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(D Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364-9600 FAX(415) 364 9233 <br /> 404 N lgct Lane Walnut Creek, CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> w1jr Analytical <br /> 619 Striker Avenue Suite$ Sacramento CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> Touchstone Developments Client Pro} I D Chevron 9-8264/8264-1 Sampled 11/07/95 <br /> 6280 Stoneridge Mall Rd B211 Sample Descnpt P-4 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 9511587-04 Reported 11 j16j95 <br /> �_ - Jab-Number- _ - - - -- - - _ <br /> OC Batch Number GC111095BTEXEXA <br /> Instrument ID GCHP18 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 10 1 3 <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 0.0050 00070 <br /> Xylenes (Total) 0.0050 0 015 <br /> Chromatogram Pattern <br /> Gas& Unidentified HC +<C9 <br /> Surrogates Control Limits % % Recovery <br /> Tnfluorotoluene 70 130 98 <br /> 0 <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQ IA ANALYTICAL - ELAP #1210 <br /> 4 <br /> Mark Cargasacchl <br /> PP ect Manager Page 7 <br />