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Project Bruce C Nuclear Project

  • Location (Municipality of Kincardine, Ontario)
  • Assessment Type: Integrated assessment by Review Panel
  • Status: In progress
  • Reference Number: 88771
  • Last Modified: 2026-06-16
  • Relevance: 223285.96
  • Bruce Power is proposing the site preparation, construction, operation and decommissioning of a new nuclear generating station within the existing Bruce Power nuclear power site, located in the Municipality of Kincardine, Ontario.As proposed, the Bruce C Nuclear Project would provide up to 4,800 megawatt-electric of new nuclear generating capacity in Ontario and operate for 60 to 100 years.Several nuclear reactor technologies will be considered for the project.

Project New Nuclear at Wesleyville Project

  • Location (Port Hope, Ontario)
  • Assessment Type: Planning Phase for Impact Assessment
  • Status: In progress
  • Reference Number: 89802
  • Last Modified: 2026-07-10
  • Relevance: 208108.03
  • As proposed, the New Nuclear at Wesleyville Project would provide up to 10,000 megawatts of new nuclear generating capacity and operate for 78 years.Several nuclear reactor technologies will be considered for the project.The project assessment and initial licence application review are being conducted in collaboration with the Canadian Nuclear Safety Commission.

Project Peace River Nuclear Power Project

  • Location (Peace River, Alberta)
  • Assessment Type: Integrated assessment by Review Panel
  • Status: In progress
  • Reference Number: 89430
  • Last Modified: 2026-05-21
  • Relevance: 202781.15
  • Energy Alberta is proposing the construction of up to four nuclear reactors, located approximately 30 kilometres north of the Town of Peace River, Alberta.As proposed, the Peace River Nuclear Power Project would cover 1,424 hectares in area and operate for approximately 70 years.The project assessment is being conducted in collaboration with the Canadian Nuclear Safety Commission.

Project Nuclear Power Demonstration Closure Project

  • Location (Rolphton, Ontario)
  • Assessment Type: Environmental assessment under CEAA 2012
  • Status: In progress
  • Reference Number: 80121
  • Last Modified: 2026-06-26
  • Relevance: 187811.19
  • Canadian Nuclear Laboratories (CNL) is proposing to decommission the Nuclear Power Demonstration Waste Facility, a former nuclear generating station that operated until 1987.Under the Nuclear Safety and Control Act, CNL's proposal requires an amendment to its existing Decommissioning Waste Facility Licence issued by the Canadian Nuclear Safety Commission (CNSC).

Project Deep Geological Repository (DGR) for Canada's Used Nuclear Fuel Project

  • Location (43 km northwest of Ignace, Ontario)
  • Assessment Type: Impact assessment by Review Panel
  • Status: In progress
  • Reference Number: 88774
  • Last Modified: 2026-07-07
  • Relevance: 172767.08
  • The Nuclear Waste Management Organization (the NWMO) is proposing a new underground deep geological repository system designed to safely contain and isolate used nuclear fuel.As proposed, the Deep Geological Repository (DGR) for Canada's Used Nuclear Fuel Project would be a permanent repository for approximately 5.9 million bundles of used nuclear fuel.The project assessment is being conducted in collaboration with the Canadian Nuclear Safety Commission.

Project Request for a Strategic Assessment on In Situ Decommissioning of Nuclear Facilities in Canada

  • Location (Canada-wide)
  • Assessment Type: Request for designation not applicable
  • Status: Completed
  • Reference Number: 81388
  • Last Modified: 2025-06-13
  • Relevance: 151844.01
  • The Minister of Environment and Climate Change received a request for a strategic assessment on in situ decommissioning of nuclear facilities in Canada.The requester indicated that in situ decommissioning of nuclear facilities is a proposed potential practice in Canada.

Project Decommissioning of the Gentilly-1 Waste Facility Project

  • Location (Bécancour, Quebec)
  • Assessment Type: Request for designation not applicable
  • Status: Completed
  • Reference Number: 90350
  • Last Modified: 2026-04-15
  • Relevance: 144309.38
  • Canadian Nuclear Laboratories is proposing a project to decommission the Gentilly-1 Waste Facility in Bécancour, Quebec.The facility includes a partially decommissioned and permanently shutdown prototype nuclear reactor and supporting structures.The designation request is for phase 3 and for the transport of nuclear waste.

Project Decommissioning of the Gentilly-1 Waste Facility

  • Location (The G1WF site is located near Bécancour, Quebec., Quebec)
  • Assessment Type: Project on federal lands
  • Status: In progress
  • Reference Number: 90092
  • Last Modified: 2026-04-27
  • Relevance: 142405.32
  • Canadian Nuclear Laboratories (CNL) is proposing the decommissioning of the Gentilly-1 Waste Facility (G1WF), which consists of a permanently shut down, partially decommissioning prototype nuclear reactor and support structures.As per the Nuclear Safety and Control Act, CNL has applied to the Canadian Nuclear Safety Commission (CNSC) for an amendment to the existing licence, which would authorize CNL to proceed with the last phase of decommissioning activities at the G1WF.

Project Canadian Nuclear Laboratories, Nuclear Power Demonstration Waste Facility Modification to Building Crawl Space

  • Location (Canadian Nuclear Laboratories, Nuclear Power Demonstration Waste Facility, Rolphton, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Terminated
  • Reference Number: 81000
  • Last Modified: 2020-10-27
  • Relevance: 130454.41
  • The Nuclear Power Demonstration Waste Facility (NPDWF), owned by Atomic Energy of Canada Limited (AECL) and managed by the Canadian Nuclear Laboratories (CNL), is currently being maintained in a safe shut down state, in preparation for eventual decommissioning.

Project Deep Geologic Repository Project for Low and Intermediate Level Radioactive Waste

  • Location (Bruce Nuclear Site, Ontario)
  • Assessment Type: Environmental assessment by Review Panel under CEAA 2012
  • Status: Terminated
  • Reference Number: 17520
  • Last Modified: 2021-09-15
  • Relevance: 130099.66
  • The project is a proposal by Ontario Power Generation (OPG) to prepare, construct and operate a deep geologic disposal facility on the Bruce Nuclear Site within the municipality of Kincardine, Ontario.The DGR would be designed to manage low and intermediate waste produced from the continued operation of OPG-owned nuclear generations at Bruce, Pickering and Darlington, Ontario.

Project Micro Modular Reactor Project

  • Location (Chalk River, Ontario)
  • Assessment Type: Environmental assessment under CEAA 2012
  • Status: In progress
  • Reference Number: 80182
  • Last Modified: 2025-03-27
  • Relevance: 128432.18
  • Global First Power is proposing the site preparation, construction, operation, and decommissioning of a Micro Modular Reactor nuclear plant at the Chalk River Laboratories site, in Renfrew County, Ontario, approximately 200 km northwest of Ottawa.The project requires an environmental assessment under the Canadian Environmental Assessment Act, 2012, and approval by the Canadian Nuclear Safety Commission for a licence under the Nuclear Safety and Control Act in order for the proposed project to proceed.However, before the Canadian Nuclear Safety Commission can consider making a decision on issuing a licence, an environmental assessment decision affirming that the proposed activities will not cause significant adverse environmental effects is required.

Project Canadian Nuclear Laboratories Upgraded Electrical Services

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 80771
  • Last Modified: 2021-01-12
  • Relevance: 123131.43
  • Upgraded Electrical Services In order to support the ongoing Waste Management Operations at Canadian Nuclear Laboratories (CNL), Chalk River site, an upgrade to the existing electrical system that supports the Waste Management Area is necessary.This work will provide the power necessary to support the ongoing Waste Management Operations at Canadian Nuclear Laboratories (CNL), Chalk River site.

Project In Situ Decommissioning of the Whiteshell Reactor #1

  • Location (Pinawa, Manitoba)
  • Assessment Type: Environmental assessment under CEAA 2012
  • Status: In progress
  • Reference Number: 80124
  • Last Modified: 2025-09-02
  • Relevance: 120457.63
  • Canadian Nuclear Laboratories (CNL) is proposing to decommission the Whiteshell Reactor #1 (WR-1 Reactor), a former nuclear research reactor that operated until 1985.Under the Nuclear Safety and Control Act, CNL's proposal requires an amendment to its existing Decommissioning Waste Facility Licence issued by the Canadian Nuclear Safety Commission (CNSC).

Project Canadian Nuclear Laboratories Access Road Upgrade

  • Location (Canadian Nuclear Laboratories, Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 81243
  • Last Modified: 2021-02-02
  • Relevance: 118972.8
  • In support of ongoing operations at the Canadian Nuclear Laboratories (CNL), the upgrade of an existing road is proposed at the Atomic Energy of Canada (AECL), Chalk River Laboratories (CRL) site.To help inform a determination under section 82 of the Impact Assessment Act 2019 (IAA 2019) in relation to the Access Road Upgrade at the Chalk River Laboratories, Canadian Nuclear Laboratories (CNL) is inviting comments from the public.  Canadian Nuclear Laboratories (CNL) is responsible for the management and operations of AECL's sites, including the Chalk River Laboratories site, under a Government-owned, Contractor-operated arrangement.

Project Canadian Nuclear Laboratories Cask Facility Project

  • Location (Canadian Nuclear Laboratories, Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 81139
  • Last Modified: 2021-01-05
  • Relevance: 116573.44
  • In support of ongoing operations at Canadian Nuclear Laboratories (CNL), the construction of a Cask Facility is proposed at the Atomic Energy of Canada (AECL), Chalk River Laboratories (CRL) site.  Canadian Nuclear Laboratories Ltd is responsible for the management and operations of AECL's sites, including the CRL site, pursuant to a long-term contractual arrangement.

Project Canadian Nuclear Laboratories Nuclear Power Demonstration Waste Facility: Modification to Crawl Space

  • Location (Canadian Nuclear Laboratories, Nuclear Power Demonstration Waste Facility, Rolphton, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 81427
  • Last Modified: 2021-04-08
  • Relevance: 115294
  • The Nuclear Power Demonstration Waste Facility (NPDWF), owned by Atomic Energy of Canada Limited (AECL) and managed by Canadian Nuclear Laboratories (CNL), is currently being maintained in a safe shut down state, in preparation for eventual decommissioning.

Project Canadian Nuclear Laboratories Material Pit Expansion Project

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 81209
  • Last Modified: 2021-02-16
  • Relevance: 113467.05
  • In support of ongoing operations at the Canadian Nuclear Laboratories (CNL), the Chalk River Laboratories (CRL) site maintains a spoils and material processing pit that houses fill and material extracted from within the site.

Project Near Surface Disposal Facility Project

  • Location (Deep River, Ontario)
  • Assessment Type: Environmental assessment under CEAA 2012
  • Status: In progress
  • Reference Number: 80122
  • Last Modified: 2024-05-24
  • Relevance: 111550.59
  • The engineered mound would be cellular, made up of multiple disposal cells consisting of: base liner and final cover systems leachate collection and leak detection systems environmental monitoring systems The proposed project would also include: a wastewater treatment plant supporting infrastructure, such as a truck wheel wash, vehicle monitoring and weighing stations, work stations and change facilities, security systems to monitor access and egress, construction trailers, and marine containers or tents for storage of construction materials Under the Nuclear Safety and Control Act, CNL's proposal requires approval by the Canadian Nuclear Safety Commission (CNSC) and involves an amendment to the Chalk River Laboratories (CRL) Nuclear Research and Test Establishment Operating Licence.

Project Canadian Nuclear Laboratories Contractor Management Trailer Complex

  • Location (Canadian Nuclear Laboratories, Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 80529
  • Last Modified: 2021-01-12
  • Relevance: 106052.45
  • Contractor Management Trailer Complex The proposed Project involves the site preparation and installation of a modular office trailer complex to support the newly formed Site Integration Office at Canadian Nuclear Laboratories (CNL), Chalk River site.  Canadian Nuclear Laboratories Ltd is responsible for the management and operations of AECL's sites, including the CRL site, pursuant to a long-term contractual arrangement.

Project Canadian Nuclear Laboratories Intermediate Level Waste Storage Area

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 81177
  • Last Modified: 2021-02-16
  • Relevance: 103924.82
  • In support of ongoing operations at the Canadian Nuclear Laboratories (CNL), the construction of an Intermediate Level Waste (ILW) Storage Facility is proposed at the Atomic Energy of Canada (AECL), Chalk River Laboratories (CRL) site.

Project Canadian Nuclear Laboratories Waste Management Area Modification Project

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 81389
  • Last Modified: 2021-03-24
  • Relevance: 103536.08
  • In support of ongoing operations at Canadian Nuclear Laboratories (CNL), the modification of a Waste Management Area is being proposed at the Atomic Energy of Canada Limited's Chalk River Laboratories site.

Project Canadian Nuclear Laboratories Multi-Purpose Waste Handling Facility

  • Location (Chalk River Laboratories, Chalk River On, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 81443
  • Last Modified: 2021-05-05
  • Relevance: 103478.81
  • In support of ongoing operations at Canadian Nuclear Laboratories (CNL), the construction of two new multi-purpose waste handling facilities are proposed at Atomic Energy of Canada Limited's Chalk River Laboratories site to process and store Low Level Waste (LLW) and Intermediate Level Waste (ILW).

Project Waste Management Area Office Complex

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 83367
  • Last Modified: 2022-08-04
  • Relevance: 100534.5
  • Waste Management Area Office Complex - Candian Nuclear Laboratories  In support of ongoing operations at Atomic Energy of Canada Limited's (AECL) Chalk River Laboratories, which are operated and managed by Canadian Nuclear Laboratories (CNL), the construction of an office trailer complex is being proposed.

Project Modernized Combined Electrolysis and Catalytic Exchange

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: In progress
  • Reference Number: 85759
  • Last Modified: 2024-01-29
  • Relevance: 100108.56
  • The associated project activities will be carried out by Canadian Nuclear Laboratories (CNL), the organization responsible for the operations of all AECL sites, including the Chalk River Laboratories (CRL) site where this project is proposed.By processing used heavy water through the CECE, CNL will be able to recycle the materials, with potential reuse in the nuclear and other industries.As such, the proposed MCECE will require physical design and layout considerations that meet the requirements of the Class I Nuclear Facilities Regulations, which include but are not limited to, hazard identification and safety analysis, deterministic analysis of the effects of the environment on the facility (e.g. extreme weather) and the effects from malfunctions within the process facility.

Project Refurbishment and Continued Operation of the Darlington Nuclear Generating Station

  • Location (Darlington, Ontario)
  • Assessment Type: Screening-type assessment under CEAA 1992
  • Status: Completed
  • Reference Number: 62516
  • Last Modified: 2019-09-24
  • Relevance: 93084.4
  • Ontario Power Generation (OPG) is proposing the refurbishment of the four reactors at the Darlington Nuclear Generating Station and the continued operation of each reactor for a period of approximately 30 years following refurbishment.

Project Telecommunications and Carrier Services Main Point of Presence Project

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 81645
  • Last Modified: 2021-08-31
  • Relevance: 83062.57
  • In support of ongoing operations at the Canadian Nuclear Laboratories (CNL) the Telecommunications and Carrier Services Main Point of Presence (MPOP) Project is proposing the installation of approximately 7 km of new fibre-optic cables and copper line at CNL's Atomic Energy of Canada Limited's Chalk River Laboratories (CRL) location.

Project Centralized Laydown Area

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 84311
  • Last Modified: 2023-07-14
  • Relevance: 67504.46
  •   The associated project activities will be carried out by Canadian Nuclear Laboratories (CNL), the organization responsible for the management and operations of all AECL sites, including the Chalk River Laboratories (CRL) site where this project is proposed.

Project Canadian Nuclear Laboratories Geotechnical Investigation Project

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Terminated
  • Reference Number: 82877
  • Last Modified: 2023-07-04
  • Relevance: 67433.37
  • Geotechnical investigation is required to support the site selection process for a support facility at Atomic Energy of Canada Limited's (AECL) Chalk River Laboratories site.  The locations being assessed for the proposed facility are comprised of undisturbed federal land located in close proximity to other existing facilities at the Chalk River Laboratories.  Site preparation activities will include localized vegetation clearing to facilitate access.  The geotechnical ...

Project Best Theratronics Class 1B Licence Application

  • Location (Ottawa, Ontario)
  • Assessment Type: Environmental assessment under CEAA 2012
  • Status: Terminated
  • Reference Number: 80022
  • Last Modified: 2014-04-03
  • Relevance: 63697.16
  • The Canadian Nuclear Safety Commission (CNSC) has received a licence application from Best Theratronics Ltd.BTL would require undertaking the following activities: Retrofitting the building interior to add a shielding bunker for cyclotron testing up to 70 MeV; Adding safety and security devices to areas of the facility (Cells 1 through 3) that would be used for testing linear accelerators up to 25 MeV CNSC authorization, in the form of a new Class 1B licence, is required for BTL to carry out their proposed activities, as per subsection 24(2) of the Nuclear Safety and Control Act (NSCA).

Project The Ottawa Hospital New Campus Development - Phase 3 (Central Utility Plant) and Phase 4 (Hospital)

  • Location (903 Carling Avenue, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 86019
  • Last Modified: 2024-04-03
  • Relevance: 56999.57
  • Canadian Nuclear Safety Commission (CNSC): The CNSC will have oversight of the hospital's proposed nuclear medicine program when the hospital is in operation.A license under the Nuclear Safety and Control Act will be required and the program will undergo regulatory review by CNSC staff prior to operation.For more information on the CNSC's licensing process and how nuclear substances or facilities are regulated, please visit the CNSC's website.

Project Hydro-vac Dewatering Station

  • Location (Chalk River Nuclear Laboratories, Chalk River Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 84309
  • Last Modified: 2023-04-05
  • Relevance: 56949.53
  •   The project, in support of the management of legacy waste will be carried out by Canadian Nuclear Laboratories (CNL), the organization responsible for the management and operations of all AECL's sites, including the Chalk River Laboratories (CRL), where this project is being proposed.

Project Key Lake Extension Project

  • Location (Key Lake, Saskatchewan)
  • Assessment Type: Screening-type assessment under CEAA 1992
  • Status: Completed
  • Reference Number: 55518
  • Last Modified: 2014-09-11
  • Relevance: 52816.95
  • The Canadian Nuclear Safety Commission (CNSC) has received a project description from Cameco Corporation (Cameco) to extend the lifespan of the Key Lake milling operation in northern Saskatchewan by undertaking a variety of extension activities all within the area of the surface lease.This requires an amendment to Cameco's Uranium Mill Operating Licence, pursuant to subsection 24(2) of the Nuclear Safety and Control Act (NSCA).

Project Canadian Nuclear Laboratories Service Line Repair Project

  • Location (Chalk River Nuclear Laboratories Ltd., Chalk River, Ontario, Ontario)
  • Assessment Type: Project on federal lands
  • Status: Completed
  • Reference Number: 83039
  • Last Modified: 2022-06-22
  • Relevance: 47943.54
  • In support of ongoing operations at Atomic Energy of Canada Limited's (AECL) Chalk River Laboratories (CRL) site, physical activities need to be undertaken to replace a section of approximately 85 metres of buried service airline that requires replacement. The airline is located on previously disturbed land and where there is potential for soil contamination to be present.  Portions of asphalt will be removed to facilitate the excavation, but no vegetation clearing will be required. ...

Archive Nanticoke New Nuclear Power Plant Project (Archived)

  • Location (Nanticoke, Ontario)
  • Assessment Type: Environmental assessment by Review Panel under CEAA 1992
  • Status: Terminated
  • Reference Number: 08-05-43757
  • Last Modified: 2008-11-10
  • Relevance: 44829.05
  • Archived - Nanticoke New Nuclear Power Plant Project Nanticoke (ON) Reasons for a Federal Assessment Project Description Final Decision Reference Number Canadian Environmental Assessment Registry: 08-05-43757 Environmental Assessment Type Panel Responsible or Regulated Authorities Canadian Nuclear Safety Commission Transport Canada Reasons for a Federal Assessment On November 10, 2008, it was determined that an environmental assessment was required in relation to the project because the Canadian Nuclear Safety Commission considered taking action in relation to subsection 24(2) of the Nuclear Safety and Control Act and Transport Canada considered taking action in relation to section 5 of the Navigable Waters Protection Act.Project Description (as posted in the Notice of Commencement) The Canadian nuclear Safety Commission (CNSC) has received a project description from Bruce Power Erie for the construction and operation of up to two new nuclear reactors at the Lake Erie Industrial Park at Nanticoke for the production of approximately 2,200 to 3,200 MWe of electrical generating capacity for supply to the Ontario grid.The scope of Bruce Power Erie's proposal includes preparation of the site, construction, operation, refurbishment if required, and eventual decommissioning and abandonment of the two new nuclear power reactors.

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