Note: This message is displayed if (1) your browser is not standards-compliant or (2) you have you disabled CSS. Read our Policies for more information.
An Underground Storage Tank (UST) is a tank or combination of tanks which hold regulated substances and have at least ten percent of their volume underground, including underground piping connected to the tank. USTs that contain petroleum or hazardous substances are regulated by IDEM. Hazardous substances are those substances defined as hazardous in the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Section 101(14) [PDF].
However, the following UST systems are not regulated under the IDEM UST program (for a complete definition and list refer to the Indiana Code under IC 13-11-2-245):
All UST systems must be registered with IDEM. Tank fees are $90 per year for each regulated petroleum tank and $245 per year for each hazardous substance tank. Owners whose tank fees exceed $500 may make (4) four equal installment payments. For payment processing questions, the Indiana Department of Revenue should be contacted at (317) 615-2630.
For questions regarding why a tank fee was assessed, the IDEM OLQ UST Branch should be contacted at (800) 451-6027 ext.4-0343. For closures, notification must be given at least 30 days before activity begins. IDEM will then respond in writing with the closure approval date (closure approval letter will expire 90 days after date given). IDEM's OLQ UST Branch must be notified, by phone (317) 234-6645, at least 14 days in advance of the intended closure date. At least 14 days notice must also be given to both the Department of Fire and Building Safety and local fire department prior to the closure date. For change-in-service, only IDEM needs to be notified.
The owner/operator of an UST system must complete and submit a Notification for Underground Storage Tanks form (available on the IDEM Forms page), within 30 days whenever an UST system has been brought into service, acquired by a new owner, upgraded, repaired, temporarily closed, undergoes a change-in-service, or is permanently closed. This notification includes information on the tank's ownership, size, type, location, age, uses, construction, installation, external and internal protection, piping, and release detection methods. Additionally, any person who sells a tank intended to be used as an UST must notify the purchaser of these notification obligations.
Notification forms should be sent to:
IDEM Office of Land Quality, UST Program
100 N. Senate Avenue
MC 66-30 IGCN 1101
Indianapolis, IN 46204-2251
Phone: (317) 234-4112
Fax: (317) 234-0428
Indiana's laws and rules regarding underground storage tank systems may be found in the Indiana Administrative Code under 329 IAC 9 [PDF] and the Indiana Code 13-23-5-1. Also see UST Notification, Reporting, & Closure Requirements.
Every UST system in use and every new underground storage tank (UST) system to be put in use has to have proper design and construction to prevent corrosion, have spill and overfill protection, and have a leak detection system as specified in 329 IAC 9-2-1 [PDF] (Scroll to approximately page 18, "New UST systems") and for new and replaced piping, IC 13-23-5-1(a)(4).
The owner/operator of an UST system must complete and submit a Notification for Underground Storage Tanks form (available on the IDEM Forms page) requesting closure 30 days prior to an UST system permanent closure (removal or in-place), or change-in-service. Soil sample boring results must also be submitted prior to a permanent closure or change-in-service being completed. Permanent closure (removal or in-place) requires written approval from both IDEM and the Indiana Department of Fire and Building Safety (DFBS). For a change-in-service written approval is required only from IDEM.
In addition to the 30 day notice for permanent closure, it is required that the IDEM OLQ UST Branch be given at least 14 days prior notice (by phone) of the intended closure date at (317) 234-6645. The DFBS and the local fire department must also be notified at least 14 days prior to closure.
Within 30 days after an UST system permanent closure, a Notification for Underground Storage Tanks form and UST system closure report must be submitted together (if not, they will be returned to the owner/operator).
If a permanent closure is determined necessary due to a release or leak from an UST system, then a waiver of the 30-day advance notification period may be granted. See UST System Waiver, below. Providing all application requirements are met, IDEM sends out a closure approval Letter in response to the tank closure request. The letter gives authorization for the owner to remove (close) USTs. This authorization must be kept on site during the closure process and be made available upon demand to fire departments, health departments, etc.
If a permanent closure is determined necessary due to a release or leak from an UST system, then a waiver of the 30 day advance notification period may be granted. All UST systems must be registered with IDEM prior to waiver approval. An IDEM spill/incident number is also required prior to obtaining a waiver. Contact IDEM at (317) 234-6645 to obtain a spill/incident number. The DFBS and local fire department must be notified prior to closure. Other closure notification requirements must still be followed during and after closure.
Under the Indiana Code (IC 13-23-3), the Indiana Department of Fire and Building Services (formerly named the Office of the State Fire Marshall), must certify all persons who install, upgrade and decommission underground storage tanks.
For information on becoming certified to perform such work, please contact the Indiana Department of Fire and Building Services (DFBS) at (317) 232-1407. Owners/operators of UST systems must use DFBS-certified persons to oversee any tank system installations, testing, upgrading, closures, removals, and change-in-service. In addition, the Notification for Underground Storage Tanks form (available on the IDEM Forms page) submitted to IDEM for tank installations, upgrades, testing, or permanent closures must be signed by a DFBS-certified worker or contractor, who must also provide his or her DFBS certification number.
Visit IDEM’s Underground Storage Tanks Web site. Contact IDEM staff at (317) 233-1512.