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Live Oak reviewed the San Joaquin County Environmental Health Department's <br /> Water Well Data Table dated March 10, 2009 for nearby addresses that have <br /> been tested for nitrate and dibromochloropropane (DBCP). A total of 22 <br /> sampling events were identified at wells within three-quarters of a mile of the <br /> Site. Of these, 14 events included sampling for DBCP; it was detected in 11 of <br /> the events at concentrations ranging from 0.12 to 6.7 Ltg/L. A total of 11 <br /> sampling events included nitrate; it was detected in 10 of the events at <br /> concentrations ranging from 2.6 to 56.0 mg/L. The Maximum Contaminant Level <br /> (MCL) set by the US EPA for nitrate as NO3 is 45 ppm. The MCL for DBCP is <br /> 0.2 Etg/L. Based on the data consulted, it appears that much of the ground water <br /> in the vicinity of the Site contains DBCP in excess of the MCL. The data indicate <br /> that nitrate is present in the area, but is encountered for the most part at levels <br /> below the MCL. <br /> 7.3. Agricultural Commissioner's Records <br /> The San Joaquin County Agricultural Commissioner's Office was contacted <br /> regarding agricultural use of the site. According to Hiromi Hernandez of that <br /> office, no chemical use records were identified for the Site (personal <br /> communication, September 26, 2014). <br /> 7.4 Department of Oil, Gas, and Geothermal Resources Maps <br /> The California Department of Oil, Gas, and Geothermal Resources (DOGGR) <br /> Online Mapping System (DOMS) was queried on September 30, 2014 for <br /> mapped oil or gas wells within one-quarter mile of the subject Site. No wells <br /> were identified within the search area. <br /> 7.5 National Pipeline Mapping System Database <br /> Live Oak reviewed the National Pipeline Mapping System (NPMS) database on <br /> September 30, 2014 for evidence of hazardous materials pipelines within one- <br /> quarter mile of the Site. A hazardous liquid pipeline was identified running along <br /> the railroad tracks approximately one-quarter mile west of the Site. According to <br /> NPMS, the pipeline contains "multi-products," is in service, and is operated by <br /> SFPP. A natural gas transmission pipeline operated by Pacific Gas & Electric <br /> Company is located approximately three-quarters of a mile north of the Site. <br /> Local pipelines which are not mapped by the NPMS may be present. <br /> LOGE 1416 7 <br />