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COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> wt Delta Environmental Consultants Service Request X0500292 <br /> et, Canteen Corp Date Extracted: 03/17/2005 <br /> Sample Matrix Water Date Analyzed 03/17/2005 <br /> Lab Control Spike/Duplicate Lab Control Spike Summary <br /> TPH as Gasoline(GRO) <br /> Extraction Method: EPA 5030B Units. ug/L <br /> Analysis Method. 8015 GRO Basis NA <br /> Level Low <br /> Extraction Lot XWG0500309 <br /> Lab Control Sample Duplicate Lab Control Sample <br /> XWG0500309-3 XWG0500309-4 <br /> Lab Control Spike Duplicate Lab Control Spike %Rec RPD <br /> Analyte Name Result Expected %Rec Result Expected %Rec Limits RPD Limit <br /> C6-C10 GRO 1190 1000 119 1200 1000 120 78-123 1 14 <br /> I <br /> i <br /> f <br /> f <br /> • <br /> fResults flagged with an asterisk(*)indicate values outside control criteria. <br /> Percent recoveries and relative percent differences(RPD)are determined by the software using values to the calculation which have not been rounded <br /> IPrinted 03/29/2005 14 11 18 Fonn 3C-Organic Page 1 of 1 <br />'3 J.1STpALTH\CRYSTAL RP'TT rni3DLC rpt 5uperSet Reference RR5509 <br />