Leaking Underground Storage Tanks on Record
Data current as of June 2026 — recomputed by ZipCheckup from federal data each build.
Per ZipCheckup's reading of the EPA Underground Storage Tank program, 43,801 tanks are recorded as actively leaking with open cases, as of June 2026.
EPA records show 43,801 underground storage tanks with open leaking-tank cases across the United States.
Open data, licensed CC BY 4.0 · DOI: 10.5281/zenodo.19427201
How we compute this
We read leaking-underground-storage-tank (LUST) counts from the EPA Underground Storage Tank program’s state-level reporting and report the national total of open cases. The figure recomputes whenever the underlying extract is refreshed.
An open LUST case is a regulatory and cleanup status, not a measure of present-day exposure at any address. Cases close as remediation completes, so the count reflects active cleanup work in progress.
We translate EPA’s records rather than estimate them. Proximity context is drawn from EPA EJScreen percentiles, which measure relative distance to the nearest site, not a contamination reading.
Frequently asked questions
How many underground storage tanks are leaking in the U.S.?
Per ZipCheckup's reading of the EPA Underground Storage Tank program, 43,801 tanks have open leaking-tank cases nationally, as of June 2026. An open case is an active cleanup status, not a present-day exposure reading. according to ZipCheckup's reading of federal data as of June 2026.