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• Table 3 <br /> Groundwater Analytical Data <br /> Soil Borings <br /> ARCO Service Station 4932 <br /> 16 E.Harding Way <br /> Stockton, California <br /> Depth TPH as Ethyl- <br /> Sample Date Sampled Gasoline Benzene Toluene benzene Xylenes MtBE TAME TBA 1,2-DCA <br /> Number Sampled feet,bgs (ug/L) (ug/L) (uglL) (ug/L) (uglL) (ug/L) (ug/L) (ug/L) (ug/L) <br /> <0.50 <0.50 2,400 <20 <200 <20 <br /> SB-1 7/9/2001 33' <50 <0.50 <0.50 <20 140 <br /> <50 <0.50 <0.50 <0.50 <0.50 16 <2.0 <br /> 7/10/2001 48' <2.0 <2.0 <20 <2.0 <br /> 7/10/2001 68' <50 <0.50 <0.50 <0.50 <0.50 <br /> SB-2 7/12/2001 33' 56,000 4,500 4,700 3,000 11,000 160,000 300 <1,000 <100 <br /> 2,300 6,600 37,000 <60 1,100 370 <br /> 7/12/2001 50' 36,000 7,700 74 4.7 <2.0 <20 4.0 <br /> 7/12/2001 65' <50 <0.50 <0.50 <0.50 1.1 <br /> 7/12/2001 7T <50 <0.50 <0.50 <br /> <0.50 <0.50 7.8 <2.0 <20 <2.0 <br /> TPH=Total Petroleum Hydrocarbons <br /> ug/L=micrograms per liter <br /> MtBE=Methyl tert-butyl ether <br /> TAME=tert-Amyl methyl ether <br /> TBA=tart-Butyl alcohol <br /> 1,2-DCA=1,2 Dichloroeihane <br /> TPH as Gasoline,Benzene,Toleune,Ethylbenzene,and Xylenes(BTEX)were analyzed by EPA Method 8015/8020. <br /> Fuel oxygenates MtBE,TAME,TBA, 1,2-DCA, Di-isopropyl ether(DIPE), Ethylene dibromide(EDB),and Ethyl tart-butyl ether(EtBE)were analyzed by <br /> EPA Method 82608. <br /> DIPE,EDB,and EtK were also analyzed by EPA Method 82608.All were reported as nondetectable. <br /> 0 <br /> 1 <br /> Projects/ARC O/4932/R eport/AddAssess.xl s <br />