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u Sequoia i Chesapeake Drive Redwood City CA 94063 5) 364 9600 FAX(415)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue Suite a Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> OEIVICON Associates Client Project ID Arco 2130-95-5 Stockton Sampled ,Jul 17, 1995 <br /> 1433 N Market Blvd Sample Matrix Air Received Jul 17, 1995 <br /> Sacramento, CA 95834 Analysis Method EPA 5030/8015/8020 Reported Jul 18, 1995 <br /> Attention Jay Johnson First Sample # 507-0685 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I D. I D. <br /> ppmv 507-0685 507-0686 <br /> "SYS-INP "SYS-EFF' <br /> Furgeable <br /> Hydrocarbons 14 1,800 340 <br /> Benzene 0 016 27 34 <br /> Toluene 0 013 130 32 <br /> Ethyl Benzene 0 012 21 067 <br /> Total Xylenes 0 012 100 32 <br /> Chromatogram Pattern Gasoline Gasoline <br /> C6-C12 C6-C12 <br /> Duality Control Data <br /> Report Limit Multiplication Factor 100 so <br /> Date Analyzed 7/12/95 7/12/95 <br /> Instrument Identification GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 89 <br /> (CC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against afresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> Linda C Schneider <br /> Project Manager <br /> 5070685 EMC <1> <br />