Industrial Stormwater General Permit

Coronavirus (COVID-19) status update

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

Current applications and forms, and historic permit documents

Previous permit (Jan. 2, 2015 - Dec. 31, 2019)

Previous permit (Expired Dec. 31, 2019)
- 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
Response to comments
Small Business Economic Impact Analysis
Frequently Asked Questions (FAQs)

Previous permit (Jan. 1, 2010 - Jan. 1, 2015)

Previous permit (Expired Jan. 1, 2015)
Fact sheet
Response to comments
- Addendum to the fact sheet: Response to comments

Contact information

For Permittees in the following cities and counties:

City of Seattle, Clallam, or Kitsap County

Stacey Britton
Permit Administrator
360-764-3727
stacey.britton@ecy.wa.gov

Adams, Whitman, Franklin, Walla Walla, Columbia, Garfield, Asotin, Okanogan, Chelan, Douglas, Kittitas, Yakima, Benton, or Klickitat County

Anna Duron
Permit Administrator
360-764-3960
anna.duron@ecy.wa.gov

Thurston County

Josh Klimek
Permit Administrator
360-870-6014
josh.klimek@ecy.wa.gov

Jefferson, Mason, Grays Harbor, Pacific, Wahkiakum, Lewis, Cowlitz, Skamania, or Clark County

Joyce Smith
Permit Administrator
360-407-6858
360-688-4514 (cell)
joyce.smith@ecy.wa.gov

Pierce, Skagit, or Whatcom County

Melinda Wilson
Permit Administrator
360-870-8290
melinda.wilson@ecy.wa.gov

King (except for Seattle), Ferry, Stevens, Pend Oreille, Lincoln, or Grant County

Kendra Henderson
Permit Administrator
360-870-6757
kendra.henderson@ecy.wa.gov

Snohomish, Island, San Juan, or Spokane County

Miya Spratt
Permit Administrator
360-870-7853
miya.spratt@ecy.wa.gov

DMR Enforcement Coordinator:

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