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1 <br /> I <br /> I <br /> Lancaster I F <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.laneasteriabs.com l <br /> Page 1 of 3 <br /> F I <br /> Quality Control Summary <br /> Client Name: ChevronTexaco Group Number: 942567 <br /> Reported: 05/18/05 at 06 :55 PM { <br /> Matrix QC may not be reported if site-specific QC samples were not II <br /> submitted. In these situations,to demonstrate precision and accuracy at j <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified in the } <br /> method. <br /> I�f <br /> Laboratory Compliance Quality Control ) <br /> Blank Blank Report LCS LCSD LCS/LCSD <br />+ Analysis Name Result MDL Unita REC %REC Limits I RPD RPD Max <br /> i <br /> Batch number: 0513DA54A Sample number(s) : 4519846-4519849 I <br /> TPH-GRO - Waters N.D. 50. ug/l 107 106 70-130 1 30 x <br /> I <br /> Batch number: Z051321AA Sample number{s} : 4519646-4519849 <br /> Ethanol N.D. 50. ug/l 114 30-155 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 91 77-127 <br /> di-isopropyl ether N.D. 0.5 ug/l 92 67-130 I <br /> Ethyl t-butyl ether N.D. 0.5 ug/1 92 74-120 Ik <br /> t-Amyl methyl ether N.D. 0.5 ug/1 93 79-113 <br /> t-Butyl alcohol N.D. 5. ug/1 90 57-141 <br /> Benzene N.D. 0.5 ug/1 94 85-117 f 1 <br /> 1,2-Dichloroethane N.D. 0.5 ug/1 95 77-132 <br /> Toluene N.D. 0.5 ug/1 99 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/l 93 81-114 <br /> r Ethylbenzene N.D. 0.5 ug/l 98 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 97 83-113 <br /> Batch number: Z051331AA Sample number(s) . 4519846-4519848 1 <br /> Ethanol N.D. 50. ug/l 68 30-155 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 89 77-127 iia <br /> di-Isopropyl ether N.D. 0.5 ug/l 90 67-130 ,Il <br /> Ethyl t-butyl ether N.D. 0.5 ug/l 90 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/l 91 79-113 <br /> t-Butyl alcohol N.D. 5. ug/l 88 57-141 €� <br /> Benzene N.D. 0.5 ug/l 92 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 90 77-132 <br /> Toluene N.D. 0.5 ug/l 94 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/l 90 81-114 <br /> Ethylbenzene N.D. 0.5 ug/l 93 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 93 83-113 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPA BEG DUP i DUP Dup RPD <br /> Analysis Name %REC %REC Limits RPD MAX Cone Cone �4 RPD Max <br /> Batch number: 05130A54A Sample number(s) ; 4519846-4519849 if <br /> TPH-GRO - Waters 83 63-154 <br /> Batch number: Z051321AA Sample number(s) : 4519848-4519849 <br /> Ethanol 114 115 26-153 1 30 <br /> Methyl Tertiary Butyl Ether 91 92 69-134 1 30 <br /> I <br /> *-Outside of specification y } <br /> (1) The result for one or both determinations was less than five times the LOQ. F 1 <br /> (2) The background result was more than four times the spike added. k <br /> t <br />