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ASSOCIATED LABORATORIES <br /> a QA REPORT FORM-METHOD 8260/ 624/524.2 <br /> QC Sample MS/MSD-Water Samples 140939-680 <br /> Acis Date November 30,2004 103 AM <br /> Applies to LR 140554, 140555, 140906, 140939 <br /> Reporting Units= ug/L <br /> Matrix Spike/Matrix Sp>ke 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 4932 4899 99 98 1 22 59-172 <br /> MTBE 3877 50 8186 8181 86 86 0 24 62-137 <br /> Benzene ND 50 4577 4488 92 90 2 24 62-137 <br /> Trichloroethene ND 50 5511 4642 110 93 17 21 66-142 <br /> Toluene ND 50 5528 4719 111 94 16 21 59-139 <br /> Chlorobenzene ND 50 5544 4655 Ill 93 17 21 60-133 <br /> QC Sample LCS/LCSD 12 43 PM <br /> Analysis Date November 29,2004 <br /> Lab Controlled 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 %RFC <br /> IJ-Dechloroethene ND 50 4034 4571 81 91 12 22 59-172 <br /> MTBE ND 50 4488 4433 90 89 1 24 62-137 <br /> Benzene ND 50 4592 4639 92 93 1 24 62-137 <br /> Trichloroethene ND 50 5554 5669 111 113 2 21 66-142 <br /> Toluene ND 50 5439 5523 109 110 2 21 59-139 <br /> Chlorobenzene ND 50 5357 5426 107 109 1 21 60-133 <br /> Gasoline ND 1 1,000 L 688 655 69 66 57f 20 NA <br /> Method Blank=All ND <br /> SURROGATE (QC Limits : 70-135 ) <br /> Compound MBI MB 2 MS MSD LCS LCSD <br /> DBFM 97 97 100 96 101 99 <br /> ift 1,2-DCA 118 121 108 102 109 107 <br /> Tol-d8 124 101 116 96 111 114 <br /> p-BFB 99 99 101 104 101 100 <br /> 12/612004 8260 MSD-L CSD 1130 W <br />