Stormwater Code and Manual Update 2026 - Get Involved

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Get Involved

We will host a virtual public meeting on July 15, 2025, to describe the proposed changes to the 2026 Stormwater Code and Manual Update. The meeting details are provided below.

July 2025 Public Draft Comment Period

The first public review draft comment period is July 8-August 8, 2025. We will post the draft documents of the 2026 Stormwater Code by July 8, 2025. We will consider any comments we receive after August 8 as time allows. There will also be a second public review draft this fall or winter.

First Public Review Period and Virtual Meeting Details:

When:
July 15, 2025
1 – 3 PM

Please register to attend the meeting.

We will post a recording on this website shortly after the public meeting.

How to Comment:

You can provide feedback on the draft Seattle Stormwater Code and Manual by:

Downloading a Stormwater Draft Comment Log spreadsheet
Adding your comments
Sending the file to SPUStormwaterCodeRev@seattle.gov

Email correspondence is preferred, but paper comments may also be mailed to:

Sherell Ehlers
Seattle Public Utilities
700 Fifth Ave, Suite 4400
PO Box 34018
Seattle, WA 98124-4018

When commenting on the Stormwater Code or Manual, please include as much of the following information as you can:

Number and title of the code or manual section (for example: 22.805.070.D.a or Volume 1, Section 3.2)
Specific code language you’re suggesting
Explanation of why the code should be changed

We may not be able to respond to individual comments, but we will take all comments into consideration.

Stay Connected

Sign up for the SDCI Stormwater Code Updates Listserv if you want to get email updates on project milestones, available documents, and upcoming public meetings, or email us at SPUStormwaterCodeRev@seattle.gov.

You can find information about past public meetings and view their documents on our Background page.