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ASSOCIATED LABORATORIES <br /> QA REPORT FORM- METHOD 8260 1 624 1 524 2 <br /> QC Sample MS/MSD-Water Samples 134905-690 <br /> Aosts Date Aug 24-04 <br /> Applies to LR 134905 <br /> Reporting Units= ug/L <br /> Matrix Spike 1 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 4974 5053 99 101 2 22 59-172 <br /> MTBE ND 50 4682 4940 94 99 5 24 62-137 <br /> Benzene ND 50 4752 4940 95 99 4 24 62-137 <br /> Tnehloroethene ND 50 5027 51 35 101 103 2 21 66-142 <br /> Toluene ND 50 4907 493.3 98 99 1 21 59-139 <br /> LCh�]�,-bnzene ND 50 48 18 4897 96 98 2 21 60-133 <br /> QC Sample LCS/LCSD <br /> Anaiysis Date Aug 24-04 <br /> Lab Controlled Spike/Lab Controlled Spike Duplicate <br /> Sample Spike LCS LCS %Rec %Rec QC Limits <br /> Result Added Spike Spk Dup LCS LCS D RPD RPD %REC <br /> 1,1-Dkchloroethene ND 50 5137 5l 15 103 102 0 22 59-172 <br /> MTBE ND 50 49 15 5002 98 100 2 24 62-137 <br /> Benzene ND 50 4967 4940 99 99 1 24 62-137 <br /> Tnchluroethene ND 50 5101 5201 102 104 2 21 66-142 <br /> Toluene ND 50 48 18 4929 96 99 2 21 59-139 <br /> Chlornhenzene ND 50 4902 4842 98 97 1 21 60-133 <br /> Method Blank—All ND <br /> SURROGATE ( QC Limits : 70-135 ) <br /> Compounds DBFM 1,2-DCA Tol-d8 p-BFB <br /> MS 97 87 101 101 <br /> MSD 100 99 100 99 <br /> LCS 99 103 99 101 <br /> LCSD99 103 102 102 <br /> BLANK# 1 100 112 98 104 <br /> BLANK#2 100 116 99 105 <br /> 813012004 8260 MSD-LCSD 0824 W2 <br />