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Campus RainWorks Design Challenge

Registration now open for college and university student teams to register for competition to develop innovative approaches to stormwater management.

Clean Water Act Turns 40!

Join us in celebrating the cleanup and protection of America's waters.

Nutrient Pollution

Nutrient pollution is a widespread, costly and challenging environmental problem, and is caused by excess nitrogen and phosphorus in the air and water


Regional Information

Click on a region on the map to find regional water information.

Region 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont Region 2: New Jersey, New York, Puerto Rico, US Virgin Islands Region 2: New Jersey, New York, Puerto Rico, US Virgin Islands Region 3: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West Virginia Region 4: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin Region 6: Arkansas, Louisiana, New Mexico, Oklahoma, Texas Region 7: Iowa, Kansas, Missouri, Nebraska Region 8: Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming Region 9: Arizona, California, Hawaii, Nevada, Pacific Islands Region 10: Alaska, Idaho, Oregon, Washington Region 10: Alaska, Idaho, Oregon, Washington


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