POLLUTION LOCATOR| Water | State Clean Water Act Status Report

Clean Water Act Status: MISSOURI
 
 
  • 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 MISSOURI or in the U.S. by assessed use impairments.
    Rank watersheds in MISSOURI 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
    MISSOURI contains a portion of 64 watersheds.
    Percentage of Surface Waters with Reported Problems (state + EPA data): 4%
    Number of Waterbodies with Reported Problems (as reported by the state): 174
    Beneficial uses not reported for 100% of waterbodies.

    Priority for Regulation     Number of Waterbodies
    Targeted 6
    High 18
    Medium 14
    Low 24
    Not Assessed for TMDL Priority 104
    Not Reported to US EPA for TMDL Priority 8
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  • Leading Pollutants/Stressors of Surface Waters
    Rivers, Streams, and Creeks
    Number of impaired waterbodies: 153 (cause not reported for 2%)
    Percent of Rivers, Streams and Creeks in MISSOURI assessed by agencies for 1997-98 reporting period: 42%
      Percent Waterbodies Affected
    Sediments 33%
    Low Dissolved Oxygen/Organic Enrichment 16%
    Other 14%
    Nutrients 10%
    Metals 10%
    More...

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 21
    Percent of Lakes, Reservoirs and Ponds in MISSOURI assessed by agencies for 1997-98 reporting period: 100%
      Percent Waterbodies Affected
    Pesticides 62%
    Nutrients 19%
    Metals 10%
    Low Dissolved Oxygen/Organic Enrichment 10%
    Other 5%
    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: 153 (cause not reported for 1%)
    Percent of Rivers, Streams and Creeks in MISSOURI assessed by agencies for 1997-98 reporting period: 42%
      Percent Waterbodies Affected
    Agriculture 36%
    Municipal Point Sources 24%
    Resource Extraction 22%
    Urban Runoff/Storm Sewers 5%
    Natural Sources 4%
    More...

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 21
    Percent of Lakes, Reservoirs and Ponds in MISSOURI assessed by agencies for 1997-98 reporting period: 100%
      Percent Waterbodies Affected
    Agriculture 67%
    Urban Runoff/Storm Sewers 19%
    Hydromodification/Habitat Modification 10%
    Natural Sources 10%
    Unknown Sources 5%

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




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