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I <br /> I 'r <br /> Lancaster r <br /> (kr <br /> Laboratories Anallis .Report r <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 176052425•717-656-2300 Fax:717-656-2681•www.lancasterlabs.com <br /> { f <br /> Page 1 of 5 <br /> r <br /> Quality Control Summary <br />} Client Name,: ChevronTexaco Group Number: 921914 ;3 ` <br /> Reported: 12/06/04 at 05:36 PM t <br /> . } <br /> Matrix QC may not be reported if site-specific QC samples were not I <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 3 <br /> } <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units 96REC %REC Limits RPD RPD Max <br /> i <br /> Batch number: 04326A16B Sample number(s) : 4411943-4411946 ,. <br /> TPH-GRO - Waters N-D. 50. ug/l 97 196 70-130 1 30 <br /> Batch number: .043270025A Sample number(s) : 4411944-4411953 <br /> Methanol (by Direct Injection) N.A. 1000. ug/1 104 76-119 i <br /> Batch number: �04327A16A Sample number(s) : 4411947-4411953 <br /> TPH-GRO - Waters N.D. 50. u9/1 100 ;100 70-130 1 30 <br /> ch number: 2043342AA Sample number(s) 4411943 <br /> E <br /> C <br /> hyl Tertiary' Butyl Ether N.D. 2. ug/1 87 77-127 <br /> nzene N.D. .-5 Ug/l 90 85-1'17 <br /> Toluene N.D. .5 ug/1 93 85-115 <br /> Ethylbenzene N.D. -5 ug/3 92 82-119 <br /> Xylene (Total). , N.D. .5 ug/1 92 83-113 <br /> Batch number: -.Z043361AA Sample number(s) : 4411944-4411951 <br /> Ethanol N.D. 500. ug/1 98 46-145 <br /> Methyl Tertiary Butyl Ether N.D. 2- ug/1 88 77-127 <br /> di-Isopropyl ether. N.D. 2. ug/1 90 67-130 <br /> Ethyl t-butyl ether N.D. 2. ug/1 89 74-120 <br /> t-Amyl methyl ether N.A. 2. ug/1 90 79-113 <br /> t-Butyl alcohol N.D. 100. ug/1 86 57-141 <br /> Benzene zN.D. .5 u9/1 91 85-117 <br /> 1,2-Dichloroethane N.D. 2. ug/1 95 77-132 <br /> Toluene N.D. .5 ug/1 93 85-115 I <br /> 1,2-Dibromoethane N-D. 2. ug/1 92 a 81-114 <br /> Ethylbenzene N.D. .5 ug/l 93 F, 82-119 <br /> xylene (Total) N.D. .5 ug/1 93 83-113 1 <br /> J <br /> Batch number: '2043371AA Sample number(s) : 4411952-4411953 <br /> Ethanol N.D. 500, ug/1 98 46-145 <br /> Methyl Tertiary Butyl Ether N.D. 2. ug/1 89 77-127 <br /> di-Isopropyl ether N.D. 2. ug/1 B9 i 67-130 <br /> Ethyl t-butylether N.D. 2. u9/1 89 74-120 <br /> Eir <br /> t-Amyl methyl ether N.D. 2. u9/1 90 79-113 <br /> t-Butyl alcohol N.D. 100- ug/l 85 57-141 <br /> Benzene N.D. .5 ug/1 91 85-117 F <br /> 1,2-Dichloroethane N.D. 2. ug/1 94 77-132 k <br /> Toluene N.D. .5 ug/1 91 85-115 <br /> 1,2-Dibromoethane N.D. 2. ug/l 90 81-114 <br /> Ethylbenzene N.D. .5 ug/l 92 82-119 <br /> Xylene (Total); N.D. .5 ug/l 92 83-113 <br /> I <br /> *-Outside of specification <br /> (l) 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. y <br /> k <br />