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COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Client Applied Earth Sciences,Inc Service Request L2400620 <br /> P o}ect Canteen <br /> ple Matrix Soil <br /> Surrogate Recovery Summary <br /> BTEX by 8021B <br /> Extraction Method EPA 5030B Units PERCENT <br /> Analysis Method 8021B Level Low <br /> Sample Name Lab Code Surf <br /> STK 1 L2400620-001 70 <br /> STK2 L2400620-002 66 <br /> STK3 L2400620-003 74 <br /> STK4 L2400620-004 60 <br /> Method Blank LWG0401116-4 86 <br /> Batch QC L2400609-001 77 <br /> Batch QCMS LWG0401116-1 79 <br /> Batch QCDMS LWG0401116-2 82 <br /> Lab Control Sample LWG0401116-3 95 <br /> Surrogate Recovery Control Limits(%} <br /> Surl = 4-Bromofluorobenzene 43-127 <br /> Adilk <br /> is flagged with an asterisk(*)indicate values outside control criteria <br /> Results flagged with a pound(#)indicate the control criteria is not applicable <br /> Printed 03/17/2004 17 24 25 Forth 21QOrganic Page 1 of 1 <br /> P 1STEALT-ACRYSTAL RPT\Fomi2 rpt Superset Reference RR5312 <br />