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Contact Us About Monitoring Unregulated Drinking Water Contaminants

Please submit your comments or questions to only one contact.

For UCMR 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 (UCMR5@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