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Lancaster L. J:: ratories �x <br />Where quality is a science. page 2 of 7 <br />Quality Control summary, 1. <br />Group Number; 829283 <br />Client Name: ChevronTexaco <br />at 07:58 <br />Control <br />Reported: 11/14/02 <br />,�oratory <br />Compliance <br />.Quality <br />Blank <br />Blank <br />Report <br />LCSD <br />LCS LCSDLimit <br />EC <br />LCS/LCSD <br />Re_� <br />MDL <br />Units <br />ug 1 <br />r <br />85-115 <br />81-114 <br />?,nal si@ Name <br />N.D. <br />.5 <br />ug/1 <br />102 <br />g2-119 <br />Toluene <br />1,2-Dibromoethane <br />N.D. <br />N.D. <br />.5 <br />5 <br />ug/l <br />ug/1 <br />109 <br />110 <br />84-120 <br />Ethylbenzene <br />N.D. <br />5 <br />Xylene (Total) <br />153,3933163-393316 <br />3933143-393389 <br />43-159 <br />Batch number: N023102AA <br />Sample <br />N D <br />number(s): <br />50. <br />ug/1 <br />ug/l <br />93 <br />77-127 <br />Ethanol <br />Methyl t -butyl ether <br />N.D. <br />N.D. <br />.5 <br />,5 <br />ug/l <br />89 <br />74-125 <br />74-120 <br />di -Isopropyl ether <br />N.D. <br />-5 <br />u4/1 <br />ug/1 <br />82 <br />87 <br />71-114 <br />Ethyl t -butyl ether <br />ether <br />N.D. <br />5 <br />5. <br />ug/l <br />84 <br />59-139 <br />85-117 <br />t -Amyl methyl <br />t -Butyl alcohol <br />N.D, <br />N.D. <br />.5 <br />u9/l <br />104 <br />101 <br />77-132 <br />Benzene <br />1,2-Dichloroethane <br />N D <br />ND. <br />.5 <br />5 <br />ug/l <br />u 1 <br />F <br />106 <br />BS -115 <br />81-114 <br />Toluene <br />N. <br />N. <br />.5 <br />ug/l <br />u <br />96 <br />107 <br />82-119 <br />1,2-Dibromoethane <br />N.D. <br />,5 <br />ugg/1/1 <br />108 <br />64-120 <br />Ethylbenzene <br />N.D. <br />5 <br />Xylene (Total) <br />Analvsis Name <br />Batch number: 0230BA16A <br />TPH-GRO - Waters <br />Batch number: 02308A16B <br />TPH-GRO - Waters <br />Batch number: 02309A53A <br />TPH-GRO - Waters <br />Batch number: 023100040A <br />Methanol (by Direct Injection) <br />Batch number: 023100041A <br />Methanol (by Direct Injection) <br />Batch number_ 023100042A <br />Methanol (by Direct Injection) <br />Batch number: N023051AB <br />j Ethanol <br />k Methyl t -butyl ether <br />di -Isopropyl ether <br />Ethyl t -butyl ether <br />t -Amyl methyl ether <br />t -Butyl alcohol <br />Benzene <br />112-Dichloroethane <br />Toluene <br />1,2-Dibromoethane <br />sample Matrix Quality Control <br />RPD HRG DUP <br />MS MSD MS/MSD <br />I RPD MAIC Conc Cone <br />$REC %REC Limit@ <br />Sample number(s)- 3933143-3933152 P, <br />105 74-132 <br />Sample number(s): 3933153-3933160 <br />105 74-132 <br />Sample number(s): 3933161-39331'70 <br />106 .74-132 <br />Sample number(O. 3933144 <br />84 96 69-127 13 20 <br />Sample number(s): 3933145-393316 20 <br />84 92 69-127 9 <br />Sample number(s): 3933165-393317 20 <br />108 108 69-127 0 <br />Sample number(s): 3933166-393317G30 <br />90 94 34-163 4 <br />98 99 69-134 1 30 <br />30 <br />92 92 68-133 0 30 <br />,90 92 73-123 2 a <br />93 95 ` 69-116 2 -30 <br />103 103 51-148 0 30 <br />112 113 78-134 0 3.0 <br />105 105 73-136 0 30 <br />115 115 83-127 0 30 <br />30 <br />104 104 78-120 1 <br />*- Outside of specification <br />) The result for one or both determinations was fess than five times the LOQ.:, <br />�1 <br />The background result was more than four times the spike added. <br />Lancaster Laboratories, Inc. <br />E B E H 2475 New HDIIand Pike <br />P4 Box 12425 <br />Lancaster, PA 17605-2425 <br />717-656-2300 Fax:717-656-2681 <br />RPD RPD Max <br />� k <br />DUP s DUP <br />RPD <br />RPD Max <br />-5 2.216 Rev. 9/11/00 <br />