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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 (510)988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Iwo 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 0 <br /> Blatne Tech Services Client Prol ID Texaco 62540276/980521-D1 Sampled 05/21/98 <br /> 1680 Rogers Avenue Sample Descrlpt MW-4 Received 05/22/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 05/27/98 <br /> Attention Kent Brown Lab Number 9805E60-04 Reported 06/01198 <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 1000 5200 <br /> Methyl t-Butyl Ether 50 200 <br /> Benzene 10 1000 <br /> Toluene 10 24 <br /> Ethyl Benzene 10 38 <br /> Xylenes (Total) 10 30 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 83 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA A YTICAL - ELAP #1849 <br /> gy enner <br />�Iroject Manager Page 4 <br />