Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

JavaScript appears to be disabled on this computer. Please click here to see any active alerts.

NPDES Permits around the Nation

EPA's NPDES permit program

The EPA's National Pollutant Discharge Elimination System (NPDES) permit program helps address water pollution by regulating point sources – such as wastewater treatment plants – that discharge pollutants to waters of the U.S.
Learn more about NPDES

Find a NPDES permit

The EPA issues all NPDES permits in Massachusetts, New Hampshire, New Mexico, the District of Columbia, and U.S. territories (except Virgin Islands), as well as certain federal facilities and permits on Tribal lands. Other states have been authorized by EPA to issue their own permits (see a list of current state authorizations).

Use the map below to search for NPDES permits issued by EPA in each state or territory.

Choose a state or territory from the map below or the list to the right.

Map of the United States

For oil and gas permits in the Gulf of America, visit: