UNDERGROUND STORAGE TANKS (USTs)
Do you work on tanks (a Service Provider) or are you looking for someone to service your tanks?
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
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"
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