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Phil Metcalf

Technical Meeting on the Demonstration of Operational and Long Term Safety of Predisposal Management Facilities for Radioactive Waste – 5-9 Oct. 2015. Considerations in the safety case for the conceptualisation, siting, design, operation and decommissioning of RW management facilities.

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Phil Metcalf

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  1. Technical Meeting on the Demonstration of Operational and Long Term Safety of Predisposal Management Facilities for Radioactive Waste – 5-9 Oct. 2015 Considerations in the safety case for the conceptualisation, siting, design, operation and decommissioning of RW management facilities Phil Metcalf

  2. THE SAFETY CASE FOR PREDISPOSAL • Role of the safety case • Integrating relevant scientific (and other) information in a structured, traceable and transparent way, developing and demonstrating an understanding of the potential behavior and performance of the facilities • Demonstrating that consideration has been given to the subsequent steps of management and their compatibility. Both short medium and long term aspects should be considered and the possible need for future handling and treatment of the waste and the risks and doses that may be associated with these activities.

  3. THE SAFETY CASE FOR PREDISPOSAL • Role of the safety case (cont.) • Compatibility with a disposal option should be demonstrated, in the event that a disposal option has not been identified at that stage, assumptions should be made about the likely options and clearly set down. • Identifying uncertainties in the performance of the facilities, describing the possible significance of the uncertainties, and identifying approaches for the management of significant uncertainties

  4. THE SAFETY CASE FOR PREDISPOSAL • Role of the safety case (cont.) • Demonstrating operational safety and providing reasonable assurance that the facilities will perform in a manner that protects human health and the environment, and fulfil relevant criteria. • Aiding decision making on the authorization / licensing of the facilities. • Facilitating communication amongst stakeholders on issues relating to the facilities.

  5. Regulatory process • Establishment of standards, regulations, guidance • Evaluation of “safety case” • Determination of conditions for authorisation • Authorisation • Compliance assurance – routine reports, incident reports, inspection (routine, reactive, announced, unannounced) • Licence termination

  6. Regulatory Hold Points: Nuclear Installations

  7. Safety case evolution

  8. Concept

  9. Site

  10. Design

  11. Commissioning and operation

  12. Decommissioning and site release

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