Western WA Phase II Municipal Stormwater Permit (NPDES Permit)

The federal government requires the City of Shoreline to take specific actions to reduce pollution to natural waterways. These actions are identified in the Western Washington Phase II Municipal Stormwater Permit (also known as the NPDES Permit). The purpose of the NPDES Permit is to reduce pollution from urban areas and protect natural waterways.

To learn more about how the City of Shoreline met our NPDES Permit requirements last year, view the City of Shoreline 2023 NPDES Annual Report. 

Stormwater Management Program Plan

Each year, the Surface Water Utility publishes a Stormwater Management Program (SWMP) Plan and invites the public to provide feedback.

The SWMP Plan summarizes planned stormwater activities and projects that the City will carry out during that year. Shoreline residents and property owners can provide comments on the SWMP Plan at any time.

Read the 2024 Stormwater Management Program Plan
Submit Comments on the 2024 Stormwater Management Plan

The Utility provides stewardship opportunities for residents to get involved in reducing pollution and restoring stream habitat.

The Environmental Protection Agency issues the NPDES permit. Washington State Department of Ecology (DOE) administers and acts as the regulatory authority in Washington State. The full permit can be viewed on the Department of Ecology website: NPDES Phase II Municipal Stormwater Permit.