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Analy Is , Opp <br /> Lancaster Laboratories Page 1 of 7 <br /> • Where quality is a science <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 820390 <br /> Reported 09/10/02 at 03 59 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LITS LCSD LCS/LCSD <br /> Analysis Name Result ML units %RSC %RBC Limits RPD RPD Max <br /> Batch number 022400004A Sample number(s) 3886115 <br /> TPH - DRO CA LUFT (Waters) N D 50 ug/1 81 91 54-120 12 20 <br /> Batch number 02240112601A Sample number(s) 3886115 <br /> TRPH 418 1 N D 32 mg/1 86 84 57-110 3 11 <br /> Batch number 0224DA51A Sample number(s) 3686114 <br /> TPH-GRO - Waters N D 50 u9/1 108 105 74-116 3 30 <br /> Batch number 02240A51B Sample number(s) 3886115,3886117-3886118 <br /> TPH-GRO - Waters N D 50 ug/1 108 105 74-116 3 30 <br /> Batch number 02t40WAF026 Sample number(s) 3886115 <br /> Aniline N D 1 ug/1 71 57-98 <br /> 4-Chloroaniline N D 1 ug/l 49 24-118 <br /> Dibenzofuran N D 1 ug/l 83 66-112 <br /> 2-Methylnaphthalene N D 1 ug/l 72 54-112 <br /> 2-Nitroaniline N D 1 ug/l 100 79-128 <br /> 3-Nitroaniline N D 1 ug/l 50 28-122 <br /> 4-Nitroaniline N D 1 ug/l 93 63-119 <br /> 2,4,5-Trichlorophenol N D 1 u9/1 89 70-122 <br /> 2-Chlorophenol N D 1 ug/l 90 73-114 <br /> Phenol N D 1 ug/l 48 23-67 <br /> 2-Nitrophenol N D 1 ug/l 93 73-123 <br /> 4-Dimethylphenol N D 1 ug/1 81 67-105 <br /> 4-Dichlorophenol N D 1 ug/l 85 71-120 <br /> Chloro-3-methylphenol N D 1 ug/l 93 74-119 <br /> 4,6-Trichlorophenol N D 1 u9/1 88 66-125 <br /> 2,4-Dinitrophenol N D 20 ug/l 96 35-135 <br /> 4-Nxtrophenol N D 10 ug/1 48 17-75 <br /> 4,6-Dinitro-2-methylphenol N D 5 ug/l 100 46-144 <br /> Pentachlorophenol N D 3 ug/l 69 43-127 <br /> N-Nitrosodxmethylamine N D 2 ug/l 71 42-85 <br /> bis(2-Chloroethyl)ether N D 1 ug/l 88 75-115 <br /> 1,3-Dichlorobenzene N D 1 ug/l 57 35-98 <br /> 1,4-Dichlorobenzene N D 1 ug/l 57 38-99 <br /> 1,2-Dichlorobenzene N D 1 ug/l 61 42-100 <br /> bis(2-Chloroisopropyl)ether N D 1 ug/l 103 65-153 <br /> Hexachloroethane N D 1 ug/l 51 20-97 <br /> N-Nitroso-dx-n-propylamine N D 1 ug/l 88 67-119 <br /> Nitrobenzene N D 1 ug/1 87 74-116 <br /> Isophorone N D 1 ug/1 87 68-109 <br /> bis(2-Chloroethoxy)methane N D 1 ug/l 93 75-125 <br /> 1,2,4-Trlchlorobenzene N D 1 ug/1 63 40-106 <br /> Naphthalene N D 1 ug/1 73 58-108 <br /> Hexachlorobutadiene N D 1 ug/1 53 18-103 <br /> Hexachlorocyclopentadiene N D 5 ug/l 43 5-156 <br /> 2-Chloronaphthalene N D 1 ug/1 81 61-114 <br /> Acenaphthylene N D 1 ug/1 81 71-116 <br /> Dlmethylphthalate N D 2 ug/1 88 2-102 - <br /> 2,6-Dinitrotoluene N D 1 ug/l 92 74-120 <br /> Acenaphthene N D 1 ug/l 84 68-114 <br /> 2,4-Dinitrotoluene N D 1 u9/1 102 75-129 <br /> Fluorene N D 1 ug/l 74 63-126 <br /> 4-Chlorophenyl-phenylether N D 1 ug/l 71 64-121 <br /> Dxethylphthalate N D 2 ug/1 92 28-120 <br /> N-Nitrosodxphenylamine N D 2 ug/l 86 64-118 <br /> 4-Bromophenyl-penylether N D 1 ug/1 86 70-120 <br /> Hexachlorobenze e N D 1 ug/1 85 65-128 <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 /> Lancaster Laboratories Inc <br /> M E L, B E R 2425 New Holland Pike <br /> PO Box 12425 <br /> & Lancaster PA 17605 2425 <br /> 717-656-2300 Fax 717 656 2681 2216 Rev 9111/00 <br />