Notwithstanding any other provisions of law, a contract entered into pursuant to ORS 758.410, when approved by the Public Utility Commission as provided in ORS 758.420 to 758.475, shall be valid and enforceable; provided, that the commission shall approve such a contract only if the commission finds, after a hearing as provided in ORS 758.420 to 758.475, that the contract will eliminate or avoid unnecessary duplicating facilities, and will promote the efficient and economic use and development and the safety of operation of the utility systems of the parties to the contract, while providing adequate and reasonable service to all territories and customers affected thereby.
ORS 758.415