7-13-4311. Authorization to furnish water and sewer services to industrial consumers. (1) Subject to the provisions of subsection (2), the city or town council of any city or town within Montana that owns and operates a municipal water system, a municipal sewage system, or both, to furnish water services, sewage services, or both, to the inhabitants of the city or town as a public utility may, in addition to all other powers, furnish water from the water system and sewage services from the sewage system:
(a) to any person, factory, or other industry located within the corporate limits of the city or town; or
(b) to any person, factory, or other industry located outside the corporate limits of the city or town.
(2) (a) The services authorized by subsection (1) must be furnished at reasonable rates.
(b) Delivery of water and delivery of sewage services by a city or town to or for the use of any person, factory, or other industry located outside the corporate limits of the city or town must be made within or at the boundary line of the corporate limits of the city or town or from any existing waterline or sewerline of the city or town located outside of the corporate limits of the city or town, except as provided in this part.