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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> ' Client: Shaw Environmental&Infrastructure, Inc Service Request: P0800213 <br /> Project: Foothill Landfill,San Joaquin County/124591 (Ground Water) <br /> Sample Matrix: Water <br /> Surrogate Recovery Summary <br /> Volatile Organic Compounds <br /> Ext-action Method: EPA 5030B Units: PERCENT <br /> Analysis Method: 8260B Level: Low <br /> Sample Name Lab Code Surl Stu-2 Sur3 <br /> \ 111--2R P0800213-001 104 101 87 <br /> MW-3 P0800213-002 103 100 87 <br /> FIELD BLANK P0800213-003 102 101 89 <br /> TRIP BLANK P0800213-004 101 99 88 <br /> Method Blank PWG0800288-4 106 100 88 <br /> Lab Control Sample PWG0800288-3 103 102 99 <br /> Duplicate Lab Control Sample PWG0800288-5 101 104 97 <br /> Surrogate Recovery Control Limits(`%) <br /> Sur] = Dibromofluoromethane 73-129 <br /> Sur2 = Toluene-d8 76-122 <br /> Sur3 = 4-Bromo flu orobenzene 63-118 <br /> Results nagged with;in asterisk(1)indicate values outside control criteria. <br /> Results flagged with a pound(#)indicate the control criteria is not applicable. <br /> 23 <br /> Printed: 02/13/2008 12:15:16 Form 2A-Organic Page 1 of 1 <br /> P:I'STBALftRCRYSTAL.RPT'Tonn2.rpt SuperSetReference: RR14352 <br />