A penalty collected in a suit under this subchapter for a violation of Chapter 28 of this code or Chapter 401, Health and Safety Code, shall be paid to the state. If the suit is brought by a local government or, in the case of a violation of Chapter 401, Health and Safety Code, a person affected as defined in that chapter, the court shall include in any final judgment in favor of the local government or affected person an award to cover reasonable costs and attorney's fees.
Tex. Water Code § 7.354