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680 Chesapeake Dnvc Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> Sequoia <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 %73 <br /> I� Analytical 819 Stnker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services Client Proj ID Shell Stockton/971117-M1 Sampled 11/17/97 „ <br /> 1680 Rogers Avenue Sample Descript MW-8 Received 11/26/97 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis-Method T8015Mod/8020 Analyzed -12,/01/97-11 <br /> ,' Attention Fran Thie Lab Number 9711F35-08 Reported 12111197„ <br /> OC Batch Number GC120197BTEX02A <br /> Instrument 1D GCHP02 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/L mg/L <br /> TPPH as Gas 0 050 0 063 <br /> Benzene 000050 N D <br /> Toluene 000050 N D <br /> Ethyl Benzene 000050 N D <br /> Xylenes (Total) 000050 N D <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotolvene 70 130 90 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOI AN [CAL - ELAP #1210 <br /> Pegg ner <br /> Project Manager Page 24 <br />