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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive Redwood City, CA 94063 <br /> (415) 364-9600 • FAX (415) 364-9233 <br /> } <br /> RESNA Chert Project ID 150047 01, Ekholm Property Sampled Jan 4, 1994 <br /> 1710 Main Street Sample Matrix Soil Received Jan 5, 1994 <br /> Escalon, CA 95320 Analysis Method EPA 5030/8020 Reported Jan 25, 1994 <br /> Attention John Lane First Sample# 4A40301 <br /> BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Ljmd I.D. ID ID ID ID <br /> mg/kg 4A40301 4A40302 4A40303 4A40304 4A40305 <br /> EXF1-13' EXNW-8' ECSW-11' EXWW-14 5' EXEW-8 5' <br /> Benzene 00050 N D N D N D N D N D <br /> Toluene 00050 N D N D N D N D N D <br /> Ethyl Benzene 00050 N D N D N D N D N D <br /> Total Xylenes 00050 N D N D N D N D N D <br /> Guality Control Data <br /> Report Limit Multiplication Factor 10 10 10 10 10 <br /> Date Analyzed 1/13/94 1/13/94 1/13/94 1/13/94 1/13/94 <br /> Instrument Identification GCHP-S GCHP-6 GCHP-18 GCHP-18 GCHP-18 <br /> Surrogate Recovery, % 92 112 96 102 99 <br /> (QC Limits = 70-130%) <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> 0 SEQUOIA ANALYTICAL <br /> W <br /> rq, <br /> Vickie Tague <br /> Project Manager 4A40301 WAT 42> <br />