Construction Stormwater General Permit
Submitting an application
We have transitioned to a modern work environment. To expedite application processing, please scan or take a photo of all permit forms and email them to our resource mailbox at: ecyrewqianoi@ecy.wa.gov. Also, you must mail the original, signed documents to:
Water Quality Program
PO Box 47696
Olympia, WA 98504-7696
We are currently emailing all coverage documents and permit-related information to the permittee on file.
If you have any questions, contact us at the email addresses below.
Stormwater runoff from construction sites can carry muddy water, debris, and chemicals into local waterways. Sediments, chemicals, and debris can harm aquatic life and reduce water quality.
We require regulated construction sites to get coverage under the Construction Stormwater General Permit. Following the requirements in this permit helps control and reduce water pollution. If water on your construction site is contaminated see this guidance for contaminated water on construction sites.
Operators of regulated construction sites are required to:
- Develop stormwater pollution-prevention plans.
- Implement sediment, erosion, and pollution-prevention control measures.
- Obtain coverage under this permit.
The current permit went into effect on Jan. 1, 2021, and expires on Dec. 31, 2025.
To receive updates about this permit, sign up for our email list.
Permit reissuance
The current permit expires on Dec. 31, 2025. We are in the early stages of reissuing this permit. The permit reissuance process includes gathering early stakeholder input, a formal public comment period on the draft permit, and formal public meetings and hearings. We plan to make a permit reissuance decision at the end of 2025.
Timeline
Spring - Fall 2024: Gather early input
Spring/Summer 2025: Formal public comment period on the draft permit
Late 2025: Decision on reissuance
December 31, 2025: Current permit expires
Applications and forms
I've got permit coverage. Now what?
Check out our eCoverage packet for more information about your requirements.
Need help implementing the permit?
What do I do with contaminated water?
See contaminated water on construction sites for guidance.
Not finding what you're looking for?
See our regional contacts page to help find a person to answer to your questions.
Related links
Contact information
Please find your county below to determine your Permit Administrator:
King
Alyssa Brewer
564-669-4922
alyssa.brewer@ecy.wa.gov
Chelan, Clallam, Douglas, Grays Harbor, Island, Jefferson, Kittitas, Pacific, San Juan, Skamania, Spokane, Whitman
Max Graham
564-200-2505
max.graham@ecy.wa.gov
Adams, Asotin, Benton, Columbia, Franklin, Garfield, Kitsap, Klickitat, Thurston, Walla Walla
Jasper Sogn
360-972-6524
jasper.sogn@ecy.wa.gov
Clark, Cowlitz
Joyce Smith
360-628-2138
joyce.smith@ecy.wa.gov
Ferry, Grant, Lewis, Lincoln, Mason, Okanogan, Pend Oreille, Snohomish, Stevens, Wahkiakum, Yakima
Collin Smith
564-669-9319
collin.smith@ecy.wa.gov
Pierce, Skagit, Whatcom
Melinda Wilson
360-870-8290
melinda.wilson@ecy.wa.gov
CNE and Enforcement Coordinator:
Clay Keown
General Permit Compliance Specialist
360-480-3353
clay.keown@ecy.wa.gov
Construction Stormwater General Permit Questions:
Kendra Henderson
General Permit Writer
360-870-6757
kendra.henderson@ecy.wa.gov