Stormwater Program
Stormwater Program
Starting in 2007, Benton County staff from Community Development, Environmental Health, and Public Works developed and successfully implemented a National Pollutant Discharge Elimination System (NPDES) program.
Program Requirements
The program requirements are part of the Clean Water Act that local governments and private organizations must comply with for discharges of pollutants into the waters of the United States and regulating quality standards for surface waters. This means that there are many actions that the County is taking in the ‘urbanized areas’ around the cities of Corvallis and Philomath known as the Federal Urbanized Area.
Program Goals
The overall goal of the Benton County Stormwater Program is to reduce the volume of runoff from current development (for example parking lots, subdivisions) and the developing landscape, while reducing the amount of pollutants carried by stormwater runoff to our rivers and streams. In order to meet this overall goal Benton County staff has developed and implemented Six Minimum Control Measures.
Stormwater Management Plan
The Benton County Stormwater Management Plan was developed by Benton County Community Development, Environmental Health, and Public Works in 2007 and adopted by the Benton County Board of Commissioners. Benton County updated its NPDES Phase II MS4 Permit on February 21, 2023 and the corresponding amendments to Benton county Code went into effect on March 23, 2023. Previous versions of the SWMP can be found in the Document Library under the “Historical Documents” section.
Best Management Practices (BMP)
Benton County has established ‘Best Management Practices (BMPs)’ to help minimize environmental impacts of our daily work in County facilities, roadways, and construction sites. These Best Practices include proper erosion and sediment control and reducing our impact footprint on Benton County’s natural resources.
Reporting Spills
Emergency/Hazardous Spills
Dial 911
Be ready to provide location, severity, actions taken, and responsible party.
Roadway Spills
Call Benton County Public Works:
(541) 766-6821
Spills on Private Land
Call Benton County Environmental Health:
(541) 766-6841