How Many UST Systems Have Leaked? How Many Have Been Cleaned Up?
States and territories have been submitting information about their UST programs since 1988. As of September 2014:
- 521,271 confirmed releases have been reported;
- 498,173 cleanups have been initiated; and
- 447,323 cleanups have been completed.
For state by state data (reported semi-annually), such as the number of active and closed tanks, releases reported, cleanups initiated and completed, inspections, and facilities in compliance with UST requirements see the UST Performance Measures.