(a) The district may issue bonds or other obligations payable wholly or partly from ad valorem taxes, assessments, impact fees, revenue, grants, or other money of the district, or any combination of those sources of money, to pay for any authorized purpose of the district.
(b) The district may borrow money on terms determined by the board. § 375.205, Local Government Code, does not apply to a loan, line of credit, or other debt from a bank or financial institution secured by revenue other than ad valorem taxes.

(c) The limitation on the outstanding principal amount of bonds, notes, and other obligations provided by § 49.4645, Water Code, does not apply to the district.
(d) At the time the district issues bonds payable wholly or partly from ad valorem taxes, the board shall impose a continuing direct annual ad valorem tax, without limit as to rate or amount, for each year that all or part of the bonds are outstanding as required and in the manner provided by Sections 54.601 and 54.602, Water Code.