POLLUTION LOCATOR| Water | State Clean Water Act Status Report

Clean Water Act Status: OKLAHOMA
 
 
  • 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 OKLAHOMA or in the U.S. by assessed use impairments.
    Rank watersheds in OKLAHOMA 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
    OKLAHOMA contains a portion of 61 watersheds.
    Percentage of Surface Waters with Reported Problems (state + EPA data): 10%
    Number of Waterbodies with Reported Problems (as reported by the state): 531
    Beneficial uses not reported for 100% of waterbodies.

    Priority for Regulation     Number of Waterbodies
    Targeted 89
    High 1
    Medium 172
    Low 243
    Not Assessed for TMDL Priority 0
    Not Reported to US EPA for TMDL Priority 26
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  • Leading Pollutants/Stressors of Surface Waters
    Rivers, Streams, and Creeks
    Number of impaired waterbodies: 394 (cause not reported for 0%)
    Percent of Rivers, Streams and Creeks in OKLAHOMA assessed by agencies for 1997-98 reporting period: 14%
      Percent Waterbodies Affected
    Sediments 45%
    Nutrients 39%
    Pesticides 36%
    Low Dissolved Oxygen/Organic Enrichment 26%
    Metals 16%
    More...

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 137
    Percent of Lakes, Reservoirs and Ponds in OKLAHOMA assessed by agencies for 1997-98 reporting period: 57%
      Percent Waterbodies Affected
    Sediments 69%
    Nutrients 47%
    Pesticides 30%
    Metals 23%
    Low Dissolved Oxygen/Organic Enrichment 18%
    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: 394 (cause not reported for 4%)
    Percent of Rivers, Streams and Creeks in OKLAHOMA assessed by agencies for 1997-98 reporting period: 14%
      Percent Waterbodies Affected
    Agriculture 49%
    Unknown Sources 36%
    Other Sources 18%
    Hydromodification/Habitat Modification 17%
    Urban Runoff/Storm Sewers 16%
    More...

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 137 (cause not reported for 0%)
    Percent of Lakes, Reservoirs and Ponds in OKLAHOMA assessed by agencies for 1997-98 reporting period: 57%
      Percent Waterbodies Affected
    Agriculture 61%
    Unknown Sources 36%
    Urban Runoff/Storm Sewers 29%
    Other Sources 28%
    Resource Extraction 15%
    More...

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




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