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LancasterAnalysis Report <br /> Laboratories Y <br /> 2425 New holland Pike,PO Baz 12425,Lancaster,PA 176052425•717-656-2300 Fax:717-656x2681•www.(ancasterlabs.com <br /> Page l of 4 <br /> Quality Control Summary <br /> Client Name: ChevronTexaco Group Number: 969309 <br /> Reported: 12/13/05 at 11:08 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 LCSILCSD was performed,unless otherwise specified in the <br /> method. <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MAL Units %REC %REC Limit$ RPD RPD N <br /> Batch number: 053350017A Sample number(s) : 4659272-4659278 <br /> Total TPH N.D. 40. ug/l 75 73 57-115 3 20 <br /> TPH Motor Oil C16-C36 N.D. 40. ug/l <br /> Batch number: OS3360011A Sample number(s) : 4659272-4659278 <br /> TPH - DRO CA LUFT (Waters) N.D. 50. ug/l 89 88 49-120 1 20 <br /> Batch number: 05341A56A Sample number(s) : 4659271-4659277 <br /> TPH-GRO - Waters N.D. 50. ug/l 100 100 70-130 0 30 <br /> Batch number: 053460025A Sample number(s) . 4659272-4659278 g0-120 <br /> Methanol (by Direct Injection) N.D. 200. ug/l 100 <br /> Batch number: 05346A53A Sample niamber(s) : 4659278 <br /> TPH-GRO - Waters N.D. 50. ug/l 98 104 70-130 6 30 <br /> �Batch�numbenz: Z053391AA - - - Sample number(s) : 4_659271-4.6.59272 30-155 - <br /> Ethanol N.D. 50, ug/1 11`3 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 90 77-127 <br /> di-Isopropyl ether N.D. 0.5 ug/1 89 67-130 <br /> Ethyl t-butyl ether N.D. 0.5 ug/l 89 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/l 92 79-113 <br /> 60-133 <br /> t-Butyl alcohol N.D. S. ug/l 93 85-117 <br /> Benzene N.D. 0.5 ug/l 93 <br /> 1,2-Dichloroethane N.A. 0.5 ug/I 93 77-132 <br /> Toluene N.D. 0.5 ug/l 94 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/l 86 81-114 <br /> Ethylbenzene N.D. 0.5 ug/l 94 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 97 83-113 <br /> Batch number: Z053411AA Sample number(s) : 4659273-4659278 3q_155 <br /> Ethanol N.D. 50. ug/1 112 77-127 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 90 <br /> 67-130 <br /> di-Isopropyl ether N.D. 0.5 ug/1 83 <br /> Ethyl t-butyl ether N.D. 0.5 ug/ 85 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/1 89 79-113 <br /> t-Butyl alcohol N.D. 5. ug/1 91 60-133 <br /> Benzene N.D. 0.5 ug/l 91 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 92 77-132 <br /> Toluene N.D_ 0.5 ug/l 93 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/l 84 81-114 <br /> Ethylbenzene N.D. 0.5 ug/l 92 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 97 83-113 <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 />