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Y` SEQUOIA ANALYTICAL <br /> * 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX(415) 364-9233 <br /> Aegis Environmental Consultants Client ProjectID Shell,Tracy Sampled Feb 15, A1994 <br /> 1050 Melody Lane, Suite 160 Sample Matrix Water Received Feb 16, 1994 <br /> Roseville, CA 95678 Analysis Method EPA 5030/8015 Mod /8020 Reported Mar 2, 1994 <br /> Attention David Poulsen First Sample# 4BA1701 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D. I D I D I D I.D I D <br /> Mg/L 4BA1701 4BAi702 4BA1703 4BA1704 4BA1705 4BA1706 <br /> MW-1A MW-2A MW-3A Dup E B TB <br /> Purgeable <br /> Hydrocarbons 50 N D N D N D N D N D N D <br /> Benzene 050 N D N D N D N D N D N D <br /> Toluene 050 N D N D N D N D N D N D <br /> Ethyl Benzene 050 N D N D N D N D N D N D <br /> Total Xylenes 050 N D N D N D N D N D N D <br /> Chromatogram Pattern - - -- <br /> Duality Control Data <br /> Report Limit Multiplication Factor 1 0 10 10 1 0 1 0 10 <br /> Date Analyzed 2/18/94 2/18/94 2/18/94 2/18/94 2/18/94 2/18/94 <br /> Instrument Identification GCHP-6 GCHP-6 GCHP-6 GCHP-6 GCHP-6 GCHP-6 <br /> Surrogate Recovery, % 111 101 109 111 109 126 <br /> (OC 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 <br /> ZagueU- <br /> Vickle <br /> Project Manager 4BA1701 AEG c I> <br />