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How long must results of tank tightness testing be retained?

  1. For a period of 3 years.

  2. For the life of the facility.

  3. Until the next tightness test is conducted.

  4. Until you are sure a release has not occurred.

The correct answer is: For a period of 3 years.

The correct course of action regarding the retention of tank tightness testing results is to maintain these records for a period of 3 years. This timeframe is established in regulations to ensure that there is a documented history of testing that can be reviewed for compliance and to monitor the condition of the tanks effectively. Retaining these records demonstrates due diligence in monitoring tank integrity and helps establish a pattern of maintenance and operational practices. While retaining data for the life of the facility or until a subsequent test is conducted might seem beneficial, these options do not align with regulatory requirements. Additionally, holding onto records until a release is deemed impossible does not provide a structured time frame and could lead to uncertainties in compliance. Therefore, adhering to the specified 3-year retention requirement ensures both accountability and compliance with industry standards.