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a•i <br /> f <br /> i <br /> Table 1. Soil Sample Analytical Results, ARCO Station 6080, Lathrop, California <br /> All concentrations report in milligrams per kilogram (parts per million) <br /> EPA Method EPA Method 8020 <br /> 8015 modified _ <br /> Sample p Total <br /> Borehole depth, petroleum Total <br /> Date number feet hydrocarbonsa Benzene Ethylbenzene Toluene Xylenes lead <br /> 424/87 AL-1 6.0-6.5 29 <0.01 NAb <0.01 <0.01 <0.01 <br /> AL-2 4.5-5.0 <10 <0.01 NA <0.01 <0.01 <0.01 <br /> AL-3 4.5-5.0 <10 <0.01 NA <0.01 <0.01 <0.01 <br /> AL-4 4.5-5.0 <10 <0.01 NA <0.01 <0.01 <0.01 ; <br /> AL-5 4.5-5.0 10 <0.01 NA <0.01 <0.01 <0.01 <br /> AL-6 5.0-5.5 <10 <0.01 NA <0.01 <0.01 <0.01 <br /> 4119/92 HP-1 4.5-5.0 <10 <0.005 <0.005 <0.005 <0.015 NA <br /> 6.0-6.5 <10 <0.005 <0.005 <0.005 <0.015 NA <br /> i <br /> HP-2 7.0-7.5 <10 <0.005 <0.005 <0.005 <0.015 NA <br /> 8.5-9.0 <10 <0.005 <0.005 <0.005 <0.015 NA <br /> aMeasured total petroleum hydrocarbons (TPH) in the C6 to C32 range (microextraction) for 1987 samples. Measured TPH <br /> in the diesel (C10 to C22) range (5030 extraction) for 1992 samples <br /> bNA =not analyzed <br /> M <br /> 666ncaRRESP4661-041A <br />