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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> k1!D— 900 late,Avenue,Suite I Concord CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> I Analytical <br /> nalytical 819 Stoker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Mill Creek Associates Client Prof ID Roek Bros Property Sampled 09/13/94 », <br /> P 0 Box 130 Sample Descript RB-MWB-15 5' Received 09/16/94 ; <br /> Milford CA 96121 Matrix SOLID Extracted 09/21/94 " <br /> Analysis Method 6015Mod/6020 Analyzed 09/21/94 ; <br /> Attention Russell Juncai Lab Number 9409A73-01» _ N i Reported 09»(30/94 <br /> Instrument ID GCHP-01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> I, <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> I <br /> TPPH as Gas 1 0 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 107 <br /> f <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Vickie Tague Clark <br /> Project Manager Page 2 <br />