Utah Code § 17D-1-504
§ 17D-1-504. Pledge of revenues to pay for bonds.
Bonds may be payable from and secured by the pledge of all or any specified part of: (1) the revenues to be derived by the special service district from providing its services and from the operation of its facilities and other properties; (2) sales and use taxes, property taxes, and other taxes; (3) federal, state, or local grants; (4) in the case of special assessment bonds, the special assessments pledged to repay the special assessment bonds; and (5) other money legally available to the special service district.