Hennepin County Transportation is responsible for managing 2,200 lane miles of roadway throughout the county. Part of that responsibility is proper treatment and discharge of stormwater. As a stormwater-generating public agency in an urban area, the county is responsible for applying for and maintaining a Municipal Separate Storm Sewer System (MS4) permit.
About MS4 permits
MS4 permits are designed to reduce water pollution from non-point sources by controlling and regulating stormwater discharge. The Minnesota Pollution Control Agency (MPCA) is responsible for revising and issuing the MS4 permits as directed by the legislature and U.S. Environmental Protection Agency (EPA).
Any public entity (including counties, cities, townships, and tribal governments) that owns a storm sewer system in an urbanized area must hold an MS4 permit. This does not include wastewater treatment, which is permitted separately.
Hennepin County is responsible for the stormwater from the county road system, including right-of-ways. This includes water exiting construction and repair projects as well as from day-to-day operations of the roads. The county partners with local cities and other agencies to properly direct stormwater, reduce impacts, and achieve water quality goals.
Public comment period
As part of the reporting process, a public comment period or meeting is required to allow residents to provide comments and feedback. In order to reach more residents in such a large county, Hennepin has opted to have a public website in place of a meeting.
The following documents are available for review and comment:
Your feedback is encouraged and will be incorporated into future stormwater management operations where feasible.
If you have any questions about Hennepin County’s permit, stormwater management, or to submit a comment, contact Kirsten Barta at email@example.com or 612-543-3373. If you wish to submit your written comment by mail, address it to:
Hennepin County Department of Environment and Energy
Attn: Kirsten Barta
701 4th Ave S
Minneapolis, MN 55415
Comments must be submitted or postmarked by December 31, 2018. All comments and responses will be publicly available by January 4, 2019.
Thank you for your interest in helping Hennepin County protect its natural resources. Your feedback is valuable to continuing to improve county operations and reduce environmental impacts.