An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Contact Us About Water Data and Tools

Overview

Report an environmental violation

Report a Violation

Report possible violations of environmental laws and regulations.

Please use the form below to send us comments or questions. Be sure to include your e-mail address if you’d like a response.

Mailing Address:

Environmental Protection Agency
Office of Water
Project Management Office
M/C #4101M
1200 Pennsylvania Avenue, N.W.
Washington, DC 20460

NHDPlus

If you require technical support for NHDPlus, please send an email to NHDPlus Support (nhdplus-support@epa.gov) with your question.

WQX/STORET

For questions or comments pertaining to WQX, please contact WQX Support at 1-800-424-9067 or WQX@epa.gov.

Drinking Water

Are you looking for answers to drinking water questions?

Take a look at our Questions & Answers database.

Do you have a drinking water comment or question?

Please use our online form to send us comments or questions. Be sure to include your e-mail address to receive a response.
Note: If your comment is related to a specific web page, please include the link or URL.

Water Modeling Workgroup

Contact EPA's Water Modeling Workgroup at Water_Modeling_Workgroup@epa.gov

How’s My Waterway

Do you have a question or comment about How’s My Waterway?

Email us at: mywaterway@epa.gov

Top of Page

Please enter a name to address you by.
Which tool do you need help with or have questions about?
Please enter your comments.