An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

NPDES Permits Around the Nation

EPA issues all National Pollutant Discharge Elimination SystemHelpNational Pollutant Discharge Elimination SystemA national program under Section 402 of the Clean Water Act for regulation of discharges of pollutants from point sources to waters of the United States. Discharges are illegal unless authorized by an NPDES permit. (NPDES) water quality permits in Idaho, Massachusetts, New Hampshire, New Mexico, the District of Columbia (Washington, D.C.), U.S. territories, and on federal and tribal lands. All other states have been delegated by EPA to issue their own permits.


Find a NPDES Permit

Choose a state or territory from the map below to find NPDES permits for your area, including:

  • Wastewater permits.
  • Stormwater permits.
  • General permits for industries such as aquaculture, mining and pesticide applications.

Map of the United StatesAlabamaAlaskaAmerican SamoaArizonaArkansasCaliforniaColoradoConnecticutDelawareWashington, DCFloridaGeorgiaGuamHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachussetsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaNorthern Mariana IslandsOhioOklahomaOregonPennsylvaniaPuerto RicoRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirgin IslandsVirginiaWashingtonWest VirginiaWisconsinWyoming

Related pages (Offshore Gulf of Mexico):