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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650).464-9600 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 /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> is <br /> Blaine Tech Services Client Proj ID Texaco 62540276/980521-D1 Sampled 05/21/98 <br /> 1680 Rogers Avenue Sample Descript MW-13 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 9805E60-12 Reported 06101/98 <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 0 50 N D <br /> Toluene 050 N D <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 97 <br /> 10 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> sEauo,A A YICAL - ELAP #1849 <br /> gy nner <br /> Project Manager Page 12 <br />