What is the maximum time frame required for public notification of a Tier 1 violation?

The maximum time frame required for public notification of a Tier 1 violation is 24 hours. Tier 1 violations are considered serious violations that pose an immediate risk to public health, such as the presence of hazardous contaminants in drinking water. Due to the urgent nature of these violations, it is crucial that the public is informed as quickly as possible to take necessary precautions.

The requirement for notification within 24 hours ensures that consumers are aware of potential dangers in their water supply and can take appropriate measures, such as boiling water or using alternative sources of water, to protect their health. This short notification window reflects the emphasis on rapid communication and action in response to significant threats to public safety in the context of drinking water quality decisions.