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a) Sequoia <br />Analytical <br />680 Chesapeake Drive 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 />819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921-9600 FAX (916) 921-0100 <br />Smith Environmental Client Proj. ID: 20941, 94-261-94-20 Sampled: 09/19/96 <br />441 N. Whisman, Bldg 23 Sample Descript: D-1 Received: 09/20/96 <br />Mountain View, CA 94043 Matrix: SOLID Extracted: 09/25/96 <br />Analysis Method: 8015Mod/8020 Analyzed: 09/27/96 <br />Attention: Rich Garlow _ - -Lab Number: 9609D08-09 Reported: 10/07/96 <br />QC Batch Number: GC092596BTEXEXA <br />=nstrument 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 .................... 10 .................... 150 <br />Methyl t -Butyl Ether 0.25 N.D. <br />Benzene 0.050 N.D. <br />Toluene 0.050 N.D. <br />Ethyl Benzene 0.050 N.D. <br />Xylenes (Total) .................... 0.050 .................... 2.0 <br />Chromatogram Pattern: <br />Unidentified HC .................... .................... >C9 <br />Surrogates Control Limits % % Recovery <br />Trifluorotoluene 70 130 94 <br />Analytes reported as N.D. were not present above the stated limit of detection. <br />SEQUOIA ANALYTICAL - ELAP #1210 <br />Vytas Prrkaitis <br />Project Manager Page: <br />