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March 20, 1992 <br /> ARCO Station No 6100, Tracy, California <br /> TABLE 2 <br /> CONCENTRATIONS OF HYDROCARBONS IN SOIL SAMPLES <br /> COLLECTED FROM BORINGS B-6 THROUGH B-19 <br /> ARCO Service Station No. 6100 <br /> 25775 Patterson Pass Road <br /> Tracy, California <br /> (page 3 of 3) <br /> Sample Ethyl- Total <br />` Number TPHg Benzene Toluene benzene Xylenes Lead <br /> S-10-B18 <1 . 0 <0. 0050 <0 . 0050 <0 . 0050 0 . 0053 NAt,-" <br /> S-25-B18 <1. 0 0 . 017 <0 . 0050 <0. 0050 <0 . 0050 NAI-,' <br /> S-40-B18 <1 . 0 0 . 0032 <0. 0050 <0 . 0050 <0 . 0050 NA - <br /> S-69-B18 <1 . 0 <0. 0050 <0 . 0050 <0. 0050 0 . 0050 NAv-" <br /> S-10-B19 <1. 0 <0. 0050 0 . 0094 <0. 0050 0 . 0068 NA--- <br /> S-30-B19 <br /> Av"S-30-B19 <1 . 0 <0 . 0050 <0 . 0050 <0. 0050 _0-.-0-053 N p NA--' <br /> S-45-B19 <1. 0 <0. 0050 <0 . 0050 <0. 0050 <0. 0050 NA <br /> S-1014comp 47 0. 034 0 . 052 0 . 044 0. 17 <0. 050* <br /> S-1127-1A-D 2 . 1 <0. 0050 <0 . 0050 <0. 0050 0 . 029 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 /> 1 NA = Not analyzed <br /> * Organic lead <br /> Sample designation: <br /> S-10-B18 <br /> �--- Boring number <br /> Depth of sample <br /> Soil <br /> 1 <br /> M <br /> 0129ccar <br /> 30041-2 <br />