ORS § 545.347
The board of directors may also enter into any obligation or contract with the United States for the construction, operation and maintenance of the necessary works for the delivery and distribution of water under the Act of Congress of December 5, 1924, entitled "An act making appropriations to supply deficiencies in certain appropriations for the fiscal year ending June 30, 1924, and prior fiscal years, to provide supplemental appropriations for the fiscal year ending June 30, 1925, and for other purposes." In such contract, the board of directors may provide for payment of charges to the United States upon the basis authorized by the Act of Congress of December 5, 1924, commonly known as the "Fact Finders' Act," and under the rules and regulations that may be promulgated by the Bureau of Reclamation of the United States.
ORS 545.347