Hawaii UST Directory

Hawaii faces significant environmental considerations related to underground storage tanks (USTs). According to data sourced from the EPA UST Finder program, the state has 2,643 registered UST facilities. A substantial concern is the presence of 1,395 documented leaking underground storage tank (LUST) release sites, with 77 of these currently classified as "Open" and still requiring cleanup. The state manages 1,346 active underground storage tanks, alongside 5,355 closed tanks, highlighting the ongoing and historical scope of UST management.

The impact of USTs is geographically widespread across the islands. Key urban centers show higher concentrations of facilities and releases, such as Honolulu with 925 facilities and 561 releases, Hilo with 186 facilities and 85 releases, Kahului with 107 facilities and 59 releases, Lihue with 89 facilities and 39 releases, and Waipahu with 82 facilities and 46 releases. This underscores the critical importance of robust UST monitoring, diligent environmental due diligence, and proactive groundwater protection efforts to safeguard Hawaii's natural resources from potential contamination.