Abstracts ASN Report 2019

א ِ ד ِ א Áǝƺ ȵȸƺɮƺȇɎǣȒȇ Ȓǔ ǝƺƏǼɎǝ ǣȅȵƏƬɎɀ ƏȇƳ ɀȒǣǼ ȵȒǼǼɖɎǣȒȇ • ¨ȸƺɮƺȇɎǣȒȇ Ȓǔ ȵȒǼǼɖɎǣȒȇ ȸƺɀɖǼɎǣȇǕ ǔȸȒȅ ƏƬƬǣƳƺȇɎƏǼ ɀȵǣǼǼƏǕƺ Ȓǔ ƳƏȇǕƺȸȒɖɀ ɀɖƫɀɎƏȇƬƺɀ As on numerous industrial sites, the operation of an NPP involves the handling and storage of “dangerous” chemical substances. The management of these substances and the prevention of pollution, which are the responsibility of the licensee, are ŅĸĺňĿĴŇĸķ ĵŌ ŅĸņłĿňŇļłŁ ӅӃӄӆі іӃӆӉӃׇłĹ ӄӉׇ ňĿŌ ӅӃӄӆׇĴŁķ ŇĻĸ ŅķĸŅ łĹ ӊׇ ĸĵŅňĴŅŌ ӅӃӄӅׇĴŁķ ŀňņŇ ĴĿņł ĶłŀŃĿŌ ŊļŇĻ ŇĻĸ requirements of the European texts. The licensee has obligations regarding the operational management of these substances and ŇĻĸ ļķĸŁŇļĹļĶĴŇļłŁ łĹ ŇĻĸ ĶłŅŅĸņŃłŁķļŁĺ ŃłŇĸŁŇļĴĿ ĻĴōĴŅķņє Ň ŀňņŇ also be able to take the necessary steps in the event of any incident or accident situations which would lead to pollution. The licensee must thus for instance precisely identify the location of each dangerous substance on its site, along with the corresponding quantities. Drums and tanks must be labelled in compliance with the European CLP (Classification, Labelling, Packaging) regulation and there must be retention areas designed to collect any spills. The NPPs must also adopt an organisation and resources to prevent pollution of the natural environment (groundwater, river, soil). łŅ ņĸʼnĸŅĴĿ ŌĸĴŅņ ĴŁķ ĴŇ ŇĻĸ ŅĸńňĸņŇ łĹ ё ĻĴņ ĵĸĸŁ carrying out steps to improve its management of the pollution risk by working to improve the confinement of dangerous liquid substances on its sites. Through its field inspections, ASN is closely monitoring the łŅĺĴŁļņĴŇļłŁĴĿ ĴŁķ ŀĴŇĸŅļĴĿ ŃŅłʼnļņļłŁņ ĴķłŃŇĸķ ĵŌ Ňł ŀĴŁĴĺĸ the dangerous substances present in its facilities and to deal with any pollution. • ¨ȸƺɮƺȇɎǣȒȇ Ȓǔ Ɏǝƺ ǝƺƏǼɎǝ ǣȅȵƏƬɎɀ ƬƏɖɀƺƳ ƫɵ Ɏǝƺ ǕȸȒɯɎǝ Ȓǔ ǼƺǕǣȒȇƺǼǼƏ ƏȇƳ ƏȅȒƺƫƏ ǣȇ ƬƺȸɎƏǣȇ ƬȒȒǼǣȇǕ ɀɵɀɎƺȅɀ Ȓǔ Ɏǝƺ z¨¨ ɀƺƬȒȇƳƏȸɵ ɀɵɀɎƺȅɀ Certain NPP cooling systems constitute environments favourable to the development of legionella and amoeba (see point 1.4). ŅĸņłĿňŇļłŁ ӅӃӄӉі іӃӈӊӋׇłĹ Ӊׇ ĸĶĸŀĵĸŅ ӅӃӄӉׇłŁ ŇĻĸ prevention of risks resulting from the dispersal of pathogenic micro-organisms (legionella and amoeba) by PWR secondary system cooling installations sets requirements concerning: ҄ the design, upkeep and monitoring of the facility; ҄ the maximum legionella concentrations in the water in the facility and downstream of it with regard to amoeba; ҄ the steps to be taken in the event of proliferation of micro- organisms in the systems, or infection, identified in proximity to the facility; ҄ information of the public and the administrations in the event of proliferation of micro-organisms. Through file reviews and its field checks, ASN closely monitors ŇĻĸ ŃŅĸʼnĸŁŇļʼnĸ łŅ ŅĸŀĸķļĴĿ ŀĸĴņňŅĸņ ŇĴľĸŁ ĵŌ Ňł ŅĸķňĶĸ ŇĻĸ risk of the proliferation of these micro-organisms and the results of these actions, including the chemical discharges resulting from biocidal treatment. As there can be a different number of reactors on each site, the results are given “per pair of reactors”, to enable a comparison to be made from one site to another. This for example entails: ҄ keeping the results as-is for the Golfech site, which has two reactors; ҄ dividing by two those of Chinon, which has four reactors (Chinon/2); ҄ dividing by three those of Gravelines, which has six reactors (Gravelines/3). Ł ĴķķļŇļłŁё ŇĻĸ ķļņĶĻĴŅĺĸ ķĴŇĴ ŇŅĴŁņŀļŇŇĸķ ĵŌ Ňł ĹłŅ each site are not representative of the operating time of the installations or of the activities performed on the sites. א ِ ד ِ ב ɀɀƺɀɀȅƺȇɎ Ȓǔ ƬȒȇɎȸȒǼ Ȓǔ ƳƺɎȸǣȅƺȇɎƏǼ ƺǔǔƺƬɎɀ ƏȇƳ ǣȅȵƏƬɎ Ȓȇ Ɏǝƺ ƺȇɮǣȸȒȇȅƺȇɎ • ɀɀƺɀɀȅƺȇɎ Ȓǔ ȵȸƺɮƺȇɎǣȒȇ Ȓǔ ƳƺɎȸǣȅƺȇɎƏǼ ƺǔǔƺƬɎɀً ƬȒȇɎȸȒǼ Ȓǔ ƺȇɮǣȸȒȇȅƺȇɎƏǼ ƳǣɀƬǝƏȸǕƺɀ ƏȇƳ ɯƏɀɎƺ ȅƏȇƏǕƺȅƺȇɎ Ł ӅӃӄӌё ĶĴŅŅļĸķ łňŇ ļŁņŃĸĶŇļłŁņ łŁ ŇĻĸ ĶłŁŇŅłĿ łĹ ķĸŇŅļŀĸŁŇĴĿ effects and the environmental impact of NPPs, mainly concerning the prevention of pollution and detrimental effects, control of environmental discharges and waste management. The reactors ĴŇ ĴĿňĸĿё ĸŁĿŌ ĴŁķ ĿĴŀĴŁʼnļĿĿĸ ҂ļŁĶĿňķļŁĺ ŇĻĸ ŅĸĴĶŇłŅ҂ underwent a reinforced inspection on these topics. ѡņ łŅĺĴŁļņĴŇļłŁ ĹłŅ ĶłŁŇŅłĿĿļŁĺ ŇĻĸ ķĸŇŅļŀĸŁŇĴĿ ĸĹĹĸĶŇņ ĴŁķ impact of NPPs on the environment needs to be improved on most sites and ASN considers that the licensee needs to raise its level of vigilance on this topic. Even if ASN observes progress in the performance of methodical microbiological risk assessments and greater assimilation by the sites of the requirements of the resolution concerning these risks, it nonetheless considers that corrective measures must be taken in the management of waste and pollution prevention. ŁĶĸ ĴĺĴļŁ ļŁ ӅӃӄӌё ŇĻĸŅĸ ŊĸŅĸ Ňłł ŀĴŁŌ ĸʼnĸŁŇņ ĿĸĴķļŁĺ Ňł the spillage of dangerous substances. Although these situations did not lead to notable environmental impacts, they underline the need for the licensee to continue to reinforce its efforts in this area. łĿĿłŊļŁĺ ŇĻĸ ļŁņŃĸĶŇļłŁ ĶĴŅŅļĸķ łňŇ ļŁ ӅӃӄӋё ļņņňĸķ ŅĸņłĿňŇļłŁ ӅӃӄӌі іӃӉӉӉׇłĹ ӄӋׇ ŃŅļĿ ӅӃӄӌׇŇł ŅĸĺňĿĴŇĸ ŇĻĸ ŁĸŊ containment structures on the Civaux site. During inspections ĶĴŅŅļĸķ łňŇ ļŁ ӅӃӄӌё ņŃļĿĿĴĺĸ ĸŋĸŅĶļņĸņ łŁĶĸ ĴĺĴļŁ ķĸŀłŁņŇŅĴŇĸķ shortcomings in the containment of liquid dangerous substances. In addition to the remedial measures requested on the sites ĶłŁĶĸŅŁĸķё Ĵņľĸķ Ňł ŃŅłķňĶĸ ĴŁ ļŁʼnĸŁŇłŅŌ łĹ ŇĻĸ ņļŇňĴŇļłŁ ĹłŅ ĴĿĿ łĹ ļŇņ ņє ĴĿņł Ĵņľĸķ Ňł ļŀŃŅłʼnĸ the monitoring and maintenance of the pipes carrying dangerous substances. On some sites, ASN observed significant shortcomings in waste sorting, conditioning, storage and traceability of removal, that must be rapidly corrected by the licensee. Ł ӅӃӄӌё Ĵņ ļŁ ŃŅĸʼnļłňņ ŌĸĴŅņё łĵņĸŅʼnĸķ ŇĻĴŇ ķļņĶĻĴŅĺĸņׇĴŅĸ well managed on most of the sites. However, certain events indicate occasional weaknesses. א ِ ה Áǝƺ ƬȒȇɎȸǣƫɖɎǣȒȇ Ȓǔ ȅƏȇ ƏȇƳ Ɏǝƺ ɀƏǔƺɎɵ ȒȸǕƏȇǣɀƏɎǣȒȇɀ The contribution of people and organisations to the safety of NPPs is a decisive factor in all steps of the plant lifecycle (design, construction, commissioning, operation, decommissioning). ASN therefore focuses on the conditions which are favourable or prejudicial to the contribution to NPP safety by the operators and worker groups. It defines the Social, Organisational and Human ĴĶŇłŅņ Ҏ ҏ Ĵņ ĵĸļŁĺ ĴĿĿ ŇĻĸ ĴņŃĸĶŇņ łĹ ŊłŅľļŁĺ ņļŇňĴŇļłŁņ and the organisation which will have an influence on the work done by the operators. א ِ ה ِ׏ xȒȇǣɎȒȸǣȇǕ ǝȒɯ ȒȸǕƏȇǣɀƏɎǣȒȇɀ ɯȒȸǸ • Áǝƺ XȇɎƺǕȸƏɎƺƳ xƏȇƏǕƺȅƺȇɎ ³ɵɀɎƺȅ Ļĸ ŅķĸŅ łĹ ӊׇ ĸĵŅňĴŅŌ ӅӃӄӅׇņŇļŃňĿĴŇĸņ ŇĻĴŇ ŇĻĸ ĿļĶĸŁņĸĸ ŀňņŇ ļŁ particular have the technical skills needed to manage the activities 296 ASN Report on the state of nuclear safety and radiation protection in France in 2019 ׏׎ ٲ THE EDF NUCLEAR POWER PLANTS