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ASSOCIATED LABORATORIES <br /> LCS REPORT FORM-METHOD 8260 1 624/524 2 <br /> QC Sample LCSILCSD-Water Samples <br /> *is Date Y' 05/31/03 8 20 AM <br /> Applies to LR 111250, 11 1319, 111 122, 111202, 11 1308, 111481, 1 11476, 111319 <br /> Reporting Units= ug/L, <br /> Lab Controlled Spike 1 Lab Controlled Spike Duplicate <br /> Sample Spike LCS LCS I %Rec %Rec QC Limrts <br /> Test Result I Added Spike Spk Dupj LCS LCS D RPD RPD %REC <br /> 1 1-Dichloroethene ND 50 5658 5246 113 105 8 22 59-172 <br /> MTBE ND 50 4595 4852 92 97 5 24 62-137 <br /> Benzene ND 50 5062 4967 101 99 2 24 62-1.37 <br /> Tnchloroethene ND 50 5107 4803 102 96 6 1 21 66-142 <br /> Toluene ND 50 5121 4677 102 94 9 21 59-139 <br /> Chlorobenzene ND 50 49 42 47 72 99 95 4 21 60-133 <br /> QC Sample LCS/LCSD Water#2 9 38 PM <br /> Analysts Date 05/31/03 <br /> Lab Controlled Spike 1 Lab Controlled Spike Duplicate <br /> Sample Spike LCS LCS %Rec %Rec QC Llmlts <br /> Test -T Result Added Spike Spk Dup LCS LCS D RPD RPD %REC <br /> 1 1-Dichloroethene ND 50 4276 4893 86 98 13 22 59-172 <br /> MTBE ND 50 4301 5032 86 101 16 24 62-137 <br /> e ND 50 4621 5676 92 114 20 24 62-137 <br /> Tnchloroethene ND 50 4831 5785 97 116 18 21 66-142 <br /> Toluene ND 50 4502 5198 90 104 14 21 59-139 <br /> Chlorobenzene ND 50 43 12 T-5347 86 107 21 21 60 133 <br /> QC Sample LCS#1 12 24 PM <br /> Analysts Date 05/30/03 <br /> LCS RECOVERY 1 METHOD BLANK <br /> Sample Spike LCS i %Rec QC Limits <br /> Test Result I Added Spike LCS %REC <br /> 1,1-Dichloroethene ND 50 5979 120 59-172 <br /> MTBE ND 50 4916 98 62-137 <br /> Benzene ND 50 5542 111 62-137 <br /> Tnchloroethene ND 50 5514 11U 66-142 <br /> Toluene ND 50 5512 110 59-139 <br /> Chlorobenzene ND 50 54 29 109 60-133 <br /> Method Blank=All ND <br /> SURROGATE(QC Limits 70-130) <br /> Compound LCS LCSD LCS LCSD <br /> LCS 1 MB 1 MB 2 MB 3 water water water#2 water#2 <br /> ofluoromethane 97 93 93 92 98 99 102 49 <br /> 1,2-Dtchloroethane-d4 90 130 122 118 89 95 101 95 <br /> Toluene-d8 99 103 103 105 102 97 101 97 <br /> p-Bromofluombenzene 97 106 102 103 101 99 102 98 <br /> 61912003 8260 lcsd lcad 0S31w1 <br />