Underground Storage Tank (UST) Program

Underground storage tank system illustration

UST Preapproval Program

What is the Preapproval Program?

If you have a facility with contamination from a leaking UST, you may qualify for financial assistance from ADEQ. Under the Preapproval Program, ADEQ works closely with UST owners and  operators (applicants) to develop a cleanup plan. ADEQ also works closely with customers during the application process, focusing on identifying specific tasks of required work and developing schedules and budgets for that work.

Are You Eligible?

This program focuses on providing assistance to UST owners and operators who can demonstrate compliance with financial responsibility requirements. Reimbursement is limited to costs that are not being covered by the applicable financial assurance mechanism. Upon the request of the applicant, ADEQ will provide assistance in pursuit of coverage from their source of financial assurance.

To determine if you qualify, you may request an eligibility consultation by email. Please include your name and relationship to the facility, the ADEQ-assigned facility ID number, and Leaking UST number(s) | Email Request for Consultation >

Please refer to Arizona Revised Statutes (ARS) § 49-1006.02 (A, B and C) to review eligibility requirements | View >

How to Receive Reimbursement

All work and costs must be preapproved by ADEQ. Depending on your financial assurance mechanism, certain applicants will be required to meet a $50,000 cost share obligation for work conducted on or after Jan. 1, 2016.1

Learn all steps involved in participating in the Preapproval Program Preapproval Program Process >

If contamination is discovered that represents an imminent threat to human health and the environment, UST owners and operators may qualify for the expedited Preapproval process | Expedited Preapproval Process >