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Table 2 <br /> Groundwater Analytical Results-Oxygenate Compounds <br /> Former Chevron Service Station#9-0557 <br /> P139 South Center Street Stockton,California <br /> ai <br /> EXPLANATIONS: ANALYTICAL METHOD: <br /> TBA=Tertiary butyl alcohol EPA Method 8260 f,l Oxygenate Compounds <br /> MTBE=Methyl tertiary butyl ether <br /> O1PE=Di-isopropyl ether <br /> ETRE-Ethyl tertiary butyl ether <br /> TAME=Tertiary amyl methyl ether <br /> 1,2-DCA= 1,2-Dichlnmethane <br /> EDB= 1,2-Dibromoethane <br /> (pph)=Parts per billion <br /> -=Not Analyzed <br /> Laboratory report indicates Full Scan by EPA Method 8260 were less than the reporting limits; unless noted in table. <br /> Laboratory report indicates Full Scan by EPA Method 8260 were less than the reporting limits; except far Isopropyl benzene at 39 pph, <br /> n-Propylbenzene at 53 ppb, 1,3,5-Tri methyl benzene at 15 ppb, 1,2,4-Trimethylbenzene at 5.4 ppb,sec-Butylbenzene at 6.7 ppb, <br /> p-Isopmpyltoluene at 5.5 pph,n-Butylbenzene at 9.7 ppb,and Naphthalene at 10 ppb. <br /> ` Laboratory ort indicates Full Scan by EPA Method 8260 were less than�i the reporting limits; except for Isopropyl benzene at 27 ppb, <br /> n-Pmpylbenzene at 55 ppb, 1,35-Trimethylbenzene at 180 ppb,tett-Butylbenzene at 86 ppb, 1,2,4-Trimetbylbenzene at 580 ppb,and <br /> Naphthalene at 190 pph. <br /> Samples were collected for oxygenate compounds but request for analysis omitted on Chain of Custody. <br /> ` Data provided by Secor International,Inc. Samples were collected prior tla initiation of ozone sparging(baseline samples). Wells were not purged <br /> prior to collection of samples. f <br /> 6 I <br /> Data provided by Secor International,Inc. Wells were not purged prior to collection of samples. <br /> 7 Change to data requested and provided by Secor International,lne. <br /> I <br /> 9.0557.x 6843 i <br /> i A 17103 <br />