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Sequoia 684 Chcsrpr•ake Drive Red. ood City CA 9[06,3 (4 15) 304 9660 F X(415) 364 9233 <br /> 1 461 N W.,3et,I VIC Wilma C'rcck CA 94594 (5 10) 99? 9600 FAX(5 to)989 9673 <br /> Analytical 819 Striker Avenue Srtuc 8 5ticrrrnento CA 95834 (9t6) 9'1 9600 FAX(916)721 0100 <br /> 0 <br /> Environmental Resolutions Client Prol ID Unocal5886, 205503 Sampled 04/15/97 <br /> 74 Digital Drive Suite 6 Sample Descript S 6 0 64 Received 04/18/97 <br /> Novato CA 94949 Matrix SOLID Extracted 04/24/97 <br /> Analysis Method EPA 8015 Mod Analyzed 04/25/97 <br /> Attention Keith Romstad Lab Number 9704B14 01 Reported 05/01/97 <br /> CC Batch Number GC0421970HBPEXA <br /> Instrument ID GCHP4A <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> mg/Kg m9/K9 <br /> TEPH as Diesel 1 0 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> n-Pentacosane (C25) 50 150 57 <br /> AnaEytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> -,"�41 "1 — <br /> WjectncFollett <br /> Manager Page 2 <br />