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Sequoia 680 Chcsapcakr Drtvc Rcdwo-d City CA 91061 {415) 3e1 96no FAX(4 15) 3614 9233 <br /> 404 N Wig,t 1 ine Walnut Crccl CA 94503 (510) 999 9600 FAX(510) 998 9673 <br /> Analytical 819StnkcrAvcnuc Swc8 Sacruncnlo CA 95834 (9 16) 911 960() fAX(916) 921 WOO <br /> Environmental Resolutions Client Prol ID Unocal 5886 205503 Sampled 04/15/97 <br /> 74 Digital Drive , Suite 6 Sample Descript S 6 0 66 Received 04/18/97 <br /> Novato CA 94949 Matrix SOLID Extracted 05/01/97 <br /> Analysis Method 8015Mod/8020 Analyzed 05/01/97 <br /> Attention Keith Romstad Lab Number 9704614 03 Reported 05/01/97 <br /> OC Batch Number GCO50197BTEXEXA <br /> Instrument 1D GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> Mg/Kg K m K <br /> 9/ 9 8/ 9 <br /> TPPH as Gas 10 N D <br /> Methyl t Butyl Ether 0 025 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 93 <br /> 4 Bromofluorobenzene 60 140 60 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Z <br /> Foliett <br /> Oin <br /> lect Manager Page _ <br />