Versions of Texas Water Code 15.439 - Rules on LawServer 2024 Texas Water Code 15.439 – Rules 2023 Texas Water Code 15.439 – Rules 2022 Texas Water Code 15.439 – Rules 2019 Texas Water Code 15.439 – Rules 2018 Texas Water Code 15.439 – Rules 2016 Texas Water Code 15.439 – Rules 2014 Texas Water Code 15.439 – Rules