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Results of Initial Investigation and Work Plan December 18, 1990 <br /> 4 ARCO Service Station No. 760, Lodi, Califorma AGS 38048-4 <br /> TABLE 1 <br /> CONCENTRATIONS OF HYDROCARBONS IN SOIL SAMPLES <br /> FROM BORINGS B-1 THROUGH B-3 <br /> ARCO Service Station No. 760 <br /> 225 South Cherokee Lane <br /> Lodi, California <br /> (May and June 1e90) <br /> Sample Ethyl- Total <br /> Number TPHg TPHd TOG Benzene Toluene benzene Xylenes <br /> S-10-B1 NR NR 50 NR NR NR NR <br /> S-20-B1 NR NR 58 NR NR NR NR <br /> S-25-PI 3600* 4300* <50 <0.050* 13* 32* 74* <br /> S-30-B1 NR NR <50 NR NR NR NR <br /> ® S-35-B1 e.1* NR NR <0.050* <0.050* 0.11* 0.11* <br /> S-45-B1 <2.0* NR NR <0.050* <0.050* <p.050* <0.050* <br /> S-55-B1 <2.0* NR NR [0.050* <0.050* <0.050* <0.050* <br /> S-10-B2 NR NR 157 NR NR NR NR <br /> S-15-B2 <2.0 <10 <50 <0.050 <0.050 <0.050 <0.050 <br /> S-20-B2 NR NR <50 NR NR NR NR <br /> ® { S-25-B2 5500 MR NR <0.050 20 34 110 <br /> S-35-A2 29 NR :dR <0.050 <0.050 0.17 0.28 <br /> S-45-B2 <2.0 NR NR <0.050 <0.050 <0.050 <0.050 <br /> S-55-B2 <2.0 NR NR <0.050 <0.050 <0.050 <0.050 <br /> ® S-10-B3 NR NR 303 NR NR NR NR <br /> S-15-B3 3.6 <10 <50 <0.050 <0.050 <0.050 <0.050 <br /> S-25-B3 4200 NR NR <0.050 11 18 85 <br /> Results in parts per million (ppm) <br /> j TPHg = Total petroleum hydrocarbons as gasol..'ne <br /> ® TPHd = Total petroleum hydrocarbons as diesel <br /> TOG = Total oil and grease <br /> < = Less than the detection limit for the analytical <br /> methods used <br /> NR = Analyses not regrsested <br /> * = Analyses performed after holding time expired <br /> ® Sample designation: <br /> S-10-B1 <br /> Boring number <br /> Depth of sample <br /> Soil <br /> 3� 8 <br /> ar <br /> App/ied GeoSysteme <br />