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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 /> �I,,a 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 /> 0 <br /> Blaine Tech Services Client Prod ID Texaco 440 W Charter Way Sampied 08/11/98 <br /> 1680 Rogers Avenue Sample Descript MW4 Received 08/13/98 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method 8015Mod/8020 Analyzed 08/20/98 <br /> Attention Deidre Kerwin Lab Number 9808753-04 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 50 360 <br /> Methyl t-Butyl Ether 25 25 <br /> Benzene 050 33 <br /> Toluene 050 N D <br /> Ethyl Benzene 050 N D <br /> Xylenes (Total) 050 N D <br /> Chromatogram Pattern Gas <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 103 <br /> o1, <br /> Analytes reported as N D wer n I present above the stated lima of detection <br /> SEQUOIA A A ICNL - ELAP #1210 <br /> ,gy Penner <br /> oiect Manager Page 4 <br />