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' 11168&XLS Page 8 of 9 <br /> GEOTEST Work Order# 11168A <br /> GEOTEST Project# 970528-05 <br /> OEOTEST ClienttD# 675-710 <br /> An Envvomnental Mondonng and Testing Service <br /> (310)498-9515 (800)624-5744 <br /> QUALITY ASSURANCEIQUALITY CONTROL SUMMARY <br /> Analyst VN <br /> Preparation Method 5030 <br /> ' Matnx Water <br /> ANALYSIS OF VOLATILE ORGANICS BY GAS CHROMATOGRAPHY/PID <br /> BTEXMTBE BY EPA METHOD 8020 <br /> ' Matnx Matnx <br /> LCS Acceptable Spike Spike Dup Acceptable RPD Acceptable <br /> %Rec Range %Rec %Rec Range % Range <br /> Analysis Date 5130197 5130197 5130197 <br />' Analyte <br /> Benzene 94 81-117 95 93 61-127 21 0-21 <br /> Toluene 94 78-110 95 92 61-116 32 0-16 <br />' Ethylbenzene 99 74-115 98 96 62-117 21 0-20 <br /> Total Xylenes 101 85-117 101 98 68-125 3 0 0-21 <br /> Methyl-t-butyl ether 96 70-130 88 92 50-150 4 4 0-21 <br /> r <br />