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Sequoia 404 Ch�ake Drive Redwood City CA 94063 (650)364 9600 FAX(650) 364 9733 <br /> N 1Niget tante walnut Geek CA 945% (925)988 9600 FAX(925)988-%73 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)921.0 too <br /> 455 Blvd <br /> 865 rAX(707) 797-034Z <br /> � Analytical 1551 Industrial t(Road North Ste 17 Sen lea os CA 94070 41 11 (650) 232 urna CA 94954 (707�792 9600 FAX(650) 232 9612 <br /> I <br /> OR International Project ARCO 2093 Tracy CA Sampled 5120/99 <br /> 2 Business Park Drive Ste 100 Project Number N/A Received 5120/99 <br /> amento,CA 95827 Project Manager Rusty Benkosky Reponed 6/4/99 <br /> Total Purgeable Hydrocarbons(C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result /)nits Note <br /> Inlzuen! S205279-01 Ali <br /> Purgeable Hydrocarbons 9050328 5/21/99 5/21199 500 206 mg/rr'Air t D <br /> Benzene <br /> Toluene 0 250 4 275 p Ethylbenzene 0 750 1 43 p0 250 1 28 D <br /> Xylenes(total) 0 250 16 4 D <br /> Methyl tert butyl ether 2 50 ND D <br /> Surrogate a a a-7Trifluorotoluene 600-140 78 5 lye, <br /> Ff.uji1 5905779-02 <br /> Purgeable Hydrocarbons 9050328 5121/99 5121199 [00 22 7 mg/m'Air I <br /> Benzene 0 Q500 ND <br /> Toluene 00500 0 0586 <br /> Ethylbenzene 00500 0 121 <br /> lenes(total) 0 0500 17l <br /> ,gillighyl tent-butyl ether 0 500 ND <br /> ogare a a a Tnfluorotaluene 600-140 72-0 % <br /> Via Araiy' ca!-Spera[rten[o � -'-- --— — --- - —' <br /> 'Refer 10 end of report for text of notes and defi-lu-4 <br /> Sandra R Hanson Client Services Representative Page 2 of 6 <br />