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A Analysi's Report <br /> Lancaster Laboratories <br /> • Where quality is a science. <br /> Page i of S <br /> Quality Control Summary <br /> Client Name: ChevronTexaco Group Number: 827932 <br /> Reported: 11/0.5/02 at 06 :46 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result IDL Units $REC $REC Limits RPD RPD Max <br /> Batch number: 022970012A Sample number(s) : 3925154-3925166 <br /> Total TPH N-D. 400. ug/l Be 78 71-117 12 20 <br /> TPH Motor Oil C16-C36 N.D. 400. ug/l <br /> Hatch number: 022970025A Sample number(s) : 3925154,3925156-3925168 <br /> TPH - DRO CA LUFT (waters) N.D. 50. ug/1 79 96 54-120 20 20 <br /> Batch number: 02297A16A Sample number(s) 3925153-3925168 <br /> TPH-GRO - Waters N.D. 50. ug/l 114 116 74-116 2 30 <br /> Batch number: 023010003A Sample number(s) : 3925154-3925166 <br /> Methanol (by Direct Injection) N.D. 200. ug/1 88 64-130 <br /> Batch number: 023010005A Sample number(s) : 3925167-3925168 <br /> Methanol (by Direct injection) N.D. 200. ug/l 104 64-130 <br /> Batch number: 023040026A Sample number(s) : 3925155 <br /> TPH - DRO CA LUFT (Waters) N.D. 50. ug/1 93 98 54-120 5 20 <br /> Batch number: N023031AB Sample number(s) : 3925153-3925158 <br /> Ethanol N.D. 50. ug/l 96 43-159 <br /> Methyl t-butyl ether N.D. .5 ug/l 102 77-127 <br /> di-Isopropyl ether N.D. .5 ug/1 94 74-125 <br /> Ethyl t-butyl ether N.D. .5 ug/l 91 74-120 <br /> t-Amyl methyl ether N.D_ .5 ug/1 94 71-114 <br /> t-Butyl alcohol N.D. 5- ug/1 106 59-139 <br /> Benzene N.D_ .5 ug/1 109 85-117 <br /> 1,2-Dichloroethane N.D. .5 ug/1 106 77-132 <br /> Toluene N.D. -5 ug/l 109 85-115 <br /> 1,2-Dibromoethane N.D_ .5 ug/l 104 81-114 <br /> Ethylbenzene N.D. .5 ug/l 109 82-119 <br /> Xylene (Total) N.D. .5 ug/i 110 84-120 <br /> Batch number: N023041AA Sample number(s) : 3925159-3925168 <br /> Ethanol N.D. 50. ug/1 85 43-159 <br /> Methyl t-butyl ether N.D. .5 ug/l 97 77-127 <br /> di-Isopropyl ether N.D. .5 ug/l 89 74-125 <br /> Ethyl t-butyl ether N.D. .5 ug/l 84 74-120 <br /> t-Amyl methyl ether N.D. 5 ug/l 91 71-114 <br /> t-Butyl alcohol N.D. 5. ug/l 94 59-139 <br /> Benzene N.D. .5 ug/l 104 85-117 <br /> 1,2-Dichloroethane N.D. .5 ug/1 104 77-132 <br /> Toluene N.D. .5 ug/l 104 85-115 <br /> 1,2-Dibromoethane N.D. .5 ug/l 103 81-114 <br /> Ethylbenzene N.D. .5 ug/l 104 82-119 <br /> Xylene (Total) N.D. .5 ug/l 105 84-120 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSA RPD BKG DUP DUP Dup <br /> RPD <br /> Anal ais Name IRE C $REC Limits RPD MAX Conc Coma RPD Max <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 /> Lancaster Laboratories,Inc. <br /> M E M B E R 2425 New Holland Pike <br /> PO Box 12425 <br /> Lancaster, 17605-2425 <br /> 717.656.230000 Fax:717-656-2681 2216 Rev.9/11/00 <br />