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Event Reports

Tracking and trending the events reported to the Canadian Nuclear Safety Commission that occur in our plant is just one means Ontario Power Generation (OPG) uses to identify trends requiring corrective or preventative action.

OPG Nuclear invests significant time and resource into our Corrective Action Program to ensure all observations by our staff, not only those that require reporting to the regulator, are captured, investigated and tracked for remediation.

The events reported to our regulator, as outlined in these documents, represent activities related to a fraction of the many thousands of tasks undertaken successfully in our stations by employees every year in our commitment to generating safe, clean electricity. Each one of these reports is thoroughly reviewed with the appropriate OPG staff and with the regulator to ensure they are addressed.

For a list of titles of all our 2011, 2010 and 2009 Event Reports (also known as S-99s) click to download a PDF from the list below.


Questions? For more information on the Event Reports listed, Event Reports from prior years or other reports on OPG’s operations, contact: Jacquie Hoornweg, Vice President, Public Affairs at 416-592-6806.




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