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Sequoia 600 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988 9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Iwo- Analytical 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 /> acne Tech Services Project Shell(l) Sampled 4/15/99 <br /> 1680 Rogers Avenue Project Number Shell 2575 Country Club Blvd,Stockton Received 4/16/99 <br /> San Jose,CA 95112 Project Manager Fran Thee Reported 516199 <br /> Sample Description 2452CC PORT <br /> Laboratory Sample Number L904208-05 <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 Pur eable HydrocarbonsW6-C12),BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 90.40104 4/21/99 4/21/99 Soo 800 ug/1 2 <br /> Benzene it0 500 ND " <br /> Toluene '1 0 500 ND " <br /> Ethylbenzene 110 500 ND " <br /> Xylenes(total) 0 500 ND it <br /> Methyl tent-butyl ether 500 ND " <br /> Surrogate a a,a-Tnfluorotoluene 700-130 98 7 % <br /> Volatile Organic Oxygenated Compounds by EPA Metbod 8260A <br /> Ethanol 9040101 4/21/99 4/21/99 3000 ND ug/l <br /> Tert-butyl alcohol " " 200 ND " <br /> Methyl tert-butyl ether 1200 ND " <br /> Di-isopropyl ether 200 ND " <br /> yI tent-butyl ether 200 ND <br /> -amyl methyl ether It <br /> 200 ND <br /> urrogate 1 2-Drchloroethane-d4 760-114 108 % <br /> Amk <br /> nota Analytical- San Carlos *Refer to end of report far text of notes and definitions <br /> �q Page 6 of 32 <br />