Kan. Stat. § 12-631m
Any county, sewer district, improvement district or public agency authorized by law to establish and/or operate a sewerage system or a part thereof, may, by ordinance or resolution of such county, sewer district, improvement district or agency establish and collect just and equitable rates of service charges to be paid to such county, district or agency for the use of the sewerage system by all persons, firms, corporations, departments of government of the state or of the United States and political subdivisions thereof and any other organizations or users of the system whose premises are connected to the sewer system of such county, district or agency. "Sewerage system" as used in this section means sewers, mains, pumping stations, treatment works, storage facilities and all appurtenance to the collection, storage, treatment and disposal of sewage and/or waste water. All charges collected pursuant to the provisions of this section shall be used for sewerage system purposes.
K.S.A. 12-631m