All monies received from the issuance of any securities under this act shall be used solely for the purpose or purposes for which issued and to defray the cost of the project thereby delineated. Any accrued interest and any premium shall be applied to the cost of the project or to the payment of the interest on or the principal of the securities, or both, or shall be deposited in a reserve therefor, or any combination thereof, as the board may determine.
W.S. 21-17-421