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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9133 <br /> 1900 Bates Avenue Suite L Concord,CA 94520 (510) 686 9600 FAX (510) 696 9689 <br /> qIW Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 911 0100 <br /> 0 <br /> Touchstone Development Client Prol ID 8632-2, Chevron 9-8632 Sampled 08/17/94 <br /> P O Box 2554 Sample Descript WX-14 Received 08/18/94 <br /> Santa Rosa, CA 95405 Matrix SOLID Extracted 08/24/94 <br /> Analysis Method 8015Mod/8020 Analyzed 08/24/94 <br /> Attention Jeff Monroe Lab Number 94081387-03 Reported 09/01194 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 50 740 <br /> Benzene 025 N D <br /> Toluene 025 N D <br /> Ethyl Benzene 025 14 <br /> Xylenes (Total) 0 25 13 <br /> Chromatogram Pattern <br /> Weathered Gas C8-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 121 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Tague Clark <br /> ct Manager Page 7 <br />