Underground Storage Tank (UST) Program
Tank Site Improvement Program
ADEQ's Underground Storage Tank Site Improvement Program (TSIP) 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 cleanup activities.
Site improvements eligible for reimbursement | Learn More >
Applicants are responsible for submitting an application for ADEQ approval,1 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 year2 | Steps to Apply >
Reimbursement Funding Is Available Up to $300,000 per Facility and Includes:
- Up to $200,000 per site for UST system replacement | Download Application >
- Up to $40,000 per event for baseline assessments | Download Application >
- Up to $25,000 per tank for UST removal and up to $15,000 per site for over-excavation of petroleum contamination, if required | Download Application >
- Up to $20,000 per event for suspected release confirmation sampling | Download Application >
Questions?
View the most frequently asked questions about TSIP | View TSIP FAQs >
If you need additional information, contact the UST Outreach Coordinator (see sidebar).
1Any costs incurred prior to the approval of the application are not eligible for reimbursement.
2In accordance with Arizona Revised Statutes (ARS) § 49-1071, TSIP application approvals are subject to the availability of monies in the UST revolving fund that have been allocated to the program.