All water, the right to the use of which is acquired by a district under any contract with the United States shall be distributed and apportioned by the district in accordance with the applicable acts of Congress, the rules and regulations of the Secretary of the Interior thereunder, and the provisions of the contract, and provision may be made in the contract for the refusal of water service to any or all land which may become delinquent in the payment of any assessment levied for the purpose of carrying out the contract.