NPDES Phase II Permit

The City of Lake Stevens operates its stormwater program under the National Pollutant Discharge Elimination System (NPDES) Phase II Permit. The permit is regulated by the Washington State Department of Ecology as an extension of Federal requirements under the Clean Water Act. The name of the Washington State Permit is the Western Washington Phase II Municipal Stormwater Permit. The current permit term began on July 1, 2019 and extends through July 31, 2024.

A link to the Western Washington Phase II Municipal Stormwater Permit can be found by clicking below:

Western Washington Phase II Municipal Stormwater Permit

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2019 Stormwater Management Manual for Western Washington

2019 Stormwater Management Manual for Western WA

Stormwater Management Manual for Western Washington

The City of Lake Stevens uses the 2019 version of the Stormwater Management Manual for Western Washington issued by the Department of Ecology. This is the official Stormwater Manual adopted by ordinance to guide all new development, redevelopment (including renovations such as new pavement, decks, and other sources of additional stormwater runoff), and city operations to meet compliance of the NPDES permit. Click the image to the left, or the text below, to go to document published on a Department of Ecology website.

2019 SWMMWW

2023 DRAFT Surface Water Management Program

The City of Lake Stevens' 2023 Surface Water Management Program  outlines the City's program for the 2023 calendar year. This document is submitted along with the City's Annual Report to the Washington State Department of Ecology in late March every year.

***The 2023 DRAFT Surface Water Management Program is posted for public comment***  

Please submit all comments to stormwater@lakestevenswa.gov with the subject line, "2023 SWMP DRAFT COMMENT." Comments on this draft will be accepted through May 31, 2023. Please use the link provided below to access the document, or click the picture to the right:  

 2023 Surface Water Management Program

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2023 Draft SWMP

SWMP-2023-coverpage

2022 Annual Report

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​The 2022 Annual Report to the Department of Ecology for the City of Lake Stevens is now available to view. The Annual Report is submitted each year as a summary of the previous year's activities and compliance with the NPDES Phase II Permit. Click THIS LINK to open a new window and read the document.​

DRAFT SMAP - 2023

SMAP Cover Sheet

DRAFT Stormwater Management Action Plan

Prepared March 30, 2023

This plan has been prepared as a NPDES permit requirement for developing a targeted program for improvement to the stormwater facilities of the City of Lake Stevens. Screening all the watersheds, basins, and catchment areas of the city, a ranked list of areas were developed. This list was cross-referenced to the receiving waters and their conditions. For the priority catchments that were determined in this process, a list of applicable stormwater improvement projects were prepared with schedule, scope, and approximate means to fund the work.

***The DRAFT Stormwater Management Action Plan is posted for public comment***  

Please submit all comments to stormwater@lakestevenswa.gov with the subject line, "DRAFT SMAP COMMENT." Comments on this draft will be accepted through May 31, 2023. Please use the link provided below to access the document, or click the picture to the left. 

DRAFT Stormwater Management Action Plan 

Thank you for providing feedback. The product of this effort will inform future updates to stormwater element of the comprehensive plan for the City of Lake Stevens.