The MPCA is hosting a two-hour public informational webinar starting at 9 a.m. on Wednesday, Oct. 28 (Central Time).
MPCA staff will provide an overview of the draft municipal stormwater (MS4) permit and highlight notable changes. Time will be available for participants to ask questions. The MPCA plans to record the webinar and make it available after the meeting.
The MPCA is currently targeting summer 2027 to reissue the new permit.
23831: Comment on draft MS4 general permit
Comment on the draft
The draft Municipal Separate Storm Sewer System (MS4) general permit is available for formal public comment from Oct. 19-Nov. 19, 2026. The markup draft shows the edits since the early draft permit:
MPCA is hosting a two-hour public informational webinar starting at 9 a.m. on Wednesday, Oct. 28, 2026.
Registration information