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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(510)988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95894 (916) 921 %00 FAX(916)921 0100 <br /> qW <br /> *b6a Environmental Client project ID Shell,7910 Lower Sacram TZROS l VUD Dec 16, 1997 <br /> P O Box 259 Sample Matrix Soil Relogge Dec 22, 1997 <br /> Sonoma, CA 95476-0259 Analysis Method EPA 5030/8020, DHS Lift AN 2 2 19%orte Jan 13, 1998 <br /> Attention Thomas Manney First Sample# 7120768A <br /> BY: <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D I D <br /> mg/kg 7120768A 7120771A 7120775A 7120776A 7120778A 7120781A <br /> B-1-120 B-1-17 0 B-1-31 0 B-1-35 0 B 2-12 0 B-2 24 0 <br /> urgea Te- <br /> Hydrocarbons 10 N D 2,100 45 N D N D N D <br /> Benzene 00050 N D 057 N D N D N D N D <br /> Toluene 00050 N D 13 N D N D N D N D <br /> Ethyl Benzene 00050 N D 41 0 067 00072 N D N D <br /> Dotal Xylenes 00050 N D 260 0 43 0 056 N D N D <br /> Chromatogram Pattern -- C5-C12 C6-C12 -- -- - <br /> Quality Control Data <br /> Reporting Limit <br /> Multiplication Factor 1 0 100 10 1 0 1 0 1 0 <br /> Date Analyzed 12/23/97 12/23/97 12/23/97 12/26/97 12/23/97 12/23/97 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-2 GCHP-1 GCHP-2 GCHP-1 <br /> Surrogate Recovery, % 85 85 84 83 84 89 <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 /> QUOIA ANALYTICAL, FLAP #1624 <br /> L da C Schnei er <br /> rolect Manager/Sacramento Laboratory <br /> 7120768A CES <1> <br /> c _ <br />