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Analysis Report <br /> Lancaster <br /> Laboratories <br /> Page t of 2 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 853947 <br /> Reported 06/03/03 at 12 14 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units $PEC %REC Limits RPD RPD Max <br /> Batch number 03146A34D Sample number(s) 4054072-4054074 <br /> TPH-GRO - Soils N D 1 0 mg/kg 94 70-130 <br /> Batch number D031511AB Sample number(s) 4054072-4054074 <br /> Methyl Tertiary Butyl Ether N D 1 ug/kg 122 75-125 <br /> di-Isopropyl ether N D 1 ug/kg 81 70-129 <br /> Ethyl t-butyl ether N D 1 ug/kg 96 71-124 <br /> t-Amyl methyl ether N D 1 ug/kg 97 70-122 <br /> t-Butyl alcohol N D 20 ug/kg 125 46-156 <br /> Benzene N D 1 ug/kg 101 83-116 <br /> Toluene N D 1 ug/kg 98 81-116 <br /> Ethylbenzene N D 1 ug/kg 94 82-115 <br /> Xylene (Total) N D 1 ug/kg 94 82-117 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> RPD <br /> nal sis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 03146A34D Sample number(s) 4054072-4054074 <br /> TPH-GRO - Soils 104 100 70-130 2 30 <br /> Batch number D031511AB Sample number(S) 4054072-4054074 <br /> Methyl Tertiary Butyl Ether 116 120 57-136 3 30 <br /> di-Isopropyl ether 66 67 55-132 1 30 <br /> Ethyl t-butyl ether 86 88 58-127 2 30 <br /> t-Amyl methyl ether 87 89 58-126 1 30 <br /> t-Butyl alcohol 114 127 14-185 11 30 <br /> Benzene 66 69 52-142 5 30 <br /> Toluene 66 71 53-137 7 30 <br /> Ethylbenzene 53 57 50-136 8 30 <br /> Xylene (Total) 54 57 47-139 6 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Soils <br /> Batch number 03146A34D <br /> Trifluorotoluene-F <br /> 4054072 92 <br /> 4054073 89 <br /> 4054074 83 <br /> Blank 93 <br /> LCS 99 <br /> MS 100 <br /> MSD 98 <br /> Limits 66-117 <br /> *- Outside of specification <br /> 01) The result for one or bath 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 t=M 13 IE R 2425 New Holland Pike <br /> PO Box 12425 <br /> Lancaster PA 17605 2425 <br /> 717 656 23110 Fax 717 656 2681 y»r P." 111nlnI <br />