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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (51 p)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> EMCON Client Project ID ARCO 548, Stockton, CA Sampled Feb 10, 1998 <br /> 1433 N Market Blvd Sample Matrix Soil Received Feb 11, 1998 <br /> Sacramento, CA 95834 Analysis Method EPA 5030/8020, DHS Luft Reported <br /> Attention Mark Capps First Sample # 802-0242 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Sample <br /> Analyte Units Results <br /> mg/kg 802-0242 <br /> T-5 (7) <br /> Purgeable N D <br /> Hydrocarbons Reporting Limit 1 0 <br /> Benzene N D <br /> Reporting Limit 00050 <br /> Toluene N D <br /> Reporting Limit 00050 <br /> Ethyl Benzene N D <br /> 10 Reporting Limit 00050 <br /> Total Xylenes N D <br /> Reporting Limit 00050 <br /> Chromatogram <br /> Pattern <br /> Quality Control Data <br /> Date Analyzed 02/11/98 <br /> Instrument Identification GCHP-2 <br /> Surrogate Recovery, % 95 <br /> (QC Limits = 60-140%) <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 /> UOIA ANALYTICAL, ELAP 1624 <br /> Ronald W Sobel <br /> Project Manager/Sacramento Laboratory <br /> 8020242 EMC <1> <br />