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ASSOCIATED LABORATORIES <br /> LCS REPORT FORM-METHOD 8260/624/524 2 <br /> QC Sample LCS/LCSD-Water Samples <br /> A�s Date 05/21/02 <br /> App'.to LR 92843 92775 <br /> Reporting Units= ug/1- <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 %REC <br /> 1 I Dichlomethene ND 50 4250 4379 85 88 3 22 59-172 <br /> MTBE ND 50 3227 3371 65 67 4 24 62-137 <br /> Benzene N D 50 4263 4795 85 96 12 24 62-137 <br /> Trichloroethene ND 50 4864 5245 97 I05 8 21 66-142 <br /> Toluene ND 50 4362 45 81 87 92 5 21 59-139 <br /> Chlarolxnzene ND 50 4257 4601 1 85 92 8 21 60-133 <br /> QC Sample LCS#1, 11 40 am <br /> Analysts Date 05/21/02 <br /> LCS RECOVERY/METHOD BLANK <br /> Sample Spike LCS %Rec �QCLitntts. <br /> Test Result Added Spike LCS %REC <br /> I I Diehloroethene ND 50 4920 98 59-172 <br /> MTBE ND 50 3527 71 62-137 <br /> Benzene ND 50 4401 88 62-137 <br /> T thene ND 50 5147 103 66-142 <br /> Toluene ND 50 4541 91 59-139 <br /> Chlorobenzette ND 50 4811 96 60-133 <br /> Method Blank=All ND <br /> SURROGATE <br /> QC LIMIT 70 135 DBFM 1 2-DCA To]-d8 p-BFB <br /> LCS 89 103 98 98 <br /> LCSD 90 103 101 108 <br /> BLANK# 1 88 102 95 101 <br /> LCS# 1 92 105 99 99 <br /> 512 i/02 8260 tesd Ics 0521 w1 x1s <br />