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e - • • <br /> Lancaster Laboratories Pagel of6 <br /> Where qualit40 <br /> 'yrs a science <br /> Quality Control Summary <br /> Client Name Chevron Products Company croup Number 797430 <br /> Reported- 03/04/02 at 04 09 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC $REC L3-m3.ts RPD RPD Max <br /> Batch number 020511848005 Sample number(s) 3775769 <br /> Cadmium N D 10 ug/l 100 94-110 <br /> Chromium N D 1 7 ug/1 100 95-110 <br /> Lead N D 8 8 ug/l 99 94-110 <br /> Nickel N D 2 3 ug/l 99 92-110 <br /> Zinc N D 3 2 ug/l 98 94-112 <br /> Batch number 02051A55 Sample number(s) 3775767-3775768,3775770-3775771 <br /> Benzene N D 0 5 ug/l 104 100 80-118 4 30 <br /> Toluene N D 0 5 ug/l 111 106 82-119 5 30 <br /> Ethylbenzene N D 0 5 ug/l 115 109 81-119 5 30 <br /> Total Xylenes N D 1 5 ug/l 114 109 82-120 4 30 <br /> Methyl tert-Butyl Ether N D 2 5 ug/l 102 99 79-127 3 30 <br /> TPH-GRO - Waters N D 50 ug/l 88 85 76-126 3 30 <br /> Batch number 02051WAF026 Sample number(s) 3775768 <br /> Aniline N D 5 0 ug/1 66 77 57-98 15 30 <br /> 4-Chloroaniline N D 25 ug/l 69 74 39-113 8 30 <br /> Dibenzofuran N D 5 0 ug/1 76 78 66-112 2 30 <br /> 2-Methylnaphthalene N D 5 ug/l 73 BO 54-112 9 30 • <br /> 2-Nitroaniline N D 10 ug/l 82 87 79-128 7 30 <br /> 3-Nitroaniline N D 10 ug/l 61 66 41-124 7 30 <br /> 4-Nitroaniline N D 20 ug/1 73 77 63-119 6 30 <br /> 2,4,5-Trichlorophenol N D 10 ug/1 82 86 70-122 5 30 <br /> 2-Chlorophenol N D 5 ug/l 77 86 73-114 12 30 <br /> Phenol. N D 5 ug/1 37 39 —_31=59 7_ 30— —_ <br /> 2-Nitrophenol N D 10 ug/l 82 91 73-123 11 30 <br /> 2,4-Dimethylphenol N D 5 ug/l 76 85 67-105 9 30 <br /> 2,4-Dichlorophenol N D 5 ug/1 79 87 71-120 10 30 <br /> 4-Chloro-3-methylphenol N D 5 ug/1 85 92 74-119 7 30 <br /> 2,4,6-Trichlorophenol N D 10 ug/l 82 83 66-125 1 30 <br /> 2,4-Dinitrophenol N D 20 ug/l 80 68 26-145 16 30 <br /> 4-Nitrophenol N D 10 ug/l 39 36 17-75 10 30 <br /> 4, 6-Dinitro-2-methylphenol N D 10 ug/1 80 75 35-152 5 30 <br /> Pentachlorophenol N D 10 ug/i 79 77 43-127 2 30 <br /> N-Nitrosodimethylamine N D 5 ug/1 49 57 42-85 14 30 <br /> bis(2-Chloroethyl)ether N D 5 ug/1 75 85 75-115 13 30 <br /> 1,3-Dichlorobenzene N D 5 ug/l 63 72 35-98 14 30 <br /> 1,4-Dichlorobenzene N D 10 ug/l 65 73 38-99 11 30 <br /> 1,2-Dichlorobenzene N D 5 ug/l 67 76 42-100 13 30 <br /> bis(2-Chloroisopropyl)ether N D 5 ug/l 89 102 65-153 14 30 <br /> Hexachloroethane N D 5 ug/1 55 64 20-97 16 30 <br /> N-Nitroso-di-n-propylamine __ N D _ _5 ug/1 77 _88 _ 67-119 13 30 <br /> Nitrobenzene N D 5 ug/l 79 86 74-116 8 30 <br /> Isophorone N D 5 ug/1 82 89 68-109 9 30 <br /> bis(2-Chloroethoxy)methane N D 5 ug/1 84 92 75-125 9 30 <br /> 1,2,4-Trichlorobenzene N D 5 ug/l 72 80 40-106 11 30 <br /> Naphthalene N D 5 ug/1 74 82 58-108 10 30 <br /> Hexachlorobutadiene N D 10 ug/l 57 63 18-103 9 30 <br /> Hexachlorocyclopentadiene N D 10 ug/l 114 124 3-130 8 30 <br /> 2-Chloronaphthalene N D 5 ug/l 75 79 61-114 5 30 <br /> *-Outside of specification . <br /> (I) 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 /> Lancaster Laboratories inc <br /> M E M g E F:j 2425 New Holland Pike <br /> PO Box 12425 <br /> e Lancaster PA 17605 2425 <br /> 717-656 2300 Fax 717 656-2661 2216 Rev 9/11100 <br />