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Underground Storage Tank Decommissioning and Change in Service

Notification requirements summary

  • Step 1: UST Decommissioning/Change-in-Service 30-day Notice Form must be submitted to your local DEQ regional office a minimum of 30 days before starting any decommissioning work.
  • Step 2: Telephone Notification Before Starting Decommissioning Work
    Must call your local DEQ regional office 3 days before starting any decommissioning work.
  • Step 3: UST Decommissioning Checklist and Site Assessment Report
    Must be submitted to your local DEQ regional office within 30 days after completion of the decommissioning or change-in-service.
Note: Decommissioning is not complete until forms are received at your local DEQ regional office.
The tank status will remain active and the annual UST permit fee must be paid until both forms are received.
Submit both forms to your DEQ regional office.