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Ana is Reporf <br /> Lancaster Laboratories Page 2 of 3 <br /> Wherequal,t ,s a saence <br /> Quality Control Summary <br /> Client Name Chevron Products Company Group Number 782166 <br /> Reported: 10/29/01 at 09-24 PM <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BKG DUP DUP DUP <br /> RPD <br /> Analysis Name IREC %REC Limits RPD MAX Cone Cone RPD Max <br /> Batch number 012920016A Sample number(s) 3706682-3706683 <br /> Methanol (by Direct In3ectxon) 100 96 78--114 4 20 <br /> Batch number U012881AB Sample numbers) 3706682-3706683 <br /> Ethanol 112 107 70-130 5 30 <br /> Methyl t-butyl ether 98 93 69-134 3 30 <br /> di-Isopropyl ether 102 97 75-128 5 30 <br /> Ethyl t-butyl ether 93 90 73-123 3 30 <br /> t-Amyl methyl ether 99 98 69-126 1 30 <br /> t-Butyl alcohol 107 107 50-157 0 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRD N California (waters) <br /> Batch number. 01288A56 <br /> Trifluorotoluene-F Tri€luorotoluene-P <br /> 3706681 103 96 . <br /> 3706683 103 96 <br /> Blank 103 97 <br /> LCS 116 98 <br /> LCSD 115 98 <br /> MS 118 96 <br /> MSD 114 97 <br /> Limits 65-137 72-134 <br /> Analysis Name TPH-GRO N California (waters) <br /> Batch number 01289A56 <br /> Trifluorotoluene-F Trifluorotoluene-P <br /> 3706682 106 95 <br /> Blank 103 96 <br /> LCS 116 97 <br /> LCSD 115 98 <br /> MS 122 96 <br /> Limits 65-137 72-134 <br /> Analysis Name BTEX + Oxygenates by 8260E <br /> Batch number U012881AB <br /> Dibromofluoromethane 1,2-Oxchloxoethane-d4 Toluene-d8 4-Bromofluorobenzene <br /> 3706682 91 94 94 88 <br /> 3706683 90 89 95 Be <br /> Blank 93 92 93 88 <br /> LCS 94 88 92 91 <br /> MS 95 93 93 88 <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 /> Lancaster laboratories Inc <br /> MEMBER 2425 New Holland Pike <br /> PO Box 12425 <br /> Lancaster PA 17605 2425 <br /> 717-656-2300 Fax 717-656 2681 2216 Rev 9171/00 <br />