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\ ���[l 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia q 404 N Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-%73 <br /> �,, Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> i1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services Client Pro! ID Chevron 9-4275 Sampled 12/17/98 <br /> 1680 Rogers Avenue Sample Descrlpt MW2 Received 12/18/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 801 SMod/8020 Analyzed 12/30/98 <br /> Attention Christine Lillie Lab Number 9812C63-02 Reported 01J06199 <br /> QC Batch Number GC123098802004A <br /> Instrument ID HP4 <br /> - -Total Purgeable-Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 100 1000 <br /> Methyl t-Butyl Ether 50 10 <br /> Benzene 10 15 <br /> Toluene 10 N D <br /> Ethyl Benzene 1 0 42 <br /> Xylenes (Total) 1 0 30 <br /> Chromatogram Pattern <br /> Weathered Gas C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 79 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1271 <br /> - <br /> ory <br /> Project Manager Page 2 <br />