The City of Seattle is in the process of updating Seattle’s Stormwater Code and Stormwater Manual as required by the Washington State Department of Ecology.
The proposed legislation for the 2026 Stormwater Code is available at the Council Bill 121190 website under the “Text” tab.
Upcoming Meeting Dates
- May 14, 2026 – Governance & Utilities Committee anticipated vote to recommend passing the legislation.
- May 19, 2026 – Full City Council Meeting anticipated vote to adopt the proposed 2026 Stormwater Code.
The Council will confirm the agenda prior to the meetings. Refer to the City Council website for detailed information, to confirm the agenda items, and how to submit public comment.
This information, along with information on past public meetings, is available on SDCI’s Stormwater Code and Manual Update 2026 website.