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Sequoia 680 Chesapeake Dnve Redwood Qty,CA 94063 (415) 364 9600 FAX(415) 364-9233 <br /> 404 N Wtget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Iwo Analytical 819 Stnker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> 0 <br /> Touchstone Developments Ctient Prof I D Chevron 9-2033, 2033-2 Sampled 11/11/96 <br /> P O Box 2554 Sample Descript A44 Received 11/12/96 <br /> Santa Rosa, CA 95405 Matrix SOLID Extracted 11/13/96 <br /> Analysis Method 8015Mod/8020 Analyzed 11/13/96 <br /> Attention Jeff Monroe Lab Number 9611596-15 Reported 11 J1 4J96 <br />)C Batch Number GC1 1 1396BTEXEXA <br />'istrument 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 1 0 50 <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 0 012 <br /> Chromatogram Pattern <br /> Unidentified HC C8-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 82 <br /> i <br /> ialytes reported as N D were not present above the stated limit of detection <br /> EQUOIA ANALYTICAL - ELAP 41210 <br /> w Ilett <br /> oject Manager Page 15 <br /> s� <br />