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o <br /> 680 Chesapeake Drive Redwood Cary CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek,CA 94598 (9Z5)988-9600 FAX(925)988-9673 <br /> a- Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)92I-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)79Z-034Z <br /> WGettler RyanlGeostrategies� Client Prol ID- -UNOCAL 0123, 280047 85 Sampled 06/22/98 <br /> 6747 Sierra Court Suite J Sample Descrlpt U-0 _ Received 06/22/98 <br /> Dublin, CA 94568 Matrix LIQUID Extracted 06/25/98 <br /> Analysis Method EPA 8015 Mod Analyzed 06/29/98 <br /> Attention Deanna Harding _ Lab Number 9806E65-047j98— <br /> CC Batch Number GC0625980HBPEXZ �- <br /> Instrument ID GCHP19A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) with Silica Gel Cleanup <br /> Analyte Detection Limit Sample Results <br /> ug/L. ug/L <br /> TEPH as Diesel 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 75 <br /> Is <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Granicher <br /> Project Manager Page tt <br />