Abstracts ASN Report 2019

ASN considers that the level of nuclear safety and radiation protection of the Cabri reactor is satisfactory. «ƏȵɀȒƳǣƺ ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ – CEA Centre Áǝƺ «ƏȵɀȒƳǣƺ ȸƺƏƬɎȒȸ ٢ zX דאژ ٣ ǣɀ Ɏǝƺ ǔǣȸɀɎ ɀȒƳǣɖȅ ٮ ƬȒȒǼƺƳ ǔƏɀɎ ȇƺɖɎȸȒȇ ȸƺƏƬɎȒȸ ƫɖǣǼɎ ǣȇ IȸƏȇƬƺِ XɎ ȒȵƺȸƏɎƺƳ ǔȸȒȅ ׏ ژוהח ɎȒ 1978. A sealing defect in the reactor pressure vessel led to its final shutdown in 1983. Decommissioning operations were subsequently undertaken, but have been partially stopped ǔɖȸɎǝƺȸ ɎȒ Ə ǔƏɎƏǼ ƏƬƬǣƳƺȇɎ ǣȇ ׏ ژגחח ƳɖȸǣȇǕ Ɏǝƺ ɯƏɀǝǣȇǕ Ȓǔ Ə sodium tank. At present the core has been unloaded, the fuel evacuated from the installation, the fluids and radioactive components have been removed and the reactor vessel is contained. The reactor pool has been emptied, partially cleaned out and decommissioned and the waste containing sodium has been removed. 0ɴƏȅǣȇƏɎǣȒȇ Ȓǔ Ɏǝƺ ƳƺƬȒȅȅǣɀɀǣȒȇǣȇǕ ǔǣǼƺ Ȓǔ zX דאژ ً ɀɖƫȅǣɎɎƺƳ ƫɵ Ɏǝƺ ǼǣƬƺȇɀƺƺ ƏɎ Ɏǝƺ ƺȇƳ Ȓǔ א ׎׏ ژג ƏȇƳ ɀɖȵȵǼƺȅƺȇɎƺƳ ǣȇ א ׎׏ ה ً is in progress. The licensee is continuing the clean-out and decommissioning preparation work in parallel. ASN considers that the level of safety of Rapsodie in 2019, particularly concerning waste management, is on the whole satisfactory. The licensee must nevertheless improve the monitoring of outside contractors and of the fire loads present in the facility. ³ȒǼǣƳ áƏɀɎƺ ÁȸƺƏɎȅƺȇɎ ³ɎƏɎǣȒȇ – CEA Centre zX ژובژ Ȓǔ !0 !ƏƳƏȸƏƬǝƺ ǝǣɀɎȒȸǣƬƏǼǼɵ ƬȒȅȵȸǣɀƺƳ Ɏǝƺ 0ǔǔǼɖƺȇɎ Treatment Station (STE) and the Waste Treatment Station (STD), grouped into a single installation. As the CEA wishes to ensure continued operation of the STD and proceed with Ɏǝƺ ǔǣȇƏǼ ɀǝɖɎƳȒɯȇ Ȓǔ Ɏǝƺ ³Á0ً zX ژובژ ɯƏɀ ƳǣɮǣƳƺƳ ǣȇɎȒ ɎɯȒ BNIs: 37-A (STD) and 37-B (STE) by ASN resolutions CODEP- אٮ!«( ׎׏ ٮד ׎ ژאבאוא ƏȇƳ !…(0¨ אٮ!«(ٮ ׎׏ ٮד ׎ ژדאאוא Ȓǔ ח hɖǼɵ אژ ׎׏ ד ِ Áǝƺɀƺ ȸƺƬȒȸƳɀ ɯƺȸƺ ȅƏƳƺ ǔɖȸɎǝƺȸ ɎȒ Ɏǝƺ…ȸƳƺȸɀ Ȓǔ ژח hɖȇƺ א ׎׏ ד defining the perimeters of these two BNIs. Ɏ ȵȸƺɀƺȇɎً Ɏǝƺ ³Á( ǣɀ Ɏǝƺ !0 ټ ɀ ȒȇǼɵ ƬǣɮǣǼ zX ژ ǼǣƬƺȇɀƺƳ ǔȒȸ the packaging of ILW-LL (intermediate-level, long-lived) radioactive waste before it is stored in the Cedra facility ٢ zX ژ ׏ גה ٣ ȵƺȇƳǣȇǕ ɎȸƏȇɀǔƺȸ ɎȒ Ə Ƴƺƺȵ ǕƺȒǼȒǕǣƬƏǼ ȸƺȵȒɀǣɎȒȸɵِ This situation makes the STD an indispensable part of the CEA’s decommissioning and waste management strategy. The continued operation and long-term durability of the STD necessitates renovation work which was prescribed in 2016, at the end of its second periodic safety review, by ³z !ǝƏǣȸȅƏȇ ټ ɀ ȸƺɀȒǼɖɎǣȒȇ !…(0¨ !ٮ nJ אٮ ׎׏ ٮה ׎׏ ژההזד Ȓǔ ׏ ژז ȵȸǣǼ אژ ׎׏ ה ِ Xȇ Ɏǝƺ ȅƺƏȇɎǣȅƺً ƬȒȅȵƺȇɀƏɎȒȸɵ ȅƺƏɀɖȸƺɀ concerning more specifically the limiting of the quantities of radioactive substances in the facility and fire protection, are applied. Following an event involving the falling of a package of ȅȒƳƺȸƏɎƺǼɵ ǣȸȸƏƳǣƏɎǣȇǕ ɯƏɀɎƺ ǣȇ Ɏǝƺ ǔƏƬǣǼǣɎɵ Ȓȇ …ژדא ƬɎȒƫƺȸ אژ ׎׏ ו ً which was not reported to ASN until July 2018 and led to an inspection, ASN gave the CEA formal notice through ȸƺɀȒǼɖɎǣȒȇ !…(0¨ ٮ x«³ אٮ ׎׏ ٮח ׎׏׏ אה ׏ ژ Ȓǔ ׏ ژח xƏȸƬǝ א ׎׏ ח ً ɎȒ ƬȒȅȵǼɵ ɯǣɎǝ Ɏǝƺ ȵȸȒɮǣɀǣȒȇɀ Ȓǔ ȸɎǣƬǼƺɀ א ِ ג ِ׏ ژ ƏȇƳ א ِ ד ِ׏ ژ ɎȒ א ِ ד ِ ב Ȓǔ Ɏǝƺ…ȸƳƺȸ Ȓǔ ژו IƺƫȸɖƏȸɵ א ׎׏ ژא ȸƺɀȵƺƬɎǣɮƺǼɵ ɯǣɎǝ ȸƺǕƏȸƳ ɎȒ the preparation of operating experience feedback and the identification of activities important to protection for the ȒȵƺȸƏɎǣȒȇ Ȓǔ zX ٮובژ ِ ³z ƏǼɀȒ ȸƺȷɖǣȸƺƳ Ɏǝƺ !0 ً ɎǝȸȒɖǕǝ ȸƺɀȒǼɖɎǣȒȇ !…(0¨ ٮ x«³ אٮ ׎׏ ٮח ׎ הא ׎ ב ׏ ژ Ȓǔ ژבא hɖǼɵ א ׎׏ ח ً ɎȒ ɀɖƫȅǣɎ to it: • a review of the conditions of retrieval of the damaged package jammed in the well bottom; • the guarantee that no damaged packages can have been stored in the Cedra facility; • a regular report on the processes for detecting, examining and addressing all safety deviations in the facility and, where applicable, reporting them to ASN; • a verification of compliance with the regulations concerning Ɏǝƺ ɖɀƺ Ȓǔ ɀɖƫƬȒȇɎȸƏƬɎǣȇǕ ǣȇ zX ٮובژ ٕ • an analysis of the root causes of this event, particularly regarding social, organisational and human factors; • a third-party analysis of its organisation concerning the information and decision-making processes related to safety. ³z ƬȒȇƳɖƬɎƺƳ Əȇ ǣȇɀȵƺƬɎǣȒȇ Ȓȇ ژהא zȒɮƺȅƫƺȸ א ׎׏ ژח ɎȒ ɮƺȸǣǔɵ compliance with these requirements. ASN concluded that the CEA had taken proper account of the requirements of the compliance notice, subject to the provision of additional information concerning experience feedback on the use of a suction-cup pick-up system, which will be examined in 2020. The CEA’s action plan for improvement with regard to safety culture and operating rigour is found on the whole to be satisfactory. ASN expects a strong commitment from the CEA to take into account all the requirements of its resolutions, and the improvement actions stemming from its action ȵǼƏȇً ǣȇ ȒȸƳƺȸ ɎȒ ǣȅȵȸȒɮƺ Ɏǝƺ ǼƺɮƺǼ Ȓǔ ɀƏǔƺɎɵ Ȓǔ zX ٮובژ ƏȇƳ the organisational processes at the CEA, in the short-term and lastingly, in order to ensure the rigour necessary for the operation of this type of BNI, which is pivotal to the CEA’s decommissioning and waste management strategy. ASN also continued the examination of the facility modification request submitted by the CEA with a view to improving the facility’s resistance to external hazards. This ongoing examination has required ASN to make several additional information requests, more specif ically to check the earthquake resistance of the renovated facility. ƬɎǣɮƺ 0ǔˢɖƺȇɎɀ ÁȸƺƏɎȅƺȇɎ ³ɎƏɎǣȒȇ – CEA Centre Áǝƺ ³Á0 ٢ zX ٮובژ ٣ ǝƏɀ ƫƺƺȇ ɀǝɖɎ ƳȒɯȇ ɀǣȇƬƺ ׏ ژ hƏȇɖƏȸɵ אژ ׎׏ ג ِ The CEA has requested the modification of a prescription in order to push back the deadline for submission of the decommissioning file for this facility, in view in of the complexity of the facility and the time required to characterise the soils and equipment before starting decommissioning. ASN is currently examining this postponement request. ³z ƬȒȇɀǣƳƺȸɀ ɎǝƏɎ Ɏǝƺ ǼƺɮƺǼ Ȓǔ ɀƏǔƺɎɵ Ȓǔ zX ٮובژ ǣȇ א ׎׏ ژח ǣɀ on the whole satisfactory. With regard to environmental protection, the results of the soil characterisation carried out for the preparation of the facility decommissioning file and ASN Report on the state of nuclear safety and radiation protection in France in 2019 89 REGIONAL OVERVIEWOF NUCLEAR SAFETY AND RADIATION PROTECTION ¨«…à0z!0 n¨0³ !ٳ ˆÁ0 ( ټ ñÈ«