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i <br /> Lancaster Q <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike PO Box 12425 Lancaster,PA 17605-2425•717-656 2300 Fax 717-656-2681•www Iamasterlabs Coln <br /> Page 1 of 6 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 873985 <br /> Reported 11/18/03 at 04 51 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analymis Name Result MDL Units %REC ARE Limits RPD RPD Max <br /> Batch number 03312WAGO26 Sample number(s) 4159232 <br /> Aniline N D 5 0 ug/1 67 70 35-102 4 30 <br /> 4-Chloroaniline N D 25 ug/l 73 71 13-113 3 30 <br /> Dibenzofuran N D 5 0 ug/1 78 85 70-111 8 30 <br /> 2-Methylnaphthalene N D 5 ug/l 73 79 60-111 8 30 <br /> 2-Nitroaniline N D 10 ug/1 87 93 79-115 6 30 <br /> 3-Nitroanaline N D 10 ug/1 82 84 39-118 3 30 <br /> 4-Nitroani.line N D 20 u9/1 80 83 61-105 4 30 <br /> 2,4,5-Trichlorophenol N D 10 ug/l 83 89 70-115 7 30 <br /> 2-Chlorophenol N D 5 ug/l 79 81 63-112 2 30 <br /> Phenol N D 5 ug/1 39 41 24-65 7 30 <br /> 2-Nitrophenol N D 10 ug/l 81 86 72-115 5 30 <br /> 2,4-Dimethylphenol N D 5 ug/l 77 79 62-104 3 30 <br /> 2,4-Dichlorophenol N D 5 ug/l 80 83 72-110 5 30 <br /> 4-Chloro-3-methylphenol N D 5 ug/1 83 88 72-110 5 3o <br /> 2,4,6-Trichlorophenol N D 10 ug/l 82 87 73-111 6 30 <br /> 2,4-Dinitrophenol N D 20 ug/l 79 88 48-122 10 30 <br /> 4-Nitrophenol N D 10 ug/l 39 40 22-72 4 30 <br /> 4,6-Dinitro-2-methylphenol N D 10 ug/1 86 92 62-123 7 30 <br /> Pentachlorophenol N D 10 ug/l 78 83 53-114 6 30 <br /> N-Nitrosodlmethylamine N D 5 ug/1 55 65 39-84 15 30 <br /> bis(2-Chloroethyl)ether N D 5 ug/l 77 78 62-109 1 30 <br /> 1,3-Dichlorobenzene N D 5 ug/l 60 65 40-104 8 30 <br /> 18 <br /> 1,4-Dichlorobenzene N D 10 ug/l 61 65 42-104 6 30 <br /> 1,2-Dichlorobenzene N D 5 ug/l 62 66 45-103 7 30 <br /> bis(2-Chloroisopropyl)ether N D 5 ug/l 89 92 68-139 4 30 <br /> Hexachloroethane N D 5 ug/l 49 56 22-102 13 30 <br /> N-Nitroso-di-n-propylamine N D 5 ug/l 79 B2 63-109 5 30 <br /> Nitrobenzene N D 5 ug/l 76 79 63-112 4 30 <br /> Isophorone N D 5 ug/l 77 81 71-107 5 30 <br /> bas(2-Chloroethoxy)methane N D 5 ug/l 87 90 74-120 3 30 <br /> 1,2,4-Trichlorobenzene N D 5 ug/l 66 72 49-107 9 30 <br /> Naphthalene N D 5 ug/1 74 78 60-111 6 30 <br /> Hexachlorobutadiene N D 10 ug/l 53 61 20-111 16 30 <br /> Hexachlorocyclopentadiene N D 10 ug/l 57 67 8-126 16 30 <br /> 2-Chloronaphthalene N D 5 ug/l 73 81 65-108 9 30 <br /> Acenaphthylene N D 5 ug/l 75 81 61-108 8 30 <br /> Dimethylphthalate N D 5 ug/l 69 77 41-117 10 30 <br /> 2,6-Dinitrotoluene N D 10 ug/1 82 88 74-109 6 30 <br /> Acenaphthene N D 5 ug/1 80 86 72-116 8 30 <br /> 2,4-Dinitrotoluene N D 10 ug/l 93 99 76-120 6 30 <br /> Fluorene N D 5 u9/1 77 82 65-115 6 30 <br /> 4-Chlorophenyl-phenylether N D 5 ug/1 8o 87 68-108 9 30 <br /> Diethylphthalate N D 5 ug/1 80 84 70-108 6 30 <br /> N-Nitrosodiphenylamine N D 5 ug/1 74 77 67-106 4 30 <br /> 4-Bromophenyl-phenylether N D 5 ug/l so 85 74-106 7 30 <br /> Hexachlorobenzene - - - N D _ 10 ug/l 82 _88 71-110 8 30 <br /> Phenanthrene N D 5 ug/l 82 85 73-112 3 30 <br /> Anthracene N D 5 ug/1 80 82 73-110 3 30 <br /> D3-n-butylphthalate N D 10 ug/1 /y dl 75-107 3 30 <br /> Fluoranthene N D 5 ug/l 80 82 71-107 3 30 <br /> Pyrene N D 5 ug/l 82 89 73-117 8 30 <br /> Butylbenzylphthalate N D 50 ug/l 82 8B 75-115 7 30 <br /> Benzo(a)anthracene N D 5 ug/1 86 91 77-114 6 30 <br /> Chrysene N D 5 ug/1 84 90 75-113 6 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 times the spike added <br />