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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 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> Blaine Tech Services - Client Proj-ID w Shell Stockton/971202-Ll Sampled 12/02/97 <br /> 1680 Rogers Avenue Sample Descrlpt Caltrans Received 12/03/97 <br /> San Jose, CA 95112 Matrix LIQUID <br /> Analysis Method=EPA-60 15 Mod Analyzed 12/08/97—. <br /> Attention Fran Thle Lab Number 9712358-02 Reported 12JI9197 <br /> QC Batch Number GC1208971SHSHSB <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 93 <br /> Pentanol DBWAX 57 170 108 <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA A ICAL - ELAP #1210 <br /> Peggy Penner <br /> Project Manager Page e <br />