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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> �..�i 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 /> i <br /> Envlros Client Proj ID Shell 141 N EI Dorado, Stock Sampled 04/02/96 <br /> 270 Perkins Ave Sample Descript B-5-20 Received 04/04/96 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 04/09/96 <br /> Analysis Method 8015Mod/8020 Analyzed 04/12/96 <br /> Attention Joe Neely Lab Number 9604470-15 Reported 04119196 <br /> C5C Batch Number GC041296BTEXEXA <br /> Instrument ID GCHP18 <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 100 970 <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern - C6-C12 <br /> Surrogates Control Limits% % Recovery <br /> Tnfluorotoluene 70 130 83 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Gregory <br /> Project Manager Page to <br />