Who must public water systems notify before implementing changes that affect their production or distribution facilities?

Public water systems are required to notify the Texas Commission on Environmental Quality (TCEQ) before making changes that impact their production or distribution facilities. This is because TCEQ is the state agency responsible for regulating public drinking water systems to ensure they provide safe and reliable water. When a public water system plans to make modifications—such as alterations in treatment methods, changes in source water, or restructuring distribution networks—they must communicate these plans to TCEQ. This notification process allows the agency to assess potential impacts on water quality and availability, ensuring compliance with state and federal standards.

Other entities, such as the EPA, local governments, and health departments, may also have roles in public health and safety, but the primary responsibility for regulating these changes lies with TCEQ at the state level. Therefore, involving TCEQ is crucial for overseeing the proper management of public water systems and for maintaining the integrity and safety of drinking water.