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ASSOCIATED LABORATORIES <br /> LCS REPORT FORM -ME'T'HOD 82601624/524 2 <br /> QC Sample LCS/LCSD-Water Samples <br /> As Date 05/21/02 <br /> Applies to LR 92843 92775 <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 /> 1 1 Dichloroethene ND 50 5247 5720 105 114 9 22 59-172 <br /> MTBE ND 50 1 4063 4209 81 84 4 24 62-137 <br /> Benzene ND 50 4925 53 10 99 106 8 24 62-137 <br /> Tnchloroethene ND 50 5789 55 83 116 I 12 4 21 66-142 <br /> Toluene ND 50 5125 51 11 103 102 0 21 59-139 <br /> Chlorobenzene ND 50 5207 5202 104 104 0 21 60-133 <br /> QC Sample LCS# 1, 10 50 am <br /> Analysis Date 05/20/02 <br /> LCS RECOVERY!METHOD BLANK <br /> Sample Spike LCS %Rec QC Limits <br /> Test Result Added Spike LCS %REC <br /> I t Dichloroethcne ND 50 4497 90 59-172 <br /> MTBE ND 50 3739 75 62-137 <br /> Benzene ND 50 4839 97 62-t37 <br /> Ti ene ND 50 50 14 100 66-l42 <br /> Toluene ND 50 4S60 97 59-139 <br /> Chlorobenzene ND 50 4953 99 60-133 <br /> QC Sample LCS#2,9 40 pin <br /> Analysis Date 05/20/02 <br /> LCS RECOVFRY 1 METHOD BLANK <br /> Sample Spike LCS %Ree QC Limits <br /> Test Result i Added Spike LCS %REC <br /> 1 I Mchloroethene ND 50 6177 124 59-172 <br /> MTBE ND 50 3389 68 62-137 <br /> Benzene ND 50 5029 tot 62-137 <br /> Trichloroethene ND 50 5177 104 66-142 <br /> Toluene ND SO 5357 107 59-139 <br /> Chlorobearene ND 50 5028 101 60-133 <br /> Method Blank—All ND <br /> SURROGATE <br /> QC LIMIT 70 135 DBFM l 2-DCA Tot-d8 p-BFB <br /> LCS 93 105 101 103 <br /> LCSD 95 110 95 102 <br /> 13 #1 95 106 94 98 <br /> BLW#2 100 108 95 102 <br /> LCS# 1 101 104 98 98 <br /> LCS#2 96 113 98 109 <br /> 5123/02 8260 lcsa res 052!w xla <br />