Abstracts ASN Report 2019

RǣǕǝ ٮ ƏƬɎǣɮǣɎɵ ǼƏƫȒȸƏɎȒȸɵ n0! ٮ ³Á « – CEA Centre Áǝƺ ƬɎǣɮƺ IɖƺǼ 0ɴƏȅǣȇƏɎǣȒȇ nƏƫȒȸƏɎȒȸɵ ٢n0! ٮ zX דדژ ٣ and the Treatment, Clean-out and Reconditioning Station (STAR) –an extension of LECA, constitute expert assessment tools used by the CEA for the analysis of spent fuels. Commissioned in 1964, the LECA laboratory enables the CEA to carry out destructive and non-destructive examinations of spent fuel from the nuclear power, research and naval propulsion sectors. As the facility is old, it was partially reinforced in the early 2010’s to ensure its earthquake resistance. Commissioned in 1999, the STAR facility is an extension of the LECA laboratory, designed for the stabilisation and reconditioning of spent fuel. The CEA gave ASN the periodic safety review reports for the n0! ǔƏƬǣǼǣɎɵ ǣȇ hɖȇƺ א ׎׏ ژג ƏȇƳ ǔȒȸ ³Á « ǣȇ IƺƫȸɖƏȸɵ א ׎׏ ז ِ áǣɎǝ regard to the LECA facility, ASN submitted a draft resolution on continued operation for consultation by the public and the licensee at the end of 2019, which makes continued operation conditional on conducting work to improve control of the risks associated with earthquakes, fire, lightning and flooding, while at the same time limiting the potential source term of the facility in an accident situation. Furthermore, as the LECA’s resistance to the “safe shutdown earthquake” potential is not guaranteed today, the CEA ȵȸȒȵȒɀƺƳ Ə ɀɎȸƏɎƺǕɵ ɎȒ ³z ǣȇ א ׎׏ ژח ɎȒ ƺȇɀɖȸƺ Ɏǝƺ ƳɖȸƏƫǣǼǣɎɵ of this facility. ASN is currently examining this strategy. ASN considers that the level of nuclear safety and radiation ȵȸȒɎƺƬɎǣȒȇ Ȓǔ zX ژדדژ ǣȇ א ׎׏ ژח ǣɀ Ȓȇ Ɏǝƺ ɯǝȒǼƺ ɀƏɎǣɀǔƏƬɎȒȸɵِ ³z nevertheless remains vigilant with regard to the consideration of social, organisational and human factors in the operation of the facility. ³ȒǼǣƳ ȸƏƳǣȒƏƬɎǣɮƺ ɯƏɀɎƺ ɀɎȒȸƏǕƺ ƏȸƺƏ – CEA Centre zX הדژ ً ƳƺƬǼƏȸƺƳ ǣȇ hƏȇɖƏȸɵ ׏ ژזהח ǔȒȸ Ɏǝƺ ƳǣɀȵȒɀƏǼ Ȓǔ ɯƏɀɎƺً is used for storing legacy solid radioactive waste from the !ƏƳƏȸƏƬǝƺ ƬƺȇɎȸƺِ XɎ ƬȒȅȵȸǣɀƺɀ ژב ȵȒȒǼɀً ژה ȵǣɎɀً ژד ɎȸƺȇƬǝƺɀ ƏȇƳ hangars, which contain in particular intermediate-level long- lived waste (ILW-LL) from the operation or decommissioning of CEA installations. Major legacy waste retrieval and packaging work continued in 2019, including the finalisation of the operations to retrieve low- ǼƺɮƺǼ ɯƏɀɎƺ ٢nná٣ ǔȸȒȅ Ɏǝƺ ƬƺǼǼɀ Ȓǔ Ɏǝƺ I ژב ȵǣɎ ƏȇƳȅƺƏɀɖȸƺȅƺȇɎ Ȓǔ Ɏǝƺ Ƴȸɖȅɀ Ȓǔ ƫɖǼǸ ɯƏɀɎƺ ǣȇ Ɏǝƺ R ژג ǝƏȇǕƏȸِ ³z ƏǼɀȒ continued examining the facility decommissioning file which was submitted in 2018, and asked the CEA for substantial amounts of additional information. ASN considers that the level of nuclear safety and radiation ȵȸȒɎƺƬɎǣȒȇ Ȓǔ zX ژהדژ ǝƏɀ ȵȸȒǕȸƺɀɀƺƳ ȅƏȸǸƺƳǼɵ Ȓɮƺȸ Ɏǝƺ ǼƏɀɎ few years and has reached a satisfactory level. With regard to environmental protection, given the operating background and the radiological contamination of certain zones of the facility, ASN has asked the CEA to produce an action plan to ensure compliance with the stormwater management procedures in order to prevent the facility from causing any off-site pollution. In 2019, the CEA started taking steps to improve its stormwater management system, but further measures are still required. IɖȸɎǝƺȸȅȒȸƺً zX ژהדژ ǣɀ Ȓȇƺ Ȓǔ Ɏǝƺ ȵȸǣȒȸǣɎǣƺɀ ǣƳƺȇɎǣǔǣƺƳ ƫɵ Ɏǝƺ CEA in its new decommissioning and waste management strategy (see chapter 13). ASN will therefore be attentive to the progress of the actions aiming to reduce as far as possible the risks and adverse effects that the facility presents for the environment. ¨ǝƻƫɖɀ ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ – CEA Centre Áǝƺ ¨ǝƻƫɖɀ ȸƺƏƬɎȒȸ ٢ zX אחژ ٣ ǣɀ Ə ȵȒȒǼ ƺɴȵƺȸǣȅƺȇɎƏǼ ȸƺƏƬɎȒȸ ɯǣɎǝ Ə ȵȒɯƺȸ ȸƏɎǣȇǕ Ȓǔ ژזב ȅƺǕƏɯƏɎɎ ɎǝƺȸȅƏǼ ٢xáɎǝ٣ ٢ȅƺǕƏɯƏɎɎ ɎǝƺȸȅƏǼ٣ ɯǝǣƬǝ ǔɖȇƬɎǣȒȇƺƳ ǔȸȒȅ ׏ ژזוח ɎȒ א ׎׎ ו ِ Phébus was designed for the study of serious accidents affecting light water reactors and for defining operating procedures to prevent core melt-down or to mitigate its consequences. The licensee submitted its decommissioning file to ASN in February 2018, and it is currently being examined, jointly with its periodic safety review report submitted in 2017. Removal of the spent fuel from the reactor, which was one of the priorities of the decommissioning preparation operations, was completed in January 2019. ASN considers that the nuclear safety and radiation protection Ȓǔ Ɏǝƺ ¨ǝƻƫɖɀ ǣȇɀɎƏǼǼƏɎǣȒȇ ǔȒȸ א ׎׏ ژח ǣɀ Ȓȇ Ɏǝƺ ɯǝȒǼƺ ɀƏɎǣɀǔƏƬɎȒȸɵِ It notes an improvement in the monitoring of outside contractors. nƏƫȒȸƏɎȒȸɵ ǔȒȸ ȸƺɀƺƏȸƬǝ ƏȇƳ ƺɴȵƺȸǣȅƺȇɎƏǼ ǔƏƫȸǣƬƏɎǣȒȇ Ȓǔ ƏƳɮƏȇƬƺƳ ȇɖƬǼƺƏȸ ǔɖƺǼɀ ٢nƺǔƬƏ٣ – CEA Centre !ȒȅȅǣɀɀǣȒȇƺƳ ǣȇ ׏ בזח ً Ɏǝƺ nƺǔƬƏ ٢ zX ژ ׏ בא ٣ ɯƏɀ Ə ǼƏƫȒȸƏɎȒȸɵ designed for conducting studies on plutonium, uranium, actinides and their compounds, which carried out studies aimed at understanding the behaviour of these materials in the reactor and in the various stages of the fuel cycle. Xȇ אژ ׎׏ ז ً Ɏǝƺ nƺǔƬƏ ǔǣȇƏǼǣɀƺƳ Ɏǝƺ ɎȸƏȇɀǔƺȸ Ȓǔ ȵƏȸɎ Ȓǔ ǣɎɀ ȸƺɀƺƏȸƬǝ and development equipment to the Atalante laboratories ٢ zX ژ ׏ זג ٣ Ȓǔ xƏȸƬȒɖǼƺِ The CEA sent the final shutdown declaration for the facility ǣȇ ȵȸǣǼ א ׎׏ ژח ƏȇƳ ɀɖƫȅǣɀɀǣȒȇ Ȓǔ ǣɎɀ ƳƺƬȒȅȅǣɀɀǣȒȇǣȇǕ ǔǣǼƺ ǣɀ planned for 2021. The electrical renovation work planned for after the last periodic safety review of the facility, further to which technical requirements were issued by ASN in resolution CODEP- !nJ אٮ ׎׏ ٮז ׎ בגב ׎׏ ژ Ȓǔ ژד hɖǼɵ א ׎׏ ژז ǕȒɮƺȸȇǣȇǕ Ɏǝƺ ƬȒȇɎǣȇɖƺƳ operation of the facility, was carried out in 2019. ASN considers that the level of nuclear safety and radiation protection of the facility is relatively satisfactory. Improvements are required in the monitoring of outside contractors and control of the fire risk. ASN Report on the state of nuclear safety and radiation protection in France in 2019 91 REGIONAL OVERVIEWOF NUCLEAR SAFETY AND RADIATION PROTECTION ¨«…à0z!0 n¨0³ !ٳ ˆÁ0 ( ټ ñÈ«