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ASSOCIATED LABORATORIES <br /> QA REPORT FORM -METHOD 8260 1 624 /524.2 <br /> QC Sample MS/MSD-Water Samples 140258-243 <br /> Osis Date November 18,2004 4 53 PM <br /> Applies to LR 140258, 140265, 140314, 140201, 140257, 140311 <br /> Reporting Units= ug/L <br /> Matrix Spike/Matrix Spike Duplicate <br /> Sample Spike Matrix Matrix %Rec %Rec QC Limits <br /> Test Result Added Spike Spk Dup MS MSD RPD RPD %REC <br /> 1,1-Dichloroethene ND 50 5658 5647 113 113 0 22 59-172 <br /> MTBE 1369 50 6101 6379 95 100 4 24 62-137 <br /> Benzene ND 50 54 99 54 60 110 109 I 24 62-137 <br /> Tnehloroethene ND 50 4948 4976 99 100 1 21 66-142 <br /> Toluene 3 15 50 5135 5403 96 102 5 21 59-139 <br /> Chlorobenzene ND 50 4973 5143 99 103 3 21 60-133 <br /> QC Sample LCS/LCSD 1 45 PM <br /> Analysis Date November 18,2004 <br /> TANNIContralled Spike/Lab Controlled Spike Duplicate <br /> Sample Spike LCS LCS %Rec %Rec QC Limits <br /> Test Result Added Spike Spk Dup. LCS LCS D RPD RPD %REC <br /> 1,1-Dichloroethene ND 50 5923 5791 118 116 2 22 59-172 <br /> MTBE ND 50 5587 5239 112 105 6 24 62-137 <br /> Benzene ND 50 5577 5548 112 111 1 24 62-137 <br /> Tnehloroethene ND 50 5191 5251 104 105 1 21 66-142 <br /> Toluene ND 50 54 13 5708 108 114 5 21 59-139 <br /> Chlorobenzene ND 50 5306 55 14 106 110 4 21 60-133 <br /> Method Blank=All ND <br /> SURROGATE ( QC Limits : 70-135 ) <br /> Compound MB 1 MB 2 MS MSD LCS LCSD <br /> DBFM 96 95 104 102 107 101 <br /> 1,2-DCA 107 106 105 104 106 105 <br /> Tol-d8 96 102 96 94 99 98 <br /> p-BFB 108 106 102 102 95 98 <br /> 12/2/2004 8260 MSD-LCSD 1118 W <br />