Besides following international principles and guidance (see Section 2.2 above), Switzerland’s waste management programme benefits from the experience gained from work for deep geological repositories abroad. Of particular interest are more advanced programmes that also work towards disposal in clay rock. France, for example, recently applied for the construction licence for a repository in Callovo-Oxfordian clay rock. Canada is currently investigating two siting regions and host rocks, one of which is an argillaceous limestone in southern Ontario and the other a crystalline batholith in northwestern Ontario. Finland and Sweden are the most advanced with respect to the implementation of deep geological repositories, which are hosted in crystalline rock. Relevant work relating to post-closure safety assessment carried out by these programmes is listed in Tab. 2‑1.
Tab. 2‑1:Some recent safety cases for deep geological disposal, their main objectives in terms of the project milestones they support and main aspects with relevance to the present safety case
|
Organisation, country |
Name Main objectives and main aspects of relevance |
Reference |
|---|---|---|
|
Andra, France |
DAC Preliminary safety report supporting the construction licence application (original title: Dossier d’autorisation de création de l’installation nucléaire de base (INB) CIGEO. Pièce 7: Version préliminaire du rapport de sûreté) Repository for high-level and long-lived waste in Callovo-Oxfordian clay host rock with a similar multi-barrier system |
|
|
Andra, France |
DOS-AF Summary of knowledge related to post-closure safety in view of finalising the pre-project for the construction licence application (original title: Dossier d’option de sûreté. Partie après fermeture) Repository for high-level and long-lived waste in Callovo-Oxfordian clay host rock with a similar multi-barrier system |
(Andra 2006) |
|
NWMO, Canada |
TR-2023-08 Confidence in Safety – South Bruce Site Demonstrating suitability of the site to host a repository for spent fuel Repository for high-level waste in argillaceous (shaley) limestone with a partially similar multi-barrier system |
|
|
Posiva, Finland |
SC-OLA Safety case for the operating licence application Safety concept and design development process with link to requirements with a partially similar multi-barrier system |
|
|
SKB, Sweden |
TR-21-01, PSAR Post-closure safety for the final repository for spent nuclear fuel at Forsmark Support for the construction licence application Safety concept and design development process with link to requirements, with a partially similar multi-barrier system |
|
|
SKB, Sweden |
TR-23-01, PSAR Post-closure safety for SFR, the final repository for short-lived radioactive waste at Forsmark Support for the application for an extension of the repository Safety concept and design development process with link to requirements, with a partially similar multi-barrier system |