TUC.2.4.010 Adequate Service and Reasonable Rates
All Public Utilities shall furnish reasonably adequate service and facilities. The charge made by any Public Utility for any heat, light, water, telecommunications service or power produced, transmitted, delivered or furnished or for any service rendered or to be rendered in connection therewith shall be reasonable and just, and every unjust or unreasonable charge for such service is prohibited and declared unlawful. In the case of a public utility furnishing water, the commission shall include, in the determination of water rates, the cost of fluoridating the water in the area served by the public utility furnishing water if the governing body of the city, village or town which owns or is served by the public utility furnishing water authorizes the fluoridation of water by the public utility furnishing water.