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

Cole County Stormwater Management Advisory Committee


The formation of this committee is the result of work done to manage stormwater runoff and erosion control in the unincorporated areas of Cole County.  The Missouri Department of Natural Resources requires cities and counties with urbanized areas to follow guidelines established by the Environmental Protection Agency through the Clean Water Act.  A component of the County’s stormwater management plan is to allow public participation and a citizens’ forum to address stormwater concerns.  Citizens are encouraged to present their concerns and attend the meetings.  A formal process has been established for people to get on the list for discussion at the meeting. A list of meeting dates and rules for addressing the Committee can be found here.  People wishing to speak are required to submit their concern through an online form or they can send in their concern by mail or email.

To submit a request electronically to be put on agenda to speak at meeting, please click here.

A request may also be submitted by mail or in person at our office at:

Cole County Public Works
5055 Monticello Rd
Jefferson City MO 65109

Stormwater Management Advisory Committee Concern Form (printable).

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 "Report a Concern tab".

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.