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COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Client Applied Earth Sciences, Inc Service Request L2400620 <br /> P oject Canteen <br /> ple Matrix Soil <br /> Surrogate Recovery Summary <br /> Gasoline Range Organics(GRO) <br /> Extraction Method EPA 5030D Units PERCENT <br /> Analysis Method 8015M Level Low <br /> Sample Name Lab Code Surf <br /> STK 1 L2400620-001 94 <br /> STK2 L2400620-002 73 <br /> STK3 L2400620-003 82 <br /> STK4 L2400620-004 69 <br /> Method Blank LWG0401114-4 94 <br /> Batch QC L2400609-001 85 <br /> Batch QCMS LWG0401114-1 96 <br /> Batch QCDMS LWG0401114-2 95 <br /> Lab Control Sample LWG0401114-3 100 <br /> i <br /> Surrogate Recovery Control Limits(%} <br /> Surl = Bromofluorobenzene 52-118 <br /> Wflagged with an asterisk(*)indicate Values outside control criferna <br /> Results flagged with a pound(4)indicate the control criteria is not applicable <br /> Pnnted 03/17/2004 17 31 50 Form 210Orgamc Page 1 of 1 <br /> P%STEALTHICRYSTAL RpT\Form2 rpt SuperSet Reference RR5313 <br />