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TABLE 1 CONCENTRATIONS OF HYDROCARBON CONSTITUENTS IN SOIL AND WATER <br /> SAMPLES NEAR THE SITE OF OF FORMER EXXON RETAIL SITE 7-3942, <br /> 4444 NORTH PERSHING AVENUE STOCKTON CALIFORNIA <br /> Total <br /> Well Depth Ethyl- Petroleum <br /> No. Datea (feet) Benzene Toluene Benzene Xylenes Hydrocarbons <br /> Borehole Soil Samples (mg/kg) <br /> MWi 01/87 16 -- -- -- -- (10 <br /> MW2 01/87 16 -- -- -- -- 60 <br /> 30 -- -- -- -- <10 <br /> MW3 01/87 20 -- -- -- -- < 10 <br /> MW4 07/87 17.5 <0.050 <0.050 <0.050 <0.050 <10 <br /> MW5 07/87 17.5 <0.050 (0.050 <0.050 (0.050 <10 <br /> MW6 07/87 17.5 <0.050 <0.050 <0.050 <0.050 < 10 <br /> MW7 07/87 17.5 <0.050 <0.050 <0.050 <0.050 < 10 <br /> 27.0 <0.050 <0.050 (0.050 <0.050 <10 <br /> MW8 02/88 18.5 <0.5 <0.5 -- <0.5 <10 <br /> 28.5 12 150 -- 260 3,200 <br /> MW9 02/88 18.5 <0.5 <0.5 -- <0.5 <10 <br /> 23.5 <0.5 <0.5 -- <0.5 < 10 <br /> MW10 04/88 21 .5 <0.5 <0.5 -- <0.5 <10 <br /> Excavation Soil Samples (mg/kg) <br /> Well Depth Ethyl- Organic <br /> No. Date (feet) Benzene Toluene Benzene Xylenes Lead <br /> ESI* 12/86 2 <0.001 <0.001 <0.001 <0.001 <0.05 <br /> FSI* 12/86 2 <0.001 <0.001 <0.001 <0.001 -- <br /> ES2* 12/86 2 <0.001 <0.001 <0.001 <0.001 <0.05 <br /> ES2* 12/86 2 -- -- -- .-„ -- <0.05 <br /> ��( <br /> ES3 12/86 2 <0.001 0.076 < 1 .2 I <0.001 <0.05 <br /> ES4 12/86 2 <0.001 <0.001 <0.001 <0.001 <0.05 <br /> a. Samples from 12/86 reported in AEM 1986; from 01/87, in HLA 1987; in 07/87, <br /> from EA 1987. <br /> Note: * indicates replicates. <br /> e20/73942/tabi <br />