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

NORTH DAKOTA contains a portion of 47 watersheds.

Percentage of Surface Waters with Reported Problems (state + EPA data): 8%

Number of Waterbodies with Reported Problems (as reported by the state): 133

Beneficial Use Most Frequently Impaired	Percent of All Impairments
Aquatic Life Support	72%
Primary Contact Recreation (Swimming)	56%

Beneficial uses not reported for 100% of waterbodies.

Priority for Regulation	Number of Waterbodies
Targeted	20
High	1
Medium	0
Low	99
Not Assessed for TMDL Priority	2
Not Reported to US EPA for TMDL Priority	11

Rivers, Streams, and Creeks
Number of impaired waterbodies: 69
Percent of Rivers, Streams and Creeks in NORTH DAKOTA assessed by agencies for 1997-98 reporting period: 22%

	Percent Waterbodies Affected
Other Habitat Alterations	62%
Sediments	59%
Pathogens	52%
Nutrients	51%
Low Dissolved Oxygen/Organic Enrichment	20%
More...

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

Rivers, Streams, and Creeks
Number of impaired waterbodies: 69 (cause not reported for 100%)
Percent of Rivers, Streams and Creeks in NORTH DAKOTA assessed by agencies for 1997-98 reporting period: 22%

	Percent Waterbodies Affected
Impairment source not reported	100%

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