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680 peake Drive Redwood City.CA 9406 (650)364-9600 FAX(650)364-9233 <br /> Sequoia <br /> 404 N.Wiget lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-OI00 <br /> 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> G...... -Ryan-t5ubl n Client Project ID: Tosco 76#11193, Stockton Sampled: Dec 10, 1998:;;: <br /> 6747 Sierra Court, Suite J Sample Descript: Soil, 3E Received: Dec 10, 1998< <br /> Dublin, CA 94568 Analysis Method: EPA 8260 Analyzed: Dec 11, 1998'. <br /> Attention: Haig Kevork Lab Number: 812-0917 Reported: Dec 14, 1998-'': <br /> OXYGENATED COMPOUNDS (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> Ng/kg Ng/kg <br /> Ethanol.............................................................................. 250,000 ..................................... N.D. <br /> t-Butanol............................................................................ 50,000 ..................................... N.D. <br /> Methyl t-Butyl ter ...................................... 1,000 ..................................... 80,000 <br /> ►-sopropy ter ................................................. 1,000 ..................................... N.D. <br /> Ethyl t-Butyl Ether(ETBE)................................................. 1,000 .......................I............. N.D. <br /> t-Amyl Methyl Ether(TAME)............................................. 1,000 ..................................... N.D. <br /> Surrogates Control Limit% % Recovery <br /> 1,2-Dichloroethane-d4...................................................... 50 150..................................... 98 <br /> Analytes reported as N.D.were not present above the stated limit of detection. Because matrix effects and/or other factors <br /> required additional sample dilution,detection limits for this sample have been raised. <br /> SEQUOIA ANALYTICAL,#1271 <br /> J1-11$u <br /> J ianne Fegley <br /> roject Manager <br /> 8120913.GET <6> <br />