Industrial 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 can pick up pollution from factories and businesses. Those contaminants are carried into waterways and harm fish and other aquatic life. The Industrial Stormwater General Permit (ISGP) helps industrial facilities comply with federal regulations that reduce pollution. We require most industrial sites in Washington to monitor, measure, and reduce stormwater pollution leaving their site.
The current permit went into effect on Jan. 1, 2020, and expires Dec. 31, 2024.
Join our email list to receive updates about this permit.
Current permit and related documents
- Current permit (Effective Jan. 1, 2020)
- Errata sheet
- Appendix 3 — SWPPP certification form
- Appendix 4 — Existing discharges to impaired waters. Choose "Industrial Stormwater 303(d)" from the Report Details drop-down.
- Appendix 5 — Dischargers subject to TMDL requirements
- Fact sheet
- Small Business Economic Impact Analysis
- Response to comments
Permit reissuance
We invited comments on the draft Industrial Stormwater General Permit permit documents from May 15 to July 15, 2024. We will publish a Response to Comments as an appendix to the fact sheet to address comments submitted during the public comment period.
Draft permit documents
- Draft Industrial Stormwater General Permit
- Current Redline for Draft Permit
- Fact Sheet
- Small Business Economic Impact Analysis
- State Register Notice
Comment Period
We accepted comments online, by mail, and during our public hearings from May 15 to July 15, 2024. You can view comments we recieved on our online comment form.
Workshops and hearings
During the workshops on June 20th and 24th, we explained the proposed changes to the permit and answered questions. The hearings began immediately following the public workshops.
View the workshop presentation. (PDF)
Timeline
Spring 2024: Formal public comment period on the draft permit
Winter 2024: Decision on permit issuance
Current applications and forms and historic permit documents
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