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Sequoia 6$0 Chesapeake Drive Redwood City CA 94 (650) 364-9600 FAX(650)364-9133 <br /> ID404 N W1get Lane Walnut Creek CA 9459898 (925)988-9600 FAX(925)988-9673 <br /> 14W Ana819 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 /> ISan <br /> eTech Services Project Shell(1) Sampled 4/15/99 <br /> 0 Rogers Avenue Project Number Shell 2575 Country Club Blvd,Stockton Received 4/16/99 <br /> Jose,CA 95112 Project Manager Fran Thie Reported 5/6/99 <br /> Sample Description 2456CC <br /> Laboratory Sample Number L904208-03 <br /> Batcb Date Date Specific Method/ Reporting <br /> lAnalyte Number PLTared Analyzed Surrogate Limits Limit Result Units Notes* <br /> SeQuoia Analytical-San Carlos <br /> Total Pur eable Hydrocarbons C6-Cl2BTEX and MTBE by DHS LUFT <br /> Purgeable Hydrocarbons as Gasoline 9040104 4/21/99 4/21/99 500 ND ug/l <br /> Benzene 0 500 ND " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Methyl tert-butyl ether 5 00 ND " <br /> Surrogate a a,a-Tnfluorotoluene 700-130 975 <br /> Volatile Organic Oxygenated Compounds by EPA Method 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 200 ND " <br /> Di-isopropyi ether 200 ND " <br /> yI tert-butyl ether 2 00 ND " <br /> -amyl methyl ether 2 00 ND _ <br /> Surrogate 1,2-Dichloroethane-d4 760-114 105 <br /> uola Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 4 of 32 <br />