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4D <br /> Sequoia 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(5i0)988 9673 <br /> X111 Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Fouchstone Developments Client Prol ID Chevron 9-2033, 2033-2 Sampled 10/09/96 <br /> 3 0 Box 2554 Sample Descript OX1-12 Received 10/10/96 <br /> Santa Rosa, CA 95405 Matrix SOLID Extracted 10/14/96 <br /> Analysis Method 8015Mod/8020 Analyzed 10/15/96 <br /> Attention Jeff Monroe Lab Number 9610708-01 Reported 10j1 8Y96 <br /> C Batch Number GC101496BTEXEXA <br /> strument ID GCHP07 <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 N D <br /> Methyl t-Butyl Ether 0 025 0 034 <br /> 3enzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 0 013 <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 116 <br /> • <br /> ialytes reported as N D were not present above the stated limit of detection <br /> EQUOIA ANALYTICAL - ELAP 41210 <br /> ave Ilett <br />,olect Manager Page 1 <br />