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Analysis Report <br /> R Lancaster Laboratories Page 1 of 2 <br /> Where quality is a science <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 81.1668 <br /> Reported 06/28/02 at 12 41 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis N e Result MDL Unite %REC %REC Limits RPA RPD Max <br /> Batch number 0217OA51A Sample number(s) 3837550 <br /> TPH-GRO - Waters N D 5o ug/l 94 101 76-126 7 30 <br /> Batch number 021750002A Sample number(s) 3837550 <br /> Methanol (by Direct In3ection) N D 200 ug/1 92 64-130 <br /> Batch number U021701AB Sample number(s) 3837550-3837551 <br /> Ethanol N D 50 ug/1 75 44-139 <br /> Methyl t-butyl ether N D 5 ug/1 106 77-127 <br /> di-Isopropyl ether N D 5 ug/1 104 74-125 <br /> Ethyl t-butyl ether N D 5 ug/1 99 74-120 <br /> t-Amyl methyl ether N D 5 ug/l 95 71-114 <br /> t-Butyl alcohol N D 5 ug/l 108 59-139 <br /> Benzene N D 5 ug/l 97 64-120 <br /> 1,2-Dichloroethane N D 5 ug/l 130 77-132 <br /> Toluene N D 5 ug/l 102 86-123 <br /> 1,2-Dlbromoethane N D 5 ug/1 100 84-119 <br /> Ethylbenzene N D 5 ug/1 104 88-124 <br /> Xylene (Total) N D 5 ug/1 101 89-124 <br /> Sample Matrix Quality Control j <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> 0RPD <br /> al ais Nam- AREC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 0217OA51A Sample number(s) 3837550 <br /> TPH-GRO - Waters 92 74-132 <br /> Batch number 021750002A Sample number(s) 3837550 <br /> Methanol (by Direct In3ection) 92 88 58-137 4 20 <br /> Batch number U021701AB Sample number(s) 3837550-3837551 <br /> Ethanol 107 116 70-130 9 30 <br /> Methyl t-butyl ether 106 108 69-134 2 30 <br /> di-Isopropyl ether 109 108 68-133 1 30 <br /> Ethyl t-butyl ether 105 102 73-123 3 30 <br /> t-Amyl methyl ether 96 97 69-118 1 30 <br /> t-Butyl alcohol 124 123 51-148 1 30 <br /> Benzene 106 105 78-134 1 30 <br /> 1,2-Dichloroethane 137 137 75-141 0 30 <br /> Toluene 107 107 78-133 0 30 <br /> 1,2-Dxbromoethane 105 105 78-120 1 30 <br /> Ethylbenzene 110 109 82-134 1 30 <br /> Xylene (Total) 104 107 81-136 2 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 0217OA51A <br /> Trifluorotoluene-F <br /> 3837550 94 <br /> Blank 93 <br /> *-Outside of specification <br /> } The result for one or both determinations was less than five times the LOQ <br /> The background result was more than four times the spike added <br /> Lancaster Laboratories Inc <br /> M 1= M B E R 2425 New Holland Pike <br /> PO Box 12425 <br /> Elmo Lancaster PA 17605 2425 <br /> 717 656 2300 Fax 717 696 2681 2216 Rev 9/11/00 <br />