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.Y' Sequoia w 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364-9233 <br /> 404 N W19et Lane Walnut Creek CA 94.598 (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 /> Envlros Client Prol ID Shell 4315 Waterloo, Stockton Sampied 02/22/96 <br /> 270 Perkins Ave Sample Descript SBA 0-16 Received 02/23/96 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 03/01/96 <br /> Analysis Method 8015Mod/8020 Analyzed 03/01/96 <br /> Attention Joe Neely _Lab Number 9602H94-02 Reported 03j22196 <br />:)C Batch Number GCO22996BTEXEXA <br /> nstrument 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 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 70 130 122 <br />• <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Gregory <br /> ct Manager Page 4 <br />