An official website of the United States government.

Due to a lapse in appropriations, EPA websites will not be regularly updated. In the event of an environmental emergency imminently threatening the safety of human life or where necessary to protect certain property, the EPA website will be updated with appropriate information. Please note that all information on the EPA website may not be up to date, and transactions and inquiries submitted to the EPA website may not be processed or responded to until appropriations are enacted.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

EPA in Wisconsin

Contact Us about EPA in Wisconsin

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.

Call Region 5 toll-free at 800-621-8431 (The toll-free number only works in Illinois, Indiana, Michigan, Minnesota, Ohio and Wisconsin.) Call us on weekdays from 8:30 am to 4:30 pm Central time. You can leave a message if you call outside of business hours.

Mailing Address:
US EPA Region 5
77 W. Jackson Blvd
Mail Code R-19J
Chicago, IL 60604-3590

Email: r5hotline@epa.gov

Report a Violation - Report possible violations of environmental laws and regulations.

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