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ASSOCIATED LABORATORIES <br /> LCS REPORT FORM-METHOD 8260/624/524 2 <br /> QC Sample LCS/LCSD-Water Samples <br /> A0 Date 11/23/02 <br /> Applies to LR 102404,102325, 102459 <br /> Reporting Umts= ug/L <br /> Lab Controlled Spike/Lab Controlled Spike Dupheate <br /> Sample Spike LCS LCS %Rec %Rec QC Limits <br /> Test Result I Added Spike Spk.Dup LCS LCS D RPD RPD %REC <br /> I I-Dichloroethene ND 50 4963 5045 99 101 2 22 59-172 <br /> MTBE ND 50 5474 5433 109 109 1 24 62-137 <br /> Benzene ND 50 5054 4862 101 97 4 24 62-137 <br /> Trichloroethene ND 50 1 5214 5017 104 100 4 11 21 66-142 <br /> Toluene ND 50 4707 4601 94 92 2 21 59-139 <br /> Chlorobenzene ND 50 4559 4665 91 93 2 21 60-133 <br /> QC Sample LCS#1 12 39 PM <br /> Analysts Date 11/22/02 <br /> LCS RECOVERY 1 METHOD BLANK <br /> Sample Spike LCS %Rec QC Limits <br /> Test Result Added Spike LCS %REC <br /> I t Dtchlatoethene ND 50 5169 103 59-172 <br /> MTBE ND 50 5348 107 62-137 <br /> ND 50 5028 101 62-137 <br /> Tn thene ND 50 5028 101 66-142 <br /> Toluene ND 50 4776 96 59-139 <br /> Chlorobenzene ND 50 4697 94 60-133 <br /> QC Sample LCS#2 10 55 PM <br /> Analysis Date 11/22/02 <br /> LCS RECOVERY 1 METHOD BLANK <br /> Sample Spike LCS %Rec QC Ltmtts <br /> Test Result Added Spike LCS %REC <br /> 1 I Mchloroethene ND 50 5005 100 59-172 <br /> MTBE ND 50 5472 109 62-137 <br /> Benzene ND 50 4754 95 62-137 <br /> Trichloroethene ND 50 5185 104 66-142 <br /> Toluena ND 50 4966 99 59-139 <br /> Chlorobenzene ND 50 4667 93 60-133 <br /> Method Blank—All ND <br /> SURROGATE(QC Limits 70-135) <br /> Compounds DBFM 1,2-DCA Tot-d8 p-BFB <br /> LCS 102 103 100 101 <br /> Lq& 103 104 99 100 <br /> BLANK#1 103 106 102 106 <br /> BLANK#2 105 105 104 106 <br /> LCS 4 1 103 104 101 101 <br /> GCS#2 101 102 103 104 <br /> 121312007 8160 lcsd--lcs 1123w1 <br />