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i <br /> y <br /> Lancaster <br /> *Laboratories Anal sis Re port <br /> Y . <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605.2425•717-656-2300 Fax:717-656-2661•www.lancasterlabs.com_v � <br /> Page 2 of 5 i <br /> Quality Control Summary ;,. f ;P ; <br /> Client Name: ChevronTexaco Group Number: 886605 .. <br /> Reported: 03/12/04 at 09:.33 Ate - <br /> YS ` <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report k LCS LCSD "LCS/LCSD <br /> Analysis Name Result MDL Unita.'. %REC<''_ %RECLimits aq _RPD RPD Max,. i <br /> Batch number: P040684AA Sample number(s) '422562'5' <br /> Methyl Tertiary Butyl Ether N.D. 2. ug/1 100 77-127 ` . <br /> Benzene N.D. .5 ug/l 102' 85-117 <br /> Ethplbenzehe <br /> N.D. .5 ug/l I „98 85-115 <br /> N-'D'. .5 uG/l '99 82=`119 <br /> Xylene (Total) t'N.D. ' ' ; '.5 .ug/1' >; 100 84-120 <br /> s Sample Matrix Quality Control <br /> I <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> Y RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number: 040620020A Sample number(s) : 4225826-4225828 ' <br /> Methanol (by Direct Injection) 107 100 73-117 7 20 <br /> - i <br /> Batch number: b40620021A Sample number(s) : 4225829-4225835 <br /> Methanol (by Direct Injection) 100 100 73.-117. 0 20 J <br /> Batch number: 04063AOSA Sample number(s) : 4225832 �y <br /> TPH-GRO - Waters 112 115 63-154 2 30 [ <br /> Batch number: 04063AOSC Sample number(s) :'4225825-4225831,4225833 J <br /> TPH-GRO - Waters 112 115 63-154 2 30 <br /> Batch number: 04064A08A Sample number(s) : 4225834 I 3 <br /> TPH-GRO - Waters 131 63-154 „h <br /> Batch number: 04064A08B Sample number(s) i 4225835 <br /> TPH-GRO - Waters r 131 63-154 ' <br /> Batch number: P040681AA Sample number(s) : 42258.26-4225632 <br /> Ethanol 96 93 41-155 '3 30 <br /> Methyl Tertiary Butyl Ether 99 97 69-134 1 30 <br /> di-Isopropyl ether 99 100 75-130 1 30 " <br /> Ethyl t-butyl ether 96 97 78-119 f . .0 30 <br /> t-Amyl methyl ether 96 100 77-117 2 30 <br /> t-Butyl alcohol 110 108 51-147 31 30 <br /> Benzene 103 103 83-128 0 30 <br /> 1,2-Dichloroethane 99 97 73-136 2 30 <br /> Toluene 100 100 83-127 0 30 <br /> 1,2-Dibromoethane 96 95 78•-120 0 30 � +* <br /> Ethylbenzene 102 101 82-129 1 30 <br /> Xylene (Total) , 101 103 82-130 1 30' I <br /> Batch number: P040683AA Sample number(s) :4225833-4225835 <br /> Ethanol 105 96 41-155 10 30 e <br /> Methyl Tertiary Butyl Ether 94 102 69-134 2 30` f <br /> di-Isopropyl ether 99 99 75-130 0 30' <br /> Ethyl t-butyl ether 98 98 78-119 0 30 ' <br /> t-Amyl methyl ether 98 104 77-117 . 2 30 - <br /> t-Butyl alcohol 95 101 51-147 6 30 <br /> Benzene 104 105 83-128 1 30 <br /> 1,2-Dichloroethane 99 98 73-136 1 30 <br /> *-Outside of specification _ <br /> (3) The result for one or both determinations was less than five times the LOQ. 'x <br /> r s* <br /> (2) The background result was more than four times the spike added.' <br />' 1 <br /> a <br /> o- <br /> l <br /> I <br />