Online Informational Presentation & Public Hearing
Construction Stormwater General Permit
April 24, 2025, 5 p.m. PT, Online webinar
We invite you to attend the online informational presentation and public hearing for the draft 2026 Construction Stormwater General Permit, and share your comments with us.
The event
We are hosting the webinar and hearing during the evening of April 24. The presentation will explain the draft permit's proposed changes and answer questions prior to the public hearing. The hearing provides an opportunity to provide verbal testimony on the draft permit. The public hearing will begin immediately following the presentation and will conclude when testimony is complete.
After registering, you will receive a confirmation email containing information about joining the meeting, including joining by phone only.
The draft permit and supporting documents are available for review on the Construction Stormwater General Permit webpage. You can submit written comments until 11:59 p.m. on May 9, 2025. Verbal testimony will receive the same consideration as written comments.
The permit
Stormwater runoff from construction site activities disturb the land and, when it rains, can carry muddy water, debris, and chemicals into local waterways. Sediment, chemicals, and debris can harm aquatic life and reduce water quality.
The Construction Stormwater General Permit assures that operators of regulated construction sites develop stormwater pollution-prevention plans and implement sediment, erosion, and pollution-prevention control measures to protect the waters of Washington.
Public involvement
The current permit was last issued Jan. 1, 2021 and is scheduled to expire Dec. 31, 2025. Our public comment period invites you to provide input directly to Ecology. After the close of the public comment period, we will prepare a response to comments, describe any changes to the draft permit, and decide on permit reissuance. We expect to reissue the final permit late 2025.
Time
Questions
To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.
Comment period
Formal Draft Comment Period — Construction Stormwater General Permit
Closes: May 9, 2025, 11:59 p.m.
See details: