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xgw <br /> _ NEQU _ <br /> SOIL CONTAMINATION ASSESSMENT <br /> Lockeford Mini dart <br /> NGA Project No. 10-90-104 <br /> Page 4 <br /> 3.2 @oil Analytical Results <br /> Soil samples were submitted to a California-certified laboratory <br /> and analyzed for those parameters listed in Section 1.2. <br /> _ Petroleum constituent concentrations in soil samples range from <br /> Not Found (all constituents in various samples) to a high of 2.1 <br /> parts per million (ppm) xylenes in sample T3N. TPH concentrations <br /> range from Not Found (samples T2N, T2S, T4N, T4S, LS-2, and LS-4) <br /> to a high of 390 ppm in sample T3N. TPH concentrations in the <br /> remaining samples were less than 20 ppm. Total lead was not <br /> detected in any of the soil samples analyzed. A summary of the <br /> soil analytical results is presented in Table 2.. <br /> Table 2 <br /> Soil Analytical Results <br /> Sample Ethyl- Total <br /> ID Benzene Toluene Benzene Xylenes EDC EDS TPH Lead <br /> T1N 0.019 0.026 0.008 0.24 NF NF 6.5 NA <br /> ,T1S 0.022 0.042 0.026 0.58 NF NF 15.0 NA <br /> T2N NF NF NF NF NF NF NF NA <br /> T2S NF NF NF NF NF NF NF NA <br /> T3N 0.008 0.15 0.012 2.1 NF NF 390.0 <0.1 <br /> T3S. 0.003 0.004 NF 0.003 NF NF 2.9 <0.1 <br /> F NF NF NF NF <0.1 <br /> T4N NF NF N <br /> F NF NF NF NF <0.1 <br /> T4S NF NF N <br /> LS-1 0.007 0.085 0.040 0.39 NF NF 7.2 <0.1 <br /> i LS-1(dup.) 0.004 0.054 0.027 0.25 NF NF 5.1 NA <br /> LS-2 NFNF NF NF NF NF NF <0.1 <br /> LS-3 NF NF NF 0.005 NF NF 0.1 <0.1 <br /> LS-4 NF NF NF NF NF NF NF <0.1 <br /> NOTES: all values in parts per million (ppm) <br /> NF = Not Found <br /> NA = Not Analyzed <br /> TPH = Tonal Purgeable Petroleum Hydrocarbons <br /> EDC = 1,2-Dichloroethane <br /> EDB = Ethylene Dibromide <br />