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• s • <br /> Table 3 <br /> Groundwater Analytical Data <br /> Former Arco Service Station#4493 <br /> 205 North Center Street <br /> Stockton,California <br /> TPH as Ethyl- <br /> Wall Date Gasoline Benzene Toluene benzene Xylenes MtBE <br /> Number Sampled Notes (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> MW SM 6112102 a 4,700 69 90 650 490 70 <br /> MW-8D 6/12102 a 2,000 70 35 370 92 46 <br /> MW-9M 6/12102 a,b 770 37 77 110 94 44 <br /> MW-9D 6/12102 a 460 27 46 69 74 22 <br /> MW-10M 6112102 a,b 430 12 087 <0 50 12 58 <br /> MW-IOD 6112102 a,b 87 1 9 <0 50 <0 50 <0 50 31 <br /> TPH=Total purgeable hydrocarbons <br /> ppb=parts per billion <br /> MtBE=Methyl tertiary Butyl Ether <br /> a=Samples were analyzed for fuel oxygenates by EPA Method 8260 <br /> TBA, DiPE,EtBE,TAME,ethanol,1,2-DCA,and EDB were not detected above the laboratory detection limit. <br /> b=Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern <br /> of the requested fuel <br /> TBA=Tert-butyl alcohol <br /> DIPE=Di-isopropyl ether <br /> EtBE=Ethyl tert-butyl ether <br /> TAME=Tert-amyl methyl ether <br /> 1,2 DCA=1,2-Dichloroethane <br /> EDB=1,2-Dibromoethane <br /> I <br />