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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 1900 Bates Avenge Suite L Concord CA 94520 (510) 686 9600 FAX(510) 686 9689 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Touchstone Development Client Pro] ID 8632-2, Chevron 9-8632 Sampled 08/10/94 <br /> P O Box 2554 Sample Descript WX-7 Received 08/10/94 <br /> Santa Rosa, CA 95405 Matrix SOLID Extracted 08/11/94 <br /> Analysis Method 8015Mod/8020 Analyzed 08/11/94 <br /> Attention Jeff Monroe Lab Number 9408596-03 Reported 08112194 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 1 0 21 <br /> Benzene 00050 00060 <br /> Toluene 00050 N D <br /> Ethyl Benzene _ 00050 0 036 <br /> Xylenes (Total) 00050 0 014 <br /> Chromatogram Pattern <br /> Weathered Gas C9-C 12 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 84 <br /> 0 <br /> Analytes reported as€V D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> ie Tague Clark <br /> ro]ect Manager <br /> Page 7 <br />