What does a Tier 2 violation require from operators?

A Tier 2 violation involves a significant risk to public health or the violation of a drinking water standard that necessitates prompt communication with the public. By requiring a public announcement within 30 days, the regulation ensures that consumers are promptly informed about the potential risks associated with their drinking water. This immediate communication allows the public to take necessary precautions to protect their health, such as using alternative water sources if available.

The other options do not specifically align with the requirements of a Tier 2 violation. While frequent monitoring, immediate remediation, or written reporting to the EPA may be important aspects of a comprehensive water safety plan, they do not specifically require public notification within the 30-day window, which is the defining factor for a Tier 2 violation. The focus is on transparency and ensuring that the public is aware of the risks involved with the water quality.