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Lancasteris Report <br /> Laboratories Ana Iys <br /> 2425 New Holland Pike PO Bax 12425 Lancaster PA 17605-2425•717 656-2300 Fax 717 656-2681•www lancastertabs cam <br /> Page 1 of 7 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 894184 <br />-Reported _05/7 3/_04_at_09 38-AM-- <br /> Matrix QC may not be reported rf site-specific QC samples were not - - <br /> submitted In these situations,to demonstrate precision and accuracy at <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified to the <br /> method <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analvais Name Result MDL Units %RBC REC Limits RPD RPD Max <br /> Batch number 041210015A Sample number(s) 4264503,4264505-4264507 <br /> TPH - DRO CA LUFT (Waters) N D 50 ug/1 86 84 61-126 3 20 <br /> Batch number 04122WACO26 Sample number(s) 4264503 <br /> Aniline N D 0 5 - ug/1 86 84- 35-102 2 30 <br /> 4-Chloroaniline N D 25 ug/l 83 81 32-120 2 30 <br /> Dibenzofuran N D 5 0 ug/l 90 90 66-107 0 30 <br /> 2-Methylnaphthalene N P 5 ug/1 86 87 59-107 1 30 <br /> 2-Nitroaniline N D 10 ug/l _ 95 96 74-114 1 30 <br /> 3-Nitroaniline N D 10 ug/l 93 92 64-113 1 30� • <br /> 4-N3.troaniline N D 20 ug/1 83 82 56-107 1 30 <br /> 2,4,5-Trichlorophenol N D to ug/l 90 94 70-115 5 30 <br /> 2-Chlorophenol N D 5 ug/l 92 94 63-112 2 30 <br /> Phenol N D 5 ug/2 46 46 24-65 1 30 <br /> 2-Nitrophenol N D 10 1.1g/1 96 102 71-113 4 30 <br /> 2,4-Dimethylphenol N D 5 ug/l 84 87 60-107 3 30 <br /> 2,4-Dichlorophenol N D 5 ug/1 87 91 70-107 5 30 <br /> 4-Chloro_3-methylphenol = __ =N D = - 5 =- _ug/l= _ 93_ = 92_ _ 71-113 _ _0_ 30 <br /> 2,4,6-Trichlorophenol N D 10 ug/1 93 94 71-109 1 30 <br /> 2,4-1)lnitrophenol N D 20 u9/1 79 82 46-121 4 30 <br /> 4-Nitrophenol-- _ _ N D 10 _ug/1__42-_,_ __,_43____19-76_ 2 _ 30 __ <br /> 4,6-Dinitro-2-methylphenol N D 10 ug/l 91 95 56-130 4 30 - <br /> Pentachlorophenol N D 10 ug/l 73 75 50-112 3 30 <br /> N-Nitrosodimethylamine -- N D - 5 -- ug/1 59- - 57 _ 39-84 4 30 <br /> bis(2-Chloroethyl)ether N D 5 ug/1 84 86 59-109 2 30 <br /> 1,3-Dichlorobenzene N D 5 ug/l 74 73 39-103 2 30 <br /> 1,4-Dichlorobenzene N D 10 ug/l 77 77 41-102 1 30 <br /> 1,2-Dichlorobenzene N D 5 ug/1 78 74 45-103 4 30 <br /> bis(2-Chloroisopropyl)ether N D 5 ug/l 100 101 59-133-1-30 <br /> Hexachloroethane N D 5 ug/1 68 67 22-102 2 30 <br /> N-Nitroso-di-n-propylamine N D 5 ug/l 87 87 59-107 0 30 <br /> Nitrobenzene N D 5 ug/1 85 86 63-112 2 30 <br /> Isophorone N D 5 ug/l 84 86 66-105 2 30 <br /> bis(2-Chloroethoxy)methane N D 5 ug/l 93 98 74-120 6 30 <br /> 1,2,4-Trichlorobenzene N D 5 ug/1 76 78 49-107 2 30 <br /> Naphthalene N D 5 1;9/1 86 89 58-108 3 30 <br /> Hexachlorobutadiene N D 10 ug/1 66 67 20-111 1 30 <br /> Hexachlorocyclopentadiene N D 10 ug/l 79 81 12-119 2 30 <br /> 2-Chloronaphthalene N D 5 ug/1 87 88 63-104 2 30 <br /> Acenaphthylene N D 5 ug/l 92 93 52-117 1 30 <br /> Dimethylphthalate N D 5 ug/1 87 85 34-114 2 30 <br /> 2,6-Dinitrotoluene N D 10 ug/l 91 92 71-108 1 30 <br /> Acenaphthene N D 5 ug/1 93 92 69-112 1 30 <br /> 2,4-Dinitrotoluene N D 10 ug/1 98 101 75-122 2 30 <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 Mmes the spike added is <br />