POLLUTION LOCATOR| Water | State Clean Water Act Status Report

Clean Water Act Status: MISSISSIPPI
 
 
  • Clean Water Act Comparative Ranking
    Cleanest/Best States National Average Dirtiest/Worst States
    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 MISSISSIPPI or in the U.S. by assessed use impairments.
    Rank watersheds in MISSISSIPPI 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
    MISSISSIPPI contains a portion of 50 watersheds.
    Percentage of Surface Waters with Reported Problems (state + EPA data): 71%
    Number of Waterbodies with Reported Problems (as reported by the state): 729
    Beneficial Use Most Frequently Impaired Percent of All Impairments
    Aquatic Life Support 87%
    SecondaryContact Recreation (Boating) 27%
    Primary Contact Recreation (Swimming) 5%
    Fish Consumption 3%
    Shellfish Consumption 1%
    Beneficial uses not reported for 100% of waterbodies.


    Priority for Regulation     Number of Waterbodies
    Targeted 0
    High 50
    Medium 49
    Low 47
    Not Assessed for TMDL Priority 518
    Not Reported to US EPA for TMDL Priority 65
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  • Leading Pollutants/Stressors of Surface Waters
    Rivers, Streams, and Creeks
    Number of impaired waterbodies: 633
    Percent of Rivers, Streams and Creeks in MISSISSIPPI assessed by agencies for 1997-98 reporting period: 47%
      Percent Waterbodies Affected
    Sediments 67%
    Nutrients 65%
    Pesticides 62%
    Low Dissolved Oxygen/Organic Enrichment 57%
    Pathogens 31%
    More...

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 51
    Percent of Lakes, Reservoirs and Ponds in MISSISSIPPI assessed by agencies for 1997-98 reporting period: 58%
      Percent Waterbodies Affected
    Nutrients 84%
    Sediments 80%
    Pesticides 73%
    Low Dissolved Oxygen/Organic Enrichment 53%
    Pathogens 8%
    More...

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


    Estuaries, Bays, and Coasts
    Number of impaired waterbodies: 41
    Percent of Estuaries and Bays in MISSISSIPPI assessed by agencies for 1997-98 reporting period: 28%
    Percent of Coastal Shorelines in MISSISSIPPI assessed by agencies for 1997-98 reporting period: 55%
      Percent Waterbodies Affected
    Pathogens 66%
    Low Dissolved Oxygen/Organic Enrichment 29%
    Nutrients 29%
    Sediments 12%
    Toxics 12%
    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: 633 (cause not reported for 100%)
    Percent of Rivers, Streams and Creeks in MISSISSIPPI assessed by agencies for 1997-98 reporting period: 47%
      Percent Waterbodies Affected
    Impairment source not reported 100%

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 51 (cause not reported for 100%)
    Percent of Lakes, Reservoirs and Ponds in MISSISSIPPI assessed by agencies for 1997-98 reporting period: 58%
      Percent Waterbodies Affected
    Impairment source not reported 100%

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


    Estuaries, Bays, and Coasts
    Number of impaired waterbodies: 41 (cause not reported for 100%)
    Percent of Estuaries and Bays in MISSISSIPPI assessed by agencies for 1997-98 reporting period: 28%
    Percent of Coastal Shorelines in MISSISSIPPI assessed by agencies for 1997-98 reporting period: 55%
      Percent Waterbodies Affected
    Impairment source not reported 100%

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


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