Tex. Gov't Code § 1502.056
(a) If the revenue of a utility system, park, or swimming pool secures the payment of public securities issued or obligations incurred under this chapter, each expense of operation and maintenance, including all salaries, labor, materials, interest, repairs and extensions necessary to provide efficient service, and each proper item of expense, is a first lien against that revenue. For a municipality with a population of more than one million but less than two million, the first lien against the revenue of a municipally owned utility system that secures the payment of public securities issued or obligations incurred under this chapter also applies to funding, as a necessary operations expense, for a bill payment assistance program for utility system customers who:
(b) An expense for a repair or extension is a first lien only if, in the judgment of the governing body of the municipality, the repair or extension is necessary to:
Added by Acts 1999, 76th Leg., ch. 227, Sec. 1, eff. Sept. 1, 1999. Renumbered from Government Code Sec. 1502.058 and amended by Acts 1999, 76th Leg., ch. 1064, Sec. 22, eff. Sept. 1, 1999.
Acts 2007, 80th Leg., R.S., Ch. 166 (S.B. 1430), Sec. 1, eff. May 22, 2007.
Acts 2011, 82nd Leg., R.S., Ch. 429 (S.B. 1002), Sec. 1, eff. June 17, 2011.
Acts 2011, 82nd Leg., R.S., Ch. 1003 (H.B. 2207), Sec. 1(a), eff. June 17, 2011.
Acts 2017, 85th Leg., R.S., Ch. 25 (S.B. 758), Sec. 1, eff. September 1, 2017.