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Sequoia 680 Chesapeake Drive Redwood Ciry,CA 94063 (650) 364-9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988%73 <br /> Analytical <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> akina Environmental Client Project ID Shell,7910 Lower Sacramento Rd,Stockton Sampled Dec 16, 1997 <br /> P O Box 259 Sample Matrix Sod Relogged Dec 22, 1997 <br /> Sonoma, CA 95476-0259 Analysis Method EPA 5030/8020, DHS Luft Reported Jan 13, 1998 <br /> Attention Thomas Magney First Sample # 7120782A <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample <br /> Analyte Limit I D <br /> mg/kg 7120782A <br /> B-2-2s 0 <br /> Purgeable <br /> Hydrocarbons 10 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> stal Xylenes 00050 00070 <br /> Chromatogram Pattern -- <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication Factor 1 0 <br /> Date Analyzed 12/23/97 <br /> Instrument Identification GCHP-1 <br /> Surrogate Recovery, % 85 <br /> (QC Limits = 60-140%) <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 /> SEQUOI ANALYTICAL, E P #11624 <br /> 7ndaSchneider <br /> Manager/Sacramento Laboratory <br /> 7120768A CES <2> <br />