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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: Shaw Environmental&Infrastructure,Inc Service Request: P0700322 <br /> Project: Harney Lane Landfill, San Joaquin County/124593(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 /> Lab Sample Name La Code Surl Sur2 Sur3 <br /> MW-1 P0700322-001 105 102 108 <br /> MW-2 P0700322-002 108 103 107 <br /> MW-3 P0700322-003 107 105 107 <br /> MW-4 P0700322-004 103 99 107 <br /> FIELD BLANK P0700322-005 101 104 109 <br /> TRIP BLANK P0700322-006 104 104 109 <br /> Method Blank PWG0700543-4 103 106 109 <br /> MW-1 MS PWG0700543-1 99 112 109 <br /> MW-IDMS PWG0700543-2 102 113 111 <br /> Lab Control Sample PWG0700543-3 102 112 111 <br /> Surrogate Recovery Control Limits(%) <br /> Surl = 1,2-Dichloroethane-d4 73-115 <br /> Sur2 = 4-Bromofluorobenzene 63-118 <br /> Sur3 = Toluene-d8 76-122 <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 /> 19 <br /> Printed: 04/09/2007 13:59:31 Form 2A-Organic Page 1 of 1 <br /> P:I.SMALTH\CRYSTAL.RP7kFonn2.rpt Superset Reference: RR13511 <br />