Nuclear Power Demonstration Site Closure Project more information on this project contact Email...
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For more informaon on this project contact: Email: [email protected] Canadian Nuclear Laboratories 1-866-886-2325 or visit: www.cnl.ca Nuclear Power Demonstration Site Closure Project PROJECT BACKGROUND The 20 MW Nuclear Power Demonstraon (NPD) reactor was Canada’s first nuclear power reactor to supply electricity to the electrical distribuon grid. NPD began operaons in 1962 and served as an important training facility for future reactor engineers and operators. In 1988, following permanent shutdown of the reactor, and removal of the fuel and power generang equipment from the site, Ontario Hydro transferred the responsibility of monitoring and licensing of NPD to Atomic Energy of Canada Limited (AECL). The NPD site is located on the south bank of the Oawa River near the town of Rolphton Ontario, roughly three kilometres downstream from the Des Joachims Generang Staon and approximately 25 km upstream from the Chalk River Laboratories (CRL). The NPD site currently consists of a limited number of structures and several temporary structures which are being added to support the decommissioning project work. THE STATUS OF NPD’S DECOMMISSIONING At the me of NPD shutdown, deferred decommissioning was the preferred strategy for management of the reactor and the associated systems. The deferment period has allowed a significant reducon of radiaon fields within the facility, which helps to reduce the risks to staff working on the closure project. The NPD site is now in an ideal strategic posion for compleon of the remainder of the site decommissioning. The closure project will safely reduce Canada’s nuclear legacy liabilies at this property. PROJECT GOAL To safely decommission the NPD site by 2020, thereby reducing long term nuclear liabilities.
Transcript of Nuclear Power Demonstration Site Closure Project more information on this project contact Email...
For more information on this project contact: Email: [email protected]
Canadian Nuclear Laboratories 1-866-886-2325 or visit: www.cnl.ca
Nuclear Power Demonstration Site Closure Project
PROJECT BACKGROUNDThe 20 MW Nuclear Power Demonstration (NPD) reactor was Canada’s first nuclear power reactor to supply electricity to the electrical distribution grid. NPD began operations in 1962 and served as an important training facility for future reactor engineers and operators. In 1988, following permanent shutdown of the reactor, and removal of the fuel and power generating equipment from the site, Ontario Hydro transferred the responsibility of monitoring and licensing of NPD to Atomic Energy of Canada Limited (AECL).
The NPD site is located on the south bank of the Ottawa River near the town of Rolphton Ontario, roughly three kilometres downstream from the Des Joachims Generating Station and approximately 25 km upstream from the Chalk River Laboratories (CRL).
The NPD site currently consists of a limited number of structures and several temporary structures which are being added to support the decommissioning project work.
THE STATUS OF NPD’S DECOMMISSIONINGAt the time of NPD shutdown, deferred decommissioning was the preferred strategy for management of the reactor and the associated systems. The deferment period has allowed a significant reduction of radiation fields within the facility, which helps to reduce the risks to staff working on the closure project. The NPD site is now in an ideal strategic position for completion of the remainder of the site decommissioning.
The closure project will safely reduce Canada’s nuclear legacy liabilities at this property.
PROJECT GOALTo safely decommission the NPD site by 2020, thereby reducing long term nuclear liabilities.
For more information on this project contact: Email: [email protected]
Canadian Nuclear Laboratories 1-866-886-2325 or visit: www.cnl.ca
Date of Issue: June 2016
THE PLANThe plan is to remediate the NPD site. Execution of the plan involves a thorough environmental assessment as well as a licence amendment to perform decommissioning activities. This will include the development of detailed decommissioning plans, safety analysis, an environmental impact statement, a decommissioning strategy, a waste management plan and characterization of the site.
CNL proposes to decommission NPD through an in-situ decommissioning process. In-situ decommissioning will use tailored grout recipes to create a robust below surface concrete monolith. This area will then be capped with an engineered barrier. The end
state is to encase radioactivity in a stable, proven form to allow for continued decay with long-term care and maintenance activities for an agreed to period.
DECOMMISSIONING ACTIVITIES• Assembly and operation of the
grout batch mixing plant
• Grouting of below grade structures
• Removal of above grade structures to be used as backfill
• Installation of concrete cap and engineered barrier over the grouted area
• Final site restoration
• Preparation for long-term care and maintenance activities
