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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(4t5) 364 9233 <br /> t900 Bates Avenue 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 Prol 1D 8632-2, Chevron 9-8632 Sampled 08/10/94 <br /> P O Box 2554 Sample Descript WX-2 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 9408596-01 Reported OBJ12194 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 10 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 90 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> X111 ( UJCJi- <br /> Tague Clark <br /> Pro ect Manager Page 3 <br />