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Sequoia 680 Chesapeake Dnve Rtdwood City CA 94063 (41.5) 364 9600 FAX(415) 364 9233 <br /> Analytical <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(5 t0) 988 9673 <br /> 3 E9 Sinker Avenuc Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Brown & Caldwell Client Project 1D Arco 434-95-5 Lodi Sampled Aug 22 1995 <br /> 9616 Micron Ave , Suite 600 Sample Matrix Air Received Aug 22, 1995 <br /> Sacramento, CA 95827 Analysis Method EPA 5030/8015/8020 Reported <br /> Attention Mindy Patterson First Sample # 508-1039 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Llmd I D. I D. <br /> ppmv 508-1039 508-1040 <br /> INF EFF <br /> Hurgeable <br /> Hydrocarbons 14 54 24 <br /> Benzene 0 016 N D N D <br /> Toluene ^ 013 N D 00,49 <br /> Ethyl Benzene 0 012 017 N D <br /> Total Xylenes 0 012 35 0 062 <br /> Chromatogram Pattern Gasoline Gasoline <br /> C&C12 C6-C12 <br /> Quality Control Data <br /> Report Umlt Multiplicatlon Factor 50 10 <br /> Date Analyzed 8/24/95 8/24/95 <br /> Instrument Identification GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 92 92 <br /> (QC Umlts = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> Janet H an <br /> Project Manager <br /> 5081039 6RS <1> <br />