Small MS4

The Jefferson County Commissioners hold a small Municipal Separate Storm Sewer System (MS4) permit under the National Pollutant Discharge Elimination System (NPDES ) which sets limits on what can be discharged, monitoring and reporting requirements, and other provisions to ensure that the discharge does not affect water quality or people's health. Multiple Jefferson County communities are covered under this permit, and they collectively form the Jefferson County & Other's Small MS4. Additionally, to ensure a uniform approach of complying with the permit standards, and to share resources among the co-permitteed communities, the Jefferson County & Others Stormwater Consortium was created.

The permit outlines 6 Minimum Control Measures or MCMs that entities are responsible for making progress and meeting goals for each category. To ensure permit compliance among those MS4 communities, the Jefferson County Commissioners and the Jefferson Soil & Water Conservation District formed a working partnership to cooridniate and implement these 6 MCMs.

Hexagon with "Jefferson County & Others Stormwater Consortium" text, Ohio outline, and two water droplets inside.

The Jefferson County & Other's Stormwater Consortium:

A storm drain with a "No Dumping, Drains to River" sign and the text "The Ohio River Begins on Your Street."

Public Education

Because stormwater runoff is generated from dispersed land surfaces, such as pavements, yards, driveways, and roofs, efforts to control stormwater…

A stone bridge over a calm river with surrounding greenery on a sunny day.

Public Involvement & Participation

A single regulatory agency or municipal office working alone cannot be as effective in reducing stormwater pollution. There has to be participation…

A black drainage pipe near a stream with fallen leaves and a tree nearby.

Illicit Discharge Detection and Elimination

Illicit discharges are generally any discharge into a storm drain system this is not composed entirely of stormwater. The exceptions include water…

Construction site with gravel, dirt, a puddle, a yellow object, and an orange fence.

Construction Site Runoff

Poorly maintained BMPs can result in significant quantities of sediment being discharged to storm drains.Uncontrolled stormwater runoff from…

A culvert with a metal grate surrounded by rocks, alongside a road and grassy area with wildflowers.

Post-Construction Stormwater Runoff

For the past two decades the rate of land development across the country has been more than two times greater than the rate of population growth. If…

A white tarp shelter with a blue tarp inside, a red truck, and construction equipment nearby. Trees are in the background.

Good Housekeeping

Good housekeeping practices are a requirement for all municipal facilities operating under an MS4 permit. This includes activities such vehicle…

Topographical map of a drainage area (7.439 acres) with contour lines, building footprints, and a legend.

Stormwater Pollution Prevention Plan Review

For sites that disturb 1+ acres, or part of a greater common plan of development

MS4 Annual Reports

Stormwater Management Plan

A Stormwater Managment Plan, often abreviated as SWMP, is the guiding document for how an entity will manage stormwater. A SWMP will identify the 6…

Stormwater YouTube

Jefferson SWCD Stormwater Channel

MS4 Map Viewer

Find the delineated boundaries of the Jefferson County & Others MS4, plus others in Ohio

Municipal Operations Portal

The Municipal Operations Portal is desinged for the MS4 community. On this page, you will find various resources including; training videos, maps…

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