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Lancaster Laboratories Page l of 6 <br /> Where quality is a science. <br /> Quality Control Summary <br /> Client Name: Chevron Products Company Group Number: 795493 <br /> Reported: 02/19/02 at 08:50 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCs LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC %REC Limits RPD RPD Max <br /> Batch number: 020360003A Sample number(s) : 3768293.3768301 <br /> Methanol (by Direct Injection) N.D. 1000. ug/1 92 80-113 <br /> Batch number: 020360013A J036 Sample number(s) : 3768293-3768306 <br /> Total TPH N.D. 1000. ug/1 97 96 60-120 1 20 <br /> TPH Motor Oil C16-C36 N.D. 1000, ug/l <br /> Batch number: 020360015A Sample number(s) : 3768297,3768299-3768303,3768305-3768306 <br /> TPH - DRO CA LUFT (Waters) N.D. 50. u9/1 81 79 54-120 3 20 <br /> Batch number: 02036AO2 Sample number(s) : 3768292,3768297,3768299-3768301 <br /> Benzene N.D. 0.5 u9/1 90 88 80-118 2 30 <br /> Toluene N.D. 0.5 ug/l 89 88 82-119 1 30 <br /> Ethylbenzene N.D. 0.5 ug/1 90 87 81-119 3 30 <br /> Total Xylenes N.D. 1.5 ug/l 91 90 82-120 1 30 <br /> Methyl tert-Butyl Ether N.D. 2.5 ug/l 92 92 79-127 1 30 <br /> TPH-GRO - Waters N.D. 50. ug/l 98 96 76-126 2 20 <br /> Batch number: 02036A56 Sample number(s) : 3768293-3768296,3768298,3768302-3768306 <br /> Benzene N-D. 0.5 ug/l 101 104 60-118 3 30 <br /> 0ooluene N.D. 0.5 ug/l 100 102 82-119 2 30 <br /> hylbenzene N.D. 0.5 ug/1 99 100 81-119 1 30 <br /> tal xylenes N.D. 1.5 ug/1 100 101 82-120 1 30 <br /> Methyl tert-Butyl Ether N.D. 2.5 ug/1 98 103 79-127 4 30 <br /> TPH-GRO - Waters N.D. 50. ug/1 87 88 76-126 1 20 <br /> Batch number: 020370016A Sample number(s) : 3768293-3768296,3768298,3768304 <br /> TPH - DRO CA LUFT (Waters) N.D. 50. ug/l 84 95 54-120 13 20 <br /> Batch number: 020390020A Sample number(s) : 3768302-3768306 <br /> Methanol (by Direct Injection) N.D. 1000. ug/1 104 80-113 <br /> Batch number: V020351AA Sample number(s) : 3768293-3768298,3768300,3768304 <br /> Ethanol N.D. 500. ug/1 115 44-139 <br /> Methyl t-butyl ether N.D. 2. ug/l 98 77-127 <br /> di-Isopropyl ether N.D. 2. ug/1 105 74-125 <br /> Ethyl t-butyl ether N.D. 2. ug/1 97 74-120 <br /> t-Amyl methyl ether N.D. 2. ug/1 96 71-114 <br /> t-Butyl alcohol N.D. 100. ug/1 113 59-139 <br /> 1,2-Dichloroethane N.D. 2. ug/l 109 77-132 <br /> 1,2-Dibromoethane N.D. 2. ug/1 89 84-119 <br /> Batch number: V020362AA Sample number(s) : 3768299,3768301,3768303,3768305-3768306 <br /> Ethanol N.D. 500. u9/1 109 44-139 <br /> Methyl t-butyl ether N.D. 2. ug/l 67 77-127 <br /> di-lsopropyl ether N.D. 2. ug/1 95 74-125 <br /> Ethyl t-butyl ether N.D. 2. ug/1 68 74-120 <br /> t-Amyl methyl ether N.D. 2. ug/1 88 71-114 <br /> t-Butyl alcohol N.D. 100. ug/1 105 59-139 <br /> 1,2-Dichloroethane N.D. 2. ug/1 99 77-132 <br /> 1,2-Dibromoethane N.D- 2. ug/l 90 84-119 <br /> *-Outside of specification <br /> The result for one or both detenninations 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 E M B E Fi 2425 New Holland Pike <br /> PO Box 1 <br /> � Lancaster,r,PA PA 17605-2425 <br /> 717-656-2300 Fax:717-656-2681 2216 Rev.9/11/00 <br />