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COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> Client Applied Earth Sciences,Inc Service Request L2400620 <br /> Protect Canteen Date Extracted 03/15/2004 <br /> lople Matrix Soil Date Analyzed 03/15/2004 <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> Gasoline Range Organics(GRO) <br /> Sample Name Batch QC Units rng/Kg <br /> Lab Code L2400609-001 Basis Wet <br /> Extraction Method EPA 5030B Level Low <br /> Analysts Method 8015M Extraction Lot LWG0401114 <br /> Batch QCMS Batch QCDMS <br /> LWG0401114-1 LWG0401114-2 <br /> Sample Matrix Spike Duplicate Matrix Spike %Rec RPD <br /> Analyte Name Result Result Expected %Rec Result Expected %Rec Limits RPD Limit <br /> Gasoline ND 0 917 1 00 92 0 928 1 00 93 51-109 1 20 <br /> 0 <br /> es flagged with an asterisk(*)indicate values outside control criteria <br /> Results flagged with a pound(#)indicate the control criteria is not applicable <br /> Percent recoveries and relative percent differences(RPD)are determined by the software using values in the calculation which have not been rounded <br /> Pnnted 03/17/2004 17 31 54 Form 31 0rganic Page i of 1 <br /> P 1STEALTMCRYSTAI RPTTorm3DMS rpt SuperSet Reference RR5313 <br />