Underground Storage Tank (UST) Program
Tank Site Improvement Program
ADEQ's new Underground Storage Tank Site Improvement Program (TSI) provides financial assistance to Underground Storage Tank (UST) owners, operators and property owners of sites with USTs for specific tank site improvements that help prevent future costly remedial activities.
Reimbursement Funding Is Available Up to $100,0001 per Facility and Includes:
- Up to $100,000 per site for UST system upgrades | Download Application >
- Up to $30,000 per event for baseline assessments | Download Application >
- Up to $20,000 per tank for UST removal | Download Application >
- Up to $10,000 per event for suspected release confirmation | Download
Application >
Learn more about site improvements eligible for reimbursement and help prevent future costly cleanups | Learn More >
Application Information
Applicants are responsible for submitting an application for ADEQ approval, acquiring bids, managing and funding contracted work and submitting costs for reimbursement. Once an application is approved by ADEQ, applicants should complete the ADEQ-preapproved work and request reimbursement as soon as possible and no later than one year.2
Now Accepting Applications! | Steps to Apply >
Questions?
View the most frequently asked questions about the TSI Program | View TSI Program FAQs >
If you need additional information, contact the UST Outreach Coordinator (see sidebar).
1Work must be preapproved through the application process to be eligible for reimbursement, any costs above the designated amounts will not be eligible for reimbursement.
2In accordance with Arizona Revised Statutes (ARS) § 49-1071, TSI application approvals are subject to the availability of monies in the UST revolving fund that have been allocated to the program.