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Lancaster <br /> Laboratories Analysis Deport <br /> 2425 New Holland PFke,PO Bot 12425,Lancasier,PA 17605-2425•717-656 2300 Fax 717-656-2681•www lancasterlabs com <br /> Page 2 of 7 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 854136 <br /> Reported 06/16/03 at 10 47 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis NMg Result MDL Units RSC %R£ Limits RPD RPD 11ax <br /> 4-Bromophenyl-phenylether N D 1 ug/1 95 98 74-106 3 30 <br /> Hexachlorobenzene N D 1 ug/l 94 95 73-108 1 30 <br /> Phenanthrene N D 1 ug/1 90 92 72-106 2 30 <br /> Anthracene N D 1 ug/1 89 90 73-105 2 30 <br /> Di-n-butylphthalate N D 2 ug/1 92 94 75-107 1 30 <br /> Fluoranthene N D 1 ug/1 87 88 72-105 1 30 <br /> Pyrene N D 1 ug/1 94 94 71-111 0 30 <br /> Butylbenzylphthalate N D 2 ug/1 98 100 75-115 2 30 <br /> Benzo(a)anthracene N D 1 ug/1 95 97 75-107 2 30 <br /> Chrysene N D 1 ug/l 93 94 75-108 0 30 <br /> 3,31-Dlchlorobenzidlne N D 1 ug/1 72 74 30-108 2 30 <br /> bis(2-Ethylhexyl)phthalate N D 2 ug/l 90 91 72-117 1 30 <br /> Di-n-octylphthalate N D 2 ug/1 93 95 70-117 2 30 <br /> Benzo(b)fluoranthene N D 1 ug/1 98 100 74-110 2 30 <br /> Benzo(k)fluoranthene N D 1 ug/l 94 96 75-111 2 30 <br /> Benzo(a)pyrene N D 1 u9/1 99 100 79-110 1 30 <br /> Indeno(1,2,3-cd)pyrene N D 1 ug/l 98 101 79-111 3 30 <br /> Dibenz(a,h)anthracene N D 1 ug/l 107 109 84-117 2 30 <br /> Benzo(g,h,i)perylene N D 1 ug/l 99 102 79-110 3 30 <br /> 2-Methylphenol N D 1 ug/l 83 87 62-98 5 30 <br /> 4-Methylphenol N D 2 ug/1 76 79 23-139 3 30 <br /> Benzyl alcohol N D 5 ug/l 84 87 54-100 3 30 <br /> Benzoic acid N D 6 ug/1 10 10 5-66 1 30 • <br /> Batch number 03156112601A Sample number(s) 4054924 <br /> TRPH 418 1 N D 0 25 mg/l 94 98 54-113 4 14 <br /> Batch number 031570001A Sample number(s) 4054924 <br /> TPH - DRO CA LUFT (Waters) N D 50 ug/1 99 94 61-126 5 20 <br /> Batch number N031561AB Sample number(S) 4054924 <br /> Ethanol N D 50 ug/l 95 43-159 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 96 77-127 <br /> di-Isopropyl ether N D 0 5 ug/1 89 74-125 <br /> Ethyl t-butyl ether N D 0 5 ug/l 89 74-120 <br /> t-Amyl methyl ether N D 0 5 ug/l 91 79-113 <br /> t-Butyl alcohol N D 5 ug/l 91 53-147 <br /> Dichlorodifluoromethane N D 2 ug/l 111 59-151 <br /> Chloromethane N D 1 ug/l 97 63-134 <br /> Vinyl Chloride N n 1 ug/l 96 71-129 <br /> Bromomethane N D 1 ug/l 77 42-126 <br /> Chloroethane N D 1 ug/l 8o 54-127 <br /> Trichlorofluoromethane N D 2 ug/1 92 59-137 <br /> 1,1-Dachloroethene N D 0 8 ug/l 105 79-130 <br /> Methylene Chloride N D 2 ug/l 99 82-122 <br /> trans-1,2-Dichloroethene N D 0 8 ug/l 101 81-124 <br /> 1,1-Dichloroethane N D 1 ug/l 97 77-129 <br /> 2,2-Dichloropropane N D 1 ug/l 88 79-123 <br /> cls-1,2-Dichloroethene --N-D-- 0-8- - ug/l --103 -- 84-117 "- <br /> Chloroform N D 0 8 ug/l 99 86-124 <br /> 1,1,1-Trichloroethane N D 0 8 ug/l 94V 83-127 <br /> Carbon Tetrachloride N D 1 ug/l 89 77-130 <br /> 1,1-Dichloropropene N D 1 ug/l 98 84-116 <br /> Benzene N D 0 5 ug/l 103 85-117 <br /> 1,2-Dichloroethane N D 0 5 ug/l 96 77-132 <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 />