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680 Chesapeake Drrve Redwood City CA 94063 (650) 364-9600 FAX(650)364-9Z33 <br /> Sequoia 404 N wi$et iant Walnut Creek,CA 94598 (925)988-9600 FAX(915)988-9673 <br /> ID <br /> Analytical 819 Striker Avenue.Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)911-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industnal Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Jr.- <br /> �: ss» - L <br /> Delta Environmental Client Proj ID Exxon 7-3708, D093-809 Sampled 03/05/99 <br /> ' 3164 Gold Camp Drive, #200 Sample Descrlpt VW-3 Received 03/05/99 <br /> Rancho Cordova, CA 95670 Matrix LJOUID <br /> Analysis Method 8015Mod/8020 Analyzed 03/17/99 <br /> Attention Jim Brownell Lab Number 9903430-10 Reported 03J18199 <br /> OC Batch Number GC031799BTEX30A <br /> Instrument ID GCHP30 <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 2 5 N D <br /> Benzene 050 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 0 50 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 8o <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> APichette <br /> jest Manager Page 2 <br />