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Minimum Control Measures of the Municipal Separate Storm Sewer System (MS4) Permit

The MS4 general permit is designed to reduce the amount of sediment and other pollutants entering state waters from stormwater systems. Entities regulated by the MS4 general permit must develop a stormwater pollution prevention program and adopt best practices. Learn more on the Complying with the MS4 general permit page. A general permit covers multiple entities with similar operations and types of discharges. Issuing general permits allows for faster and more efficient permitting compared to issuing individual permits.

This page is a home page for the 2020 Minimum Control Measures of the Minnesota MS4 permits. Information found within this page can be used to find the requirements and help meet the requirements cities must meet in Minnesota for the MS4 permit. Additional information regarding the MS4 permit can be found on the Municipal Separate Storm Sewer System wiki page.

Minimum Control Measures

• Minimum Control Measure 1 - Public Education and Outreach
• Minimum Control Measure 2 - Public Participation/Involvement
• Minimum Control Measure 3 - Illicit Discharge Detection and Elimination
• Minimum Control Measure 4 - Construction Site Stormwater Control
• Minimum Control Measure 5 - Post-Construction Stormwater Management
• Minimum Control Measure 6 - Pollution Prevention/Good Housekeeping

Related Information

• Stormwater Program for Municipal Separate Storm Sewer Systems (MS4)
• MS4 Digital Document Library
• Minimum Control Measures (MCMs)
• Total Maximum Daily Loads (TMDLs)
• MPCA MS4 website
• MPCA MS4 staff contact information