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Limited Environmenta' Investigation July 16, 1990 <br /> ARCO Service Station No. 6100,Tracy, California AGS 30041-1 <br /> TABLE 2 <br /> CONCENTRATIONS OF HYDROCARBONS IN SOIL SAMPLES <br /> ARCO Service Station No. 6100 <br /> 25775 Patterson Pass Road <br /> Tracy, California <br /> (Page 2 of 2) <br /> Sample Ethyl- Total Organic <br /> Number TPhg Benzene Toluene benzene Xylenes Lead <br /> S-15-B5 160 0.14 0.32 0.54 12 NA <br /> S-20-B5 42 0.10 0.099 0.096 1.0 NA <br /> S-25-B5 <2.0 0.077 <0.050 <0.050 0.060 NA ; <br /> S-30-B5 <2.0 0.14 0.056 -0.050 <0.050 NA <br /> Soil results in parts per million (ppm) <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> < = Less than the detection level for the analytical <br /> methods used <br /> NA = Not analyzed <br /> Sample designation: <br /> S-15-B1 <br /> �-- Boring number <br /> L----� Depth of sample <br /> Soil <br /> j <br /> r <br /> i <br /> t� <br /> 10 <br /> 0 <br /> AW11ed G&1SyS&wS <br />