Stormwater Permit

Western Washington Phase II Municipal Stormwater Permit

The City of Auburn is regulated under a National Pollutant Discharge Elimination System (NPDES) municipal stormwater permit issued by the Washington State Department of Ecology. Requirements of the Permit include the development and annual update of a Stormwater Management Program (SWMP) Plan which details the actions and activities to be implemented by the City in order to reduce the discharge of pollutants.

The SWMP is to include measures related to Stormwater Planning, Public Education and Outreach, Public Involvement and Participation, MS4 Mapping and Documentation, Illicit Discharge Detection and Elimination, Controlling Runoff from New Development, Redevelopment and Construction Sites, Operations and Maintenance, and Source Control Program for Existing Development. The Permit lists specific actions and methods that the City must implement through the SWMP.

The City encourages public comment and participation in the development and implementation of the City’s Stormwater Management Program Plan (SWMP Plan). The SWMP Plan is updated in the first quarter of each year prior to being submitted to the Department of Ecology by March 31st. Feedback on the draft 2020 SWMP Plan will accepted through February 28, 2020 and will be used to help shape the next iteration of the plan. Please direct your comments to Chris Thorn, Water Quality Programs Coordinator, 25 West Main, Auburn, WA 98001, or via email.

City of Auburn 2019 Stormwater Management Program Plan (PDF)
City of Auburn 2020 Stormwater Management Program Plan (PDF)

Additional resources