Which rule governs public notification requirements for drinking water systems?

• A. SWTR
• B. Lead and Copper Rule
• C. Public Notification Rule
• D. IESWTR

Answer: (C)

Public notification requirements are governed by the Public Notification Rule. This rule specifies what a drinking water system must tell customers when there’s a violation or health concern, including what information to include, who must be notified, and the allowed timeframes and methods for notification. It’s focused on communicating with the public in a timely and clear way so consumers understand potential risks. The other rules cited set treatment standards or monitoring requirements—such as how water should be treated to remove contaminants or how corrosion and monitoring are handled—but they don’t establish the public notification procedures.