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r <br /> Sequoia 680 Chesapeake Drive Redwood City (650)364-9600 FAX(650) -9233 <br /> 404 N Wlget Lane Walnut Creek.CAA 945984598 (925)988-9600 FAX(9Z5)988 9$8-9673 <br /> � Analytical 819 Straker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)79Z-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carios, CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Blaine Tech Services Client Prod ID _ Chevron 9-2033/990217-P1 Sampled 02/17/99 <br /> 1680 Rogers Avenue Sample Descript TB Received 42/17/99 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 02/25/99 <br /> Attention Christine Lillie Lab Number 9902842-04 _ Reported 03JO5199 <br /> QC Batch Number GCO225996TEX03A <br /> Instrument ID GCHP03 <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 050 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 /> Tnfluorotoluene 70 130 98 <br /> 0 <br /> Analytes reported as N D were not present above the stated hrnit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41210 <br /> i <br /> Wi Mei Shin <br /> olect Manager Page 7 <br /> g� <br />