Upon election, the Board of Directors of an irrigation district shall make application to the Board for the use of any stream or groundwater to serve the needs of the district, and such water use shall be governed by the laws of the State and the rules and regulations of the Board pertaining thereto. The Board of Directors shall prepare and use a uniform service agreement providing for the equitable distribution and use of water among the members of the district which shall be filed with the Board.
Okla. Admin. Code § 785:10-9-9