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 TENNESSEE or in the U.S. by assessed use impairments.
Rank watersheds in TENNESSEE by assessed use impairments
Rank states by assessed use impairments, impairments due to specific causes, or impairments due to specific sources

TENNESSEE contains a portion of 53 watersheds.

Percentage of Surface Waters with Reported Problems (state + EPA data): 22%

Number of Waterbodies with Reported Problems (as reported by the state): 352

Rivers, Streams, and Creeks
Number of impaired waterbodies: 316
Percent of Rivers, Streams and Creeks in TENNESSEE assessed by agencies for 1997-98 reporting period: 88%

	Percent Waterbodies Affected
Sediments	68%
Pathogens	29%
Other Habitat Alterations	28%
Low Dissolved Oxygen/Organic Enrichment	28%
Nutrients	15%
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NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.

Rivers, Streams, and Creeks
Number of impaired waterbodies: 316 (cause not reported for 0%)
Percent of Rivers, Streams and Creeks in TENNESSEE assessed by agencies for 1997-98 reporting period: 88%

	Percent Waterbodies Affected
Agriculture	45%
Hydromodification/Habitat Modification	45%
Urban Runoff/Storm Sewers	24%
Construction	17%
Resource Extraction	13%
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NOTE: Possible inconsistencies between data on (a) impaired waterbodies and (b) percentage of waterbodies assessed.