Municipal Separate Storm Sewer System (MS4)

Documents

MnDOT MS4 NPDES permits

Metro District

• MnDOT Metro District SWPPP (PDF)

Greater Minnesota

• MS4 out-state district application (PDF)
• MnDOT Outstate Districts SWPPP (PDF)
• 2019 MnDOT Outstate Districts Annual Report (Word)
• Submit comments on the Greater Minnesota MS4 Permit through December 31st, 2021
  

Educational materials

• Keep MN's Waters Clean Brochure (PDF)
• MN Rest Area poster (PDF)
• Don't Dump (PDF)
• Don't Litter (PDF)
• Get the Scoop (PDF)
• Winter Operations Program (PDF)