When must the State be notified about changes to an existing facility?

Notifying the State before changes are made to an existing facility is essential for ensuring compliance with environmental regulations and maintaining public health and safety standards. This proactive approach allows regulatory agencies to assess the proposed changes for potential impacts on the environment and water quality before any alterations occur. It facilitates a thorough review process, ensuring that the facility remains compliant with state and federal regulations governing water systems.

In addition to adhering to regulatory frameworks, advance notification can help identify any permitting requirements necessary for proposed modifications. This process helps prevent unintended violations that could arise from changes made without proper oversight or analysis.

The other listed choices do not emphasize the importance of timely communication with regulatory bodies, which can lead to significant compliance issues if not adhered to. For instance, notifying the State after changes, or at any convenient time, does not allow for the necessary regulatory review before potential impacts occur. Similarly, notifying only before construction begins could overlook important operational changes that might require review. Thus, the requirement to notify the State before changes ensures that facilities operate safely and within the law while protecting environmental resources.