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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br />' Enviros ClientProl ID Shell 2575 Country Club, Stck Sampled 01/02/67 <br /> 270 Perkins Ave Sample Descript MW-8-C Received 01/03/97 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 01/06/97 <br /> Analysis Method 8015Mod/8020 Analyzed 01/06/97 <br /> Attention Joe Neely_ Lab Number 9701119-05 Reported 01 JO9J97 <br /> OC Batch Number GC010697BTEXEXA <br /> Instrument ID GCHP22 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 1 0 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 70 130 103 <br />• <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Gregory <br /> lect Manager Page 5 <br />