Contact Us about EPA in Wisconsin
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
Call us on weekdays from 8:00 am to 4:30 pm Central time. You can leave a message if you call outside of business hours.
US EPA Region 5
77 W. Jackson Blvd
Mail Code RE-19J
Chicago, IL 60604-3590