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UST Forms and Lists
Forms
Registration of UST Facilities (PDF) Revised January 2019. See also:
- UST Facility Upgrade Registration (PDF) (UST Facility Upgrade Registration, MS Word) Revised March 2014.
- Variance Application for Facilities Located Over Sand and Gravel Aquifers (PDF)
- Double-walled Tank Warranty Extension Registration (PDF)
- Waste-Water Treatment Tank Registration (PDF) Revised March 2019
Notification of Temporarily Out-Of-Service Tank(s) (PDF) If you are taking your tank out-of-service, you must complete and submit this notification form to the Department.
Return to Service Request for Out-of-Service Tanks (PDF) If you are returning your tank to service, you must complete and submit this notification form to the Department.
Notice of Intent to Remove an Underground Oil Storage Facility (PDF)
Chapter 691 Summary Cover Sheet for Underground Oil Storage Facility Site Assessment (PDF)
Modified Site Assessment for Replacement of Flexible Primary Product Piping without Excavation (PDF)
Certification of Inerting or Purging of Removed Underground Gasoline Tank (PDF)
Change of Ownership (PDF) If you are a new owner of a UST facility, you must complete and submit this notification form to the Department within 10 days of the date of transfer.
Annual UST Inspection (.pdf) Annual UST inspection results must be submitted on this form. Inspection Form Instructions (.pdf)
Underground Piping Associated with AST Motor Fuel Tanks Annual Inspection Form (PDF) (Annual AST Inspection Form MS Excel) Revised November 2023
Sump Tightness Testing (PDF) (Sump Tightness Testing, MS Excel) - Use this form to document sump tightness testing for Triennial testing, double-walled tank warranty extensions (with the extension registration) and any other sump testing.
Weekly Facility Walk-Through Inspection Checklist (PDF)
Safe Suction Piping Validation (PDF)
Spill Log (PDF) Log sheet for spill less than 10 gallons that occur on concrete or pavement and are properly cleaned up.
GW Monitoring Well Log (PDF) Groundwater Monitoring Well Log - Used only for single-walled consumptive use heating oil tanks.
Lists
Active and Out of Service Underground Oil Storage Tanks (PDF) (updated monthly)
Compliance Dates for Federally Regulated Oil Storage Facilities (PDF) February 2025
Firms Accepting New Clients for Underground Annual Tank Inspections (PDF) Updated March 2026
Maine Certified Underground Storage Tank Installers and Inspectors (PDF) (updated monthly)
Non-Conforming Tanks Report (PDF) - Tanks that cannot have oil delivered to them.
Registered Underground Oil Storage Tanks (PDF) (updated monthly)
Tank Installation Date & Material (PDF) (updated monthly)