What is the timeframe within which state regulations require notification for an unanticipated bypass/SSO?

The timeframe within which state regulations require notification for an unanticipated bypass or Sanitary Sewer Overflow (SSO) is typically established to ensure rapid communication and response to potential environmental hazards. In many states, including Missouri, the requirement is set to 72 hours after the occurrence of the bypass or SSO. This timeframe is crucial because it allows regulatory agencies, affected parties, and the public to be informed about possible public health risks and environmental impacts. Prompt notification can facilitate timely mitigation efforts and response actions to minimize adverse effects on water quality and public safety.