The 2026 Construction Stormwater General Permit Draft was just released. This release opened the public comment period and your opportunity to have say in the regulations that you interact with on a daily basis. The public comment period is only open from March 19, 2025- May 9, 2025, so don’t wait if you plan to comment!

Helpful Links:

2026 Construction Stormwater General Permit Draft

2026 Construction Stormwater General Permit Draft Redline

2026 Construction Stormwater General Permit Fact Sheet

Ecology’s Public Comment Submission Portal

Ecology’s Construction Stormwater General Permit Home Page

Public Comment Guide:

Scroll through the screen below, or hover and click the full screen symbol to read our public comment guide in full screen:

Construction Writing a public comment by Brandon Boyd