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res <br /> Analysis R -pOr' f <br /> Lancaster <br /> Laboratories <br />' Page 2 of 4 <br />' Quality Control Summary <br /> Client Name ChevronTexaco Group Number 872526 <br /> Reported 11/07/03 at 10 50 AM <br /> ' Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC *REC Lima.ts RPD RPD Max <br /> Sample Matrix Quality Control <br /> ' MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> Analysis Name %REC 'kREC L1W1ts RPD MAX Conc RPD <br /> Cone RPD Max <br /> Batch number 03302A55A Sample number(s) 4152395-4152399 <br /> TPH-GRO - Waters 121 63-154 <br /> Batch number 033070007A Sample number(s) 4152395-4152399 <br /> ' Methanol (by Direct In3ection) 104 104 73-117 0 20 <br /> Batch number P033021AA Sample number(s) 4152395 <br /> Ethanol 86 82 38-149 4 30 <br /> Methyl Tertiary Butyl Ether 98 98 69-134 0 30 <br /> '0 di-Isopropyl ether 98 100 75-130 3 30 <br /> Ethyl t-butyl ether 93 94 78-119 1 30 <br /> t-Amyl methyl ether 99 99 77-117 0 30 <br /> t-Butyl alcohol 106 107 44-150 1 30 <br /> ' Benzene 141* 55* 83-128 19 30 <br /> 1,2-Dichloroethane 94 97 73-136 3 30 <br /> Toluene 103 102 83-127 1 30 <br /> 1,2-Dibromoethane 98 98 78-120 1 30 <br /> Ethylbenzene 108 107 82-129 1 30 <br /> Xylene (Total) 105 105 82-130 0 30 <br /> Batch number P033023AA Sample number(s) 4152396-4152398 <br /> Ethanol 88 85 38-149 3 30 <br /> ' Methyl Tertiary Butyl Ether 97 95 69-134 1 30 <br /> di-Isopropyl ether 96 95 75-130 2 30 <br /> Ethyl t-butyl ether 93 92 78-119 2 30 <br /> t-Amyl methyl ether 98 96 77-117 3 30 <br /> t-Butyl alcohol 104 101 44-150 3 30 <br /> ' Benzene 102 102 83-128 0 30 <br /> 1,2-D.ichloroethane 96 94 73-136 2 30 <br /> Toluene 103 101 B3-127 2 30 <br /> 1,2-Dibromoethane 96 95 78-120 1 30 <br /> Ethylbenzene 103 102 82-129 1 30 <br /> Xylene (Total) 104 101 82-130 2 30 <br /> Batch number P033031AA Sample number(s) 4152399 <br /> Ethanol 82 82 38-149 1 30 <br /> ' Methyl Tertiary Butyl Ether 96 96 69-134 0 30 <br /> da.-Isopropyl ether 94 95 75-130 1 30 <br /> Ethyl t-butyl ether 92 92 78-119 0 30 <br /> ' *-Outside of specification <br /> 0 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 /> Lancaster Laboratories Inc <br />' M E M B E R 2425 New Holland Pike <br /> PO Box 12425 <br /> Lancaster PA 17605 2425 <br /> 717 696 2300 !`7Y 717 fiSfi 2681 <br />