The MPCA is in the process of reissuing the MS4 General Permit. At this time, the MPCA anticipates the MS4 General Permit to be reissued in Fall 2019. Although the current MS4 General Permit expired on July 31, 2018, those covered under the current permit will continue to operate under it until the MPCA reissues the new permit. The new permit is subject to the NPDES Stormwater Final MS4 General Permit Remand Rule, which emphasizes permit requirements to be “clear, specific, and measurable.”
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Informal pre-public notice
Thank you for participating in the informal pre-public notice comment period (May 7, 2019 through June 6, 2019) on the initial draft MS4 General Permit. The MPCA is in the process of reviewing all comments and considering changes to the permit before the formal public comment period, which is planned for later this summer. The initial draft permit and received comments are available below.
Initial Draft MS4 General Permit
File:Draft MS4 Permit (5.7.2019).pdf
Comments on Initial Draft MS4 General Permit
File:Organized Comments on Draft MS4 Permit.pdf