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Stormwater Program Home

Stormwater Program

How Can We Help You?

I Need a Permit
Stormwater Code and Regulations
Report a Water Quality Concern
Get Involved in Water Quality
Stormwater Document Library
Stormwater Resources


Public Works is located at 360 SW Avery Ave in Corvallis.
Please submit your Erosion and Sediment Control (ESC) and Stormwater Management (SWM) permit applications at this location.

What We Do

The Benton County Stormwater Program’s main goal is to reduce the amount of pollution and sediment entering our rivers and streams. We have administered a National Pollutant Discharge Elimination System (NPDES) stormwater program since 2007 as part of the national Clean Water Act.

Stormwater Management Plan


The Benton County Stormwater Management Plan (SWMP) outlines how we are meeting our permitting requirements through the NPDES.

Learn More

View more materials about our Stormwater Program by visiting our Document Library.

Best Management Practices


Benton County uses Best Management Practices (BMPs) to minimize environmental impacts during work in County facilities, roadways, and construction sites.

Learn more about water quality, green infrastructure, low impact development, and other topics on our Resources page.

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