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