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ASSOCIATED LABORATORIES <br /> r QA REPORT FORM-METHOD 8260 1 624/524.2 <br /> QC'Sample MS/MSD-Water Samples 140904-556 <br /> Asis Date November 30,2004 3 45 PM <br /> Applies to LR 140904, 140924, 140906, 140939, 140720, 140916 <br /> Reporting Units= ug/L <br /> Matrix Spike/Matrix Spike Duplicate <br /> sample Spike j Matrix Matrix %Rec %Rec QC Limits <br /> Test Result Added Spike Spk Dup. MS MSD RPD RPD %REC <br /> ],I-Dichloroethene ND 25 2393 2129 96 85 12 22 59-172 <br /> MTBE ND 25 2044 2010 82 80 2 24 62-137 <br /> Benzene 4963 25 6503 6583 62 65 1 24 62-137 <br /> Tnehloroethene ND 25 23 11 2375 92 95 3 21 66-142 <br /> Toluene 281 25 2524 2488 90 88 1 21 59-139 <br /> Chlorobenzene ND 25 2266 2327 91 93 3 21 60-133 <br /> QC Sample LCS/LCSD 1 25 PM <br /> Analysis Date November 30,2004 <br /> La Controlled Spike/Lab Controlled Spike Duplicate <br /> Sample Spike LCS LCS %Rec %Rec QC Lrmtts <br /> Test Result Added Spike Spk Dup LCS LCSD RPD RPD %REC <br /> 1,1-Dichloroethene ND 50 5126 4478 103 90 13 22 59-172 <br /> MTBE ND 50 4841 4484 97 90 8 24 62-137 <br /> Benzene ND 50 4949 4544 99 91 9 24 62-137 <br /> Tnehloroethene ND 50 5080 4764 102 95 6 21 66-142 <br /> Toluene ND 50 4987 4744 100 95 5 21 59-139 <br /> Chlorobenzene ND 50 4980 4699 100 94 6 21 60-133 <br /> Gasoline ND 1,000 678 706 68 71 4 20 NA <br /> Method Blank=All ND <br /> SURROGATE (QC Limits : 70-135) <br /> Compound MB 1 MS MSD LCS LCSD <br /> DBFM 97 97 98 99 99 <br /> 1,2-DCA 125 78 78 108 108 <br /> Tot-d8 101 97 98 99 100 <br /> p-BFB 102 104 104 100 105 <br /> 121612004 8260 MSD-LCSD 1130 WI <br />