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Sequoia 680 Chesapeake Dave 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%73 <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/971222-F1 Sampled 12/22/97 , <br /> 1680 Rogers Avenue Sample Descript B-Port Received 12/23/97 ' <br /> San Jose, CA 95112 Matnx LIQUID <br /> _= Analysis Method EPA 8260 Analyzed 12/30/97 <br /> ^„ Attention Fran Thie _ Lab Number 9712F01=03 Reported-01 f07J96T7- <br /> CC Batch Number MS122697MTBEH6A <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-Dichlorcethane-d4 76 114 94 <br /> Analytes reported as N D are not present above the stated limit of detection <br /> SEQUOIA L ICAL - ELAP #1210 <br /> Peggy Penner <br /> Project Manager Page z <br />