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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: Shaw Environmental&Infrastructure,Inc Service Request: P0700023 <br /> Project: Harney Lane Landfill,San Joaquin County/791290(Ground Water) <br /> Sample Matrix: Water <br /> Surrogate Recovery Summary <br /> Volatile Organic Compounds <br /> Extraction Method: METHOD Units: PERCENT <br /> Analysis Method: 624M Level: Low <br /> Sample Name Lab Code Surl Sur2 Sur3 <br /> MWI P0700023-001 112 100 105 <br /> MW2 P0700023-002 113 98 103 <br /> MW3 P0700023-003 112 99 103 <br /> MW4 P0700023-004 112 101 102 <br /> FIELD BLANK P0700023-005 111 102 104 <br /> TRIP BLANK P0700023-006 114 101 106 <br /> Method Blank PWG0700142-4 113 102 104 <br /> MW4MS PWG0700142-1 110 111 107 <br /> MW4DMS PWG0700142-2 109 112 1.05 <br /> Lab Control Sample PWG0700142-3 Ho 1.11 106 <br /> Surrogate Recovery Control Limits <br /> Surl = 1,2-Dichloroethane-d4 75-124 <br /> Sul-2 = 4-Bromofluorobenzene 69-120 <br /> Sur-3 = Toluene-d8 84-115 <br /> Results flagged with an asterisk(')indicate values outside control criteria. <br /> Results flagged with a pound(#)indicate the control criteria is not applicable. <br /> 1 <br /> Printed: 01/19/2007 11:28:47 Form 2A-Organic Page 1 of 1 <br /> P:\STEALTH\CRYSTAL.RPT\Form?.ipt SuperSet Reference: RR13316 <br />