What is a key EPA recommendation for state regulatory programs related to public water supply?

The key recommendation by the EPA for state regulatory programs related to public water supply emphasizes the importance of comprehensive water quality sampling, which includes both bacteriological and chemical tests. This is crucial because it ensures that water supplies are safe for human consumption and meet safety standards. Bacteriological tests help detect harmful pathogens that can cause waterborne diseases, while chemical tests identify contaminants that may pose long-term health risks. By integrating both testing types, regulatory programs can effectively safeguard public health and maintain the integrity of water supplies.

Annual testing alone or routine aesthetic testing, which focuses on taste, color, and odor, do not encompass the full range of potential threats to water quality. Similarly, regular infrastructure updates, although important for maintaining the physical systems that deliver water, do not directly address the analysis and assurance of water safety through rigorous sampling. Therefore, the most effective approach is a robust sampling strategy that covers both bacteriological and chemical parameters to ensure comprehensive monitoring and protection of public health.