Which agency is primarily responsible for ensuring the safety of the nation's public water supply?

The Environmental Protection Agency (EPA) is primarily responsible for ensuring the safety of the nation's public water supply. The EPA enforces the Safe Drinking Water Act and establishes health standards for drinking water in the United States. This agency conducts research, monitors the water supply, and works in conjunction with state and local governments to ensure that public water systems meet essential safety and health standards, thereby protecting public health.

The role of the EPA in managing and regulating water quality is crucial, as it helps prevent contamination and ensures that the water provided to communities is safe for consumption. The agency’s rigorous standards and guidelines are founded on scientific research and technical expertise, making it the leading authority in maintaining the integrity of water supply across the nation.