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Lancaster, Report <br /> . Laboratories i4nalys�s p <br /> 5 New Holland Pike PO Bax 12425 Lancaster PA 17605-2a2$•717-656-2300 Fax 717-656-2681•www lancasterlabs com <br /> Pagel of 3 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 849858 <br /> Reported 05/08/03 at 01 37 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units $REC 96RE Xamitis APD RPD MaX <br /> Batch number 03119A56A Sample number(s) 4034565-4034575 <br /> TPH-GRO - Waters N D 50 ug/l 101 99 70-130 2 30 <br /> Batch number P031201AA Sample number(s) 4034569-4034575 <br /> Ethanol N D 50 ug/l 98 43-159 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 102 77-127 <br /> di-Isopropyl ether N D 0 5 ug/l 99 74-125 <br /> Ethyl t-butyl ether N D 0 5 ug/l 102 74-120 <br /> t-Amyl methyl ether N D 0 5 ug/l 100 79-113 <br /> t-Butyl alcohol N D 5 ug/l 100 53-147 <br /> Benzene N D 0 5 ug/l 102 65-117 <br /> Toluene N D 0 5 u9/1 100 85-115 <br /> Ethylbenzene N D 0 5 ug/l 112 82-119 <br /> Xylene (Total) N D 0 5 ug/l 112 84-120 <br /> Batch number P031222AA Sample number(s) 4034565-4034568 <br /> Ethanol N D 50 ug/l 94 43-159 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 98 77-127 <br /> di-Isopropyl ether N D 0 5 ug/l 96 74-125 <br /> Ethyl t-butyl ether N D 0 5 119/1 97 74-120 <br /> WA <br /> umyl methyl ether N D 0 5 ug/l 100 79-113 <br /> tyl alcohol N D 5 ug/l 99 53-147 <br /> zene N D 0 5 ug/1 98 85-117 <br /> Toluene N D 0 5 ug/l 102 85-115 <br /> Ethylbenzene N D 0 5 ug/1 104 82-119 <br /> Xylene (Total) N D 0 5 ug/1 106 84-120 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BRG DUP DMP Dup <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 03119A56A Sample number(s) 4034565-4034575 <br /> TPH-GRO - Waters 105 70-130 <br /> Batch number P031201AA Sample number(s) 4034569-4034575 <br /> Ethanol 100 104 34-163 4 30 <br /> Methyl Tertiary Butyl Ether 108 107 69-134 1 30 <br /> di-Isopropyl ether 102 103 75-130 1 30 <br /> Ethyl t-butyl ether 103 105 73-123 2 30 <br /> t-Amyl methyl ether 103 105 77-117 1 30 <br /> t-Butyl alcohol 106 111 39-155 5 30 <br /> Benzene 107 109 83-128 2 30 <br /> Toluene 108 110 63-127 3 30 <br /> Ethylbenzene 109 112 82-134 3 30 <br /> Xylene (Total) 120 125 82-130 4 30 <br /> Batch number P031222AA Sample number(s) 4034565-4034566 <br /> Ethanol 87 74 34-163 17 30 <br /> Methyl Tertiary Butyl Ether 100 97 69-134 3 30 <br /> dl-Isopropyl ether 102 101 75-130 0 30 <br /> Ethyl t-butyl ether 103 100 73-123 2 30 <br /> t-Amyl methyl ether 104 100 77-117 4 30 <br /> *-Outside of specification <br /> The result for one or both determinations was less than five times the LOQ <br /> The background result was more than four times the spike added <br />