Search here for MS4s that have obtained municipal storm water permit coverage from the DNR pursuant to subch. I of NR 216, Wis. Adm. Code. Use this query page to find municipalities with permit coverage under the Municipal Separate Storm Sewer System (MS4) general permit number WI-S050075 or an individual MS4 permit. This search does not provide any information on the status of facilities with non-storm water (wastewater) permit coverage.
* This data is subject to our Legal Notices, Disclaimers, and Terms of Use.