective was only used because of the lack of representative 30-day, 5-sample Geomean values. When representative 30-day, 5-smple Geomean values are collected the Single Sample E. coli LOE will be retired.


Region 8

Chino Creek Reach 1A (Santa Ana River R3 confl to just downstream of confl with Mill Creek)

River & Stream

80121000  /  18070203
  • Indicator Bacteria
    • Agriculture
    • Dairies
    • Urban Runoff/Storm Sewers

0.79 Miles

2014

5B

2007
  • Nutrients
    • A Source Unknown

0.79 Miles

2010

5A

2019


Region 8

Chino Creek Reach 1B (Mill Creek confl to start of concrete lined channel)

River & Stream

4801.210000  /  18070203
  • Chemical oxygen demand (COD)
    • A Source Unknown

6.9 Miles

2010

5A

2019
    Need more data to verify that delisting is appropriate and that conditions have in fact changed such that the 15 mg/l C.O.D. objective is being met.
  • Indicator Bacteria
    • Agriculture
    • Dairies
    • Urban Runoff/Storm Sewers

6.9 Miles

2014

5B

2007
    It should be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Enterococcus, Fecal Coliform and Total Coliform LOEs will be retired. Further, the Single Sample objective was presented only because of the lack of representative 30-day, 5-sample Geomean values, as per the Region 8 Basin Plan (2016 update) on page 4-17, footnote 3. When representative 30-day, 5-sample Geomean values are collected the Single Sample E. coli LOE will be retired.
  • Nutrients
    • A Source Unknown

6.9 Miles

2010

5A

2019


Region 8

Chino Creek Reach 2 (Beginning of concrete channel to confl w San Antonio Creek)

River & Stream

4801.210000  /  18070203
  • Indicator Bacteria
    • Unknown Nonpoint Source

2.5 Miles

2014

5B

2007
  • pH
    • A Source Unknown

2.5 Miles

2010

5A

2021


Region 8

Coyote Creek

River & Stream

4405.150000,4845.150000,4845.610000,4845.620000  /  18070104
  • Copper, Dissolved
    • A Source Unknown

14 Miles

2016

5B

2007
  • Indicator Bacteria
    • A Source Unknown

14 Miles

1996

5B

2016
  • Iron
    • A Source Unknown

14 Miles

2014

5A

2027
  • Malathion
    • A Source Unknown

14 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

14 Miles

2002

5A

2008
  • pH
    • A Source Unknown

14 Miles

2006

5A

2019


Region 8

Cucamonga Creek Reach 1 (Valley Reach)

River & Stream

4801.210000  /  18070203
  • Cadmium
    • A Source Unknown

12 Miles

2010

5A

2021
  • Copper
    • A Source Unknown

12 Miles

2010

5A

2021
  • Lead
    • A Source Unknown

12 Miles

2010

5A

2021
  • Zinc
    • A Source Unknown

12 Miles

2010

5A

2019


Region 8

Cucamonga Creek Reach 2 (Mountain Reach)

River & Stream

4801.240100,4801.240200  /  18070203
  • pH
    • A Source Unknown

7.1 Miles

2010

5A

2021


Region 8

East Garden Grove Wintersburg Channel

River & Stream

4801.110000  /  18070201
  • Ammonia (Unionized)
    • A Source Unknown

3.3 Miles

2010

5A

2021


Region 8

Elsinore, Lake

Lake & Reservoir

4802.310000  /  18070202
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

3311 Acres

2014

5A

2027
  • Nutrients
    • Unknown Nonpoint Source

3311 Acres

1994

5B

2005
  • Organic Enrichment/Low Dissolved Oxygen
    • Unknown Nonpoint Source

3311 Acres

1994

5B

2005
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

3311 Acres

2006

5A

2027
  • Toxicity
    • A Source Unknown

3311 Acres

2006

5A

2027


Region 8

Goldenstar Creek

River & Stream

4801.260000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

2.5 Miles

2010

5A

2021


Region 8

Grout Creek

River & Stream

4801.710000  /  18070203
  • Nutrients
    • A Source Unknown

3.6 Miles

1994

5A

2008


Region 8

Huntington Beach State Park

Coastal & Bay Shoreline

4801.110000,4801.140000  /  18070201
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2.1 Miles

2006

5A

2019


Region 8

Huntington Harbour

Bay & Harbor

80111000  /  18070201
  • Chlordane
    • A Source Unknown

221 Acres

2006

5A

2019
  • Copper
    • A Source Unknown

221 Acres

2002

5A

2019
    This listing was made by USEPA.
  • Indicator Bacteria
    • A Source Unknown

221 Acres

2014

5A

2019
    The data shows that the impairment is focused at the 11th Street, Anderson Street Marina, Clubhouse Marina and Sunset Aquatic Park locations. These locations continue to exceed the enterococcus standard, however 2009-10 data seems to show improvement over 1999-2008 data. LOE 7010 appears to be a duplicative subset of LOE 7936 and was not used in making this decision.
  • Lead
    • A Source Unknown

221 Acres

2006

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

221 Acres

2014

5A

2019
    This listing was made by USEPA.
  • Toxicity
    • A Source Unknown

221 Acres

2014

5A

2025


Region 8

Knickerbocker Creek

River & Stream

4801.710000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

2 Miles

2014

5A

2005
    For 2006, pathogens was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.


Region 8

Little Corona Del Mar Beach

Coastal & Bay Shoreline

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

0.26 Miles

2014

5A

2029


Region 8

Los Trancos Creek (Crystal Cove Creek)

River & Stream

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

3.2 Miles

2014

5A

2019
    As a result of revisions to Region 8's Basin Plan, Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. Therefore these Lines of Evidence do not provide sufficient justification for listing. It should be noted that these Enterococcus, Fecal Coliform and Total Coliform LOEs will be retired. Listing is downstream of Pacific Coast Highway.


Region 8

Mill Creek (Prado Area)

River & Stream

4801.210000  /  18070203
  • Indicator Bacteria
    • Dairies

1.6 Miles

2014

5B

2007
  • Nutrients
    • A Source Unknown

1.6 Miles

1996

5A

2019
  • Total Suspended Solids (TSS)
    • A Source Unknown

1.6 Miles

1996

5A

2019


Region 8

Mill Creek Reach 1

River & Stream

4801.580000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

8.1 Miles

2014

5A

2019


Region 8

Morning Canyon Creek

River & Stream

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

1.1 Miles

2010

5A

2021


Region 8

Mountain Home Creek

River & Stream

4801.580000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

3.8 Miles

2014

5A

2019
    Data collected by Regional Board staff in 2012 (outside of the 2014 Listing Cycle data solicitation) support the delisting of Mountain Home Creek for Indicator Bacteria in the next listing cycle.


Region 8

Mountain Home Creek, East Fork

River & Stream

4801.580000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

5.2 Miles

2014

5A

2019


Region 8

Newport Bay, Lower (entire lower bay, including Rhine Channel, Turning Basin and South Lido Channel to east end of H-J Moorings)

Bay & Harbor

80114000  /  18070201
  • Chlordane
    • See TMDL documentation

767 Acres

2006

5B

2013
  • Copper
    • Marinas and Recreational Boating

767 Acres

2006

5A

2019
  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

767 Acres

1990

5B

2013
  • Indicator Bacteria
    • A Source Unknown

767 Acres

2010

5B

2000
    The following LOEs had been incorrectly linked to Lower Newport Bay during the 2010 cycle : 8147, 8148, 8149, 8150, 8151, 8152, 8153, 8154, 8155, 8156, 8157, 8158, 8159, 8160, 8161, 8162, 28355, 28357, 28361, 28367, 28373, 28377, 28379, 28381, 28383. They have not been used in the Final Use Rating in the 2014 cycle and will be retired prior to the next cycle. They have been copied over to Upper Newport Bay (where the sampling points are located) and have new LOE #'s. LOE 26162 was created during the 2010 cycle and incorrectly combined sampling locations in both Upper and Lower Newport Bay. The data in LOE 26162 has been reanalyzed and 2 new LOEs have been created for those data in the proper waterbodies. LOE 26162 is not used in the Final Use Rating in the 2014 cycle and will be retired prior to the next cycle. In the 2010 cycle, the Shellfish Harvest Objective that was used in the LOEs was the Ocean Plan Total Coliform value, rather than the existing Region 8 Basin Plan Objective that was based on Fecal Coliform. While combining the LOEs written using the Ocean Plan Total Coliform objective results in a delisting for the Shellfish Harvest Beneficial Use, analysis of the 2008 -2010 Fecal Coliform data from the Beach Watch program resulted in 7 months of exceedance out of 23 months (where samples were collected) and based on weight of evidence, the decision was made to leave the Shellfish Harvest listing in place for Fecal Coliform.
  • Nutrients
    • A Source Unknown

767 Acres

1992

5B

1999
  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

767 Acres

1990

5B

2013
  • Toxicity
    • A Source Unknown

767 Acres

2014

5A

2019


Region 8

Newport Bay, Upper (Ecological Reserve)

Estuary

80111000  /  18070201
  • Chlordane
    • See TMDL documentation

653 Acres

2006

5B

2013
  • Copper
    • Marinas and Recreational Boating

653 Acres

2006

5A

2007
  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

653 Acres

2006

5B

2013
  • Indicator Bacteria
    • A Source Unknown

653 Acres

2010

5B

2000
    The following LOEs had been incorrectly linked to Upper Newport Bay during the 2010 cycle : 8075, 8076, 8077 and 8078. They have not been used in the Final Use Rating in the 2014 cycle and will be retired prior to the next cycle. They have been copied over to Lower Newport Bay (where the sampling points are located) and have new LOE #'s.
  • Malathion
    • A Source Unknown

653 Acres

2014

5A

2027
  • Nutrients
    • A Source Unknown

653 Acres

2006

5B

1999
  • PCBs (Polychlorinated biphenyls)
    • See TMDL documentation

653 Acres

2006

5B

2013
  • Sedimentation/Siltation
    • Agriculture
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation

653 Acres

2006

5B

1999
  • Toxicity
    • A Source Unknown

653 Acres

2014

5A

2027


Region 8

Newport Slough

River & Stream

4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

0.56 Miles

2014

5A

2021


Region 8

Peters Canyon Channel

River & Stream

4801.110000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

3 Miles

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

3 Miles

2006

5B

2013
    The USEPA approved the Newport Bay Organochlorine compounds TMDL on November 12, 2013 which includes this pollutant (Total DDT-sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) for Peters Canyon Channel.
  • Indicator Bacteria
    • A Source Unknown

3 Miles

2010

5A

2021
    While this Decision was based on a sufficient number of exceedances of the E. coli Single Sample objective, it should be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Enterococcus, Fecal Coliform and Total Coliform LOEs will be retired. Further, the Single Sample objective was only used because of the lack of representative 30-day, 5-sample Geomean values. When representative 30-day, 5-sample Geomean values are collected the Single Sample E. coli LOE will be retired.
  • Malathion
    • A Source Unknown

3 Miles

2014

5A

2027
  • Selenium
    • A Source Unknown

3 Miles

2014

5A

2027
  • Toxaphene
    • See TMDL documentation

3 Miles

2006

5B

2013
  • Toxicity
    • A Source Unknown

3 Miles

2014

5A

2025
  • pH
    • A Source Unknown

3 Miles

2010

5A

2021


Region 8

Prado Basin Management Zone

Wetland, Freshwater

4801.210000,4801.250000  /  18070203
  • pH
    • A Source Unknown

11105 Acres

2014

5A

2027


Region 8

Prado Park Lake

Lake & Reservoir

4801.210000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

59 Acres

2014

5B

2007
    As a result of revisions to Region 8's Basin Plan, Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. It should be noted that these Enterococcus, Fecal Coliform and Total Coliform LOEs will be retired.
  • Nutrients
    • A Source Unknown

59 Acres

1998

5A

2019


Region 8

Rathbone (Rathbun) Creek

River & Stream

4801.710000  /  18070203
  • Cadmium
    • A Source Unknown

4.8 Miles

2010

5A

2021
  • Copper
    • A Source Unknown

4.8 Miles

2010

5A

2021
  • Nutrients
    • A Source Unknown

4.8 Miles

1994

5A

2008
  • Sedimentation/Siltation
    • A Source Unknown

4.8 Miles

1994

5A

2006


Region 8

Rhine Channel

Bay & Harbor

80114000  /  18070201
  • Copper
    • A Source Unknown

20 Acres

2006

5A

2019
  • Lead
    • A Source Unknown

20 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

20 Acres

2006

5A

2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

20 Acres

2006

5A

2019
  • Toxicity
    • A Source Unknown

20 Acres

2014

5A

2019
  • Zinc
    • A Source Unknown

20 Acres

2006

5A

2019


Region 8

San Diego Creek Reach 1

River & Stream

4801.110000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

7.8 Miles

2014

5A

2027
  • DDT (Dichlorodiphenyltrichloroethane)
    • See TMDL documentation

7.8 Miles

2014

5B

2013
    The USEPA approved the Newport Bay Organochlorine compounds TMDL on November 12, 2013 which includes this pollutant (Total DDT-sum of 4,4'- and 2,4'- isomers of DDT, DDE, and DDD) for San Diego Creek. The data used for the TMDL assessment includes additional data and may use different assessment guidelines than those used in the integrated report. Nonetheless, it is important to note that this pollutant is being addressed by an USEPA approved TMDL.
  • Indicator Bacteria
    • A Source Unknown

7.8 Miles

2014

5A

2019
    While this Decision was based on a sufficient number of exceedances the of E. coli Single Sample objective, it should be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Enterococcus, Fecal Coliform and Total Coliform LOEs will be retired. Further, the Single Sample objective was only used because of the lack of representative 30-day, 5-sample Geomean values, as per the Region 8 Basin Plan (2016 update) on page 4-17, footnote 3. When representative 30-day, 5-sample Geomean values are collected the Single Sample E. coli LOE will be retired.
  • Malathion
    • A Source Unknown

7.8 Miles

2014

5A

2027
  • Nutrients
    • A Source Unknown

7.8 Miles

1996

5B

1999
  • Sedimentation/Siltation
    • A Source Unknown

7.8 Miles

1996

5B

1999
  • Selenium
    • A Source Unknown

7.8 Miles

2006

5A

2007
  • Toxaphene
    • See TMDL documentation

7.8 Miles

2006

5B

2013
  • Toxicity
    • A Source Unknown

7.8 Miles

2014

5A

2025


Region 8

San Diego Creek Reach 2

River & Stream

4801.110000  /  18070201
  • Benthic Community Effects
    • A Source Unknown

5 Miles

2014

5A

2027
  • Indicator Bacteria
    • A Source Unknown

5 Miles

2010

5A

2021
    While this Decision was based on a sufficient number of exceedances the of E. coli Single Sample objective, it should be noted that when representative 30-day, 5-sample Geomean values are collected the Single Sample E. coli LOE will be retired.
  • Nutrients
    • Agriculture
    • Groundwater Loadings
    • Urban Runoff/Storm Sewers

5 Miles

1996

5B

1999
  • Sedimentation/Siltation
    • Agriculture
    • Channel Erosion
    • Construction/Land Development
    • Erosion/Siltation

5 Miles

1996

5B

1999
  • Toxicity
    • Unknown Nonpoint Source

5 Miles

2014

5B

2004
    Although the diazinon/chlorpyrifos TMDL was developed and implemented to also address unknown toxicity; new data assessed suggests that the pollutants addressed in this TMDL were not the only pollutants causing toxicity. The toxicity LOE (82244) states that the toxicity tests that exhibited significant toxicity included Ceriodaphnia reproduction and Hyallela survival. Toxicity to hyallela could suggest pyrethroid-related toxicity.


Region 8

San Timoteo Creek Reach 1A (Santa Ana River to Confluence to Barton Rd)

River & Stream

4801.520000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5A

2029
    This Decision was based on a sufficient number of exceedances of the E. coli Geomean objective to trigger a 'Not Supporting' listing. The Region 8 Basin Plan states that where a representative E. coli geometric mean can be calculated, single sample maximum values shall not be used for assessment (page 4-17, footnote 3), therefore the E. coli single sample maximum objective LOE was not used in the Final Use Rating. It should also be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Total Coliform LOEs will be retired.


Region 8

San Timoteo Creek Reach 3 (Yucaipa Creek to Headwaters)

River & Stream

4801.610000,4801.620000,4801.620000  /  18070202
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

2029
    This Decision was based on a sufficient number of exceedances of the E. coli Geomean objective to trigger a 'Not Supporting' listing. The Region 8 Basin Plan states that where a representative E. coli geometric mean can be calculated, single sample maximum values shall not be used for assessment (page 4-17, footnote 3), therefore the E. coli single sample maximum objective LOE was not used in the Final Use Rating. It should also be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Total Coliform LOEs will be retired.


Region 8

San Timoteo River Reach 2 (Gage at San Timoteo to confluence with Yucaipa Creek)

River & Stream

4801.610000,4801.610000,4801.610000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

3.9 Miles

2014

5A

2029
    This Decision was based on a sufficient number of exceedances of the E. coli Geomean objective to trigger a 'Not Supporting' listing. The Region 8 Basin Plan states that where a representative E. coli geometric mean can be calculated, single sample maximum values shall not be used for assessment (page 4-17, footnote 3), therefore the E. coli single sample maximum objective LOE was not used in the Final Use Rating. It should also be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Total Coliform LOEs will be retired.


Region 8

Santa Ana River Reach 6

River & Stream

4801.570000,4801.720000  /  18070203
  • Cadmium
    • A Source Unknown

23 Miles

2010

5A

2021
  • Copper
    • A Source Unknown

23 Miles

2010

5A

2021
  • Lead
    • A Source Unknown

23 Miles

2010

5A

2021


Region 8

Santa Ana River, Reach 3

River & Stream

4801.210000,4801.210000,4801.210000,4801.210000,4801.270000  /  18070203
  • Copper
    • A Source Unknown

28 Miles

2010

5A

2023
  • Indicator Bacteria
    • Dairies

28 Miles

2014

5B

2007
    It should be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Enterococcus, Fecal Coliform and Total Coliform LOEs will be retired. Further, the Single Sample objective was presented only because of the lack of representative 30-day, 5-sample Geomean values, as per the Region 8 Basin Plan (2016 update) on page 4-17, footnote 3. When representative 30-day, 5-sample Geomean values are collected the Single Sample E. coli LOE will be retired.
  • Lead
    • A Source Unknown

28 Miles

2010

5A

2023


Region 8

Santa Ana River, Reach 4

River & Stream

4801.270000,4801.440000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

7.4 Miles

2014

5A

2019


Region 8

Santiago Creek, Reach 4

River & Stream

4801.120000  /  18070203
  • Salinity/TDS/Chlorides
    • A Source Unknown

11 Miles

1996

5A

2019
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2027


Region 8

Seal Beach

Coastal & Bay Shoreline

4405.120000,4405.150000,4412.100000,4801.110000  /  18070201
  • Indicator Bacteria
    • A Source Unknown

0.53 Miles

2014

5A

2019
    Impaired 50 yards around drain at 1st Street.
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.53 Miles

2006

5A

2019


Region 8

Serrano Creek

River & Stream

4801.110000  /  18070201
  • Ammonia (Unionized)
    • A Source Unknown

7.4 Miles

2010

5A

2021
  • Benthic Community Effects
    • A Source Unknown

7.4 Miles

2014

5A

2027
  • Indicator Bacteria
    • A Source Unknown

7.4 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

7.4 Miles

2014

5A

2027
  • pH
    • A Source Unknown

7.4 Miles

2010

5A

2021


Region 8

Silverado Creek

River & Stream

4801.120000  /  18070203
  • Salinity/TDS/Chlorides
    • A Source Unknown

11 Miles

1996

5A

2019
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2027


Region 8

Summit Creek

River & Stream

80171000  /  18070203
  • Nutrients
    • A Source Unknown

1.5 Miles

1998

5A

2008


Region 8

Talbert Channel (Orange County)

River & Stream

4801.110000  /  18070201
  • Toxicity
    • A Source Unknown

5.5 Miles

2014

5A

2029


Region 8

Warm Creek

River & Stream

4801.440000,4801.520000  /  18070203
  • Indicator Bacteria
    • A Source Unknown

7.1 Miles

2014

5A

2029
    This Decision was based on a sufficient number of exceedances of the E. coli Geomean objective to trigger a 'Not Supporting' listing. The Region 8 Basin Plan states that where a representative E. coli geometric mean can be calculated, single sample maximum values shall not be used for assessment (page 4-17, footnote 3), therefore the E. coli single sample maximum objective LOE was not used in the Final Use Rating. It should also be noted that Enterococcus, Fecal Coliform and Total Coliform objectives no longer apply to the REC 1 Beneficial Use for fresh waters in Region 8. As such the Total Coliform LOEs will be retired. In addition, as representative E. coli geometric means exist, the E. coli single sample maximum LOE will also be retired.


Region 9

Adobe Creek (Riverside County)

River & Stream

90221000  /  18070302
  • Bifenthrin
    • A Source Unknown

0.96 Miles

2020

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

0.96 Miles

2020

5A

2033
  • Esfenvalerate/Fenvalerate
    • A Source Unknown

0.96 Miles

2020

5A

2033
  • Indicator Bacteria
    • A Source Unknown

0.96 Miles

2014

5A

2033
  • Iron
    • A Source Unknown

0.96 Miles

2020

5A

2033
  • Manganese
    • A Source Unknown

0.96 Miles

2020

5A

2033
  • Mercury
    • A Source Unknown

0.96 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

0.96 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

0.96 Miles

2020

5A

2033
  • Turbidity
    • A Source Unknown

0.96 Miles

2020

5A

2033


Region 9

Agua Hedionda Creek

River & Stream

90431000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

7 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

7 Miles

2014

5A

2029
  • Chlorpyrifos
    • A Source Unknown

7 Miles

2014

5A

2029
  • Cyfluthrin
    • A Source Unknown

7 Miles

2014

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

7 Miles

2014

5A

2033
  • Cypermethrin
    • A Source Unknown

7 Miles

2014

5A

2029
  • Deltamethrin
    • A Source Unknown

7 Miles

2014

5A

2033
  • Indicator Bacteria
    • A Source Unknown

7 Miles

2014

5A

2019
  • Malathion
    • A Source Unknown

7 Miles

2014

5A

2029
  • Manganese
    • A Source Unknown

7 Miles

2006

5A

2019
  • Nitrogen
    • A Source Unknown

7 Miles

2014

5A

2019
  • Phosphorus
    • A Source Unknown

7 Miles

2010

5A

2019
  • Pyrethroids
    • A Source Unknown

7 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown

7 Miles

2006

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

7 Miles

2002

5A

2019
  • Toxicity
    • A Source Unknown

7 Miles

2010

5A

2019
  • Turbidity
    • A Source Unknown

7 Miles

2024

5A

2033


Region 9

Aliso Creek

River & Stream

90113000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

19 Miles

2010

5A

2025
  • Indicator Bacteria
    • A Source Unknown

19 Miles

2002

5B

2011
    This listing for indicator bacteria applies to the Aliso Creek mainstem and all the major tributaries of Aliso Creek which are Sulphur Creek, Wood Canyon, Aliso Hills Canyon, Dairy Fork, and English Canyon.
  • Malathion
    • A Source Unknown

19 Miles

2014

5A

2029
  • Nitrogen
    • A Source Unknown

19 Miles

2014

5A

2019
  • Phosphorus
    • A Source Unknown

19 Miles

2002

5A

2019
    This listing for phosphorus applies to the Aliso Creek mainstem and all the major tributaries of Aliso Creek which are Sulphur Creek, Wood Canyon, Aliso Hills Canyon, Dairy Fork, and English Canyon.
  • Selenium
    • A Source Unknown

19 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

19 Miles

2002

5A

2019
    This listing for toxicity applies to the Aliso Creek mainstem and all the major tributaries of Aliso Creek which are Sulphur Creek, Wood Canyon, Aliso Hills Canyon, Dairy Fork, and English Canyon.


Region 9

Aliso Creek (mouth)

Estuary

4901.130000, 4901.140000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.04 Acres

1990

5B

2011
    LOEs 30623, 30625, 30614, 30616, 30619, and 30620 will be linked to this listing decision in the next cycle.
  • Toxicity
    • A Source Unknown

0.04 Acres

2014

5A

2027
    Due to mapping issues, historical LOE # 21397 will be linked to this decision for the listing of toxicity in the next cycle.


Region 9

Alpine Creek

River & Stream

90733000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

2.2 Miles

2014

5A

2029
    The indicator bacteria listed include enterococcus and fecal coliform


Region 9

Alvarado Creek

River & Stream

90711000  /  18070304
  • Nitrogen
    • A Source Unknown

5.1 Miles

2010

5A

2023
  • Selenium
    • A Source Unknown

5.1 Miles

2010

5A

2021


Region 9

Aqua Hedionda Lagoon

Estuary

4904.310000  /  18070303
  • Toxicity
    • A Source Unknown

0.91 Acres

2014

5A

2027
    The data for this listing decision pre-dates the Sediment Quality Objectives and will be re-assessed in the future in accordance with the Sediment Quality Objectives which requires a multiple line of evidence analysis of chemistry, toxicity and biological data. The current impairment due to Toxicity in sediment is based on data collected in the eastern portion of the lagoon. Data collected from the outer and middle portions of the lagoon do not indicate impairment. This waterbody may be divided into two segments, the eastern lagoon and the western lagoon. This waterbody segmentation could be proposed as part of a future Integrated Report cycle and should be based on an analysis of land use and hydrology consistent with Section 6.1.5.4 of the Listing Policy.


Region 9

Arroyo Trabuco Creek, Lower

River & Stream

4901.210000,4901.220000,4901.230000,4901.270000  / 
  • Toxicity
    • A Source Unknown

17 Miles

2020

5A

2019


Region 9

Arroyo Trabuco Creek, Upper

River & Stream

4901.220000  / 
  • Toxicity
    • A Source Unknown

6.9 Miles

2020

5A

2019


Region 9

Barrett Lake

Lake & Reservoir

91130000  /  18070305
  • Color
    • A Source Unknown

125 Acres

2006

5A

2019
  • Manganese
    • A Source Unknown

125 Acres

2006

5A

2019
  • Perchlorate
    • A Source Unknown

125 Acres

2010

5A

2019
  • Phosphorus
    • A Source Unknown

125 Acres

2010

5A

2023
  • Total Nitrogen as N
    • A Source Unknown

125 Acres

2010

5A

2019
  • pH
    • A Source Unknown

125 Acres

2006

5A

2019


Region 9

Batiquitos Lagoon

Coastal & Bay Shoreline

4904.310000,4904.400000,4904.510000  /  18070303
  • Toxicity
    • A Source Unknown

400 Miles

2014

5A

2027


Region 9

Bell Canyon Creek

River & Stream

90120000  /  18070301
  • Toxicity
    • A Source Unknown

14 Miles

2014

5A

2027


Region 9

Buena Creek

River & Stream

90432000  /  18070303
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

4.8 Miles

2006

5A

2019
  • Indicator Bacteria
    • A Source Unknown

4.8 Miles

2014

5A

2029
    The indicator bacteria listed for include enterococcus and fecal coliform
  • Nitrate and Nitrite
    • A Source Unknown

4.8 Miles

2006

5A

2019
  • Nitrogen
    • A Source Unknown

4.8 Miles

2014

5A

2023
  • Phosphorus
    • A Source Unknown

4.8 Miles

2010

5A

2023
  • Sulfates
    • A Source Unknown

4.8 Miles

2024

5A

2033


Region 9

Buena Vista Creek

River & Stream

90421000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

11 Miles

2014

5A

2027
  • Cyfluthrin
    • A Source Unknown

11 Miles

2020

5A

2033
  • Cypermethrin
    • A Source Unknown

11 Miles

2014

5A

2033
  • Phosphorus
    • A Source Unknown

11 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

11 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown

11 Miles

2010

5A

2019
    The exceedance rate in LOE 6549 should be 4 over 4, and this change will be made in the next cycle.
  • Total Dissolved Solids
    • A Source Unknown

11 Miles

2024

5A

2033
  • Toxicity
    • A Source Unknown

11 Miles

2014

5A

2019


Region 9

Buena Vista Lagoon

Estuary

90421000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

202 Acres

1996

5A

2008
  • Nutrients
    • A Source Unknown

202 Acres

1996

5A

2019
    Estimated size of impairment is 150 acres located in upper portion of lagoon.
  • Sedimentation/Siltation
    • A Source Unknown

202 Acres

1996

5A

2019
  • Toxicity
    • A Source Unknown

202 Acres

2014

5A

2027


Region 9

Campo Creek

River & Stream

91182000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

6.3 Miles

2014

5A

2029
    The indicator bacteria listed is enterococcus.
  • Phosphorus
    • A Source Unknown

6.3 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

6.3 Miles

2020

5A

2033


Region 9

Carmel Valley Creek

River & Stream

4906.100000  / 
  • Bifenthrin
    • A Source Unknown

2 Miles

2020

5A

2033
  • Oxygen, Dissolved
    • A Source Unknown

2 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

2 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

2 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

2 Miles

2020

5A

2033


Region 9

Carroll Canyon

River & Stream

4906.100000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

13 Miles

2010

5A

2025
  • Cyfluthrin
    • A Source Unknown

13 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

13 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

13 Miles

2014

5A

2027


Region 9

Chocolate Creek

River & Stream

4907.310000,4907.330000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

4.7 Miles

2014

5A

2029
    The indicator bacteria listed include enterococcus and fecal coliform
  • Nitrogen
    • A Source Unknown

4.7 Miles

2010

5A

2025
  • Phosphorus
    • A Source Unknown

4.7 Miles

2010

5A

2023


Region 9

Chollas Creek

River & Stream

90822000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

3.5 Miles

2010

5A

2033
  • Bifenthrin
    • A Source Unknown

3.5 Miles

2014

5A

2027
  • Copper
    • A Source Unknown

3.5 Miles

1996

5B

2008
  • Cyfluthrin
    • A Source Unknown

3.5 Miles

2014

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

3.5 Miles

2014

5A

2033
  • Cypermethrin
    • A Source Unknown

3.5 Miles

2014

5A

2025
  • Dichlorvos
    • A Source Unknown

3.5 Miles

2020

5A

2033
  • Indicator Bacteria
    • A Source Unknown

3.5 Miles

2002

5B

2011
  • Lead
    • A Source Unknown

3.5 Miles

1996

5B

2008
  • Malathion
    • A Source Unknown

3.5 Miles

2014

5A

2025
  • Nitrogen
    • A Source Unknown

3.5 Miles

2014

5A

2019
  • Oxygen, Dissolved
    • A Source Unknown

3.5 Miles

2020

5A

2033
  • Permethrin
    • A Source Unknown

3.5 Miles

2014

5A

2033
  • Phosphorus
    • A Source Unknown

3.5 Miles

2010

5A

2019
  • Pyrethroids
    • A Source Unknown

3.5 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

3.5 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

3.5 Miles

2020

5A

2033
  • Trash
    • A Source Unknown

3.5 Miles

2010

5A

2021
  • Zinc
    • A Source Unknown
    • Agriculture-grazing

3.5 Miles

1996

5B

2033


Region 9

Cloverdale Creek

River & Stream

90532000  /  18070304
  • Nitrogen
    • A Source Unknown

1.2 Miles

2014

5A

2023
  • Phosphorus
    • A Source Unknown

1.2 Miles

2002

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

1.2 Miles

2002

5A

2019


Region 9

Cottonwood Creek (San Marcos Creek watershed)

River & Stream

4904.510000,4904.610000  /  18070303
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Other
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

1.5 Miles

2014

5A

2025
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

1.5 Miles

2006

5A

2019
  • Nitrogen
    • A Source Unknown

1.5 Miles

2014

5A

2023
  • Phosphorus
    • A Source Unknown

1.5 Miles

2006

5A

2019
  • Selenium
    • A Source Unknown

1.5 Miles

2010

5A

2019
  • Toxicity
    • A Source Unknown

1.5 Miles

2014

5A

2019


Region 9

Cottonwood Creek below Barrett Reservoir

River & Stream

4911.230000  / 
  • Selenium
    • A Source Unknown

12 Miles

2020

5A

2019


Region 9

Couser Canyon Creek

River & Stream

90321000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

3.4 Miles

2014

5A

2029
    The indicator bacteria listed is enterococcus for REC-1.


Region 9

Cristianitos Creek

River & Stream

90140000  /  18070301
  • Cadmium
    • A Source Unknown

6.7 Miles

2014

5A

2029
  • Indicator Bacteria
    • A Source Unknown

6.7 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and E. coli.
  • Selenium
    • A Source Unknown

6.7 Miles

2014

5A

2029


Region 9

Dana Point Harbor

Bay & Harbor

4901.140000, 4901.270000, 4901.310000  /  18070301
  • Copper
    • A Source Unknown
    • Marinas and Recreational Boating
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

16 Acres

2010

5A

2019
  • Indicator Bacteria
    • A Source Unknown

16 Acres

2002

5A

2025
    The listed indicator bacteria is total coliform for SHELL.
  • Oxygen, Dissolved
    • A Source Unknown

16 Acres

2014

5A

2029
  • Toxicity
    • A Source Unknown

16 Acres

2010

5A

2021
  • Zinc
    • A Source Unknown

16 Acres

2010

5A

2023


Region 9

De Luz Creek

River & Stream

90221000  /  18070302
  • Iron
    • A Source Unknown

14 Miles

2006

5A

2019
  • Manganese
    • A Source Unknown

14 Miles

2006

5A

2019
  • Nitrogen
    • A Source Unknown

14 Miles

2024

5A

2025
  • Sulfates
    • A Source Unknown

14 Miles

2024

5A

2019


Region 9

De Luz Creek, unnamed tributary at De Luz Murrieta Road

River & Stream

90221000  /  18070302
  • Chloride
    • A Source Unknown

8.9 Miles

2020

5A

2033
  • Sulfates
    • A Source Unknown

8.9 Miles

2020

5A

2033


Region 9

Diamond Valley Lake

Lake & Reservoir

4902.350000,4902.360000  / 
  • Mercury
    • A Source Unknown

4083 Acres

2020

5A

2033


Region 9

East Channel Creek

River & Stream

90311000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

2.2 Miles

2014

5A

2029
    The indicator bacteria listed is enterococcus.


Region 9

El Capitan Lake

Lake & Reservoir

4907.150000,4907.310000  /  18070304
  • Color
    • A Source Unknown

1479 Acres

2006

5A

2019
  • Manganese
    • A Source Unknown

1479 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

1479 Acres

2024

5A

2033
  • Phosphorus
    • A Source Unknown

1479 Acres

2010

5A

2021
  • Total Nitrogen as N
    • A Source Unknown

1479 Acres

2010

5A

2021


Region 9

Encinitas Creek

River & Stream

4904.510000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

4.6 Miles

2010

5A

2025
  • Nitrogen
    • A Source Unknown

4.6 Miles

2010

5A

2033
  • Phosphorus
    • A Source Unknown

4.6 Miles

2006

5A

2019
  • Selenium
    • A Source Unknown

4.6 Miles

2010

5A

2019
  • Toxicity
    • A Source Unknown

4.6 Miles

2010

5A

2019


Region 9

English Canyon

River & Stream

90113000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

3.6 Miles

2014

5A

2025
  • Benzo[b]fluoranthene
    • A Source Unknown

3.6 Miles

2006

5A

2019
  • Dieldrin
    • A Source Unknown

3.6 Miles

2006

5A

2019
  • Phosphorus
    • A Source Unknown

3.6 Miles

2010

5A

2023
  • Selenium
    • A Source Unknown

3.6 Miles

2010

5A

2019
  • Total Nitrogen as N
    • A Source Unknown

3.6 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

3.6 Miles

2014

5A

2019


Region 9

Escondido Creek

River & Stream

90462000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

26 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

26 Miles

2014

5A

2027
  • Cyfluthrin
    • A Source Unknown

26 Miles

2014

5A

2033
  • Cypermethrin
    • A Source Unknown

26 Miles

2014

5A

2033
  • DDT (Dichlorodiphenyltrichloroethane)
    • A Source Unknown

26 Miles

2006

5A

2019
  • Indicator Bacteria
    • A Source Unknown

26 Miles

2014

5A

2019
  • Iron
    • A Source Unknown

26 Miles

2014

5A

2033
  • Manganese
    • A Source Unknown

26 Miles

2006

5A

2019
  • Nitrogen
    • A Source Unknown

26 Miles

2014

5A

2019
  • Phosphate
    • A Source Unknown

26 Miles

2006

5A

2019
  • Phosphorus
    • A Source Unknown

26 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

26 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown

26 Miles

2006

5A

2019
  • Sulfates
    • A Source Unknown

26 Miles

2006

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

26 Miles

2006

5A

2019
  • Toxicity
    • A Source Unknown

26 Miles

2010

5A

2019
  • Turbidity
    • A Source Unknown

26 Miles

2024

5A

2033


Region 9

Eucalyptus Hills Creek

River & Stream

90712000  /  18070304
  • Diazinon
    • A Source Unknown

2.8 Miles

2014

5A

2025
  • Indicator Bacteria
    • Urban Runoff/Storm Sewers

2.8 Miles

2014

5A

2027


Region 9

Famosa Slough and Channel

Estuary

90711000  /  18070304
  • Eutrophic
    • Urban Runoff/Storm Sewers

32 Acres

1990

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

32 Acres

2020

5A

2033


Region 9

Felicita Creek

River & Stream

90523000  /  18070304
  • 1,4-Dioxane
    • Hazardous Waste

0.92 Miles

2014

5A

2027
    This listing decision is for "North Felicita Creek". Due to mapping issues, "North Felicita Creek" will be generated in the database next cycle.
  • Aluminum
    • A Source Unknown

0.92 Miles

2006

5A

2019
  • Indicator Bacteria
    • A Source Unknown

0.92 Miles

2014

5A

2025
    The indicator bacteria listed is enterococcus for REC-1.
  • Tetrachloroethylene/PCE
    • Industrial Point Sources

0.92 Miles

2014

5A

2027
    This listing decision is for North Felicita Creek. Due to mapping issue in database, the waterbody segment of "North Fecilita Creek" will be generated in next cycle.
  • Total Dissolved Solids
    • A Source Unknown

0.92 Miles

2002

5A

2019
  • Trichloroethylene/TCE
    • Industrial Point Sources

0.92 Miles

2014

5A

2027
    This listing decision is for "North Felicita Creek". Due to mapping issues, "North Felicita Creek" will be generated in the database next cycle.


Region 9

Forester Creek

River & Stream

90712000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

6.4 Miles

2014

5A

2025
  • Chloride
    • A Source Unknown

6.4 Miles

2020

5A

2033
  • Indicator Bacteria
    • A Source Unknown

6.4 Miles

2014

5B

2011
  • Nitrogen
    • A Source Unknown

6.4 Miles

2010

5A

2029
  • Oxygen, Dissolved
    • A Source Unknown

6.4 Miles

2006

5A

2033
  • Phosphorus
    • A Source Unknown

6.4 Miles

2006

5A

2019
  • Selenium
    • A Source Unknown

6.4 Miles

2010

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

6.4 Miles

2002

5A

2019
    Impairment Located at lower 1 mile.
  • Turbidity
    • A Source Unknown

6.4 Miles

2024

5A

2033


Region 9

Gopher Creek

River & Stream

90331000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

4.4 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and fecal coliform.


Region 9

Green Canyon Creek

River & Stream

90312000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

5.2 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus, fecal coliform, and total coliform.


Region 9

Green Valley Creek

River & Stream

90521000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

0.98 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

0.98 Miles

2014

5A

2025
  • Chloride
    • A Source Unknown

0.98 Miles

2006

5A

2019
  • Chlorpyrifos
    • A Source Unknown

0.98 Miles

2014

5A

2025
  • Cyfluthrin
    • A Source Unknown

0.98 Miles

2020

5A

2033
  • Manganese
    • A Source Unknown

0.98 Miles

2006

5A

2019
  • Pentachlorophenol (PCP)
    • A Source Unknown

0.98 Miles

2006

5A

2019
  • Pyrethroids
    • A Source Unknown

0.98 Miles

2020

5A

2033
  • Sulfates
    • A Source Unknown

0.98 Miles

2002

5A

2019
  • Total Nitrogen as N
    • A Source Unknown

0.98 Miles

2010

5A

2025


Region 9

Guajome Lake

Lake & Reservoir

90311000  /  18070303
  • Eutrophic
    • A Source Unknown

33 Acres

1996

5A

2019


Region 9

Harbison Canyon

River & Stream

90923000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

3.5 Miles

2014

5A

2025
    The indicator bacteria listed is enterococcus for REC-1.


Region 9

Jamacha Creek

River & Stream

90921000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

1.8 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and total coliform for REC-1.


Region 9

Jamul Creek

River & Stream

91033000  /  18070304
  • Toxicity
    • A Source Unknown

10 Miles

2010

5A

2019


Region 9

Keys Creek

River & Stream

90312000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

13 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and fecal coliform for REC-1
  • Nitrogen
    • A Source Unknown

13 Miles

2010

5A

2025
  • Phosphorus
    • A Source Unknown

13 Miles

2010

5A

2033
  • Selenium
    • A Source Unknown

13 Miles

2010

5A

2019


Region 9

Kit Carson Creek

River & Stream

4905.210000,4905.240000  /  18070304
  • Pentachlorophenol (PCP)
    • A Source Unknown

4.8 Miles

2006

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

4.8 Miles

2002

5A

2019


Region 9

La Zanja Canyon

River & Stream

90511000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

4.5 Miles

2014

5A

2025
    The indicator bacteria listed is enterococcus for REC-1.


Region 9

Laguna Canyon Channel

River & Stream

90112000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

1.6 Miles

2014

5A

2025
  • Indicator Bacteria
    • A Source Unknown

1.6 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and fecal coliform for REC-1.
  • Phosphorus
    • A Source Unknown

1.6 Miles

2010

5A

2023
  • Total Nitrogen as N
    • A Source Unknown

1.6 Miles

2010

5A

2025
  • Toxicity
    • A Source Unknown

1.6 Miles

2010

5A

2019


Region 9

Lake Hodges

Lake & Reservoir

4905.110000,4905.210000  /  18070304
  • Color
    • A Source Unknown

588 Acres

2002

5A

2019
  • Manganese
    • A Source Unknown

588 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

588 Acres

1800

5A

2021
  • Nitrogen
    • A Source Unknown

588 Acres

2002

5A

2019
  • Phosphorus
    • A Source Unknown

588 Acres

2002

5A

2013
  • Turbidity
    • A Source Unknown

588 Acres

2006

5A

2019
  • pH
    • A Source Unknown

588 Acres

2006

5A

2019


Region 9

Lake Jennings

Lake & Reservoir

4907.120000  / 
  • Mercury
    • A Source Unknown

158 Acres

2020

5A

2033


Region 9

Lake San Marcos

Lake & Reservoir

4904.520000,4904.520000,4904.520000  /  18070303
  • Ammonia as Nitrogen
    • A Source Unknown

71 Acres

2006

5A

2019
  • Copper
    • A Source Unknown

71 Acres

2014

5A

2027
  • Nutrients
    • A Source Unknown

71 Acres

2006

5A

2019
  • Phosphorus
    • A Source Unknown

71 Acres

2006

5A

2019


Region 9

Live Oak Creek (San Diego County)

River & Stream

90312000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

2.5 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus, fecal coliform, and total coliform.


Region 9

Loma Alta Creek

River & Stream

90410000  /  18070303
  • Benthic Community Effects
    • A Source Unknown
    • Contaminated Sediments
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

7.8 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

7.8 Miles

2014

5A

2027
  • Cyfluthrin
    • A Source Unknown

7.8 Miles

2020

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

7.8 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

7.8 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

7.8 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown

7.8 Miles

2010

5A

2019
    In LOE 8875, the exceedance rate should be 4 over 4, and this change will be updated in next cycle of assessment.
  • Toxicity
    • A Source Unknown

7.8 Miles

2010

5A

2019


Region 9

Loma Alta Slough

Estuary

4902.110000, 4903.110000, 4904.100000, 4904.100000, 4904.210000, 4904.310000  /  18070303
  • Eutrophic
    • Urban Runoff/Storm Sewers

1.1 Acres

1996

5A

2027
    On June 26, 2014 The San Diego Regional Water Quality Control Board (San Diego Water Board) adopted Resolution No. R9-2014-0020 - Resolution of Commitment to an Alternative Process for Achieving Water Quality Objectives for Biostimulatory Substances in Loma Alta Slough which sets the path forward to eliminate the excessive algal growth in Loma Alta Slough in Oceanside by using an existing regional stormwater permit designed to provide safe, cleaner water for the region. With this action, the San Diego Water Board chose a practical, measureable, and timely approach for directing actions to remedy the Slough through a productive collaboration with the community to address an important water quality challenge.
  • Indicator Bacteria
    • Urban Runoff/Storm Sewers

1.1 Acres

1996

5A

2027


Region 9

Long Canyon Creek (Lower Sweetwater Watershed)

River & Stream

90912000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

1.4 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus.


Region 9

Long Canyon Creek (tributary to Murrieta Creek)

River & Stream

90232000  /  18070302
  • Chlorpyrifos
    • A Source Unknown

8.3 Miles

2010

5A

2019
  • Iron
    • A Source Unknown

8.3 Miles

2010

5A

2019
  • Manganese
    • A Source Unknown

8.3 Miles

2010

5A

2019
  • Nitrogen
    • A Source Unknown

8.3 Miles

2014

5A

2023
  • Phosphorus
    • A Source Unknown

8.3 Miles

2010

5A

2023


Region 9

Los Coches Creek

River & Stream

4907.120000,4907.140000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

9.4 Miles

2014

5A

2027
  • Nitrogen
    • A Source Unknown

9.4 Miles

2010

5A

2027
  • Phosphorus
    • A Source Unknown

9.4 Miles

2010

5A

2023
  • Selenium
    • A Source Unknown

9.4 Miles

2010

5A

2019


Region 9

Los Penasquitos Creek

River & Stream

90610000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Contaminated Sediments
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

12 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

12 Miles

2014

5A

2027
  • Cyfluthrin
    • A Source Unknown

12 Miles

2014

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

12 Miles

2014

5A

2033
  • Cypermethrin
    • A Source Unknown

12 Miles

2014

5A

2033
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

2019
  • Nitrogen
    • A Source Unknown

12 Miles

2014

5A

2019
  • Permethrin
    • A Source Unknown

12 Miles

2014

5A

2033
  • Phosphate
    • A Source Unknown

12 Miles

2006

5A

2019
  • Phosphorus
    • A Source Unknown

12 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

12 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

12 Miles

2006

5A

2019
  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

2023
    See Decision numbers 43909 , 47497 , 47501 , 47517 , 47555 for potential pollutant sources of water toxicity.


Region 9

Los Penasquitos Lagoon

Estuary

90610000  /  18070304
  • Sedimentation/Siltation
    • A Source Unknown
    • Channel Erosion
    • Channelization
    • Erosion/Siltation
    • Flow Alteration/Regulation/Modification
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Streambank Modification/Destabilization
    • Urban Runoff/Storm Sewers

469 Acres

1992

5B

2014
    On June 13, 2014, the San Diego Water Board conducted a public hearing and adopted the Resolution No. R9-2012-0033 which amended the Basin Plan to include the Los Peñasquitos Sediment TMDL. The State Water Resources Control Board adopted Resolution No. 2014-0001 on January 21, 2014 to incorporate the Los Peñasquitos Sediment TMDL into the Basin Plan. The Office of Administrative Law approved the Los Peñasquitos Sediment TMDL Basin Plan Amendment on July 14, 2014. The USEPA approved the Los Peñasquitos Sediment TMDL Basin Plan Amendment on October 30, 2014.
  • Toxicity
    • A Source Unknown

469 Acres

2014

5A

2027


Region 9

Loveland Reservoir

Lake & Reservoir

90931000  /  18070304
  • Aluminum
    • A Source Unknown

420 Acres

2006

5A

2019
  • Manganese
    • A Source Unknown

420 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

420 Acres

2024

5A

2033
  • Oxygen, Dissolved
    • A Source Unknown

420 Acres

2006

5A

2019
  • pH
    • A Source Unknown

420 Acres

2006

5A

2019
    This listing was made by USEPA for 2006.


Region 9

Lusardi Creek

River & Stream

4905.110000,4905.120000  / 
  • Phosphorus
    • A Source Unknown

5.3 Miles

2020

5A

2033


Region 9

Margarita Glen

River & Stream

4902.220000  / 
  • Phosphorus
    • A Source Unknown

1.1 Miles

2020

5A

2033
  • Sulfates
    • A Source Unknown

1.1 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

1.1 Miles

2020

5A

2033


Region 9

Mexican Canyon Creek (eastern tributary to Sweetwater River, Upper)

River & Stream

90921000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

4.5 Miles

2014

5A

2027
    The indicator bacterial listed include enterococcus.


Region 9

Mexican Canyon Creek (western tributary to Sweetwater River, Upper)

River & Stream

90921000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

3.2 Miles

2014

5A

2027
    The indicator bacteria listed include enterococcus.


Region 9

Mission Bay

Coastal & Bay Shoreline

4906.300000,4906.400000,4906.500000,4906.600000,4906.700000,4906.800000  /  0000000
  • Mercury
    • A Source Unknown
    • Atmospheric Deposition

2035 Miles

2014

5A

2027
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

2035 Miles

2014

5A

2027


Region 9

Mission Bay (area at mouth of Rose Creek only)

Bay & Harbor

4906.400000, 4906.800000  /  18070304
  • Eutrophic
    • A Source Unknown

1.2 Acres

1996

5A

2019
  • Lead
    • A Source Unknown

1.2 Acres

1996

5A

2019


Region 9

Mission Bay (area at mouth of Tecolote Creek only)

Bay & Harbor

4906.500000, 4906.700000, 4906.800000  /  18070304
  • Eutrophic
    • A Source Unknown

0.41 Acres

1996

5A

2019
  • Lead
    • A Source Unknown

0.41 Acres

1996

5A

2019


Region 9

Mission Bay Shoreline, at Bonita Cove

Coastal & Bay Shoreline

4906.300000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.71 Miles

2014

5A

2033


Region 9

Mission Bay Shoreline, at Bonita Cove (eastern shore)

Coastal & Bay Shoreline

90751000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2025


Region 9

Mission Bay Shoreline, at Campland

Coastal & Bay Shoreline

90640000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.08 Miles

2014

5A

2033


Region 9

Mission Bay Shoreline, at De Anza Cove

Coastal & Bay Shoreline

4906.400000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.98 Miles

2014

5A

2033


Region 9

Mission Bay Shoreline, at Fanual Park

Coastal & Bay Shoreline

4906.300000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.72 Miles

2014

5A

2033


Region 9

Mission Bay Shoreline, at Fiesta Island northwest shore

Coastal & Bay Shoreline

4906.700000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

1.6 Miles

2014

5A

2033


Region 9

Mission Bay Shoreline, at Leisure Lagoon

Coastal & Bay Shoreline

4906.400000,4906.800000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.22 Miles

2014

5A

2033


Region 9

Mission Bay Shoreline, at North Cove Beach at Vacation Isle

Coastal & Bay Shoreline

90752000  /  0000000
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2033


Region 9

Mission Bay Shoreline, at Visitors Center

Coastal & Bay Shoreline

90640000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.1 Miles

2014

5A

2019


Region 9

Mission Bay at Quivira Basin

Bay & Harbor

4906.700000, 4906.800000  /  18070304
  • Copper
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

8.5 Acres

2010

5A

2021


Region 9

Moosa Canyon Creek

River & Stream

90313000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

18 Miles

2014

5A

2033
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

2027
    The indicator bacteria listed include enterococcus and fecal coliform.
  • Nitrogen
    • A Source Unknown

18 Miles

2010

5A

2023
  • Phosphorus
    • A Source Unknown

18 Miles

2010

5A

2023


Region 9

Moosa Canyon, South Fork

River & Stream

90313000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

4.6 Miles

2014

5A

2027
    The indicator bacteria listed include enterococcus and fecal coliform


Region 9

Morena Reservoir

Lake & Reservoir

4911.300000,4911.500000  /  18070305
  • Ammonia
    • A Source Unknown

328 Acres

2014

5A

2019
  • Color
    • A Source Unknown

328 Acres

2006

5A

2019
  • Manganese
    • A Source Unknown

328 Acres

2006

5A

2019
  • Nitrogen
    • A Source Unknown

328 Acres

2010

5A

2023
  • Phosphorus
    • A Source Unknown

328 Acres

2010

5A

2021
  • pH
    • A Source Unknown
    • Unknown Nonpoint Source

328 Acres

2006

5A

2019


Region 9

Moro Canyon Creek

River & Stream

90111000  /  18070301
  • Nitrogen
    • A Source Unknown

3.4 Miles

2010

5A

2023
  • Phosphorus
    • A Source Unknown

3.4 Miles

2010

5A

2023
  • Selenium
    • A Source Unknown

3.4 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

3.4 Miles

2010

5A

2021
    This decision can be retired since the toxicity can be associated to the other impairments from 2010.


Region 9

Murphy Canyon

River & Stream

90711000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

4.9 Miles

2014

5A

2033
  • Phosphorus
    • A Source Unknown

4.9 Miles

2020

5A

2033


Region 9

Murrieta Creek

River & Stream

90252000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2010

5A

2033
  • Bifenthrin
    • A Source Unknown

12 Miles

2020

5A

2033
  • Chlorpyrifos
    • A Source Unknown

12 Miles

2010

5A

2021
  • Copper
    • A Source Unknown

12 Miles

1800

5A

2019
  • Cyhalothrin, Lambda
    • A Source Unknown

12 Miles

2020

5A

2033
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

2025
  • Iron
    • A Source Unknown

12 Miles

2006

5A

2019
  • Manganese
    • A Source Unknown

12 Miles

2006

5A

2019
  • Mercury
    • A Source Unknown

12 Miles

2024

5A

2033
  • Nitrogen
    • A Source Unknown

12 Miles

2006

5A

2019
  • Oxygen, Dissolved
    • A Source Unknown

12 Miles

2014

5A

2033
  • Phosphorus
    • A Source Unknown

12 Miles

2002

5A

2019
  • Pyrethroids
    • A Source Unknown

12 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

2021
  • Turbidity
    • A Source Unknown

12 Miles

2024

5A

2033


Region 9

Oceanside Harbor

Bay & Harbor

4901.530000, 4902.110000, 4902.110000, 4902.110000, 4903.110000, 4903.110000, 4904.100000, 4904.100000, 4904.210000, 4904.210000  /  18070302
  • Copper
    • A Source Unknown
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

7 Acres

2010

5A

2021
  • Toxicity
    • A Source Unknown

7 Acres

2010

5A

2027


Region 9

Oso Creek (at Mission Viejo Golf Course)

River & Stream

90120000  /  18070301
  • Chloride
    • A Source Unknown

1 Miles

2006

5A

2019
  • Sulfates
    • A Source Unknown

1 Miles

2006

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

1 Miles

2006

5A

2019


Region 9

Oso Creek (lower)

River & Stream

90120000  /  18070301
  • Nitrogen
    • A Source Unknown

4 Miles

2010

5A

2023
  • Phosphorus
    • A Source Unknown

4 Miles

2010

5A

2023
  • Selenium
    • A Source Unknown

4 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

4 Miles

2010

5A

2021
    See decision numbers 43302 , 43534 , 44429 for potential sources of water toxicity.


Region 9

Otay Reservoir, Lower

Lake & Reservoir

91031000  /  18070304
  • Ammonia
    • A Source Unknown

1050 Acres

2010

5A

2019
  • Color
    • A Source Unknown

1050 Acres

2006

5A

2019
  • Iron
    • A Source Unknown
    • Natural Sources

1050 Acres

2006

5A

2019
  • Manganese
    • A Source Unknown

1050 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

1050 Acres

2024

5A

2033
  • Nitrogen
    • A Source Unknown

1050 Acres

2010

5A

2021
  • Phosphorus
    • A Source Unknown

1050 Acres

2010

5A

2023
  • pH
    • A Source Unknown

1050 Acres

2014

5A

2019
    The LOE should show 10 of 24 samples exceeding the upper PH limit.


Region 9

Otay River

River & Stream

91020000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

11 Miles

2014

5A

2033
  • Bifenthrin
    • A Source Unknown

11 Miles

2020

5A

2033
  • Copper
    • A Source Unknown

11 Miles

2020

5A

2033
  • Cyfluthrin
    • A Source Unknown

11 Miles

2020

5A

2033
  • Oxygen, Dissolved
    • A Source Unknown

11 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

11 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

11 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

11 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

11 Miles

2020

5A

2033
  • Zinc
    • A Source Unknown

11 Miles

2020

5A

2033


Region 9

Pacific Ocean Shoreline, Aliso HSA, at Aliso Beach - north

Coastal & Bay Shoreline

4901.110000,4901.120000,4901.130000,4901.140000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.27 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Aliso HSA, at Aliso Creek mouth

Coastal & Bay Shoreline

90113000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2025
    The indicator bacteria listed for this water body include enterococcus, fecal coliform and total coliform, for the impairment of REC-1.
  • Toxicity
    • A Source Unknown

0.03 Miles

2014

5A

2029


Region 9

Pacific Ocean Shoreline, Coronado HA, at Avenida del Sol

Coastal & Bay Shoreline

4908.210000,4910.100000,4912.000000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.39 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Coronado HA, at Silver Strand (north end, Oceanside)

Coastal & Bay Shoreline

91010000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Dana Point HSA, at Aliso Beach - south

Coastal & Bay Shoreline

4901.120000,4901.130000,4901.140000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.21 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Dana Point HSA, at Dana Point Harbor at guest dock

Coastal & Bay Shoreline

4901.140000,4901.270000,4901.310000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.16 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Dana Point HSA, at Niguel Marine Life Refuge

Coastal & Bay Shoreline

90114000  /  18070301
  • Toxicity
    • A Source Unknown

0.03 Miles

2014

5A

2029


Region 9

Pacific Ocean Shoreline, Dana Point HSA, at Salt Creek Service Road

Coastal & Bay Shoreline

4901.130000,4901.140000,4901.270000,4901.310000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.61 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Imperial Beach Pier

Coastal & Bay Shoreline

91010000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.42 Miles

2014

5A

2033
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

0.42 Miles

2006

5A

2019
  • Trash
    • A Source Unknown

0.42 Miles

2014

5C

2029


Region 9

Pacific Ocean Shoreline, Laguna Beach HSA, at Bluebird Canyon

Coastal & Bay Shoreline

4901.120000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.21 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Laguna Beach HSA, at Laguna Hotel

Coastal & Bay Shoreline

4901.120000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.23 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Laguna Beach HSA, at Main Beach

Coastal & Bay Shoreline

4901.120000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.13 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Loma Alta HSA, at Loma Alta Creek mouth

Coastal & Bay Shoreline

90410000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

1998

5A

2033
  • Trash
    • A Source Unknown

0.03 Miles

2014

5C

2029


Region 9

Pacific Ocean Shoreline, Mission San Diego HSA, at Newport Ave

Coastal & Bay Shoreline

4906.300000,4906.500000,4906.600000,4906.700000,4906.800000,4907.110000,4908.100000,4908.210000,4912.000000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.35 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Otay Valley HA, at Carnation Ave and Camp Surf Jetty

Coastal & Bay Shoreline

91010000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Otay Valley HA, north of Palm Avenue Jetty

Coastal & Bay Shoreline

4910.100000,4911.110000,4912.000000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.12 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Point Loma HA, at Bermuda Ave

Coastal & Bay Shoreline

4906.300000,4906.600000,4906.700000,4906.800000,4907.110000,4908.100000,4908.210000,4910.100000,4912.000000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.13 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Rancho Santa Fe HSA, at Fletcher Cove Beach

Coastal & Bay Shoreline

4904.510000,4904.610000,4905.110000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.49 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, San Clemente HA, at San Clemente City Beach, 450¿ North of Pier

Coastal & Bay Shoreline

4901.320000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.15 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, San Elijo HSA, at Cardiff State Beach at Chart House parking

Coastal & Bay Shoreline

4904.510000,4904.610000,4905.110000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

0.2 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, San Luis Rey HU, at Tyson Way

Coastal & Bay Shoreline

4904.100000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

0.2 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, San Mateo Canyon HA, at San Mateo Creek outlet

Coastal & Bay Shoreline

4901.320000,4901.400000,4901.510000  /  18070301
  • Indicator Bacteria
    • A Source Unknown

0.19 Miles

2014

5A

2025


Region 9

Pacific Ocean Shoreline, Scripps HA, at Avenida de la Playa at La Jolla Shores Beach

Coastal & Bay Shoreline

90630000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Scripps HA, at La Jolla Cove

Coastal & Bay Shoreline

90630000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Scripps HA, at South Casa Beach

Coastal & Bay Shoreline

90630000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Scripps HA, at Whispering Sands Beach, Nicholson Point, La Jolla

Coastal & Bay Shoreline

4906.300000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.37 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Tijuana HU, at 3/4 mile North of Tijuana River

Coastal & Bay Shoreline

91111000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.03 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Tijuana HU, at Border

Coastal & Bay Shoreline

4910.100000,4911.110000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.29 Miles

2014

5A

2033


Region 9

Pacific Ocean Shoreline, Tijuana HU, at Cortez Avenue

Coastal & Bay Shoreline

4910.100000,4911.110000,4912.000000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

0.36 Miles

2014

5A

2025


Region 9

Pacific Ocean Shoreline, Tijuana HU, at Monument Road

Coastal & Bay Shoreline

4910.100000,4911.110000  /  18070305
  • Indicator Bacteria
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

0.89 Miles

2014

5A

2019


Region 9

Pacific Ocean Shoreline, Tijuana HU, at Tijuana River mouth

Coastal & Bay Shoreline

4910.100000,4911.110000  /  18070305
  • Indicator Bacteria
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

0.34 Miles

2014

5A

2019


Region 9

Pacific Ocean Shoreline, Tijuana HU, at end of Seacoast Drive

Coastal & Bay Shoreline

91111000  /  18070305
  • Indicator Bacteria
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

0.03 Miles

2014

5A

2019
    The indicator bacteria this water body is listed for are enterococcus for REC-1 and total coliform for SHELL.


Region 9

Paleta Creek

River & Stream

90831000  /  18070304
  • Copper
    • A Source Unknown

4.1 Miles

2010

5A

2021
  • Lead
    • A Source Unknown

4.1 Miles

2010

5A

2021


Region 9

Paradise Creek, HSA 908.320

River & Stream

90912000  /  18070304
  • Phosphorus
    • A Source Unknown

2.8 Miles

2010

5A

2023
  • Selenium
    • A Source Unknown

2.8 Miles

2010

5A

2021


Region 9

Pine Valley Creek (Lower)

River & Stream

91130000  /  18070305
  • Indicator Bacteria
    • A Source Unknown

16 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and total coliform for REC-1.


Region 9

Poggi Canyon Creek

River & Stream

91020000  /  18070304
  • Nitrogen
    • A Source Unknown

7.8 Miles

2014

5A

2023
  • Toxicity
    • A Source Unknown

7.8 Miles

2010

5A

2021


Region 9

Poway Creek

River & Stream

90620000  /  18070304
  • Nitrogen
    • A Source Unknown

7.3 Miles

2014

5A

2023
  • Selenium
    • A Source Unknown

7.3 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

7.3 Miles

2010

5A

2021


Region 9

Prima Deshecha Creek

River & Stream

90130000  /  18070301
  • Cadmium
    • A Source Unknown

1.2 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

1.2 Miles

2014

5A

2027
  • Malathion
    • A Source Unknown

1.2 Miles

2014

5A

2027
  • Nitrogen
    • A Source Unknown

1.2 Miles

2014

5A

2023
  • Phosphorus
    • A Source Unknown

1.2 Miles

2002

5A

2019
  • Selenium
    • A Source Unknown

1.2 Miles

2014

5A

2027
    The exceedances were primarily based on samples collected during or after storm events in the winters seasons of 2008 and 2009.
  • Turbidity
    • A Source Unknown

1.2 Miles

2002

5A

2019


Region 9

Rainbow Creek

River & Stream

90222000  /  18070302
  • Aluminum
    • A Source Unknown

5 Miles

2024

5A

2025
  • Benthic Community Effects
    • A Source Unknown

5 Miles

2010

5A

2033
  • Fenpyroximate
    • A Source Unknown

5 Miles

2020

5A

2033
  • Imidacloprid
    • A Source Unknown

5 Miles

2020

5A

2033
  • Iron
    • A Source Unknown

5 Miles

2006

5A

2019
  • Nitrate/Nitrite (Nitrite + Nitrate as N)
    • A Source Unknown

5 Miles

2020

5A

2033
  • Nitrogen
    • Agricultural Return Flows
    • Nonpoint Source
    • Nurseries
    • Onsite Wastewater Systems (Septic Tanks)
    • Other Urban Runoff
    • Point Source

5 Miles

2002

5B

2006
  • Phosphorus
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

5 Miles

2002

5B

2006
  • Sulfates
    • A Source Unknown

5 Miles

2006

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

5 Miles

2006

5A

2019
  • Turbidity
    • A Source Unknown

5 Miles

2024

5A

2033


Region 9

Rainbow Glen

River & Stream

4902.230000  / 
  • Iron
    • A Source Unknown

0.97 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

0.97 Miles

2020

5A

2033
  • Sulfates
    • A Source Unknown

0.97 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

0.97 Miles

2020

5A

2033
  • Turbidity
    • A Source Unknown

0.97 Miles

2020

5A

2033


Region 9

Redhawk Channel

River & Stream

4902.510000  /  18070302
  • Chlorpyrifos
    • A Source Unknown

0.46 Miles

2010

5A

2021
  • Copper
    • A Source Unknown

0.46 Miles

2010

5A

2021
  • Diazinon
    • A Source Unknown

0.46 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

0.46 Miles

2014

5A

2025
    The indicator bacteria listed include E. Coli., and fecal coliform.
  • Iron
    • A Source Unknown
    • Natural Sources

0.46 Miles

2010

5A

2019
  • Manganese
    • A Source Unknown

0.46 Miles

2010

5A

2021
  • Nitrogen
    • A Source Unknown

0.46 Miles

2010

5A

2021
  • Phosphorus
    • A Source Unknown

0.46 Miles

2010

5A

2021
  • Total Dissolved Solids
    • A Source Unknown

0.46 Miles

2010

5A

2021


Region 9

Reidy Canyon Creek

River & Stream

90462000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

3.9 Miles

2014

5A

2027
  • Phosphorus
    • A Source Unknown

3.9 Miles

2006

5A

2019


Region 9

Rose Creek

River & Stream

90640000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

13 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

13 Miles

2014

5A

2033
  • Cyfluthrin
    • A Source Unknown

13 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

13 Miles

2020

5A

2033
  • Pyrethroids
    • A Source Unknown

13 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown
    • Natural Sources

13 Miles

2010

5A

2021
  • Total Dissolved Solids
    • A Source Unknown

13 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

13 Miles

2010

5A

2021
    Toxicity is linked to Selenium exceedances.


Region 9

Salt Creek (Orange County)

River & Stream

90114000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

10 Miles

2014

5A

2025
  • Imidacloprid
    • A Source Unknown

10 Miles

2020

5A

2033
  • Malathion
    • Surface Runoff

10 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

10 Miles

2014

5A

2027


Region 9

San Diego Bay

Bay & Harbor

4908.100000, 4908.100000, 4908.100000, 4908.210000, 4908.210000, 4908.220000, 4908.310000, 4908.320000, 4909.110000, 4909.120000,(Total Count: 17)  /  18070304
  • Mercury
    • A Source Unknown
    • Atmospheric Deposition
    • Contaminated Sediments
    • Historic Land Management Activities
    • Other Urban Runoff

1418 Acres

2014

5A

2027
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

1418 Acres

2014

5A

2025
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown
    • Contaminated Sediments
    • Dredging
    • Historic Land Management Activities
    • Illegal dumping
    • Spills
    • Urban Runoff/Storm Sewers

1418 Acres

2006

5A

2019


Region 9

San Diego Bay Shoreline, 32nd St San Diego Naval Station

Bay & Harbor

4908.220000, 4908.310000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

14 Acres

1998

5A

2019
  • Sediment Toxicity
    • A Source Unknown

14 Acres

1998

5A

2019


Region 9

San Diego Bay Shoreline, Chula Vista Marina

Coastal & Bay Shoreline

90912000  /  18070304
  • Copper
    • A Source Unknown

0.41 Miles

2006

5A

2019
  • Indicator Bacteria
    • A Source Unknown

0.41 Miles

2024

5A

2033


Region 9

San Diego Bay Shoreline, Downtown Anchorage

Bay & Harbor

4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

0.97 Acres

1998

5A

2019
  • Sediment Toxicity
    • A Source Unknown

0.97 Acres

1998

5A

2019


Region 9

San Diego Bay Shoreline, G Street Pier

Coastal & Bay Shoreline

90821000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.42 Miles

2002

5A

2025
    The indicator bacteria listed include total coliform for SHELL.


Region 9

San Diego Bay Shoreline, North of 24th Street Marine Terminal

Bay & Harbor

4908.320000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

1.2 Acres

2002

5A

2019
  • Sediment Toxicity
    • A Source Unknown

1.2 Acres

2002

5A

2019


Region 9

San Diego Bay Shoreline, Seventh Street Channel

Bay & Harbor

4908.310000, 4908.320000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

1.2 Acres

2002

5A

2008
  • Sediment Toxicity
    • A Source Unknown

1.2 Acres

2002

5A

2008


Region 9

San Diego Bay Shoreline, Tidelands Park

Coastal & Bay Shoreline

91010000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

0.38 Miles

1800

5A

2033


Region 9

San Diego Bay Shoreline, Vicinity of B St and Broadway Piers

Bay & Harbor

4908.210000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

1.3 Acres

2002

5A

2019
  • Indicator Bacteria
    • A Source Unknown

1.3 Acres

2010

5A

2019
  • Sediment Toxicity
    • A Source Unknown

1.3 Acres

2002

5A

2019


Region 9

San Diego Bay Shoreline, at Americas Cup Harbor

Estuary

4908.100000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

12 Acres

1992

5A

2019


Region 9

San Diego Bay Shoreline, at Bayside Park (J Street)

Bay & Harbor

4909.120000, 4912.000000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

6.6 Acres

2014

5A

2021
    The indicator bacteria listed for this water body include enterococcus for REC-1 and total coliform for SHELL beneficial use.


Region 9

San Diego Bay Shoreline, at Coronado Cays

Bay & Harbor

4910.100000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

6.2 Acres

1992

5A

2019


Region 9

San Diego Bay Shoreline, at Glorietta Bay

Bay & Harbor

4910.100000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

6.9 Acres

1992

5A

2019


Region 9

San Diego Bay Shoreline, at Harbor Island (East Basin)

Bay & Harbor

4908.210000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

9.6 Acres

1992

5A

2019


Region 9

San Diego Bay Shoreline, at Harbor Island (West Basin)

Bay & Harbor

4908.100000, 4908.210000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

17 Acres

1992

5A

2019


Region 9

San Diego Bay Shoreline, at Marriott Marina

Bay & Harbor

4908.210000, 4912.000000  /  18070304
  • Copper
    • A Source Unknown

3.1 Acres

1992

5A

2019


Region 9

San Diego Bay Shoreline, near Chollas Creek

Bay & Harbor

4908.220000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

1.9 Acres

2002

5A

2010
  • Sediment Toxicity
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source

1.9 Acres

2002

5A

2010


Region 9

San Diego Bay Shoreline, near Coronado Bridge

Bay & Harbor

4908.220000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

4.9 Acres

2002

5A

2019
  • Sediment Toxicity
    • A Source Unknown

4.9 Acres

2002

5A

2019
    Includes Crosby Street/Cesar Chavez Park area, that will receive additional monitoring.


Region 9

San Diego Bay Shoreline, near Switzer Creek

Bay & Harbor

4908.210000, 4908.220000, 4912.000000  /  18070304
  • Chlordane
    • A Source Unknown

0.73 Acres

2002

5A

2019
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown

0.73 Acres

2002

5A

2019


Region 9

San Diego Bay Shoreline, near sub base

Bay & Harbor

4908.100000, 4912.000000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

2.1 Acres

2002

5A

2021
    There is not an expected TMDL completion date because the TMDL is for the waterbody and pollutant and the TMDL can not be completed for benthic community effects alone.
  • Toxicity
    • A Source Unknown

2.1 Acres

2002

5A

2021


Region 9

San Diego River (Lower)

River & Stream

4906.700000,4906.800000,4907.110000,4907.120000,4907.150000,4907.310000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

29 Miles

2014

5A

2025
  • Bifenthrin
    • A Source Unknown

29 Miles

2014

5A

2033
  • Chlordane
    • A Source Unknown

29 Miles

2014

5A

2033
  • Chloride
    • A Source Unknown

29 Miles

2020

5A

2033
  • Color
    • A Source Unknown

29 Miles

2020

5A

2033
  • Cyfluthrin
    • A Source Unknown

29 Miles

2020

5A

2033
  • Cypermethrin
    • A Source Unknown

29 Miles

2014

5A

2033
  • Indicator Bacteria
    • A Source Unknown

29 Miles

2014

5B

2011
  • Nitrogen
    • A Source Unknown

29 Miles

2010

5A

2029
  • Oxygen, Dissolved
    • A Source Unknown

29 Miles

2014

5A

2033
    Impairment transcends adjacent Calwater watershed 90712.
  • Permethrin
    • A Source Unknown

29 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

29 Miles

2002

5A

2019
    Impairment transcends adjacent Calwater watershed 90712.
  • Pyrethroids
    • A Source Unknown

29 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

29 Miles

2002

5A

2019
    Impairment transcends adjacent Calwater watershed 90712.
  • Toxicity
    • A Source Unknown

29 Miles

2010

5A

2025
    Up to this time of assessment, sediment toxicity has been observed mostly in samples from the San Diego River Estuary. In the next cycle of assessment, San Diego River Estuary will be separated from the lower portion (i.e., freshwater) portion of San Diego River (lower).
  • Turbidity
    • A Source Unknown

29 Miles

2020

5A

2033


Region 9

San Dieguito River

River & Stream

90511000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Agriculture
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

19 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

19 Miles

2014

5A

2033
  • Chloride
    • A Source Unknown

19 Miles

2020

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

19 Miles

2020

5A

2033
  • Nitrogen
    • A Source Unknown

19 Miles

2010

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

19 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

19 Miles

2010

5A

2021
  • Pyrethroids
    • A Source Unknown

19 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

19 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

19 Miles

2010

5A

2021


Region 9

San Dieguito River, unnamed tributary below Hodges Dam

River & Stream

90511000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

4.2 Miles

2014

5A

2025
    The indicator bacteria listed is enterococcus.


Region 9

San Elijo Creek (San Diego County)

River & Stream

90461000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

3.7 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus, fecal coliform, and total coliform.


Region 9

San Elijo Creek (San Diego County), unnamed tributary at San Elijo Avenue

River & Stream

90461000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

1.6 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and fecal coliform.


Region 9

San Elijo Lagoon

Coastal & Bay Shoreline

4904.510000,4904.610000,4905.110000  /  18070303
  • Eutrophic
    • A Source Unknown

185 Miles

1996

5A

2019
    Estimated size of impairment is 330 acres.
  • Indicator Bacteria
    • A Source Unknown

185 Miles

1996

5A

2015
  • Oxygen, Dissolved
    • A Source Unknown

185 Miles

2020

5A

2033
  • Sedimentation/Siltation
    • A Source Unknown

185 Miles

1996

5A

2019
    Estimated size of impairment is 150 acres.
  • Toxicity
    • A Source Unknown

185 Miles

2014

5A

2025
  • Turbidity
    • A Source Unknown

185 Miles

2020

5A

2033


Region 9

San Juan Creek

River & Stream

4901.240000,4901.250000,4901.260000,4901.270000,4901.280000  /  18070301
  • Benthic Community Effects
    • A Source Unknown
    • Agriculture
    • Contaminated Sediments
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Removal of Riparian Vegetation
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

46 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

46 Miles

2014

5A

2033
  • DDE (Dichlorodiphenyldichloroethylene)
    • A Source Unknown

46 Miles

2006

5A

2019
  • Indicator Bacteria
    • A Source Unknown

46 Miles

1992

5A

2019
  • Nitrogen
    • A Source Unknown

46 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

46 Miles

2014

5A

2029
  • Phosphorus
    • A Source Unknown

46 Miles

1800

5A

2021
  • Pyrethroids
    • A Source Unknown

46 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown

46 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

46 Miles

2010

5A

2021


Region 9

San Juan Creek (mouth)

Estuary

4901.140000, 4901.270000, 4901.270000, 4901.310000  /  18070301
  • Cadmium
    • A Source Unknown

0.84 Acres

2014

5A

2025
  • Copper
    • A Source Unknown

0.84 Acres

2014

5A

2025
  • Indicator Bacteria
    • A Source Unknown

0.84 Acres

1990

5B

2011
  • Nickel
    • A Source Unknown

0.84 Acres

2014

5A

2025
  • Nitrogen, ammonia (Total Ammonia)
    • A Source Unknown

0.84 Acres

2014

5A

2025


Region 9

San Luis Rey River, Lower (west of Interstate 15)

River & Stream

90311000  /  18070303
  • Benthic Community Effects
    • A Source Unknown

19 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

19 Miles

2014

5A

2029
  • Chloride
    • A Source Unknown

19 Miles

2002

5A

2019
    Impairment located at lower 13 miles.
  • Nitrogen
    • A Source Unknown

19 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

19 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

19 Miles

2010

5A

2021
  • Pyrethroids
    • A Source Unknown

19 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

19 Miles

2002

5A

2019
  • Toxicity
    • A Source Unknown

19 Miles

2010

5A

2021


Region 9

San Luis Rey River, Upper (east of Interstate 15)

River & Stream

90312000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

35 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus for the impairment of REC-1.
  • Phosphorus
    • A Source Unknown

35 Miles

2010

5A

2023
  • Total Nitrogen as N
    • A Source Unknown

35 Miles

2010

5A

2021


Region 9

San Marcos Creek, Lower (below San Marcos Lake)

River & Stream

4904.510000,4904.520000  / 
  • Phosphorus
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

5.3 Miles

2020

5A

2019
  • Selenium
    • A Source Unknown

5.3 Miles

2020

5A

2021
  • Toxicity
    • A Source Unknown

5.3 Miles

2020

5A

2019


Region 9

San Marcos Creek, Upper (above San Marcos Lake)

River & Stream

4904.520000  / 
  • Bifenthrin
    • A Source Unknown

4.3 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

4.3 Miles

2020

5A

2019
  • Pyrethroids
    • A Source Unknown

4.3 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown

4.3 Miles

2020

5A

2021
  • Total Dissolved Solids
    • A Source Unknown

4.3 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

4.3 Miles

2020

5A

2033


Region 9

San Marcos, Lake, drain to central southwest fork of lake

River & Stream

90452000  /  18070303
  • Copper
    • A Source Unknown

0.07 Miles

2014

5A

2027
  • Indicator Bacteria
    • A Source Unknown

0.07 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus, fecal coliform, and total coliform.


Region 9

San Mateo Creek (San Diego County)

River & Stream

90140000  /  18070303
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

2025
    The indicator bacteria listed include E. coli., enterococcus, and total coliform for impairment of REC-1.
  • Invasive Species
    • A Source Unknown

18 Miles

2014

5A

2027
  • Oxygen, Dissolved
    • A Source Unknown

18 Miles

2014

5A

2033


Region 9

San Vicente Creek (San Diego County)

River & Stream

90722000  /  18070304
  • Ammonia as Nitrogen
    • A Source Unknown

16 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

16 Miles

2014

5A

2025
    The indicator bacteria listed is enterococcus.
  • Phosphorus
    • A Source Unknown

16 Miles

2010

5A

2023
  • Total Nitrogen as N
    • A Source Unknown

16 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

16 Miles

2010

5A

2021


Region 9

San Vicente Reservoir

Lake & Reservoir

4907.210000  /  18070304
  • Chloride
    • A Source Unknown
    • Unknown Nonpoint Source
    • Water Diversions

1088 Acres

2006

5A

2019
  • Color
    • A Source Unknown

1088 Acres

2006

5A

2023
  • Nitrogen
    • A Source Unknown

1088 Acres

2014

5A

2023
  • Sulfates
    • A Source Unknown

1088 Acres

2006

5A

2019
  • pH
    • A Source Unknown

1088 Acres

2014

5A

2019


Region 9

Sandia Creek

River & Stream

4902.220000  /  18070302
  • Aluminum
    • A Source Unknown

6.8 Miles

2024

5A

2027
  • Ammonia (Unionized)
    • A Source Unknown

6.8 Miles

2014

5A

2025
  • Iron
    • A Source Unknown

6.8 Miles

2006

5A

2025
  • Manganese
    • A Source Unknown

6.8 Miles

2006

5A

2025
  • Nitrogen
    • A Source Unknown

6.8 Miles

2006

5A

2029
  • Selenium
    • A Source Unknown

6.8 Miles

2024

5A

2027
  • Silver
    • A Source Unknown

6.8 Miles

2024

5A

2027
  • Sulfates
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

6.8 Miles

2006

5A

2019
  • Total Dissolved Solids
    • A Source Unknown

6.8 Miles

2002

5A

2019


Region 9

Santa Gertrudis Creek

River & Stream

90242000  /  18070302
  • Chlorpyrifos
    • A Source Unknown

12 Miles

2010

5A

2021
  • Copper
    • A Source Unknown

12 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

2021
  • Iron
    • A Source Unknown

12 Miles

2010

5A

2021
  • Manganese
    • A Source Unknown

12 Miles

2010

5A

2021
  • Nitrogen
    • A Source Unknown

12 Miles

2014

5A

2023
  • Phosphorus
    • A Source Unknown

12 Miles

2010

5A

2021


Region 9

Santa Margarita River (Lower)

River & Stream

4902.110000,4902.120000,4902.130000,4902.210000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

12 Miles

2014

5A

2025
  • Bifenthrin
    • A Source Unknown

12 Miles

2014

5A

2033
  • Chlorpyrifos
    • A Source Unknown

12 Miles

2014

5A

2029
  • Indicator Bacteria
    • A Source Unknown

12 Miles

2014

5A

2025
  • Iron
    • A Source Unknown

12 Miles

2020

5A

2033
  • Manganese
    • A Source Unknown

12 Miles

2020

5A

2033
  • Nitrogen
    • A Source Unknown

12 Miles

2014

5A

2025
  • Phosphorus
    • A Source Unknown

12 Miles

2010

5A

2021
  • Pyrethroids
    • A Source Unknown

12 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

12 Miles

2010

5A

2025
  • Turbidity
    • A Source Unknown

12 Miles

2020

5A

2033


Region 9

Santa Margarita River (Upper)

River & Stream

90222000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

18 Miles

2014

5A

2033
  • Bifenthrin
    • A Source Unknown

18 Miles

2014

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

18 Miles

2014

5A

2033
  • Indicator Bacteria
    • A Source Unknown

18 Miles

2014

5A

2033
  • Iron
    • A Source Unknown

18 Miles

2014

5A

2025
  • Manganese
    • A Source Unknown

18 Miles

2010

5A

2025
  • Nitrogen
    • A Source Unknown

18 Miles

2014

5A

2023
  • Phosphorus
    • A Source Unknown

18 Miles

2002

5A

2019
  • Pyrethroids
    • A Source Unknown

18 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

18 Miles

2014

5A

2033
  • Toxicity
    • A Source Unknown

18 Miles

2010

5A

2025
  • Turbidity
    • A Source Unknown

18 Miles

2014

5A

2033


Region 9

Santa Ysabel Creek (below Sutherland Reservoir)

River & Stream

4905.210000,4905.310000,4905.320000  /  18070304
  • Benthic Community Effects
    • A Source Unknown

4.1 Miles

2014

5A

2033
  • Manganese
    • A Source Unknown

4.1 Miles

2014

5A

2033
  • Phosphorus
    • A Source Unknown

4.1 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

4.1 Miles

2014

5A

2033
  • Toxicity
    • A Source Unknown

4.1 Miles

2014

5A

2033


Region 9

Segunda Deshecha Creek

River & Stream

90130000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

0.92 Miles

2014

5A

2025
  • Indicator Bacteria
    • A Source Unknown

0.92 Miles

2014

5A

2027
    The indicator bacteria listed included enterococci and fecal coliform for REC-1.
  • Malathion
    • A Source Unknown

0.92 Miles

2014

5A

2027
  • Nitrogen
    • A Source Unknown

0.92 Miles

2014

5A

2027
    The Listing Decision is based on data collected about 10 years old. In future cycles of evaluation, more recent data will be solicited and combined with the existing data to re-evaluate the water body condition.
  • Phosphorus
    • A Source Unknown

0.92 Miles

2002

5A

2019
  • Selenium
    • A Source Unknown

0.92 Miles

2014

5A

2027
  • Toxicity
    • A Source Unknown

0.92 Miles

2010

5A

2021
  • Turbidity
    • A Source Unknown

0.92 Miles

2002

5A

2019


Region 9

Shepherd Canyon East

River & Stream

4907.110000  / 
  • Phosphorus
    • A Source Unknown

2.5 Miles

2020

5A

2033


Region 9

Skinner Lake

Lake & Reservoir

4902.410000  / 
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown

996 Acres

2020

5A

2033


Region 9

Soledad Canyon

River & Stream

90610000  /  18070304
  • Phosphorus
    • A Source Unknown

1.7 Miles

2020

5A

2033
  • Sediment Toxicity
    • A Source Unknown

1.7 Miles

2002

5A

2019
  • Selenium
    • A Source Unknown
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

1.7 Miles

2010

5A

2021


Region 9

Steele Canyon

River & Stream

90921000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

5.4 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and fecal coliform.


Region 9

Sutherland Reservoir

Lake & Reservoir

90553000  /  18070304
  • Color
    • A Source Unknown

561 Acres

2002

5A

2019
  • Iron
    • A Source Unknown

561 Acres

2024

5A

2021
  • Manganese
    • A Source Unknown

561 Acres

2006

5A

2019
  • Mercury
    • A Source Unknown

561 Acres

2024

5A

2033
  • Nitrogen
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source

561 Acres

2014

5A

2021
  • Phosphorus
    • A Source Unknown

561 Acres

2010

5A

2023
  • pH
    • A Source Unknown

561 Acres

2006

5A

2019


Region 9

Sweetwater Reservoir

Lake & Reservoir

90921000  /  18070304
  • Mercury
    • A Source Unknown

925 Acres

2024

5A

2033
  • Oxygen, Dissolved
    • A Source Unknown

925 Acres

2006

5A

2019


Region 9

Sweetwater River, Lower (below Sweetwater Reservoir)

River & Stream

4909.120000,4909.120000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

14 Miles

2014

5A

2025
  • Bifenthrin
    • A Source Unknown

14 Miles

2014

5A

2033
  • Chlorpyrifos
    • A Source Unknown

14 Miles

2014

5A

2025
  • Indicator Bacteria
    • A Source Unknown

14 Miles

2014

5A

2021
  • Nitrogen
    • A Source Unknown

14 Miles

2014

5A

2021
  • Oxygen, Dissolved
    • A Source Unknown

14 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

14 Miles

2010

5A

2021
  • Pyrethroids
    • A Source Unknown

14 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

14 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

14 Miles

2010

5A

2021


Region 9

Sweetwater River, Middle (between Sweetwater and Loveland Reservoirs)

River & Stream

4909.210000,4909.230000  / 
  • Phosphorus
    • A Source Unknown

17 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown

17 Miles

2020

5A

2027
  • Total Dissolved Solids
    • A Source Unknown

17 Miles

2020

5A

2033
  • Toxicity
    • A Source Unknown

17 Miles

2020

5A

2033
  • Turbidity
    • A Source Unknown

17 Miles

2020

5A

2033


Region 9

Sweetwater River, North Fork, unnamed tributary at Tavern Road

River & Stream

90926000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

1.6 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and fecal coliform for impairment of REC-1.
  • Manganese
    • A Source Unknown

1.6 Miles

2014

5A

2027


Region 9

Sweetwater River, Upper (above Loveland Reservoir)

River & Stream

4909.310000,4909.340000,4909.350000  / 
  • Toxicity
    • A Source Unknown

27 Miles

2020

5A

2033


Region 9

Switzer Creek

River & Stream

4908.220000,4908.220000  /  18070304
  • Copper
    • A Source Unknown

4 Miles

2010

5A

2021
  • Lead
    • A Source Unknown

4 Miles

2010

5A

2021
  • Zinc
    • A Source Unknown

4 Miles

2010

5A

2021


Region 9

Sycamore Canyon

River & Stream

4907.120000  /  18070304
  • Oxygen, Dissolved
    • A Source Unknown

8.4 Miles

2014

5A

2025


Region 9

Tecate Creek

River & Stream

91123000  /  18070305
  • Nitrogen
    • A Source Unknown

1.2 Miles

2010

5A

2027
    The listing decision is based on data collected about 10 years old. In future cycles of evaluation, more recent data will be solicited and combined with the existing data to re-evaluate the water body condition as appropriate.
  • Phosphorus
    • A Source Unknown

1.2 Miles

2010

5A

2023
  • Selenium
    • A Source Unknown

1.2 Miles

2010

5A

2021


Region 9

Tecolote Creek

River & Stream

90650000  /  18070304
  • Benthic Community Effects
    • A Source Unknown
    • Hydromodification
    • Illicit Connections/Illegal Hook-ups/Dry Weather Flows
    • Unknown Point Source
    • Urban Runoff/Storm Sewers

6.6 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

6.6 Miles

2014

5A

2025
  • Cyfluthrin
    • A Source Unknown

6.6 Miles

2020

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

6.6 Miles

2020

5A

2033
  • Cypermethrin
    • A Source Unknown

6.6 Miles

2014

5A

2025
  • Diazinon
    • A Source Unknown

6.6 Miles

2014

5A

2025
  • Indicator Bacteria
    • A Source Unknown

6.6 Miles

1996

5B

2011
  • Nitrogen
    • A Source Unknown

6.6 Miles

2010

5A

2021
  • Permethrin
    • A Source Unknown

6.6 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

6.6 Miles

2006

5A

2019
  • Pyrethroids
    • A Source Unknown

6.6 Miles

2020

5A

2033
  • Selenium
    • A Source Unknown
    • Natural Sources

6.6 Miles

2010

5A

2021
  • Toxicity
    • A Source Unknown

6.6 Miles

1996

5A

2019
  • Turbidity
    • A Source Unknown

6.6 Miles

2006

5A

2019
  • pH
    • A Source Unknown

6.6 Miles

2024

5A

2033


Region 9

Tecolote Creek, South Fork

River & Stream

90650000  /  18070304
  • Indicator Bacteria
    • A Source Unknown

4 Miles

2014

5A

2025
    The indicator bacteria listed include enterococcus and fecal coliform.


Region 9

Telegraph Canyon Creek

River & Stream

90911000  /  18070304
  • Nitrogen
    • A Source Unknown

10 Miles

2010

5A

2027
  • Selenium
    • A Source Unknown

10 Miles

2010

5A

2021


Region 9

Temecula Creek

River & Stream

90251000  /  18070302
  • Benthic Community Effects
    • A Source Unknown

44 Miles

2010

5A

2033
  • Bifenthrin
    • A Source Unknown

44 Miles

2020

5A

2033
  • Chlorpyrifos
    • A Source Unknown

44 Miles

2010

5A

2021
  • Copper
    • A Source Unknown
    • Urban Runoff/Storm Sewers

44 Miles

2010

5A

2021
  • Cyfluthrin
    • A Source Unknown

44 Miles

2020

5A

2033
  • Cyhalothrin, Lambda
    • A Source Unknown

44 Miles

2020

5A

2033
  • Indicator Bacteria
    • A Source Unknown

44 Miles

2014

5A

2025
  • Iron
    • A Source Unknown

44 Miles

2020

5A

2033
  • Manganese
    • A Source Unknown

44 Miles

2020

5A

2033
  • Mercury
    • A Source Unknown

44 Miles

2020

5A

2033
  • Nitrogen
    • A Source Unknown

44 Miles

2006

5A

2033
  • Permethrin
    • A Source Unknown

44 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

44 Miles

2006

5A

2019
  • Pyrethroids
    • A Source Unknown

44 Miles

2020

5A

2033
  • Sulfates
    • A Source Unknown

44 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

44 Miles

2006

5A

2019
  • Toxicity
    • A Source Unknown

44 Miles

2010

5A

2021
  • Turbidity
    • A Source Unknown

44 Miles

2024

5A

2033


Region 9

Tijeras Canyon

River & Stream

90120000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

4.2 Miles

2014

5A

2033
  • Phosphorus
    • A Source Unknown

4.2 Miles

2020

5A

2033


Region 9

Tijuana River

River & Stream

4911.110000,4911.120000  /  18070305
  • Ammonia (Unionized)
    • Wastewater

15 Miles

2020

5A

2033
  • Ammonia as Nitrogen
    • A Source Unknown

15 Miles

2010

5A

2027
  • Benthic Community Effects
    • A Source Unknown

15 Miles

2010

5A

2025
  • Bifenthrin
    • A Source Unknown

15 Miles

2014

5A

2033
  • Cadmium
    • A Source Unknown

15 Miles

2014

5A

2025
  • Chlorpyrifos
    • A Source Unknown

15 Miles

2014

5A

2025
  • Color
    • A Source Unknown

15 Miles

2020

5A

2033
  • Cypermethrin
    • A Source Unknown

15 Miles

2014

5A

2033
  • Diazinon
    • A Source Unknown

15 Miles

2014

5A

2025
  • Dichlorvos
    • A Source Unknown

15 Miles

2020

5A

2033
  • Eutrophic
    • A Source Unknown

15 Miles

1996

5A

2019
  • Indicator Bacteria
    • A Source Unknown

15 Miles

1992

5A

2010
  • Low Dissolved Oxygen
    • A Source Unknown

15 Miles

1996

5A

2019
  • Malathion
    • A Source Unknown

15 Miles

2014

5A

2025
  • Oxygen, Dissolved
    • A Source Unknown

15 Miles

2024

5A

2033
  • Permethrin
    • A Source Unknown

15 Miles

2014

5A

2033
  • Pesticides
    • A Source Unknown

15 Miles

1996

5A

2019
  • Phosphorus
    • A Source Unknown

15 Miles

2010

5A

2021
  • Pyrethroids
    • A Source Unknown

15 Miles

2020

5A

2033
  • Sedimentation/Siltation
    • A Source Unknown

15 Miles

2010

5A

2021
  • Selenium
    • A Source Unknown

15 Miles

2010

5A

2025
  • Solids
    • A Source Unknown

15 Miles

1996

5A

2019
  • Surfactants (MBAS)
    • A Source Unknown

15 Miles

2010

5A

2021
  • Synthetic Organics
    • A Source Unknown

15 Miles

1996

5A

2019
  • Total Nitrogen as N
    • A Source Unknown
    • Natural Sources
    • Unknown Nonpoint Source
    • Urban Runoff/Storm Sewers

15 Miles

2010

5A

2025
  • Toxicity
    • A Source Unknown

15 Miles

2010

5A

2025
  • Trace Elements
    • A Source Unknown

15 Miles

1998

5A

2019
  • Trash
    • A Source Unknown

15 Miles

1998

5A

2019
  • Turbidity
    • A Source Unknown

15 Miles

2020

5A

2033


Region 9

Tijuana River Estuary

Coastal & Bay Shoreline

4910.100000,4911.110000,4912.000000  /  18070305
  • Eutrophic
    • A Source Unknown

1320 Miles

1996

5A

2019
    Estimated size of impairment is 1 acre.
  • Indicator Bacteria
    • A Source Unknown

1320 Miles

1988

5A

2010
    Estimated size of impairment is 150 acres.
  • Lead
    • A Source Unknown

1320 Miles

1992

5A

2019
    Estimated size of impairment is 1 acre.
  • Low Dissolved Oxygen
    • A Source Unknown

1320 Miles

1988

5A

2019
  • Nickel
    • A Source Unknown

1320 Miles

1992

5A

2019
    Estimated size of impairment is 1 acre.
  • Pesticides
    • A Source Unknown

1320 Miles

1992

5A

2019
    Estimated size of impairment is 1 acre.
  • Thallium
    • A Source Unknown

1320 Miles

1992

5A

2019
    Estimated size of impairment is 1 acre.
  • Toxicity
    • A Source Unknown

1320 Miles

2014

5A

2025
  • Trash
    • A Source Unknown

1320 Miles

1996

5A

2019
    Estimated size of impairment is 1 acre.
  • Turbidity
    • A Source Unknown

1320 Miles

2006

5A

2019


Region 9

Tijuana River, Upper (Cottonwood Creek confluence to 1st border crossing)

River & Stream

4911.210000,4911.230000  /  18070305
  • Phosphorus
    • A Source Unknown

3.2 Miles

2020

5A

2033


Region 9

Unnamed Tributary to French Valley

River & Stream

4902.330000  / 
  • Phosphorus
    • A Source Unknown

3.9 Miles

2020

5A

2033


Region 9

Via Milpas

River & Stream

4902.220000  / 
  • Iron
    • A Source Unknown

1 Miles

2020

5A

2033
  • Phosphorus
    • A Source Unknown

1 Miles

2020

5A

2033
  • Sulfates
    • A Source Unknown

1 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

1 Miles

2020

5A

2033
  • Turbidity
    • A Source Unknown

1 Miles

2020

5A

2033


Region 9

Warm Springs Creek (Riverside County)

River & Stream

90233000  /  18070302
  • Chlorpyrifos
    • A Source Unknown

15 Miles

2010

5A

2021
  • Indicator Bacteria
    • A Source Unknown

15 Miles

2014

5A

2021
    The indicator bacteria listed include E.Coli. and fecal coliform
  • Iron
    • A Source Unknown

15 Miles

2010

5A

2021
  • Manganese
    • A Source Unknown

15 Miles

2010

5A

2021
  • Nitrogen
    • A Source Unknown

15 Miles

2014

5A

2021
  • Phosphorus
    • A Source Unknown

15 Miles

2010

5A

2021


Region 9

Willow Glen

River & Stream

4902.220000  / 
  • Phosphorus
    • A Source Unknown

0.93 Miles

2020

5A

2033
  • Sulfates
    • A Source Unknown

0.93 Miles

2020

5A

2033
  • Total Dissolved Solids
    • A Source Unknown

0.93 Miles

2020

5A

2033


Region 9

Wood Canyon (Orange County)

River & Stream

90113000  /  18070301
  • Benthic Community Effects
    • A Source Unknown

3.9 Miles

2010

5A

2025
  • Diazinon
    • A Source Unknown

3.9 Miles

2014

5A

2027
  • Selenium
    • A Source Unknown

3.9 Miles

2014

5A

2027