276 / 536
1. ASSESSMENT BY DOMAIN
1.1 The nuclear installations
Belleville-sur-Loire nuclear power plant
ASN considers that the performance of the Belleville-
sur-Loire NPP is on the whole in line with the general
assessment of EDF in the areas of safety, security and
radiation protection. Its environmental performance has
improved with respect to 2014.
With regard to nuclear safety, although operating rigour
has improved in certain activities (satisfactory configuring
of the systems and compliancewith the operating technical
specifications), other activities, notably those relating to the
periodic tests of equipment, deteriorated verymarkedly in
2015 andmust constitute one of the site’smain focuses for
improvement in2016. In addition, ASNconsiders that the
licensee must continue its efforts in the implementation
and adaptation of its national technical directives.
In the area of occupational radiation protection, the site’s
performance is in linewith the average for theEDF reactors.
However, several events that occurred essentially during
the reactor 2outage indicateweaknesses inmaintaining the
radiological cleanness of the premises even though activity
scheduling and work quality were not faulted in 2015.
With regard to pollution prevention and control of the
impact and nuisance for the public and the environment,
the site’s performancemade significant progress in2015and
is approaching the general assessment of EDF. The actions
undertakenby the site sinceASNresolution 2013-DC-0390
of December 2013 and the “environmental rigour plan”
implementedby the licensee have contributed to the site’s
recovery and confirmthat environmental issues are being
truly taken into account in the site’s general organisation,
which must now be developed and sustained over the
long termwith all the actors.
Chinon site
ASNconsiders that the performance of theChinonNPP is
on thewhole in linewith the general assessment of EDF in
the areas of safety, andenvironmental protection. It considers
that theplant’s radiationprotectionperformance stands out
positively with respect to the general assessment of EDF.
With regard to safety, ASNhad indicated in 2015 that the
Chinon site’s performance was showing an improvement,
which justified the return to a normal inspection rhythm in
2015, after the tightened surveillancemeasures which had
prevailed from2010 to 2014. It observes thatmanagement
of the periodic tests, which was still identified as a weak
point in 2014, has improved. Although the organisation
put in place seems satisfactory, particular vigilance is
required in themonitoring of outside contractors. Taken
generally, ASNconsiders that the procedures deployed by
the Chinon site over the last fewyears to anchor the error-
reduction practices in the activities must be continued.
The radiation protection organisation of the ChinonNPP is
considered satisfactory. The inspections carried out during
the reactor outages have revealed good management of
ORLÉANS DIVISION
I
n 2015,
ASN carried out 201 inspections in the Centre, Limousin and Ile-de-France regions
in 2015, comprising 82 inspections of nuclear installations on the EDF sites of Belleville-sur-
Loire, Chinon, Dampierre-en-Burly and Saint-Laurent-des-Eaux, 35 inspections of nuclear
sites in Ile-de-France (CEA Saclay and Fontenay, CIS bio international Saclay), 77 inspections in
small-scale nuclear activities and 7 inspections in the transport of radioactive substances. ASN
also ensured 18 days of labour inspection in the nuclear power plants.
A campaign of tightened inspections on the theme of the environment were carried out on the
Chinon, Dampierre-en-Burly, Saint-Laurent-des-EauxNPPs, and also the Nogent-sur-Seine NPP,
with the aimof identifying areas for improvement in this domain at both local and national level.
In 2015, 7 significant events rated level 1 on the INES scale were notified by the licensees of
EDF nuclear installations in the Centre region, and 4 significant events of level 1 were notified
by the licensees of the Ile-de-France nuclear sites. In the small-scale nuclear activities, 3 events
of level 1 on the ASN-SFRO scale were notified in the Centre and Limousin regions.
On the basis of the inspections conducted by the Orleans division, ASN inspectors drew up one
violation report which was submitted to the competent Public Prosecutor.
276
CHAPTER 08 :
REGIONAL OVERVIEW OF NUCLEAR SAFETY AND RADIATION PROTECTION
ASN report on the state of nuclear safety and radiation protection in France in 2015