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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: Shaw Environmental&Infrastructure,Inc Service Request: P0900161 <br /> Project: Foothill Landfill,San Joaquin County/124591 (Ground Water) 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 /> %RCC <br /> Analyte Name Result Expected %Rec Limits <br /> Bromoform 12.7 10.0 127 76-138 <br /> Bromomethane 9.53 10.0 95 56-148 <br /> Carbon Disulfide 19.8 20.0 99 39-167 <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 91-123 <br /> Dibromomethane 11.1 10.0 111 88-120 <br /> Dichlorodifluoromethane 10.1 10.0 101 35-161 <br /> Ethylbenzene 10.9 10.0 109 85-120 <br /> Hexachlorobutadiene 11.0 10.0 110 55-146 <br /> lodomethane 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-Butylbenzene 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 /> Trichloroethene(TCE) 10.4 10.0 104 77-123 <br /> Trichlorofluoromethane 9.65 10.0 97 64-147 <br /> Vinyl Acetate 20.0 20.0 100 56-144 <br /> Vinyl Chloride 9.98 10.0 100 56-148 <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 /> 23 <br /> Analyst:KMiller Form 3C-Organic Page 2 of 2 <br /> Printed: 01/23/2009 10:05:06 <br /> P:\STEALTMCRYSTAL.RPT'Torm3LCS.rpt SuperSetReference: RR15267 <br />