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l 19 <br /> Page 1 of 3 <br /> E � i <br /> Quality Control Summary <br /> Client Name: ChevronTekaco Group Number: -918567 <br /> Reported: 11/09/04 at 12:27 PM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted. In these situations,toidemonstrate precision and accuracy at <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified in the <br /> method. <br /> `i i Laboratory Compliance Quality Control <br /> =I <br /> I Blank Blank Report LCS LCSD LCS/LCSD <br /> AnalAnal s+ ie'Name Irr Result MDL Units $REC %REC Limits RPD RPD Max <br /> Batch number: 04306A56A } Sample number(s) : 4391583-4391584 <br /> - TPH-GRO - WatersN.D. 50. u 1 115 118 70-130 <br /> I 9/ 2 30 <br /> Batch number: Z043111AA Sample number(s) : 4391584 <br /> Ethanol N.D. 50. ug/1 71 46-145 <br /> Methyl,Tertiary Butyl Ether N,D. 0.5 ug/1 96 77-127 i <br /> ' di-isopropyl ether N.D. 0.5 ug/1 98 67-130 <br /> Ethyl t-butyl ether i N.D. 0,5 ug/1 97 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/1 96 79-113 <br /> t-Butyl alcohol i N,D. 5. ug/1 89 57-141 <br /> ��� Benzene N.D. 0.5 ug/1 98 85-117 <br /> 1.) 1,2-Dichloroethane N.D. 0,5 ug/l 107 77-132 <br /> Toluene I N.D. 0.5 ug/1 98 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/1 94 81-114 "I <br /> Ethyibenzene I N.D. 0.5 ug/1 101. 82-119 <br /> Xylene (Total) if N.D. 0.5 ug/1 99 83-113 <br /> Batch number: Z043131AA Sample number(s) : 4391583 <br /> Ethanol N.D. 50. ug/1 78 46-145 <br /> Methyl'Tertiary Butyl Ether N.D. 0.5 ug/l 96 77-127 <br /> di-Isopropyl ether N.D. 0.5 ug/1 96 67-130 <br /> Ethyl t-butyl ether I N.D. 0.5 ug/l 97 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/l 97 79-113 <br /> t-Butyl alcohol f N.D. 5. ug/l 87 57-141 <br /> Benzene N.D. 0.5 ug/l 94 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 106 77-132 <br /> fEF� Toluene N.D. 0.5 ug/1 96 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/l 95 81-114 i <br /> Ethylbenzene N.D. 0,5 ug/1 98 82-119 <br /> Xylene, (Total) N.D. 0.5 ug/l 97 83-113 <br /> 7 <br /> ? A � <br /> Sample Matrix Quality Control <br /> I <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup RPD <br /> Analysis Name 96REC %R6C Limits RPD MAX Couc Cone RPD Max w <br /> Batch number: 04306A56A Sample number(s) : 4391583-4391584 <br /> TPH-GRO - Waters 1 116 63-154 <br /> Batch number; Z043111AA i Sample number(s) ; 4391584 <br /> Ethanol i 82 67 33-153 20 30 <br /> :a <br /> *-Outside of specification F <br /> (1) The result for one or both determinations was less than five times the LOQ. <br /> (2) The background result was more than four times the spike added. <br /> k <br /> ' 4 <br /> i <br />