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Toxics Cleanup Program



Do you work on tanks (a Service Provider) or are you looking for someone to service your tanks?

Checklists for Certified Service Providers: Looking for a Service Provider?

Are you interested in becoming certified for tank installation & retrofitting, tank decommissioning, tightness testing, cathodic protection installation & testing, or site assessment associated with tank closures?  Please click on the following links for more information.

All forms, checklists and reports must be submitted to:

Department of Ecology
Underground Storage Tank Section
P.O. Box 47655
Olympia, WA 98504-7655

Check with your local city and county authorities to determine if there are additional requirements associated with your UST System(s).

1For tanks storing >B20 (20% biodiesel) or >E10 (10% ethanol-blended) fuels
2Formerly "Closure & Site Assessment Notice"
3Formerly "Tightness Testing Checklist" and “Release Detection and Prevention Equipment Testing Checklist"