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1 <br /> Lancaster <br /> Laboratories An alysis Report <br /> 2425 New Holland Pike PO Box 12425 Lencaster PA 17605 2425•717-656-2300 Fax 717-656-2681•www larraStertabs com <br /> Page 5 of 9 <br /> Quality Control Summary <br /> a , <br /> Client Name ChevronTexacc Group Number 850017 <br /> Reported -05/11-/03-at 11 26-PM <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD-BRG DL1P DUP Dup <br /> RPD <br /> Analysis Name r -% Y6REC Y*REC Limits RPD _mAX Conc ;' = Conc REP Ma; <br /> bis(2-Chloroethoxy)methane 106 102 75-116 3 30 <br /> 1,2,4-Trichlorobenzene 87 83 56-106 4 30 <br /> Naphthalene 94 92 63-107 2 30 <br /> Hexachlorobutadiene 77 73 22-120 6 30 <br /> Hexachlcrocyclopentadiene - 66_, 63 K 13-122 6__ __30 <br /> 2-Chloronaphthalene 92^ 91 69-104 1 30 <br /> Acenaphthylene 89 88 66-107 1 30 <br /> Dimethylphthalate 37 48 17-127 26 30 <br /> 2,6-Dinztrotoluene 94 94 35-137 0 30 <br /> Acenaphthene 96 95 71-110 1 30 <br /> 2,4-Dlnitrotoluene 108 108 43-145 0 30 <br /> Fluorene 92 90 52-121 1 30 , <br /> 4-Chlorophenyl-phenylether 94 95 _64-109 0 30 <br /> Diethylphthalate 170 77 r 55-114 9 30 <br /> N-Nitrosodaphenylamine 86 86 69-105 2 30 <br /> 4-Bromophenyl-phenylether 94 89 70-109 5 30 <br /> Hexachlorobenzenew 96 92 65-114 4 30 <br /> Phenanthrene 99 96 69-106 3 30 <br /> Anthracene 97 94 71-106 3 30 <br /> Da-n-butylphthalate 88 87 71-107 1 30 <br /> Fluoranthene t - ' W = 94 91 70=104 3 - - 30 - - - <br /> Pyrene 94 93 67-112 1 30 . <br /> Butylbenzylphthalate 87 Be 69-115 2 30 <br /> Benzc(a)anthracene 100 98 72-108 3 30 <br /> Chrysene 98 97 73-108 2 30 <br /> 3,31-Dichlorobenzidine 92 91 8-113 1 30 <br /> b.is(2-Ethylhexyl)phthalate 114 104 67-117 9 30 <br /> Di-n-octylphthalate 95 94 64-119 1 30 <br /> Benzo(b)fluoranthene 101 98 72-109 2 30 <br /> Benzo(k)fIuoranthene 101' `- '1'03-- 73-111— ;0- 30- <br /> Benzo(a)pyrene 101 100 77-110 2 30 <br /> Indeno(1 2 3cd)pyrene 41* 9* X69-115 129* 30 <br /> Dibenz(a,h)anthracene" '140 --�98 `81-118 2 30--`- <br /> Benzo(g,h,i)perylene 92 88 72-114 4 30 <br /> 2-Methylphenol _ _ , 82 __ _ 61 ,34-119 1 30_ <br /> 4-Methylphenol 76 79 11-144 3 30 <br /> Benzyl alcohol 81 81 61-89 1 30 <br /> Benzoic acid 19 44 6-60 81* 30 <br /> Batch number N031181AS Sample number(s) 4035278 <br /> Ethanol 75 76 34-163 1 30 <br /> Methyl Tertiary Butyl Ether 103 105 69-134 1 30 <br /> di-Isopropyl ether 102 103 75-130 1 30 <br /> Ethyl t-butyl ether 92 93 73-123 1 30 t <br /> t-Amyl methyl ether 93 95 77-117 1 30 <br /> t-Butyl alcohol Bo 82 39-155 2 30 <br /> Dichlorodifluoromethane 132 135 62-169 2 30 - <br /> Chloromethane 113 119 66-142 5 30 - <br /> Vinyl Chloride 121 127 64-148 4 30 <br /> Bromomethane 102 104 48-132 2 30 <br /> Chloroethane 119 124 58-136 4 30 <br /> Trichlorofluoromethane 133 134 64-154 0 30 <br /> 1,1-Dichloroethene 127 131 78-146 3 30 <br /> Methylene Chloride 121 122 80-126 1 30 <br /> trans-1,2-Dichloroethene 120 121 82-133 1 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 />