Relating to a study by the Texas Commission on Environmental Quality regarding the protection of certain water facilities from catastrophes.

HB 156 requires the Texas Commission on Environmental Quality (TCEQ) to study methods for protecting public drinking water systems and wastewater treatment facilities from disruptions like electrical outages, extreme weather, climate change impacts, and other threats. The study must consider specific risks listed in the bill, including those under state law, and include actionable recommendations. The TCEQ must submit a final report with these recommendations to the governor and legislature by September 1, 2026. This bill directly affects water facilities regulated under Texas Health and Safety Code Chapter 341 and Water Code Chapter 26. It does not create new laws but mandates a study to inform future protections.