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Sequoia 680 Chesapeake Drive Redwood Ctty CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N Wiget Fane Walnut Creek CA 94598 t510) 988 9600 FAX (510)988 9673 <br /> Analytical S19!)trrkerAvenue butte 8 Sacramento LA 95834 )161 921 9600 lAX (916 921 0100 <br /> i <br /> Brown & Caldwell Client Protect ID Arco 2133, Stockton Sampled Jul 11 1995 <br /> 9616 Micron Ave Suite 600 Sample Matrix Water Received Jul 12, 1995 <br /> Sacramento CA 95827 Analysis Method EPA 5030/8015/8020 Reported Jul 25, 1995 <br /> Attention Mindy Patterson First Sample# 507-0342 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample <br /> Analyte Limit I D <br /> pg/L 507-0342 <br /> Yank <br /> Hurgeabie <br /> Hydrocarbons 50 630 <br /> Benzene 050 27 <br /> Toluene 0 50 2 9 <br /> Ethyl Benzene 050 22 <br /> • <br /> Total Xylenes 0 50 53 <br /> Chromatogram Pattern Gasoline <br /> C&C12 <br /> Quality Control Data <br /> Report Llmd Multiplication Factor 1 0 <br /> Date Analyzed 7/14/95 <br /> Instrument Identification GCHP-2 <br /> Surrogate Recovery, % 108 <br /> (OC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gaschno standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP#1624 <br /> Janet H clan <br /> Protect Manager <br /> 5070342 SRS <1> <br />