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J <br /> i <br />{ Lancaster <br /> Laboratories Analysis Report <br /> 2425 New Hotland Pike.PO Box 12425,Lancaster.PA 17605-2425.717-656-2300 Fax:717-656-2681•www.lancaslerlabs.com <br /> Pagel of2 <br /> Quality Control Summary � <br /> Client; Name: ChevronT6xaco Group Number: 921768 { <br /> Reported: 12/01/04 at ,111:05 AM <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/LCSb was performed,unless otherwise specified in the <br /> method. <br /> Laboratory Compliance Quality Control <br /> F • I , <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MAL Units %REC %REC Limits RPB APD Max <br /> Batch number: 04327A16A '� Sample number(s) : 4411033-4411036 <br /> TPH-GR -0 Waters N.D. 50. ug/1 100 1Do 70-130 1 30 <br /> i Lp <br /> Batch 'number: Z043352AA 1 Sample number(s) ; 4411033-4411036 <br /> Ethanol d N.D. 50" ug/l 76 46-145 <br /> Methyl Tertiary Butyl Ether,l N.D. 0.5 ug/l 86 77-127 <br /> t di-Isopropyl ether I N.D. 0.5 ug/l 81 67-130 <br /> Ethyl -t-butyl ether It N.D. 0.5 ug/l 85 74-120 <br /> t-Amyl methyl ether j N.D- 0.5 ug/1 87 79-113 <br /> t-Butyl alcohol N.D. 5, u9/1 72 57-141 <br /> J <br /> Benzene . N.D. 0.5 ug/l 87 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 95 77-132 <br /> i Toluene y N.D- 0.5 ug/l 91 85-115 <br /> f 1,2-Dibromoethane I N-D. G.5 ug/l 89 81-114 <br /> t Ethylbenzene N-D. 0.5 ug/l 91 82-119 <br /> Xylene (.Total) N.D. 0.5 ug/1 91 83-113 <br />} <br /> I � <br /> Sample Matrix Quality Control <br /> u <br /> MS MSD MS/MSD RPD BRG DUP PUP Dup RPD .{ <br /> Analysis Name t %REC JREC Limits RPD MAX Cone Cone RPD Max I <br /> Batch number: 04327A16A Sample number(s) : 4411033-4411036 <br /> TPH-GRO - Waters 9 95 63-154 <br /> lrF� <br /> Batch number: Z043352AA Sample number(s) : 4411033-4411036 <br /> Ethanol 92 93 33-153 1 30 <br /> Methyl'Tertiary Butyl Ether' 89 88 69-134 1 30 <br /> di-Isopropyl ether 82 83 75-130 1 30 <br /> Ethyl t-butyl ether 87 86 78-119 l 30 <br /> t-Amyl. methyl ether 88 87 77-117 1 30 <br /> t-Butyl alcohol 72 75 51-147 3 30 <br /> Benzene I 93 93 83-128 0 30 <br /> 1,2-Dichloroethane I 100 99 73-136 1 30 <br /> Toluene . I 95 96 83-127 1 30 <br /> 1,2-Dibromoethane i 91 90 78-120 1 30 <br /> Ethylbenzene 94 95 82-129 1 30 11 <br /> Xylene. (Total) 84 85 82-130 1 30 <br /> - i <br /> I ,1 <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 /> .) IS <br /> 1 <br />