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ASSOCIATED LABORATORIES <br /> LCS REPORT FORM-METHOD 8260/624/524 2 <br /> QC Sample LCS/LCSD- Water Samples <br /> is Date 03/01/02 <br /> Applies to LR 88710 <br /> Reporting Units= ug/L <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 /> I,1-Dichloroethene ND 50 3237 3278 65 66 1 22 59-172 <br /> MTBE ND 50 4692 4610 94 92 2 24 62-137 <br /> Benzene ND 50 45 11 4325 90 87 4 24 62-137 <br /> Trichloroethene ND 50 5119 5054 102 101 1 21 66-142 <br /> Toluene ND 50 1 4493 4709 90 94 5 21 59-139 <br /> Chlorobenzene ND 50 4700 4623 94 92 2 21 60-133 <br /> QC Sample LCS/LCSD- Water Samples <br /> Analysis Date 03/01/02 <br /> Lab Controlled Spike/Lab Controlled Spike Duplicate <br /> Sample Spike LCS LCS %Rec %Rec QC Limits <br /> "Fest Result Added Spike Spk.Dup LCS LCS D RPD RPD %REC <br /> l l Dichloroethene ND 50 3374 3484 67 70 3 22 59-172 <br /> MTBE ND 50 4692 4747 94 95 1 24 62-137 <br /> Benzene ND 50 4309 4474 86 89 4 24 62-137 <br /> Trichloroethene ND 50 4967 '49 95 99 l00 l 21 66-142 <br /> ND50 4672 4866 93 97 4 21 59-139 <br /> benzene ND:± 50 4684 4647 94 93 1 21 60-133 <br /> QC Sample LCS# 1 <br /> Analysts Date 02/28/02 <br /> LCS RECOVERY ! METHOD BLANK <br /> Sample Spike LCS %Rec QC Limits <br /> Test Result Added Spike LCS %REC <br /> 1 Dichloroethene ND 50 2655 53 59-172 <br /> MTBE ND 50 4724 94 62-137 <br /> Benzene ND SO 4589 92 62-137 <br /> Trichloroethene ND 50 5003 100 66-142 <br /> Toluene ND SO 4817 96 59-139 <br /> Chlorobenzene ND 50 4676 94 60-133 <br /> Method Blank=All ND <br /> *Outside QC Limits <br /> SURROGATE <br /> QC LIMIT 70-135 D13FM 1,2-DCA Told8 p-BFB <br /> LCS 84 105 105 105 <br /> LCSD 83 106 105 105 <br /> BLANK#1 114 105 107 104 <br /> K#2 107 103 115 106 <br /> 1 86 105 107 102 <br /> LCS 80 102 102 106 <br /> LCSD 80 i05 109 102 <br /> BLANK#2 107 103 115 106 <br /> 3/11/2002 8260 lcsd lcsd 0301w <br />