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} <br /> a <br /> Lancaster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.lancasterlabS.con <br /> Page 2 of 3 <br /> Quality Control Summary <br /> Client Name: ChevronTexaco Group Number: 949506 f <br /> Reported: 07/24/05 at 05:44 PM <br /> I <br /> Sample Matrix Quality Control ' 4 <br /> MS MSD MS/MSD RPD BXa DUP DUP Dup�RPD I <br /> Analysis Name %RRC %REC Limits RPD MAX Conc Cdnc RPD Max <br /> TPH-GRD - Waters 110 63-154 <br /> I � � 1 <br /> Batch number: 05182A16A Sample number(s) : 4554285-4554286 <br /> l TPH-GRO - Waters 105 63-154 <br /> Batch number: Z051862AB Sample number{s) : 4554255-4554287 <br /> Ethanol 86 98; 26-153 12 30 <br /> Methyl Tertiary Butyl Ether 65* 193* 69-134 80* 30 <br /> di-Isopropyl ether 88 93, 75-130 5 30 1 <br /> Ethyl t-butyl ether 89 94 78-119 5 30 '? <br /> t-Amyl methyl ether 92 99.1 77-117 7 30 } <br /> t-Butyl alcohol 87 Be, 51-147 1 30 <br /> Benzene 95 100 83-126 5 30 j k <br /> 1,2-Dichloroethane 97 95, 73-136 2 30 t <br /> i. Toluene 98 99 83-127 1 30 <br />{: 1,2-Dibromoethane 90 93: 78-120 4 30 <br /> Ethylbenzene 97 98, 82-129 1 30 <br /> Xylene (Total) 98 99 82-130 1 30 <br /> Batch number: Z051881AA Sample number(s) : 4554283-4554284 k <br /> Methyl Tertiary Butyl Ether 93 95' 69-134 2 30 <br /> Batch number: Z051921AA Sample nurhber(s) : 4554283-4554284 <br /> 'Ethanol 114 113 26-153 1 30 <br /> di-Isopropyl ether 106 106 75-130 0 30 <br /> Ethyl t-butyl ether 100 99 78-119 1 30 <br /> t-Amyl methyl ether 95 941} 77-117 1 30 i� <br /> t-Butyl alcohol 92 94' 51-147 2 30 <br /> Benzene 107 107 83-128 0 30 <br /> 1,2-Dichloroethane 87 87 73-136 0 30 <br /> Toluene 108 108 83-127 1 30 <br /> 1,2-Dibromoethane 100 106 78-120 0 30 i <br /> Ethylbenzene 106 107 82-129 1 30 <br /> Xylene (Total) 104 105 82-130 1 30 I } <br /> Surrogate Quality Control <br /> Analysis Name: TPH-GRO - Waters <br /> Batch number: 05182A07B <br /> i Tri£luorotoluene-F <br /> I <br /> 4554283 85 <br /> i <br /> 4554284 84 <br /> Blank 87 <br /> LCS 108 <br /> LCSD 112 <br /> MS 117 <br /> Limits: 70-142 <br /> i <br /> Analysis Name: TPH-GRO - Waters <br /> Batch number: 05182A16A 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 /> I <br /> i <br /> i <br /> 'f <br />