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(D Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 1900 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 /> Blaine Technical Services Client Proj ID 940816-Zi, Chevron, S221-5 Sampled 08/16/94 <br /> 985 Timothy Drive Sample Descript MW-1 Received 08/18/94 <br /> San Jose, CA 95133 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/22/94 <br /> Attention Jim Keller Lab Number 9408B91-01 Reported 0BJ24/94 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Tritluorotoluene 70 130 78 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> ne Chin <br /> Project Manager Page t <br />