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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 /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)911-0100 <br /> 1455 McDowen Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Project UnocaVrosco Sampled 211199 to 212199 <br /> Digital Dr Suite 6 Project Number 227903/Unocal 5098 Received 2/3199 <br /> Novato,CA 94949 Project Manager Mark Dockum Reported 2/18/99 <br /> mple Description: SP1-(14)Composite <br /> laboratory Sample Number, P902106-33 <br /> Batch Date Date Specific Method/ Reporting <br />'tal,yte Number Prepared Analyzed Surm ate Llrrnts Limit Result Units Notes* <br /> SeQuoia Analytical-Petaluma <br /> otal Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M/8020M <br /> asollae 9020325 2/13/99 2114199 0 400 104 mglkg <br /> Benzene 000200 ND " <br /> luene 000200 ND <br /> hylbenzene 000200 00718 " <br /> Xylenes(total) 000400 0 298 " <br /> ethyl tert-butyl ether 00100 ND " <br /> arrogate a a a-Trlfluorotoluene 650-135 101 <br /> rrogate 4-Bromofluorobenzene 650-135 900 " <br /> tai Metals by EPA 6000/7000 Series Methods <br /> ad 9020209 2/10199 2/10/99 EPA 6010A 750 ND mg/kg <br /> fria Analytical-Petaluma *Refer to end ofreport for text ofnotes and definitions <br /> Page 18 of 24 <br /> Ina <br /> rna <br />