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Table 1 <br /> GROUNDWATER MONITORING AND CHEMICAL ANALYTICAL DATA <br /> Former Unocal Service Station No 0187 <br /> 437 East Miner Avenue <br /> Stockton, California <br /> i <br /> Well Sample Well Depth to Goundwater Product Ethyl Total <br /> Number Date Elev Water Elev Thickness TPHg Benzene Toluene benzene Xylenes <br /> (ft ) (ft ) (ft ) (ft } (ppb) (ppb) (ppb) (ppb) (ppb) <br /> U-1 7/31195 1160 4190 -30 30 0 na na na na na <br /> U-2 7/31/95 11 49 4141 -29 92 0 na na na na na <br /> U-3 7131195 11 25 41 07 -29 82 0 na na na na na <br /> U-4 7131195 11 71 42 08 -30 37 0 300 1 6 <0 50 <0 50 <0 50 <br /> U-5 7131195 1258 42 89 -30 31 0 <50 <0 50 <0 50 <0 50 <0 50 <br /> U-6 7/31195 11 64 40 85 -29 21 0 <50 <0 50 <0 50 <0 50 <0 50 <br /> U-7 7/31/95 1175 41 11 -29 36 0 5,400 620 200 290 430 <br /> U-8 7/31/95 11 53 42 95 -31 42 0 100 7 3 <0 50 0 65 10 <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> ft = feet <br /> ppb = parts per billion <br /> 4827 04 <br />