Which agencies set regulatory standards for wastewater treatment?

The appropriate response highlights the role of both the Environmental Protection Agency (EPA) and state environmental agencies in establishing regulatory standards for wastewater treatment.

The EPA sets national standards for water quality and works to ensure that these standards are enforced across the states through collaboration with state agencies. Each state has its own environmental agency that adapts these federal standards to local conditions, creating regulations that are tailored to the specific needs and environmental concerns of that state. Their combined efforts ensure that wastewater treatment practices protect public health and the environment.

In contrast, other options such as only relying on state water boards, international organizations, or local health departments, do not encompass the broad regulatory framework established by these two key entities. State water boards operate within the guidelines set by the EPA but do not establish regulations independently of the federal framework. International organizations may influence policies but do not directly set local regulatory standards. Local health departments often address public health aspects but are not the primary bodies responsible for wastewater treatment standards. Thus, the collaboration between the EPA and state agencies is critical for comprehensive wastewater regulatory practices.