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5-feet of auger Table 2 summarizes the vertical and horizontal position of soil samples with <br /> respect to the ground level and building wall, respectively. The boring log for SB01 is shown <br /> in Appendix B <br />' The HNU-PID field screening results, and analytical results for each soil sampling <br /> interval of Boring SB01 are summarized in Table 1 Hard copies of the analytical data are <br /> presented in Appendix C. No benzene was detected in the soil samples from the boring. <br /> Toluene was detected in all of the samples analyzed and ranged from 7 to 41 pg/kg, with the <br />' greatest concentration detected in the 20-foot sample. Diesel-range hydrocarbons were <br /> detected in the 5- , 20- and 25-foot samples at concentrations of 2, 170 and 10 mg/kg, <br /> respectively. Kerosene-range hydrocarbons were detected in the 20- through 30-foot samples <br /> at concentrations of 840, 24, and 9 mglkg, respectively. Motor oil-range hydrocarbons were <br /> only detected in the 5-foot sample at a concentration of 8 mg/kg, which is only slightly above <br />' the 5 mg/kg reporting limit Total xylenes were detected in the 20-foot sample at a <br /> concentration of 11 pg/kg <br /> 3.1.3 Monitor Well Boring (MW-5) <br /> IP <br /> The vertical boring for groundwater momtonng well MW-5 was dniled near the <br />' northeast corner of the Tank #4 excavation area (Figure 2) The bong was drilled to a total <br /> depth of 80 feet bgs and was sampled approximately every 5 feet for lithology The boring log <br /> for MW-5 is shown in Appendix B. Soil sampling of Boring MW-5 was not required but a <br /> sample was collected at 20 feet bgs because of elevated PID readings (10 ppm). Analysis of <br />' the sample resulted in detections of diesel (54 mg/kg), kerosene (160 mg/kg), and toluene <br /> (14.0 ILg/kg) No benzene was detected Hard copies of the laboratory results for this sample <br />' are presented in Appendix C. <br />' 3.1.4 Analysis of Total Organic Carbon (TOC) On Select Soil Samples <br /> Under the direction of the San Joaquin County, Division of Environmental Health, <br /> eight of the 17 soil samples were selected to be analyzed for TOC using EPA Method 9060 <br /> These soil samples were split from the original 17 samples submitted to AEN. The soil <br /> samples were selected for this analysis to include a range of soil types and of petroleum <br /> rft"u0nicey"Vesupt 6 <br />