All Regional Boards CATEGORY 4B Final 2024 Integrated Report (CWA Section 303(d) List / 305(b) Report)
2024 CALIFORNIA LIST OF WATER QUALITY LIMITED SEGMENTS
BEING ADDRESSED BY ACTIONS OTHER THAN TMDLS
 
Category 4B Criteria: A water segment where ALL its 303(d) listings are being addressed by action(s) other than TMDL.
* USGS HUC = US Geological Survey Hydrologic Unit Code. Calwater = is the State Water Resources Control Board hydrological subunit area or even smaller area delineation.
 REGION  WATER BODY NAME WATER TYPE WATERSHED*
CALWATER / USGS HUC
  • POLLUTANT
    • POTENTIAL SOURCES
    • Relevant Notes
ESTIMATED AREA ASSESSED FIRST YEAR LISTED PROGRAM COMPLETION DATE

Region 2
Baxter Creek (Contra Costa County)
River & Stream
2203.300001  /  18050002
  • Trash
    • A Source Unknown
1.6 Miles
2010
2029

Region 2
Castro Cove, Richmond (San Pablo Basin)
Estuary
2206.600104  /  18050002
  • Dieldrin
    • A Source Unknown
68 Acres
2014
2010
  • Mercury (sediment)
    • A Source Unknown
68 Acres
2016
2010
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • A Source Unknown
68 Acres
2014
2010
  • Selenium
    • Point Source
    • Urban Runoff/Storm Sewers
68 Acres
2014
2010

Region 2
Cerrito Creek
River & Stream
2203.300001,2203.300002  /  18050002
  • Trash
    • A Source Unknown
2 Miles
2010
2029

Region 2
Colma Creek
River & Stream
2204.400202  /  18050004
  • Trash
    • A Source Unknown
3.9 Miles
2010
2029

Region 2
Damon Slough
River & Stream
2204.200400  /  18050004
  • Trash
    • A Source Unknown
0.99 Miles
2010
2029

Region 2
Fitzgerald Marine Reserve at Moss Beach
Coastal & Bay Shoreline
2202.210001,2202.210002  / 
  • Indicator Bacteria
    • A Source Unknown
0.3 Miles
2024
2037

Region 2
Lower Silver Creek subwatershed (Santa Clara County, tributary to Coyote Creek)
River & Stream
2205.300601, 2205.300800  /  18050003
  • Trash
    • A Source Unknown
15 Miles
2010
2029

Region 2
Old Alameda Creek
River & Stream
2204.200400  /  18050004
  • Trash
    • A Source Unknown
10 Miles
2010
2029

Region 2
Rindler Creek
River & Stream
2206.500405,2206.500407  /  18050002
  • Trash
    • A Source Unknown
2.7 Miles
2010
2029

Region 2
San Vicente Creek
River & Stream
2202.210002  /  18050006
  • Indicator Bacteria
    • A Source Unknown
    • Agriculture-animal
    • Onsite Wastewater Systems (Septic Tanks)
3.9 Miles
2014
2037
    The San Francisco Bay Regional Water Quality Control Board, at its May 11, 2016 hearing, adopted a Resolution to support the Water Quality Improvement Plan for bacteria in San Vicente Creek. The Plan describes bacteria sources in the San Vicente Creek watershed, proposes high-priority implementation actions to reduce loading from horse waste, dog waste, human waste from onsite wastewater treatment systems, and stormwater runoff and identifies the regulatory mechanisms for the actions. The Plan also includes water quality monitoring to evaluate effectiveness of the corrective actions and assess attainment of standards.

Region 2
Sausal Creek
River & Stream
2204.200300,2204.200400  /  18050004
  • Trash
    • A Source Unknown
3.1 Miles
2010
2029

Region 2
Stege Marsh
Estuary
2203.300001  /  18050002
  • Copper
    • A Source Unknown
4.4 Acres
2006
2019
  • Dacthal
    • A Source Unknown
4.4 Acres
2006
2019
  • Dieldrin
    • A Source Unknown
4.4 Acres
2006
2019
  • Mercury
    • A Source Unknown
4.4 Acres
2006
2019
  • PCBs (Polychlorinated biphenyls)
    • A Source Unknown
4.4 Acres
2006
2019
  • Zinc
    • A Source Unknown
4.4 Acres
2006
2019

Region 2
Strawberry Creek (Alameda County)
River & Stream
 /  18050002
  • Trash
    • A Source Unknown
0.83 Miles
2010
2029

Region 4
J Street Drain (Ventura County)
River & Stream
4410.000000  /  18070103
  • Trash
    • A Source Unknown
2.3 Miles
2014
2027

Region 4
Santa Clara River Reach 4A (A Street, Fillmore to Piru Creek)
River & Stream
4403.310000,4403.410000  / 
  • Trash
    • A Source Unknown
7.9 Miles
2014
2027

Region 4
Santa Paula Creek Reach 1 (confluence w Santa Clara River to Diverson Dam)
River & Stream
4403.210000  /  18070102
  • Trash
    • A Source Unknown
1.8 Miles
2014
2027

Region 4
Sespe Creek (Santa Clara River Reach 3 to Little Sespe Creek)
River & Stream
4403.310000  /  18070102
  • Trash
    • A Source Unknown
2.8 Miles
2014
2027

Region 5
Morrison Slough
River & Stream
5520.300000  /  18020106
  • Diazinon
    • Agriculture
13 Miles
2010
2026

Region 5
Poso Slough
River & Stream
6541.200000  /  18040001
  • Toxicity
    • A Source Unknown
15 Miles
2014
2024

Region 5
Winters Canal (Yolo County)
River & Stream
5511.200000,5511.300000  /  18020109
  • Diazinon
    • Agriculture
15 Miles
2010
2026

Region 6
Aspen Creek
River & Stream
8632.100800  /  16050201
  • Metals
    • A Source Unknown
0.99 Miles
1992
2019
    This listing is being addressed through a CERCLA remediation program and through ongoing work by Lahontan Water Board staff.

Region 6
Bryant Creek
River & Stream
8632.100800  /  16050201
  • Metals
    • Acid Mine Drainage
    • Inactive Mining
    • Mine Tailings
    • Nonpoint Source
3.3 Miles
1992
2019
    This listing is being addressed through a CERCLA remediation program and through ongoing work by Lahontan Water Board staff.

Region 6
Buckeye Creek
River & Stream
8630.300500,8630.400201,8630.400202,8630.400204  /  16050301
  • Indicator Bacteria
    • Agricultural Water Diversion
    • Agriculture-grazing
    • Grazing-Related Sources
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Streambank Modification/Destabilization
    • Unknown Nonpoint Source
18 Miles
2014
2028
    This waterbody segment was previously listed as impaired by bacteria for the REC-1 beneficial use. Due to changes to the REC-1 bacteria water quality standard which is now based on E. coli as the indicator of impairment, this waterbody segment is now listed 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, above Bridgeport Reservoir
River & Stream
8630.300500  /  16050301
  • Indicator Bacteria
    • Agricultural Water Diversion
    • Agriculture-grazing
    • Grazing-Related Sources
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Streambank Modification/Destabilization
    • Unknown Nonpoint Source
7.8 Miles
2014
2028

Region 6
Leviathan Creek
River & Stream
8632.100800  /  16050201
  • Metals
    • Acid Mine Drainage
3.3 Miles
1992
2019

Region 6
Mid-Branch Buckeye Creek
River & Stream
8630.300500  / 
  • Indicator Bacteria
    • Agricultural Water Diversion
    • Agriculture-grazing
    • Grazing-Related Sources
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Streambank Modification/Destabilization
    • Unknown Nonpoint Source
2.5 Miles
2014
2028
    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
Mono Lake
Saline Lake
9601.000305,9601.000306,9601.000800  /  18090101
  • Salinity/TDS/Chlorides
    • Crop-Related Sources
45299 Acres
1998
2019

Region 6
Robinson Creek (Hwy 395 to Bridgeport Res)
River & Stream
8630.300500  /  16050301
  • Indicator Bacteria
    • Agricultural Water Diversion
    • Agriculture-grazing
    • Grazing-Related Sources
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Streambank Modification/Destabilization
    • Unknown Nonpoint Source
2 Miles
2014
2028

Region 6
Robinson Creek (Twin Lakes to Hwy 395)
River & Stream
8630.300500,8630.400302  /  16050301
  • Indicator Bacteria
    • Agricultural Water Diversion
    • Agriculture-grazing
    • Grazing-Related Sources
    • Natural Sources
    • Pasture Grazing-Riparian and/or Upland
    • Streambank Modification/Destabilization
    • Unknown Nonpoint Source
9.8 Miles
2014
2028
    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
Searles Lake
Saline Lake
9621.100000  /  18090205
  • Salinity/TDS/Chlorides
    • A Source Unknown
29632 Acres
2006
2019
    This listing is being addressed through Lahontan Water Board Cleanup and Abatement Orders 6-00-64, 6-00-64A1 and 6-00-64A2.
  • Total Petroleum Hydrocarbons
    • Industrial Point Sources
29632 Acres
2006
2019
    This listing is being addressed through Lahontan Water Board Cleanup and Abatement Orders 6-00-64, 6-00-64A1 and 6-00-64A2.

Region 6
Snowshoe Thompson Ditch 1
River & Stream
8632.200000,8633.100003  /  16050201
  • Phosphorus
    • Agriculture-animal
1.3 Miles
2012
2025
  • Total Kjeldahl Nitrogen (TKN)
    • A Source Unknown
1.3 Miles
2012
2025

Region 9
Mission Bay Shoreline, at Enchanted Cove
Coastal & Bay Shoreline
4906.700000,4906.800000  /  18070304
  • Trash
    • A Source Unknown
2.2 Miles
2014
2029

Region 9
Pacific Ocean Shoreline at Cardiff Reef
Coastal & Bay Shoreline
4904.510000,4904.610000,4905.110000  /  18070304
  • Trash
    • A Source Unknown
0.43 Miles
2024
2029

Region 9
Pacific Ocean Shoreline, Coronado HA, at G Ave, Central Beach
Coastal & Bay Shoreline
4908.100000,4908.210000,4910.100000,4912.000000  /  18070304
  • Trash
    • A Source Unknown
0.36 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Los Monos HSA, Carlsbad State Beach at Tamarack Ave
Coastal & Bay Shoreline
4904.100000,4904.210000,4904.310000,4904.400000,4904.510000  /  18070303
  • Trash
    • A Source Unknown
0.5 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Mission San Diego HSA, at Ocean Beach pier at Narrangaset
Coastal & Bay Shoreline
4906.300000,4906.600000,4906.700000,4906.800000,4907.110000,4908.100000,4908.210000,4912.000000  /  18070304
  • Trash
    • A Source Unknown
0.53 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Point Loma HA, at Sunset Cliffs and Froude Street
Coastal & Bay Shoreline
4906.300000,4906.600000,4906.700000,4906.800000,4907.110000,4908.100000,4908.210000,4910.100000,4912.000000  /  18070304
  • Trash
    • A Source Unknown
0.26 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Rancho Santa Fe HSA, at Powerhouse Park
Coastal & Bay Shoreline
90511000  /  18070304
  • Trash
    • A Source Unknown
0.13 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, San Luis Rey HU, Oceanside Pier at Pier View Way
Coastal & Bay Shoreline
4903.110000,4904.100000  /  18070303
  • Trash
    • A Source Unknown
0.31 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Scripps HA, at Belmont Park, Mission Beach
Coastal & Bay Shoreline
4906.300000,4906.500000,4906.600000,4906.700000,4906.800000,4907.110000,4908.100000,4908.210000,4912.000000  /  18070304
  • Trash
    • A Source Unknown
0.88 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Scripps HA, at Crystal Pier
Coastal & Bay Shoreline
4906.300000,4906.600000,4906.700000,4906.800000  /  18070304
  • Trash
    • A Source Unknown
0.39 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Scripps HA, at North Lane at Windansea Beach
Coastal & Bay Shoreline
4906.300000  /  18070304
  • Trash
    • A Source Unknown
0.16 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Scripps HA, at Pacific Beach Drive, Pacific Beach
Coastal & Bay Shoreline
4906.300000,4906.500000,4906.600000,4906.700000,4906.800000,4907.110000,4908.100000,4908.210000  /  18070304
  • Trash
    • A Source Unknown
1.1 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Scripps HA, at Tourmaline Surf Park, Pacific Beach
Coastal & Bay Shoreline
4906.300000,4906.600000,4906.700000,4906.800000  /  18070304
  • Trash
    • A Source Unknown
0.78 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Scripps HA, at Vallecitos Court at La Jolla Shores Beach
Coastal & Bay Shoreline
4906.100000,4906.300000  /  18070304
  • Trash
    • A Source Unknown
0.19 Miles
2014
2029

Region 9
Pacific Ocean Shoreline, Torrey Pines State Beach, at North Beach Entrance parking lot
Coastal & Bay Shoreline
4906.100000  /  18070304
  • Trash
    • A Source Unknown
0.29 Miles
2014
2029

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
2021

Region 9
San Diego Bay Shoreline, between Sampson and 28th Streets
Bay & Harbor
4908.220000,4912.000000  /  18070304
  • Copper
    • Nonpoint Source
    • Point Source
53 Acres
1992
2015
  • Mercury
    • Major Industrial Point Source
53 Acres
1990
2013
  • PAHs (Polycyclic Aromatic Hydrocarbons)
    • Nonpoint Source
    • Point Source
53 Acres
1992
2013
  • PCBs (Polychlorinated biphenyls)
    • Major Industrial Point Source
    • Unknown Nonpoint Source
    • Unknown Point Source
    • Urban Runoff/Storm Sewers
53 Acres
1990
2013
  • Zinc
    • A Source Unknown
    • Unknown Nonpoint Source
    • Unknown Point Source
53 Acres
1990
2013