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, November 20, 2014, 1:30 p.m. – 3:30 p.m.
Title WPDES MS4 General Permit No. WI-S050181-1: What it means for affected municipalities

In May 2014 the Wisconsin Department of Natural Resources issued Municipal Separate Storm Sewer System (MS4) General Permit No. WI–S050181–1 [PDF]. This MS4 General Permit will be used by the department to cover municipalities that the department believes require coverage under the MS4 General Permit based on Chapter NR 216, Wis. Adm. Code, and the results of the 2010 decennial U.S. census that identifies municipalities that lie within designated urbanized areas or that have a population of 10,000 or more people. This webinar will provide an overview of the MS4 permit program, the application process, and the MS4 General Permit requirements. Time for questions will be provided.

This webinar is intended for the municipalities notified to apply for coverage under MS4 General Permit No. WI–S050181–1. However, the webinar is open to all who are interested. View a list of the notified municipalities [PDF].

Registration The webinar is free of charge and representatives of the notified municipalities are highly encouraged to participate.

» Register [exit DNR]

Informational webinar, October 9, 2014

WPDES MS4 General Permit No. WI–S050075–2: What Covered Municipalities Need to Know

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: Thursday November 20 2014