Attachment A 303(d) List for Bodies of Water from RWQCB ......in Southern California...

Regulatory_Issues_Trends.doc

Attachment A 303(d) List for Bodies of Water

from RWQCB Basin Plans in Southern California


Attachment A-1 Lahontan RWQCB Basin Plan 303(d) List

REGION TYPE NAME POLLUTANT/STRESSORCALWATER

WATERSHED ESTIMATED

SIZE AFFECTEDPOTENTIAL

SOURCES

2006 CWA SECTION 303(d) LIST OF WATER QUALITY LIMITED SEGMENTS REQUIRING TMDLS

COMPLETIONPROPOSED TMDL

USEPA APPROVAL DATE: JUNE 28, 2007

LAHONTAN REGIONAL WATER QUALITY CONTROL BOARD

Big Meadow Creek6 R 63410011Pathogens 1.4 2019Miles

Range Grazing-Riparian and/or Upland

Natural Sources

Recreational and Tourism Activities (non-boating)

Blackwood Creek6 R 63420021Iron 5.9 2015

Miles

Erosion/Siltation

Natural Sources

Nonpoint Source

Nitrogen 5.9 2008Nitrogen loading from creek to be addressed during development of Lake Tahoe TMDL, but a more specific TMDL may be needed for Blackwood Creek.

Miles

Silviculture

Resource Extraction

Hydromodification

Streambank Modification/Destabilization

Erosion/Siltation

Atmospheric Deposition

Natural Sources

Nonpoint Source

Phosphorus 5.9 2008Phosphorus loading from creek to be addressed during development of Lake Tahoe TMDL, but a more specific TMDL for creek may be needed.

Miles

Grazing-Related Sources

Silviculture

Resource Extraction

Hydromodification


Erosion/Siltation

Natural Sources

Nonpoint Source

Page 1 of 26


WATERSHED ESTIMATED


SOURCES





Sedimentation/Siltation 5.9 2008Creek affected by past gravel quarry operations and other watershed disturbance including grazing and timber harvest.

Miles


Silviculture

Construction/Land Development

Surface Runoff

Resource Extraction

Hydromodification


Erosion/Siltation


Natural Sources


Nonpoint Source

Bodie Creek6 R 63020031Mercury 11 2019

Miles

Source Unknown

Page 2 of 26


WATERSHED ESTIMATED


SOURCES





Bridgeport Reservoir6 L 63030050Nitrogen 2614 2006Acres


Pasture Grazing-Riparian and/or Upland

Other Urban Runoff

Highway/Road/Bridge Runoff

Wastewater - land disposal

Flow Regulation/Modification

Removal of Riparian Vegetation


Channel Erosion

Erosion/Siltation

Marinas and Recreational Boating


Internal Nutrient Cycling (primarily lakes)

Sediment Resuspension

Natural Sources


Phosphorus 2614 2006Acres



Other Urban Runoff






Channel Erosion

Erosion/Siltation




Natural Sources


Page 3 of 26


WATERSHED ESTIMATED


SOURCES





Sedimentation/Siltation 2614 2006Acres



Erosion/Siltation


Bronco Creek6 R 63520053Sedimentation/Siltation 1.3 2006

Watershed disturbance in naturally highly erosive watershed.Miles

Silviculture

Natural Sources

Nonpoint Source

Buckeye Creek6 R 63040022Pathogens 17 2019

Miles




Natural Sources


Carson River, West Fork (Headwaters to Woodfords)

6 R 63320014

Nitrogen 18 2019

Miles

Silviculture

Onsite Wastewater Systems (Septic Tanks)

Habitat Modification



Channel Erosion

Erosion/Siltation


Highway Maintenance and Runoff

Natural Sources


Page 4 of 26


WATERSHED ESTIMATED


SOURCES





Phosphorus 18 2019Revision of standard may be considered.

Miles

Silviculture




Channel Erosion

Erosion/Siltation



Natural Sources


Sodium 18 2019

Miles




Natural Sources


Carson River, West Fork (Paynesville to State Line)

6 R 63310013

Pathogens 3.3 2019

Miles


Agriculture-storm runoff

Agriculture-irrigation tailwater

Page 5 of 26


WATERSHED ESTIMATED


SOURCES





Carson River, West Fork (Woodfords to Paynesville)

6 R 63310012

Nitrogen 3.6 2019Revision of standards may be considered.

Miles




Agriculture-subsurface drainage


Silviculture





Channel Erosion

Erosion/Siltation



Natural Sources


Pathogens 3.6 2019

Miles


Agricultural Return Flows

Natural Sources


Page 6 of 26


WATERSHED ESTIMATED


SOURCES





Sodium 3.6 2019

Miles



Agriculture-grazing





Natural Sources


Clearwater Creek6 R 63040051Sedimentation/Siltation 12 2006

Listed on basis of limited information; additional monitoring may support delisting.Miles




Crowley Lake6 L 60310090Ammonia 4861 2019

Acres

Source Unknown

Oxygen, Dissolved 4861 2019

Acres

Source Unknown

Donner Lake6 L 63520021Priority Organics 819 2019

OEHHA is studying the lake to determine whether a fish consumption advisory is needed. There may be a 6 to 13 year period for TMDL development.

Acres

Source Unknown

Page 7 of 26


WATERSHED ESTIMATED


SOURCES





Eagle Lake (Lassen County)6 L 63732000Nitrogen 20704 2019

Acres

Agriculture


Silviculture

Other Urban Runoff


Wastewater






Natural Sources


Nonpoint Source

Phosphorus 20704 2019

Acres


Silviculture

Other Urban Runoff


Wastewater






Natural Sources


Nonpoint Source

Page 8 of 26


WATERSHED ESTIMATED


SOURCES





East Walker River, above Bridgeport Reservoir

6 R 63030050

Pathogens 7.2 2019

Miles


Other Urban Runoff

Natural Sources


East Walker River, below Bridgeport Reservoir

6 R 63030050

Nitrogen 8 2019

Miles





Upstream Impoundment



Erosion/Siltation


Natural Sources

Phosphorus 8 2019

Miles



Other Urban Runoff





Erosion/Siltation


Natural Sources

Page 9 of 26


WATERSHED ESTIMATED


SOURCES





Sedimentation/Siltation 8 2019

Miles



Urban Runoff--Erosion and Sedimentation


Erosion/Siltation

General Creek6 R 63420030Iron 9.1 2019

Miles

Silviculture

Natural Sources

Phosphorus 9.1 2019

Miles

Erosion/Siltation


Natural Sources

Gray Creek (Nevada County)6 R 63520052Sedimentation/Siltation 2.8 2006

Sediment from disturbance of naturally highly erosive watershed.Miles

Silviculture

Natural Sources

Nonpoint Source

Haiwee Reservoir6 L 62410071Copper 1703 2004

Copper problems related to algicide used to prevent taste/odor problems in drinking water supplies. TMDL development in progress. A determination of whether or not this water body is a water of the United States will be made by the Regional Water Quality Control Board.

Acres

Other

Page 10 of 26


WATERSHED ESTIMATED


SOURCES





Heavenly Valley Creek (source to USFS boundary)

6 R 63410031

Chloride 2 2019Chloride standard may be revised.

Miles



Natural Sources

Source Unknown

Phosphorus 2 2019

Miles

Erosion/Siltation


Natural Sources


Heavenly Valley Creek (USFS boundary to Trout Creek)

6 R 63410031

Chloride 1.4 2019

Miles



Natural Sources

Source Unknown

Sedimentation/Siltation 1.4 2019

Miles


Land Development

Hydromodification



Nonpoint Source

Page 11 of 26


WATERSHED ESTIMATED


SOURCES





Honey Lake6 S 63710060Arsenic 57756 2019

Arsenic is ultimately from natural sources, but lake is affected by geothermal discharges. Further study needed to determine need for TMDL.

Acres

Geothermal Development


Natural Sources

Nonpoint Source

Salinity/TDS/Chlorides 57756 2019Further study needed to determine extent of impairment and need for TMDL.

Acres

Agriculture



Agricultural Water Diversion


Natural Sources

Nonpoint Source

Honey Lake Area Wetlands6 W 63710060Metals 62590 2019

Additional monitoring needed to determine extent of impairment and need for TMDLAcres

Agriculture


Natural Sources

Nonpoint Source

Honey Lake Wildfowl Management Ponds6 S 63720095Metals 665 2019

Further monitoring needed to determine extent of impairment and need for TMDL.Acres

Agriculture


Natural Sources

Salinity/TDS/Chlorides 665 2019Further monitoring needed to determine extent of impairment and need for TMDL.

Acres

Agriculture


Natural Sources

Page 12 of 26


WATERSHED ESTIMATED


SOURCES





Trace Elements 665 2019Further monitoring needed to determine extent of impairment and need for TMDL.

Acres


Nurseries

Hot Springs Canyon Creek6 R 63030042Sedimentation/Siltation 2.9 2008

Listed on basis of limited data; further monitoring may support delisting.Miles


Indian Creek (Alpine County)6 R 63220010Pathogens 13 2019

Miles



Mammoth Creek6 R 60310053Mercury 12 2019

Miles

Source Unknown

Metals 12 2019Needs monitoring to determine current extent of impairment and need for TMDL.

Miles

Other Urban Runoff

Natural Sources

Nonpoint Source

Monitor Creek6 R 63210070Aluminum 4 2019

TMDL to be coordinated with CERCLA remediation.Miles

Mill Tailings

Mine Tailings

Acid Mine Drainage

Inactive Mining

Natural Sources

Nonpoint/Point Source

Page 13 of 26


WATERSHED ESTIMATED


SOURCES





Iron 4 2019TMDL to be coordinated with CERCLA remediation.

Miles

Mill Tailings

Mine Tailings

Acid Mine Drainage

Inactive Mining

Natural Sources


Manganese 4 2019TMDL to be coordinated with CERCLA remediation.

Miles

Mill Tailings

Mine Tailings

Acid Mine Drainage

Inactive Mining

Natural Sources


Silver 4 2019TMDL to be coordinated with CERCLA remediation.

Miles

Mill Tailings

Mine Tailings

Acid Mine Drainage

Inactive Mining

Natural Sources

Nonpoint Source

Sulfates 4 2019TMDL to be coordinated with CERCLA remediation.

Miles

Mill Tailings

Mine Tailings

Acid Mine Drainage

Inactive Mining


Page 14 of 26


WATERSHED ESTIMATED


SOURCES





Total Dissolved Solids 4 2019TMDL to be coordinated with CERCLA remediation.

Miles

Mill Tailings

Mine Tailings

Acid Mine Drainage

Inactive Mining

Natural Sources


Pleasant Valley Reservoir6 L 60320000Organic Enrichment/Low Dissolved Oxygen 99 2019Acres


Nonpoint Source

Robinson Creek (Hwy 395 to Bridgeport Res)

6 R 63030050

Pathogens 1.8 2019

Miles




Natural Sources


Robinson Creek (Twin Lakes to Hwy 395)6 R 63030050Pathogens 9.1 2019

Miles



Natural Sources


Page 15 of 26


WATERSHED ESTIMATED


SOURCES





Squaw Creek6 R 63520011Sedimentation/Siltation 5.8 2006

Miles


Other Urban Runoff

Hydromodification

Drainage/Filling Of Wetlands


Natural Sources


Nonpoint Source

Susan River6 R 63720095Mercury 58 2019

Miles

Source Unknown

Unknown Toxicity 58 2007

Miles

Source Unknown

Swauger Creek6 R 63040012Pathogens 14 2019

Miles




Natural Sources


Page 16 of 26


WATERSHED ESTIMATED


SOURCES





Phosphorus 14 2019

Miles




Surface Runoff


Erosion/Siltation


Natural Sources

Nonpoint Source

Page 17 of 26


WATERSHED ESTIMATED


SOURCES





Tahoe, Lake6 L 63430010Nitrogen 85364 2007

Acres


Silviculture


Land Development

Urban Runoff/Storm Sewers

Urban Runoff--Non-industrial Permitted

Other Urban Runoff


Surface Runoff


Hydromodification




Drainage/Filling Of Wetlands

Channel Erosion

Erosion/Siltation





Natural Sources


Golf course activities

Groundwater Loadings

Page 18 of 26


WATERSHED ESTIMATED


SOURCES






Acres


Silviculture

Highway/Road/Bridge Construction

Land Development



Other Urban Runoff




Channel Erosion

Erosion/Siltation





Natural Sources


Nonpoint Source

Page 19 of 26


WATERSHED ESTIMATED


SOURCES






Acres


Silviculture


Land Development


Other Urban Runoff



Hydromodification

Channelization



Channel Erosion

Erosion/Siltation



Natural Sources


Nonpoint Source

Tallac Creek (below Hwy 89)6 R 63410041Pathogens 1.3 2019Miles


Pasture Grazing-Riparian

Trout Creek (above Hwy 50)6 R 63410020Iron 10 2019

Standards revision to be consideredMiles


Erosion/Siltation

Natural Sources

Page 20 of 26


WATERSHED ESTIMATED


SOURCES





Nitrogen 10 2019Nitrogen loading from creek to be addressed during development of Lake Tahoe TMDL, but a more specific TMDL may be needed for Trout Creek.

Miles



Erosion/Siltation


Pathogens 10 2019Miles

Source Unknown

Phosphorus 10 2019Phosphorus loading from creek to be considered during development of Lake Tahoe TMDL, but a more specific TMDL may be needed for Trout Creek.

Miles



Erosion/Siltation


Trout Creek (below Hwy 50)6 R 63410042Iron 0.78 2019Miles


Erosion/Siltation

Natural Sources

Nitrogen 0.78 2019Nitrogen loading from creek to be addressed during development of Lake Tahoe TMDL, but a more specific TMDL may be needed for Trout Creek.

Miles


Erosion/Siltation


Pathogens 0.78 2019Miles

Pasture Grazing-Riparian

Natural Sources


Transient encampments

Page 21 of 26


WATERSHED ESTIMATED


SOURCES





Phosphorus 0.78 2019Phosphorus loading from creek to be addressed during development of Lake Tahoe TMDL, but a more specific TMDL may be needed for Trout Creek.

Miles


Erosion/Siltation


Truckee River6 R 63510010Sedimentation/Siltation 39 2006

Watershed disturbance including ski resorts, silvicultural activities, urban development, reservoir construction and management; highly erosive subwatersheds.

Miles


Silviculture




Channel Erosion

Erosion/Siltation

Natural Sources


Snow skiing activities

Nonpoint Source

Truckee River, Upper (above Christmas Valley)

6 R 63410010

Iron 4.5 2019

Miles

Natural Sources

Pathogens 4.5 2019

Miles


Natural Sources


Page 22 of 26


WATERSHED ESTIMATED


SOURCES





Phosphorus 4.5 2019Phosphorus loading from river to be addressed during development of Lake Tahoe TMDL, but a more specific TMDL may be needed for the Upper Truckee River.

Miles


Silviculture

Natural Sources

Truckee River, Upper (below Christmas Valley)

6 R 63410042

Iron 11 2019

Miles

Erosion/Siltation

Natural Sources

Unknown Nonpoint Source

Phosphorus 11 2019Phosphorus loading from river to be addressed in development of Lake Tahoe TMDL, but a more specific TMDL may be needed for the Upper Truckee River.

Miles

Silviculture


Hydromodification

Channelization



Erosion/Siltation



Natural Sources


Twin Lakes (Owens HU)6 L 60310051Nitrogen 26 2019

Monitoring needed to confirm extent of impairment and need for TMDL.Acres

Agriculture



Land Development

Other Urban Runoff


Page 23 of 26


WATERSHED ESTIMATED


SOURCES





Phosphorus 26 2019Monitoring needed to confirm degree of impairment and need for TMDL.

Acres

Agriculture



Land Development

Other Urban Runoff

Ward Creek6 R 63420020Iron 5.7 2015

Miles

Silviculture

Other Urban Runoff


Channel Erosion

Erosion/Siltation

Natural Sources

Nitrogen 5.7 2008Nitrogen loading from creek to be addressed during development of Lake Tahoe TMDL, but a more specific TMDL may be needed for Ward Creek.

Miles

Silviculture

Other Urban Runoff


Channel Erosion

Erosion/Siltation


Natural Sources

Page 24 of 26


WATERSHED ESTIMATED


SOURCES





Phosphorus 5.7 2008Phosphorus loading from creek to be addressed during development of Lake Tahoe TMDL, but a more specific TMDL may be needed for Ward Creek.

Miles

Silviculture

Other Urban Runoff



Channel Erosion

Erosion/Siltation


Natural Sources


Miles

Silviculture

Land Development



Channel Erosion

Nonpoint Source

Wolf Creek (Alpine County)6 R 63210031Sedimentation/Siltation 12 2019Miles


Silviculture

Nonpoint Source

Page 25 of 26


WATERSHED ESTIMATED


SOURCES





"Calwater Watershed" is the State Water Resources Control Board hydrological subunit area or an even smaller area delineation.CALWATER WATERSHED

ABBREVIATIONS

GROUP A PESTICIDES OR CHEM A

aldrin, dieldrin, chlordane, endrin, heptachlor, heptachlor epoxide, hexachlorocyclohexane (including lindane), endosulfan, and toxaphene

WATER BODY TYPE

B = Bays and HarborsC = Coastal Shorelines/BeachesE = EstuariesL = Lakes/ReserviorsR = Rivers and StreamsS = Saline LakesT = Wetlands, TidalW= Wetlands, Freshwater

REGIONAL WATER QUALITY CONTROL BOARDS

1 North Coast2 San Francisco Bay3 Central Coast4 Los Angeles5 Central Valley6 Lahontan7 Colorado River Basin8 Santa Ana9 San Diego

Page 26 of 26


Attachment A-2 Los Angeles RWQCB Basin Plan 303(d) List


WATERSHED ESTIMATED


SOURCES




LOS ANGELES REGIONAL WATER QUALITY CONTROL BOARD

Abalone Cove Beach4 C 40511000DDT (sediment) 1.1 2019

Miles

Nonpoint Source

PCBs (Polychlorinated biphenyls) 1.1 2019Fish Consumption Advisory for PCBs.

Miles

Nonpoint Source

Alamitos Bay4 B 40512000Indicator bacteria 328 2019

This listing was made by USEPA for 2006. The listing includes the area of Alamitos Bay at Shorefloat, 1st St. and Bayshore, 2nd St. Bridge and Bayshore, 56th Place - bayside.

Acres

Source Unknown

Aliso Canyon Wash4 R 40521000Copper 10 2019

Miles

Source Unknown

Fecal Coliform 10 2019

Miles

Source Unknown

Amarillo Beach4 C 40431000DDT 0.64 2019

Fish Consumption Advisory for DDT.Miles

Nonpoint Source


Miles

Nonpoint Source

Arroyo Seco Reach 1 (LA River to West Holly Ave.)

4 R 40515010

Coliform Bacteria 5.2 2009

Miles

Nonpoint Source

Trash 5.2 2007

Miles

Nonpoint Source

Page 1 of 50


WATERSHED ESTIMATED


SOURCES





Arroyo Seco Reach 2 (Figueroa St. to Riverside Dr.)

4 R 40515010


Miles

Nonpoint Source

Trash 4.4 2007

Miles

Nonpoint Source

Avalon Beach4 C 40511000Indicator bacteria 0.67 2019

Area affected is between Pier and BB restaurant (2/3), between Pier and BB restaurant (1/3), between storm drain and Pier (1/3). and between BB restaurant and the Tuna Club.

Miles


Ballona Creek4 R 40513000Cadmium (sediment) 6.5 2005

Miles


Cyanide 6.5 2019

Miles

Source Unknown

Silver (sediment) 6.5 2005

Miles

Nonpoint Source

Ballona Creek Estuary4 R 40513000Shellfish Harvesting Advisory 2.3 2006

Miles


Ballona Creek Wetlands4 T 40517000Exotic Vegetation 289 2019

Acres

Nonpoint Source

Habitat alterations 289 2019

Acres

Nonpoint Source

Hydromodification 289 2019

Acres

Nonpoint Source

Page 2 of 50


WATERSHED ESTIMATED


SOURCES





Reduced Tidal Flushing 289 2019

Acres

Nonpoint Source

Bell Creek4 R 40521000Coliform Bacteria 8.9 2009Miles


Big Rock Beach4 C 40431000DDT 0.74 2019


Nonpoint Source


Miles

Nonpoint Source

Bluff Cove Beach4 C 40511000DDT 0.55 2019


Nonpoint Source


Miles

Nonpoint Source

Brown Barranca/Long Canyon4 R 40321000Nitrate and Nitrite 2.6 2003Miles

Nonpoint Source

Burbank Western Channel4 R 40521000Cyanide 13 2019

Miles

Source Unknown

Trash 13 2002

Miles


Cabrillo Beach (Outer)4 C 40512000DDT 0.58 2019

Fish consumption advisory for DDT.Miles

Nonpoint Source

Page 3 of 50


WATERSHED ESTIMATED


SOURCES





PCBs (Polychlorinated biphenyls) 0.58 2019Fish consumption advisory for PCBs.

Miles

Nonpoint Source

Calleguas Creek Reach 1 (was Mugu Lagoon on 1998 303(d) list)

4 E 40311000

Endosulfan (tissue) 344 2005For 2006, endosulfan (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Acres

Nonpoint Source

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

4 R 40312000

ChemA (tissue) 4.3 2005Historical use of pesticides and lubricants. For 2006, ChemA (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Endosulfan (tissue) 4.3 2005For 2006, endosulfan (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Fecal Coliform 4.3 2006Area affected is at the mouth of the creek.

Miles


Sedimentation/Siltation 4.3 2005For 2006, sedimentation/siltation was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Agriculture

Natural Sources

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

4 R 40312000

Chloride 3.5 2002

Miles



Miles

Agriculture

Natural Sources

Page 4 of 50


WATERSHED ESTIMATED


SOURCES





Total Dissolved Solids 3.5 2019

Miles


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

4 R 40311000

Boron 7.2 2019This listing was made by USEPA.

Miles

Nonpoint Source

ChemA (tissue) 7.2 2005Historical use of pesticides and lubricants. For 2006, ChemA (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Endosulfan (tissue & sediment) 7.2 2005For 2006, endosulfan (tissue & sediment) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Fecal Coliform 7.2 2006

Miles



Miles

Agriculture

Natural Sources

Sulfates 7.2 2019This listing was made by USEPA.

Miles

Nonpoint Source

Total Dissolved Solids 7.2 2019This listing was made by USEPA.

Miles

Nonpoint Source

Trash 7.2 2019

Miles

Nonpoint Source

Page 5 of 50


WATERSHED ESTIMATED


SOURCES





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

4 R 40311000

ChemA (tissue) 4.3 2005For 2006, ChemA was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Dacthal (sediment) 4.3 2005For 2006, dacthal (sediment) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Endosulfan (tissue & sediment) 4.3 2005For 2006, endosulfan (tissue & sediment) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source


Miles

Agriculture

Natural Sources

Trash 4.3 2019

Miles

Nonpoint Source

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

4 R 40362000

Chloride 15 2002

Miles



Miles


Sedimentation/Siltation 15 2005For 2006, sedimentation/siltation was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Agriculture

Natural Sources

Sulfates 15 2019

Miles


Page 6 of 50


WATERSHED ESTIMATED


SOURCES





Total Dissolved Solids 15 2019

Miles


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

4 R 40367000

Boron 14 2019

Miles

Nonpoint Source

Chloride 14 2002

Miles

Nonpoint Source


Miles

Nonpoint Source

Sedimentation/Siltation 14 2005For 2006, sedimentation/siltation was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Agriculture

Natural Sources

Sulfates 14 2019

Miles

Nonpoint Source


Miles

Nonpoint Source

Calleguas Creek Reach 8 (was Tapo Canyon Reach 1)

4 R 40366000

Boron 7.2 2019

Miles


Chloride 7.2 2002

Miles



Miles

Nonpoint Source

Page 7 of 50


WATERSHED ESTIMATED


SOURCES





Sulfates 7.2 2019

Miles



Miles


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

4 R 40312000

ChemA (tissue) 1.7 2005For 2006, ChemA (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source


Miles

Nonpoint Source


Miles


Lindane/Hexachlorocyclohexane/HCH (tissue) 1.7 2005Historical use of pesticides and lubricants. For 2006, lindane/hexachlorocyclohexane/HCH (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Sulfates 1.7 2019

Miles



Miles


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

4 R 40363000


Miles

Nonpoint Source

Chloride 6.2 2002

Miles


Page 8 of 50


WATERSHED ESTIMATED


SOURCES






Miles

Nonpoint Source


Miles


Sulfates 6.2 2019

Miles



Miles


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)

4 R 40364000

ChemA (tissue) 3 2005For 2006, ChemA (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Chloride 3 2019

Miles



Miles

Nonpoint Source


Miles

Nonpoint Source

Sulfates 3 2019

Miles

Nonpoint Source


Miles


Page 9 of 50


WATERSHED ESTIMATED


SOURCES





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

4 R 40365000


Miles

Nonpoint Source


Miles

Nonpoint Source


Miles



Miles

Agriculture

Natural Sources

Sulfates 8.7 2019

Miles



Miles


Calleguas Creek Reach 12 (was Conejo Creek/Arroyo Conejo North Fork on 1998 303d list)

4 R 40364000

Sulfates 5.5 2019

Miles



Miles


Page 10 of 50


WATERSHED ESTIMATED


SOURCES





Calleguas Creek Reach 13 (Conejo Creek South Fork, was Conejo Cr Reach 4 and part of Reach 3 on 1998 303d list)

4 R 40368000

ChemA (tissue) 17 2005For 2006, ChemA (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Miles

Nonpoint Source

Chloride 17 2002

Miles



Miles

Nonpoint Source

Sulfates 17 2019

Miles



Miles


Canada Larga (Ventura River Watershed)4 R 40210010Fecal Coliform 8 2019

Horse stables, land use, cattle, and wildlife may be sources.Miles

Nonpoint Source

Low Dissolved Oxygen 8 2019Miles

Nonpoint Source

Carbon Beach4 C 40416000DDT 1.5 2019


Nonpoint Source


Miles

Nonpoint Source

Castlerock Beach4 C 40513000DDT 0.21 2019


Nonpoint Source

Page 11 of 50


WATERSHED ESTIMATED


SOURCES






Miles

Nonpoint Source

Channel Islands Harbor4 B 40311000Lead (sediment) 209 2019Acres

Nonpoint Source

Zinc (sediment) 209 2019Acres

Nonpoint Source

Channel Islands Harbor Beach 4 C 40311000Indicator bacteria 0.08 2019Miles


Colorado Lagoon4 T 40512000Chlordane (tissue & sediment) 13 2019

Acres

Nonpoint Source

DDT (tissue) 13 2019

Acres

Nonpoint Source

Dieldrin (tissue) 13 2019

Acres

Nonpoint Source

Indicator bacteria 13 2019This listing was made by USEPA for 2006. This listing includes the north, center, and south areas of the lagoon.

Acres

Source Unknown

Lead (sediment) 13 2019

Acres

Nonpoint Source

PAHs (Polycyclic Aromatic Hydrocarbons) (sediment) 13 2019

Acres

Nonpoint Source

PCBs (Polychlorinated biphenyls) (tissue) 13 2019

Acres

Nonpoint Source

Sediment Toxicity 13 2019

Acres

Nonpoint Source

Page 12 of 50


WATERSHED ESTIMATED


SOURCES





Zinc (sediment) 13 2019

Acres

Nonpoint Source

Compton Creek4 R 40515010Coliform Bacteria 8.5 2009

Miles


Trash 8.5 2019

Miles

Source Unknown

Coyote Creek4 R 40515010Coliform Bacteria 13 2019

Miles


Copper, Dissolved 13 2006

Miles

Nonpoint Source

Diazinon 13 2019

Miles

Source Unknown

Lead 13 2007This listing was made by USEPA for 2006.

Miles

Source Unknown

pH 13 2019

Miles

Source Unknown

Toxicity 13 2008This listing was made by USEPA for 2002.

Miles

Point Source

Zinc 13 2007This listing was made by USEPA for 2006.

Miles

Source Unknown

Crystal Lake4 L 40543000Organic Enrichment/Low Dissolved Oxygen 3.7 2019Acres

Nonpoint Source

Page 13 of 50


WATERSHED ESTIMATED


SOURCES





Dominguez Channel (lined portion above Vermont Ave)

4 R 40351000

Ammonia 6.7 2019

Miles


Copper 6.7 2019

Miles


Dieldrin (tissue) 6.7 2019

Miles


Indicator bacteria 6.7 2007

Miles


Lead (tissue) 6.7 2019

Miles


Sediment Toxicity 6.7 2019

Miles

Source Unknown

Zinc (sediment) 6.7 2019

Miles


Dominguez Channel Estuary (unlined portion below Vermont Ave)

4 E 40512000

Ammonia 140 2019

Acres


Benthic Community Effects 140 2019

Acres


Benzo(a)pyrene (PAHs) 140 2019

Acres

Source Unknown

Benzo[a]anthracene 140 2019

Acres

Source Unknown

Page 14 of 50


WATERSHED ESTIMATED


SOURCES





Chlordane (tissue) 140 2019

Acres


Chrysene (C1-C4) 140 2019

Acres

Source Unknown

Coliform Bacteria 140 2007

Acres


DDT (tissue & sediment) 140 2019

Acres


Dieldrin (tissue) 140 2019

Acres


Lead (tissue) 140 2019

Acres


PCBs (Polychlorinated biphenyls) 140 2019

Acres

Source Unknown

Phenanthrene 140 2019

Acres

Source Unknown

Pyrene 140 2019

Acres

Source Unknown


Acres


Dry Canyon Creek4 R 40521000Fecal Coliform 3.9 2009

Miles


Natural Sources

Page 15 of 50


WATERSHED ESTIMATED


SOURCES





Echo Park Lake4 L 40515010Algae 13 2019

Acres

Nonpoint Source

Ammonia 13 2019

Acres

Nonpoint Source

Copper 13 2019

Acres

Nonpoint Source

Eutrophic 13 2019

Acres

Nonpoint Source

Lead 13 2019

Acres

Nonpoint Source

Odor 13 2019

Acres

Nonpoint Source

PCBs (Polychlorinated biphenyls) (tissue) 13 2019

Acres

Nonpoint Source

pH 13 2019

Acres

Nonpoint Source

Trash 13 2007

Acres

Source Unknown

El Dorado Lakes4 L 40515010Algae 35 2019Acres

Nonpoint Source

Ammonia 35 2019Acres

Nonpoint Source

Copper 35 2019Acres

Nonpoint Source

Page 16 of 50


WATERSHED ESTIMATED


SOURCES





Eutrophic 35 2019Acres

Nonpoint Source

Lead 35 2019Acres

Nonpoint Source

Mercury (tissue) 35 2019Acres

Nonpoint Source

pH 35 2019Acres

Nonpoint Source

Elizabeth Lake4 L 40351000Eutrophic 123 2019Acres

Nonpoint Source

Organic Enrichment/Low Dissolved Oxygen 123 2019Acres

Nonpoint Source

pH 123 2019Acres

Nonpoint Source

Trash 123 2019Acres

Nonpoint Source

Escondido Beach4 C 40434000DDT 1.2 2019


Nonpoint Source


Miles

Nonpoint Source

Flat Rock Point Beach Area4 C 40511000DDT 0.11 2019


Nonpoint Source


Miles

Nonpoint Source

Page 17 of 50


WATERSHED ESTIMATED


SOURCES





Fox Barranca (tributary to Calleguas Creek Reach 6)

4 R 40362000

Boron 6.7 2019

Miles

Nonpoint Source

Sulfates 6.7 2019

Miles

Nonpoint Source


Miles

Nonpoint Source

Hobie Beach (Channel Islands Harbor)4 C 40311000Indicator bacteria 0.06 2019Miles


Hopper Creek4 R 40341000Sulfates 13 2019Miles


Total Dissolved Solids 13 2019Miles


Inspiration Point Beach4 C 40511000DDT 0.14 2019


Nonpoint Source

PCBs (Polychlorinated biphenyls) 0.14 2019Fish Consumption Advisroy for PCBs.

Miles

Nonpoint Source

La Costa Beach4 C 40416000DDT 0.74 2019


Nonpoint Source


Miles

Nonpoint Source

Page 18 of 50


WATERSHED ESTIMATED


SOURCES





Lake Calabasas4 L 40521000Ammonia 18 2006Acres

Nonpoint Source

DDT (tissue) 18 2019Acres

Nonpoint Source


Nonpoint Source

Odor 18 2019Acres

Nonpoint Source


Nonpoint Source

pH 18 2019Acres

Nonpoint Source

Lake Hughes4 L 40351000Algae 21 2019Acres

Nonpoint Source


Nonpoint Source

Fish Kills 21 2019Acres

Nonpoint Source

Odor 21 2019Acres

Nonpoint Source

Trash 21 2019Acres

Nonpoint Source

Lake Lindero4 L 40423000Algae 15 2006

Acres

Nonpoint Source

Chloride 15 2019

Acres

Nonpoint Source

Eutrophic 15 2006

Acres

Nonpoint Source

Page 19 of 50


WATERSHED ESTIMATED


SOURCES





Odor 15 2006

Acres

Nonpoint Source

Selenium 15 2019

Acres

Source Unknown

Specific Conductivity 15 2019

Acres

Nonpoint Source

Trash 15 2019

Acres

Nonpoint Source

Lake Sherwood4 L 40426000Algae 135 2006Acres

Nonpoint Source


Nonpoint Source


Nonpoint Source


Nonpoint Source


Nonpoint Source

Las Flores Beach4 C 40415000DDT 1.1 2019

Fish Consumption Advisory for DDT.

Miles

Nonpoint Source


Miles

Nonpoint Source

Las Tunas Beach4 C 40412000DDT 1.2 2019


Nonpoint Source

Page 20 of 50


WATERSHED ESTIMATED


SOURCES






Miles

Nonpoint Source

Las Virgenes Creek4 R 40422010Nutrients (Algae) 12 2006

Miles

Nonpoint Source

Organic Enrichment/Low Dissolved Oxygen 12 2006

Miles

Nonpoint Source

Scum/Foam-unnatural 12 2006

Miles

Nonpoint Source


Miles

Source Unknown

Selenium 12 2019

Miles

Nonpoint Source

Trash 12 2019

Miles

Nonpoint Source

Legg Lake4 L 40531000Ammonia 25 2019Acres

Nonpoint Source

Copper 25 2019Acres

Nonpoint Source

Lead 25 2019Acres

Nonpoint Source

Odor 25 2019Acres

Nonpoint Source

pH 25 2019Acres

Nonpoint Source

Trash 25 2019Acres

Nonpoint Source

Page 21 of 50


WATERSHED ESTIMATED


SOURCES





Lincoln Park Lake4 L 40515010Ammonia 3.8 2019

Acres

Nonpoint Source

Eutrophic 3.8 2019

Acres

Nonpoint Source

Lead 3.8 2019

Acres

Nonpoint Source

Odor 3.8 2019

Acres

Nonpoint Source

Organic Enrichment/Low Dissolved Oxygen 3.8 2019

Acres

Nonpoint Source

Trash 3.8 2007

Acres

Source Unknown

Lindero Creek Reach 14 R 40423000Algae 3 2006

Miles

Nonpoint Source


Miles

Nonpoint Source

Selenium 3 2019

Miles

Nonpoint Source

Trash 3 2019

Miles

Nonpoint Source

Lindero Creek Reach 2 (Above Lake)4 R 40425000Algae 4.5 2006

Miles

Nonpoint Source

Page 22 of 50


WATERSHED ESTIMATED


SOURCES





Scum/Foam-unnatural 4.5 2006

Miles

Nonpoint Source

Selenium 4.5 2019

Miles

Nonpoint Source

Trash 4.5 2019

Miles

Nonpoint Source

Long Beach City Beach4 C 40512000Indicator bacteria 4.7 2019

This listing was made by USEPA for 2006. This listing includes the beach area at 3rd Place, 5th, 10th, 16th, 36th, 54th, 55th, 62nd, and 72nd Streets, Coronado Ave., Granada Ave., Molina Ave., and Prospect Ave..

Miles

Source Unknown

Long Point Beach4 C 40511000DDT 0.7 2019


Nonpoint Source


Miles

Nonpoint Source

Los Angeles Harbor - Cabrillo Marina4 B 40512000DDT 77 2019

Acres

Source Unknown


Acres

Source Unknown

Los Angeles Harbor - Consolidated Slip4 B 405120002-Methylnaphthalene 36 2008

This listing was made by USEPA for 2006.Acres

Source Unknown


Acres

Nonpoint Source

Page 23 of 50


WATERSHED ESTIMATED


SOURCES





Benzo(a)pyrene (PAHs) 36 2008This listing was made by USEPA for 2006.

Acres

Source Unknown

Benzo[a]anthracene 36 2008This listing was made by USEPA for 2006.

Acres

Source Unknown

Cadmium (sediment) 36 2019Historical use of pesticides and lubricants, stormwater runoff, aerial deposition, and historical discharges for metals.

Acres

Nonpoint Source

Chlordane (tissue & sediment) 36 2019

Acres

Nonpoint Source

Chromium (sediment) 36 2019

Acres

Nonpoint Source

Chrysene (C1-C4) 36 2008This listing was made by USEPA for 2006.

Acres

Source Unknown

Copper (sediment) 36 2019

Acres

Nonpoint Source

DDT (tissue & sediment) 36 2019Fish Consumption Advisory for DDT.

Acres

Nonpoint Source

Dieldrin 36 2008

Acres

Nonpoint Source

Lead (sediment) 36 2019

Acres

Nonpoint Source

Mercury (sediment) 36 2019Historical use of pesticides and lubricants, stormwater runoff, aerial deposition, and historical discharges for metals.

Acres

Nonpoint Source

PCBs (Polychlorinated biphenyls) (tissue & sediment) 36 2019Fish Consumption Advisory for PCBs.

Acres

Nonpoint Source

Page 24 of 50


WATERSHED ESTIMATED


SOURCES





Phenanthrene 36 2008This listing was made by USEPA for 2006.

Acres

Source Unknown

Pyrene 36 2008This listing was made by USEPA for 2006.

Acres

Source Unknown


Acres

Nonpoint Source

Toxaphene (tissue) 36 2019

Acres

Nonpoint Source

Zinc (sediment) 36 2019Historical use of pesticides and lubricants, stormwater runoff, aerial deposition, and historical discharges for metals.

Acres

Nonpoint Source

Los Angeles Harbor - Fish Harbor4 B 40518000Benzo(a)pyrene (PAHs) 91 2008

This listing was made by USEPA for 2006.Acres

Source Unknown

Benzo[a]anthracene 91 2019

Acres

Source Unknown

Chlordane 91 2019

Acres

Source Unknown

Chrysene (C1-C4) 91 2019

Acres

Source Unknown

Copper 91 2019

Acres

Source Unknown

DDT 91 2019

Acres

Nonpoint Source

Dibenz[a,h]anthracene 91 2019

Acres

Source Unknown

Page 25 of 50


WATERSHED ESTIMATED


SOURCES





Lead 91 2019

Acres

Source Unknown

Mercury 91 2019

Acres

Source Unknown

PAHs (Polycyclic Aromatic Hydrocarbons) 91 2019

Acres

Nonpoint Source


Acres

Nonpoint Source

Phenanthrene 91 2019

Acres

Source Unknown

Pyrene 91 2019

Acres

Source Unknown


Acres

Source Unknown

Zinc 91 2019

Acres

Source Unknown

Los Angeles Harbor - Inner Cabrillo Beach Area

4 B 40512000

Copper 82 2019

Acres

Source Unknown

DDT 82 2019Fish Consumption Advisory for DDT.

Acres

Nonpoint Source

PCBs (Polychlorinated biphenyls) 82 2019Fish Consumption Advisory for PCBs.

Acres

Nonpoint Source

Page 26 of 50


WATERSHED ESTIMATED


SOURCES





Los Angeles River Estuary (Queensway Bay)

4 E 40512000

Chlordane (sediment) 207 2019Historical use of pesticides and lubricants.

Acres

Nonpoint Source

DDT (sediment) 207 2019Historical use of pesticides and lubricants.

Acres

Nonpoint Source

Lead (sediment) 207 2019Historical use of pesticides and lubricants.

Acres

Nonpoint Source

PCBs (Polychlorinated biphenyls) (sediment) 207 2019Historical use of pesticides and lubricants.

Acres

Nonpoint Source


Acres

Source Unknown

Trash 207 2007

Acres

Source Unknown

Zinc (sediment) 207 2019Historical use of pesticides and lubricants.

Acres

Nonpoint Source

Los Angeles River Reach 1 (Estuary to Carson Street)

4 R 40512000


Miles


Cyanide 3.4 2019

Miles

Source Unknown

Diazinon 3.4 2019

Miles

Source Unknown

Trash 3.4 2007

Miles


Page 27 of 50


WATERSHED ESTIMATED


SOURCES





Los Angeles River Reach 2 (Carson to Figueroa Street)

4 R 40515010


Miles


Oil 19 2019

Miles

Nonpoint Source

Trash 19 2007

Miles


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

4 R 40521000

Trash 7.9 2007

Miles

Source Unknown

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

4 R 40521000


Miles


Trash 11 2007

Miles

Source Unknown

Los Angeles River Reach 5 ( within Sepulveda Basin)

4 R 40521000

Oil 1.9 2019

Miles


Trash 1.9 2007

Miles


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

4 R 40521000

1,1-Dichloroethane (1,1-DCE)/Vinylidene chloride 7 2019

Miles

Nonpoint Source

Page 28 of 50


WATERSHED ESTIMATED


SOURCES






Miles

Nonpoint Source

Tetrachloroethylene/PCE 7 2019

Miles

Nonpoint Source

Trichloroethylene/TCE 7 2019

Miles

Nonpoint Source

Los Angeles/Long Beach Inner Harbor4 B 40518000Beach Closures 3003 2004

Acres



Acres

Nonpoint Source

Copper 3003 2008This listing was made by USEPA for 2006.

Acres

Source Unknown

DDT 3003 2019Acres


PCBs (Polychlorinated biphenyls) 3003 2019Acres


Sediment Toxicity 3003 2019Acres


Zinc 3003 2008This listing was made by USEPA for 2006.

Acres

Source Unknown

Los Angeles/Long Beach Outer Harbor (inside breakwater)

4 B 40512000

DDT 4042 2019

Acres

Nonpoint Source


Acres

Nonpoint Source

Page 29 of 50


WATERSHED ESTIMATED


SOURCES





Sediment Toxicity 4042 2008This listing was made by USEPA for 2006.

Acres

Source Unknown

Los Cerritos Channel4 T 40515010Ammonia 31 2019

Acres

Nonpoint Source

Bis(2ethylhexyl)phthalate/DEHP 31 2019

Acres

Source Unknown

Chlordane (sediment) 31 2019

Acres

Source Unknown


Acres

Nonpoint Source

Copper 31 2019

Acres

Nonpoint Source

Lead 31 2019

Acres

Nonpoint Source

Trash 31 2019

Acres

Source Unknown

Zinc 31 2019

Acres

Nonpoint Source

Machado Lake (Harbor Park Lake)4 L 40512000Algae 45 2019Acres

Nonpoint Source


Nonpoint Source

ChemA (tissue) 45 2019Historical use of pesticides and lubricants.

Acres

Nonpoint Source

Page 30 of 50


WATERSHED ESTIMATED


SOURCES





Chlordane (tissue) 45 2019Fish Consumption Advisory.

Acres

Nonpoint Source

DDT (tissue) 45 2019Fish Consumption Advisory.

Acres

Nonpoint Source

Dieldrin (tissue) 45 2019Acres

Nonpoint Source


Nonpoint Source

Odor 45 2019Acres

Nonpoint Source

PCBs (Polychlorinated biphenyls) (tissue) 45 2019Acres

Nonpoint Source

Trash 45 2019Acres

Nonpoint Source

Malaga Cove Beach4 C 40511000DDT 0.39 2019


Nonpoint Source


Miles

Nonpoint Source

Malibou Lake4 L 40424000Algae 40 2006Acres

Nonpoint Source


Nonpoint Source


Nonpoint Source

Malibu Beach4 C 40421000DDT 0.77 2019


Nonpoint Source

Page 31 of 50


WATERSHED ESTIMATED


SOURCES





Malibu Creek4 R 40421000Fish Barriers (Fish Passage) 11 2019

Miles

Dam Construction

Nutrients (Algae) 11 2006

Miles



Miles



Miles

Source Unknown

Selenium 11 2019

Miles

Source Unknown

Sulfates 11 2019

Miles

Source Unknown

Trash 11 2019

Miles

Nonpoint Source

Malibu Lagoon4 E 40421000Benthic Community Effects 15 2019

Acres


Eutrophic 15 2006

Acres


pH 15 2006Possible sources might be septic systems, storm drains, and birds.

Acres

Source Unknown

Shellfish Harvesting Advisory 15 2005

Acres


Page 32 of 50


WATERSHED ESTIMATED


SOURCES





Swimming Restrictions 15 2005

Acres


Viruses (enteric) 15 2005

Acres


Malibu Lagoon Beach (Surfrider)4 C 40421000DDT 1 2019


Nonpoint Source

PCBs (Polychlorinated biphenyls) 1 2019Fish Consumption Advisory for PCBs.

Miles

Nonpoint Source

Marina del Rey Harbor - Back Basins4 B 40517000DDT (tissue) 391 2005

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

Acres

Nonpoint Source

Dieldrin (tissue) 391 2005For 2006, dieldrin (tissue) was moved by USEPA from the being addressed list back to the 303(d) list pending completion and USEPA approval of a TMDL.

Acres

Nonpoint Source

Matilija Creek Reach 1 (Jct. With N. Fork to Reservoir)

4 R 40220012

Fish Barriers (Fish Passage) 0.63 2019Miles

Dam Construction

Matilija Creek Reach 2 (Above Reservoir)4 R 40220010Fish Barriers (Fish Passage) 15 2019Miles

Dam Construction

Matilija Reservoir4 L 40220012Fish Barriers (Fish Passage) 121 2019Acres

Dam Construction

McCoy Canyon Creek4 R 40521000Fecal Coliform 4 2009

Miles

Nonpoint Source

Page 33 of 50


WATERSHED ESTIMATED


SOURCES





Nitrate 4 2019

Miles

Nonpoint Source

Nitrogen, Nitrate 4 2019

Miles


Natural Sources

McGrath Lake4 L 40311000Chlordane (sediment) 20 2019Acres

Nonpoint Source

DDT (sediment) 20 2019Acres

Nonpoint Source

Dieldrin (sediment) 20 2019Historical use of pesticides and lubricants, storm water runoff/aerial deposition from agricultural fields.

Acres

Nonpoint Source

Fecal Coliform 20 2019Acres

Agriculture

Landfills

Natural Sources

PCBs (Polychlorinated biphenyls) (sediment) 20 2019Historical use of pesticides and lubricants, storm water runoff/aerial deposition from agricultural fields.

Acres

Nonpoint Source


Nonpoint Source

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

4 R 40424000

Algae 2.6 2006

Miles

Nonpoint Source


Miles

Source Unknown

Selenium 2.6 2019

Miles

Nonpoint Source

Page 34 of 50


WATERSHED ESTIMATED


SOURCES





Trash 2.6 2019

Miles

Nonpoint Source

Medea Creek Reach 2 (Abv Confl. with Lindero)

4 R 40423000

Algae 5.4 2006

Miles

Nonpoint Source


Miles

Source Unknown

Selenium 5.4 2019

Miles

Nonpoint Source

Trash 5.4 2019

Miles

Nonpoint Source

Mint Canyon Creek Reach 1 (Confl to Rowler Cyn)

4 R 40351000

Nitrate and Nitrite 8.1 2004

Miles

Nonpoint Source

Munz Lake4 L 40351000Eutrophic 6.6 2019Acres

Nonpoint Source

Trash 6.6 2019Acres

Nonpoint Source

Nicholas Canyon Beach4 C 40444000DDT 1.7 2019


Nonpoint Source


Miles

Nonpoint Source

Page 35 of 50


WATERSHED ESTIMATED


SOURCES





Ormond Beach4 C 40311000Indicator bacteria 1.6 2008

This listing was made by USEPA for 2006. This listing includes the area of Ormond Beach at J St., Oxnard Drain, and Arnold Rd.

Miles

Source Unknown

Palo Verde Shoreline Park Beach4 C 40511000Pesticides 0.24 2019

Miles

Source Unknown

Paradise Cove Beach4 C 40435000DDT 1.7 2019


Nonpoint Source


Miles

Nonpoint Source

Peck Road Park Lake4 L 40531000Chlordane (tissue) 103 2019

Acres

Nonpoint Source

DDT (tissue) 103 2019

Acres

Nonpoint Source

Lead 103 2019

Acres

Nonpoint Source

Odor 103 2019

Acres

Nonpoint Source


Acres

Nonpoint Source

Trash 103 2007

Acres

Nonpoint Source

Page 36 of 50


WATERSHED ESTIMATED


SOURCES





Peninsula Beach4 C 40311000Indicator bacteria 0.2 2003

Area affected is beach area north of South Jetty.Miles


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

4 R 40342000

Chloride 67 2019

Miles

Source Unknown

pH 67 2019

Miles

Nonpoint Source

Conservation Discharge Releases

Point Dume Beach4 C 40435000DDT 2.5 2019


Nonpoint Source

PCBs (Polychlorinated biphenyls) 2.5 2019Fish consumtiion advisory for PCBs.

Miles

Nonpoint Source

Point Fermin Park Beach4 C 40512000DDT 1.6 2019


Nonpoint Source


Miles

Nonpoint Source

Pole Creek (trib to Santa Clara River Reach 3 )

4 R 40331000

Sulfates 9 2019Miles

Nonpoint Source

Total Dissolved Solids 9 2019Miles

Nonpoint Source

Port Hueneme Harbor (Back Basins)4 B 40311000DDT (tissue) 65 2019Acres

Nonpoint Source

Page 37 of 50


WATERSHED ESTIMATED


SOURCES






Nonpoint Source

Port Hueneme Pier4 C 40311000PCBs (Polychlorinated biphenyls) 0.33 2019

Miles

Source Unknown

Portuguese Bend Beach4 C 40511000DDT 1.4 2019


Nonpoint Source

PCBs (Polychlorinated biphenyls) 1.4 2019Fish Consumption Advisory for PCB.

Miles

Nonpoint Source

Puddingstone Reservoir4 L 40552000Chlordane (tissue) 243 2019Acres

Nonpoint Source

DDT (tissue) 243 2019Acres

Nonpoint Source


Nonpoint Source


Nonpoint Source


Nonpoint Source

Puerco Beach4 C 40431000DDT 0.5 2019


Nonpoint Source


Miles

Nonpoint Source

Redondo Beach4 C 40512000DDT 1.5 2019


Nonpoint Source

Page 38 of 50


WATERSHED ESTIMATED


SOURCES






Miles

Nonpoint Source

Rincon Beach4 C 40100010Indicator bacteria 0.09 2003

Area affected is 50 and 150 yards south of mouth of Rincon Creek, and at the end of the footpath.

Miles


Rio De Santa Clara/Oxnard Drain No. 34 R 40311000ChemA (tissue) 1.9 2019Miles

Nonpoint Source

Chlordane (tissue) 1.9 2019Miles

Nonpoint Source

DDT (tissue) 1.9 2019Miles

Nonpoint Source

Nitrogen 1.9 2019Miles

Nonpoint Source

PCBs (Polychlorinated biphenyls) (tissue) 1.9 2019Miles

Nonpoint Source

Sediment Toxicity 1.9 2019Miles

Nonpoint Source

Toxaphene (tissue) 1.9 2019Miles

Nonpoint Source

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

4 R 40515010


Miles


Trash 4.6 2007

Miles


Rio Hondo Reach 2 (At Spreading Grounds)4 R 40515010Coliform Bacteria 4.9 2009

Miles


Page 39 of 50


WATERSHED ESTIMATED


SOURCES





Robert H. Meyer Memorial Beach4 C 40441000Beach Closures 1.2 2019

Miles

Nonpoint Source

DDT 1.2 2019Fish Consumption Advisory for DDT.

Miles

Nonpoint Source


Miles

Nonpoint Source

Royal Palms Beach4 C 40511000DDT 1.1 2019


Nonpoint Source


Miles

Nonpoint Source

San Antonio Creek (Tributary to Ventura River Reach 4)

4 R 40220023

Nitrogen 9.8 2019Miles

Nonpoint Source

San Buenaventura Beach4 C 40210000Indicator bacteria 1.8 2008

This listing was made by USEPA for 2006. This listing includes the area of San Buenaventura Beach at Kalorama, San Jon Rd, Dover Lane, and Weymouth drains.

Miles

Source Unknown

San Gabriel River Estuary4 R 40516000Copper 3.4 2007

This listing was made by USEPA for 2006.Miles

Source Unknown

San Gabriel River Reach 1 (Estuary to Firestone)

4 R 40515010


Miles


Page 40 of 50


WATERSHED ESTIMATED


SOURCES





pH 6.4 2019

Miles

Source Unknown

San Gabriel River Reach 2 (Firestone to Whittier Narrows Dam

4 R 40515010


Miles


Lead 12 2019

Miles


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

4 R 40531000


Miles


Selenium 2.7 2007This listing was made by USEPA for 2006.

Miles

Source Unknown

Toxicity 2.7 2007This listing was made by USEPA for 2006.

Miles

Source Unknown

San Jose Creek Reach 2 (Temple to I-10 at White Ave.)

4 R 40531000


Miles


San Pedro Bay Near/Off Shore Zones4 B 40512000Chlordane 8173 2019

Acres

Source Unknown

Chromium (sediment) 8173 2019

Acres


Copper (sediment) 8173 2019

Acres


Page 41 of 50


WATERSHED ESTIMATED


SOURCES





DDT (tissue & sediment) 8173 2019Fish Consumption Advisory for DDT.

Acres


PAHs (Polycyclic Aromatic Hydrocarbons) (sediment) 8173 2019

Acres


PCBs (Polychlorinated biphenyls) 8173 2019Fish consumption advisory for PCBs.

Acres



Acres



Acres


Santa Clara River Estuary4 E 40311000ChemA 49 2019Acres

Source Unknown

Coliform Bacteria 49 2019Acres

Nonpoint Source

Toxaphene 49 2019Acres

Nonpoint Source

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

4 R 40311000

Toxicity 10 2019

Miles

Source Unknown

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

4 R 40331000


Miles


Page 42 of 50


WATERSHED ESTIMATED


SOURCES





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)

4 R 40351000


Miles


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)

4 R 40351000

Chlorpyrifos 5.2 2019

Miles

Source Unknown


Miles


Diazinon 5.2 2019

Miles

Source Unknown

Toxicity 5.2 2019

Miles

Source Unknown

Santa Clara River Reach 7 ( Bouquet Canyon Rd to above Lang Gaging Station) (was named Santa Clara River Reach 9 on 2002 303(d) list)

4 R 40351000


Miles


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

4 R 40341000

Boron 6.2 2019

Miles

Source Unknown

Sulfates 6.2 2019

Miles

Source Unknown

Page 43 of 50


WATERSHED ESTIMATED


SOURCES





Santa Fe Dam Park Lake4 L 40531000Copper 20 2019Acres

Nonpoint Source

Lead 20 2019Acres

Nonpoint Source

pH 20 2019Acres

Nonpoint Source

Santa Monica Bay Offshore/Nearshore4 B 40513000DDT (tissue & sediment) 146645 2019

Centered on Palos Verdes Shelf.Acres


Debris 146645 2019

Acres


Fish Consumption Advisory 146645 2019

Acres


PCBs (Polychlorinated biphenyls) (tissue & sediment) 146645 2019

Acres



Acres


Santa Monica Canyon4 R 40513000Lead 2.7 2019

Miles

Nonpoint Source

Sawpit Creek4 R 40531000Bis(2ethylhexyl)phthalate/DEHP 3.9 2019

Miles

Source Unknown


Miles

Source Unknown

Page 44 of 50


WATERSHED ESTIMATED


SOURCES





Sea Level Beach4 C 40441000DDT 0.21 2019


Nonpoint Source


Miles

Nonpoint Source

Sepulveda Canyon4 R 405.13Ammonia 0.83 2019

Miles

Nonpoint Source

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

4 R 40332020

Chloride 54 2019

Miles

Nonpoint Source

pH 54 2019

Miles

Nonpoint Source

Topanga Beach4 C 40413000DDT 2.5 2019


Nonpoint Source


Miles

Nonpoint Source

Topanga Canyon Creek4 R 40411000Lead 8.6 2019Miles

Nonpoint Source

Torrance Carson Channel4 R 40512000Coliform Bacteria 3.4 2007Miles

Nonpoint Source

Copper 3.4 2019Miles

Nonpoint Source

Page 45 of 50


WATERSHED ESTIMATED


SOURCES





Lead 3.4 2019Miles

Nonpoint Source

Trancas Beach (Broad Beach)4 C 40437000DDT 1.7 2019


Miles

Nonpoint Source


Miles

Nonpoint Source

Triunfo Canyon Creek Reach 14 R 40424000Lead 2.5 2019Miles

Nonpoint Source

Mercury 2.5 2019Miles

Nonpoint Source

Sedimentation/Siltation 2.5 2019Miles

Source Unknown

Triunfo Canyon Creek Reach 24 R 40424000Lead 3.3 2019Miles

Nonpoint Source

Mercury 3.3 2019Miles

Nonpoint Source


Source Unknown

Tujunga Wash (LA River to Hansen Dam)4 R 40521000Coliform Bacteria 9.7 2009

Miles

Nonpoint Source

Trash 9.7 2007

Miles

Nonpoint Source

Ventura Harbor: Ventura Keys4 B 40311000Coliform Bacteria 179 2019Acres

Nonpoint Source

Page 46 of 50


WATERSHED ESTIMATED


SOURCES





Ventura Marina Jetties4 C 40311000DDT 0.69 2019

Miles

Source Unknown

PCBs (Polychlorinated biphenyls) 0.69 2019

Miles

Source Unknown

Ventura River Estuary4 R 40210011Algae 0.2 2019Miles


Eutrophic 0.2 2019Miles


Total Coliform 0.2 2019Stables and horse property may be the sources.

Miles

Nonpoint Source

Trash 0.2 2019Miles


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

4 R 40210011

Algae 4.5 2019Miles


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

4 R 40210011

Pumping 2.8 2019Miles

Nonpoint Source

Water Diversion 2.8 2019Miles

Nonpoint Source

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

4 R 40220021

Pumping 19 2019Miles

Nonpoint Source

Water Diversion 19 2019Miles

Nonpoint Source

Page 47 of 50


WATERSHED ESTIMATED


SOURCES





Verdugo Wash Reach 1 (LA River to Verdugo Rd.)

4 R 40521000


Miles

Nonpoint Source

Trash 2 2007

Miles

Nonpoint Source

Verdugo Wash Reach 2 (Above Verdugo Road)

4 R 40524000


Miles

Nonpoint Source

Trash 7.6 2007

Miles

Nonpoint Source

Walnut Creek Wash (Drains from Puddingstone Res)

4 R 40531000

pH 12 2007

Miles


Toxicity 12 2007USEPA deferred action on this listing until 2008.

Miles


Westlake Lake4 L 40425000Algae 119 2006Acres

Nonpoint Source


Nonpoint Source


Nonpoint Source

Lead 119 2019Acres

Nonpoint Source


Nonpoint Source

Page 48 of 50


WATERSHED ESTIMATED


SOURCES





Wheeler Canyon/Todd Barranca4 R 40321000Sulfates 10 2019

Miles

Nonpoint Source


Miles

Nonpoint Source

Whites Point Beach4 C 40511000DDT 1.1 2019


Nonpoint Source


Miles

Nonpoint Source

Wilmington Drain4 R 40342000Ammonia 0.56 2019Miles

Nonpoint Source

Coliform Bacteria 0.56 2007Miles

Nonpoint Source

Copper 0.56 2019Miles

Nonpoint Source

Lead 0.56 2019Miles

Nonpoint Source

Zuma Beach (Westward Beach)4 C 40436000DDT 1.6 2019


Miles

Nonpoint Source


Miles

Nonpoint Source

Page 49 of 50


WATERSHED ESTIMATED


SOURCES






ABBREVIATIONS



WATER BODY TYPE




Page 50 of 50


Attachment A-3 Santa Ana RWQCB Basin Plan 303(d) List


WATERSHED ESTIMATED


SOURCES




SANTA ANA REGIONAL WATER QUALITY CONTROL BOARD

Anaheim Bay8 B 80111000Dieldrin (tissue) 402 2019

This listing was made by USEPA.Acres

Source Unknown

Nickel 402 2019This listing was made by USEPA.

Acres

Source Unknown

PCBs (Polychlorinated biphenyls) (tissue) 402 2019This listing was made by USEPA.

Acres

Source Unknown


Acres

Source Unknown

Balboa Beach8 C 80114000DDT 1.8 2019

Miles

Source Unknown

Dieldrin 1.8 2019

Miles

Source Unknown


Miles

Source Unknown

Big Bear Lake8 L 80171000Copper 2865 2007

Acres

Resource Extraction

Mercury 2865 2007

Acres

Resource Extraction

Metals 2865 2007

Acres

Resource Extraction

Noxious aquatic plants 2865 2006

Acres


Unknown point source

Page 1 of 9


WATERSHED ESTIMATED


SOURCES





Nutrients 2865 2006

Acres




Acres

Source Unknown


Acres




Bolsa Chica State Beach8 C 80111000Copper 2.6 2019

This listing was made by USEPA.Miles

Source Unknown

Nickel 2.6 2019This listing was made by USEPA.

Miles

Source Unknown

Buck Gully Creek8 R 80111000Fecal Coliform 0.3 2019

Listing is downstream of Pacific Coast Highway.Miles

Source Unknown

Total Coliform 0.3 2019Listing is downstream of Pacific Coast Highway.

Miles

Source Unknown

Canyon Lake (Railroad Canyon Reservoir)8 L 80211000Pathogens 453 2006

Acres

Nonpoint Source

Chino Creek Reach 18 R 80121000Nutrients 7.8 2019

Miles

Agriculture

Dairies

Page 2 of 9


WATERSHED ESTIMATED


SOURCES





Elsinore, Lake8 L 80231000PCBs (Polychlorinated biphenyls) 2431 2019

Acres

Source Unknown

Unknown Toxicity 2431 2007

Acres


Fulmor, Lake8 L 80221000Pathogens 4.2 2019Acres


Grout Creek8 R 80171000Metals 3.5 2007Miles


Nutrients 3.5 2008Miles


Huntington Beach State Park8 C 80111000Enterococcus 5.8 2019

Impaired 50 yards around drain at Magnolia St.Miles

Source Unknown

Indicator bacteria 5.8 2019This listing was made by USEPA for 2006. This listing for indicator bacteria applies to the area of the beach at Brookhurst St.

Miles

Source Unknown


Miles

Source Unknown

Huntington Harbour8 B 80111000Chlordane 221 2019

Acres

Source Unknown

Copper 221 2019This listing was made by USEPA.

Acres

Source Unknown

Lead 221 2019

Acres

Source Unknown

Page 3 of 9


WATERSHED ESTIMATED


SOURCES





Nickel 221 2019This listing was made by USEPA.

Acres

Source Unknown

Pathogens 221 2019

Acres


PCBs (Polychlorinated biphenyls) (tissue) 221 2019This listing was made by USEPA.

Acres

Source Unknown


Acres

Source Unknown

Knickerbocker Creek8 R 80171000Metals 2 2007

Miles


Pathogens 2 2005For 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.

Miles


Los Trancos Creek (Crystal Cove Creek)8 R 80111000Fecal Coliform 0.19 2019

Listing is downstream of Pacific Coast Highway.Miles

Source Unknown

Total Coliform 0.19 2019Listing is downstream of Pacific Coast Highway.

Miles

Source Unknown

Lytle Creek8 R 80141000Pathogens 41 2019Miles


Mill Creek (Prado Area)8 R 80121000Nutrients 1.6 2019

Miles

Agriculture

Dairies

Page 4 of 9


WATERSHED ESTIMATED


SOURCES





Total Suspended Solids (TSS) 1.6 2019

Miles

Dairies

Mill Creek Reach 18 R 80156000Pathogens 12 2019

Miles


Mill Creek Reach 28 R 80158000Pathogens 12 2019Miles


Mountain Home Creek8 R 80158000Pathogens 3.7 2019Miles


Mountain Home Creek, East Fork8 R 80158000Pathogens 5.1 2019Miles


Newport Bay, Lower8 B 80114000Chlordane 767 2019

Acres

Source Unknown

Copper 767 2007

Acres

Source Unknown

DDT 767 2019

Acres

Source Unknown


Acres

Source Unknown


Acres

Source Unknown

Page 5 of 9


WATERSHED ESTIMATED


SOURCES





Newport Bay, Upper (Ecological Reserve)8 E 80111000Chlordane 653 2019

Acres

Source Unknown

Copper 653 2007

Acres

Source Unknown

DDT 653 2019

Acres

Source Unknown

Metals 653 2019

Acres



Acres

Source Unknown


Acres

Source Unknown

Peters Canyon Channel8 R 80111000DDT 3 2019

Miles

Source Unknown

Toxaphene 3 2019

Miles

Source Unknown

Prado Park Lake8 L 80121000Nutrients 90 2019

Acres

Nonpoint Source

Rathbone (Rathbun) Creek8 R 80171000Nutrients 4.7 2008Miles



Page 6 of 9


WATERSHED ESTIMATED


SOURCES








Rhine Channel8 B 80114000Copper 20 2019

Acres

Source Unknown

Lead 20 2019

Acres

Source Unknown

Mercury 20 2019

Acres

Source Unknown


Acres

Source Unknown


Acres

Source Unknown

Zinc 20 2019

Acres

Source Unknown

San Diego Creek Reach 18 R 80111000Fecal Coliform 7.8 2019

Miles


Other Urban Runoff

Selenium 7.8 2007

Miles

Source Unknown

Toxaphene 7.8 2019

Miles

Source Unknown

Page 7 of 9


WATERSHED ESTIMATED


SOURCES





San Diego Creek Reach 28 R 80111000Metals 6.3 2007

Miles


Santa Ana River, Reach 48 R 80127000Pathogens 14 2019

Miles

Nonpoint Source

Santiago Creek, Reach 48 R 80112000Salinity/TDS/Chlorides 9.8 2019Miles

Source Unknown

Seal Beach8 C 80111000Enterococcus 0.53 2019

Impaired 50 yards around drain at 1st Street.Miles

Source Unknown


Miles

Source Unknown

Silverado Creek8 R 80112000Pathogens 11 2019Miles


Salinity/TDS/Chlorides 11 2019Miles


Summit Creek8 R 80171000Nutrients 1.5 2008Miles


Page 8 of 9


WATERSHED ESTIMATED


SOURCES






ABBREVIATIONS



WATER BODY TYPE




Page 9 of 9


Attachment A-4 San Diego RWQCB Basin Plan 303(d) List


WATERSHED ESTIMATED


SOURCES




SAN DIEGO REGIONAL WATER QUALITY CONTROL BOARD

Agua Hedionda Creek9 R 90431000Manganese 7 2019

Miles

Source Unknown

Selenium 7 2019

Miles

Source Unknown

Sulfates 7 2019

Miles

Source Unknown


Miles




Agua Hedionda Lagoon9 E 90431000Indicator bacteria 6.8 2006

Acres



Acres


Aliso Creek9 R 90113000Indicator bacteria 19 2005

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.

Miles




Phosphorus 19 2019This 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.

Miles




Page 1 of 27


WATERSHED ESTIMATED


SOURCES





Toxicity 19 2019This 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.

Miles




Aliso Creek (mouth)9 E 90113000Indicator bacteria 0.29 2005Acres


Barrett Lake9 L 91130000Color 125 2019

Acres

Source Unknown

Manganese 125 2019

Acres

Source Unknown

pH 125 2019

Acres

Source Unknown

Buena Creek9 R 90432000DDT 4.8 2019

Miles

Source Unknown

Nitrate and Nitrite 4.8 2019

Miles

Source Unknown

Phosphate 4.8 2019

Miles

Source Unknown

Buena Vista Creek9 R 90421000Sediment Toxicity 11 2019

Miles

Source Unknown

Buena Vista Lagoon9 E 90421000Indicator bacteria 202 2008Acres


Page 2 of 27


WATERSHED ESTIMATED


SOURCES





Nutrients 202 2019Estimated size of impairment is 150 acres located in upper portion of lagoon.

Acres


Sedimentation/Siltation 202 2019Acres


Chollas Creek9 R 90822000Copper 3.5 2004

Miles



Miles


Lead 3.5 2004

Miles


Zinc 3.5 2004

Miles


Cloverdale Creek9 R 90532000Phosphorus 1.2 2019

Miles





Miles




Cottonwood Creek (San Marcos Creek watershed)

9 R 90451000

DDT 1.9 2019

Miles

Source Unknown

Page 3 of 27


WATERSHED ESTIMATED


SOURCES





Phosphorus 1.9 2019

Miles

Source Unknown


Miles

Source Unknown

Dana Point Harbor9 B 90114000Indicator bacteria 119 2006

Impairment located at Baby Beach.Acres





De Luz Creek9 R 90221000Iron 14 2019

Miles

Source Unknown

Manganese 14 2019

Miles

Source Unknown

El Capitan Lake9 L 90731000Color 1454 2019

Acres

Source Unknown

Manganese 1454 2019

Acres

Source Unknown

pH 1454 2019

Acres

Source Unknown

Encinitas Creek9 R 90451000Phosphorus 3 2019

Miles

Source Unknown

Page 4 of 27


WATERSHED ESTIMATED


SOURCES





English Canyon9 R 90113000Benzo[b]fluoranthene 3.6 2019

Miles

Source Unknown

Dieldrin 3.6 2019

Miles

Source Unknown


Miles

Source Unknown

Escondido Creek9 R 90462000DDT 26 2019

Miles

Source Unknown

Manganese 26 2019

Miles

Source Unknown

Phosphate 26 2019

Miles

Source Unknown

Selenium 26 2019

Miles

Source Unknown

Sulfates 26 2019

Miles

Source Unknown


Miles

Source Unknown

Famosa Slough and Channel9 E 90711000Eutrophic 32 2019

Acres

Nonpoint Source

Felicita Creek9 R 90523000Aluminum 0.92 2019

Miles

Source Unknown

Page 5 of 27


WATERSHED ESTIMATED


SOURCES






Miles






Forester Creek9 R 90712000Fecal Coliform 6.4 2005

Impairment Located at lower 1 mile.Miles


Spills



Oxygen, Dissolved 6.4 2019

Miles

Source Unknown

pH 6.4 2019Impairment Located at upper 3 miles.

Miles

Industrial Point Sources


Spills



Phosphorus 6.4 2019

Miles

Source Unknown

Total Dissolved Solids 6.4 2019Impairment Located at lower 1 mile.

Miles






Page 6 of 27


WATERSHED ESTIMATED


SOURCES





Green Valley Creek9 R 90521000Chloride 0.98 2019

Miles

Source Unknown

Manganese 0.98 2019

Miles

Source Unknown

Pentachlorophenol (PCP) 0.98 2019

Miles

Source Unknown

Sulfates 0.98 2019

Miles


Natural Sources



Guajome Lake9 L 90311000Eutrophic 33 2019Acres


Hodges, Lake9 L 90521000Color 1104 2019

Acres




Manganese 1104 2019

Acres

Source Unknown

Nitrogen 1104 2019

Acres

Agriculture

Dairies




Page 7 of 27


WATERSHED ESTIMATED


SOURCES





pH 1104 2019

Acres

Source Unknown


Acres

Agriculture

Dairies




Turbidity 1104 2019

Acres

Source Unknown

Kit Carson Creek9 R 90521000Pentachlorophenol (PCP) 0.99 2019

Miles

Source Unknown


Miles






Laguna Canyon Channel9 R 90112000Sediment Toxicity 1.6 2019

Miles

Source Unknown

Loma Alta Slough9 E 90410000Eutrophic 8.2 2019Acres

Nonpoint Source

Indicator bacteria 8.2 2008Acres

Nonpoint Source

Page 8 of 27


WATERSHED ESTIMATED


SOURCES





Long Canyon Creek9 R 90283000Total Dissolved Solids 8.3 2019

Miles

Source Unknown

Los Penasquitos Creek9 R 90610000Phosphate 12 2019

Miles

Source Unknown


Miles

Source Unknown

Los Penasquitos Lagoon9 E 90610000Sedimentation/Siltation 469 2019Acres


Loveland Reservoir9 L 90931000Aluminum 420 2019

Acres

Source Unknown

Manganese 420 2019

Acres

Source Unknown

Oxygen, Dissolved 420 2019

Acres

Source Unknown

pH 420 2019This listing was made by USEPA for 2006.

Acres

Source Unknown

Mission Bay (area at mouth of Rose Creek only)

9 B 90640000

Eutrophic 9.2 2019Acres


Lead 9.2 2019Acres


Page 9 of 27


WATERSHED ESTIMATED


SOURCES





Mission Bay (area at mouth of Tecolote Creek only)

9 B 90650000

Eutrophic 3.1 2019Acres


Lead 3.1 2019Acres


Mission Bay Shoreline9 C 90630000Indicator bacteria 28 2019

This listing was made by USEPA for 2006.Miles

Source Unknown

Morena Reservoir9 L 91150000Color 104 2019

Acres

Source Unknown

Manganese 104 2019

Acres

Source Unknown

pH 104 2019

Acres

Source Unknown

Murray Reservoir9 L 90711000pH 119 2019

Acres

Source Unknown

Murrieta Creek9 R 90252000Iron 12 2019

Miles

Source Unknown

Manganese 12 2019

Miles

Source Unknown

Nitrogen 12 2019

Miles

Source Unknown

Page 10 of 27


WATERSHED ESTIMATED


SOURCES





Phosphorus 12 2019

Miles




Oso Creek (at Mission Viejo Golf Course)9 R 90120000Chloride 1 2019

Miles

Source Unknown

Sulfates 1 2019

Miles

Source Unknown


Miles

Source Unknown

Otay Reservoir, Lower9 L 91031000Color 1050 2019

Acres

Source Unknown

Iron 1050 2019

Acres

Source Unknown

Manganese 1050 2019

Acres

Source Unknown

Nitrogen, ammonia (Total Ammonia) 1050 2019

Acres

Source Unknown

pH (high) 1050 2019

Acres

Source Unknown

Pacific Ocean Shoreline, Aliso HSA9 C 90113000Indicator bacteria 0.65 2005

Impairment located at Laguna Beach at Lagunita Place / Blue Lagoon Place, Aliso Beach.Miles


Page 11 of 27


WATERSHED ESTIMATED


SOURCES





Pacific Ocean Shoreline, Buena Vista Creek HA

9 C 90421000

Indicator bacteria 1.2 2008Impairment located at Buena Vista Creek, Carlsbad City Beach at Carlsbad Village Drive, Carlsbad State Beach at Pine Avenue.

Miles


Pacific Ocean Shoreline, Dana Point HSA9 C 90114000Indicator bacteria 2 2005

Impairment located at Aliso Beach at West Street, Aliso Beach at Table Rock Drive, 1000 Steps Beach at Pacific Coast Hwy (Hospital, 9th Ave), Salt Creek (large outlet), Salt Creek Beach at Salt Creek service road, Salt Creek Beach at Dana Strand Road, and Monarch Beach.

Miles


Pacific Ocean Shoreline, Escondido Creek HA

9 C 90461000

Indicator bacteria 0.44 2008Impairment located at San Elijo Lagoon outlet.

Miles


Pacific Ocean Shoreline, Imperial Beach Pier

9 C 91010000


Miles

Source Unknown

Pacific Ocean Shoreline, Laguna Beach HSA

9 C 90112000

Indicator bacteria 1.8 2005Impairment located at Main Laguna Beach, Laguna Beach at Ocean Avenue, Laguna Beach at Laguna Avenue, Laguna Beach at Cleo Street, Arch Cove at Bluebird Canyon Road, Laguna Beach at Dumond Drive.

Miles


Pacific Ocean Shoreline, Loma Alta HA9 C 90410000Indicator bacteria 1.1 2008

Impairment located at Loma Alta Creek Mouth.Miles


Pacific Ocean Shoreline, Lower San Juan HSA

9 C 90120000

Indicator bacteria 1.2 2008Impairment located at North Beach Creek, San Juan Creek (large outlet), Capistrano Beach, South Capistrano Beach at Beach Road.

Miles


Page 12 of 27


WATERSHED ESTIMATED


SOURCES





Pacific Ocean Shoreline, San Clemente HA9 C 90130000Indicator bacteria 3.7 2005

Impairment located at Poche Beach (large outlet), Ole Hanson Beach Club Beach at Pico Drain, San Clemente City Beach at El Portal St. Stairs, San Clemente City Beach at Mariposa St., San Clemente City Beach at Linda Lane, San Clemente City Beach at South Linda Lane, San Clemente City Beach at Lifeguard Headquarters, Under San Clemente Municipal Pier, San Clemente City Beach at Trafalgar Canyon (Trafalgar Ln.), San Clemente State Beach at Riviera Beach, San Clemente State Beach at Cypress Shores.

Miles


Pacific Ocean Shoreline, San Diego HU9 C 90711000Indicator bacteria 0.37 2005

Impairment located at San Diego River Mouth (aka Dog Beach).Miles


Pacific Ocean Shoreline, San Diequito HU9 C 90511000Indicator bacteria 0.86 2005

Impairment located at San Dieguito Lagoon Mouth, Solana Beach.Miles


Pacific Ocean Shoreline, San Joaquin Hills HSA

9 C 90111000

Indicator bacteria 0.63 2005Impairment located at Cameo Cove at Irvine Cove Dr./Riviera Way, Heisler Park-North

Miles




Pacific Ocean Shoreline, San Luis Rey HU9 C 90311000Indicator bacteria 0.49 2005

Impairment located at San Luis Rey River Mouth.Miles


Pacific Ocean Shoreline, San Marcos HA9 C 90451000Indicator bacteria 0.5 2005

Impairment located at Moonlight State Beach.Miles


Pacific Ocean Shoreline, Scripps HA9 C 90630000Indicator bacteria 3.9 2019

This listing for indicator bacteria onliy applies to the Childrens Pool Beach area of this ocean shoreline segment.Miles


Page 13 of 27


WATERSHED ESTIMATED


SOURCES





Pacific Ocean Shoreline, Tijuana HU9 C 91111000Indicator bacteria 3 2010

Impairment located from the border, extending north along the shore.Miles


Pine Valley Creek (Upper)9 R 91141000Enterococcus 2.9 2010

Miles


Concentrated Animal Feeding Operations (permitted, point source)

Transient encampments

Phosphorus 2.9 2019

Miles

Source Unknown

Turbidity 2.9 2019

Miles

Source Unknown

Pogi Canyon Creek9 R 91020000DDT 7.8 2019

Miles

Source Unknown

Prima Deshecha Creek9 R 90130000Phosphorus 1.2 2019Miles




Turbidity 1.2 2019Miles




Rainbow Creek9 R 90222000Iron 5 2019

Miles

Source Unknown

Page 14 of 27


WATERSHED ESTIMATED


SOURCES





Sulfates 5 2019

Miles

Source Unknown


Miles

Source Unknown

Reidy Canyon Creek9 R 90462000Phosphorus 3.9 2019

Miles

Source Unknown

San Diego Bay9 B 91010000PCBs (Polychlorinated biphenyls) 10783 2019

Acres

Source Unknown

San Diego Bay Shoreline, 32nd St San Diego Naval Station

9 B 90822000

Benthic Community Effects 103 2019Acres




San Diego Bay Shoreline, at Americas Cup Harbor

9 B 90810000

Copper 88 2019

Acres

Source Unknown

San Diego Bay Shoreline, at Bayside Park (J Street)

9 B 90911000

Indicator bacteria 50 2019This listing was made by USEPA for 2006.

Acres

Source Unknown

San Diego Bay Shoreline, at Coronado Cays9 B 91010000Copper 47 2019

Acres

Source Unknown

Page 15 of 27


WATERSHED ESTIMATED


SOURCES





San Diego Bay Shoreline, at Glorietta Bay9 B 91010000Copper 52 2019

Acres

Source Unknown

San Diego Bay Shoreline, at Harbor Island (East Basin)

9 B 90821000

Copper 73 2019

Acres

Source Unknown

San Diego Bay Shoreline, at Harbor Island (West Basin)

9 B 90810000

Copper 132 2019

Acres

Source Unknown

San Diego Bay Shoreline, at Marriott Marina

9 B 90821000

Copper 24 2019

Acres

Source Unknown

San Diego Bay Shoreline, between Sampson and 28th Streets

9 B 90822000

Copper 53 2005

Acres


Mercury 53 2006

Acres


PAHs (Polycyclic Aromatic Hydrocarbons) 53 2006

Acres



Acres


Zinc 53 2019

Acres


Page 16 of 27


WATERSHED ESTIMATED


SOURCES





San Diego Bay Shoreline, Chula Vista Marina

9 C 90912000

Copper 0.41 2019

Miles

Source Unknown

San Diego Bay Shoreline, Downtown Anchorage

9 B 90821000

Benthic Community Effects 7.4 2019Acres


Sediment Toxicity 7.4 2019Acres


San Diego Bay Shoreline, G Street Pier9 C 90821000Indicator bacteria 0.42 2006Miles




San Diego Bay Shoreline, near Chollas Creek

9 B 90822000





San Diego Bay Shoreline, near Coronado Bridge

9 B 90822000



Sediment Toxicity 37 2019Includes Crosby Street/Cesar Chavez Park area, that will receive additional monitoring.

Acres


San Diego Bay Shoreline, near sub base9 B 90810000Benthic Community Effects 16 2019Acres




Page 17 of 27


WATERSHED ESTIMATED


SOURCES





San Diego Bay Shoreline, near Switzer Creek

9 B 90821000

Chlordane 5.5 2019Acres


Other

Boatyards


Lindane/Hexachlorocyclohexane (HCH) 5.5 2019Acres


Other

Boatyards


PAHs (Polycyclic Aromatic Hydrocarbons) 5.5 2019Acres


Other

Boatyards


San Diego Bay Shoreline, North of 24th Street Marine Terminal

9 B 90832000





San Diego Bay Shoreline, Seventh Street Channel

9 B 90831000





San Diego Bay Shoreline, Shelter Island Shoreline Park

9 C 90810000

Indicator bacteria 0.42 2006Miles



Page 18 of 27


WATERSHED ESTIMATED


SOURCES





San Diego Bay Shoreline, Vicinity of B St and Broadway Piers

9 B 90821000



Indicator bacteria 9.9 2006Estimated size of impairment is 0.4 miles around the shoreline of the bay.

Acres






San Diego River (Lower)9 R 90711000Fecal Coliform 16 2005

Lower 6 miles.Miles


Wastewater


Low Dissolved Oxygen 16 2019Impairment transcends adjacent Calwater wtareshed 90712.

Miles




Phosphorus 16 2019Impairment transcends adjacent Calwater watershed 90712.

Miles




Total Dissolved Solids 16 2019Impairment transcends adjacent Calwater watershed 90712.

Miles



Natural Sources



Page 19 of 27


WATERSHED ESTIMATED


SOURCES





San Elijo Lagoon9 E 90461000Eutrophic 566 2019

Estimated size of impairment is 330 acres.Acres


Indicator bacteria 566 2008Estimated size of impairment is 150 acres.

Acres


Sedimentation/Siltation 566 2019Estimated size of impairment is 150 acres.

Acres


San Juan Creek9 R 90120000DDE 1 2019

Miles

Source Unknown

Indicator bacteria 1 2005

Miles


San Juan Creek (mouth)9 E 90120000Indicator bacteria 6.3 2008Acres


San Luis Rey River9 R 90311000Chloride 19 2019

Impairment located at lower 13 miles.Miles




Page 20 of 27


WATERSHED ESTIMATED


SOURCES






Miles




Surface Mining


Natural Sources

Golf course activities



San Marcos Creek9 R 90451000DDE 19 2019

Miles

Source Unknown

Phosphorus 19 2019

Miles

Source Unknown


Miles

Source Unknown

San Marcos Lake9 L 90452000Ammonia as Nitrogen 17 2019

Acres

Source Unknown

Nutrients 17 2019

Acres

Source Unknown

Phosphorus 17 2019

Acres

Source Unknown

San Vicente Reservoir9 L 90721000Chloride 1058 2019

Acres

Source Unknown

Page 21 of 27


WATERSHED ESTIMATED


SOURCES





Color 1058 2019

Acres

Source Unknown

Manganese 1058 2019

Acres

Source Unknown

pH (high) 1058 2019

Acres

Source Unknown

Sulfates 1058 2019

Acres

Source Unknown

Sandia Creek9 R 90222000Iron 1.5 2019

Miles

Source Unknown

Manganese 1.5 2019

Miles

Source Unknown

Nitrogen 1.5 2019

Miles

Source Unknown

Sulfates 1.5 2019

Miles

Source Unknown


Miles



Natural Sources



Santa Margarita Lagoon9 E 90211000Eutrophic 28 2019Acres


Page 22 of 27


WATERSHED ESTIMATED


SOURCES





Santa Margarita River (Upper)9 R 90222000Phosphorus 18 2019Miles




Segunda Deshecha Creek9 R 90130000Phosphorus 0.92 2019Miles




Turbidity 0.92 2019Miles



Channelization




Soledad Canyon9 R 90610000Sediment Toxicity 1.7 2019

Miles

Source Unknown

Sutherland Reservoir9 L 90553000Color 561 2019

Acres




Manganese 561 2019

Acres

Source Unknown

pH 561 2019

Acres

Source Unknown

Page 23 of 27


WATERSHED ESTIMATED


SOURCES





Sweetwater Reservoir9 L 90921000Oxygen, Dissolved 925 2019

Acres

Source Unknown

Tecolote Creek9 R 90650000Cadmium 6.6 2019

Miles


Copper 6.6 2019

Miles



Miles


Lead 6.6 2019

Miles


Phosphorus 6.6 2019

Miles

Source Unknown

Toxicity 6.6 2019

Miles


Turbidity 6.6 2019

Miles

Source Unknown

Zinc 6.6 2019

Miles


Temecula Creek9 R 90251000Nitrogen 44 2019

Miles

Source Unknown

Phosphorus 44 2019

Miles

Source Unknown

Page 24 of 27


WATERSHED ESTIMATED


SOURCES






Miles

Source Unknown

Tijuana River9 R 91111000Eutrophic 6 2019

Miles


Indicator bacteria 6 2010

Miles


Low Dissolved Oxygen 6 2019

Miles


Pesticides 6 2019

Miles


Solids 6 2019

Miles


Synthetic Organics 6 2019

Miles


Trace Elements 6 2019

Miles


Trash 6 2019

Miles


Tijuana River Estuary9 E 91111000Eutrophic 1319 2019

Estimated size of impairment is 1 acre.Acres


Indicator bacteria 1319 2010Estimated size of impairment is 150 acres.

Acres


Page 25 of 27


WATERSHED ESTIMATED


SOURCES





Lead 1319 2019Estimated size of impairment is 1 acre.

Acres


Low Dissolved Oxygen 1319 2019

Acres


Wastewater



Nickel 1319 2019Estimated size of impairment is 1 acre.

Acres


Pesticides 1319 2019Estimated size of impairment is 1 acre.

Acres


Thallium 1319 2019Estimated size of impairment is 1 acre.

Acres


Trash 1319 2019Estimated size of impairment is 1 acre.

Acres


Turbidity 1319 2019

Acres

Source Unknown

Page 26 of 27


WATERSHED ESTIMATED


SOURCES






ABBREVIATIONS



WATER BODY TYPE




Page 27 of 27


Attachment A-5 Colorado River RWQCB Basin Plan 303(d) List


WATERSHED ESTIMATED


SOURCES




COLORADO RIVER BASIN REGIONAL WATER QUALITY CONTROL BOARD

Alamo River7 R 72310000Chlorpyrifos 57 2019

Miles

Source Unknown

DDT 57 2019

Miles

Source Unknown

Dieldrin 57 2019

Miles

Source Unknown


Miles

Source Unknown

Selenium 57 2003Selenium 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.

Miles


Toxaphene 57 2019

Miles

Source Unknown

Coachella Valley Storm Water Channel7 R 71947000Pathogens 24 2006

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.

Miles

Source Unknown

Toxaphene 24 2019This listing for toxaphene only applies to a 2 mile area of the Coachella Valley Storm Water Channel from Lincoln Street to the Salton Sea.

Miles

Source Unknown

Colorado River (Imperial Reservoir to California-Mexico Border)

7 R 72700000

Selenium 11 2019

Miles

Source Unknown

Page 1 of 6


WATERSHED ESTIMATED


SOURCES





Imperial Valley Drains7 R 72310000DDT 1225 2019

The listing for DDT only applies to the Barbara Worth Drain, Peach Drain, and Rice Drain areas of the Imperial Valley drains.

Miles

Source Unknown

Dieldrin 1225 2019The listing for dieldrin only applies to the Barbara Worth Drain and Fig Drain areas of the Imperial Valley drains.

Miles

Source Unknown

Endosulfan 1225 2019The listing for endosulfan only applies to the Peach Drain area of the Imperial Valley drains.

Miles

Source Unknown

PCBs (Polychlorinated biphenyls) 1225 2019The 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.

Miles

Source Unknown

Selenium 1225 2019Selenium originates from Upper Basin Portion of Colorado River. Elevated fish tissue levels.

Miles


Toxaphene 1225 2019This listing for toxaphene only applies to the Barbara Worth Drain, Peach Drain, and Rice Drain of the Imperial Valley drains.

Miles

Source Unknown

New River (Imperial County)7 R 728000001,2,4-Trimethylbenzene 66 2006

Miles


Out-of-state source

Chlordane 66 2019

Miles

Source Unknown

Chloroform 66 2006

Miles


Out-of-state source

Chlorpyrifos 66 2019

Miles

Source Unknown

Page 2 of 6


WATERSHED ESTIMATED


SOURCES





Copper 66 2019This listing was made by USEPA for 2006.

Miles

Source Unknown

DDT 66 2019

Miles

Source Unknown

Diazinon 66 2019

Miles

Source Unknown

Dieldrin 66 2019

Miles

Source Unknown

Mercury 66 2019

Miles

Source Unknown

meta-para xylenes 66 2006

Miles


Out-of-state source

Nutrients 66 2006Regional Board proposes to establish TMDL in cooperation with U.S. EPA and Mexico.

Miles

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


Out-of-state source


Miles

Wastewater

Inappropriate Waste Disposal/Wildcat Dumping

Out-of-state source


o-Xylenes 66 2006

Miles


Out-of-state source

Page 3 of 6


WATERSHED ESTIMATED


SOURCES






Miles

Source Unknown

p-Cymene 66 2006

Miles


Out-of-state source

p-Dichlorobenzene/DCB 66 2006

Miles


Out-of-state source

Pesticides 66 2019

Miles


Out-of-state source

Selenium 66 2019

Miles

Source Unknown

Toluene 66 2006

Miles


Out-of-state source

Toxaphene 66 2019

Miles

Source Unknown

Toxicity 66 2019

Miles

Source Unknown

Trash 66 2006

Miles

Out-of-state source

Palo Verde Outfall Drain and Lagoon7 R 71540000DDT 19 2019

Miles

Source Unknown

Page 4 of 6


WATERSHED ESTIMATED


SOURCES





Pathogens 19 2019This listing was made by USEPA for 2006.

Miles

Source Unknown

Salton Sea7 S 72800000Nutrients 233340 2006Acres

Major Industrial Point Source


Out-of-state source

Salinity 233340 2019TMDL development will not be effective in addressing this problem, which will require an engineering solution with federal, local, and state cooperation.

Acres


Out-of-state source

Point Source

Selenium 233340 2019Acres


Page 5 of 6


WATERSHED ESTIMATED


SOURCES






ABBREVIATIONS



WATER BODY TYPE




Page 6 of 6

Attachment A 303(d) List for Bodies of Water from RWQCB ......in Southern California...

Documents

Transcript of Attachment A 303(d) List for Bodies of Water from RWQCB ......in Southern California...