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al'YS - ° ® <br /> Lancaster Laboratories - 'f Page 2 of <br /> Whe qu lityis a ren e. <br /> ua�ity Eon�trol Summary - <br /> f. <br /> Client Name: Chevron Products Company Group'Number: 797964 <br /> Reported: 03/11/02 at 03:57 PM <br /> Sample Matrix° Quality Control <br /> MS MSD MS/MSD RPD EKG DUP DUP DUP <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Cone Cone RPD Max <br /> Batch number: 02057A56B Sample number(s) : 3777978 3777979 <br /> TPS-GRO - Waters' 93 `74-132 - <br /> Batch number: 020600014A Sample number(s) t 3777979=3777987 <br /> Methanol (by Direct Injection) 112 112 58-137 0 20 <br /> I <br /> Batch number: V020561AA Sample number(s) :' 3777979-3777981 <br /> Ethanol 96 107 70-130 11 30 <br /> Methyl t-butyl ether 101 92 69-134 9 30 <br /> di-Isopropyl ether 106 98 68-133 8 30 <br /> Ethyl t-butyl ether 104 96 73-123 9 30 <br /> t-Amyl methyl ether 102 94 69-118 9 30 i <br /> t-Butyl alcohol 102 98 51-146 5 30 <br /> Benzene 106 97 78-134 10 30 <br /> 1,2-Dichloroethane 109 100 75-141 9 30 I <br /> Toluene 105 98 78-133 8 30 <br /> 1,2-Dibromoethane 102 93 78-120 10 30 <br /> i <br /> Ethylbenzene 107 96 82-134 11 30 <br /> Xylene (Total) 105 95 81-136 11 30 <br /> Batch number: V020561AB Sample number(s) : 3777978,3777982-3777987 <br /> Ethanol 96 107 70-130 11 30 <br /> Methyl t-butyl ether 10.1 92 69-134 • " 9 30 - _ <br /> di-Isopropyl ether 106 98 66-133 ' 8 30 <br /> Ethyl t-butyl ether 104 96 73-123 9 30 <br /> t-Amyl methyl ether 102 94 69-118 9 30 <br /> t-Butyl alcohol 102 98 51-148 5 30 I <br /> Benzene 106 97 78-134 10 30 <br /> 1,2-Dichloroethane 109 100 75-141 9 30 <br /> Toluene 105 98 78-133 ` 8 30 <br /> 1,2-Dibromoethane 102 93 78-120 10 30 <br /> .Ethylbenzene 107 96 82-134 11 30 ' <br /> Xylene (Total) 105 95 81-136 11 30 <br /> c <br /> Batch number: V020561AC Sample number(s) : 3771986 <br /> Methyl t-butyl ether 101 92 69-134 9 -30 <br /> I <br /> Surrogate Quality Control <br /> Analysis Name: TPH-GRO - Waters <br /> Batch number: 02057A16A <br /> Trifluorotoluene-F. <br /> 3777980 82 <br /> 3777981 84 <br /> 3777982 91 I <br /> 3777983 81 <br /> 3777984 107 <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 /> i <br /> Lancaster Laboratories,Inc. <br /> M E M B 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.9/11109 <br />