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TABLE 3 Page 4 of 4 GRAB GROUNDWATER DATA SHELL-BRANDED SERVICE STATION 2494 EAST FREMONT STREET STOCKTON,CALIFORNIA Sample Depth(/t) Date TPHg B T E X MTBE DIPE ETBE TAME TBA Methanol Ethanol 1,2-DCA EDB (uglE) (,ug2) (,ug2) (,ug2) (,um) (um) (NSE) (,uSIL) (,uglL) (,uS1E) (um) (um) (pg E) (pg E) B-33 69 8/2/10 <50 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- __ <10.0 --- --- 23 --- SB-33 85 8/2/10 90 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- -- <10.0 --- --- 52 --- B-33 112 8 <50 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- --- <10.0 --- --- 0.5 --- SB-34 68 7/29/10 93000 8,100 13,000 2,700 17,000 <100 --- --- --- <1,000 --- --- 890 --- SB-34 84 7/29/10 420 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- --- <10.0 --- --- 10 --- SB-35 63 7/27/10 <50 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- --- <10.0 --- --- <0.50 --- B-35 83 7/27/10 <50 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- --- <10.0 --- --- <0.50 --- B-3 7/26/10 <50 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- __ <10.0 --- --- <0.50 --- SB-36 80 7/26/10 120 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- -- <10.0 --- --- 5 --- B-3 110 7/26/10 <50 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- --- <10.0 --- --- <0.50 --- SB-37 64 7/28/10 660 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- --- 44 --- --- 780 --- SB-37 84 7/28/10 330 <0.50 <1.0 <1.0 <1.0 <1.0 --- --- --- <10.0 --- --- 49 --- SB-37 10 7/28/10 <50 <0.50 <l. <l. <l. <l. --- --- --- <10.0 --- --- 2.7 --- Abbreviations and Notes: Bold data is detected above reporting limits pg/L=Micrograms per liter(parts per billion) <x=Not detected at reporting limit x =Not available or not a---lyzed =Hydrocarbon reported in the gasoline range does not match the laboratory's standard TPHg=Total petroleum hydrocarbons as gasoline EPA Method 8015(Modified)or EPA Method 8260 BTEX=benzene,toluene,ethylbenzene,xylene by EPA Method 8020 or EPA Method 8260 The following constituents a---lyzed by EPA Method 8260B: MTBE=Methyl tertiary butyl ether DIPE=Di-isopropyl ether ETBE=Ethyl tertiary butyl ether TAME=Tertiary amyl methyl ether TBA=Tertiary butyl alcohol Methanol,ethanol 1,2-DCA=1,2-Dichloroethane EDB=Ethylene dibromide 240797(18)