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7.0 GOVERNMENT AGENCY RESEARCH 7.1 EPA Databases The California Environmental Protection Agency (EPA) manages contaminated sites through two sub -agencies: the State Water Resources Control Board (SWRCB) and the Department of Toxic Substances Control (DTSC). The SWRCB's GeoTracker database includes underground storage tank (UST) sites, leaking underground storage tank (LUST) sites, cleanup program sites, and land 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 March 15, 2022 for any listed sites within one-quarter mile of the Site. The subject Site was not listed on either database. One listed facility was identified within one-quarter mile: • Chevron Catellus, W. Byron Rd., located 800 feet east of the Site, GeoTracker Cleanup Sites list. According to GeoTracker, this case has been closed; although some contamination remains present. Owners of nearby properties that have been impacted by this facility, as well as those within 200 feet of the contamination, were notified in 2011. The subject Site is not listed among the affected properties. The inferred ground -water flow direction is depicted to the northeast, away from the subject Site. Further history of this Site is discussed below. 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. The Site address was not included on the databases. Three listed facilities were identified within the search radius: • T Mobile West, 16171 W. Grant Line, location unclear, Hazardous Materials database. Live Oak reviewed records on file at the San Joaquin County Environmental Health Department for this facility. An inspection report from 2005 showed a recordkeeping violation that was corrected on site. A second form showed that two chemicals were stored on-site in 2019. No other information was available. Based on the record reviewed, no evidence of an impact to the subject Site from this facility was identified. LOGE 2214 6