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- 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget lane Walnut Creek.CA 94598 (9Z5)988-9600 FAX(925)988-9673 <br /> U 9 9 Analytical 819 striker Avenue Suite 8 Sacramento 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma. 4954 (707)792-1865 FAX(707)792-0342 <br /> • <br /> m„[,rsssm-nr—�r—m—'^^r^•:._-rrrssr — <br /> Ms:a..LJ.:mL-1 sLi.:....�!ai:s-_�:.a..l.=_—_ »s .»»..:a. s....' ___ :��" �:.... .»»......»..s.u:sws�.u.t _ _"_ - �n s:: .sI:...t....n...»». ...»... — _— sL��=s»..�»».»..».—.M,U—» <br />,30 Gettler Ryan/Geostrategies "� Client Prol ID Former Unocal SS#0187 ^ Sampled 11/10/98 <br />]6747 Sierra ccourt Suite J Sample Descnpt U-1 Received 11/10/98 <br /> 1 Dublin, CA 94568 Matrix UOUID �E <br /> Analysis Method 8015Mod/8020 Analyzed 11/16/98 <br /> Attention Deanna Harding _ Lab Number 9811635-02 _ » » _ Reported 11/23 98 <br /> Purgeable Total Petroleum Hydrocarbons as Gasoline/BTEX/MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas SO 110 <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 050 N D <br /> Toluene .... 0.50 .. - -- .... 2 8 <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Unidentified HC . . .- C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 99 <br />, • <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - EL.AP 41210 <br /> Ask 2 . <br /> Tolgrarlicher <br /> Project Manager Page 2 <br /> az <br />