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 
2007-07-24Displacement of fuel plates from their normal position in fuel assemblies during normal operation of research reactorAustraliaOPAL Research Reactor
2012-05-09Discovery of orphan source in a steel millSpainAlcal
2020-10-09Discovery of legacy radioactive sources and residual contaminationFranceUniversity Hospitals of Strasbourg
2003-07-16Discovery of a Cs-source in scrapSloveniaShipment of scrap
1997-05-15Discovery of a Cs-137 radiation source on a scrap yardGermanyMETAL FOUNDRY, HETTSTEDT
1999-11-19Discovery of a crack in boiler superheater penetrationUnited KingdomDUNGENESS-B2 UNIT B
1992-01-31DETECTION OF A DESIGN ERROR INTHE LEVEL INSTRUMENTATION IN THE ANNULUS OUTSIDE THE CONTAINMENT SPHERE (BETWEEN THE SPHERE AND THE CONTAINMENT BUILDING)SpainTRILLO-1
1995-11-08Degradation of the control rod system due to sticking of one control rod assemblyHungaryPAKS-2
1996-05-13Degradation of seismic stops of the reactor pitFranceCHINON-B1
2013-02-19Deficiency in the safety evaluation of the primary reactor drain lineNetherlandsHigh Flux Reactor Petten
2013-10-26Deficiency in the determination of the uranium content of liquid waste tanksNetherlandsMolybdenum Production Facility / Petten
2013-10-17Deficiency in the determination of the uranium content of liquid waste tanksNetherlandsMolybdenum Production Facility / Petten
1991-09-23DEFECTS IN BUGEY AND FESSENHEIM POWER PLANT REACTOR VESSEL HEADSFranceBUGEY-2
1991-06-22DEFECTIVE WELDS IN LOW PRESSURE SAFETY INJECTION SYSTEMFranceBELLEVILLE-2
1994-04-06DEFECT OF THE REACTOR PROTECTION SYSTEM LEVEL CONTROLLER OF THE STEAM GENERATORUkraineSOUTH UKRAINE-1
1991-08-01DEFECT IN THE COATING OF THE SUMPS (1300 PLANTS)FrancePALUEL-2
2019-03-07Dangerous Co60 sources discovered in scrap metal containersNetherlandsPort of Rotterdam
2016-10-07Cyclotron operated with an open bunker doorSwedenUniversity Hospital of Umeå
2004-01-12Cs137 shielded radioactive source smelted in metal recycling facilityItalyAcciaierie Beltrame, metal recycling facility, Vicenza
1987-11-20CRITICALITY SHUT DOWN MARGIN MEASUREMENT STARTED WITHOUT HYDRAULIC SCRAM SYSTEM BEING OPERABLESwedenOSKARSHAMN-3
1999-06-18Criticality accident during periodic inspectionJapanSHIKA-1
1994-03-03COOLANT LEAK FROM THE AUXILIARY PRIMARY CIRCUIT CLEANUP SYSTEM DURING COOLDOWN OF THE PRIMARY CIRCUITRussian FederationKOLA-2
2011-10-04Contamination of workers during inspectionBelgiumBelgoprocess
2001-07-10Contamination of workers during dismantling of alpha dry glove boxesCzech RepublicNUCLEAR RESEARCH INST., REZ
1992-11-23CONTAMINATION OF WORKERS DUE TO THE RUPTURE OF A MIXED OXIDE FUEL ROD DURING FABRICATIONBelgiumFBFC
1991-10-02CONTAMINATION OF THE SECONDARY WATER DUE TO ERRORS OF THE SPECIAL WATER TREATMENT FACILITY PERSONNELUkraineZAPOROZHE-2
2022-07-21Contamination of an employee and the break room in a nuclear medicine departmentFranceSCINTIGARD radiology centre (Nîmes)
2009-08-28Contamination of a vehicle with Cs-137ArmeniaNO facility associated to this event
2010-05-26Contamination of 6 workers during the recovery of a gammagraphy Co-60 sourceFranceindustrial radiography
2017-09-21Contamination event at research facilitySwedenStudsvik Nuclear AB