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Lancaster ' <br /> Laboratories Analysis Report <br /> 2425 New'Holland Pike,PO Bax 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.lancaster labs:corn ! <br /> Page 1 of 3 <br /> L !7 e <br /> ` Quality Control Summary <br /> Client. Name: ChevronTexaco Group Number: 926492 <br /> 11� Reported: 01/06/05 at 12:33 AM <br /> � 1 <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 i <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified in the <br /> method. <br /> I Laboratory Compliance Quality Control <br /> 't Blank Blank Report LCS LCSD LCS/LCSD <br /> i <br /> •. Analysis Name Result MDL Unite %RBC UEC Limits RPD RPD Max <br /> !. Satch'number: 04364A16B Sample number(s} : 4437897-4437900 1 <br /> TPH-GRO - Waters N.D. 50. ug/1 93 91 70-130 2 30 <br /> Batch number: Z050011AA Sample number(s) : 9437899-4437900 .} <br /> II. Ethanol.F N.D. 50. ug/1 92 46-145 <br /> Methyl Tertiary Butyl Ether N.D_ 0.5 ug/1 97 77-12.7 <br /> di-Isopropyl ether N,D. 0.5 ug/1 100 67-130 <br /> Ethyll't-butyl ether N.D. 0.5 ug/l 99 74-120 <br /> t-Amyl methyl ether <br /> ,� N.D. 0.5 ug/1 97 79-113 [� <br /> t-Butyl;;alcohol N.D. 5. ug/1 101 57-141 <br /> Benzene'; N.D. 0.5 ug/l 99 65-117 ) <br /> Toluene . N.D. <br /> i N.D. 0.5 ug/1 100 77-132 k <br /> N.D. 0.5 ug/1 100 85-115 <br /> 1.,2-Dibromoethane N.D. 0.5 ug/i 99 81-114 ' <br /> Ethylbenzene I N.D. 0.5 u9/1 101 82-119 <br /> Xylene (Total) N.D. 0.5 ug/1 98 83-113 <br /> +: Batch�;mimber: Z050021AA Sample number(s) : 4437897 , <br /> Ethanol .. t N.D. 50. ug/l 91 46-145 <br /> Methyl Tertiary Butyl Ether; N.D. 0.5 ug/1 96 77-127 i <br /> 1 di-Isopropyl ether N.D. 0.5 ug/1 100 67-130 1 <br /> Ethyl l-butyl ether N.D. 0.5 ug/1 98 79-120 <br /> t-Amyll methyl ether N.D. 0.5 ug/1 95 79-113 <br /> t-Butyl alcohol N.D. 5. ug/1 99 57-141 <br /> Benzene 6 N.D. 0.5 ug/l 101 BS-117 ! <br /> 1,2-❑i'chloroethane N.D. 0.5 ug/1 102 77-132 <br /> Toluene N.D. 0.5 ug/l 102 85-115 <br /> 1,2-Dibromoethanei . N.D. 0.5 ug/1 98 81-114 <br /> Ethylbenzene i - N.D. 0.5 ug/l 103 82-119 <br /> Xylene; (Total) ) i N.D. 0.5 ug/1 101 83-113 <br /> 1 Batch number: Z050031AA Sample number(s) : 4437898 1 <br /> Ethanol s N.D. 50. ug/l 92 46-145 <br /> E Methyl. Tertiary Butyl Ether , N.D_ 0.5 ug/l 97 .77-127 <br /> di-lsopropyl ether N.D. 0.5 ug/l 100 67-130 <br /> Ethyl ,t-butyl ether N.D. 0.5 ug/l 97 74-120 { <br /> t-Amyl methyl. ether N.D. 0.5 ug/1 97 79-113 I <br /> t-Butyl alcohol N.D. 5. ug/l 101 57-141 <br /> Benzene N.D. 0.5 ug/l 102 85-117 <br /> 1 2-Dichloroethane <br /> N.D. 0.5 ug/1 100 77-132 <br /> Toluene N.D. 0.5 ug/1 102 85-115 <br /> 1,2-Dibromoethane-� N.D. 0.5 ug/1 99 81-114 aI <br /> Ethylbenzene N.D. 0.5 ug/1 104 82-119 J <br /> Xylene (Total) N.D. 0.5 ug/1 102 83-113 <br /> *-Outside of specification a <br /> (1) The result for one or both determinations was less than five times the LOQ. I. <br /> (2) The background'result was more than four times the spike added. <br /> f <br /> Lr <br />