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Lancaster Laboratories Page I of 2 <br />WherW TI�YS& xol St=ary <br />Client Name: ChevronTexaco <br />MSD <br />MS/MSD <br />Group <br />Number: <br />817282 <br />Reported: 08/05/02 at 08:25 <br />PM <br />RPD <br />MAX Conc <br />Sample <br />number(s): 3869238-3869242 <br />104 <br />Laboratory Compliance Quality <br />58-137 <br />Control <br />Analysis Name <br />Blank <br />Blank <br />Report <br />LCS <br />LCSD <br />LCS/LCSD <br />Result <br />MDL <br />Units <br />%REC <br />%REC <br />Limits <br />Batch number: 022140007A <br />Methanol (by Direct Injection) <br />Sample <br />number(s): <br />3869238-3869242 <br />106 <br />69-134 <br />0 <br />N.D. <br />200. <br />ug/1 <br />96 <br />1 <br />64-130 <br />Batch number: 02214ASlA <br />TPH-GRO <br />Sample <br />number(s): <br />3869238-3869242 <br />30 <br />97 <br />- Waters <br />N.D. <br />50. <br />ug/1 <br />89 <br />94 <br />74-116 <br />Batch number: N022121AB <br />Ethanol <br />Sample <br />number(s): <br />3869238-3869243 <br />78-134 <br />0 <br />30 <br />Methyl t -butyl ether <br />N.D. <br />N.D. <br />50. <br />ug/l <br />ug/1 <br />72 <br />104 <br />108 <br />43-159 <br />di -Isopropyl ether <br />N.D. <br />.5 <br />.5 <br />ug/1 <br />120 <br />78-120 <br />77-127 <br />Ethyl t -butyl ether <br />N - D. <br />.5 <br />ug/l <br />101 <br />30 <br />74-125 <br />t -Amyl methyl ether <br />N.D. <br />,5 <br />ug/l <br />93 <br />74-120 <br />t -Butyl alcohol <br />N -D. <br />S. <br />ug/1 <br />64 <br />71-114 <br />Benzene <br />1,2-Dichloroethane <br />N.D. <br />.5 <br />ug/1 <br />106 <br />59-139 <br />85-117 <br />Toluene <br />N.D. <br />N.D. <br />.5 <br />.5 <br />ug/l <br />ug/1 <br />114 <br />104 <br />77_132 <br />1,2-Dibromoethane <br />N.D. <br />.5 <br />ug/1 <br />85 <br />85-115 <br />Ethylbenzene <br />N -D. <br />.5 <br />ug/1 <br />106 <br />81-114 <br />Xylene (Total) <br />N.D. <br />82-119 <br />.5 <br />ug/1 <br />104 <br />84-120 <br />clysis Name <br />Batch number: 022140007A <br />Methanol (by Direct Injection) <br />Batch number: 02214A51A <br />TPH-GRO - Waters <br />Batch number: N022121AB <br />Ethanol <br />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 />1,2-Dichloroethane <br />Toluene <br />1,2-Dibromoethane <br />Ethylbenzene <br />Xylene (Total) <br />Sample Matrix Quality Control <br />MS <br />MSD <br />MS/MSD <br />RPD BRf3 <br />%REC <br />?6REC <br />Limits <br />RPD <br />MAX Conc <br />Sample <br />number(s): 3869238-3869242 <br />104 <br />100 <br />58-137 <br />4 <br />20 <br />Sample <br />number(s): <br />3869238-3869242 <br />103 <br />74-132 <br />Sample <br />number(s). <br />3869238-3869243 <br />68 <br />67 <br />34-163 <br />1 <br />30 <br />105 <br />106 <br />69-134 <br />0 <br />30 <br />121 <br />122 <br />68-133 <br />1 <br />30 <br />101 <br />103 <br />73-123 <br />2 <br />30 <br />97 <br />97 <br />69-118 <br />1 <br />30 <br />64 <br />63 <br />51-148 <br />1 <br />30 <br />112 <br />111 <br />78-134 <br />0 <br />30 <br />218 <br />118 <br />73-136 <br />0 <br />30 <br />108 <br />107 <br />83-127 <br />1 <br />30 <br />86 <br />84 <br />78-120 <br />2 <br />30 <br />113 <br />111 <br />82-134 <br />1 <br />30 <br />110 <br />108 <br />82-130 <br />1 <br />30 <br />Surrogate Quality Control <br />Analysis Name: Methanol and Ethanol <br />Batch number: 022140007A <br />Acetone <br />3869238 99 <br />3869239 105 <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 E M B E R 24Z5 New Holland Pike <br />PO Sox 12425 <br />Lancaster, PA 17605-247.5 <br />717-656-2300 Fax: 717-656-2681 <br />DUP <br />Cone <br />RPD RPD Max <br />5 <br />DUP <br />RPD <br />30 <br />Dup <br />RPD <br />Max <br />2216 Rev, 9/11100 <br />