An illicit discharge is any connection or discharge which allows non-stormwater to enter into the storm drain system. Illicit Discharge examples include:
- Yard or plant waste dumping into a storm drain
- Concrete washout into a storm drain
- Sanitary sewer pipes that are connected to the storm drain system
- Oil or grease that is dumped or flows into a storm drain
- Washing vehicles or equipment into the storm drain system
Report Illicit Discharge
City staff relies on your assistance to find illicit discharges to the storm drain system. If you see a substance other than rain entering the stormwater system, please email all inquiries or call (507) 238-9461.
Please include the following information if calling in or emailing a report.
- A brief description of the issue
- The location of the discharge or connection
- Contact information (for follow-up purposes only, all reports will remain anonymous)
Reporting at your fingertips!
You can also use the City’s 311 app to report illicit discharges. Just download the app, “Click Make a Request”, then click “Public Utilities”, then “Report an Illicit Discharge”. You can upload a photo, location, and a description of the problem.
![]() |
![]() |
![]() |