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Lancaster ¢ <br /> Laboratories Anal srs Re p ort <br /> Y � <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax 717-656-2681•www.lancasterlabs.com <br /> Page 1 of 2 <br /> 4 <br /> Quality Control Summary £ <br /> Client Name: ChevronTexaco Group Number:. 936620 <br /> Reported: 03/30/05 at 02 :34 PM.. <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 ' r <br /> a batch level,a LCS/LCSD was performed, unless otherwise specified in the <br /> method. <br /> Laboratory Compliance Quality Control J <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analvais Name Result MDL Unite 96REC %RSC Limits RPD APD Mak #¢ <br /> Batch number: 05086AIEA Sample number(s).: 4486833-4488836 <br /> TPH-GRO - Waters N.D. 50. ug/l 101 101 70-130 1 30 <br /> Batch number: ZD50864AA Sample number(s) : 4488833-4488836 <br /> Ethanol N.D. 50. ug/1 82 30-155 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 96 77-127 <br /> di-Isopropyl ether N.D. 0.5 ug/l 81 67-130 <br /> Ethyl t-butyl ether N.D. 0.5 ug/1 92 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/1 96 79-113 <br /> t-Butyl alcohol N.D. S. ug/l 94 57-141. <br /> Benzene N.D. 0.5 ug/1 88, 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/1 106 77-132 xJ <br /> Toluene N.D. 0,5 u9/1 93 85-115 ° <br /> 1,2-Dibromoethane N.D. 0.5 u9/1 88 81-114 <br /> Ethylbenzene N.D. 0.5 ug/l 93 82-119 <br /> Xylene (Total) N.D. 0.5 u9/1 94 83-113 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKO DUP DUP' Dnp RPD <br /> Analysis Name 11SREC %REC Limits RPD MAIC Conc Conc RPD Max <br /> 'Batch number: 0508GA16A Sample number(s) : 4488833-4488836 <br /> TPH-GRO - Waters 118 63-154 <br /> Batch number: Z050864AA Sample number(s) : 4488833-4488836 E <br /> Ethanol 88 95 26-153 8 30 J <br /> Methyl Tertiary Butyl Ether 95 95 69-134 0 30 <br /> di-isopropyl ether 83 83 75-130 0 30 i. <br /> Ethyl t-butyl ether 93 92 7B-119 1 30 P ' <br /> t-Amyl methyl ether 95 97 77-117 2 30 <br /> t-Butyl alcohol 92 94 51-147 3 30 F� <br /> Benzene 94 96 83-128 2 30 <br /> 1,2-Dichloroethane 102 99 73-136 2 30 <br /> Toluene 96 96 83-127 0 30 <br /> 1,2-Dibromoethane 87 91 78-120 4 30 l <br /> Ethylbenzene 100 99 82-129 1 30 <br /> Xylene (Total) 101 98 82-130 2 30 <br /> it 1 <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. j <br /> \J <br /> r� <br />