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Lancaster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike PO Box 12425 Lancaster PA 17605-2425 717 656-2300 Fax 717 656 2681•www Eancasterlabs Com <br /> Page 1 of 5 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 908109 <br /> Reported 08/30/04 at 09 38 AM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted In these situations,to demonstrate precision and accuracy at <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified in the <br /> method <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MIDI, Units %REC %REC Limits RPD RPD Max <br /> Batch number 042300018A Sample number(s) 4332337-4332347 <br /> TPH - DRO CA LUFT (Waters) N D 50 ug/l 86 89 61-126 3 20 <br /> Batch number 042300029A Sample number s) 4332337-4332347 <br /> Total TPH N ❑ 40 ug/l 82 85 43-119 3 20 <br /> TPH Motor Oil C16-C36 N D 40 ug/l <br /> Batch number 0423IA07A Sample number(s) 4332336-4332337 <br /> TPH-GRO - Waters N D 50 u9/1 92 94 70-130 2 30 <br /> Batch number 04231A07B Sample number(S) 4332338-4332347 • <br /> TPH-GRO - Waters N D 50 u9/1 92 94 70-130 2 30 <br /> Batch number 042320025A Sample number(s) 4332337-4332347 <br /> Methanol (by Direct Infection) N D 200 ug/1 108 76-119 <br /> Batch number Z042361AA Sample number(S) 4332336-4332342,4332344-4332345 <br /> -Ethanol_Ethanol N D 50 mug/1 99 46-145 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 90 77-127 <br /> di-Isopropyl ether N D 0 5 ug/l 98 67-130 <br /> Ethyl t-butyl ether N D 0 5 ug/l 92 74-120 <br /> t-Amyl methyl ether N D 0 5 ug/l 86 79-113 <br /> t-Butyl alcohol N D 5 u9/1 85 57-141 <br /> Benzene N D 0 5 ug/l 96 85-117 <br /> 1 2-Dichloroethane N D 0 5 ug/l 102 77-132 <br /> Toluene N D 0 5 ug/1 98 85-115 <br /> 1 2-I)ibrcmoethane N D 0 5 ug/l 94 81-114 <br /> Ethylbenzene N D 0 5 ug/l 99 82-119 <br /> Xylene (Total) N D 0 5 ug/l 96 83-113 <br /> Batch number Z042371AA Sample number(s) 4332343 4332345-4332347 <br /> Ethanol N D 5o ug/l 103 46-145 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/l 91 77-127 <br /> d1-Isopropyl ether N D 0 5 ug/1 96 67-130 <br /> Ethyl t-butyl ether N D 0 5 ug/1 92 74-120 <br /> t-Amyl methyl ether N D 0 5 ug/l Be 79-113 <br /> t-Butyl alcohol N D 5 ug/l 67 57-141 <br /> Benzene N D 0 5 ug/l 91 85-117 <br /> 2,2-Dlchlcroethane N D 0 5 ug/1 101 77-132 <br /> Toluene N D 0 5 ug/l 93 85-115 <br /> 1,2-Dibrcmoethane N D 0 5 u9/1 92 81-114 <br /> Ethylbenzene N D 0 5 ug/l 94 82-119 <br /> Xylene (Total) N D 0 5 ug/l 90 83-113 <br /> *-Outside of specification <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 />