INES Levels
INES N/A
INES 0
INES 1
INES 2
INES 3
INES 4
INES 5
INES 6
INES 7

INES 2: Incident

Impact on People and Environment:
  • Exposure of a member of the public in excess of 10 mSv.
  • Exposure of a worker in excess of the statutory annual limits.
Impact on Radiological Barriers and Control:
  • Radiation levels in an operating area of more than 50 mSv/h.
  • Significant contamination within the facility into an area not expected by design.
Impact on Defence-in-Depth:
  • Significant failures in safety ­provisions but with no actual ­consequences.
  • Found highly radioactive sealed orphan source, device or transport package with safety provisions intact.
  • Inadequate packaging of a highly radioactive sealed source.
▸ Legenda & explanation
date title location 
1998-05-13Large leak in the residual heat removal system (RHR)FranceCIVAUX-1
2019-05-06Emergency diesel generators - earthquake resistance riskFranceCIVAUX-1
2010-04-23Worker overexposure FranceCHINON-B4
1991-09-16BORON MEASURING DEVICE CALIBRATION ERROR AT THE CHEMICAL LABORATORYFranceCHINON-B1
1996-05-13Degradation of seismic stops of the reactor pitFranceCHINON-B1
1991-06-12PARTIAL INOPERABILITY OF THE REACTOR PROTECTION SYSTEMFranceCATTENOM-4
2023-02-02External contamination of a worker leading to exceeding of the annual statutory dose limitFranceCATTENOM-3
2011-12-21Level 2 incident on INES scale concerning a pipe nonconformity in two Cattenom NPP fuel storage poolsFranceCATTENOM-2 and 3
1992-08-21ABNORMAL PRESENCE OF A FILTER ON A DRAINING CIRCUIT OF THE REACTOR CAVITYFranceCATTENOM-1
1994-03-31ACCIDENT CLOSE TO THE FORMER RAPSODIE REACTOR AT THE CADARACHE SITEFranceCADARACHE, RAPSODIE
1991-11-05SIGNIFICANT CONTAMINATION IN THE CHEMICAL PURIFICATION LABORATORY IN THE CADARACHE RESEARCH CENTERFranceCADARACHE
1993-06-21OVERFLOW OF A LIQUID EFFLUENT STORAGE TANKFranceCADARACHE
2006-11-06Operation outside limits and conditions at a former MOX facilityFranceCADARACHE
2009-10-06Failure in fissile material accountabilityFranceCADARACHE
1994-01-29FAILING TO COMPLY WITH THE OPERATING PROCEDURESFranceBUGEY-5
1991-09-23DEFECTS IN BUGEY AND FESSENHEIM POWER PLANT REACTOR VESSEL HEADSFranceBUGEY-2
2014-10-14A practitioner’s regulatory annual exposure dose limit was exceededFranceBordeaux University Hospital - Pellegrin Hospital
2013-08-02Uncontrolled release of radioactive effluents into the public sewerage systemFranceBordeaux university hospital
2015-06-30Bordeaux University: discovery of radioactive sources and incidental exposure of personsFranceBordeaux University
2013-04-24Accidental exposure of a worker exceeding annual regulatory limit to the skinFranceBLAYAIS-4
2015-08-18Irradiation of a worker during scheduled NNP outage at Le BlayaisFranceBLAYAIS-4
1999-12-28Partial loss of safeguards systems as a result of external floodingFranceBLAYAIS-1
1991-06-22DEFECTIVE WELDS IN LOW PRESSURE SAFETY INJECTION SYSTEMFranceBELLEVILLE-2
1991-05-24UNAVAILABILITY OF REACTOR LEVEL MEASUREMENTFranceBELLEVILLE-2
1991-07-10INADVERTENT DILUTION OF THE PRIMARY FLUID DURING A COLD SHUTDOWNFranceBELLEVILLE-2
1998-06-11Automatic shutdown of the reactor caused by spurious triggering of the containment spray system and jamming of a control cluster in the high position during this shutdownFranceBELLEVILLE-2
2001-03-12Risk of recirculation system valves becoming jammed in 5 NPPsFranceBELLEVILLE-1
1996-04-06Sticking of a control rod cluster during reactor scramFranceBELLEVILLE-1
2017-06-20Emergency diesel generators auxiliary systems not compliant with seismic requirements on the 1300 MW reactors (8 sites - 20 reactors)FranceBELLEVILLE-1
2017-08-02Risk of loss of heat sink in case of an earthquake - 20 reactors concernedFranceBELLEVILLE-1