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680 Chesapeake Drive Redwood City CA 94063(650)364-9600 FAX(650)364-9233 <br /> Sequoia 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)921-6100 <br /> Analytical <br /> 1455 McDowell Wd North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> -Stockton Client Protect IU 20-1311-40 901 Sampled NIA <br /> qqeihïż½elder <br /> 25 East Myrtle St Sample Descnpt Method Blank Received NIA <br /> Stockton, CA 95205 Analysis Method EPA 5030/8260 Extracted Nov 11, 19W <br /> Attention Tony Martin Lab Number BLK111198 Analyzed Nov 12, 1998, <br /> Reported Nov 20, 1998 <br /> OXYGENATES by GUMS (EPA 8260) <br /> ' Analyte Reporting Limit Sample Results <br /> Ng/kg pg/kg <br /> Ethanol 25,000 N D <br /> Tertiary butanol 5,000 N D <br /> Methyl tertiary butyl ether(MTBE) 100 N D <br /> Di-isopropyl ether(DIPE) 100 N D <br /> ' Ethyl tertiary butyl ether(ETBE) 100 N D <br /> Tertiary amyl methyl ether(TAME) 100 N D <br /> ' Surrogate Control Limits, % % Recovery <br /> 1,2-Dichloroethane-d4 70-121 94 <br /> 1 Analytes reported as N D were not detected at or above the reporting limit <br /> SE'?aC <br /> IA ANALYTICALELAF#1210 <br /> ndSchnei er <br /> rolManagerISacramento Laboratory <br /> S811082 KLF <6> <br />