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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (4t5) 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 Stnker Avenue Suite 8 Sacramento,CA 95834 (916) 921 %00 FAX(916)921 0100 <br /> VI0 <br /> Touchstone Developments Client Prol ID Chevron 9-8264/8264-1 Sampled 11/07/95 <br /> 6280 Stoneridge Mall lid B211 Sample Descnpt T-5 Received 11/08/95 <br /> _ Pleasanton, CA 94588 Matrix SOLID Extracted 11/10/95 <br /> Analysis Method 8015Mod/8020 Analyzed 11/10/95 <br /> Attention Ann Marie Dockstader Lab Number 9511587-11 _ Reported 11 f 16j95 <br /> CC Batch Number GC1 1 1095BTEXEXA <br /> Instrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/K9 <br /> TPPH as Gas 10 57 <br /> Benzene 0.0050 024 <br /> Toluene 0.0050 0 021 <br /> Ethyl Benzene 00050 019 <br /> Xylenes (Total) 00050 037 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 106 <br />• I <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQU A ANALYTICAL - ELAP #1210 <br /> t <br /> Mark Cargasacchl <br /> Project Manager Page is <br />