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a <br /> ASSOCIATED LABORATORIES <br /> LCS REPORT FORM <br /> QC Sample LCS 1 LCSD water samples <br /> Method 8260/624 <br /> Analysis Date 09/20/01 <br /> Applies to LR 79779 <br /> REPORTING UNITS = ug/L <br /> I ab Controlled Spike 1 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 I Dichloroethene ND 500 4541 4771 91 95 22 59 172 <br /> MTBE ND 500 5035 4992 101 100 1 24 62 137 <br /> Benzene ND 500 4477 4702 A) 94 5 24 62 137 <br /> Tnchloroethene ND 500 50 03 5209 100 104 4 11 21 1 66-142 <br /> Toluene ND 500 51 23 5308 102 106 4 21 59 139 <br /> Chlorohenzene ND 500 5927 58 95 1 1 19 118 1 21 60 133 <br /> ND=Not Deiecied <br /> RPD=Relaine Percent Difference of LCS and LCS Dup <br /> %REC MS&MSD=Percent Recoven of LCS&LCS Dup <br /> • Method Blank=All ND <br /> 9/2512001 8200 Icsd 0920w <br />