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Sequoia 680 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)92t-9600 FAX(916)921-0100 <br /> 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 /> Blaine Tech Services Project Shell(1) 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 Thte Reported 5/6199 <br /> Sample Description 2454CC <br /> Laboratory Sample Number- L904208-08 <br /> Batch Date Date Specific Method/ Reporting <br /> Analyte Number Prepared Analyzed Surrogate Limits Limit Result Units Notes* <br /> Seauota Analytical-San Carlos <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 9040106 4/21/99 412 t/99 Soo ND ug/l <br /> Benzene " It <br /> " 0 500 ND " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Methyl tert-butyl ether 500 ND " <br /> Surrogate a,a,a-Trifluorotoluene 700-130 78 5 <br /> Volatile Oreanic Oxwenated Compounds by EPA Method 8260A <br /> Ethanol 9040101 4/2//99 4/21/99 3000 ND ug/l <br /> Tert-butyl alcohol It <br /> 11 200 ND " <br /> Methyl tert-butyl ether It <br /> " 200 ND " <br /> Di-isopropyl ether 200 ND " <br /> Ethyl tert-butyl ether 200 ND <br /> Tert-amyl methyl ether 200 ND " <br /> Surrogate I 2-Dichloroethane-d4 760-114 105 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and def nits <br /> Page 9 of 32 <br />