POLLUTION LOCATOR| Water | State Clean Water Act Status Report

Clean Water Act Status: SOUTH DAKOTA
 
 
  • 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 SOUTH DAKOTA or in the U.S. by assessed use impairments.
    Rank watersheds in SOUTH DAKOTA by assessed use impairments
    Rank states by assessed use impairments, impairments due to specific causes, or impairments due to specific sources

  •   [ top ]
     
     
  • 1998 Clean Water Act Status
    SOUTH DAKOTA contains a portion of 53 watersheds.
    Percentage of Surface Waters with Reported Problems (state + EPA data): 3%
    Number of Waterbodies with Reported Problems (as reported by the state): 161
    Beneficial Use Most Frequently Impaired Percent of All Impairments
    Agriculture 73%
    Wildlife Support 73%
    Aquatic Life Support 71%
    SecondaryContact Recreation (Boating) 71%
    Primary Contact Recreation (Swimming) 59%
    Drinking Water Supply 6%
    Industrial 1%
    Beneficial uses not reported for 100% of waterbodies.


    Priority for Regulation     Number of Waterbodies
    Targeted 50
    High 14
    Medium 51
    Low 43
    Not Assessed for TMDL Priority 0
    Not Reported to US EPA for TMDL Priority 3
  •   [ top ]
     
     
  • Leading Pollutants/Stressors of Surface Waters
    Rivers, Streams, and Creeks
    Number of impaired waterbodies: 71
    Percent of Rivers, Streams and Creeks in SOUTH DAKOTA assessed by agencies for 1997-98 reporting period: 32%
      Percent Waterbodies Affected
    Ammonia 56%
    Sediments 30%
    Pathogens 15%
    Low Dissolved Oxygen/Organic Enrichment 8%
    Metals 7%
    More...

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


    Lakes, Reservoirs, and Ponds
    Number of impaired waterbodies: 82
    Percent of Lakes, Reservoirs and Ponds in SOUTH DAKOTA assessed by agencies for 1997-98 reporting period: 18%
      Percent Waterbodies Affected
    Nutrients 98%
    Other 62%
    Sediments 16%
    Pathogens 12%
    pH 12%
    More...

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




  •   [ top ]
     
     
  • Leading Sources of Water Quality Problems
    Rivers, Streams, and Creeks
    Number of impaired waterbodies: 71 (cause not reported for 100%)
    Percent of Rivers, Streams and Creeks in SOUTH DAKOTA assessed by agencies for 1997-98 reporting period: 32%
      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: 82 (cause not reported for 100%)
    Percent of Lakes, Reservoirs and Ponds in SOUTH DAKOTA assessed by agencies for 1997-98 reporting period: 18%
      Percent Waterbodies Affected
    Impairment source not reported 100%

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




  •   [ top ]