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Analysis <br /> Report <br /> Lancaster Laboratories Pagel of 3 <br /> Where quality is a science. <br /> Quality Control Summary <br /> Client Name: Chevron Products Company Group Number: 781041 <br /> Reported: 10/23/01 at 05:16 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LC3/LCSD <br /> Analysis-Name Result MDL Units %REC %REC Limits RPD RPD Max <br /> Batch number: 012790002A Sample number(s) : 3701036-3701045,3701048-3701049 <br /> TPH - DRO CA LUFT (Waters) N.D. 50. ug/l 104 106 54-120 2 20 <br /> Batch number: 012790013A J288 Sample number(s) : 3701036-3701049 <br /> C16-C36 N.D. .2 mg/l <br /> Total TPH N.D. .2 mg/1 94 99 60-120 5 20 <br /> Batch number: 01281A51 Sample number(s) : 3701035,3701042-3701049 <br /> Benzene N.D. 0.5 ug/l 113 115 80-118 2 30 <br /> Toluene N.D. 0.5 ug/l 112 115 82-119 2 30 <br /> Ethylbenzene N.D. 0.5 ug/l 114 116 81-119 1 30 <br /> Total Xylenes N.D. 1.5 ug/1 115 116 82-120 2 30 <br /> Methyl tert-Butyl Ether N.D. 2.5 ug/l 114 115 79-127 1 30 <br /> TPH-GRO N. California (waters) N.D. 50. ug/1 101 105 76-119 4 20 <br /> Batch number: 01281A56 Sample number(s) : 3701036-3701041 <br /> Benzene N.D. 0.5 ug/l 111 109 80-118 2 30 <br /> Toluene N.D. 0.5 ug/l 111 108 82-119 2 30 <br /> Ethylbenzene N.D. 0.5 ug/l 114 111 81-119 3 30 <br /> Total xylenes N.D. 1.5 ug/l 113 110 82-120 2 30 <br /> Methyl tert-Butyl Ether N.D. 2.5 ug/1 119 120 79-127 1 30 <br /> TPH-GRO N. California (waters) N.D. 50. ug/l 109 110 76-119 1 20 <br /> Batch number: 012830003A Sample number(s) : 3701046-3701047 <br /> TPH - DRO CA LUFT (waters) N.D. 50. ug/l 56 90 54-120 46* 20 <br /> Sample Matr x�Qual-ity.Cont=ol <br /> M3 MSD MS/MSD RPD BKG DUP DUP DUP <br /> Analysis Name -%REC %REC Limits RPD MAX Cone Conc RPD RPDMax <br /> Batch number: 01281A51 Sample number(s) : 3701035,3701042-3701049 <br /> Benzene 106 109 66-140 2 30 <br /> Toluene 108 109 72-136 1 30 <br /> Ethylbenzene 109 11l 71-138 2 30 <br /> Total Xylenes 110 112 69-140 1 30 <br /> Methyl tert-Butyl Ether 108 108 60-145 1 30 <br /> TPH-GRO N. California (waters) 113 111 74-132 2 20 <br /> Batch number: 01281A56 Sample number(s) : 3701036-3701041 <br /> Benzene 101 101 66-140 0 30 <br /> Toluene 102 103 72--138 1 30 <br /> Ethylbenzene 106 106 71-138 1 30 <br /> Total Xylenes 105 105 69-140 1 30 <br /> Methyl tert-Butyl Ether 107 106 60-145 1 30 <br /> TPH-GRO N. California (waters) 116 120 74-132 3 20 <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,PA 17605-2425 <br /> 717-fi56 2300 Fax:717-656-2681 2216 Rev.9/11/00 <br />