Iowa Code § 357.27: Public property in district.

Whenever property of the state of Iowa, or any political subdivision thereof, shall be included either wholly or in part within the water district and the state of Iowa or the political subdivision owns facilities which may be used as a part of such water system, the executive council, board of supervisors, or city council, as the case may be, may permit the use of the facilities for such consideration and on such terms as may be agreed upon with the board of trustees.