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.i 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(9Z5)988-9673 <br /> qwr Analytical 819 Striker Avenue Suue 8 Sacramento CA 95834 (916)921-9600 FAX(916)92I-0100 <br /> • 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792 1865 FAX(707)792-034Z <br /> Blaine Tech Services Client Pro3 ID Chevron 9-8264/980609-JI Sampled 06/09/98 <br /> 1680 Rogers Avenue Sample Descnpt MW-1 Received 06/10/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 06/11/98 <br /> Attention Fran Thre Lab Number 9806003-01 Reported 06J25198 <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 50 N D <br /> Methyl t-Butyl Ether 25 N D <br /> Benzene 0 50 <br /> Toluene 050 N D <br /> Ethyl Benzene <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> 0 50 N D <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoiuene 70 130 97 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1849 <br />.A501� � <br /> regory <br /> rolect Manager page 2 <br />