A public agency may pay the principal of and interest on bonds:
(1) from the levy and collection of taxes on all taxable property in the public agency's boundaries if the public agency is authorized by law to levy and collect property taxes;
(2) by pledging all or part of the designated revenues from the ownership or operation of physical property of a solid waste management system, including a resource recovery system, or from a contract entered into by a public agency under this chapter; or
(3) from other income of the public agency.