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C\ +I 1 M <br /> OilLancaster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike PO Box 12425 Lancesler PA 176052425•717 556-2300 Fax 717-656-2681•www lancasterlabs com <br /> Page 1 of 2 <br /> Quality Control Summary <br /> Client Name ChevronTexaco c/o Cambria Group Number 934584 <br /> Reported 03/14/05 at 11 21 FM <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 Compl3.ance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result NDL Units %REC %REC Limits RPD RPD Max <br /> Batch number 05069AOBB Sample number(s) 4477870-4477871 <br /> TPH-GRO - Waters N D 50 ug/l 108 114 70-130 5 30 <br /> Batch number Z050703AA Sample number(s) 4477870-4477871 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 90 77-127 <br /> di-Isopropyl ether N D 0 5 ug/l 85 67-130 <br /> Ethyl t-butyl ether N D 0 5 ug/l 86 74-120 <br /> t-Amyl methyl ether N D 0 5 ug/l 88 79-113 <br /> t-Butyl alcohol N D 5 ug/1 B9 57-141 <br /> Oenzene N D 0 5 ug/1 91 85-117 <br /> 2-Dichloroethane N D 0 5 ug/l 97 77-132 <br /> Toluene N D 0 5 ug/l 93 65-115 <br /> Ethylbenzene N D 0 5 ug/l 94 82-119 <br /> Xylene (Total) N D 0 5 ug/l 94 83-113 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BXG DUP DUP Dup RPD <br /> Analysis Name %REC $REC Limits RPD b= Cone Cone RPD Max <br /> Batch number Z050703AA Sample number(B) 4477870-4477871 <br /> Methyl Tertiary Butyl Ether 93 92 69-134 1 30 <br /> di-Isopropyl ether 89 90 75-130 1 30 <br /> Ethyl t-butyl ether 92 91 78-119 1 30 <br /> t-Amyl methyl ether 90 89 77-117 1 30 <br /> t-Butyl alcohol 92 91 51-147 1 30 <br /> Benzene 98 96 63-128 1 30 <br /> 1,2-Dlchloroethane 104 102 73-136 2 30 <br /> Toluene 100 99 83-127 1 30 <br /> Ethylbenzene 103 101 82-129 2 30 <br /> Xylene (Total) 101 100 82-130 1 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 05069AOBB <br /> Trifluorotoluene-F <br /> 4477870 107 <br /> *-Outside of specification <br /> (1) The result for one or both determinations was less than five times the LOQ <br /> �(2) The background result was more than four times the spike added <br />