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The Site was not labeled as a hazardous materials handler, but four facilities within one-quarter mile were identified: • LGS Well Pad 4/Well Pad 5, 8611 E. Jahant, discussed above. • LGS Separator Site, 8588 E. Jahant, discussed above. • Jim Saco, Jr., 23031 N. Bruella, discussed above. • LGS Well Pad 6, 2300 N. Bruella, discussed above. Live Oak reviewed the San Joaquin County Environmental Health Department's maps of Nitrate — Land Use Data and DBCP — Land Use Data dated February 20, 2019. According to the nitrate map (Plate 5), 18 wells within a one -mile radius of the subject Site have been tested; nitrate was detected in 16 of the wells at concentrations between 0.1 and 5.0 mg/L-N, and in two of the wells at concentrations between 5.1 and 10.0 mg/L-N. A total of 17 wells within a one - mile radius of the Site were tested for DBCP (Plate 6); DBCP was detected in four of the wells at concentrations between 0.01 and 0.2 µg/L, in three of the wells at concentrations over 0.2 ug/L, and was not detected in the other 10 wells. The Maximum Contaminant Level (MCL) set by the US EPA for nitrate is 10 mg/L-N; the MCL for DBCP is 0.2 [g/L. 7.3 Aaricultural Commissioner's Records Live Oak contacted the San Joaquin County Agricultural Commissioner's Office regarding agricultural use of the site. According to Hiromi Hernandez of that office, the Site has been farmed with oats for fodder by Daryl Connor in the recent past (correspondence, October 1, 2021). No agricultural chemical use reports were identified (Appendix 5). 7.4 California Geologic Energy Management Division Records The California Geologic Energy Management Division (CaIGEM) Well Finder website was queried on October 15, 2021 for mapped oil or gas wells within one- quarter mile of the subject Site. No wells were identified on the subject Site. The following 13 wells were identified within one-quarter mile of the Site (Plate 7): • Lodi Gas Storage, LLC "LGU WD" 1 (API 0407720640), an active, water disposal well, one-quarter mile west of the Site. • Lodi Gas Storage, LLC "LGU WD" 2 (API 0407720656), an active, water disposal well, one-quarter mile west of the Site. • Lodi Gas Storage, LLC "LGU WD" 0-3 (API 0407720634), an active, observation well, one-quarter mile west of the Site. • Lodi Gas Storage, LLC "Loma" D-513 (API 0407720675), an active, gas storage well, less than one-quarter mile northwest of the Site. • Lodi Gas Storage, LLC "Loma" D-5 (API 0407720621), an active, gas storage well, less than one-quarter mile northwest of the Site. LOGE 2152 7