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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-96W FAX(650)364 9233 <br /> q404 N Wiget Lanc Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> �III� Analytical 819 Sinker Avenue,Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Mar 2, 1998 <br /> Pacific Environmental Group Client Project ID 920 122 1A/Chevron 9-9840 Sampled Mar 3, 1998 <br /> 11315 Sunrise Gold Circle, Ste M Sample Matrix Soil ReceReported Mar 5, 1998 <br /> Rancho Cordova, CA 95742 Analysis Method EPA 5030/8020 Modified p <br /> Attention Tim Anenson First Sample# 803-0067 <br /> METHYL TERTIARY BUTYL ETHER (MTBE) <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D <br /> mg/kg 803-0067 803-0068 803-0069 803-0070 803-0074 <br /> PL-1 @ 4 PL-2 @ 3' PL-3 @ 4' PL-4 @ 3' WOSP <br /> Composite <br /> MTBE 0 050 N D 11 32 N D N D <br /> Quality Control Data <br /> eporting emit <br /> Multiplication Factor 1 0 20 500 1 0 10* <br /> Date Analyzed 03/03/98 03/03/98 03/03/98 03/03/98 03/03/98 <br /> Instrument Identification GCHP-1 GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Surrogate Recovery, % 94 103 102 93 98 <br /> (QC Limits = 60-140%) <br /> *Reporting limit raised due to matrix interference <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA NALYTICAL, FLAP #1624 <br /> nda C Schneider <br /> Project Manager/Sacramento Laboratory 8030061 FES <4> <br /> f <br />