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Analysis Report <br /> Lancaster <br /> i Laboratories <br /> Page 2 of 5 <br /> Quality Control Summary <br /> Client Name Chevron'T'exaco Group Number 670430 <br /> Reported: 10/28/03 at 04 07 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Anal sms Name Result ML Units %REC %REC Limits RPD RPD Max <br /> Toluene N D 130 ug/kg 111 81-116 <br /> 1,2-Dibromoethane N D 130 ug/kg 107 77-114 <br /> Ethylbenzene N D 130 ug/kg 111 82-115 <br /> Xylene (Total) N D 130 ug/kg 111 82-117 <br /> Sample Matrax Quality Control <br /> MS MSD MS/MSD RPD BXG DUa DUP Dup <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 032522808A Sample number(s) 4141621-4141626 <br /> TPH - DRO CA LUFT (Soils) 71 55 34-141 26* 20 <br /> Batch number 032522812A Sample number(s) 4141621-4141626 <br /> Ethanol (by Direct In3ection) 79 55* 73-109 36* 20 <br /> 0Methanol (by Direct In3ection) 82 87 61-118 6 20 <br /> Batch number 032535708001 Sample number(s) 4141621-4141626 <br /> Lead 97 96 75--125 1 20 6 91 7 32 6 (1) 20 <br /> Batch number 03253A33A Sample number(s) 4141621-4141626 <br /> TPH-GRO - Soils 87 96 39-118 7 30 <br /> Batch number D032531AB Sample number(s) 4141621-4141623 <br /> Methyl Tertiary Butyl Ether 106 101 57-136 6 30 <br /> di-Isopropyl ether 95 88 55-132 8 30 <br /> Ethyl t-butyl ether 92 87 58-127 7 30 <br /> t-Amyl methyl ether 86 84 58-126 3 30 <br /> t-Butyl alcohol 98 87 20-174 14 30 <br /> Benzene 89 87 52-141 4 30 <br /> 1,2-Dzchloroethane 89 86 57-137 4 30 <br /> Toluene 93 90 53-137 4 30 <br /> 1,2-Dibromoethane 96 93 61-125 5 30 <br /> Ethylbenzene 93 89 50-136 5 30 <br /> Xylene (Total) 93 90 47-139 4 30 <br /> Batch number D032541AA Sample number(s) 4141625-4141626 <br /> Methyl Tertiary Butyl Ether 96 97 57-136 2 30 <br /> dz-Isopropyl ether 87 85 55-132 1 30 <br /> Ethyl t-butyl ether 65 83 58-127 0 30 <br /> t-Amyl methyl ether 78 78 58-126 1 30 <br /> t-Butyl alcohol 78 79 20-174 3 30 <br /> Benzene 88 87 52--141 1 30 <br /> 1,2-Dichloroethane 86 83 57-137 2 30 <br /> Toluene 91 92 53-137 3 30 <br /> *-Outside of specification <br /> (1) The result for one or both determinations was less than five times the LOQ <br /> 02) The background result was more than four times the spike added <br /> Lancaster Laboratories Inc <br /> �4t E M B E R 2425 New Holland Pike <br /> PO Box 12425 <br /> A Lancaster PA 17605 2425 <br /> 711 FSr,)-oon Fw 717 FSF 7FR1 771E Rw,i allnma <br />