Industrial Stormwater General Permit

Several parties appealed the general permit. The parties agreed to consolidate the six appeals into one. Five of the original cases are now closed as a result of the consolidation. 

The appeals relate to the legal and technical basis of the permit, general stringency, and permit requirements and deadlines. The general permit is still in full effect. Ecology will continue to support permittees as they implement the permit.

We will post more information and any decisions made by the Pollution Control Hearings Board (PCHB) on this page. You can visit the Pollution Control Hearings Board and use the Case Search Tool  (Search term: 24-088c) for up to date appeal information. The Notice of Appeal document is available via a public records request.

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.

• Modification of Coverage
• Transfer of Coverage
• Update Discharge/Sample Point(s)
• Notice of Termination

• Request for Chemical Treatment
• Electronic Reporting Waiver

• Updated Stormwater Pollution Prevention Plan (SWPPP) template 
• Find a lab
• Stormwater guidance
• Vehicle recyclers guide
• Log Yard Implementation Manual
• Vehicle and Equipment Washwater Disharges BMP Manual
• Stormwater Sampling Manual: A guide for the Industrial Stormwater General Permit

• Discharge Monitoring Reports (DMR) and WQWebPortal help
• Water Quality permitting database (PARIS)

2020 permit (Jan. 1, 2020 - Dec. 31, 2024)

• 2020 Industrial Stormwater General Permit (expired Dec. 31, 2024)
  • 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 (May 1, 2019)
  • Appendix D: Response to comments
• Small Business Economic Impact Analysis (May 2019)

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

• 2015 Industrial Stormwater General 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 (May 7, 2014)
  • Appendix D: Response to public comments on the draft permit (Dec. 3, 2014)
• Economic Impact Analysis (May 2014)
• Frequently Asked Questions (FAQs)

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

• 2010 Indstrial Stormwater General Permit with 2012 modification (expired Jan. 1, 2015)
• Fact sheet (June 3, 2009)
  • Appendix C: Response to public comments (October 21, 2009)
  • Appendix E: Response to public comments on the draft permit modification (May 16, 2012)