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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-%73 <br /> 819 Striker Avenue Suite$ Sacramento CA 95834 (916)421-9600 FAX(916)921-0100 <br /> qwr Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)79Z-0342 <br /> ` Blame Tech Services Client Prol ID Shell 620"W Charter Way Sampled 11/09/98 <br /> 1680 Rogers Avenue Sample Descript MW9 Received 11/11/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> ` Analysis Method 8015Mod/8020 Analyzed 11/16/98 <br /> Attention Fran Thie Lab Number 9811689-09 Reported 11 j25j98 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 250 6400 <br /> Methyl t-Butyl Ether 12 N D <br /> Benzene 25 110 <br /> Toluene 25 N D <br /> Ethyl Benzene 2 5 71 <br /> Xylenes (Total) 25 19 <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 95 <br />• <br /> Analytes reported as N D ere not present above the stated limit of detection <br /> SEQUO L ICAL - ELAP #1210 <br /> 0 g Penner <br /> ect Manager <br /> Page 9 <br />