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Underground Injection Control (UIC)
Contact Us

Contact Us About Underground Injection Control

 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.

Copies of most Agency records must be obtained through the Freedom of Information Act (FOIA) process; please do not request agency records using this online form. FOIA requests can be submitted at FOIAonline.

  • Learn more about FOIA and
  • Learn which records are available without a FOIA request.  
Mailing Address:
U.S. Environmental Protection Agency
Underground Injection Control Program
Office of Water, Office of Ground Water and Drinking Water 

1200 Pennsylvania Avenue, NW (Mailcode 4606M)
Washington, DC 20460

If you would like a response, please add your email address.
  • Underground Injection Control Home
  • Class I Industrial and Municipal Waste Disposal Wells
  • Class II Oil and Gas Related Injection Wells
  • Class III Injection Wells for Solution Mining
  • Class IV Shallow Hazardous and Radioactive Injection Wells
  • Class V Wells for Injection of Non-Hazardous Fluids into or Above Underground Sources of Drinking Water
  • Class VI Wells Used for Geologic Sequestration of CO2
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 13, 2023
United States Environmental Protection Agency

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