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Sequoia 6S0 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAK(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (92S)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> �1111� Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> i <br /> Sequoia Analytical -Sac _ "Client Prol ID - S904240 (Secor International) Sampled <br /> 819 Striker Ave , Suite 8 Sample Descript Method Blank Received 04/20/99 <br /> Sacramento, CA 95834 Matrix LIQUID <br /> Analysis Method EPA 8015 Mod Analyzed 04/21/1"""" <br /> Attention Sandra Hanson Lab Number 9904793-04 " _ Reported 04f26j99 <br /> QC Batch Number GC0421991SHSHS6 <br /> Instrument 1D GCV-01 <br /> Industrial Solvents <br /> Analyte Detection Limit Sample Results <br /> mg/L mg/L <br /> Methanol 1 0 N D <br /> Surrogates Control Limits % % Recovery <br /> Pentanol RTX 200 55 157 95 <br /> Pentanol DBWAX 57 170 79 <br /> is <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> roject Manager Page 4 <br />