Cleanest/Best Watersheds

National Average

Dirtiest/Worst Watersheds

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 watersheds by assessed use impairments
Rank counties by assessed use impairments.
Rank states by assessed use impairments, impairments due to specific causes, or impairments due to specific sources

Lake Erie contains a portion of 0 counties:

Percentage of Surface Waters with Reported Problems (state + EPA data): 98%

There are no waterbodies with reported problems associated with this watershed

Assessed Use Most Frequently Impaired:  Assessed use information not available

Priority for Regulation	Number of Waterbodies
Targeted	0
High	0
Medium	0
Low	0
Not Assessed for TMDL Priority	0
Not Reported to US EPA for TMDL Priority	0

Impairment cause data not available

Impairment cause data not available