Texas Water Code - WATER § 60.105. Expenses to be Paid From Current Revenues

(1) all expenses necessary to the operation and maintenance of the improvements and facilities, including the cost of the acquisition of properties and materials necessary to maintain the improvements and facilities in good condition and operate them efficiently, the wages and salaries paid to the employees of the district, and other expenses necessary to the efficient operation of the improvements and facilities;

(2) the annual or semiannual interest on any obligations issued under this subchapter and payable out of the revenue of the improvements and facilities; and

(3) the amount required to be paid annually into the sinking fund for the payment of any obligations issued under this subchapter and payable out of the revenue of the improvements and facilities.