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ASSOCIATED LABORATORIES <br /> QA / QC EPA Methods 8260, 624, & 524.2 - GCMS # 3 <br /> • Sample ID MS/MSD-water sample 155173-127 <br /> Date Analyzed August 16, 2005 10.56pm <br /> Sample Matrix: water <br /> Units: pg/L <br /> Applies to LR: 155041, 155140, 155173, 155182 <br /> Sample Spike Spike Dup Spike Dup QC Limits <br /> Compound Conc Added Res Res % Rec % Rec RPD RPD % Rec <br /> 1,1-Dichloroethens 000 500 6289 5315 106 106 0 22 59 - 172 <br /> MTBE 4395 500 9695 9604 106 104 2 24 62 - 137 <br /> Benzene 000 500 5417 5291 108 106 2 24 62 - 137 <br /> Trichloroethene 000 500 50 01 L48 43 100 97 3 21 . 66 - 142 <br /> Toluene 000 500 5344 5351 107 107 0 21 159 - 139 <br /> Chlorobenzene 000 500 5236 5350 105 107 2 21 160 - 133 <br /> Sample ID: LCS - water <br /> Date Analyzed August 16, 2005 1 :52pm <br /> Sample Matrix water <br /> Units pg/L <br /> Sample Spike Spike Spike QC Limits <br /> Com ound Conc Added Res % Rec RPD I % Rec <br /> 1,1-Dichioroethene 000 500 5805 116 22 59 - 172 <br /> MTBE 000 500 5588 112 24 62 - 137 <br /> Benzene 000 500 58 22 116 24 62 - 137 <br /> Trichloroethene 000 500 5502 110 21 66 - 142 <br /> Toluene 000 500 58 79 118 21 59 - 139 <br /> Chlorobenzene 000 500 5951 119 IL 21 J 60 - 13:311 <br /> Surrogate Recovery GCMS # 3 <br /> Limits <br /> Compound M131 M132MS MSD LCS % Rec <br /> Dibromofluoromethane 94 97 96 99 99 70-135 <br /> 1,2-Dichloroethane-d4 105 109 95 98 94 70-135 <br /> Toluene-d8 102 101 101 102 100 70-135 <br /> p-Bromofluorobenzene 100 103 96 97 100 70-135 <br /> 8260LB <br /> 08 <br />