 and by Mobile One Lube Express in Ottumwa and Burlington. Ottumwa Wash Express and Pro Lube Motors. Visit mobileoneiowa.com. Ottumwa Radio would like to remind all listeners about a few rules for all local contests. You must be a legal U.S. resident. Listeners are eligible to win every two weeks per household. During a phone-in contest, Ottumwa Radio is not responsible for phone cutoffs or drops.