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ti� r <br /> Lancaster Laboratories Page I of 6 <br /> Wh Alk�;ya x'01 Summary <br /> Client Name ChevronTexaco Group Number 809639 <br /> Reported 06/14/02 at 09 37 AM <br /> Laboratory Compliance Quality Control. <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC 96REC Limits RPD RPD Max <br /> Batch number 021550008A Sample number(s) 3829262 <br /> TPH - DRQ CA LUFT (Waters) N D 50 ug/l 100 91 54-120 9 20 <br /> Batch number 02155112601A Sample number(s) 3829262 <br /> TRPH 418 1 N D 32 mg/1 79 81 57-110 2 11 <br /> Batch number 021551848005 Sample number(s) 3829263 <br /> Cadmium N D 10 ug/1 104 94-110 <br /> Chromium N D 2 ug/1 102 95-110 <br /> Lead N D 8 9 u9/1 104 94-110 <br /> Nickel N D 1 9 ug/l 103 92-110 <br /> Zinc N D 4 9 ug/l 102 94-112 <br /> Batch number 02155ASSA Sample number(s) 3829261-3829262,3829264-3829265 <br /> Benzene N D 0 5 ug/l 96 80-118 <br /> Toluene N D 0 5 u9/1 97 82-119 <br /> Ethylbenzene N D 0 5 ug/l 96 81-119 <br /> Total Xylenes N D 1 5 ug/1 96 82-120 <br /> Methyl tent-Butyl Ether N D 2 5 ug/l 91 79-127 <br /> TPH-GRO - Waters N D 50 ug/l 97 76-126 <br /> tch +number 02158WAF026 Sample number(B) 3829262 <br /> aline N D 5 0 ug/l 72 76 57-98 5 30 <br /> 4-Chlorcaniline N D 25 ug/1 68 83 39-113 20 30 <br /> Dibenzofuran N D 5 0 ug/l 86 82 66-112 5 30 <br /> 2-Methylnaphthalene N D 5 ug/1 85 81 54-112 4 30 <br /> 2-Nitroaniline N D 10 ug/1 103 100 79-128 2 30 <br /> 3-Nitroaniline N D 10 ug/1 75 81 41-124 7 30 <br /> 4-Nitroaniline N D 20 ug/1 97 96 63-119 1 30 <br /> 2,4,5-Trichlorophenol N D 10 ug/1 95 97 70-122 2 30 <br /> 2-chlorophenol N D 5 ug/l 91 90 73-114 1 30 <br /> Phenol N D 5 ug/l 45 45 31-59 0 30 <br /> 2-Nitrophenol N D 10 ug/l 98 97 73-123 1 30 <br /> 2,4-Dimethylphenol N D 5 ug/l 86 86 67-105 0 30 <br /> 2,4-Dichlorophenoi N D 5 ug/1 93 89 71-120 5 30 <br /> 4-Chloro-3-methylphenol N D 5 ug/l 100 95 74-119 5 30 <br /> 2,4,6-Trichlorophenol N D 10 u9/1 98 96 66-125 2 30 <br /> 2,4-Dinitrophenol N D 20 ug/1 92 97 26-14S 5 30 <br /> 4-Nitrophenol N D 10 ug/1 58 56 17-75 2 30 <br /> 4,6-Dinitro-2-methylphenol N D 10 ug/l 87 85 35-152 3 30 <br /> Pentachlorophenol N D 10 ug/1 101 82 43-127 20 30 _ <br /> N-Nitrosodimethylamine N ❑ 5 ug/1 62 62 42-85 0 30 <br /> bis(2-Chloroethyl)ether N D 5 ug/1 88 86 75-115 2 30 <br /> 1,3-Dichlorobenzene N D 5 ug/l 84 86 35-98 3 30 <br /> 1,4-Dichlorobenzene N D 10 ug/1 83 86 38-99 3 30 <br /> 1,2-Dichlorobenzene N D 5 ug/1 85 85 42-100 0 30 <br /> bis(2-Chloroisopropyl)ether N D 5 ug/l 101 99 65-153 3 30 <br /> Hexachloroethane N D 5 ug/l 84 88 20-97 S 30 <br /> *- Outside of specification <br /> (i) The result for one or both determinations was less than five tunes the LOQ <br /> 46 The background result was more than four times the spike added <br /> Lan(aster Laboratories Inc <br /> M E M B E R 2425 New Holland Pike <br /> PO Box 12425 <br /> Lancaster PA 17605 2425 <br /> 717 656 2300 Fax 717 656-2681 2216 Rev 9111100 <br />