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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 1900 Bates Avenue Suite I <br /> tl>11� Analytical Sacramento <br /> CA 93520 516) 921 9600 FAX (510) 686 9689 <br /> 319 Sinker Avenue iwte 3 Sacramento CA 95834 ,9161 923 9600 FAX(916) 921 0100 <br /> J <br /> Brown & Caldwell Client Project ID ARCO, 2133 Stockton CA Sampled OCt 14, 1994 <br /> 9616 Micron Ave , Suite 600 Sample Matrix Water Received Oct 14, 1994 <br /> Sacramento CA 95827 Analysis Method EPA 5030/8015/8020 Reported Oct 27, 1994 <br /> Attention Mindy Wright First Sample # 410-0622 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample <br /> Analyte Limit I D <br /> ,rg/L 410-0622 <br /> Tank <br /> Purgeable <br /> Hydrocarbons 50 400 <br /> Benzene 050 27 <br /> Toluene 050 5 8 <br /> Ethyl Benzene 050 63 <br /> Total Xylenes 050 35 <br /> Chromatogram Pattern Gasoline <br /> C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 <br /> Date Analyzed 10/25/94 <br /> Instrument Identification GCHP-2 <br /> Surrogate Recovery, % 94 <br /> (OC Limits = 70-130°/x) <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, FLAP #1624 <br /> C�- -w q6V--- <br /> Jennie Higgins <br /> Project Manager <br /> 4100622 BRS ¢1> <br />