(1) Twenty-six thousand acre-feet of water per year is reserved from the John Day/McNary Pools reach to provide for future municipal supply to the year 2020.

(2) The reservation for municipal use does not guarantee any existing or future supply entity a specific quantity of water. Municipal water supply utilities must petition the department for reservation of water, for their particular needs, according to procedures of chapter 173-590 WAC.

(3) The priority dates of water right filings under the municipal reservation shall be the effective date of this regulation.