ASN Report 2017

168 ASN report on the state of nuclear safety and radiation protection in France in 2017 Chapter 05  - Radiological emergency and post-accident situations This more particularly stipulates that: ཛྷ ཛྷ at the national level, ASN advises the ASND on aspects concerning the impact of releases on the environment and on preparation for post-accident management of the emergency; ཛྷ ཛྷ at the local level, a representative of the ASN regional division concerned goes to the office of the Prefect to advise the Prefect pending the arrival of the ASND representative. The experience acquired during these many exercises enables ASN personnel to respond more effectively in real emergency situations. 3.2 Assessing with a view to improvement Evaluation meetings are organised immediately after each exercise in each emergency centre and at ASN a few weeks after the exercise. ASN, along with the other players, endeavours to identify best practices and the areas for improvement brought to light during these exercises. These assessment meetings enable the players to share their experience through a participative approach. They more specifically revealed: ཛྷ ཛྷ the importance of having scenarios that were as realistic as possible, in real meteorological conditions and that were technically complex enough to be able to provide useful experience feedback; ཛྷ ཛྷ the importance of communication in an emergency situation, in particular to inform the public and foreign authorities as rapidly as possible and avoid the spread of rumours liable to hamper good emergency management, in France and in other countries; ཛྷ ཛྷ the importance of providing the decision-makers with a clear view of the radiological impacts in the form of maps: the tool called Criter developed by IRSN gives a representation of the results of environmental radioactivity measurements. In 2017, ASN also brought all the players together to review best practices to improve the response organisation as a whole. In the light of the lessons learned from the emergency exercises and actual emergency situations, ASN decided to study the possibility of adapting the activation of its emergency organisation to the situation actually encountered and the information sharing procedures. In addition, in order to improve the emergency organisation activation time, ASN will define criteria for triggering of the general alert by ASN when it becomes aware of an emergency situation and the licensee of the site concerned is late in triggering the alert. 4. Outlook In accordance with the nuclear emergency duties entrusted to it by the Environment Code, ASNmakes an active contribution to the review process currently being carried out by the public authorities following the Fukushima Daiichi accident, with the aim of improving the national radiological emergency organisation. ASN thus participates in the work to implement the major nuclear or radiological accident national response plan and in particular calls on the assistance of the Ministry of the Interior and the offices of the Prefects following the publication of the regional implementation guide. This regional implementation will continue to be tested in 2018 during exercises, in particular in those départements in which there is no BNI. Following the Government’s September 2016 adoption of the principle of extending the radius of the PPI perimeter around NPPs from 10 to 20 km, the preparation of immediate evacuation out to 5 km and the pre-distribution of stable iodine tablets out to 20 km, ASN will in 2018 contribute NUCLEAR SITE DATE OF THE EXERCISE MAIN CHARACTERISTICS Flamanville NPP 14th March Decision-making process Nuclear or radiological (Lyon) 18th May Interfaces between office of Prefect and national stakeholders Transport of radioactive substances (Pas-de-Calais) 23th May Management of a nuclear emergency by a département without BNI, media pressure, interfaces between office of Prefect and national stakeholders Regional zone exercise (South-East) 6th June Management of a nuclear emergency by a defence zone, interfaces between the zone Prefect’s office, the départements and national stakeholders Cattenom NPP 17th October Decision-making process, media pressure Cadarache site - RES 14th November Interfacing with ASND, Support with radiation protection and post-accident aspects Saint-Alban/Saint-Maurice nuclear power plant 28th November Decision-making process Dampierre-en-Burly NPP 5th December Decision-making process, media pressure Ile Longue naval base 12th December Interfacing with ASND, Support with radiation protection and post-accident aspects TABLE 2: National civil nuclear and radiological emergency exercises conducted in 2017