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One Time Drop Letter for Tank and Line Tightness Testing

Before a tank can receive a Certificate of Compliance, the integrity of the tank and associated piping must be evaluated through a tank and line tightness test. To receive fuel for the test, the owner or installer must contact the DERR for authorization of a one-time delivery (One Time Drop Letter).

Information to submit to request a One Time Drop Letter:

  • Facility and owner name, facility I.D. or facility address, and phone number
  • Date(s) delivery of fuel is needed
  • Name of company delivering fuel and contact person
  • Fax number of delivery company

Request can be made by fax (801) 359-8853 or phone (801) 536-4100 or Emailed to the appropriate UST Inspector (Who to Contact).

DERR/UST must have 24 hour notice prior to the date the delivery is needed. Our office hours are 7 a.m. to 6.p.m. Monday thru Thursday (closed holidays). A One Time Drop Letter request received Thursday afternoon may not be approved until Monday. Requests can be made via Email 24-7 (Who to Contact).

After the initial drop, the tanks may not receive subsequent deliveries of fuel until they are issued a Certificate of Compliance and are marked with a proper identification tag at the fill pipe. The owner of the facility and the delivery company will be subject to a $500 fine for each delivery made to an UST without a Certificate of Compliance (other than the One Time Drop).

If you have questions, please contact the DERR UST Section at (801) 536-4100.