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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> 404 N Wlget Lane Walnut Creek CA 94598 (9Z5)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 /> uoia-Redwood City Project Mei Mei Shin Sampled 3/19/99 <br /> Chesapeake Drive Project Number 9903B91(Blaine) Received3/30/99 <br /> wood City,CA 94063 Project Manager Mei Mei Shin Reported 4/1199 <br /> Sample Description 9903B91-02 <br /> Laboratory Sample Number L903298-02 <br /> Batch Date Date Specific Method/ Reporting <br /> Analyte Number Prepared Analyzed Surrogate Limits Limit Result Units 7Notes* <br /> Sequoia Analytical-San Carlos <br /> Total Pur eable Hydrocarbons C6-C12 BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarhons as Gasoline 9040002 4/1/99 4/1/99 1000 1650 ug/l ] <br /> Benzene " " It 100 358 " <br /> Toluene " " to <br /> 100 ND It <br /> Ethylbenzene 100 ND " <br /> Xylenes(total) 100 ND " <br /> Methyl tert-butyl ether 100 173 " <br /> Surrogate a,a,a-Trifluorotoluene 700-130 879 % <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A <br /> Ethanol 9030147 3/30/99 3/30/99 3000 ND ug/1 <br /> Tert-butyl alcohol " " " 200 ND " <br /> Methyl tert-butyl ether " 200 12 0 It <br /> Di-isopropyl ether " " " 200 ND It <br /> 0 yl tert-butyl ether to " " 200 ND " <br /> -amyl methyl ether " to 200 ND " <br /> Surrogate 1 2-Dichloroethane-d4 760-114 992 % <br /> quoia Analytical- San Carlos *Refer to end of report for text of notes and definitions <br /> ,��# Page 3 of 9 <br /> ' <br />