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CAMBRIA Table 3. Soil Analytical Data,Shell-branded Service Station,6131 Pacific Avenue,Stockton,California Sample MTBE by MTBEby Sample Depth Date TPHg B T E X 8020 8260 Methanol Comments ID (fbg) Sampled (mglkg) (fig) (mgkg) (mg&g) ('fig) (mg)kg) (mg/kg) (mg/kg) MW-13 15.5 09-Feb-04 <1.0 <0.0050 <0.0050 <0.0050 <0.0050 NA <0.0050 NA Oxygenates by 8260: Not detected MW-13 25.5 09-17eb-04 4.0 <0.0050 <0.0050 <0.0050 N.0050 NA <0.0050 NA Oxygenates by 8260: Not detected . MW-13 35.5 09-Feb-04 <I.0 <0.0050 <0.0050 <0.0050 <0.0050 NA <0.0050 NA Oxygenates by 8260: Not detected MW-12 5.5 11-Feb-04 <1.0 <0.0050 <0.0050 <0.0050 <0.0050 NA <0-W50 NA Oxygenates by 8260: Not detected MW-12 19.5 11-Feb-04 <1.0 <0.0050 <0.0050 <0.0050 <0.0050 NA <0.0050 NA Oxygenates by 8260: Not detected MW-12 34.5 11-Feb-04 <1.0 <0.0050 <0.0050 <0.0050 <0.0050 NA <0.0050 NA Oxygenates by 8260: Not detected Abbreviations and Notes: TPHg=Total petroleum hydrocarbons as gasoline by EPA Method 8015(Modified)or equivalent Reported as low/medium boiling point hydrocarbons quantitated against a gasoline standard for B-2 through B-14 and as petmleumhydtocarbons volatile for TS-1 through TS-6,TR-1 through TR-6,MW-1,MW-2,MW-3,and VEW-2. BTEX=Benzene,toluene,ethylbenzene,and xylenes by EPA Method 8020 or equivalent MTBE=Methyl tertiary butyl ether by EPA Method noted Methanol by EPA 8015(Modified) Oxygenates=Tertiary butanol or tertiary butyl alcohol,di-isopropyl ether,ethyl tertiary butyl Otter,and tertiary amyl methyl ether fbg=Feet below grade mg/kg=Milligntths per kilogram(pans permillion) NA=Not analyzed • <x=Not detected at reporting limit x ND=Not detected(reporting limit not specified in previous table) 0854 Page 7 of 7