Jump to main content or area navigation.

Contact EPA Pacific Southwest

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

California Impaired Waters

 

Summary of California‚Äôs 303(d) Listing Pollutant Trends »


Maps

2010 Integrated Report
- All Assessed Waters

See the map on the CA Water Resources site» Exiting EPA (disclaimer)
On the CA Water Resources site, click the "Map" tab, then to the upper-right of the map click "Show only impaired ("303(d)-listed") waters"



Central Valley Additions


Larger version»


Media Contact

Nahal Mogharabi, US EPA
(415) 947-4307
(mogharabi.nahal@epa.gov)

News Release


Waters Added to California List

Water Body Pollutant
Merced River, Lower (McSwain Reservoir to San Joaquin River) Temperature
Old River (San Joaquin River to Delta-Mendota Canal; in Delta Waterways, southern portion) Electrical Conductivity
Total Dissolved Solids
San Joaquin River (Bear Creek to Mud Slough) Electrical Conductivity
San Joaquin River (Merced River to Tuolumne River) Electrical Conductivity
Temperature
San Joaquin River (Mud Slough to Merced River) Electrical Conductivity
San Joaquin River (Stanislaus River to Delta Boundary) Temperature
San Joaquin River (Tuolumne River to Stanislaus River) Electrical Conductivity
Temperature
Stanislaus River, Lower Temperature
Tuolumne River, Lower (Don Pedro Reservoir to San Joaquin River) Temperature
Carson River, East Fork Total Dissolved Solids
Mammoth Creek (Headwaters to Twin Lakes outlet) Total Dissolved Solids
Bolsa Chica Channel Indicator Bacteria
Borrego Creek (from Irvine Blvd. to San Diego Creek Reach 2) Indicator Bacteria
Cucamonga Creek Reach 1 (Valley Reach) Lead
Goldenstar Creek Indicator Bacteria
Morning Canyon Creek Indicator Bacteria
Peters Canyon Channel Indicator Bacteria
San Diego Creek Reach 2 Indicator Bacteria
Santa Ana Delhi Channel Indicator Bacteria
Santa Ana River Reach 2 Indicator Bacteria
Santa Ana River Reach 3 Lead
Santa Ana River Reach 6 Copper
Lead
Serrano Creek Indicator Bacteria
Temescal Creek, Reach 6 (Elsinore Groundwater sub basin boundary to Lake Elsinore Outlet) Indicator Bacteria
Pacific Southwest NewsroomPacific Southwest Programs Grants & FundingUS-Mexico Border Media Center Careers About EPA Region 9 (Pacific Southwest)A-Z Index

Jump to main content.