Restart of Bruce Nuclear Generation Station ‘A' Units 3 and 4

Environmental assessment start date : September 11, 2001
Type : Screening
FEAI reference number : 29271
Proponent : Bruce Power Inc.
Location : Tiverton, Ontario

Latest Update

• April 2005 - 2004 Annual Monitoring Report, Bruce A Units 3 & 4 Restart, Environmental Assessment Follow-up Program
• August 1, 2003 - Availability of the Whitefish Follow-up Workplan for the Environmental Assessment of the Bruce Nuclear Generating Station A Units 3 and 4 Restart
• June 20, 2003 - Availability of Follow-Up Program Documentation for the Environmental Assessment of the Bruce Nuclear Generating Station A Units 3 and 4 Restart
• January 6, 2003 - CNSC announces decisions concerning Bruce Power Inc.'s Bruce Nuclear Generating Station A
• September 30, 2002 - Request for Public Comment on Draft Screening Report: Comment Period Closed
• September 20, 2002 - Notice - Public Hearing - December 12, 2002
• August 15, 2002 - Request for Public Comment on Draft Screening Report
• April 5, 2002 - News Release - CNSC announces decision on environmental assessment guidelines for the proposed restart of Units 3 and 4 at Bruce ‘A' Nuclear Generating Station
• January 11, 2002 - Notice - Public Meeting - March 1, 2002 - ref. 2002-M-2
• December 3, 2001 - Request for public comment on the draft environmental assessment guidelines

Project Description

The Canadian Nuclear Safety Commission (CNSC) has received notice from Bruce Power Inc. of its intent to apply for a licence amendment to restart Bruce Nuclear Generation Station (NGS) ‘A' Units 3 and 4.

The Units are currently in a defuelled guaranteed shutdown state. As a condition of its current licence, Bruce Power Inc. must obtain approval from the Commission before the reactors can be loaded with fuel and operated at power.

Before the Commission makes its decision on Bruce Power Inc.'s licence amendment application, an environmental assessment must be completed in compliance with the Canadian Environmental Assessment Act. The purpose of an environmental assessment is to identify the possible environmental effects of a proposed project, and determine whether these effects can be mitigated before the project is allowed to proceed.

The restart project consists of the following elements:

• activities required to refuel Units 3 and 4;
• activities required to allow Units 3 and 4 to be brought to operational status; and
• continued generation of power by Units 3 and 4 over their planned operational life.

No new construction activities will be undertaken for this project, and no changes to existing approved waste management practices have been proposed.

Further Information

CNSC maintains a public registry of documents related to its Environmental Assessments. Lists and copies of documents may be obtained upon request. For questions or information related to the environmental assessment of this project, please contact:

For questions or information directly related to the environmental assessment of this project, contact the CNSC.

CNSC regulates the use of nuclear energy and materials to protect health, safety, security and the environment and to respect Canada's international commitments on the peaceful use of nuclear energy.