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4D <br /> Sequoia 680 Chesapeake Dnve 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 /> �IIr Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> is <br /> Touchstone Developments Client Prod ID Chevron 9-2033, 2033-2 Sampled 10/17/96 <br /> P 0 Box 2554 Sample Descrlpt A6 Received 10/18/96 <br /> Santa Rosa, CA 95405 Matrix SOLID Extracted 10/21/96 <br /> Analysis Method 8015Mod/8020 Analyzed 10/21/96 <br /> Attention Jeff Monroe Lab Number 9610627-02 Reported 10j22j96 <br /> X Batch Number GC1021966TEXEXA <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 1 0 1 9 <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 00070 <br /> Chromatogram Pattern <br /> Unidentified HC C9-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 <br /> 0 <br /> nalytes reported as N D were not present above the stated limit of detection <br /> iEQUOIA ANALYTICAL - ELAP #1210 <br />,'elWollett <br />'rolect Manager Page 2 <br /> r� <br />