Neb. Rev. Stat. § 14-360: Neb. Rev. Stat. § 14-360

(1) Except as provided in subsection (2) of this section, a city of the metropolitan class shall have the power to:

(a) Lay out the city, or parts thereof, or portions of the extraterritorial zoning jurisdiction of the city, into suitable districts for the purpose of establishing a system of sewerage and drainage;

(b) Provide such system and regulate the construction and repair and use of sewers and drains, the reconstruction of sewers in any district or part of such district, and all proper house construction and branches;

(c) Provide penalties for any obstruction of, or injury to, any sewer or part of such sewer; and

(d) Require and compel sewer connections to be made.

(2) The city shall not create a district outside the corporate limits of such city when the district includes land already included within a sanitary and improvement district without the consent of the trustees of such district.