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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 February 2, 2015 for any listed sites within one-quarter mile of the Site. The subject Site was not listed on either database, and no facilities were identified within one-quarter mile of the Site. 7.2 Hazardous Substance Storage Container Database From research conducted for a previous investigation in the area, Live Oak was aware that Aberle Acres, 19750 N. Lower Sacramento Rd. (the subject Site address) is listed on the Hazardous Substance Storage Container (HIST UST) database maintained by the State Water Resources Control Board. The listing indicates that a 1,000-gallon regular gasoline tank was installed in 1979, and a 1,000 gallon unleaded gasoline tank was installed in 1980. A second listing, Wildcrest Farm, 2101 E. Woodbridge Rd., may also refer to the subject Site or the adjacent parcel now carved from the Site,- according to the listing, Wildcrest Farms had a 1,000 gallon unleaded gasoline tank (installed in 1980). Live Oak contacted the State Water Resources Control Board for more information on the listings for Aberle Acres and Wildcrest Farm. Vivian Gomez- Latino of that agency was able to locate records for Aberle Acres only. The records describe the container types as single-walled tanks. Nowhere on the records are the tanks described as "underground," though for the category of "underground piping," the entry "suction" has been made. Ms. Gomez-Latino could not provide additional information on the specific records or on the HIST UST database, beyond that it covered a relatively short time period from the late 1980s through early 1990s and has not been updated (personal communication, March 3, 2015). She referred Live Oak to Ben Henningsberg of the State Water Resources Control Board's UST Division. Mr. Henningsberg could not access the specific records but stated that, since Aberle Acres is not listed as a UST site on GeoTracker, he would assume that the former tank was not underground (personal communication, March 3, 2015). LOGE 1504 6