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LancasterAnalysis Report <br /> Laboratories <br /> 2425 New Holland Pike PO Box 12425 Lancaster PA 17605-2425.7~7 656-2300 Fax 717-656-2681 www lancastertabs com <br /> Page 1 of 4 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 965812 <br /> Reported 11/15/05 at 11 25 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 RPD RPD Max <br /> Analysis Name Result ML— Units %REC %RRC Limits <br /> Batch number 05308112601A Sample numbers) 4638637 54-113 <br /> TRPH 416 1 N D 0 40 mg/l 86 <br /> Batch number 05308A07A Sample number(s) 4638628 <br /> TPH-GRO - Waters N D 50 ug/l 103 102 70-130 1 30 <br /> Batch number 0530BA07B Sample number(s) 4638629-4638635 1 30 <br /> TPH-GRO - Waters N D 50 ug/l 103 102 70-130 <br /> �h number OS30SA08A Sample number(s) 4638636-4638637 1 30 <br /> GRO - Waters N D 5o ug/1 114 114 70-130 <br /> Batch number 0$3130003A Sample numberO(s) 46386/313-46386306 g0-120 <br /> Methanol (by Direct In3ection) N D <br /> Batch number 053130009A Sample numbers) 4638629-4638636 0 2D <br /> TPH-DRO CALUFT(Waters) N D 50 ug/1 84 64 59-131 <br /> Batch number Z053082AA Sample number(s) 4638628-4638632,4638637 77-127 <br /> Methyl Tertiary Butyl Ether N D 0 5 ug/1 91 85-117 <br /> Benzene N D 0 5 ug/l 87 <br /> Toluene N D 0 5 ug/l 89 85-115 <br /> 82-119 <br /> Ethylbenzene N D 0 5 ug/1 87 83-II3 <br /> Xylene (Total) N D 0 5 ug/l 90 <br /> Batch number ZOS3113AA Sample number(s) 4638633-4638636 30-155 <br /> Ethanol N D 50 ug/l 908 77-127 <br /> Methyl Tertiary Butyl Ether ND 0 5 ug/1 99 67-130 <br /> di-Isopropyl ether N D 0 5 ug/l 81 <br /> N D 0 5 ug/l 85 74-120 <br /> Ethyl t-butyl ether 79-113 <br /> t-Amyl methyl ether N D 0 5 ug/l 90 60-133 <br /> t-Butyl alcohol N D 5 ug/l 92 85-117 <br /> Benzene N D 0 5 ug/l 89 <br /> N D 0 5 ug/l 78 77-132 <br /> 1,2-Dichloroethane 0 5 ug/1 88 85-115 <br /> Toluene N D81-114 <br /> 1,2-Dibromoethane N D 0 5 ug/l 86 82-119 <br /> Ethylbenzene N D 0 5 ug/l 88 B3-113 <br /> Xylene (Total) N D 0 5 ug/l 95 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup RPD <br /> "-Outside of specification <br /> (1) The result for one or both determinations was less than five times the LOQ <br /> �) The background result was more than four times the spike added <br />