UST / LUST General Information

There are over 7,000 registered underground petroleum and hazardous substance storage tanks located at approximately 2,700 facilities in the State of Iowa. The Iowa Department of Natural Resources Underground Storage Tank (UST) program is responsible for protecting public health and the environment, in particular groundwater, by preventing petroleum and hazardous substance discharges to the greatest extent possible. The staff provides technical expertise, training, and outreach to underground storage facility owners and operators.

For more information on  EPA’s Final Revisions (along with Rule Summary, History and Additional Resources), visit the Federal UST Regulations 

The EPA’s Office of Underground Storage Tanks (OUST) has just released two new documents associated with the recently revised UST regulations. Both of these documents are being made electronically available in PDF and WORD formats.

The first, MUSTs for USTs, has been recently updated. This document provides a broad understanding of the recent changes made to the UST regulations as well as some helpful tips to ensure compliance with these requirements.

The second, UST System Compatibility With Biofuels provides a detailed overview explaining the 2015 compatibility requirements. Ensuring UST systems are compatible with the substances they store is a key element to preventing releases to the environment.

Leaking Underground Storage Tanks (LUST)

Reporting Releases - Iowa law requires owners and operators of Underground Storage Tank (UST) systems to report a confirmed or suspected release of "regulated substances," which includes petroleum, to the Department of Natural Resources (DNR) within 24 hours or within 6 hours if a hazardous condition exists [567 Iowa Administrative Code (IAC)—135.6 & Iowa Code section 455B.386]. 

Environmental Emergency Reporting Hotline Number is 515-725-8694.

LUST Forms

Additional Resources
+ Cathodic Protection System
+ Chemical Fact Sheets
+ Ethanol