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4.6.1 Development and implementation of a remediation plan

When the organization (or organizations) responsible for implementing the remedial measures is (are) specified, it (they) should prepare a remediation plan. A remediation plan showing that remediation can be accomplished safely should be prepared for each contaminated area, unless otherwise required by the regulatory body. The remediation plan should be subject to the approval of the regulatory body prior to its implementation. The approved plan should state, as a minimum: the goal for the remediation; reference levels for remediation; the nature, scale and duration of the remedial measures to be implemented; the waste disposal or storage site, as appropriate; any post-remediation restrictions; and the monitoring and surveillance programmes and arrangements for institutional control for the remediation area.

Before the formal termination of the remediation programme and the release from further responsibilities of the organization responsible for implementing the remedial measures, compliance with criteria should be verified and the termination should be subject to the approval of the regulatory body.

In the event that the approved goals have not been met, further assessment should be performed and decisions should be taken on whether further remedial measures or additional restrictions are required. If either the remediation fails to meet the termination criteria, or the extent or complexity of the contamination is greater than was originally determined, the implementing organization should assess the new situation. An optimization should be performed by the responsible organization to determine a new course of action, which may include placing reliance upon restricting access to the affected area. Any such modification to the remedial measures should be subject to the approval of the regulatory body [IAEA-2003].