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Analysis Report <br /> Lancaster Laboratories Page 2 of 4 <br /> iwhere qualrty is a science <br /> Quality Control Summary <br /> Client Name Chevron Products Company Group Number 796435 <br /> Reported 03/04/02 at 03 12 PM <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP DUP <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Cone Conc RPD Max <br /> Batch number 020520020A Sample number(s) 3771943 <br /> Ethanol (by Direct In3ection) 76 80 60-140 5 20 <br /> Methanol (by Direct In3ection) 88 88 60-140 0 20 <br /> Batch number D020431AB Sample number{s) 3771934-3771935 <br /> Methyl t-butyl ether 95 95 52-150 0 30 <br /> di-Isopropyl ether 95 95 57--139 1 30 <br /> Ethyl t-butyl ether 95 96 53-148 0 30 <br /> t-Amyl methyl ether 96 96 52-144 0 30 <br /> t-Butyl alcohol 93 89 17-199 5 30 <br /> 102-Dicbloroethane 103 99 59-144 3 30 <br /> 1,2-Dibromoethane 98 95 45-140 3 30 <br /> Batch number D020432AA Sample number(s) 3771936-3771943 <br /> Methyl t-butyl ether 93 94 52-150 1 30 <br /> dl-Isopropyl ether 91 90 57-139 1 30 <br /> Ethyl t-butyl ether 90 91 53-148 1 30 <br /> t-Amyl methyl ether 92 93 52-144 2 30 <br /> t-Butyl alcohol 91 86 17-199 6 30 <br /> 1,2--Dichloroethane 96 94 59-144 2 30 <br /> is2-Dibromoethane 95 94 45-140 2 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Soils <br /> Batch number 02044A33 <br /> Trifiuorotoluene-F Trifluorotoluene-P <br /> 3771934 90 100 <br /> 3771935 85 103 <br /> 3771936 87 96 <br /> 3771937 88 96 <br /> 3771938 64 94 <br /> 3771939 83 94 <br /> 3771940 79 90 <br /> 3771941 73 88 <br /> 3771942 84 96 <br /> 3771943 83 93 <br /> Blank 100 109 <br /> LCS 113 111 <br /> MS 93 102 <br /> MSD 96 104 <br /> Limits 61-127 68-122 <br /> Analysis Name Methanol and Ethanol <br /> Batch number 020460015A <br /> *-Outside of specification <br /> �1} <br /> 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 /> Lancaster Laboratories Inc <br /> M E M 13 E R 2425 New Holland Pike <br /> ® PO Box 12425 <br /> Lancaster PA 17605 2425 <br /> 717-656-2300 Fax 717-656 2681 2216 Rev 9/11100 <br />