Report a Violation

Report possible violations of environmental laws and regulations.

Please submit your comments or questions to only one contact.

For UCMR 4 questions about monitoring requirements, sample location inventory, schedules or SDWARS, please email or call the UCMR Message Center managed by an EPA contractor, Great Lakes Environmental Center, Inc. (GLEC):

• UCMR Message Center (UCMR4@glec.com)
• 800-949-1581

For all other comments or questions, please use mail or the form below. Be sure to include your email address on the form if you’d like a response.

Mailing Address:
U.S. EPA Office of Ground Water and Drinking Water
26 West Martin Luther King Drive
Mail Stop-140
Cincinnati, OH 45268