Industrial Stormwater General Permit

Stormwater can pick up pollution from factories and businesses. Those contaminants are carried into waterways and harm fish and other aquatic life. The National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge permit helps industrial facilities comply with federal and state regulations that reduce pollution. We require most industrial sites in Washington to monitor, measure, and reduce stormwater pollution leaving their site. We use the federal Clean Water Act and state law (RCW 90.48.080) to regulate stormwater at industrial facilities.

The permit went into effect on Jan. 1, 2025 and expires Dec. 31, 2029.

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Current permit documents

railroad tracks with stacks of both covered and uncovered wooden boards — Transportation facility

Public involvement during permit reissuance

We invited comments on the draft Industrial Stormwater General Permit documents from May 15 to July 15, 2024. We conducted two public workshops followed by public hearings on June 20 and 24, 2024. Appendix C of the fact sheet shows our response to comments or you can view the comments in our online database.

Current applications, forms, and historic documents

To apply for coverage:

Fill out the online application (Notice of Intent)
Conditional No Exposure — Eligible if there is “no exposure” of industrial materials and activities to rain, snow, snow melt, and/or runoff. Reapply for this status every five years. Apply through SecureAccess Washington (SAW).

We have transitioned to a modern work environment. To expedite application processing, after you apply online 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.

Contact information

Permit Administrator

Your Permit Administrator is determined by the county of the permit project.

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

Permit Writer

Shannon McClellan
ISGP Permit Writer
360-280-8370
Shannon.McClellan@ecy.wa.gov

CNE and Enforcement Coordinator

Clay Keown
General Permit Compliance Specialist
360-480-3353
clay.keown@ecy.wa.gov