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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(5t0)686 9689 <br /> �I Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> OMPDS Services Client Project ID Unocal#6015,601 East Kettleman Lane, Lodi Sampled Mar 30-31, 1994 <br /> 2401 Stanwell Dr, Ste 400 Sample Matrix Water Received Mar 31, 1994 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Apr 14, 1994 <br /> Attention Avo Avedessian First Sample # 403-1463 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample <br /> Analyte Limit ID 10 ID ID <br /> pg/L 403-1463 403-1464 403-1465 Method <br /> MW 7 MW 8 MW 9 Blank <br /> Purgeable <br /> Hydrocarbons 50 N D N D N D <br /> Benzene 0 5 N D N D N D <br /> Toluene 0 5 N D N D N D <br /> Ethyl Benzene 0 5 N D N D N D <br /> 0 Total Xylenes 0 5 N D N D N D <br /> Chromatogram Pattern - <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 <br /> Date Analyzed 4/6/94 4/6/94 4/6/94 4/6/94 <br /> Instrument Identification HP-4 HP-4 HP-2 HP-2 <br /> Surrogate Recovery, % 100 110 102 110 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL, #1271 <br /> AKe p <br /> Project M eager <br /> 4031457 MPD <2> <br />