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Where You Live
After selecting a state below, you'll have access to the following documents and data for each state:
- Repository of water quality standards documents, detailing the water quality standards in effect for Clean Water Act purposes
- Total maximum daily load (TMDL) data, including a list of impaired waters (impairments include algal growth, dissolved oxygen, and nutrients)
- Nutrient data, which you can restrict to specific nutrients or counties
- Ecoregional data within specific geographic regions (ecoregions). More information about ecoregions.
Choose a state or territory from the map below.
Alabama
Alaska
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
Arizona
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
Arkansas
California
Colorado
Connecticut
Delaware
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
District of Columbia
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
Florida
Georgia
Hawaii
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
Idaho
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
Montana
Nebraska
Nevada
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
Rhode Island
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
South Carolina
South Dakota
Tennessee
Texas
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
Utah
Vermont
Virginia
Washington
West Virginia
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
- Ecoregions:
Wisconsin
Wyoming
Pacific Islands
Puerto Rico
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database
US Virgin Islands
- Water Quality Standards
- Nutrient Problems
- Nutrient Solutions
- Nutrient Database