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■ , Sequoia 4590 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(4 15) 364 7233 <br /> �•�/^i 404 N Wtgct Lane Walnut Crerk CA 94599 (510) 998 9600 FAX(510) 79q 9673 <br /> ""IltI,r Analytical 819 Striker Avenue Suite Saerittientn C1 95834 (916) 92t 9600 FAX(916) 921 01 V) <br /> 0 1 <br /> Environmental Resolutions Client Proj ID Unocal 5886 205503 Sampled 04/15/97 <br /> 74 Digital Drive Suite 6 Sample Descript S 5 5 B5 Received 04/18/97 <br /> Novato CA 94949 Matrix SOLID Extracted 04/23,`97 <br /> Analysis Method EPA 8015 Mod Analyzed 04/24/97 <br /> Attention Keith Romstad Lab Number 9704B1402 Reported 05/01,/97 <br /> OC Batch Number GC0423970HBPEXA <br /> Instrument ID GCHP4B <br /> Total Extractable Petroleum Hydrocarbons (TEPH) <br /> Analyte Detection Limit Sample Results <br /> m9/Kg mg/Kg <br /> TEPH as Diesel 1 0 1 0 <br /> Chromatogram Pattern <br /> Weathered Diesel C9-C24 <br /> Surrogates Control Limits % % Recovery <br /> n Pentacosane (C25) 50 150 55 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> 71 <br /> Ia <br /> in Follett <br /> 1ject Manager Page 4 <br />