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Associated Laboratories <br /> QA 1 QC EPA Methods 8260, 624, & 524 2 = GCMS # 4 <br /> Sample ID- MS/MSD-water sample , 160602-221 , • <br /> Date Analyzed. November 30, 2005 i 8 17pm <br /> Sample Matrix: water <br /> Units. pg/L <br /> Applies to LR 160554, 160602, 160280, 160485, '160594 <br /> Sample Spike Spike Dup Spike Dup QC Limits <br /> IlCompound Conc. I Added I Res I Res I % Rec I % Rec I RPD _11RPD % Rec <br /> 1,1-Dichloroethene 000 500- 58 11 5705 116 114 r-2- - 22 _ -59 - 172 <br /> MTBE 000 500 52 35 5434 105 109 4 24 62 - 137 <br /> Benzene 000 500 51 84 52 60 104 105 1 24 62 - 137 <br /> Trichloroethene 000 50 0 64'47 5222 109 104 4 21 66 - 142 <br /> Toluene 000 500 51 05 49 82 j 102 T100 2 21 59 - 139 <br /> Chlorobenzene 000 500 49 13 47 73 1 98 1 95 3 21 160 - 133 <br /> * <br /> =Outside QC limits due to high concentration in sample <br /> Sample ID- LCS. - water - <br /> Date Analyzed: November 30, 2005 3 37pm <br /> Sample Matrix. water <br /> Units. pg/L <br /> Sample Spike Spike Spike QC Limit <br /> Compound Conc Added Res % Rec RPD % Re <br /> 1,1-Dichloroethene 000 500 5678 114 22 59 - 17297 <br /> MTBE - - - -0 00 -50 6- 49 51- T- - -= '!99 T-- - -Y 24-- 62 - 137 - <br /> --- Benzenes —O 00� ---50 O� -49 91< - - x-10024�-- -62 - 137 <br /> Trichloroethene 0 00 50 0 52 85 106 21 66 - 142, <br /> Toluene 000 50 0 49 02 1 98 21 59 - 139 <br /> Chlorobenzene 0 00 50 0 47 89 1 96 1 21160 - 1331. <br /> IF Sample Result>4 tunes Spike Added,then"NC" <br /> Surrogate Recovery GCMS # 4 <br /> L - Limits <br /> Compound M131 M62 MS MSD LCS % Rec <br /> Dibromofluoromethane 106 101 104 107 101 70-135 <br /> 1,2-Dichloroethane-d4 113 115 115 116 101 70-135 <br /> Toluene-d8 102 102 101 100 99 70-135 <br /> Bromofluorobenzene 105 103 100 98 1 96 70-135 <br /> 8260LB_11 <br />