ASN Report 2017

218 ASN report on the state of nuclear safety and radiation protection in France in 2017 Chapter 08  - Regional overview of nuclear safety and radiation protection worksites. The results show that the inspected companies on the whole comply with the regulatory requirements regarding the organisation of radiation protection, operator training and monitoring, equipment maintenance and the general preparation of industrial radiography work. Improvements must nevertheless be made in the implementation of marking-out plans, the utilisation of Sentinelle radiation monitors, the consistency of the worksite documents with the equipment used, the risk assessments, the analysis of received doses and the transmission of worksite schedules. 1.4 Nuclear safety and radiation protection in the transport of radioactive substances ASN did not carry out any inspections that exclusively addressed the transport of radioactive substances in 2017. During an industrial radiography inspection however, the examination of the requirements relating to transport led ASN to point out the requirements applicable to the securing of the gamma ray projector transport package and the conditions of transport of the gamma ray projector control key. 1.5 Radiation protection of the public and the environment Radon After being a source of proposals in 2016 in the working groups tasked with developing the 3rd Regional Health/ Environment Plan (PRSE3), this plan was validated on 4th July 2017. At the end of 2017, in collaboration with the Regional Health Agency (ARS), ASN drew up the action sheet for communicating to the Bretagne populations on the radon risk. Furthermore, ASN continued – again in collaboration with the ARS – to check compliance with the radiation protection requirements relative to radon in the state-run schools (kindergartens and primary schools) of two municipalities 2 . These inspections confirmed that these establishments, which are concerned by the Order of 22nd July 2004, are subject to regular monitoring. However, after several years and despite the implementation of simple corrective measures, some institutions still display radon concentrations above the levels set by the regulations at which action is required (400 and 1,000 Bq/m 3 ). These establishments will have to undergo further work to reduce the radon contents to below the reference levels. Mining sites For several years now ASN has been attentive to the progress of the actions carried out by Areva to inventory radiologically marked areas around the former mining sites and sites in the public domain where uranium mining waste rock has been reused. 2 . Quimper in Finistère département and Saint Brieuc in Côtes d’Armor département . After having validated the 12 work sheets concerning the sites of waste rock reuse in 2016, ASN monitored, with the Dreal (Regional Directorate for the Environment, Planning and Housing), the progress of the work which started in late 2017 and will continue in 2018. In this same context, in November 2017 ASN and the Dreal conducted an inspection of the former mining site of Prat Mérien which had been chosen and authorised to accept the mining waste rock from the work in the sector of the former Lignol concession. This inspection showed that Areva complies with the radiation protection provisions of the Prefectural Order of 19th June 2017 governing the disposal of these materials. With regard to sites of mining waste rock reuse situated near living areas (dwellings or enterprises), Areva, at the request of the State, conducted a first radon screening campaign by sending radon dosimeters to all the property owners concerned. Despite a return rate of less than 50%, this campaign did reveal two dwellings in which the radon concentrations exceed 2,500 Bq/m 3 . The complementary studies of these two dwellings found that the radon did not originate from uranium-bearing mining waste rock. ASN also asked for dosimeters to again be distributed to the populations concerned. Reflections have moreover been initiated with the Dreal and the ARS to take into consideration dwellings with radon concentrations of between 300 and 2,500 Bq/m 3 . Lastly, ASN has issued favourable opinions on the projects to remove the radiologically marked sludge and sediments from the former Breton mining sites. These materials will have to be excavated and transported to the former Écarpière mining site situated in the Loire-Atlantique département , on which the disposal of these materials has been authorised by a Prefectural Order of 21st August 2017. 2. Additional information 2.1 L’action d’information du public Press conference On 26th September 2017, ASNheld a press conference in Rennes on the situation of nuclear safety and radiation protection. Work with the Local Information Committees (CLI) ASN participated in two general assemblies of the CLI for the Brennilis NPP; it presented, among other things, its assessment of the safety situation of the Brennilis NPP. ASN also provided information on the management of soils polluted by a nuclear installation to the technical group set up by the Brennilis CLI to analyse the licensee’s file concerning management of the soils beneath the Effluent Treatment Station (STE). In accordance with the provisions introduced by Act 2015-992 of 17th August 2015 relative to Energy Transition for Green Growth, the Brennilis CLI organised a public meeting on the dismantling of the NPP. BRETAGNE