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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> ID 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 /> Blaine Tech Services Client Proi ID Shell Stockton/97120211 Sampled 12/02/97 <br /> 1680 Rogers Avenue Sample Descript EB Received 12/03/97 <br /> San Jose, CA 95112 Matrix LIQUID ' <br /> Analysis Method 8015Mod/8020 Analyzed 12/12/97 <br /> Attention-Fran Thie Lab-Number=9712360=14 _ _ Reported=12f 19J97=.- <br /> TQC Batch Number GC121297BTEX2IA - -- - <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 0 50 N D <br /> Toluene 0 50 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 80 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQU AN ICAI - ELAP #1210 <br /> Peggy Penner <br /> Project Manager Page 9 <br />