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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 1900 Sates Avenue,Suite L Concord,CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Iwo Analytical 819 St.ker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> 0 DS Services Client Project ID Unocal#5098,5606 Pacific Ave Stockton Sampled Sep 14, 1994 <br /> 401 Stanwell Dr , Ste 400 Matrix Descnpt Water Received Sep 15, 1994 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Oct 3, 1994 <br /> Attention Avo Avedessian First Sample# 409-1286 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample Sample Chromatogram DL Muft Date Instrument Surrogate <br /> Number Description Pattern Factor Analyzed ID Recovery, % <br /> (QC Limits <br /> 70-130%) <br /> 409-1286 MW 10 Gasoline 10 9/27/94 HP-5 122 <br /> 409-1287 MW 11 Gasoline 400 9/27/94 HP-5 105 <br /> 409-1288 MW 12 Gasoline 50 9/27/94 HP-5 94 <br /> 409-1289 MW 13 -- 10 9/27/94 HP-2 107 <br /> 409-1290 MW 14 Gasoline 10 9/27/94 HP-2 102 <br /> 409-1291 MW 15 -- 10 9/27/94 HP-2 102 <br /> SEQUOIA ANALYTICAL, #1271 <br /> 0ignature on File <br /> Alan B Kemp <br /> Project Manager <br /> 4091286 MPD <27> <br />