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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 (925)988-9600 FAX(925)988-%73 <br /> tiller Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)911-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> i L_--•"^ �.._=,i,W�:....:_ _-= - ....G..�R�u.-_-ivy u"i:.......�.�.�....:�sis.i— •"• ..., ....:.....«....11+x___.si.,.G�».. .,^.sem- -_�-�•�Y "- uuw�=_.,... <br /> Gettler Ryan Geostrategies Client Prol ID Chevron 9-6171, Stockton Sampled 08/17/98 <br /> 6747 Sierra Court Suite J Sample Descnpt MW-3 Received 08/18/98 W <br />? Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/31/98 = <br /> Attention Deanna Harding_ Lab Number 9808624-03- - _- —_ Reported 09J04j98 - N <br /> GC Batch Number GCA83198802009A - -~- ---�-------�- -_ --- -� --- ~��- µ Y — <br /> Instrument ID HP9 <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 .. .. 120 <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 0 50 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Unidentified HC .- -• ••• -- - >C8 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 109 <br /> J <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01271 <br /> qKe reoolect Manager Page 3 <br />