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  2. Waters of the United States

Contact Us about Waters of the United States

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. EPA staff may be teleworking from home without regular access to postal or delivery services in our offices. Thus, it may be several weeks before we can review correspondence sent to us in a hardcopy format. As such, you are strongly encouraged to contact us electronically via this form.

Mailing Address:

U.S. Environmental Protection Agency
1200 Pennsylvania Avenue, NW (Mailcode 4504T)
Washington, DC 20460

If you would like a response, please add your email address.

Waters of the United States

  • About Waters of the United States
    • Programs Utilizing the Definition of Waters of the United States
  • Current Implementation of Waters of the United States
    • Coordination Process and Memoranda to the Field
    • Rule Status and Litigation Update
    • Implementation Tools and Methods
  • Revising the Definition of Waters of the United States
    • Amendments to the 2023 Rule
    • Training Presentations
    • Public Outreach and Stakeholder Engagement Activities
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on May 1, 2025
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