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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 (510) 988 9600 FAX(510)988%73 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> -- Stockton/971202-1-1 Sam led 12/02/97 <br /> Blaine Tech Services Client Prol ID Shell p <br /> 1680 Rogers Avenue Sample Descript 2468 CC Warmon Received 12/03/97 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method^8015Mod/8020 Analyzed -12/=15/97., <br /> Attention Fran Thie _ Lab Number 9712358-01 Reported 12119197 <br /> QC Batch Number GC121597BTEX2IA <br /> Instrument ID GCHP21 <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 25 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 74 <br /> Analytes reported as D were not present above the stated limit of detection <br /> SEQ <br /> Analytes <br /> N LYTICAL - ELAP #1210 <br /> s <br /> Peggy Penner <br /> Project Manager Page 3 <br />