- 308 - Licensee's accident management organisation With regard to the JHR, Masurca and the ATPu (CEA Cadarache), the CSA reports give no details on the specific organisation of the emergency management unit that would be implemented within the stricken facility. For Phénix (CEA Marcoule) and Osiris (CEA Saclay), these emergency management units are called the Facility Command Post (PCI) and the Local Command Post (PCL) respectively. ASN considers that coordination between these emergency management units is vital for the collection and transmission of the information necessary to assess the condition of the facility. ASN will therefore issue demands to address coordination between the emergency management units (description of existing organisation, presentation of the necessary improvements) in the future reports from the CEA Cadarache, Marcoule and Saclay centres. As regards CEA Marcoule, at present it is planned that in the event of an accident, the centre will provide assistance to the nuclear licensees Mélox and Socodei by making available for example its emergency management rooms, its local security organisation (FLS) and its Radiological Protection Service (SPR). ASN considers that the CSA report for the CEA centres must include an assessment of their capacity to support the neighbouring licensees in hazard situations - as defined in the CSA specifications - and affecting all or part of the site facilities simultaneously as defined in the CSA specifications. ASN will require all the licensees to reinforce coordination between licensees on a given site. Possibility of using existing equipment in the event of a severe accident The CSA reports draw up an inventory of the general resources available in each centre (emergency management rooms, communication means, mobile intervention means, emergency power supplies, etc.). The CEA points out that their availability and functionality in the event of a severe accident will be assessed for the reports due in 2012. With regard to the inventory of means specific to a given facility, this has only been drawn up for Osiris and Phénix. The CSA report for Phénix is the only one that provides an assessment of the availability and robustness of the facility's own means for the extreme situations envisaged. Osiris If the control room is unavailable, the facility has a fall-back centre that must communicate with the technical team at the Strategic Management Command Post (PCD). However, the report does not indicate the dedicated communication means in the fall-back centre. Furthermore, the Osiris facility has a specific electrical power supply whose availability and autonomy have not been assessed. Phénix The CEA's report provides information on the robustness of the premises used by the local emergency management organisation with respect to some of the hazards considered in the CSA, particularly the earthquake hazard. The notable point at the Phénix facility level concerns the fall-back room that would be used if the facility was unavailable. The fall-back room, which provides data on the reactor condition, is situated in premises protected from radiation by 50-cm thick concrete walls, but which would be flooded by the process waters in the event of an earthquake. ATPu and Masurca As the ATPu would not withstand an earthquake of MHPE (maximum historically probable earthquake) intensity (in the sense of RFS 2001-01), this would result in "a loss of containment and dissemination of radioactive substances in the environment [ ], leading to potential pollution of the water table around the facility". Furthermore, the accessibility of the site after an earthquake is not proven, given that the main entrance gate and the security gates would be automatically blocked. In addition to this, the updated inventory of the materials remaining in the ATPu does not detail their distribution per building, therefore the risks relating to the degradation of one or more buildings in the event of an emergency situation cannot be precisely assessed. ASN considers that the CEA must ensure that the inventory of radioactive materials per building is known at all times in order to facilitate emergency management. ASN may issue a requirement in regarding this point.
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