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Analysis Report <br /> Lancaster Laboratories Page 1 of 2 <br /> Where quaktyIs a science <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 812548 <br /> Reported 06/28/02 at 11 23 AM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Unita %REC %REC Limits RPD RPD Max <br /> Batch number 02178A16A Sample number(s) 3841684-3841687 <br /> TPH-GRO - Waters N D 50 ug/1 92 96 76-126 4 30 <br /> Batch number P021771AA Sample number(s) 3841684-3841687 <br /> Methyl t-butyl ether N D 5 ug/1 109 77-127 <br /> Benzene N D 5 ug/l 105 84-120 <br /> Toluene N D 5 ug/1 102 86-123 <br /> Ethylbenzene N D 5 ug/1 106 88-124 <br /> Xylene (Total) N D 5 ug/l 109 89-124 <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 Conc Conc RPD Max <br /> Batch number 0217BA16A Sample number(s) 3841684-3841687 <br /> TPH-GRO - Waters 104 106 74-132 1 30 <br /> Batch number P022771AA Sample number(s) 3841684-3841687 <br /> Methyl t-butyl ether 107 109 69-134 2 30 <br /> Benzene 108 107 78-134 1 30 <br /> *oluene 108 108 78-133 0 30 <br /> ,hylbenzene 111 110 82-134 1 30 <br /> ylene (Total) 114 113 81-136 1 30 <br /> Surrogate Quality Control <br /> Analysis Name TPH-GRO - Waters <br /> Batch number 02178A16A <br /> Trifluorotoluene-F <br /> 3841684 100 <br /> 3841685 100 <br /> 3841686 100 <br /> 3841687 100 <br /> Blank 99 <br /> LCS 114 <br /> LCSD 115 <br /> MS 118 <br /> MSD 118 <br /> Limits 67-135 <br /> Analysis Name BTEX + Oxygenates by 82608 <br /> Batch number P021771AA <br /> Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-de 4-Bromofluorobenzene <br /> 3841684 103 97 98 93 <br /> 3841685 103 97 98 93 <br /> 3841686 104 96 98 92 <br /> 3841687 104 99 97 95 <br /> Blank 104 97 96 94 <br /> LCS 100 95 102 103 <br /> *-Outside of specification <br /> 01) 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 /> m F m B E R 2425 New Holland Pike <br /> PO Box 12425 <br /> C` Lincister PA 17605 2425 <br /> 717 656 2100 F-)x 717 656 2681 2216 Fiev 9/11/00 <br />