Impaired Waters and TMDLs
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Impaired Waters and TMDLs Program in your EPA Region, State or Tribal Land

Find your region to explore Clean Water Act Section 303(d) program resources.

Region 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, VermontRegion 2: New Jersey, New York, Puerto Rico, US Virgin IslandsRegion 3: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West VirginiaRegion 4: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, WisconsinRegion 6: Arkansas, Louisiana, New Mexico, Oklahoma, TexasRegion 7: Iowa, Kansas, Missouri, NebraskaRegion 8: Colorado, Montana, North Dakota, South Dakaota, Utah, WyomingRegion 9: Arizona, California, Hawaii, Nevada, Pacific IslandsRegion 10: Alaska, Idaho, Oregon, Washington
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Last updated on August 31, 2022