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.  A newly adopted Stormwater Ordinance has been incorporated into this plan.
Current Cole County SWMP
Map of Urbanized Area and Representative Outfalls

No Dumping

Permit Coverage for Cole County Small Municipal Separate Storm Sewer System

Cole County was approved for coverage under Missouri Department of Natural Resources General Permit MOR04C - the comprehensive permit for municipal separate storm sewer systems.  Cole County received an operating permit on November 4, 2021.  The general permit may be viewed here.  Additionally, a summary of the proposed Stormwater Management Plan (SWMP) may be seen here.  As required by our MOR04C permit, a new Stormwater Ordinance has been implemented as part of our Stormwater Management Plan.  The ordinance details and applicability area viewed at Stormwater Ordinance | Cole County, MO .  Public comments on SWMP may be directed to Cole County Public Works Director Eric Landwehr, at or 5055 Monticello Road, MO 65109 or 573-636-3614. 

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 Cole County's stormwater management plan is to allow for public participation and a citizens' public 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 have their concerns put on the meeting agenda.  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 the can submit through 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".