POLLUTION LOCATOR| Water | State Clean Water Act Status Report

Clean Water Act Status: OHIO
 
 
  • 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 OHIO or in the U.S. by assessed use impairments.
    Rank watersheds in OHIO 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
    OHIO contains a portion of 43 watersheds.
    Percentage of Surface Waters with Reported Problems (state + EPA data): 14%
    Number of Waterbodies with Reported Problems (as reported by the state): 881
    Beneficial Use Most Frequently Impaired Percent of All Impairments
    Aquatic Life Support 96%
    Overall Use 4%
    Beneficial uses not reported for 100% of waterbodies.


    Priority for Regulation     Number of Waterbodies
    Targeted 25
    High 58
    Medium 564
    Low 209
    Not Assessed for TMDL Priority 0
    Not Reported to US EPA for TMDL Priority 25
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  • Leading Pollutants/Stressors of Surface Waters
    Rivers, Streams, and Creeks
    Number of impaired waterbodies: 740 (cause not reported for 3%)
    Percent of Rivers, Streams and Creeks in OHIO assessed by agencies for 1997-98 reporting period: 10%
      Percent Waterbodies Affected
    Low Dissolved Oxygen/Organic Enrichment 44%
    Other Habitat Alterations 43%
    Sediments 40%
    Flow Alterations 17%
    Metals 17%
    More...

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 140 (cause not reported for 5%)
    Percent of Lakes, Reservoirs and Ponds in OHIO assessed by agencies for 1997-98 reporting period: 0%
      Percent Waterbodies Affected
    Low Dissolved Oxygen/Organic Enrichment 67%
    Nutrients 62%
    Sediments 60%
    Metals 27%
    Pesticides 24%
    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: 740 (cause not reported for 5%)
    Percent of Rivers, Streams and Creeks in OHIO assessed by agencies for 1997-98 reporting period: 10%
      Percent Waterbodies Affected
    Hydromodification/Habitat Modification 42%
    Municipal Point Sources 39%
    Agriculture 35%
    Other Sources 18%
    Resource Extraction 15%
    More...

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 140 (cause not reported for 6%)
    Percent of Lakes, Reservoirs and Ponds in OHIO assessed by agencies for 1997-98 reporting period: 0%
      Percent Waterbodies Affected
    Agriculture 67%
    Other Sources 49%
    Land Disposal 35%
    Urban Runoff/Storm Sewers 31%
    Municipal Point Sources 30%
    More...

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




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