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1 <br /> J,,GTEL Client ID 020105306 QUALITY CONTROL RESULTS <br /> ogin Number: C4070367 Volatile Organics <br />' Project ID (number) 020105306 - Method--EPA-8020 <br /> Method_—EPA_8020 <br /> Project ID (name): ARCO-#6&E9-Manteca. CA Matrix: Aqueous <br /> Matrix Spike and Matrix Spike Duplicate Results <br />' Matrix Matrix Matrix Spike Matrix Spike <br /> Original Spike Spike Spike Duplicate Duplicate Acceptability Limits <br /> Analyte Concentration Amount Concentration Recovery X concentration Recovery X RPD X RPD S Recovery X <br /> EPA 8020 GTEL Sample ID C4070327-06 Spike ID.G072594-3 Dup ID G072594-4 <br /> Units: u /L Analysis Date:25-JUL-94 25-JUL-94 26-JUL-94 Client ID:Batch QC <br />' Benzene < 0.50 20.Q 17.6 88,0 17.7 v 88.5 0 5 34 }_ : 57;.3-138% <br /> Toluene < 1 0 20 0 17 7 88 5 17 5 87 5 1 1 31 63-134% <br /> Rbylbenzene < 1.a 2D.0 17.3 . 86.5 17.7 88.5 2.2 38'- ..:.:..ft9 8,137% <br /> X lenes (Total) < 2 0 60 0 53 5 89 2 54 0 90 0 0. 8_ 31 59 3-144% <br />' Notes <br /> 1 <br /> I <br /> I GTEL Concord CA 1NVIR NGTEL <br /> ONMINSAL <br /> C4070367 3 LARORASOR111 INC. <br />