Puget Sound Olympia

Municipal Stormwater

WSDOT Permit Documents and Information

Washington State Department of Transportation NPDES Municipal Stormwater Permit

Previous Permit Documents

Focus Sheets and Frequently Asked Questions

Additional Resources

Information on WSDOT's plans to implement the permit.

For more information on WSDOT’s stormwater management program, including the application submitted for the statewide stormwater permit to Ecology in March 2003, NPDES Annual Progress Reports, and WSDOT’s revised Highway Runoff Manual: www.wsdot.wa.gov/Environment/waterquality/

WSDOT submitted an application to Ecology in March 2003. The application is posted on the WSDOT Webpage at:

The stormwater NPDES annual progress reports from WSDOT are posted at: www.wsdot.wa.gov/Environment/waterquality/#AnnualReports

WSDOT’s revised Highway Runoff Manual