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National Pollutant Discharge Elimination System (NPDES)

Contact Us About NPDES

Click on a link below for EPA headquarters, EPA regional, state, and tribal contacts for a specific NPDES program area:

Please use the form below to send us comments or questions. Be sure to include your email address if you would like a response.

Report an environmental violation

Report a Violation

Report possible violations of environmental laws and regulations.

Mailing Address:

U.S. Environmental Protection Agency
National Pollutant Discharge Elimination System Program
Office of Water, Office of Wastewater Management
1200 Pennsylvania Avenue, NW (Mailcode 4203M)
Washington, DC 20460

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