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Sequoia 680 Chesapeake Drive Redwood GM 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 Prod ID Shell Stockton 980129-S1 Sampled 01/29/98 <br /> 1680 Rogers Avenue Sample Descript Caltrans Received 01/30/98 <br /> San,dose, CA 95112 Matrix LIQUID <br /> Analysis Method EPA 8260 Analyzed 02/10/98 <br /> Attention Fran Thie Lab Number 9801 H81-08 Reported 02112198 <br /> QC Batch Number MS020998MTBEH6A <br /> Instrument ID H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L. <br /> Ethanol 500 N D <br /> t-Butanol 100 N D <br /> Methyl t-Butyl Ether (MTBE) 20 N D <br /> Di-Isopropyl Ether(DIPE) 20 N D <br /> Ethyl t-Butyl Ether(ETBE) 20 N D <br /> t-Amyl Methyl Ether (TAME) 20 N D <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 76 114 100 <br /> i <br /> Analytes reported as N D wer resent above the stated limit of detection <br /> SEQUOIA IC - ELAP #1210 <br /> Allikk <br /> gy Penner <br /> Project Manager Page 22 <br />