Tex. Water Code § 28.012: CERTAIN WELLS TO BE PLUGGED OR CASED.

The owner of a water well which encounters salt water or water containing mineral or other substances injurious to vegetation or agriculture shall securely plug or case the well in a manner that will effectively prevent the water from escaping from the stratum in which it is found into another water-bearing stratum or onto the surface of the ground.

Amended by Acts 1977, 65th Leg., p. 2207, ch. 870, Sec. 1, eff. Sept. 1, 1977. Renumbered from Sec. 28.003 by Acts 1983, 68th Leg., p. 651, ch. 148, Sec. 1, eff. May 18, 1983.