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Table 1 <br /> Historical Analytical Data for Soil Samples <br /> (TPH-g, BTEX, Fuel Oxygenates, and Fuel Additives) <br /> Former Colombo I Toscana Bakery <br /> 1444 South Lincoln Street <br /> Stockton,California 95206 <br /> Concentration and Associated RWQCB Residential ESLs(mg/kg) <br /> Sample ID Sampling <br /> (Depth bgs) Date TPH-g Benzene Toluene Ethylbenzene Xylenes I MTBE TBA I DIPS ETBE TAME 1,2-DCA 1,2-DBA Lead <br /> (110) (0.12) (63) (2.3) (31) (30) (aza,0007 (NE) (NE) (NE) (0.22) (0.019) (NE) <br /> Notes: <br /> ft.bgs=Feet below ground surface. 1,2-DBA=1,2-dibmmoethane(ethylene dibromkle or EDB). <br /> mg/kg=Milligrams per kilogram. 1,2-DCA=1,2-dichluroethane(ethylene dichloride or EDC). <br /> TPH-g=Total petroleum hydrocarbons quant8ied as gasoline. NA=Not Analyzed <br /> MTBE=Methyl tertiary butyl ether. NE=None established. <br /> THA.Tertiary butyl alcohol. -1-Result is by EPA Method 8020. <br /> DIPE=[A-Isopropyl other. '2-Result by EPA Method 8260. <br /> ETBE=Ethyl tertiary butyl ether. '3-Analyte was detected at a concentration below the reporting limit,but above the laboratory method <br /> TAME=Tertiary amyl methyl ether. detection limb Reported value is estimated. <br /> RWQCB Res.ESL.San Francisco Bay Regional Water Quality control Board Residential Environmental Screening Level(Table K-1,May 2008) <br /> =Highlighted value exceeds ESL. <br /> S:kShare6,U5TSara LcelProiec4G01HomM1lSlocklon I1Wf&M Licdn atrnel)=ixt OB-NM'vxral n Rpdff&les 8 R}nealW 0]W a MN InalMelbn Da.-TaN.,A. Page 13 of 13 <br />