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11161A XLS Page 11 of 16 <br /> GEOTEST work Order# 11161A <br /> GEOTEST Project# 970527-03 <br /> GEOTEST Client ro# 515-71017 <br /> An Enworimenta[Monitoring and Testing Service <br /> (310)498-9515 {800}6245744 <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 /> BTEX BY EPA METHOD 8020 <br /> Matrix Matrix <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 80-120 95 93 61-127 21 0-21 <br /> Toluene 94 80-120 95 92 61-116 32 0-16 <br /> Ethylbenzene 99 80-120 98 96 62-117 21 0-20 <br /> Total Xylenes 101 80-120 101 98 68-125 3 0 0-21 <br />