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i <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (9Z5)988-9600 FAX(925)988-9673 <br /> faller <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)792-034Z <br /> • <br /> Gettly-an[-Geostries <br /> ateg - Client D Prof-I --Tosco SS#5981, 180138 85 µ Sampled= <br /> erR05%27/98 <br /> 6747 Sierra Court Suite J Sample Descript MW-8 Received 05/28/98 <br /> Dublin, CA 94568 Matrix LIQUID = <br /> Analysis Method 8015Mod/8020 Analyzed06/04/98 <br /> Attention Deanna Harding _ Lab Number 9805H47-08 _ _ __ Reported_07124/98 <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 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 /> Trifluorotoluene 70 130 110 <br /> 0 <br /> Analytes reported as N D were not present above the stated lint of detection <br /> SEQUOIA ANALYTICAL - ELAP 41849 <br /> Tjoranicher <br /> P ct Manager Page 15 <br />