Water quality protection along county roads

Hennepin County manages 2,200 lane miles of roadway and right-of-way throughout the county. Included in this is the proper treatment and discharge of stormwater. This is governed by the Municipal Storm Sewer System permitting by the Minnesota Pollution Control Agency.

The county inspects drainage infrastructures annually to ensure both proper drainage and that structures are properly filtering for water quality protection purposes. Road upgrades and maintenance include studying water quality for the best management practice and upgrading infrastructure when necessary.

Learn more about the Municipal Separate Storm Sewer System (MS4) permit.

Report suspected stormwater contamination

Any substance that is not stormwater or from a fire hydrant may be considered stormwater contamination. It is illegal to place anything in the stormwater system including:

  • Sediment
  • Oil/petroleum products
  • Soaps/detergents
  • Household or industrial chemicals
  • Agricultural waste
  • Sewage

To report any suspected contamination, go to www.hennepin.us/report-a-problem or contact Kirsten Barta, Environmentalist, at 612-382-3956 or kirsten.barta@hennepin.us

To learn more about proper disposal of the items listed above, visit Hennepin County's green disposal guide.

Report a roadway problem

Use this form to report potholes, debris/branches on the road, snow and ice issues, and drainage issues. Access the form.