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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 June 5, 2015 for mapped oil or <br /> gas wells within one-quarter mile of the subject Site. No wells were identified <br /> 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 /> June 5, 2015 for evidence of hazardous materials pipelines within one-quarter <br /> mile of the Site. No pipelines were identified within the search area. Local <br /> pipelines which are not mapped by the NPMS may be present. <br /> 8.0 IDENTIFIED CONTAMINATION SOURCES <br /> The following sources of past, current, on-site, and off-site contamination have <br /> been identified as a result of this investigation: <br /> Identified Contamination Source Evaluation <br /> 1. The Site has been used for As with any agricultural property, <br /> agriculture since 1937 or earlier. agricultural chemical residues may <br /> Agricultural chemicals continue to be present in Site soils. The San <br /> be applied to the Site. (Current Joaquin County Agricultural <br /> and past on-site) Commissioner's office regulates <br /> chemical application. <br /> 2. Based on aerial photographs For any structure dating from the <br /> reviewed, the house at 12385 Jack 1980s or earlier, the assumption is <br /> Tone Road was constructed prior made that pesticide residues may <br /> to 1952; the garage to the be present in soil around the <br /> southwest of the house was likely structure. These materials should <br /> constructed around the same time. be addressed in accordance with all <br /> (Current and past on-site) applicable regulations. <br /> 3. ' Three domesticells and,/two Based on review of a 1981 well <br /> irrigation wells are located on the permit, it appears that both wells at <br /> Site. One septic system serves 12385 Jack Tone Road are for <br /> each house. (Current on-site) domestic use. The status of the two <br /> wells is unclear at this time. The <br /> remaining three wells and two septic <br /> systems on the Site appear to be in <br /> use. <br /> LOGE 1512 7 <br />