Status of Safety in Nuclear Facilities General Inspectorate Annual Report
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2020 edition Status of safety in nuclear facilities General Inspectorate Annual Report 68p_RIGN_2020_EN.indd 1 16/07/2021 06:28 A glossary of abbreviations and main technical terms is provided on pages 63 to 66 of this report. Status of safety in nuclear facilities - 2020 edition 68p_RIGN_2020_EN.indd 2 16/07/2021 06:28 2-3 Message from the CEO Philippe Knoche The year 2020 will remain a very exceptional one. The global health crisis that has plagued us for well over a year now has required us to adapt our organizations, our working methods, and even our ways of thinking in order to continue to conduct our production activities while maintaining control over nuclear safety, environmental protection, radiation protection, and occupational safety. Orano’s results for 2020 in terms of nuclear safety, must take into account. It is also a reminder as to the industrial security and radiation protection are very specific features of the activities we carry out on a nevertheless mixed. daily basis at our fuel cycle facilities, which involve both chemical and radioactive components. They therefore require a very high order of exigency. irst of all, our organizations demonstrated excellent resilience to the effects of the COVID By analyzing the root causes of these events and F crisis, particularly during the periods of implementing counter measures, we must succeed in lockdown, allowing us to keep our plants operating avoiding their recurrence. The experience feedback loop safely and to continue executing projects with the is essential to our continuous progress approach. To be support of our subcontractors. The number of safety- effective and achieve ongoing improvement requires related events has been very limited. Several factors better sharing between the different sites belonging to contributed to these results. I would like to emphasize our Group and a clear collective memory of past lessons the constant mobilization of all our employees, which learned. This will be one of our key areas to advance in enabled us to keep our plants running smoothly under 2021, a year which also marks the beginning of our new the difficult conditions imposed by the application of environmental safety and health, safety and radiation strict health measures. Initial feedback has also shown protection policies, which are linked to protected that the shorter management loops which the situation interests. The preparatory and construction work required us to implement have worked well. underpinning these policies was carried out in close Furthermore, the reduced number of inspections and the collaboration with the sites, which were able to voice scaling back of modification projects has enabled their assessments of current policy and their proposals everyone, while remaining focused on safety and going forward. These proposals now form the backbone security, to concentrate on the core mission of operation of our action. Their circulation is an opportunity to be and production. seized to carefully consider our challenges for the next three years. In counterpoint to these good results, a level 2 event on the INES safety scale was registered with the French Nuclear safety and occupational safety belong to our Nuclear Safety Authority. The event involved internal core values, and we must individually and collectively contamination of one of our employees, in excess of the aim for the highest standards to fulfill them. regulatory threshold, during an operation in a glove box, though no impact on the employee’s health is This annual report from the General Inspectorate allows anticipated. Within Orano, we have to go back more than us to measure the progress we have made and to identify ten years to find an event of this level, also involving the areas for improvement on which we still need to internal contamination. This event, which must be taken work. I encourage you to read it, to appropriate it and to in conjunction with other less serious radiation share it with your teams. protection events, is a strong warning signal that we General Inspectorate Annual Report 68p_RIGN_2020_EN.indd 3 16/07/2021 06:28 Vision of the Inspector General Pascal Wilz Based on a review of key indicators, analysis of reported events, and the lessons learned from inspections and various observations, 2020 has been a year of contrasts in nuclear safety. Safety and radiation protection were managed effectively during the lockdown period. However, in the annual results, there has been a worsening in some of the indicators. Ambitious action plans are being implemented to improve performance in safety and radiation protection. This annual report by the General Inspectorate Key results deals with industrial risk prevention, and assesses management of nuclear safety and radiation In 2020, there were 146 significant events reported protection for the year 2020 within the scope of by Orano or originating with Orano: 1 of these was at Orano’s activities and facilities. 1 level 2 of the INES scale, while 7 were at level 1 and 138 at level 0. he report is based on findings made during The level 2 event, the first in nearly 10 years within implementation of the annual inspection the scope of Orano’s activities, concerned a case of the program, and incorporates analyses of regulatory limit for exposure of an employee of the Group T being exceeded. events impacting safety, radiation protection and the environment, as well as the lessons After seeing a gradual reduction, the number of level 1 learned from those events. It takes into account events has remained stable for the past three years. the documents made available to the General Inspectorate, and is based on the observations and The significant increase in the number of level 0 events analyses of the Group’s safety, security, radiation confirms the trend observed over the last 4 years. While protection and environmental specialists. It also this reflects the Group’s strong desire that all deviations be reported, it is mainly explained by the increase in events draws on regular discussions held with the nuclear related to radiation protection without any decrease in safety authorities, the General Inspectorates and events highlighted in the previous report related to the other nuclear operators. operation of the Philippe Coste plant or to the management of periodic inspections and tests. These changes led to the incident prevention rate1 (or IPR) being kept below 0.1, which remains comparable to the rate for previous years. 1 Ratio of the number of events of 1 or higher on the INES scale over the number of level-0 events. Status of safety in nuclear facilities - 2020 edition 68p_RIGN_2020_EN.indd 4 16/07/2021 06:28 4-5 Apart from the events already mentioned, the most The inspection program was revised in May to incorporate significant deviations were: checking of the implementation of derogatory measures • the loss of containment on a silo holding radioactive during the lockdown period. In certain cases, inspections sludge when carrying out reinforcement works were carried out remotely, following the example of what without any impact on persons or the environment had been done for the monitoring of recommendations. (see the box on page 40), While this mode of operation is a remedy which can be • a fault in the monitoring of the mass of uranium- employed in cases where access to sites is restricted, it bearing materials in a storage with the authorized does however demonstrate the constraints and limits for number of containers being exceeded, an inspection system. • a fault in the characterization of 2 drums of waste containing uranium, The processing of recommendations in a timely manner • the failure to perform periodic inspections and remains an area for improvement that has been identified tests on several sites. since 2018 report. Collective efforts have been made to address past recommendations. The results for 2020 made it possible to confirm the positive trend observed In contrast to previous years, 2020 was also marked in 2019: the number of outstanding recommendations on certain of our sites abroad by industrial events with to be processed continued to decrease, including for the 2 consequences which were limited, but sufficiently most long-standing (outstanding for more than 2 years) significant to require the deployment of additional preventive to which particular attention is being paid. Efforts must measures. In particular, these concerned a release of continue to be made to ensure compliance with the ammonia when performing an intervention on a storage period of two months for the creation of an action plan vessel and the break of a pipe on an acid storage facility. This in response to a recommendation. Furthermore, deadlines must involve the taking into account of operating experience for the implementation of these action plans must also be feedback from the major accident at the port of Beirut complied with more fully. This topic is an area upon which (Lebanon) concerning the explosion of a chemicals storage attention must remain focused over the year to come. facility, which occurred on August 4, 2020. Establishing close ties with the general inspectorates of other operators was held back in 2020 due to the ongoing Despite the events mentioned previously, average situation. dosimetry levels remained stable, at low levels 3 both for the Group’s employees and those of our subcontractors. While the French annual limit is 20 millisieverts (mSv) for category A personnel, average Maintaining skills doses were 0.9 mSv and 0.8 mSv for employees and external workers respectively. Actions to develop skills, as an important strategic lever in providing assistance and support for the development The number of Group employees and external workers of the Group and the management of nuclear safety having received a dose of more than 14 mSv, which is the and radiation protection, continued to be taken in 2020.