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ARepprt <br /> 47 <br /> Lancaster Laboratories <br /> Where qualityis a saence • <br /> Page 1 of 4 <br /> Quality Control Sun[mr►ary <br /> Client Name ChevronTexaco Group Number 829223 <br /> Reported 11/15/02 at 03 03 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysig Name Result IDL Unite $RBC RBC Limits RPD RPD Max <br /> Batch number 02307A16A Sample number(B) 3932623,3932625 <br /> TPH-GRO - Waters N D 5o ug/l 308 105 74-116 2 30 <br /> Batch number 02307A16B Sample number(s) 3932624,3932626-3932627 <br /> TPH-GRO - Waters N D 50 ug/l 108 105 74-116 2 30 <br /> Batch number 023080031A Sample numbers) 3932624-3932631 <br /> TPH - DRO CA LUFT (Waters) N D 50 ug/l 63 99 54-120 45' 20 <br /> Batch number 0230BA515 Sample number s) 3932628-3932632 <br /> TPH-GRO - Waters N D 50 ug/1 100 99 74-116 1 30 <br /> Batch number 023100042A Sample number(s) 3932628-3932631 <br /> Methanol (by Direct Injection) N D 200 ug/l 100 64-130 <br /> Batch number 02310112601A Sample number(s) 3932632 <br /> TRPH 418 1 N D 32 mg/l 87 83 57-110 5 11 <br /> Batch number N023091AA Sample number(s) 3932623-3932629 <br /> Ethanol N D 50 ug/l 95 43-159 <br /> Methyl t-butyl ether N D 5 ug/l 96 77-127 <br /> di-Isopropyl ether N D 5 ug/1 91 74-125 <br /> Ethyl t-butyl ether N D 5 ug/1 89 74-120 <br /> t-Amyl methyl ether N D 5 ug/l 92 71-114 <br /> t-Butyl alcohol N D 5 ug/I 93 59-139 <br /> Benzene N D 5 ug/l 104 65-117 <br /> 1,2-Dichloroethane N D 5 ug/l 102 77-132 <br /> Toluene N D 5 ug/l 106 85-115 <br /> 1,2-Dibromoethane N D 5 ug/l 100 81-114 <br /> Ethylbenzene N D 5 ug/1 108 82-119 <br /> Xylene (Total) N D 5 ug/1 107 84-120 <br /> Batch number N023101AA Sample number(s) 3932630-3932632 <br /> Ethanol N D 50 ug/l 84 43-159 <br /> Methyl t-butyl ether N D 5 ug/l 96 77-127 <br /> di-Isopropyl ether N D 5 ug/l 91 74-125 <br /> Ethyl t-butyl ether N D 5 ug/l Be 74-120 <br /> t-Amyl methyl ether N D 5 ug/l 91 71-114 <br /> t-Butyl alcohol N D 5 ug/l Be 59-139 <br /> Benzene N D S ug/l 108 85-117 <br /> 1,2-Dichloroethane N D 5 ug/l 104 77-132 <br /> Toluene N D 5 ug/l 110 85-115 <br /> 1,2-Dibromoethane N D 5 ug/l 102 81-114 <br /> Ethylbenzene N D 5 ug/l 109 82-119 <br /> Xylene (Total) N D 5 ug/1 110 84-120 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BRG DUP DUP Dup <br /> RPD <br /> Anal is Name $RHC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 02307A16A Sample number(s) 3932623,3932625 <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 /> Lancaster Laboratories Inc <br /> M E M B E R 2425 New Holland Pike <br /> PO Box 12425 <br /> A Lancaster PA 17605 2425 <br /> 717 656 2300 Fax 717 656 2681 1216 Rev 9/11/00 <br />