Municipal storm water permits

Important information concerning the DNR’s MS4 General Permits

Effective May 1, 2014, the DNR has issued WPDES MS4 general permits WI-S050075-2 and WI-S050181-1.

Webinar announcement
Date/time Thursday, October 9, 2014, 1:30 p.m. – 3:30 p.m.
Title WPDES MS4 General Permit No. WI-S050075-2: What Covered Municipalities Need to Know

In May 2014 the Wisconsin Department of Natural Resources reissued Municipal Separate Storm Sewer System (MS4) General Permit No. WI-S050075-2 [PDF]. This MS4 General Permit covers storm water discharges to waters of the state from 142 municipalities statewide. This webinar will provide an overview of the MS4 General Permit, the changes from the previous version, and the compliance schedule. Time for questions will be provided.

This webinar is intended for the municipalities covered under MS4 General Permit No. WI-S050075-2. However, the webinar is open to all who are interested.

Registration The webinar is free of charge and representatives of municipalities covered under MS4 General Permit No. WI-S050075-2 are highly encouraged to participate.

» Register [exit DNR]

Storm water pond

Bioswales capture runoff for infiltration (DNR photo)

More than two hundred municipalities in Wisconsin that include cities, villages, towns and counties within urbanized areas are required to have Municipal Separate Storm Sewer System (MS4) permits under NR 216, Wis. Adm. Code [exit DNR]. Use the links below to find out who is affected, how municipalities comply with permit requirements, and technical assistance documents. Learn more about storm water runoff.

Last revised: Tuesday September 30 2014