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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 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento to 95834 (916)921-9600 FAX(916)971 0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707 792-1865 FAX(707)792-0342 <br /> r <br /> Blaine Tech Services Client Prol ID Texaco 440 W Charter Way Sampled 08/11/98 <br /> 1680 Rogers Avenue Sample Descript MW11 Received 08/13/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/24/98 <br /> Attention Deidre Kerwin Lab Number 9808753-10 Reported 08J26J98 <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 2500 31000 <br /> Methyl t-Butyl Ether 125 150 <br /> Benzene 25 12000 <br /> Toluene 25 1200 <br /> Ethyl Benzene 25 710 <br /> Xylenes (Total) 25 1500 <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 102 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA AN ICAL - ELAP #1210 <br /> i <br /> ggy Pen er <br /> 1 olect Manager Page 10 <br /> A <br />