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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364-96W FAX(415) 364 9233 <br /> 404 N Wigct [ane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Strike,Avenue Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> Touchstone Developments Client Proj ID Chevron 9-8264/8264-1 Sampled 11/07/95 <br /> 8280 Stoneridge Mall Rd 8211 Sample Descript UOSP-1 (A-D) Comp Received 11/08/95 <br /> Pleasanton, CA 94588 Matrix SOLID <br /> Analysis Method Title 22 Analyzed 11/09/95 <br /> Attention Ann Marie Dockstader Lab Number 9511553-05 _ Reported_11 J13J95 <br /> Inorganic Persistent and Bloaccumulative Toxic Substances • TTLC <br /> Analyte Max Limit Detection Limit Sample Results <br /> mg/Kg mg/Kg mg/Kg <br /> Antimony, Sb 500 50 N D <br /> Arsenic, As 500 50 N D <br /> Barium, Ba 10000 50 94 <br /> Beryllium, Be 75 050 N D <br /> Cadmium, Cd 100 050 N D <br /> Chromium, Cr 2500 050 15 <br /> Chromium, Cr (VI) 500 0 050 - - <br /> Cobalt, Co 8000 2.5 54 <br /> Copper, Cu 2500 060 13 <br /> Lead Pb 1000 50 ND <br /> Mercury, Hg 20 0 020 0 028 <br /> Molybdenum, Mo 3500 25 N D <br /> ickel, Ni 2000 25 17 <br /> fenium, Se 100 50 N D <br /> Over, Ag 500 050 N D <br /> Thallium, TI 700 50 N D <br /> Vanadium, V 2400 25 28 <br /> Zinc, Zn 5000 .. 050 34 <br /> Asbestos,fibers/g 10000 -- <br /> Fluoride salts 18000 10 - - <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUO A ANALYTICAL - ELAP #1210 <br /> Mark Cargasacchi <br /> Project Manager Page 14 <br />