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Lancaster Analysis Report <br /> • Laboratories Y p <br /> 2425 New Holland Pike PO Box 12425 Lancaster PA 17605-2425•717 656-2300 Fax 717-656 2681 www IancaslerEabS COm <br /> Page 2 of 5 <br /> Quality Control Summary <br /> Client Name ChevronTexacc Group Number 908109 <br /> Reported 08/30/04 at 09 36 AM <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD ERG PUP PUP Dup RPA <br /> Analysis Name %REC %REC Limits RPD MAX Cone Conc RPD Max <br /> Batch number 04231AOIA Sample number(s) 4332336-4332337 <br /> TPH-GRO - Waters 107 63-154 <br /> Batch number 0423IA07B Sample number(s) 4332338-4332347 <br /> TPH-GRO - Waters 107 63-154 <br /> Batch number 042320015A Sample number(s) 4332337-4332347 <br /> Methanol (by Direct in3ection) 108 104 72-122 4 20 <br /> Batch number Z042361AA Sample number(s) 4332336-4332342,4332344-4332345 <br /> Ethanol 104 96 33-153 8 30 <br /> Methyl Tertiary Butyl Ether 91 92 69-134 1 30 <br /> di-Isopropyl ether 101 101 75-130 0 30 <br /> Ethyl t-butyl ether 93 95 78-119 2 30 <br /> t-Amyl methyl ether 89 91 77-117 3 30 <br /> t-Butyl alcohol 85 B6 51-147 1 30 <br /> Benzene 100 101 83-128 I 30 <br /> 1,2-Dichloroethane 106 106 73-136 1 30 <br /> •Toluene 101 102 83-127 1 30 <br /> 1,2-D3.bromoethane 93 95 76-120 2 30 <br /> Ethylbenzene 102 102 82-129 1 30 <br /> Xylene ;Total) 96 98 82-130 2 30 <br /> Batch number Z042371AA Sample number(s) 4332343 4332345-4332347 <br /> Ethanol 102 102 33-153 1 30 <br /> Methyl Tertiary Butyl Ether 94 91 69-134 2 30 <br /> di-Isopropyl ether 101 100 75-130 I 30 <br /> Ethyl t-butyl ether 95 93 78-119 1 30 <br /> t-Amyl methyl ether 89 86 77-117 3 30 <br /> t-Butyl alcohol (2) (2) 51-147 1 30 <br /> Benzene 99 97 83-128 2 30 <br /> 1,2-Dichlcrcethane 106 103 73-136 2 30 <br /> Toluene 100 99 63-12'7 2 30 <br /> 1 2-Dibromoethane 93 92 78-120 2 30 <br /> Ethylbenzene 101 100 82-129 2 30 <br /> Xylene (Total) 96 95 82-130 1 30 <br /> Surrogate Quality Control <br /> Analys>,s Name TPH - DRO CA LUFT (Waters) <br /> Batch number 042300018A <br /> Orthoterphenyl <br /> 4332337 Be <br /> 4332338 89 <br /> 4332339 90 <br /> 4332340 93 <br /> 4332341 86 <br /> 4332342 85 <br /> *-Outside of specification <br /> (1) The result for one or both determinations was less than five times the LOQ <br /> 0 (2) The background result was more than four times the spike added <br />