Neb. Rev. Stat. § 17-808: Neb. Rev. Stat. § 17-808

If the board of public works determines that the best interests of the city of the second class and the patrons of the utility will be better or more economically served, the board may employ the duly elected city clerk as ex officio bookkeeper and collector for the utility or utilities, and he or she may be paid a reasonable salary for the extra services required of him or her in such position in addition to his or her salary as city clerk.