Reportable Events

On a quarterly basis, Bruce Power posts events reported to the Canadian Nuclear Safety Commission as per REGDOC 3.1.1, ‘Reporting Requirements for Nuclear Power Plants’ (formerly known as S-99 events).

For more information on the event reports listed, event reports from prior years or. other reports on Bruce Power operations, contact John Peevers at 519-361-6583.

Date ReportedStationTitle
Jan 2, 2025ABPressure Tube Burst Test Result from Artificially Hydrided Burst Test Specimen
Jan 21, 2025ADomestic Water Release
Jan 21, 2025CSControlled Nuclear Information Exported Without a Licence
Jan 21, 2025AUnsecured Equipment in Seismic Area
Jan 22, 2025BUnit 5 Unplanned Change in Reactor Power
Jan 22, 2025BUnit 7 Neutron Overpower Calibration Configuration
Jan 22, 2025AHours of Work Exceedance
Jan 23, 2025BMinistry of Health and Long Term Care Event Report
Jan 28, 2025CSImpairment of the Remote Radiation Monitoring System
Jan 29, 2025BUnit 7 Unposted Hazard
Jan 29, 2025BAirlock Seal Emergency Gas Supply Environmental Qualification
Feb 4, 2025BObstructed Posted Radiation Hazard Sign
Feb 7, 2025CSHours of Work Exceedance
Feb 14, 2025AHigher than Expected amount of Gizzard Shad Impinged
Feb 27, 2025AGizzard Shad Run Impacts Bruce A
Feb 28, 2025BMinistry of Labour Construction Event Notice
Mar 3, 2025CSHours of Work Exceeded due to Severe Weather
Mar 4, 2025BBruce B SDS1 High Log Rate alarm response time variation
Mar 7, 2025AUnit 1 Unplanned Change in Reactor Power due to Condensor Vacuum
Mar 7, 2025ALate Preliminary Event Report
Mar 12, 2025BUnit 7 Late Regulatory Predefined Maintenance
Mar 12, 2025BRadiation Safety Instrument in field past calibration
Mar 14, 2025AUnit 3 Late Regulatory Predefined Maintenance
Mar 18, 2025ASafety Sensitive Position Hours of Work Exceedance
Mar 21, 2025ABruce A Unposted Radiation Hazard
Mar 21, 2025BBruce B Elevated Tritium Levels
Mar 28, 2025BUnit 5 Unposted Radiation Hazard

Date ReportedStationReport #Title
Jan 2, 2024AB-2024-329290Unit 2 Unplanned Reactor Power Change
Jan 2, 2024BB-2024-329021Unposted Radiological Hazard
Jan 3, 2024BB-2024-329767Unit 8 Unplanned Reactor Power Change
Jan 10, 2024AB-2024-329722Unit 1 Unplanned Reactor Power Change
Jan 17, 2024AB-2024-331875Confidential – Class 7 Shipment is in Non-Compliance with Regulations
Jan 19, 2024CSB-2024-332846Controlled Nuclear Information Exported Without a Licence
Jan 25, 2024BB-2024-334626Bruce B Water Demineralization Plant Total Suspended Solids Limit Exceeded
Jan 26, 2024AB-2024-334907Ministry of Labour Order – January 17, 2024
Feb 1, 2024CSB-2024-338711Late Ministry of Labour Order Notification
Feb 8, 2024AB-2024-339833Low Level Positive Personal Air Sample Result
Feb 8, 2024AB-2024-339468Below Minimum Complement
Feb 8, 2024AB-2024-339950Impairment of Shutdown System 1 and 2
Feb 8, 2024AB-2024-339819Ministry of Labor Event
Feb 9, 2024AB-2024-339618Fire Extinguisher Used on Smouldering Blanket in Unit 3
Feb 14, 2024BB-2024-337887Overdue Bleed and Relief Circuit Temperature Check
Feb 16, 2024AB-2024-342614Ministry of Labor Event
Feb 20, 2024CSB-2024-341470Impairment of Remote Radiation Monitoring System
Feb 23, 2024AB-2024-343284Source assembly activity greater than exemption quantity
Feb 26, 2024BB-2024-344358Late Reporting of Change of Status of Certified Personnel
Feb 27, 2024AB-2024-344665Ministry of Labour Order – February 20, 2024
Feb 27, 2024CSB-2024-344133Ministry of Labour Order – February 20, 2024
Feb 28, 2024AB-2024-289395Predefined Maintenance Not Completed
Feb 28, 2024AB-2024-344715Late Preliminary Report for Overdue Predefine
Mar 4, 2024BB-2024-344613Worker Injured
Mar 6, 2024BB-2024-347658Environmental Release
Mar 12, 2024BB-2024-350412Class 7 Shipment in Non-compliance with Package Certificate
Mar 14, 2024AB-2024-350449Ministry of Labour Notification – March 8, 2024
Mar 15, 2024AB-2024-352336Ministry of Labour Notification – March 14, 2024
Apr 4, 2024BB-2024-356595Unit 5 Unplanned Reactor Power Change
Apr 9, 2024BB-2024-358235Fuel Handling Configuration Not Considered in Safety Analysis
Apr 9, 2024AB-2024-357864Fire Resistant Fluid Leak in Unit 1
Apr 10, 2024BB-2024-350030Impairment of Shutdown System 1 and 2
Apr 11, 2024AB-2024-359019Overdue Fire Protection Predefines
Apr 11, 2024AB-2024-360270Low Level Positive Personal Air Sample Result
Apr 12, 2024BB-2024-359342Ministry of Health and Long Term Care Event Report
Apr 15, 2024AB-2024-358038Field Configuration Found Inconsistent with Design
Apr 17, 2024AB-2024-360367Unit 1 Unplanned Reactor Power Change
Apr 18, 2024AB-2024-361472Low Level Positive Personal Air Sample Result
Apr 19, 2024BB-2024-361151Ministry of Health and Long Term Care Event Report
Apr 22, 2024BB-2024-362812Unit 7 Inverter Cabinet Fire
Apr 23, 2024BB-2024-362774Unit 8 Unplanned Reactor Power Change
Apr 30, 2024AB-2024-366135Late Reporting of Change of Status of Certified Personnel
May 1, 2024AB-2024-365257Suspected Counterfeited Power Module Reported by a Vendor
May 2, 2024AB-2024-365359Missed Safety System Test
May 10, 2024AB-2024-367706Safeguards Equipment Damaged
May 10, 2024AB-2024-368064Impairment of Shutdown System 1 and 2
May 15, 2024CSB-2024-366923Controlled Nuclear Information Exported Without a Licence
May 17, 2024AB-2024-370258Ministry of Labor Event
May 22, 2024AB-2024-371344Low Level Positive Personal Air Sample Results
May 24, 2024AB-2024-370953Unit 1 Annulus Gas System Leak Detection Unavailability
May 24, 2024CSB-2024-372704Ministry of Labour Order – May 17, 2024
May 28, 2024BB-2024-372131Unit 5 Unplanned Reactor Power Change
May 30, 2024AB-2024-373568Low Level Positive Personal Air Sample Results
Jun 6, 2024BB-2024-375554Overdue Safety System Test
Jun 7, 2024AB-2024-377338Low Level Positive Personal Air Sample Results
Jun 12, 2024CSB-2024-378315Ministry of Labour Order – June 6, 2024
Jun 12, 2024ABB-2024-377562Neutron Dose Measured From Retube Waste Container
Jun 24, 2024AB-2024-381643Low Level Positive Personal Air Sample Result
Jun 25, 2024CSB-2024-382705Ministry of Labour Order – June 20, 2024
Jun 27, 2024AB-2024-383631Low Level Positive Personal Air Sample Result
Jul 2, 2024AB-2024-383561Below Minimum Complement
Jul 4, 2024BB-2024-385054Unit 0 Halocarbon Release
Jul 10, 2024AB-2024-381262Impairment of Negative Pressure Containment
Jul 10, 2024AB-2024-385934Unit 1 Unplanned Reactor Shutdown
Jul 15, 2024AB-2024-387295Low Level Positive Personal Air Sample Result
Jul 16, 2024AB-2024-387330Unposted Radiological Hazard
Jul 17, 2024AB-2024-388806Ministry of Labour Event
Jul 18, 2024BB-2024-388549Unit 5 Unplanned Reactor Shutdown
Aug 2, 2024AB-2024-394083Ministry of Health and Long Term Care Event Report
Aug 9, 2024AB-2024-394493Low Level Positive Personal Air Sample Result
Aug 12, 2024BB-2024-393891Unit 7 Emergency Water System Unavailability
Aug 13, 2024AB-2024-394255Domestic Water Release
Aug 20, 2024AB-2024-396649Ministry of Health and Long Term Care Event Report
Aug 20, 2024AB-2024-396922Low Level Positive Personal Air Sample Result
Aug 27, 2024AB-2024-398565Ministry of Labour Event
Aug 29, 2024BB-2024-398946Bruce B Environmental Regulatory Limit Exceedance
Sep 4, 2024CSB-2024-400103Late Detailed Report
Sep 6, 2024AB-2024-400670Unit 2 Pump Fire
Sep 6, 2024AB-2024-400343Low Level Positive Personal Air Sample Result
Sep 9, 2024AB-2024-401315Unit 1 Unplanned Reactor Shutdown
Sep 9, 2024BB-2024-400719Unit 0 Halocarbon Release
Sep 10, 2024CSB-2024-401736Recertification Program Non-Compliant with Regulations
Sep 13, 2024AB-2024-403748Low Level Positive Personal Air Sample Results
Oct 1, 2024AB-2024-409027Low Level Positive Personal Air Sample Result
Oct 2, 2024CSB-2024-409159Ministry of Health and Long Term Care Event Report
Oct 2, 2024CSB-2024-408328Ministry of Labour Construction Event Notice
Oct 15, 2024AB-2024-411307Unit 2 Whole Body Monitor Damage
Oct 18, 2024BB-2024-413071Interruption of Safeguards Equipment
Oct 23, 2024AB-2024-414680Unposted Radiological Hazard
Oct 30, 2024AB-2024-407018Impairment of Negative Pressure Containment
Nov 6, 2024BB-2024-419081Environmental Action Level Reached
Nov 14, 2024AB-2024-421450Contamination Meters Used Past Calibration Date
Nov 22, 2024BB-2024-423851Overdue Safety System Test
Nov 29, 2024AB-2024-425553Standby Class III Power Unavailable
Nov 29, 2024BB-2024-426083Unit 7 Unplanned Reactor Shutdown
Dec 2, 2024BB-2024-422403Unit 8 Confinement System Impairment
Dec 6, 2024AB-2024-428661Late Preliminary Event Report
Dec 6, 2024AB-2024-426186Overdue Pump Duty Swap Predefined Maintenance
Dec 9, 2024BB-2024-428137Unit 5 Unposted Radiological Hazard

Date ReportedStationReport #Title
Jan 3, 2023BB-2023-224948Prior Notification of Change to the Facility Operation not Provided
Jan 3, 2023BB-2023-230481Station Shift Complement
Jan 5, 2023BB-2023-230657Bruce B Water Demineralization Plant Total Suspended Solids Limits Exceeded
Jan 11, 2023AB-2023-231756Missed Safety System Tests
Jan 13, 2023BB-2023-232336Bruce B Water Demineralization Plant Iron and Aluminum Limit Exceeded
Jan 16, 2023AB-2023-234119Relief Valve Testing not Completed
Jan 23, 2023BB-2023-234849Impairment of Negative Pressure Containment
Jan 26, 2023AB-2023-236147Gamma Survey Meter Past Calibration
Feb 15, 2023ABB-2023-238163Predefined Maintenance not Completed
Feb 16, 2023AB-2023-241249Unit 0 Standby Safety-Related System Impairment
Feb 21, 2023BB-2023-242458Unit 8 Unplanned Reactor Power Change
Mar 2, 2023ABCSB-2023-247463Potential Labour Disruption on Bruce Site
Mar 6, 2023BB-2023-246135Bulk Waste Material Shipment
Mar 9, 2023BB-2023-244302Partial Safety System Test not credited correctly
Mar 9, 2023CSB-2023-247945Controlled Nuclear Information Exported without a Licence
Mar 15, 2023CSB-2023-249789Leak Testing for Radiological Sealed Sources and Devices Delayed
Apr 4, 2023AB-2023-255099Unit 4 Unplanned Reactor Power Change
Apr 6, 2023BB-2023-253241Unit 5 Shut-off Rods Partial Drop During Maintenance
Apr 6, 2023AB-2023-257066Low Level Positive Personal Air Sample Result
Apr 18, 2023AB-2023-258704Below Minimum Complement
Apr 20, 2023AB-2023-245366Preventive Maintenance Inspection Overdue
Apr 27, 2023CSB-2023-261470Ministry of Labour Industrial Event Notice
Apr 27, 2023AB-2023-262108Ministry of Labour Construction Event Notice
May 3, 2023AB-2023-263308Leak in Heat Transport Purification System
May 8, 2023ABCSB-2023-265697Security Protected
May 12, 2023CSB-2023-266447Late Detailed Report
May 15, 2023AB-2023-266395Unit 2 Unplanned Reactor Shutdown
May 18, 2023ABB-2023-269219Late Reporting of Change of Status of Certified Personnel
May 19, 2023AB-2023-267905Unposted Radiological Hazard
May 23, 2023CSB-2023-266225Vehicle Monitor Not Calibrated
May 25, 2023AB-2023-263502Radiation Protection Action Level Exceeded
Jun 8, 2023AB-2023-272829Unposted Radiological Hazard
Jun 9, 2023CSBB-2023-274481Late Reporting of Change of Status of Certified Personnel
Jun 14, 2023BB-2023-275573Late Submission of Preliminary Report
Jun 19, 2023AB-2023-276167Impairment of Negative Pressure Containment
Jun 19, 2023BB-2023-276656Safeguard Equipment Damaged
Jun 21, 2023AB-2023-277145Below Minimum Complement
Jun 22, 2023BB-2023-278373Ministry of Labour Construction Event Notice
Jun 22, 2023AB-2023-277091Unposted Radiological Hazard
Jun 29, 2023BB-2023-252847Unit 8 Unplanned Reactor Power Change
Jun 30, 2023AB-2023-277942Potential Interruption of Safeguards Equipment
Jun 30, 2023AB-2023-280142Low Level Positive Personal Air Sample Result
Jul 4, 2023BB-2023-280558Late Preliminary Report
Jul 11, 2023AB-2023-282301Potential Interruption of Safeguards Equipment
Jul 11, 2023AB-2023-282039Unit 4 Unplanned Reactor Shutdown and Unit 0 Electrical Transient
Jul 11, 2023AB-2023-286325Unit 3 Public Address Speaker Found with Foreign Material Inserted
Jul 28, 2023CSB-2023-286664Emergency Protective Services Below Minimum Shift Complement
Jul 28, 2023AB-2023-286721Transportation Package Damaged During Transit
Aug 8, 2023BB-2023-288344Moderator Purification Circuit Motorized Containment Boundary Valve Impairment
Aug 8, 2023CSB-2023-281478Controlled Nuclear Information Exported without a Licence
Aug 23, 2023AB-2023-291306-1Ministry of Labour Construction Event Notice
Aug 25, 2023AB-2023-291306Small Fire in Unit 3 Vault
Aug 28, 2023AB-2023-293501Unit 3 Small Fire from Grinding Spark
Aug 28, 2023AB-2023-293421Unit 3 Grinder Caught Fire
Aug 30, 2023BB-2023-294162Missed Safety System Test
Sep 5, 2023AB-2023-294828Small Fire on Unit 0 Instrument Air Compressor
Sep 12, 2023BB-2023-297455Unit 8 Forced Outage
Sep 14, 2023AB-2023-297852Unit 1 Turbine Trip and Unplanned Shutdown
Sep 18, 2023AB-2023-294531Below Minimum Complement
Sep 18, 2023AB-2023-300102Late Preliminary Report – Below Minimum Complement
Sep 26, 2023BB-2023-301453Overdue Safety System Test
Sep 28, 2023AB-2023-301067Maintenance for Fire Foam Protection not Completed
Oct 3, 2023AB-2023-305337Late Preliminary Report – Overdue Fire Foam Maintenance
Oct 5, 2023AB-2023-303714Ministry of Labour Event
Oct 13, 2023AB-2023-306229Below Minimum Shift Complement – Operations
Oct 26, 2023BB-2023-310256Unposted Radiological Hazard
Oct 27, 2023AB-2023-310622Unit 0 Chlorinated Water Release
Nov 1, 2023BB-2023-312088Unit 6 Unplanned Reactor Power Change
Nov 2, 2023AB-2023-312854Worker Injured
Nov 13, 2023BB-2023-315355Ministry of Labour Event
Nov 13, 2023BB-2023-315943Low Level Positive Personal Air Sample Result
Nov 17, 2023AB-2023-316823Unposted Radiological Hazard
Nov 17, 2023AB-2023-317848Late Reporting of Change of Status of Certified Personnel
Nov 22, 2023AB-2023-317296Controlled Nuclear Information Exported Without a Licence
Nov 24, 2023AB-2023-317468Below Minimum Complement
Nov 27, 2023AB-2023-319298Impairment of Shutdown Systems 1 and 2
Nov 27, 2023BB-2023-314950Potential Seismic Interaction
Dec 1, 2023BB-2023-321025Impairment of Emergency Water System
Dec 8, 2023AB-2023-323497Unposted Radiological Hazard
Dec 11, 2023BB-2023-320465Overdue Containment Monitoring Calibrations
Dec 11, 2023AB-2023-324321Unposted Radiological Hazard
Dec 22, 2023ABCSB-2023-325446Undocumented Backup Public Address System

Date ReportedStationReport #Title
Jan 14, 2022BB-2022-140500Unit 7 Public Address Speaker Found With Foreign Material Inserted
Jan 20, 2022BB-2022-142876Ministry of Labour Event Notice
Jan 25, 2022BB-2022-143179Unposted Hazard at the Unit 5 Pump Stool Collection Tank
Jan 26, 2022AB-2022-143320Unit 1 Unplanned Shutdown
Jan 27, 2022BB-2022-143779Ministry of Labour Event Notice
Jan 28, 2022AB-2022-141657Unposted Radiological Hazards
Jan 31, 2022ABCSB-2022-146185COVID-19 Response Update
Jan 31, 2022ABCSB-2022-146190COVID-19 Response Update
Jan 31, 2022ABCSB-2022-146195COVID-19 Response Update
Jan 31, 2022ABCSB-2022-146735COVID-19 Response Update
Feb 7, 2022ABCSB-2022-148639COVID-19 Response Update
Feb 14, 2022ABCSB-2022-151046COVID-19 Response Update
Feb 18, 2022AB-2022-150237Environmental Action Level Exceeded
Feb 22, 2022ABCSB-2022-152955COVID-19 Response Update
Mar 1, 2022ABCSB-2022-154788COVID-19 Response Update
Mar 1, 2022AB-2022-152785Unposted Radiological Hazard
Mar 7, 2022AB-2022-154439Unposted Radiological Hazard
Mar 7, 2022ABCSB-2022-155706COVID-19 Response Update
Mar 11, 2022BB-2022-156474Unposted Radiological Hazard
Mar 14, 2022ABCSB-2022-155710COVID-19 Response Update
Mar 14, 2022CSB-2022-156821Notification of a Change to a Responsible Person not Provided
Mar 15, 2022AB-2022-157318Unit 3 Turbine Trip
Mar 22, 2022ABCSB-2022-160433COVID-19 Response Update
Mar 29, 2022BB-2022-160953Ministry of Labour Event Notice
Mar 29, 2022ABCSB-2022-162104COVID-19 Response Update
Apr 4, 2022ABCSB-2022-163822COVID-19 Response Update
Apr 12, 2022ABCSB-2022-165731COVID-19 Response Update
Apr 13, 2022AB-2022-163092Worker Injured
Apr 19, 2022AB-2022-166800Ministry of Labour Order – April 13, 2022
Apr 20, 2022ABCSB-2022-167355COVID-19 Response Update
Apr 21, 2022BB-2022-165910Periodic Inspection not Completed
Apr 22, 2022BB-2022-165356Shipment Received without Proper Designation and Classification
Apr 22, 2022AB-2022-166775Late Notification of Injury
May 3, 2022BB-2022-169650Ministry of Labour Construction Event Notice – April 27, 2022
May 4, 2022BB-2022-170162Unposted Radiological Hazard
May 5, 2022AB-2022-168021Preventive Maintenance not Completed
May 5, 2022BB-2022-170251Unit 5 Transient due to Turbine Issues
May 10, 2022BB-2022-171273Fire Extinguisher Used on Smouldering Fire Blanket in Unit 6
May 16, 2022AB-2022-171581Radiation Protection Instruments Used when Past Calibration Date
May 17, 2022AB-2022-172136Ministry of Labour Event Notice – May 9, 2022
Jun 1, 2022AB-2022-176886Unit 1 Turbine Trip
Jun 2, 2022ABB-2022-177947Labour Disruption
Jun 20, 2022AB-2022-179923Environmental Release
Jun 28, 2022AB-2022-182844Low Level Positive Personal Air Sample Result
Jun 29, 2022AB-2022-183382Contamination Meter used Past Calibration Date
Jul 4, 2022AB-2022-182751Ministry of Labour Event Notice and Order
Jul 11, 2022BB-2022-185957Ministry of Labour Orders
Jul 14, 2022CSB-2022-186524Impairment of Remote Radiation Monitoring System
Jul 18, 2022CSB-2022-186941Portable Radiation Instrument Calibration Source Import
Jul 22, 2022BB-2022-188711Ministry of Labour Event Notice – July 19, 2022
Jul 25, 2022ABCSB-2022-189073Labour Disruption
Aug 3, 2022BB-2022-189924End Fitting Forging Material Suspect Material Properties Reported by a Vendor
Aug 12, 2022BB-2022-187726Feeder Visual Inspection not Fully Completed during Prescribed Window
Aug 18, 2022AB-2022-193131Below Minimum Shift Complement
Aug 24, 2022AB-2022-194316Environmental Release
Sep 13, 2022BB-2022-199605Unit 6 Bulkheads Alternate Containment Boundary Past Configuration Issue
Sep 14, 2022CSB-2022-199223Ministry of Labour Event Notice
Sep 15, 2022AB-2022-200587Ministry of Labour Event Notice
Sep 19, 2022AB-2022-199228Unit 3 Vault Vapour Recovery Unplanned Configuration
Sep 20, 2022BB-2022-199619Auxiliary Pressure Relief Valve (PRV) Impairment in the East and West PRV Manifolds
Sep 23, 2022BB-2022-202519Below Minimum Shift Complement
Sep 29, 2022AB-2022-204873Impairment of Emergency Coolant Injection System
Oct 7, 2022AB-2022-206662Injury – Bruce A
Oct 13, 2022AB-2022-207841Worker Medical Emergency and Injury
Oct 20, 2022AB-2022-211782Ministry of Labour Orders – October 13, 2022
Oct 24, 2022AB-2022-210979Radiation Measuring Instrumentation Found out of Calibration
Oct 26, 2022BB-2022-212305Periodic Inspection not Completed
Oct 28, 2022BB-2022-212249Ministry of Health and Long Term Care Event Report
Oct 28, 2022BB-2022-212094Environmental Release
Oct 31, 2022AB-2022-211892Ministry of Labour Event Notice
Nov 7, 2022AB-2022-214467Unposted Radiological Hazard
Nov 11, 2022BB-2022-215529Worker Injured
Nov 14, 2022AB-2022-202085Impairment of Negative Pressure Containment
Nov 14, 2022CSB-2022-216369Ministry of Labour Event Notice
Nov 15, 2022CSB-2022-217125Ministry of Labour Event Notice
Nov 17, 2022AB-2022-217958Late Reporting of Impairment of Negative Pressure Containment
Nov 21, 2022AB-2022-218181Standby Class III Power Unavailable Due to Isolation
Nov 24, 2022AB-2022-219421Bruce A Unit 0 Effluent Sample out of Specification
Nov 24, 2022AB-2022-219782Bruce A Unit 4 Effluent Sample out of Specification
Dec 7, 2022AB-2022-224307Ministry of Labour Event Notice
Dec 14, 2022AB-2022-226768Unit 4 Unplanned Reactor Power Change
Dec 21, 2022AB-2022-229537Ministry of Labour Event Notice
Dec 22, 2022AB-2022-226677Unit 3 Shutdown System 1 Post Shutdown Spurious Trip during Lead in to F2233
Dec 23, 2022AB-2022-230383Late Reporting of SDS1 Actuation

Date ReportedStationReport #Title
Jan 6, 2021BB-2021-50492Unit 8 Forced Outage
Jan 7, 2021BB-2021-49813COVID-19 Response Update
Jan 8, 2021BB-2021-50655Below Minimum Complement
Jan 13, 2021BB-2021-51923COVID-19 Response Update
Jan 13, 2021AB-2021-40701Heat Transport Header Pressure Transmitter Calibration Missed
Jan 14, 2021CSB-2021-52667Late Detailed Report
Jan 21, 2021BB-2021-53751COVID-19 Response Update
Jan 21, 2021BB-2021-53735Radioactive Material Shipment Received with Incorrect Record
Jan 22, 2021AB-2021-36972Late Reporting of Change of Status of Certified Personnel
Jan 26, 2021AB-2021-54778Shift Complement Qualification Expired
Jan 28, 2021CSB-2021-55684Late Notification for Transportation Event
Feb 2, 2021AB-2021-56171Unposted Hazard in Fuel Handling Radioactive Material Storage Area
Feb 2, 2021BB-2021-57705COVID-19 Response Update
Feb 3, 2021CSB-2021-57484Delay in Implementation of New Requirement of Radiation Protection Regulations
Feb 4, 2021AB-2021-58453Relief Valve Testing not Completed
Feb 9, 2021BB-2021-59472Fire Extinguished in Unit 6
Feb 9, 2021AB-2021-59987Whole Body Monitor Damaged
Feb 10, 2021AB-2021-59562Potential Unplanned Radiological Uptake
Feb 11, 2021AB-2021-60364COVID-19 Response Update
Feb 17, 2021AB-2021-62735COVID-19 Response Update
Feb 24, 2021AB-2021-64733COVID-19 Response Update
Mar 3, 2021AB-2021-66138Safety System Test not Deferred
Mar 8, 2021AB-2021-48790Past Impairment of the Emergency Boiler Cooling System
Mar 8, 2021AB-2021-68848Late Reporting Emergency Boiler Cooling Unavailability
Mar 15, 2021ABB-2021-68440Low Level Positive Personal Air Sample Results
Mar 22, 2021BB-2021-71315Ministry of Health and Long Term Care Event Report
Mar 30, 2021BB-2021-73228Environmental Release
Apr 6, 2021AB-2021-74212Unit 1 Turbine Trip
Apr 7, 2021AB-2021-75183Low Level Positive Personal Air Sample Result
Apr 9, 2021BB-2021-69550Fire Protection Preventive Maintenance Missed
Apr 9, 2021BB-2021-75817Ministry of Health and Long Term Care Event Report
Apr 13, 2021AB-2021-69568Unit 2 Vault Vapour Recovery Damper Degraded
Apr 13, 2021AB-2021-75964Unit 1 Unplanned Reactor Power Change
Apr 15, 2021BB-2021-76924Notification of Change to the Facility Operation not Provided
Apr 20, 2021BB-2021-77173Ministry of Labour Industrial Event Notice
Apr 21, 2021AB-2021-79259COVID-19 Response Update
Apr 26, 2021CSB-2021-79623Impairment of Remote Radiation Monitoring System
Apr 28, 2021BB-2021-80650Bruce B Switchyard Fire
Apr 28, 2021BB-2021-80404Unit 5 Unplanned Reactor Power Change
May 4, 2021AB-2021-82107Late Reporting of Change of Status of Certified Personnel
May 6, 2021AB-2021-83486Low Level Positive Personal Air Sample Result
May 20, 2021BB-2021-81413Powered Air Purification Respirator Flow Switch Misuse
May 20, 2021ABB-2021-86461Controlled Nuclear Information Sent Outside Bruce Power Local Area Network
May 26, 2021BB-2021-87494Unit 8 Emergency Water System Briefly Unavailable During Testing
May 27, 2021BB-2021-88779COVID-19 Response Update
Jun 1, 2021AB-2021-85217Standby Class III Power Unavailable during Testing
Jun 2, 2021AB-2021-89020COVID-19 Response Update
Jun 10, 2021AB-2021-78857Potential Impact of Legacy Valve Configuration on Shutdown System 1 Performance
Jun 24, 2021AB-2021-95811Confirmatory Sample Result Below Derived Activity Limit
Jun 25, 2021BB-2021-55406Emergency Coolant Injection System Impairment
Jun 30, 2021AB-2021-93819A2131 outage scrape campaign hydrogen equivalent concentration measurements
Jul 5, 2021BB-2021-98077Pressure Tube Surveillance Hydrogen Equivalent Concentration Measurements on Unit Shutdown for MCR
Jul 6, 2021AB-2021-97037Controlled Nuclear Information Exported without a Licence
Jul 7, 2021CSB-2021-97259Below Minimum Shift Complement
Jul 15, 2021ABCSB-2021-93701Pressure Relief Device Test and Repair Reports Filing Non Conformance
Jul 22, 2021AB-2021-100792Unit 4 Digital Control Computer Stall
Jul 27, 2021CSB-2021-101535Ministry of Labour Event Notice
Jul 28, 2021BB-2021-101960Minor Oil Release in Unit 6 Inactive Drainage
Jul 29, 2021AB-2021-102856Relief Valve Testing not Completed
Aug 5, 2021BB-2021-97930Standby Class III Power Temporarily Unavailable
Aug 5, 2021AB-2021-103996Unit 1 Unplanned Reactor Power Change
Aug 11, 2021BB-2021-105100COVID-19 Response Update
Aug 12, 2021AB-2021-104153Emergency Filtered Air Discharge System Charcoal not Replaced Within Committed Timeline
Aug 23, 2021BB-2021-107091Domestic Water Release
Aug 24, 2021BB-2021-108703COVID-19 Response Update
Sep 14, 2021AB-2021-111272Small Fire in Bruce A Unit 0
Sep 20, 2021AB-2021-112546Radiation Device Damaged
Sep 22, 2021BB-2021-114457Ministry of Health and Long Term Care Event Report
Oct 1, 2021AB-2021-109298Safety System Test Scheduling Error
Oct 7, 2021BB-2021-116930Low Level Positive Personal Air Sample Result
Oct 22, 2021BB-2021-121572Mandatory Relief Valve Testing not Completed
Oct 27, 2021BB-2021-121468Radiation Protection Action Level Exceeded
Oct 28, 2021BB-2021-122430Unit 5 Unplanned Reactor Power Change
Nov 2, 2021BB-2021-118818Radiation Protection Action Level Exceeded
Nov 4, 2021BB-2021-124063Radiological Hazard Posting
Nov 8, 2021BB-2021-124939Unposted Radiological Hazard
Nov 11, 2021AB-2021-125808Air Particulate Monitor Used Past Calibration Date
Nov 15, 2021BB-2021-126064Smoke in Unit 6 Vault
Nov 20, 2021BB-2021-129214Ministry of Labour Order – November 16, 2021
Nov 20, 2021CSB-2021-129760Ministry of Labour Event Notice – November 15, 2021
Nov 20, 2021AB-2021-129480Low Level Positive Personal Air Sample Result
Nov 22, 2021AB-2021-122578Missed Safety System Test
Nov 22, 2021BB-2021-129194Environmental Release
Nov 25, 2021AB-2021-129688Unposted Hazard Above Boiler Steam Drums
Nov 29, 2021BB-2021-130152Low Level Positive Personal Air Sample Result
Dec 1, 2021ABB-2021-116582Preventive Maintenance Due Dates Miscalculated
Dec 8, 2021CSB-2021-125146Service Activities Performed on Radiation Device without a Licence
Dec 10, 2021BB-2021-135624Industry Pressure Tube (PT) Surveillance Program – Inlet, Hydrogen Equivalent Concentration Measurements on PT from Unit Shutdown for Major Component Replacement
Dec 13, 2021BB-2021-134093Small Fire Extinguished in Unit 6
Dec 15, 2021BB-2021-135184Class 7 Shipment is in Non-Compliance with Certificate
Dec 16, 2021BB-2021-135523Class 7 Shipment is in Non-Compliance with Regulations for Loose Contamination Levels
Dec 16, 2021BB-2021-137001COVID-19 Response Update
Dec 20, 2021BB-2021-119318Emergency Water System Leak to Emergency Coolant Injection Equipment Area Sump
Dec 21, 2021BB-2021-137691COVID-19 Response Update
Dec 21, 2021AB-2021-137755COVID-19 Response Update
Dec 30, 2021BB-2021-138848Unit 6 Public Address Speaker Found With Foreign Material Inserted

Date ReportedStationReport #Title
Jan 7, 2020AB-2020-28778956Small Fire in Unit 1
Jan 7, 2020AB-2020-28778392Unit 1 Unplanned Reactor Power Change
Jan 9, 2020AB-2020-28779525Late Reporting of Unit 1 Unplanned Reactor Power Change
Jan 16, 2020AB-2020-28779948Building Heating Steam Condensate Release
Jan 20, 2020AB-2020-28779575Preventative Maintenance Calibration Missed
Jan 24, 2020BB-2020-28781683Unit 8 Turbine Trip and Small Turbine Panel Fire
Feb 3, 2020AB-2020-28782099Unit 1 Unplanned Reactor Power Change
Feb 5, 2020BB-2020-28783066Unit 8 Unplanned Reactor Shutdown
Feb 6, 2020AB-2020-28782449Station Emergency Declared as a Precaution
Feb 7, 2020AB-2020-28782855Station Briefly below Minimum Complement
Feb 10, 2020AB-2020-28783019Less Than Minimum Number of Standby Generators Available
Feb 10, 2020AB-2020-28782847Impairment of the Negative Pressure Containment System
Feb 10, 2020AB-2020-28782857Unit 1 Unplanned Reactor Power Change
Feb 14, 2020AB-2020-28783785Bruce A Portal Monitor Alarm above Action Level
Feb 24, 2020BB-2020-28784986Below Minimum Complement
Feb 26, 2020AB-2020-28785357Impairment of Negative Pressure Containment
Mar 3, 2020AB-2020-8786422Bruce A Acute Lethality Test Failure
Mar 11, 2020CSB-2020-28787416Vehicle Monitor Alarm above Action Level at Main Entrance
Mar 16, 2020AB-2020-28787980Loss of Class Ill and Class IV Power to Unit 4 and Unit 0
Mar 19, 2020ABCSB-2020-28788993Precautionary Activation of the Emergency Management Centre for COVID-19 Prevention Planning
Mar 26, 2020BB-2020-28789704MOL Report
Mar 31, 2020AB-2020-28790328Public Address System Speakers Turned off in Outage Trailer
Apr 4, 2020BB-2020-28790729Bruce B Elevated Tritium Levels
Apr 6, 2020BCSB-2020-28791267COVID-19 Response Update
Apr 15, 2020CSB-2020-28789209Controlled Nuclear Information Export without a Licence
Apr 23, 2020ACSB-2020-28793680COVID-19 Response Update
Apr 28, 2020CSB-2020-28793731Ministry of Labour Industrial Event Notice
May 14, 2020AB-2020-28795502Unit 2 Unplanned Shutdown for Generator Excitation System Repairs
May 15, 2020BB-2020-28795368Unit 5 Recovery Tank Upper Flange Gap Discovered
Jun 8, 2020AB-2020-28798234Unit 2 Liquid Zone Control System Pump Trip
Jun 8, 2020AB-2020-28798264Less Than Minimum Number of Standby Generators Available
Jun 15, 2020AB-2020-28799101Elevated Reactor Inner Zone Inlet Header Temperature
Jun 17, 2020BB-2020-28800070Extinguishing Agent Applied to Panel
Jun 19, 2020BB-2020-28799964Domestic Water Release
Jun 26, 2020BB-2020-28800827Fire Protection Preventive Maintenance Missed
Jun 29, 2020BB-2020-28793697Potential Unplanned Radiological Intake
Jun 29, 2020BB-2020-28776624Fuel Bundle Damaged During Discharge from North East Spent Fuel Mechanism
Jul 3, 2020AB-2020-28801676Unit 4 Forced Outage for Low Vacuum Trip Circuit Repairs
Jul 3, 2020AB-2020-1052Unit 3 Forced Outage due to Spurious Activation of Unit Service Transformer Relay Protection
Jul 8, 2020BB-2020-28801698Emergency Water System Valve Discovered Passing
Jul 16, 2020AB-2020-2739Unit 1 Forced Outage due to Grid Rejection
Jul 16, 2020BB-2020-2577Unposted Radiological Hazard
Jul 16, 2020AB-2020-3363Unit 3 Reactor Power Reduction
Jul 16, 2020BB-2020-4089Unit 7 Unplanned Reactor Power Change
Jul 21, 2020AB-2020-4549Unit 1 Vault Vapour Recovery Drier Heater Failure to Shutdown on Demand
Jul 22, 2020CSB-2020-5109Below Minimum Shift Complement
Jul 29, 2020BB-2020-6908Unposted Radiological Hazard
Jul 31, 2020AB-2020-8039Standby Generator Testing
Aug 12, 2020BB-2020-10696Ministry of Health and Long Term Care Event Report
Aug 17, 2020CSB-2020-11945Counterfeit Integrated Circuit Found and Reported by a Vendor
Aug 17, 2020AB-2020-8965Shutdown Systems 1 and 2 Neutron Overpower Protection Detector Bias
Aug 18, 2020BB-2020-11865Ministry of Health and Long Term Care Event Report
Aug 18, 2020ABB-2020-12076Working Remotely Outside of Canada
Aug 18, 2020BB-2020-11521Unit 7 Unplanned Shutdown
Aug 20, 2020CSB-2020-13771Medical Incident at Bruce A Parking Lot
Aug 24, 2020AB-2020-12978Unit 3 Digital Control Computer X Stall
Aug 24, 2020AB-2020-12985Unit 2 Forced Offline Due to Steam Leak
Aug 26, 2020BB-2020-14461Impairment of Negative Pressure Containment
Aug 31, 2020AB-2020-15406Heat Transport Pump Trip Testing Incomplete
Sep 1, 2020AB-2020-15565Unit 3 Unplanned Shutdown
Sep 9, 2020BB-2020-17922Main Firewater Pump Preventative Maintenance Incomplete
Sep 10, 2020AB-2020-18311Safety System Test not Deferred
Sep 10, 2020BB-2020-17885Standby Generator Fire Detection Maintenance Incomplete
Sep 14, 2020BB-2020-18567Fire Extinguished in Unit 6
Sep 14, 2020BB-2020-18764Unit 5 Digital Control Computer X Stall
Sep 14, 2020AB-2020-16659Whole Body Monitor Damaged
Sep 17, 2020AB-2020-19986Safety System Test not Deferred
Sep 24, 2020BB-2020-22484Unit 6 Transformer Deluge Annunciation Test Incomplete
Oct 7, 2020CSB-2020-26480COVID-19 Response Update
Oct 7, 2020AB-2020-25694Unit 1 Unplanned Shutdown
Oct 9, 2020BB-2020-26068Late Reporting of Change of Status of Certified Personnel
Oct 15, 2020AB-2020-28286Unit 2 Unplanned Reactor Power Change
Oct 22, 2020BB-2020-30418Whole Body Monitor Damaged
Oct 23, 2020ABB-2020-21831Incorrect Dose Conversion Factors Used in Irradiated Fuel Port Analysis
Oct 26, 2020AB-2020-31429Unit 3 Annulus Gas System High Flowrate
Nov 2, 2020AB-2020-33557Unit 2 Unplanned Reactor Power Change
Nov 10, 2020BB-2020-35996Radiation Instruments Calibration Overdue
Nov 12, 2020BB-2020-36965COVID-19 Response Update
Nov 12, 2020AB-2020-36798Unposted Radiological Hazard
Nov 16, 2020ABB-2020-37783COVID-19 Response Update
Nov 18, 2020CSB-2020-39011COVID-19 Response Update
Nov 18, 2020AB-2020-33945Controlled Nuclear Information Exported Without Licence
Nov 23, 2020AB-2020-40474Online Periodic Inspection for Emergency Coolant Injection Components Incomplete
Nov 24, 2020BB-2020-40664COVID-19 Response Update
Nov 26, 2020BB-2020-40646Late Reporting of Reinstatement of Certified Personnel
Nov 30, 2020AB-2020-41579Less Than Minimum Number of Standby Generators Available
Dec 1, 2020CSB-2020-42137COVID-19 Response Update
Dec 2, 2020BB-2020-41610Unposted Radiological Hazard
Dec 8, 2020BCSB-2020-43885COVID-19 Response Update
Dec 10, 2020AB-2020-44274Minor Oil Spill in Unit 4 Inactive Drainage
Dec 14, 2020AB-2020-45127Buried Drinking Water Pipe Leak
Dec 16, 2020ABB-2020-46357COVID-19 Response Update
Dec 16, 2020BB-2020-46413Preventative Maintenance for Calibration of Stack Monitors
Dec 17, 2020CSB-2020-45880Ministry of Labour Event Report
Dec 17, 2020AB-2020-46601Unit 4 Turbine Trip
Dec 18, 2020BB-2020-46975Unit 8 Unplanned Reactor Power Change
Dec 18, 2020BB-2020-41524Operating Policies and Principles Containment Tolerable Hole Size Exceeded
Dec 21, 2020BB-2020-47596Shutdown System 2 Trip
Dec 23, 2020AB-2020-48596Misclassification of Transportation Documentation for Class 7 Shipment

Date ReportedStationReport #Title
04-Jan-19BB-2019-28723531Below Minimum Complement
09-Jan-19BB-2019-28723664Demineralized Water Spill
15-Jan-19AB-2019-28724266Improper Use of Personal Protective Equipment
24-Jan-19AB-2019-28722428Test mode for Main Control Room HVAC Logic Disables Pressure Switch Trip
24-Jan-19BB-2019-28726474Domestic Water Category C Spill
28-Jan-19BB-2019-28727237Impairment on SDS1 and SDS2
01-Feb-19CSB-2019-28727652Injured Worker
05-Feb-19AB-2019-28728380Unit 2 Heat Transport Pump Trip System Annual Check Missed
06-Feb-19AB-2019-28720357Seismic Qualification of Emergency Coolant Injection System
12-Feb-19AB-2019-28729924Unit 1 – Unplanned Reactor Power Change
13-Feb-19AB-2019-28728664Unit 3 Confinement Door Found Open During Outage
15-Feb-19AB-2019-28730320Bundle and Tray Location Mismatch to Inventory Data
19-Feb-19BB-2019-28730491MOH Event Report Adverse Water Quality Test Results
19-Feb-19BB-2019-28730349Unit 0 and Unit 7 Loss of Class IV Power
28-Feb-19AB-2019-28732273Impairment of Emergency Coolant Injection System
04-Mar-19CSB-2019-28732204Transportation Event on Bruce Power Site
08-Mar-19BB-2019-28732856Fixed Gaseous Process Monitor Calibration Date Missed
14-Mar-19AB-2019-28728738Pressure Tube to Calandria Tube Contact (PT/CT) Discovered in Unit 3 K20 Fuel Channel
28-Mar-19BB-2019-28736881Public Address Speaker Function Compromised
04-Apr-19ABB-2019-28738708Falsified Record Generated During Third Party Audit
05-Apr-19BB-2019-28737886Sealed Source Separated from Radiological Device and is Unrecoverable
09-Apr-19AB-2019-28738101Bruce A Switchyard Fire
12-Apr-19BB-2019-28739399Unit 5 Forced Outage
17-Apr-19BB-2019-28740313Transportation Package Damaged
17-Apr-19AB-2019-28731940Units 1&2-Operating outside Doc.Basis for NOP at Current Age
18-Apr-19AB-2019-28738876Less Than Minimum Number of Standby Generators Available
23-Apr-19AB-2019-28740556Below Minimum Complement
24-Apr-19BB-2019-28740626Late Reporting of Damaged Transportation Package
26-Apr-19AB-2019-28740942Unposted Radiological Hazard
01-May-19BB-2019-28742395Portable Alarming Gamma Meter Calibration Overdue
02-May-19BB-2019-28742665Unit 8 Unplanned Reduction in Reactor Power
08-May-19AB-2019-28743293Unit 4 Unplanned Reactor Power Change
13-May-19AB-2019-28744082Bruce A Elevated Tritium Levels
13-May-19CSB-2019-28711733Inaccurate Reporting of Non-Bruce Power Dose History
14-May-19AB-2019-28744275Unit 2 Unplanned Reactor Shutdown
16-May-19BB-2019-28745232Aluminium Content in Containment Resulting in ECIS Impairment
17-May-19AB-2019-28744904Unit 2 Unplanned Reactor Shutdown
24-May-19BB-2019-28745942Unposted Radiological Hazard
27-May-19BB-2019-28745990Unposted Radiological Hazard in Ancillary Service Building
30-May-19BB-2019-28746338Damaged Transportation Package
05-Jun-19AB-2019-28747564Unit 1 Unplanned Reactor Power Change
13-Jun-19CSB-2019-28749372MOL Report
14-Jun-19AB-2019-28749061Bruce A Unit 0 Partial Loss of Class III and Class IV Power
18-Jun-19AB-2019-28749389Potential Unplanned Radiological Uptake
25-Jun-19BB-2019-28750516Relief Valve Testing not Completed
27-Jun-19AB-2019-28750810Shipment is in Non-Compliance with Certificate
03-Jul-19BB-2019-28751537Suspect Items Incident
05-Jul-19AB-2019-28744717Impairment of Shutdown Systems 1 and 2
11-Jul-19CSB-2019-28752743Damaged Transportation Package
15-Jul-19BB-2019-28752191Bruce B Containment Quarterly Leak Rate Testing
16-Jul-19BB-2019-28738638Guaranteed Device Found Failed in Incorrect Position
16-Jul-19AB-2019-28753353West Shift Plus Stop Collar Testing Review
17-Jul-19AB-2019-28753291Impairment of Shutdown Systems 1 and 2
26-Jul-19AB-2019-28754895Unit 2 Shutdown System 1 Trip
26-Jul-19BB-2019-28754932Whole Body Monitor Damaged
30-Jul-19BB-2019-28755902Unit 7 Unplanned Reactor Power Change
31-Jul-19AB-2019-28755959Unit 4 Annulus Gas System Unavailability
01-Aug-19AB-2019-28756810MOH Event Report Adverse Water Quality Test Results
02-Aug-19AB-2019-28756092Unposted Radiological Hazard
12-Aug-19BB-2019-28757049Concurrent Unavailability of Two Standby Generators
14-Aug-19BB-2019-28757283Sanitary Main Failure
19-Aug-19BB-2019-28758250Impairment of Emergency Power System
23-Aug-19AB-2019-28757627Unit 4 – Bruce A Pumphouse Chlorine Spill during Zebra Mussel Chlorination
26-Aug-19BB-2019-28757857Unit 7 Periodic Inspection for Primary Heat Transport System Pump Bellows
28-Aug-19AB-2019-28759128Bruce A Negative Pressure Containment Predicted Future Unavailability Over Target
23-Sep-19AB-2019-28763510Unit 1 Unplanned Reactor Power Change
26-Sep-19BB-2019-28764357Potential Seismic Interaction in Low Speed Drive Rooms
26-Sep-19AB-2019-28764170Late Reporting of Change of Status of Certified Personnel
Oct 8, 2019BB-2019-28766644Impairment of Annulus Gas System
Oct 16, 2019BB-2019-28767306Motor Vehicle Carrying Radioactive Material Involved in Off-site Accident
Oct 16, 2019BB-2019-28766989Potential Unplanned Radiological Uptake
Oct 21, 2019BB-2019-28768255Non-compliance with Regulatory Document RD-204
Oct 29, 2019BB-2019-28769461Unposted Radiation Hazard
Nov 1, 2019AB-2019-28770014Unit 2 Unplanned Reactor Power Change
Nov 15, 2019AB-2019-28772723Less Than Minimum Number of Standby Generators Available
Nov 19, 2019BB-2019-28769549Unit 8 Emergency Water System Unavailable
Nov 20, 2019BB-2019-28773979Late reporting of Reg. Doc. 3.1.1 report for EWS unavailable
Nov 20, 2019AB-2019-28772408Primary Heat Transport System Component Not Meeting Its Defined Specifications
Nov 21, 2019BB-2019-28773848Predefined Maintenance Exceeded Probabilistic Safety Assessment Modelled Frequency
Nov 21, 2019BB-2019-28767704Testing of Smoke Detection Devices Not Completed
Nov 22, 2019AB-2019-28773607Standby Generators Testing
Nov 27, 2019BB-2019-28774228Unit 5 Buce B Hydrazine Release
Dec 6, 2019BB-2019-28775787Unposted Radiological Hazard
Dec 11, 2019AB-2019-28776250Unposted Radiological Hazard
Dec 12, 2019BB-2019-28776680MOH Event Report Adverse Water Quality Test Results
Dec 16, 2019AB-2019-28774609Periodic Inspection Minimum Sample Size not Met
Dec 16, 2019AB-2019-28776874Small Fire Near Shutdown Cooling Chemical Addition Tank
Dec 17, 2019BB-2019-28776624Fuel Bundle Damaged During Discharge from North East Spent Fuel Mechanism
Dec 19, 2019AB-2019-28775088Emergency Air Conditioning System Impairment
Dec 20, 2019BB-2019-28778334Predefined Maintenance Exceeded Probabilistic Safety Assessment Modelled Frequency