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Lancaster rt <br /> Laboratories Analysis Repo <br /> 2425 New Holland Pike PO Box 12425 Lancaster PA 1760-1,-2425•717 656 2300 Fax 717 656 2681•Www Iancasterlab5 com <br /> Page 1 of 3 <br /> Quality Control Summary <br /> Client: Name ChevronTexaco Group Number 905019 <br /> Reported 08/05/04 at 10 24 AM <br /> Matnx QC may not be reported If site-specific QC samples were not <br /> submitted In these situations,to demonstrate precision and ac.cuiacy at <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified to the <br /> method <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analyais Name Result MDL Units %REC RHC Limits RPD RPD Max <br /> Batch number 0420BA16A Sample number(s) 4316921-4316923 <br /> TPH-GRO - Waters N D 5o u9/1 99 96 70-130 3 30 <br /> Batch number 04209A07A Sample number(s) 4316920 <br /> TPH-GRO - Waters N D 50 ug/l 102 98 70-130 4 30 <br /> Batch number 042150026A Sample number(s) 4316921-4316923 <br /> Methanol (by Direct Injection) N D 1000 u9/1 100 76-119 <br /> atch number N042111BB Sample number(s) 4316920-4316923 <br /> thanol N D 500 ug/1 108 135 46-145 22 30 <br /> Methyl Tertiary Butyl Ether N D 2 ug/1 112 114 77-127 2 30 <br /> di-Isopropyl ether N D 2 ug/1 109 112 67-130 2 30 <br /> Ethyl t-butyl ether N D 2 ug/1 104 107 74-120 3 30 <br /> t-Amyl methyl ether N D 2 ug/1 102 105 79-113 2 30 <br /> t-Butyl alcohol N D 100 ug/1 107 114 57-141 6 30 <br /> Benzene N D 5 ug/l 107 109 85-117 2 30 <br /> 1,2-Dichloroethane N D 2 ug/l 113 115 77-132 2 30 <br /> Toluene N D 5 ug/1 103 107 85-115 4 30 <br /> 1,2-Dibromoethane N D 2 ug/l 104 107 61-114 3 30 <br /> Ethylbenzene N D 5 ug/1 99 103 82-119 4 30 <br /> Xylene ;Total) N D 5 ug/1 101 104 84-120 3 30 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BRG DUP DUP Dup RPD <br /> Analysis %REC %RSC Lsmsts RPD MAX Conc Conc RPD Max <br /> Batch number 0420BA16A Sample number(s) 4316921-4316923 <br /> TPH-GRO - Waters 107 63-154 <br /> Batch number 04209A07A Sample number(s) 4316920 <br /> TPH-GRO - Waters 106 63-154 <br /> Batch number 042150026A Sample numberis) 4316921-4316923 <br /> Methanol (by Direct Injection) 100 100 72-122 0 20 <br /> Batch number N042111BB Sample number(s) 4316920-4316923 <br /> Ethanol 105 41-155 <br /> Methyl Tertiary Butyl Ether 113 69-134 <br /> dl-Isopropyl ether 114 75-130 <br /> Ethyl t-butyl ether 107 78-119 <br /> *-Outside of specification <br /> (1) The result for one or both deterr111nattons was less than five times the LOQ <br /> �2) The background result was more than four times the spike added <br />