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

MINNESOTA contains a portion of 80 watersheds.

Percentage of Surface Waters with Reported Problems (state + EPA data): 3%

Number of Waterbodies with Reported Problems (as reported by the state): 143

Beneficial Use Most Frequently Impaired	Percent of All Impairments
Aquatic Life Support	71%
Primary Contact Recreation (Swimming)	37%

Beneficial uses not reported for 100% of waterbodies.

Priority for Regulation	Number of Waterbodies
Targeted	1
High	8
Medium	71
Low	31
Not Assessed for TMDL Priority	0
Not Reported to US EPA for TMDL Priority	32

Rivers, Streams, and Creeks
Number of impaired waterbodies: 131
Percent of Rivers, Streams and Creeks in MINNESOTA assessed by agencies for 1997-98 reporting period: 13%

	Percent Waterbodies Affected
Pathogens	43%
Sediments	33%
Low Dissolved Oxygen/Organic Enrichment	24%
Mercury	11%
Ammonia	11%
More...

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

Rivers, Streams, and Creeks
Number of impaired waterbodies: 131 (cause not reported for 100%)
Percent of Rivers, Streams and Creeks in MINNESOTA assessed by agencies for 1997-98 reporting period: 13%

	Percent Waterbodies Affected
Impairment source not reported	100%

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