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I <br /> Lancaster �� <br /> laboratories Q r�a 1 ys�s Rep„or# <br /> { <br /> 2425 New Holland Pike,PO Box 12425,Lancasler,PA 17605-2425•717-656-2300 Fax:717-656.2681•www.lancasterlabs.com I e <br /> Page 2 of 5 <br /> ' <br /> Quality Control Summary <br /> 4 Y ' <br /> Client Name: ChevronTexaco Group. Number: 947957 <br /> Reported: 06/29/05 at 10:16 PM { <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result N L Units %REC %REC Limits RPD RPD Max <br /> Ethylbenzene N.D. 5 ug/i 93 82-119 <br /> Xylene (Total) N.D. .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 MAX Cone Conc RPD Max <br /> Batch number: 051720027A Sample numberls_) : 4546312-4546321 <br /> ff Methanol (by Direct In3ection) 104 108 88-126 4 20 <br /> 1 Batch number: 05173A07A Sample number(s) : 4546312 <br /> TPH-GRO - Waters 118 63-154 <br />{ k <br /> is Batch number: 05173A07S Sample number(s) : 4546311,4546313-4546318 <br /> t_ TPH-GRO - 'Waters 118 63-154 # <br /> f !?--itch number: 05173A07C Sample number(s) : 4546319-4546321 � <br /> H-GPO Waters 118 63-154 i <br /> Batch number: `Z051732AA Sample number{sj 4546311 <br /> Methyl Tertiary Butyl Ether 85 86 69-134 2 30 <br /> Benzene 99 100 83-128 1 30 f <br /> Toluene 100103 83-127 3 30 <br /> Ethylbenzene 102 103 82-329 1 30 � <br /> Xylene (Total) 107 109 82-130 2 30 <br /> Batch number: Z051751AA Sample number(s) : 4546312-4546319 ' <br /> Ethanol 112 107 26-153 5 30 <br /> Methyl Tertiary Butyl'Ether 101 94 69-134 7 _ 30 <br /> di-Isopropyl ether 101 94 75-130 7 30 <br /> Ethyl t-butyl ether 103 95 78-119 8 30 <br /> t-Amyl methyl ether 104 97 77-117 8 30 * , <br /> t-Butyl alcohol 106 97 51-147 B 30 <br /> Benzene 106 99 83-126 7 30 <br /> 1,2-Dichlorcethane 101 95 73-136 6 30 <br /> Toluene 108 100 83-127 a 30 <br /> 1,2-Dibromoethane 102 94 78-120 8 30 <br /> Ethylbenzene 110 ' . 101 82-129 8 30 <br /> Xylene (Total) 109 100 82-130 9 30 <br /> Batch number: Z051754AA Sample number(s) : 4546320-4546321 <br /> Ethanol 104 105 26-153 1 30 <br /> Methyl Tertiary Butyl Ether 88 88 69-134 0 30 <br /> di-Isopropyl ether 89 87 75-130 1 30 <br /> Ethyl t-butyl ether 88 87 78-119 0 30 <br /> t-Amyl methyl ether 87 87 77-117 0 30 <br /> t-Butyl alcohol 97 93 51-147 5 30 <br /> Benzene 93 92 83-128 1 30 <br /> 3,2-Dichloroeth <br /> ane <br /> 90 86 73-136 5 30 <br /> Toluene 1 ene 94 93 <br /> 83-127 <br /> 1 30 <br /> :i <br /> 1,2-Dibromoethane 88 85 78-120 3 30 <br />!! Ethylbenzene 95 93 82-129 2 30 <br /> I , <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 /> a <br />