The Leaking Underground Storage Tank (LUST) program is specific to unauthorized releases associated with petroleum underground storage tank systems.

The Alameda County Health, Environmental Health Department (ACEHD) oversees the investigation and cleanup of fuel releases from petroleum underground storage tanks (USTs) in unincorporated Alameda County, Alameda, Albany, Castro Valley, Dublin, Emeryville, Livermore, Oakland, Piedmont, Pleasanton, San Lorenzo, and Sunol under the Local Oversight Program (LOP) contract with the State Water Board (SWB). In certain circumstances, ACEHD does oversee cases in Berkeley, Hayward, Fremont, Newark, San Leandro, and Union City with Regional Water Quality Control Board concurrence. Sites are entered into the LOP when a release from a UST is reported and confirmed. This typically occurs when a UST is removed and signs of a release are either obvious or confirmed in soil and/or groundwater sample analytical results. Releases are also reported when contamination is found while repairing fuel delivery systems associated with petroleum USTs or when environmental site assessments are completed at the time of property transactions.