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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)988-9673 <br /> 819 Striker Avenue.Suite 8 Sacramento.CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd. North,Ste.D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos, CA 940 70-4111 (650)232-9600 FAX(650)232-9612 <br /> Blaine Tech Services Client Proj. ID: Chevron 9-0557/990217-Kl Sampled: 02/17/99 <br /> 1680 Rogers Avenue Sample Descript: MW-1 Received: 02/17/99 <br /> San ,lose, CA 95112 Matrix: LIQUID <br /> Analysis Method: 8015Mod/8020 Analyzed: 02/26/99 <br /> Attention: Christine Lillie Lab Number: 9902B56-01 Reported: 03/04/99: <br /> GCO22699802a <br /> QC Batch Number: 05A <br /> Total Purgeable 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 2.5 N•D, <br /> Benzene 0.50 N.D. <br /> Toluene 0.50 N.D. <br /> Ethyl Benzene 0.50 N.D. <br /> Xylenes (Total) 0.50 N.D. <br /> Chromatogram Pattern: <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 94 <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> 1 Mei Shin <br /> oject Manager page. 1 <br />