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Sequoia 680 Chesapeake Drive Redwood Cary CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988 9600 FAX(925)988-%73 <br /> Analytical 819 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 /> Gettler Ryan/Geostrategies Client Proj ID ----Unocal SS#5886/2701-W March T—sa–m-pled -09/01/98 - <br /> 6747 Sierra Court Suite J Sample Descrlpt MW-3 Received 09/02/98 = <br /> Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 09/08/98 <br /> Attention Deanna Harding Lab Number 9809049-04 _ _ _ Reported 10/01/98 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br /> Methyl t-Butyl Ether 2 5 6700 <br /> Benzene 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % °o Recovery <br /> Trlfluorotoluene 70 130 $7 <br /> 0 <br /> lnalytes reported as N 0 were nut present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1849 <br /> ro Granlcher <br /> 'rolect Manager <br /> ?age 11 <br />