For how long should corrective action and public notice records be maintained?

Corrective action and public notice records should be maintained for a minimum of three years. This duration is important because it allows water systems to demonstrate compliance with regulations and to provide documentation that can be used in the event of future assessments or investigations. Maintaining these records helps ensure accountability and transparency in the management of drinking water quality. Additionally, retaining records for three years aligns with various federal and state regulations that govern water quality management, ensuring that water systems can provide historical data if needed, such as during inspections or evaluations of compliance. This three-year retention period is a best practice that supports the overall integrity and safety of public drinking water systems.