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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: Shaw Environmental&Infrastructure,Inc Service Request: P0600138 <br /> Protect: Harney Lane Landfill,San Joaquin County/791290/0004000 Date Extracted: 10/27/2006 <br /> Sample Matrix: Water Date Analyzed: 10/27/2006 <br /> Lab Control Spike/Duplicate Lab Control Spike Summary <br /> Volatile Organic Compounds <br /> Extraction Method: METHOD Units: ug/L <br /> Analysis Method: 624M Basis: NA <br /> Level: Low <br /> Extraction Lot: PWG0601542 <br /> Lab Control Sample Duplicate Lab Control Sample <br /> PWG0601542-1 PWG0601542-2 <br /> Lab Control Spike Duplicate Lab Control Spike <br /> %Ree RPD <br /> Analyte Name Result Expected %Rec Result Expected %Rec Limits RPD Limit <br /> 1,1,1-Trichloroethane(TCA) - 21.0 20.0 105 18.9 20.0 95 75-125 11 30 <br /> 1,1,2,2-Tetrachloroethane 18.2 20.0 91 18.1 20.0 91 60-140 1 30 <br /> 1,1,2-Trichloroethane 21.1 20.0 106 19.1 20.0 96 71-129 10 30 <br /> 1,1,2-Trichlorotrifluoroethane 22.7 20.0 114 20.5 20.0 103 67-134 10 30 <br /> 1,1-Dichloroethane 20.6 20.0 103 18.8 20.0 94 72-128 9 30 <br /> 1,1-Dichloroethene 21.2 20.0 106 18.9 20.0 94 50-150 11 30 <br /> 1,2-Dichlorobenzene 22.2 20.0 111 20.0 20.0 100 63-137 10 30 <br /> 1,2-Dichloroethane(EDC) 20.4 20.0 102 18.9 20.0 94 68-132 8 30 <br /> 1,2-Dichloropropane 20.9 20.0 104 19.2 20.0 96 34-166 9 30 <br /> 1,3-Dichlorobenzene 22.0 20.0 110 19.7 20.0 99 73-127 11 30 <br /> 1,4-Dichlorobenzene 21.8 20.0 109 19.5 20.0 97 63-137 11 30 <br /> 2-Chloroethyl Vinyl Ether 43.4 40.0 108 39.8 40.0 99 1-224 9 30 <br /> Benzene 21.6 20.0 108 19.4 20.0 97 64-136 11 30 <br /> Bromodichloromethane 21.7 20.0 109 19.9 20.0 99 66-134 9 30 <br /> Bromoform 22.5 20.0 112 19.9 20.0 99 71-129 12 30 <br /> Bromomethane 21.1 20.0 106 20.6 20.0 103 14-186 2 30 <br /> Carbon Tetrachloride 21.9 20.0 109 19.7 20.0 99 73-127 10 30 <br /> Chlorobenzene 21.7 20.0 109 19.4 20.0 97 66-134 11 30 <br /> Chloroethane 20.6 20.0 103 19.2 20.0 96 38-162 7 30 <br /> Chloroform 21.5 20.0 108 19.6 20.0 98 68-132 10 30 <br /> Chloromethane 20.6 20.0 103 18.8 20.0 94 1-204 9 30 <br /> cis-1,2-Dichloroethene 21.7 20.0 109 20.0 20.0 100 82-121 8 30 <br /> cis-1,3-Dichloropropene 22.0 20.0 110 20.0 20.0 100 24-176 9 30 <br /> Dibromochloromethane 22.5 20.0 112 20.3 20.0 102 68-132 10 30 <br /> Dichlorodifluoromethane 23.8 20.0 119 21.7 20.0 109 68-164 9 30 <br /> Ethylbenzene 21.0 20.0 105 18.5 20.0 93 59-141 13 30 <br /> Total Xylenes 63.1 60.0 105 55.5 60.0 92 83-118 13 30 <br /> Methyl tert-Butyl Ether 43.5 40.0 109 40.1 40.0 100 68-119 8 30 <br /> Methylene Chloride 22.0 20.0 110 20.4 20.0 102 60-140 8 30 <br /> Tetrachloroethene(PCE) 19.8 20.0 99 17.4 20.0 87 74-126 .13 30 <br /> Toluene 21.0 20.0 105 18.5 20.0 93 74-126 13 30 <br /> trans-1,2-Dichloroethene 20.6 20.0 103 18.7 20.0 94 70-130 10 30 <br /> trans-l,3-Dichloropropene 20.9 20.0 104 19.2 20.0 96 50-150 8 30 <br /> Trichloroethene(TCE) 23.1 20.0 116 19.8 20.0 99 66-134 15 30 <br /> Trichlorofluoromethane 16.5 20.0 82 16.5 20.0 83 48-152 0 30 <br /> Vinyl Chloride 20.9 20.0 104 18.7 20.0 94 4-196 11 30 <br /> Results flagged with an asterisk(*)indicate values outside control criteria. <br /> Percent recoveries and relative percent differences(RPD)are determined by the software usinpl� 0,in the calculation which have not been rounded. <br /> Printed: 10/31/2006 09:16:06 Form 3C-Organic <br /> P:4STEALTMCRYSTAL.RPTTomi3DLC.rpt Page 1 of I <br /> Superset Reference: RR13177 <br />