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COLUNIBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: Shaw Environmental&Infrastructure,Inc Service Request: P0800193 <br /> Project: Foothill Landfill,San Joaquin County/124591 (Leachate Module) Date Extracted: 02/12/2008 <br /> Sample Matrix: Water Date Analyzed: 02/12/2008 <br /> Lab Control Spike Summary <br /> Volatile Organic Compounds <br /> Extraction Method: EPA 5030B Units: ug!L <br /> Analysis Method: 8260B Basis: NA <br /> Level: Low <br /> Extraction Lot: PWG0800308 <br /> Lab Control Sample <br /> PWG0800308-3 <br /> Lab Control Spike o <br /> /aRec <br /> Analyte Name Result Expected %Ree Limits <br /> Vinyl Acetate 23.2 20.0 116 84-146 <br /> Vinyl Chloride 12.0 10.0 120 66-135 <br /> tResults nagged with an asterisk indicate values outside control criteria. <br /> Percent recoveries and relative percent differences(RPD)are determined by the software using values in the calculation which have not been rounded. Q <br /> V <br /> Printed: 02/15/2008 08:36:08 Foran 3C-Organic Page 3 of 3 <br /> P:'STEALTH'•,CRYSTAL.RPI'NForm3LCS.rpt SuperSctReference: RR14357 <br />