POLLUTION LOCATOR| Water | County Clean Water Act Status Report

Clean Water Act Status: SAN DIEGO County, CA
 
 
  • Clean Water Act Comparative Ranking
    Cleanest/Best Counties National Average Dirtiest/Worst Counties
    0%         50%         100%

    Percentage of Surface Waters with Impaired or Threatened Uses (state + EPA data):
    Number of Impaired Waterbodies (as reported by the state):

    NOTE: Data limitations affect the accuracy of these rankings.

    Rank counties in CALIFORNIA or in the U.S. by assessed use impairments.
    Rank watersheds in CALIFORNIA by assessed use impairments
    Rank states by assessed use impairments, impairments due to specific causes, or impairments due to specific sources

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  • 1998 Clean Water Act Status
    SAN DIEGO County contains a portion of 6 watersheds:
    Aliso-San Onofre
    Cottonwood-Tijuana
    Salton Sea
    San Diego
    San Luis Rey-Escondido
    Santa Margarita
    Percentage of Surface Waters with Reported Problems (state + EPA data): 22%
    Number of Waterbodies with Reported Problems (as reported by the state): 41

    Priority for Regulation     Number of Waterbodies
    Targeted 0
    High 6
    Medium 6
    Low 27
    Not Assessed for TMDL Priority 0
    Not Reported to US EPA for TMDL Priority 2
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  • Leading Pollutants/Stressors of Surface Waters
    Rivers, Streams, and Creeks
    Number of impaired waterbodies: 11
    Percent of Rivers, Streams and Creeks in CALIFORNIA assessed by agencies for 1997-98 reporting period: 8%
      Percent Waterbodies Affected
    Pathogens 64%
    Sediments 36%
    Pesticides 36%
    Metals 36%
    Nutrients 27%
    More...

    NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 2
    Percent of Lakes, Reservoirs and Ponds in CALIFORNIA assessed by agencies for 1997-98 reporting period: 44%
      Percent Waterbodies Affected
    Nutrients 100%
    Salinity/TDS/Chlorides 50%
    Metals 50%

    NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.


    Estuaries, Bays, and Coasts
    Number of impaired waterbodies: 28
    Percent of Estuaries and Bays in CALIFORNIA assessed by agencies for 1997-98 reporting period: 89%
    Percent of Coastal Shorelines in CALIFORNIA assessed by agencies for 1997-98 reporting period: 57%
      Percent Waterbodies Affected
    Pathogens 86%
    Nutrients 21%
    Sediments 14%
    Metals 11%
    Impaired Biological Community 4%
    More...

    NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.


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  • Leading Sources of Water Quality Problems
    Rivers, Streams, and Creeks
    Number of impaired waterbodies: 11
    Percent of Rivers, Streams and Creeks in CALIFORNIA assessed by agencies for 1997-98 reporting period: 8%
      Percent Waterbodies Affected
    Nonpoint Sources 55%
    Agriculture 27%
    Unknown Sources 18%

    NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 2
    Percent of Lakes, Reservoirs and Ponds in CALIFORNIA assessed by agencies for 1997-98 reporting period: 44%
      Percent Waterbodies Affected
    Agriculture 50%
    Nonpoint Sources 50%

    NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.


    Estuaries, Bays, and Coasts
    Number of impaired waterbodies: 28
    Percent of Estuaries and Bays in CALIFORNIA assessed by agencies for 1997-98 reporting period: 89%
    Percent of Coastal Shorelines in CALIFORNIA assessed by agencies for 1997-98 reporting period: 57%
      Percent Waterbodies Affected
    Nonpoint Sources 100%

    NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.


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    Email EPA
    Join an online discussion about pollution in SAN DIEGO County


    Email a Scorecard Community Report to a friend
    Network with environmental groups
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    Contribute to Environmental Defense
    Volunteer with environmental groups in your community

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  • Links
    Scorecard's report on
    Drinking Water Sources for this County
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