Stormwater Management Action Plan

Rainwater runoff from developed areas – also known as stormwater – is the leading pollution threat to natural waters like lakes, rivers, streams, and marine water bodies in Washington State. Pollution in natural waters is harmful to fish and other animals, people who swim and play near the water, and the industries that rely on clean water bodies.
Runoff contamination comes from our vehicles, landscaping with fertilizer and pesticides, building materials, small spills from machine maintenance and other light industry, and illicit wastewater connections to the drainage system. Polluted runoff can carry metals, unsafe nutrients, pesticides, and harmful organic compounds to natural waters if left untreated.

Project Documents

Task 1: Assess the Condition of the City's Natural Water Bodies

Task 2: Prioritize Surface Water Basins for Stormwater Management Action Planning

Task 3: Create Stormwater Management Action Plan
Review potential stormwater management actions at our Virtual Public Meeting through February 17, 2023 Final SMAP Report March 2023

The Washington State Department of Ecology requires the City to create a SMAP using the process outlined in the Western Washington Phase II Municipal Stormwater Permit. More information on the Stormwater Permit can be found at this link to Ecology’s website.

Provide cleaner waterways
Help resolve residential flooding challenges
Create opportunities for new open spaces, parks, and trees
Efficiently use City funds by finding opportunities to combine efforts with other City departments for stormwater project implementation
Reflect the community’s values on improving water quality and inform how and where we take action

The SMAP is being developed by your stormwater management team at the City using the process shown in the infographic below.

Your input is important to the success of our City’s SMAP development during this next year. We’d like you to share your concerns, help prioritize what locations are addressed first, and shape the actions that will be taken.
Here are ways you can learn more and get involved:
- Sign up for project updates via email or SMS here
- Attend the public meeting to be scheduled later this year (details will be provided in future project updates)
- Contact the City SMAP representative, Andrew Silvia, at 206-957-2836 or by email.