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,r-) J <br /> . <br /> LancasterAnalysis Report <br /> Laboratories Y <br /> 2425 New Hoflend Pike PO Box 12425 Lancaster PA 17605-2425•717 656-2300 Fax 17-656-2681•www lancasterlabs com <br /> Page 1 of 3 <br /> I <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 965271 <br /> Reported 11/09/05 at 01 51 PM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted In these situations,to demonstrate precision and accuracy at <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified in the <br /> method <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD RPD RPD Max <br /> Anal sib Name Result IdDL Units %REC %REC Limits <br /> Batch number 05304A07A Sample number(s) 4635952-465955 109 70-130 10 30 <br /> TPH-GRO - Waters N D 50 ug/1 1 99 <br /> Batch number 05304A0BA sample number(s) 4635956-4670-130 3 30 <br /> TPH-GRO - Waters N D 50 ug/l , 109 112 <br /> k <br /> Batch number Z053052AA Sample number(s) 4635952 77-127 <br /> Me hyl Tertiary Butyl Ether N D D 0 5 ug/l 104 85-117 <br /> ne 0 5 ug/l Be 85-115 <br /> ne N D 0 5 ug/l 91 82-119 <br /> E lbenzene N D 0 5 ug/l 91 83-113 <br /> Xylene {Total) N D 0 5 ug/l 91 <br /> Batch number Z053091AA Sample number(s) 4635953-4635962 98 30-155 <br /> Ethanol <br /> N D U0u5 ug�l 106 77-127 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug /1 87 67-130 <br /> di-Isopropyl ether N D 0 5 u9/1 90 74-120 <br /> Ethyl t-butyl ether N D 0 S ugJl 94 79-113 <br /> t-Amyl methyl ether N D 5 ug/l 92 60-133 <br /> t-Butyl alcohol N D 0 5 ug/l 91 85-117 <br /> Benzene N D 0 5 ug/l 90 85-115 <br /> Toluene N D 0 5 ug/l 92 82-119 <br /> Ethylbenzene N D 0 5 ug/l 96 83-113 <br /> Xylene (Total) <br /> Sample Matrix Quality Control <br /> ms MSD MS/HSD RPD BKG DUP DUP Dup RPD <br /> Analysis Name %REC %REQ Limits RPD MAX Colic Conc RPD Max <br /> Batch number 05304A07A 103 63-154 number(s) <br /> 4635952-4635955 <br /> TPH-GRO - Waters <br /> Batch number G5304AOSA Sample 1mber(536 6 46 5956-263596 30 <br /> T 139 PH-GRO - Waters <br /> Batch number Z053052AA sample number(s) 4635952 <br /> Methyl Tertiary Butyl Ether 110 110 69-134 1 30 <br /> Benzene 92 94 B3-128 2 30 <br /> Toluene 97 98 83-127 2 30 <br /> Ethylbenzene 99 100 82-129 2 30 <br /> 97 101 82-130 3 30 <br /> Xylene (Total) <br /> *-Outside of specification <br /> The result for one or both determinations was less than five times the LOQ <br /> The background result was more than four times the spike added <br />