Idaho UST Directory

Idaho has 5,275 registered underground storage tank (UST) facilities, with 1,513 documented leaking underground storage tank (LUST) release sites. Of these, 66 releases are currently classified as "Open," indicating ongoing cleanup efforts. The state manages 3,143 active USTs and 11,531 closed tanks. This data, sourced from the EPA UST Finder program, highlights the significant presence of these systems across the state.

The potential for environmental contamination from USTs, particularly to groundwater, underscores the critical importance of UST monitoring and environmental due diligence. Cities with high facility counts and documented releases, such as Boise (651 facilities, 300 releases), Idaho Falls (331 facilities, 34 releases), Pocatello (230 facilities, 52 releases), Twin Falls (229 facilities, 65 releases), and Nampa (167 facilities, 75 releases), demonstrate the localized impact of these systems. Vigilant oversight is essential to prevent new releases, address existing contamination, and protect Idaho's valuable natural resources.