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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9640 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> �illl� 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 />• <br /> Sequoia Analytical-San Carlos Client Pro ID L904208 Shel12575 Count Clu Sampled 04/15/99 <br /> 1551 Industrial Road Sample Descript L904208-07/Caltrans Country Received 042099 <br /> San Carlos, CA 94070 Matrix LIQUID <br /> Analysis Method EPA 8015 Mod Analyzed 04/22/99 <br /> Attention M Gregory Lab Number 9904794-07 Reported 04f29199 <br /> QC Batch Number GC0422991SHSHSB <br /> Instrument ID 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 85 <br /> Pentanol DBWAX 57 170 79 <br />• <br /> Analytes reported as N 17 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> 91'ectZriager Page 7 <br />