Tex. Water Code § 15.113
(a) The board may inspect the construction of a project any time to assure that:
(b) Inspection of a project by the board does not subject the state to any civil liability.
Formerly Sec. 15.110, added by Acts 1981, 67th Leg., 1st C.S., p. 102, ch. 12, Sec. 1, eff. Nov. 10, 1981. Amended by Acts 1985, 69th Leg., ch. 795, Sec. 1.040, eff. Sept. 1, 1985. Renumbered by Acts 1985, 69th Leg., ch. 133, Sec. 2.04. Amended by Acts 1987, 70th Leg., ch. 977, Sec. 11, eff. June 19, 1987.