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ID <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(510)988 9673 <br /> 4W Analytical 819 Sinker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Touchstone Developments Client Prol ID Chevron 9-2033, 2033-2 Sampled 10/09/96 <br /> P O Box 2554 Sample Descript Al Received 10/10/96 <br /> Santa Rosa, CA 95405 Matrix SOLID Extracted 10/11/96 <br /> Analysis Method 8015Mod/8020 Analyzed 10/11/96 <br /> Attention Jeff Monroe Lab Number 9610612-01 Reported 10J14J96 <br />)C Batch Number GC1 01 196BTEXEXA <br /> nstrument ID GCHP07 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> mg/K9 m9/K9 <br /> TPPH as Gas 1 0 N D <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 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 128 <br /> 9 <br /> ialytes reported as N D were not present above the stated limit of detection <br /> EQUOIA ANALYTICAL - ELAP #1210 <br />-vWilett <br /> rolect Manager Page 1 <br /> r� <br />