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680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233Sequoia 9V <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(92 5)988-9673 <br /> �1 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-010 0 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707) 792-1865 FAX(707)792-0342 <br /> M ti's <br /> Blaine Technical Services,Inc Project Shell Oil Co Sampled 3111199 <br /> 1680 Rogers Ave Project Number 341 East Main St,Ripon/990311-L1 Received 3115199 <br /> San dose,CA 95112 Pro ect Mana er Fran Thie Reported 3/26/99 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M/8020M <br /> Sequoia Analytical-Petaluma <br /> Batch Date Date Surrogate Reporting <br /> lAnalyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> EW-2(continued) P903469-05 Water <br />_Benzene 903054513/23/99 3124199 0 500 ND—ug/1 <br /> Toluene " " " 0 500 ND " <br /> Ethylbenzene t, <br /> It <br /> to 0 500 ND " <br /> Xylenes(total) 1. 0 500 ND " <br /> Methyl tert-butyl ether IF <br /> 200 ND " <br /> Surrogate a,a a-Tnfluorotoluene IF 650-135 977 % <br /> Surrogate 4-Bromofluorobenzene 650-135 106 " <br /> Sequoia Analytical-Petaluma *Refer to end ofreportfor text ofnotes and definitions <br /> Page 3 of 9 <br />