Washington State Department of Ecology


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Industrial Facilities (6 publications 2025-2026)


7
Title (link to summary)NumberDate (released or updated)
State Waste Discharge Permit Application - Industrial to Ground ECY 040-179March 2026
State Waste Discharge Permit Application - Industrial to POTW ECY 040-177March 2026
Industrial Stormwater General Permit Discharge/Sample Point Update ECY 070-373February 2025
Modification of Permit Coverage Form for Industrial Stormwater General Permit ECY 070-361February 2025
Transfer Ownership of Stormwater General Permit for Industrial Facilities ECY 020-84aFebruary 2025
Industrial Stormwater General Permit Application Form (Notice of Intent) ECY 020-84February 2025

 

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