Documents MnDOT MS4 NPDES permits Metro District MnDOT Metro District SWPPP (PDF) Greater Minnesota MnDOT Greater Minnesota MS4 SWPPP (PDF) 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)
