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I <br /> February 14 1992 <br /> ARCO Service Station No 2130, Stockton, California <br /> i <br /> TABLE 4 <br /> CONCENTRATIONS OF HYDROCARBONS IN SOIL SAMPLES <br /> ARCO Service Station No 2130 <br /> 7906 North El Dorado Street <br /> Stockton, California <br /> (page 2 of 2) <br /> Sample TPHg Benzene Toluene Ethyl- Total Total <br /> Number benzene Xylenes Lead <br /> S-26-B5 <br /> < 10 <0 005 <0 005 <0 005 <0 005 NA <br /> S-31-B5 46 0 035 0 042 0 020 015 NA <br /> S-51-B5 58 Oil 052 028 17 <50 <br /> r S-61-BS 140 039 097 058 34 NA <br /> S-36-B6 < 10 <0 005 <0 005 <0 005 <0 005 NA <br /> S-46-B6 < 10 0 049 <0 005 <0 005 0 030 <50 <br /> S-61-136 < 10 0 039 <0 005 00061 0 023 NA <br /> S-31-B7 17 <0 005 0 015 0 010 0 070 NA <br /> S-56-137 530 052 46 3 1 17 <50 <br /> S-61-B7 14 10 13 012 064 NA <br /> S-41-B8 < 10 0 043 0 029 <0 005 0 058 NA <br /> S-61-B8 < 10 <0 005 <0 005 <0 005 <0 005 NA <br /> Results in parts per million (ppm) <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> < = Less than the detection limit for the analytical methods used <br /> NA = Not Analyzed <br /> Sample designation S-61-B8 <br /> S = Soil sample <br /> bl = Depth of sample in feet <br /> B8 = Boring number <br /> 30003-4W <br />