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(D Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(41$) 364 9233 <br /> 1900 Bates Avenue Suite L Concord CA 94520 (510) 686 9600 FAX(510) 686 9689 <br /> X117 Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Touchstone Development Client Proj ID 8632-2, Chevron 9-8632 Sampled 08/10/94 <br /> P O Box 2554 Sample Descript WX-4 Received 08/10/94 <br /> Santa Rosa, CA 95405 Matrix SOLID Extracted 08/16/94 <br /> Analysis Method 8015Mod/8020 Analyzed 08/16/94 <br /> Attention Jeff Monroe Lab Number 9408829-03 Reported 08129194 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 500 1700 <br /> Benzene 2 5 32 <br /> Toluene 25 45 <br /> Ethyl Benzene 2 5 40 <br /> Xylenes (Total) 2 5 130 <br /> Chromatogram Pattern Gas <br /> Surrogates _ Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 101 <br /> i <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> el <br /> Tague Clark <br /> Project Manager page 7 <br /> r� <br />