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MALancaster - e ort <br /> kI. Laboratories AnalysisR p <br /> 5 New Holland Pike PO Box 12425 Lancaster PA 17605-2425•717 656-2300 Fax 717 656-2681•www lancasterlabs com <br /> Page 1 of 3 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 872710 <br /> Reported 11/11/03 at 11 21 AM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Reaul MDL Units %REC %REC Limits RPD RPD M <br /> Batch number 03302A16A Sample number(s) 4153222-4153225 <br /> TPH-GRO - Waters N D 50 ug/l 102 102 70-130 0 30 <br /> Batch number 033070010A Sample numbers) 4153223-4153225 <br /> Methanol (by Direct Injection) N D 1000 ug/l 92 78-114 <br /> Batch number N033081AC Sample numbers) 4153223-4153225 <br /> Acetone N D 6 ug/l 68 22-179 <br /> Batch number P033032AA Sample number(s) 4153222 <br /> Methyl Tertiary Butyl Ether N D 2 ug/l 98 77-127 <br /> Benzene N D 5 ug/l 101 85-117 <br /> Toluene N D 5 ug/l 104 85-115 <br /> Ethylbenzene N D 5 ug/1 103 82-119 <br /> Xylene (Total) N D 5 ug/l 105 84-120 <br /> Batch number P033041AA Sample number(s) 4153223-4153225 <br /> Ethanol N D 500 ug/l 73 46-145 <br /> Methyl Tertiary Butyl Ether N D 2 ug/1 91 77-127 <br /> di-Isopropyl ether N D 2 ug/l 88 74-125 <br /> Wh <br /> l t-butyl ether N D 2 u9/1 87 74-120 <br /> Buyl methyl ether N D 2 ug/l 92 79-113 <br /> tyl alcohol N D 100 ug/l Be 53-147 <br /> Benzene N D 5 u9/1 91 85-117 <br /> 1,2-Dichloroethane N D 2 ug/l Be 77-132 <br /> Toluene N D 5 ug/l 93 85-315 <br /> 1,2-Dibromoethane N D 2 u9/1 91 81-114 <br /> Ethylbenzene N D 5 ug/l 93 82-119 <br /> m+p-Xylene N D 0 5 ug/l 94 84-120 <br /> o-Xylene N D 0 5 ug/l 95 84-120 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSP RPD BAG DUP DUP Dup <br /> RPD <br /> Analysis Name $REC $REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 03302A16A Sample number(s) 4153222-4153225 <br /> TPH-GRO - Waters 119 63-154 <br /> Batch number 033070010A Sample number(B) 4153223-4153225 <br /> Methanol (by Direct Injection) 112 108 73-117 4 20 <br /> Batch number N0330BlAC Sample number(s) 4153223-4153225 <br /> Acetone 47 44 16-147 6 30 <br /> Batch number P033032AA Sample number(s) 4153222 <br /> Methyl Tertiary Butyl Ether 107 104 69-134 1 30 <br /> Benzene 108 107 83-128 1 30 <br /> Toluene 111 110 83-127 1 30 <br /> Ethylbenzene 110 109 82-129 1 30 <br /> Xylene (Total) 112 110 82-130 2 30 <br /> Batch number P033041AA Sample number(s) 4153223-4153225 <br /> *-Outside of specification <br /> � The result for one ar both determinations was less than five times the LOQ <br /> ) The background result was more than four times the spike added <br />