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J . <br /> Lancaster r <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.com <br /> Page I of 3 <br /> Quality Control Summary <br /> Client Name: ChevronTexaco Group Number: 925041 <br /> Reported: 01/05/05 at 10:17 AM F I� <br /> I <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 /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Result MDL Units %REC %REC Limits RPD RPD Max L� <br /> Batch number: 04351ADBB Sample number(s) : 4429661 pL <br /> TPH-GRO - Waters N.D. 50. u9/1 106 110 70-130 4 30 <br /> Batch number: 04351AOBD Sample number($) : 4429662 <br /> TPH-GRO - Waters N.D. 50. ug/l 106 110 70-130 4 30 <br /> Batch number: Z043521AA Sample number(s) : 4429661 <br /> Ethanol N.D. 50. ug/l 102 46-145 <br /> Methyl Tertiary Butyl Ether N-D_ 0.5 ug/l 89 77-127 <br /> di-Isopropyl ether N.D. 0.5 ug/l 103 67-130 f } <br /> Ethyl t-butyl ether N.D. 0.5 ug/l 93 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/l 89 79-1.13 <br /> t-Butyl alcohol N.D. 5. ug/l 85 57-141 <br /> Benzene N.D. 0.5 ug/l 95 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 88 77-132 ., <br /> Toluene N.D. 0.5 ug/1 98 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/l 93 81-114 <br /> Ethylbenzene N.D. 0.5 ug/l 96 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 95 83-113 <br /> Batch number: Z043531AA Sample number(s) : 4429662 <br /> Ethanol N.D. 50. ug/l 103 46-145 <br /> Methyl Tertiary Butyl Ether N.D- 0.5 ug/l 89 77-127 <br /> di-Isopropyl ether N.D. 0.5 ug/l 102 67-130 <br /> Ethyl t-butyl ether N.D. 0.5 ug/l 93 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/l 88 79-113 p <br /> t-Butyl alcohol N.D. 5. ug/l 86 57-141 J <br /> Benzene N.D. 0.5 ug/l 95 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 89' 77-132 <br /> Toluene N.D. 0.5 ug/l 99 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/l 94 81-114 <br /> Ethylbenzene N.D. 0.5 ug/l 97 82-119 <br /> Xylene (Total) N.D. 0.5 ug/1 96 83-113 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DFP DUP Dup RPD <br /> Analysis Name %REC %REC Limits RPD MAX Cone Cone RPD Max <br /> Batch number: D4351AOBB Sample number(s) : 4429661 r <br /> TPH-GRO - Waters 139 63-154 <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 /> ; 1 <br />