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Sequoia 690 Chesapeake Drive Redwood Cry CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Gettler RyanGeostrategles _ Client Prod- ID - --Unocal SS#5886/2701 W-March- _-- Sampled 09%01%98 <br /> 6747 Sierra Court Suite J Sample Descript MW-2 Received 09/02/98 <br /> Dublin, CA 94568 Matrix LIQUID Extracted 09/08/98 <br /> Analysis Method EPA 8015 Mod Analyzed 09/10/98 _ <br /> Attention Deanna Harding Lab Number 9809049-03 Reported 10101 j98 <br /> CC Batch Number GC0908980HBPEXB -- - -- _ - <br /> Instrument ID GCHP4B <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <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 77 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> 1"�Granicher <br /> Project Manager Page 6 <br />