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disposal sites. The database can be searched by reviewing two lists, the Permitted Underground Storage Tank (UST) Sites list and the Cleanup Sites list. DTSC's EnviroStor database includes Federal Superfund sites, State response sites, voluntary cleanup sites, school cleanup sites, corrective action sites, and permitted hazardous waste facilities. Live Oak searched both databases on July 6, 2022 for the Site and any listed sites within one-quarter mile of the Site. The subject Site was listed on the GeoTracker Cleanup Sites database. According to the listing, On 30 April 2015 an 8,000 gallon aboveground storage tank (AST) ruptured during filling operations resulting in catastrophic failure and the release of approximately 7,000 gallons of diesel fuel. The diesel flowed into the orchard to the south of the property and down the driveway towards Frederick Road. A removal action was initiated by the property owner within days under oversight of the Central Valley Regional Water Quality Control Board. Impacted soil was moved onto a lined land farm area immediately south of the property for eventual remediation. According to documentation available from GeoTracker, the impacted soil in the spill area was excavated to 4.5 to 12 feet below ground surface (bgs). Confirmation sampling and a photo -ionization detector were utilized to determine the extent of impacted soil. A cemented hardpan was encountered at 12 feet bgs. The excavations were backfilled with clean soil. Samples were collected from the two onsite domestic wells; no TPH-d (total petroleum hydrocarbons as diesel) was detected in the samples. Approximately 1,500 cubic yards of excavated soil were placed on plastic sheeting between two orchard rows. In 2018, the soil stockpile was sampled; no BTEX constituents were detected, and TPH-d was detected at concentrations between 14 and 61 mg/kg. The Central Valley Regional Water Quality Control Board issued a "no further action" letter for the diesel spill in September 2019; the attached documentation indicated that "the stockpile has been adequately treated to be reused as road base at the Site" (Appendix 5). No additional listed facilities were identified within one-quarter mile. 7.2 Environmental Health Department Databases Live Oak reviewed the San Joaquin County Environmental Health Department's Site Mitigation, LOP, Hazardous Materials, Hazardous Waste Generators, Underground Storage Tanks, Aboveground Storage Tanks, and Complaints databases, dated February 2022, for facilities of concern within one-quarter mile of the Site. LOGE 2232 8