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• 5861 West Ripon was included on the Emergency Response database for a 2021 incident: 1-1.5 gallons of oily water and sludge spilled. Impact to soil." Based on the location and nature of the matter, this incident is considered unlikely to have impacted the subject Site. • 5788 E. West Ripon was included on the Emergency Response database for a 2013 incident: "approximately 2 gallons of diesel spilled from a piece of equipment at a pipeline." Based on the location and nature of the matter, this incident is considered unlikely to have impacted the subject Site. • Perrin Road west of Union Road was included on the Emergency Response database: "On 6/19/2017 at approximately 10:00 am tractor engine caught fire releasing fluids onto the soil. No waterways were impacted." Based on the location and nature of the matter, this incident is considered unlikely to have impacted the subject Site. Live Oak reviewed the San Joaquin County Environmental Health Department's maps of Nitrate - Land Use Data and DBCP - Land Use Data dated October 2021 . According to the nitrate map (Plate 6), 14 wells within a one-mile radius of the subject Site have been tested. Nitrate was detected in three of the wells at concentrations between 0.1 and 5.0 mg/L-N, in two wells at concentrations between 5.1 and 10.0 mg/L-N, and in nine wells at concentrations over 10 mg/L-N. Three wells within a one-mile radius of the Site were tested for DBCP (Plate 7); DBCP was detected between 0.01 and 0.2 µg/l_ in one of the wells; no DBCP was detected in the other two 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 µg/L. 7.3 Agricultural Commissioner's Records Live Oak contacted the San Joaquin County Agricultural Commissioner's Office regarding agricultural use of the site. According to Monica Hernandez of that office, the Site has been used by B&M Farms to grow corn and oats for fodder from 2020 through 2022 and by Van Groningen & Sons to grow watermelons and pumpkins from 2022 through 2023 (correspondence, July 25, 2023). A variety of agricultural chemicals have been applied to the property since 2020, as indicated on the attached tables (Appendix 5). No violations were identified. 7.4 California Geologic Energy Management Division Records The California Geologic Energy Management Division (CaIGEM) Well Finder website was queried on August 11, 2023 for mapped oil or gas wells within one- quarter mile of the subject Site (Plate 8). One well was identified on the subject Site: the Sherman F. Wagenseller "Great Basins-Reynolds" Unit 29-1 (API LOGE 2327 10