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Sequoia 680 Chesapeake Drive Redwood Clty CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> 444 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos, CA 94070-4111 (650)232-9600 FAX(650)232 9612 <br /> I <br /> quoia-Redwood City Protect Mei Mei Shin Sampled 3/19/99 <br /> 0 Chesapeake Drive Project Number 9903B91(Blaine) Received 3/30/99 <br /> dwood City,CA 94063 Project Manager Mei Mei Shin Reported 4/1/99 <br /> Sample Description 9903B91-01 <br /> Laboratory Sample Number L903298-01 <br /> Batch Date Date Specific Method/ Reporting <br /> Analyte Number Prepared Analyzed Surrogate Limits Limit Result Units Notes* <br /> Sequoia Analytical-San Carlos <br /> Total Purgeable Hydrocarbons fC6-C121,BTEX and MTBE by DHS L.LI)E'T <br /> Purgeable Hydrocarbons as Gasoline 9030144 3130199 3/30/99 500 423 ug/l 1 <br /> Benzene 0 500 618 " <br /> Toluene 0 500 0 816 " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) It <br /> It 0 500 178 it <br /> Metbyl tert-butyl ether " 11 11 1 <br /> 5 00 103 <br /> Surrogate a a a-Triuorotoluene 700-130 921 <br /> Volatile Oreanic Oxygenated Compounds by EPA Method 8260A <br /> Ethanol 9030147 3/30/99 3/30/99 3000 ND ugll <br /> Tert-butyl alcohol 200 ND " <br /> Methyl tent-butyl ether 200 133 " <br /> Di-isopropyl ether 2 00 ND " <br /> thyl tert-butyl ether 2 00 ND " <br /> rt-amyl methyl ether 200 740 " <br /> urrogate 1,2-Dichlornethane-d4 760-114 994 <br /> quota Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 2 of 9 <br />