30 Tex. Admin. Code § 297.21
A permit under the Texas Water Code, §11.121, for direct diversion is required of all persons who propose to divert state water from a watercourse or its underflow, unless the water is to be used for domestic and livestock uses. The manner of diversion may be by pumping or by gravity flow.
Source Note:The provisions of this §297.21 adopted to be effective May 29, 1986, 11 TexReg 2330.