(a) A utility district that has operated a sewerage system in the unincorporated territory of a county for twenty-five (25) years or more shall not cease operating the sewerage system in the unincorporated territory so long as the sewerage system maintains sufficient capacity to continue to provide sewerage service in such unincorporated territory, as determined by a study, report, or other information and evidence presented to the Tennessee board of utility regulation in a hearing pursuant to § 7-82-702(b)(1)(E).
(b) This section does not affect, impact, or interfere with the rates in existing or future water or wastewater services contractual arrangements, or renewals or extensions of such existing or future agreements.