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i <br /> Sequoia 680 Chesapeake Drive Redwood City 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 /> 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 RyanLGeostrategies _ Client Prof ID Unocal 5886, 180137 85 Sampled 06/17/98 <br /> ` 6747 Sierra Court Suite J Sample Descript MW-5S Received 06/17/98 ' <br /> Dublin, CA 94568 Matrix LIQUID Extracted 06/24/98 <br /> Analysis Method EPA 8015 Mod Analyzed 06/26/98 <br /> Attention_Deanna Harding » Lab Number_ 9806C26-08 Reported 07j09j98 »_ <br /> WC Batch Number GC0624980HBPEXZ <br /> Instrument ID GCHP19A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) with Silica Gel Cleanup <br /> Analyte Detection Limit Sample Results <br /> u9/L u9/L <br /> OTEPH as Diesel 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recove <br /> n-Pentacosane (C25) 50 150 Try <br /> 0 <br /> 0 <br /> Walytes reported as N a were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> ranlcher <br /> ct Manager Page 21 <br /> 0 <br />