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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 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> WPOS Services Client Project ID Unocal#6981,4707 Pacific Ave Stockton Sampled Oct 26, 1994 <br /> 2401 Stanwell Dr , Ste 400 Matrix Descript Water Received Oct 27, 1994 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Nov 10, 1994 <br /> Attention Avo Avedissian First Sample# 410-1843 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Chromatogram DL Mult Date Instrument Surrogate <br /> Number Description Pattern Factor Analyzed ID Recovery, % <br /> (QC Limits <br /> 70-130%) <br /> 410-1843 MW-11 -- 10 11/3/94 HP-5 94 <br /> 410-1844 MW-12 -- 1 0 11/8/94 HP 4 95 <br /> 410-1845 MW-13 -- 10 11/8/94 HP-4 93 <br /> SEQUOIA ANALYTICAL, #1271 <br />*signature <br /> on File <br /> Alan B Kemp <br /> Project Manager <br /> 4101833 MPD <4> <br />