Knowledge Base

Stormwater-Illicit Discharge Detection & Elimination

An illicit discharge is any pollutant discharged to a storm sewer system that is harmful to the health or welfare of people, the environment, wildlife or surface waters. Illicit discharges include:

• Sediment washing from construction sites
• Chemical or oil spills
• Sewage from broken sewer lines or overflow from private septic systems
• Pesticides, herbicides or wash water from paint clean up and concrete washout

If you observe an illicit discharge, notify:

City of Rochester Stormwater Hotline at 507-328-2440 (M-F, 8 a.m. - 5 p.m.)

Police Non-Emergency Dispatch at 507-328-6800 (evenings & weekends)

Provide time, date, location, description and contact information in your report.

For more information, please visit our Illicit Discharge | Rochester, MN (rochestermn.gov) website.