NPDES Phase II Municipal Stormwater Permit
The Western Washington Phase II Municipal Stormwater Permit, also known as the National Pollutant Discharge Elimination System (NPDES) Permit, was first issued on January 17, 2007, by the Washington State Department of Ecology under the provisions of the U.S. Environmental Protection Agency's Clean Water Act. The current five-year permit expires July 31, 2024, and a new permit takes effect August 1, 2024. There are 83 cities and five counties in Western Washington that must comply with the permit.
The permit has specific requirements and deadlines for the implementation of programs to minimize the discharge of pollution from municipal stormwater systems into our streams, lakes, rivers, and wetlands to protect their beneficial uses (swimming, boating, fishing, aesthetics) and other environmental resources.
The City of Renton is classified as a "small" municipal separate stormwater sewer system (MS4).
Stormwater Management Program Plan
The Stormwater Management Program Plan describes the city’s planned actions and activities for the year to meet the requirements of the Western Washington Phase II Municipal Stormwater Permit issued by the Washington State Department of Ecology. Revisions to the 2024 Plan are needed to reflect the new requirements and planned actions established by the 2024-2029 Permit which becomes effective August 1, 2024.
The city encourages public comment and participation in the development and implementation of the Stormwater Management Program Plan. Resident feedback will shape the next iteration of the plan.
Please provide your comments on the REVISED DRAFT 2024 Stormwater Management Program Plan to Kristina Lowthian by August 7, 2024. Comments received after this date will be accepted for the following year's Stormwater Management Program Plan.