Safety of civil basic nuclear installations other than reactors of the French nuclear fleet. Lessons learned by the IRSN and significant events declared in 2013 and 2014

Published every two years, this report concerns installations related to fuel nuclear cycle, research laboratories and reactors, installations for waste processing, warehousing or storage of nuclear wastes, as well as installations which have been definitely stopped or are being remediated or dismantled. After a global and synthetic overview of these issues (highlights, lessons learned from significant events, evolution of the number of events, lessons learned from safety-re-examinations), the report first presents the legal and regulatory context, the 82 concerned installations, and aspects related to their safety. The second part proposes an analysis of significant events which occurred in 2013 and 2014: aspects related to event declaration, assessment of events and main noticed trends with respect to previous years, transverse analysis of the main types of events and evolutions with respect to previous years. The third part reports some important events which occurred in the Fontenay-aux-Roses CEA centre, in the Atalante installation, on the Tricastin site, and in the UP3-A plant of Areva NC establishment in La Hague. Some transverse topics are then addressed, i.e. safety re-examinations of various installations (the UP3-A plant in La Hague, the MELOX plant, the CEA Cadarache solid waste processing station, and the Phenix power plant)