Cole County Stormwater Management Plan for the Unicorporated Urbanized Area

Cole County has a Small Municipal Separate Storm Sewer System (MS4) for the urbanized areas located within the unincorporated portions of the County.  Because the areas in and around Jefferson City have a population of 1,000 people per square mile, the urbanized areas, as defined by the United States Census Bureau, are a Missouri "regulated MS4" and must obtain a National Pollutant Discharge Elimination System (NPDES) Stormwater Permit.  As a result, the County must also develop a Stormwater Management Plan (SWMP) for these areas.

Where is the Urbanized Area (MS4) ????
No Dumping

What does this mean for citizens, contractors, and developers?

More information about how these regulations may affect you may be seen here.

All citizens are encouraged to report stormwater concerns or illegal discharges into the storm sewer system to Cole County Public Works.
Concerns or complaints can be made by calling 573-636-3614 or email by clicking the tab on left side of screen.

Cole County Stormwater Management Plan

The SWMP summarizes the County's intentions to reduce the amount of pollution in its stormwater runoff in the urbanized areas by addressing the six minimum control measures of concern listed in the NPDES permit.  These minimum control measures are as follows:
  • Public Education and Outreach
  • Public Involvement and Participation
  • Construction Site Runoff Control
  • Pollution Prevention/Good Housekeeping
  • Illicit Discharge Detection and Elimination 
The current version of the Cole County Stormwater Management Plan can be viewed here.