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t Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364-9600 FAX(415) 364 9233 <br /> w 404 N Wtget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> J�ADi <br /> %0 Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> EMCON Associates Client Project tD Arco 6100-95-4, Tracy Sampled N/A <br /> 1433 N Market Blvd Sample Matrix Sod Received Jul 7, 1995 <br /> Sacramento, CA 95834 Analysis Method EPA 5030/8015/8020 Reported Jul 12, 1995 <br /> Attention Claudio Avila First Sample# 507-0193 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with STEX DISTINCTION <br /> Reporting Sample <br /> Analyte Limit I D. <br /> mg/kg 507-0193 <br /> S-0706-SP1-4 <br /> composite <br /> Purgeable <br /> Hydrocarbons 10 15 <br /> Benzene 00050 N D <br /> Toluene 00050 0 016 <br /> Ethyl Benzene 00050 0 011 <br />. Total Xylenes 00050 0 054 <br /> Chromatogram Pattern Gasoline <br /> C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 <br /> Date Analyzed 7/10/95 <br /> Instrument Identification GCHP-1 <br /> Surrogate Recovery, % 92 <br /> (OC Limits = 70-130%) <br /> Purgeabie 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 /> Linda C Schneider <br /> Protect Manager <br /> 5070193 EMC <1> <br />