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i <br /> 68o Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> Sequoia 404 N.W;get Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> j 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921-0100 <br /> Analytical <br /> _....._........_..__.._....__._ -�...._.....� _—._..._...___ ___..._.._...._....._......_ _...._....._.._ ..__...._.__._....... <br /> ----.._._.._...... ........._................ ............... ::::::::::::::: ::::_:::::_:::::::::............_..... ........._............... .............._.......... <br /> ._..__ _---_ __. ......... ........................ ............. . ....._ -........._... _.......___....._........_............_..._.. _...... ............ <br /> _..........................._......._.... _..._.................................. --- _......._ .............._. <br /> _..........— —__..._....-- ......._. .._.........:::.::::::::::::::: _......--....._......._......_............._.........._....... _........._.. ...................._..................... _... <br /> Enviros Client Proj. ID: Shell Stockton Sampled: 10/28/97 <br /> 270 Perkins Ave. Sample Descript:' SB-1-31.5 Received: 10/28/97 <br /> j Sonoma, CA 95476 Matrix: SOLID Extracted: 11/03/97 <br /> M Analysis Method: 8015Mod/8020 Analyzed. 11/03/97 <br /> Fief K /06/97 <br /> ed: 11r€ <br /> Attention:Tom Ma ne Lab Number: 9710H60-02 _— _..—_._..__._.... . _— <br /> QC Batch Number: GC1 i 03976TEXEXA <br /> _ Instrument ID: GCHP22 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/K9 mg/Kg <br /> TPPH as Gas 1.0 N.D. <br /> { Benzene 0.0050 N.D. <br /> Toluene 0.0050 N.D. <br /> Ethyl Benzene 0.0050 N.D. <br /> Xylenes (Total) 0.0050 N.D. <br /> Chromatogram Pattern: <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 95 <br /> 4-Bromofluorobenzene 60 140 109 <br /> i <br /> r. <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> egory <br /> Project Manager Page: 4 <br /> t <br />