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Sequoia 680 Chesapeake Drive Rcdwood Crry CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wigec cane Walnut Creek CA 94598 (510) 988 9600 FAX(510) 988 9673 <br /> „ Analytical 819 Scnkcr Avenue Smte 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Pacific Environmental Group, Inc Client Project ID Arco 2133, Stockton Sampled Mar 19, 7996 <br /> 11315 Sunrise Gold Circle, #M Sample Matrix Water Received Mar 21, 1996 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8015/8020 Reported Apr 3, 1996 <br /> Attention Greg Barclay First Sample # 603-1025 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample <br /> Analyte Limit 11.13 <br /> pg/L 603-1025 <br /> E-12 <br /> Purgeable <br /> Hydrocarbons 50 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> . Total Xylenes 050 N D <br /> Chromatogram Pattern _- <br /> Quairty Control Data <br /> Report Limit Multiplication Factor 1 0 <br /> Date Analyzed 03/28/96 <br /> Instrument Identification GCHP-2 <br /> Surrogate Recovery, % BO <br /> (QC Limits = 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 /> I Linda C Schnei er <br /> Project Manager/Sacramento Laboratory <br /> 6031010 P ES <4> <br />