In the administration and enforcement of this act and in the effectuation of the policy of this state to conserve its ground water resources, the director of the department of water resources in his sole discretion, is empowered:
In connection with his supervision and control of the exercise of ground water rights the director of the department of water resources shall also have the power to determine what areas of the state have a common ground water supply and whenever it is determined that any area has a ground water supply which affects the flow of water in any stream or streams in an organized water district, to incorporate such area in said water district; and whenever it is determined that the ground water in an area having a common ground water supply does not affect the flow of water in any stream in an organized water district, to incorporate such area in a separate water district to be created in the same manner provided for in section 42-604 of title 42, Idaho Code. The administration of water rights within water districts created or enlarged pursuant to this act shall be carried out in accordance with the provisions of title 42, Idaho Code, as the same have been or may hereafter be amended, except that in the administration of ground water rights either the director of the department of water resources or the watermaster in a water district or the director of the department of water resources outside of a water district shall, upon determining that there is not sufficient water in a well to fill a particular ground water right therein by order, limit or prohibit further withdrawals of water under such right as hereinabove provided, and post a copy of said order at the place where such water is withdrawn; provided, that land, not irrigated with underground water, shall not be subject to any allotment, charge, assessment, levy, or budget for, or in connection with, the distribution or delivery of water.
Idaho Code § 42-237a