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Subsurface Investigation December 12. 1990 <br /> Former Unocal Station No. 2859, Stockton, California AGS 38012-5 <br /> TABLE 3 <br /> CONCENTRATIONS OF HYDROCARBONS IN SOIL AND WATER SAMPLES <br /> Former Unocal Service Station No. 2859 <br /> 1665 Pacific Avenue <br /> Stockton, California <br /> (June, 1988) <br /> Sample Depth Ethyl- Total <br /> Number (Feet) TPHg Benzene Toluene benzene Xylenes j <br /> S-25-B1 25 <2 <0.05 <0. 05 <0.05 <0.05 <br /> S-20-B2 20 8 0.10 0.31 2.70 2.11 <br /> S-25-B2 25 28 0.55 1.24 13 .99 7.83 <br /> S-25-B3 25 <2 <0.05 <0.05 <0. 05 <0. 05 <br /> W-33-MW1 <20 <0.5 <0.5 <0.5 <0.5 <br /> W-33-MW2 99 , 000 5,700 48,800 5, 000 25, 000 <br /> W-33-MW3 170 1.0 . <0.5 <0.5 1.6 <br /> Results of soil in parts per million (ppm) <br /> Results of water in parts per billion (ppb) j <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> < = Below detection limit for the method used. <br /> S-25-B3 <br /> ' Soil boring number <br /> Sample depth in feet below surface. <br /> Soil sample <br /> W-33-MW3 <br /> Water sample number';collected on June 6, 1988. <br /> Sample depth in feet below surface. <br /> Water <br /> 8 <br /> Applied GeoSYSMMS <br />