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

INES 1: Anomaly

Impact on Defence-in-Depth
  • Overexposure of a member of the public in excess of statutory ­annual limits.
  • Minor problems with safety components with significant defence-in-depth remaining.
  • Low activity lost or stolen radioactive source, device or transport package.
(Arrangements for reporting minor events to the public differ from country to country. Also, it is difficult to ensure precise consistency in rating events between INES Level-1 and Below scale/Level-0)
Legenda & explanation
date title location 
2013-05-30EDG failed to start after unintentional loss of two phases on 400 kV incoming offsite supplySwedenFORSMARK-3
2012-10-12Radioactive gauge, lost and foundGreeceAluminium SA
2012-09-05Inadequate planned repair of the 10UV68S201 quick-acting gate valve despite of the regulations of the Operational Limits and ConditionsHungaryPAKS-1
2012-09-03Stolen and lately recovered intact radioactive sourceBulgariaSofia
2012-06-23Radiation Exposure of workers to tritiumIndiaRAJASTHAN-5
2012-06-17Theft of portable radioactive gaugePeruUchucchacua, Oyón, Region Lima / BISA Construction
2012-04-05Fire and abnormal primary circuit leak occured at Penly NPP n°2 reactorFrancePENLY-2
2012-02-23Am-241 source meltingFinlandOutokumpu Tornio Works
2011-12-22Start of a fire in decontamination machine of former nuclear manufacturing plant of Bosco Marengo (AL) under decommissioningItalyBosco Marengo (AL)
2011-10-19Leakage of Heavy Water from Feeder PipePakistanKANUPP Unit-1 (K-1)
2011-10-04Hazardous manipulation of a lightning rod with Ra-226PortugalVila Nova de Gaia
2011-09-28Found radioactive sourceCzech RepublicPraha
2011-09-13Melting of Orphan SourceBelgiumDuferco - la Louvière
2011-09-12Explosion and fire at Centraco CENTRACO waste processing and conditioning plantFranceCENTRACO (Codolet, France)
2010-12-02Non Usual Event declared due to loss of outside power at Laguna Verde NPP U1MexicoLAGUNA VERDE-1
2010-11-05Lost or stolen sources containing Co-60 PolandClosed Iron foundry in Town Lublin
2010-10-22Potential damage in riser pipe at Laguna Verde NPP U2MexicoLAGUNA VERDE-2
2009-07-24Detachment, spreading and recovery of industrial radiography sourcePeruLima
2009-05-16Person contaminatedPolandRadioisotope Centre POLATOM/Otwock-Swierk
2008-08-28Radiation Worker Skin OverexposureNetherlandsCovidien, Mallinckrodt Medical B.V., Petten
2008-08-03Incident involving radioactive material at IAEA safeguards laboratoryAustriaIAEA Safeguards Seibersdorf Laboratory
2008-07-07Deterioration of the containment depression of unit 1 during an air locking operation for maintenance activitiesHungaryPAKS-1
2008-07-07Spillage of uranium-bearing effluents into the environment at the SOCATRI nuclear facility (Saint-Paul-Trois-Châteaux (Drôme), France)FranceSOCATRI Bollène (Vaucluse)
2008-05-30Fast stop of the main circulation pumps and simultaneous loss of their fly wheel systems during reactor scram.FinlandOLKILUOTO-1
2008-04-07Loss of Industrial Gamma Radiography Exposure Device containing Ir-192 radiography sourceJapanNon-Destructive Inspection Co., Ltd / Chiba
2008-03-14Stainless steel coils contaminated by Cobalt 60ItalyOther
2007-04-19Cs-137 source found in a scrap container prepared for exportLebanonEl Khaled Scrapyard / Tripoli
2007-03-06Reactor Scram due to Inadvertent Opening of Multiple SRV’sSwitzerlandLEIBSTADT
2007-02-12Radioactive source (Cs-137) found at a scrap yardNetherlandsJewometaal, Rotterdam-Botlek
2006-12-07Incidental Exposure during maintenance tasksArgentinanon nuclear