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Sequoia680 Chesapeake Drive Redwood City, CA 94063 (650) 364 9600 FAX(650)3&4 923 w <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921-0 100 <br /> Cambria Environmental Client Project ID Shell,7910 Lower Sacramento Rd,Stockton Sampled � Dec 16, 190 <br /> P 0 Box 259 Sample Matrix Water Received Dec 17, 1997 <br /> Sonoma, CA 95476-0259 Analysis Method EPA 5030/8020, DHS Luft Reported Dec 30, 1997 <br /> Attention Thomas Magney First Sample # 712-0783 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample <br /> Analyte Limit I D <br /> mg/L 712-0783 <br /> B-1-AQ <br /> Vurgeable <br /> Hydrocarbons 0 050 110 <br /> Benzene 000050 026 <br /> Toluene 000050 3 2 <br /> Ethyl Benzene 000050 4 8 <br /> Total Xylenes 000050 35 <br /> Chromatogram Pattern C6-C12 <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication factor 200 <br /> Date Analyzed 12/29/97 <br /> Instrument Identification GCHP-2 <br /> Surrogate Recovery, % 99 <br /> (0C 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 /> i <br /> SEQUOIA ANALYTICAL, FLAP 41624 <br /> Linda C Schneider <br /> Project Manager/Sacramento Laboratory <br /> 7120783 CES <t> <br />