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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: Shaw Environmental&Infrastructure,Inc Service Request: P0900162 <br /> Project: Foothill Landfill,San Joaquin County/124591 (Leachate Module) Date Extracted: 01/21/2009 <br /> Sample Matrix: Water Date Analyzed: 01/21/2009 <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: PWG0900148 <br /> Lab Control Sample <br /> PWG0900148-3 <br /> Lab Control Spike <br /> %Rec <br /> Analyte Name Result Expected %Rec Limits <br /> Bromomethane 9.53 10.0 95 56-148 <br /> Carbon Disulfide 19.8 20.0 99 397167 <br /> Carbon Tetrachloride 11.1 10.0 111 65-137 <br /> Chlorobenzene 10.6 10.0 106 88-116 <br /> Chloroethane 10.1 10.0 101 53-150 <br /> Chloroform 11.1 10.0 111 87-124 <br /> Chloromethane 10.4 10.0 104 44-155 <br /> cis-1,2-Dichloroethene 10.8 10.0 108 86-122 <br /> cis-1,3-Dichloropropene 12.0 10.0 120 84-126 <br /> Dibromochloromethane 12.2 10.0 122 91423 <br /> Dibromomethane 11.1 10.0 ill 88-120 <br /> Dichlorodifluoromethane 10.1 10.0 101 35-161 <br /> Diisopropyl Ether 21.8 20.0 109 84-130 <br /> Ethanol 342 400 85 50-143 <br /> Ethylbenzene 10.9 10.0 109 85-120 <br /> Hexachlorobutadiene 11.0 10.0 110 55-146 <br /> Iodomethane 20.3 20.0 102 73-143 <br /> Isopropylbenzene 11.2 10.0 112 82-127 <br /> Total Xylenes 32.3 30.0 108 86-120 <br /> Methyl tert-Butyl Ether 21.7 20.0 109 81-131 <br /> Methylene Chloride 10.7 10.0 107 77-121 <br /> n-Butylbenzene 11.5 10.0 115 77-129 <br /> n-Propylbenzene 11.2 10.0 112 78-121 <br /> Naphthalene 12.0 10.0 120 66-134 <br /> sec-Butylbenzene 12.1 10.0 121 79-142 <br /> Styrene 11.4 10.0 114 92-122 <br /> tert-Amyl Methyl Ether 22.1 20.0 111 82-130 <br /> tert-Butyl Alcohol 196 200 98 77-129 <br /> tert-Butyl Ethyl Ether 21.8 20.0 109 80-132 <br /> tert-13utylbenzene 10.9 10.0 109 76-127 <br /> Tetrachloroethene(PCE) 10.5 10.0 105 66-138 <br /> Toluene 10.6 10.0 106 81-122 <br /> trans-1,2-Dichloroethene 10.3 10.0 103 72-121 <br /> trans-1,3-Dichloropropene 11.9 10.0 119 81-122 <br /> trans-l,4-Dichloro-2-butene 22.2 20.0 111 53-139 <br /> Results flagged 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. <br /> 16 <br /> Analyst:I{Miller Form 3C-Organic Page 2 of 3 <br /> Printed 01/23/2009 10:06:37 <br /> P:\STEALTH\CRYSTAL.RPTtForrn3LCS.rpt SuperSet Reference: RR15208 <br />