Andra's strategy and approach for long-term memory preservation of a deep geological repository - 15174

Andra's approach for memory preservation on the long term is based first on a reference solution, which has been developed and implemented for the Manche disposal facility, the 'Centre de la Manche' (CSM). The reference solution is based on three sets of documents ('passive memory' provisions) and on activities involving the public, the local stakeholders and/or experts ('active memory' provisions). The reference solution is perennial for 6 to 10 centuries. Andra has decided to set a target of keeping the memory of the disposal facility for as long as possible. So, a research program to develop memory provisions for several millennia was launched in 2010. The most important and most promising studies come from scientific realms such as linguistics and semiotics, geology and archaeology, and feedback from surveys on transmission medium and preservation. Other studies are available in different areas, where social sciences and humanities play a prominent role. (authors)