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12/08/2003 14:57 9168610430 SECOR PAGE 05/14 <br /> x `.: <br /> :Analysis <br /> REWpOrt <br /> Lancaster <br /> Laboratories <br /> Page 1 of 2 <br /> Quality Control Summary <br /> Client; Name: ChevronTexaco <br /> Group Number: 8731.78 i <br /> Deportee]: 11/04/03 al_ 02:09 PM <br /> i <br /> Laboratory Compliance Quality Control i <br /> 131=k Blank Report LCS LCSD LCS/LGBD <br /> Anal ain Name <br /> .- � Result I-IDL Vnit:s $REG tkREC Limits RPD RL>D Max <br /> Batch number.: 03305AO7C Sample numbt?.r(S) ; 415553-4155624 <br /> TPJ{-GRO - T4,otcrs N.D. 50, uq/1 94 70-130 <br /> Hatch number.: P033071AA Sample number(:) : 415562:3-4155624 <br /> Methyl TerLiary nutyl Ether N-n. 0-5 »q/J. 96 77_177 <br /> di-Isap,ropyl ether N'D' 0.5 oq/l 92 74-125 <br /> tth.yl t-butyl- Ether N.D. 0.5 ug/l 90 14-120 <br /> t-Amyl mer.h,yl ether N.D- 0-5 ug/l. 96 '/9-113 <br /> t-Butyl alcohol, N,D. ti. uq/1 94 53-14.1 <br /> Benzene N.D. 0.5 Ui7/1 96 Bi-111 <br /> 1,2--W.Chloroetha,nr- N-n. 0-5 ug/l 93 '7'7-132 <br /> Toluene N,D. q/J. 96 535-?15 <br /> 1,2-DibrcnnOOthane N.D. 0.� g/1 96 81-1.14 <br /> Ethylbenzene W.D. 0.5 ug/1 9fi 82•.1,1,9 <br /> xylcnr_ (Total,) V,M. 0.5 nq/1 99 RA-1,20 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG 1)t1P &UP DuP <br /> RPD <br /> Analysis Name 41'tEC %REC Limits RPD MMCp>ao COr1C RPJ) <br /> Batch number.: 03305A01C Sample nifatLber(s) : 4155623-4155624 <br /> TPH-GRO - Wa.Lers 109 1.07 61-7.54 0 30 <br /> Batch number: P()33071AA sample numbCr(s) ; 41.5567.3-4155624 <br /> Methyl Tertiary Butyl. Ether 98 9'/ 69-134 1 30 <br /> di-Isopropyl ether 96 9y 75-1,30 0 30 <br /> Ethyl t-butyl ether 92 92 7n-119 0 30 <br /> t-Amyl methyl ether 97 99 '77-117 1 3n <br /> t-Butyl. :alcohol fig 89 44-ISO 0 30 <br /> Benzene. 104 105 B3-1,29 1 30 <br /> 1,2.-Dichlornothane 99 97 7:3-136 3 30 <br /> Toluene 104 103 83-127 0 31) <br /> 1,2-Dibromoethane 97 97 7B-1.2,0 0 30 <br /> Ethylbenzene 104 104 82.-129 1 30 <br /> Xylene (Total.) 106 105 82-130 3. 30 <br /> i <br /> I <br /> Surrogate Quality Control <br /> Analynis Name: TPn-CRO - waters <br /> 56tch number; 03305AO7C <br /> *-Outside of speCification <br /> (1) The result for one or both determinations was less than five tithes the T OCA. <br /> (2) The background result was more than four times the sPi.ke added. <br /> LancasterUboratorir..s,Inc. <br /> M a M B F-R 242S New Holland Pike <br /> smPOBox 17.425 <br /> La <br /> Lancascavtrr,PA 17605-245 <br /> 717-656.73n0 Fax:717-656-2681 <br />