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Water: Basics

State NPDES Program Withdrawal Petitions

This website tracks pending and resolved citizen petitions to withdraw states' NPDES authority.

EPA may authorize states to administer the Clean Water Act National Pollutant Discharge Elimination System permitting program. To date, EPA has authorized 46 state programs. During routine oversight activities such as integrated Permit Quality Reviews / State Review Framework assessments, EPA and the states identify ways in which the states can improve their program administration. 

Under EPA's regulations, citizens may petition EPA to withdraw a state's authority to administer the NPDES program. When EPA receives such a petition, EPA generally works with the state and the petitioner to resolve the issues that the petition raises and strengthen the state's NPDES program. 

On this website, you may search for pending and resolved NPDES withdrawal petitions by state, region, date, or keyword, and you may filter each labeled column. You may use the map of the EPA Regions to refine your search. 

You may also sort the petitions according to their status. "Pending" means EPA has received the petition and is working with the state and petitioner to resolve it. "Withdrew petition" means that the petitioner has withdrawn the petition they submitted. "Resolved" means that EPA has resolved the issues raised in the petition and has denied the petition. "Partially resolved" means that EPA has partially denied the petition by resolving some of the issues, while continuing to work with the state and petitioner on other pending issues. "Program withdrawn" would apply if, after conducting investigations, EPA withdrew a state's NPDES authority. 

Please direct questions about this system to the Water Resource Center (Water-Resource_Center@epa.gov).

Map of the US, split into EPA regions 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

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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