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61 � <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364 9233 <br /> 404 N Wiget Line Walnut Creek CA 94598 (925)988 9600 FAX 925 988 <br /> { ) 9173 <br /> Ci) <br /> VILtap <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)921 0 10 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707) 792 1865 FAX(707) 792 0342 <br /> IRCON -Sac <br /> Client Project ID IBC Stocton Sampled Aug 11, 199$ <br /> 1433 N Market Blvd Sample Descript Water Method Blank <br /> Sacramento, CA 95834Analysis Method EPA 5030/8260 Received Aug 12, 1998 <br /> Attention Deanna Santos Lab Number BLK082598 Analyzed Aug 25, 1998 <br /> Reported Aug 26, 1998 <br /> OXYGENATES by GC/MS (EPA 8260) <br /> 4nalyte Reporting Limit <br /> Sample Results <br /> f►9/L fig/L <br />:thanol <br /> ertiary butanol 500 N D <br /> 4ethyl tertiary butyl ether (MTBE) 100 N D <br />)1-Isopropyf ether (D1PE) 20 N D <br /> thyf tertiary butyl ether (ETBE) 20 N D <br /> ertfary amyl methyl ether(TAME) 20 N D <br /> 20 ND <br /> rtes reported as N D were not detected at or above the reporting limit <br /> ANALYTICAL, ELAP # 4 <br /> 3ld W Bobel / <br /> act Manager/Sacramento Laboratory <br /> S808121 EMC <3> <br />