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1 • <br /> IT) <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical Bi9Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916) 921 0]00 <br /> = Gettler Rya6 Geosrrategles Client Prol ID= Chevron 9-6171, Stockton Sampled 02/24/97 - <br /> 6747 Sierra Court Suite G Sample Descript MW-6 Received 02/25/97 <br /> , Dublin, CA 94568 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 02/28/97 <br /> Attention Deanna Harding Lab Number 9702034-04 Reported 03j05197 <br /> 'OC Batch Number GCO22897BTEX06A - -- - - -- -- - -- - - -- --- --- <br /> Instrument ID GCHP6 <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 .. ... 50100 <br /> Methyl t-Butyl Ether 25 •• - --• N D <br /> Benzene 050059 <br /> Toluene - - - - •• 050 -- - - -• N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Unidentified HC <br /> Surrogates Control Limits% % Recovery <br /> Trrfluorotoluene 70 130 Try <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> /0�— <br /> M regory <br /> PeW Manager Page 4 <br />