MS4: Municipal Separate Storm Sewer System


What is MS4?

MS4 is the Municipal Separate Storm Sewer System through the Missouri Department of Natural Resources. It’s a conveyance or system of conveyances that is
  • Owned by a state, city, town, village, or other public entity that discharges to waters of the U.S.
  • Designed or used to collect or convey stormwater (including storm drains, pipes, ditches, etc.)
  • Not a combined sewer
  • Not part of a publicly owned treatment works (sewage treatment plant)

Minimum Control Measures

The MS4 Program contains elements called minimum control measures. When implemented, it should result in a significant reduction in pollutants discharged into waterways. The minimum measures are outlined below:

For more information

City of Bolivar MS4 Presentation

City of Bolivar Stormwater Improvement Plan

CoCoRaHS (Community Collaborative Rain, Hail & Snow Network)


Concerns? Questions?

Want to volunteer for clean up projects?

Contact MS4 Coordinator Stephen Rose by email at or by phone at 417-328-5824.