30 Tex. Admin. Code § 297.23
Except as provided by the Texas Water Code, §11.142, a permit is required for a dam and/or a reservoir on a watercourse, except for a natural reservoir or lake. The permit will authorize the appropriation of state water to fill the reservoir, divert, and use the water or use the water in place.
Source Note:The provisions of this §297.23 adopted to be effective May 29, 1986, 11 TexReg 2330.