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•` Sequoia 6S0 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (S10)988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br />^Gettler Ryan[Geastrategles Client Prol ID Unocal 0123/1034 Central Ave _�-µ Sampled 03/24/98 <br /> 6747 Sierra Court Suite J Sample Descrlpt U-4 Received E31/9825/98 <br /> Dublin, CA 94568 Matrix LIQUID Extracted 27/98 <br /> Analysis Method EPA 8015 Mod Analyzed <br /> Attention Deanna Harding Lab Number 9803H06-05 Reported 04109198 <br /> QC Batch Number GC0327980HBPEXB <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 so 340 <br /> Chromatogram Pattern <br /> Unidentified HC C9-C24 <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 78 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> 0 - <br /> Olect Manager Page 18 <br />