Abstracts ASN Report 2019

ÁR0 !0 I…zÁ0z ç ٳ Èæ …«ٳ ³0³ ³XÁ0 !ȸƺƏɎƺƳ ǣȇ ׏ ژהגח Əɀ Ɏǝƺ !0 ټ ɀ ǔǣȸɀɎ ȸƺɀƺƏȸƬǝ ƬƺȇɎȸƺً Ɏǝƺ Fontenay-aux-Roses site is continuing its transition from nuclear activities towards research activities in living sciences. The Fontenay-aux-Roses centre comprises two BNIs, ȇƏȅƺǼɵ ¨ȸȒƬƻƳƻ ٢ zX ژ ׏ דה ٣ ƏȇƳ ³ɖȵȵȒȸɎ ٢ zX ژ ׏ הה ٣ِ zX ژ ׏ דה accommodated the research and development activities on nuclear fuel reprocessing, transuranium elements, radioactive waste and the examination of irradiated fuels. Áǝƺɀƺ ƏƬɎǣɮǣɎǣƺɀ ɯƺȸƺ ɀɎȒȵȵƺƳ ǣȇ Ɏǝƺ ׏ זח ׎ɀ ٮ ׏ חח ׎ɀِ zX ژ ׏ ژהה ǣɀ a facility for the characterisation, treatment, reconditioning and storage of legacy radioactive waste and waste from the ƳƺƬȒȅȅǣɀɀǣȒȇǣȇǕ Ȓǔ zX ژ ׏ דה ِ Broadly speaking, the CEA’s decommissioning and waste management strategy has been examined by ASN, which stated its position on the so-defined priorities in xƏɵ אژ ׎׏ ژח ٢ɀƺƺ zȒɎƏƫǼƺ ƺɮƺȇɎɀ ǣȇ Ɏǝƺ ǣȇɎȸȒƳɖƬɎǣȒȇ ɎȒ Ɏǝǣɀ report and chapter 13). ¨ȸȒƬƻƳƻ ǔƏƬǣǼǣɎɵ ƏȇƳ ³ɖȵȵȒȸɎ ǔƏƬǣǼǣɎɵ – CEA Centre Decommissioning of these two facilities, Procédé and ³ɖȵȵȒȸɎً ɯǝǣƬǝ ƬȒȇɀɎǣɎɖɎƺ zX ژ ׏ ژדה ƏȇƳ zX ژ ׏ ژהה ȸƺɀȵƺƬɎǣɮƺǼɵً ɯƏɀ ƏɖɎǝȒȸǣɀƺƳ ƫɵ ɎɯȒ (ƺƬȸƺƺɀ Ȓǔ ב ׎ ژ hɖȇƺ א ׎׎ ה ِ Áǝƺ ǣȇǣɎǣƏǼ planned duration of the decommissioning operations was about ten years. The CEA informed ASN that, due to strong presumptions of radioactive contamination beneath one of the buildings, to unforeseen difficulties and to a change in the overall decommissioning strategy of the CEA’s civil centres, the decommissioning operations would extend beyond א ׎ ב ׎ ژ ƏȇƳ ɎǝƏɎ Ɏǝƺ ƳƺƬȒȅȅǣɀɀǣȒȇǣȇǕ ȵǼƏȇ ɯȒɖǼƳ ƫƺ ȅȒƳǣǔǣƺƳِ In June 2015, the CEA submitted an application to modify the prescribed deadlines for these decommissioning operations. ASN deemed that the first versions of these decommissioning decree modification application files were not admissible. In accordance with the commitments made in 2017, the CEA ɀɖƫȅǣɎɎƺƳ Ɏǝƺ ȸƺɮǣɀƺƳ ɮƺȸɀǣȒȇɀ Ȓǔ Ɏǝƺɀƺ ǔǣǼƺɀ ǣȇ א ׎׏ ז ِ ژ Áǝƺ complementary studies announced in the files were submitted in the first quarter 2019. In its examination of the periodic safety review reports ȸƺƬƺǣɮƺƳ ǣȇ א ׎׏ ژו ƏȇƳ א ׎׏ ז ً ³z ǣƳƺȇɎǣǔǣƺƳ ɎǝƏɎ Ɏǝƺ !0 ǝƏƳ to provide complementary information on the state of the soils, the decommissioning plan and the safety analysis report, particularly concerning the demonstration of control of the fire risks and seismic risks. ɀɀƺɀɀȅƺȇɎ Ȓǔ Ɏǝƺ !0 IȒȇɎƺȇƏɵ ٮ Əɖɴ «ٮ Ȓɀƺɀ ɀǣɎƺ On the basis of the inspections carried out in 2019, ASN finds that the monitoring of outside contractors is properly ensured on the CEA Fontenay-aux-Roses site and that the majority of the commitments and actions defined further to the inspections and significant events of the preceding years have been carried out. However, there are weaknesses in the organisation and technical provisions for radiation protection within the BNIs of the Fontenay-aux-Roses site. ASN will monitor Ɏǝƺ ژ ƳƺȵǼȒɵȅƺȇɎ Ȓǔ Ɏǝƺ !0 ټ ɀ ƏƬɎǣȒȇ ȵǼƏȇ ɎȒ ȸƺȅƺƳɵ Ɏǝƺ ژ ȒƫɀƺȸɮƺƳ ƳƺɮǣƏɎǣȒȇɀِ IɖȸɎǝƺȸȅȒȸƺً ɯǣɎǝ ȸƺǕƏȸƳ ɎȒ ژ Ɏǝƺ ژ ǔǣȸƺ ȸǣɀǸً ǣȅȵȸȒɮƺȅƺȇɎɀ Əȸƺ ȸƺȷɖǣȸƺƳ ǣȇ Ɏǝƺ ƬȒȇɎȸȒǼ ƏȇƳ ژ ȅȒȇǣɎȒȸǣȇǕ Ȓǔ Ɏǝƺ ǔǣȸƺ ǼȒƏƳɀِ Several significant events that occurred in 2019 highlighted problems of equipment ageing, in particular the malfunctioning of certain alarms that play a role in monitoring and maintaining the safety of the facilities. In 2019, as in 2018, ASN observed slippages in the performance of the studies, in project scheduling and in the decommissioning operations schedule. ASN underlines in particular the delay in the projects for new equipment necessary for the decommissioning of the Fontenay-aux- Roses nuclear facilities. What ASN expects of the CEA is the implementation of decisive measures in 2020 to meet the deadlines for these various projects, especially those contributing to the reduction of the potential source term in the old facilities, which constitute priorities for safety. ASN Report on the state of nuclear safety and radiation protection in France in 2019 67 REGIONAL OVERVIEWOF NUCLEAR SAFETY AND RADIATION PROTECTION \n0 (ٳ 0 ٳ I« z!0