V17 • I02 • FEBRUARY 2022
Canadian Nuclear Laboratories
VOYAGEUR
‘THE RIGHT SOLUTION FOR THIS WASTE’ CNL delegation participates in Part 1 of the CNSC’s hearing for NSDF project
A big milestone for the NSDF Project is now in the rearview mirror! On February 22, a delegation from CNL participated in Part 1 of the Canadian Nuclear Safety Commission’s (CNSC) hearing for the proposed Near Surface Disposal Facility (NSDF) project, where oral submissions on the facility were presented by CNL and CNSC staff. Among other participants, the delegation included Joe McBrearty, CNL’s President and CEO; Meggan Vickerd, CNL’s General Manager of Waste Services; and Phil Boyle, CNL’s Chief Nuclear Officer and Vice-President of Central Technical Authority. Joe, Meggan and Phil all delivered prepared remarks discussing the safety and the viability of the project, before the entire delegation responded to questions from CNSC Commission members. “The scientific breakthroughs that have been achieved at Chalk River have brought immense benefits to Canada,” commented Mr. McBrearty, during his remarks. “However, much like other nuclear research facilities around the world, these historical operations have generated different forms of nuclear waste. While this waste is being safely managed and monitored for the short term, permanent solutions are necessary in order to reduce the risks that this waste presents to our workforce, the public and the environment.”
“We have had to defer all major environmental remediation of our legacy waste management areas, because we have not had the capacity to manage the volumes of waste that would be generated from executing this critical clean-up mission,” commented Ms. Vickerd, during her remarks to the Commission. “The NSDF is required to facilitate these activities, and has been designed and will be built to modern standards.” As part of the agenda, CNSC Commission staff presented opening remarks on the project, voicing their confidence in the safety of the facility design and CNL’s proposed plans to construct and operate the NSDF. Following prepared remarks, both CNSC and CNL staff responded to a number of questions focused on all areas of the project, including waste management, environmental protection, Indigenous engagement and facility design and operation. Congrats to the project team! Up next is Part 2 of the hearings, which is scheduled to begin on May 31, 2022. While Part 1 heard submissions from CNL and CNSC staff on the licensing application and environmental assessment, Part 2 will present Indigenous communities and members of the public with the opportunity to present their comments to the CNSC commissioners.
BUILDING A BRIGHT FUTURE AT THE CHALK RIVER CAMPUS THROUGH RESPONSIBLE WASTE DISPOSAL We at CNL have a proud heritage. Chalk River Laboratories has been a centre of game-changing science for more than 70 years. Research at the site has led to cancer therapies and medical diagnostics, discoveries in astrophysics and neutron imaging, and innovations in non-carbon energy.
Today, CNL is seeking support from our industry, supply chain and the public and Indigenous Peoples to move this project forward and advance the future of radioactive waste disposal in Canada and our scientific mission at Chalk River.
ENGAGEWITHCNL.CA/NSDF
Today, our missions are to restore and protect Canada’s environment, advance clean energy technology, and continue to make contributions to the health of Canadians through medical breakthroughs. The path to achieving these missions necessitates an environmentallyresponsible solution for the low-level waste that has resulted from many years of ground-breaking science at our labs, which is why we are proposing to construct the Near Surface Disposal Facility, or NSDF. It’s an acronym that most of us at CNL are now familiar with as we approach Part 2 of the two-part CNSC hearing on CNL’s application to amend its site licence to construct the NSDF. Canada’s nuclear regulator, the Canadian Nuclear Safety Commission (CNSC), is evaluating CNL’s proposal in a two-part hearing that began this spring. Part 1 of the two-part hearing was completed on February 22, 2022. Part 2 of the hearing, which focuses on Indigenous and public interventions, begins on May 31, 2022. Anyone can participate in the hearing process by submitting a written intervention or letter of support to the Commission by April 11, 2022. Information on how to participate can be found at www.nuclearsafety.gc.ca/eng/thecommission/intervention/index.cfm. And if you missed Part 1 of the hearing, you can watch it on the CNSC’s website at www.nuclearsafety.gc.ca/eng/the-commission/ webcasts/index.cfm.
As many of us see every day, the Chalk River campus is visibly changing to take us into the future. The new Site Entrance building is a visitor’s first indication of the Government of Canada’s $1.2 billion investment to modernize the laboratories and revitalize the site. Honoured by the Algonquins of Ontario with the name Minwamon, meaning “clear path,” it is one of three new buildings that use wood as the main structural material, reducing the carbon footprint of the campus. The revitalization of the Chalk River campus is enabling Canada to continue its history of life-changing and forward-thinking science and technology. In the centre of our site is the new LEED-certified Harriet Brooks building, a world-class material science laboratory named after the first Canadian female physicist, who is recognized for her important contributions to atomic physics. Decades of innovative research and development has resulted in waste by-products. The remarkable progress of our Facilities Decommissioning team, with the demolition of more than 100 aging structures, has also led to waste - in the form of building debris and decommissioning material. Our Waste Management team has been storing the waste onsite using current industry best practices. But we all know – this is not a permanent solution. Decommissioning and waste management is a challenge facing our entire nuclear industry. It is also an area where we excel as industry
at the Chalk River Laboratories site.
SAY YES
TO NSDF leaders. CNL is once again using our scientific expertise and cuttingedge technology to put forward a long-term environmental solution. Taking guidance from international and domestic best practice, in particular our own experience with the Port Hope Area Initiative (PHAI), the NSDF will be key to achieving continued advancements in science and technology. At PHAI, as you may recall, we recently celebrated the closure of the engineered above ground mound in Port Granby, with 1.3 million tonnes of contaminated soil and industrial waste placed in the mound for safe, long-term storage. “Chalk River Laboratories is undergoing a transformative change that will propel CNL into the forefront of nuclear research in Canada and the world. The Near Surface Disposal Facility is key to this revitalization,” said Kristan Schruder, CNL Deputy Vice-President of Environmental Remediation Management.
available at www.aecl.ca/wp-content/uploads/2020/05/Final-ENGInternational-Panel-Review-Report-3-23-2020.pdf. At CNL, we are committed and prepared to implement this modern solution to an old environmental problem. Let’s use our know-how to build a better future, together. Let’s move this environmental solution forward - say yes to NSDF. Visit our Virtual Visitor Centre to learn how you can get involved: www.engagewithcnl.ca/nsdf.
The big reason behind the NSDF is clear to most of us, but some of the other details about the project have not been as thoroughly discussed. Did you know that the design technology specific to the NSDF has been tested extensively? The facility will use natural and synthetic barriers that work together to isolate the waste from the environment for generations. Testing on the synthetic geomembrane done at Queen’s University concluded the membrane will stay intact for more than a thousand years – much longer than the time it will take for the radioactivity contained in the facility to decay to a safe level. Did you know that the project is estimated to cost $365 million? A skilled workforce of 225 to 300 people is needed to build it from the ground up. If our proposal is approved by the Canadian Nuclear Safety Commission, construction of the NSDF is anticipated to start in the fall of 2022. Did you know that the safety case for the proposed facility has undergone an international third-party review? It is publicly
SO ... HOW DOES IT WORK?
ATHENA: CNL’S NEW SUPER COMPUTER New high-performance super computer poised to support CNL’s future projects
While the names “Titan” and “Minerva” may sound like characters in Greek mythology, they are actually names of high performance computing resources that CNL has used for research and development purposes over the years. Titan is the original Linux computing cluster that was developed to assist with running codes such as MCNP (a particle transport code) for the purposes of reactor physics code validation exercises in our then role as a nuclear R&D wing of a national nuclear reactor vendor. As we transitioned to a national nuclear lab, we created ‘Minerva’, a system for developing and testing codes on different types of computing hardware; the architecture of Minerva is diverse and designed for experimentation. As modelling complexity and CNL’s computational demands grew, these systems frequently run beyond capacity with long wait times for resources before the next model could be executed, significantly limiting the work that could be performed. CNL needed to look for a new solution to better support current and future S&T projects. The answer is ‘Athena’, CNL’s recently procured, installed and commissioned high performance computing cluster. At its basic level, Athena is a pool of powerful computers connected together by a high speed, low latency network. Physically, Athena looks like three large ‘fridge size’ cabinets full of computing equipment. With over 3,200 cores (CPUs) and 750 TB of storage space, Athena doubled CNL’s computing capabilities and processing speeds – roughly equalling to what Titan and Minerva were capable of doing together.
ATHENA EQUIPMENT READY FOR INSTALLATION
Approximately 20 per cent of the publications coming out of CNL over the past six years rely on modelling and simulation. During the global pandemic when experiments were limited, the fraction of papers produced using modelling increased to almost 30 per cent (source: Scopus). Improving our modelling and simulation capabilities is an essential means of increasing the efficiency of staff to perform wordclass research that is worthy of publication. Six of the top ten cited papers with authors affiliated to CNL in the past five years involved modelling and simulations, showcasing this importance.
“We must continue to expand our computing capability to meet demand and stay competitive with the industry. Scientific and high-performance computing has become an integral component required for success in most S&T areas of strategic importance to CNL. US national labs and other CNL competitors have very significant computing capability and approximately one third of all CNL Federal Nuclear Science and Technology work is dependent on computing. It is hard to think of an area of our life that has not been transformed by technology or computing.”
“This capability expansion will better position CNL to meet its computing challenges. It will enable CNL S&T and technical staff to better respond to commercial opportunities both in Canada and abroad as well as foster collaboration with external organizations,” said Peter Pfeiffer, Programmer / System Analyst with the Thermalhydraulics & Safety Analysis branch as well as the system administrator for Athena. “Scientific computing or high-performance computing is an enabling technology in many key areas of interest to CNL, including computational fluid dynamic, big data analytics, machine learning, physics and thermalhydraulics modelling, materials aging, failure predictions, additive manufacturing, advanced materials discovery and development, DNA analysis, and much more.”
At present, Athena resides in the Building 508 Data Centre. However, once the new Science Collaboration Centre building is ready, Athena will move to the new data centre located there.
When asked what users of Athena enjoy most about the cluster compared to Titan and Minerva, Pfeiffer explained that it’s all about the speed, performance and modern resources. The faster the cluster with better infrastructure, the more and larger models that can be executed in the shortest amount of time. We need the ability to run large models and we also need to execute as many models as we can at the same time. That is really the key and that is what Athena does for us so well.
Thank you to the teams that worked hard to bring this new high performance computer to fruition including the set-up, procurement and installation team: Ashlea Colton, Sharon Pfeiffer, Peter Pfeiffer, Chris Bell, Tom Vaughan, Mark McKenna, Chris Van Wert and the bid evaluation team: Krishna Podila, David Wang, Alexandre Trottier, Jon McKay, and Michael Echlin. CNL’s High Performance Computing admins are: Peter Pfeiffer and Jon McKay, with Tammy Chin and Sharon Pfeiffer performing various system, technology and related duties. If you would like to know more about Athena, please check out the Athena SharePoint at: https://cnllnc.sharepoint.com/sites/ Athena. If you’re interested in getting an account, please complete a new account request form at: https://cnllnc.sharepoint.com/sites/ Athena/Lists/Athena%20UserSupport%20Request/CustomItems. aspx or reach out to Peter Pfeiffer (peter.pfeiffer@cnl.ca).
UPDATE ON NRU PERMANENT SHUTDOWN Reactor achieves a state of Storage with Surveillance, a major milestone Since the shutdown of the NRU reactor on March 18, 2018, the NRU Transition team working on the NRU Permanent Safe Shutdown Project (NRU PSSP) safely and systematically completed multiple enabling activities that has culminated in the reactor achieving a state of Storage with Surveillance (SWS). This is a major milestone completed this fiscal year, and a necessary step to continue toward decommissioning. After the reactor was shut down, the team safely removed all of the fuel from the reactor (over 90 driver fuels and the experimental fuel that remained in the loop system). This included all of the control rod absorbers and adjuster rods. Following defueling, all of the heavy water remaining in the reactor, circuit systems and piping was drained and decontamination of the heavy water system and reactor vessel was performed. The team processed all of the heavy water along with the inventory of heavy water in the facility’s storage tanks, totalling approximately 200,000 litres of heavy water. This water, securely and safely packaged in drums, was transported to the LaPrade site for storage. The highly contaminated and radiologically hazardous heavy water purification Ion Exchange (IX) columns were then removed and sent to the Waste Management Areas for safe storage. The team prepared 76 work packages to permanently shut down the reactor systems. To date, 63 systems have been permanently shut down to bring the facility into a state suitable for SWS. The permanent shutdown of these systems included the removal of industrial and radiological hazards where possible, and reductions in maintenance and operational requirements. The team simultaneously performed post operational clean out activities of the facility, resulting in the safe sorting and removal of many tons of waste over the past three years. In the Rod Bays, the team processed cobalt rods and completed shipments to the Universal Hot Cells in Building 234 to meet customer needs. A project to clean-out the rod bay began, this lead to successfully filling the first self-shielded container. The self-
shielded container is being used for intermediate level waste storage. In addition, the planning for continued rod bay clean out continues; spent driver fuels from the Rod Bays were transferred to the Waste Management Areas. The C2 Spectrometer located in the reactor hall, originally deemed waste, was disassembled in preparation for shipment to McMaster University instead. The spectrometer, a component with which significant research was completed, will support the Canadian Neutron Scattering community during their future endeavours. This is a prime example of repurposing equipment deemed waste (waste diversion) in support of the greater nuclear research community. In addition to the shutdown activities, the NRU Transition team provided support to some ongoing cross mission projects with the Science and Technology (S&T) group. This included the Bruce Power Stuffing Box Quality Check Project, the Material Harvesting Project with retrieval of fuel cups from the base of the reactor vessel, and providing storage space in the Rod Bays for S&T nuclear assets. While there were certainly lessons learned along the way, the permanent shut down activities were safely completed. During this time, NRU saw a significant reduction in the workforce, with many finding new roles within CNL. Despite the reduction in staffing and the complications presented by the restrictions imposed as a result of the COVID-19 pandemic, the team completed the work successfully and maintained the mandated continuous shift coverage until the SWS state was achieved. Further highlighting how impressive the achievements above are. Continuous shift coverage in the facility ended in September and as the team progresses transitioning NRU to storage with surveillance, the project team is now looking forward to guide future work and priorities. The Facilities Decommissioning and Environmental Remediation (FD & ER) team will collaborate, cross-train and work alongside the project team to evolve into the next phase of the shutdown and prepare for the decommissioning process.
A RECENT CAPSTONE PROJECT INVOLVED TOMOGRAPHY RESEARCH TO BETTER UNDERSTAND THE DEFORMATION BEHAVIOUR OF TRISO PARTICLES
DEVELOPING FUTURE INNOVATORS IN CANADA CNL engages the next generation of researchers through Capstone Project experience
Many of us are likely familiar with CNL’s history supporting postsecondary students with real-world experience via our fall, winter and summer employment programs. For CNL, it’s an opportunity to make a strong impression on the next generation of nuclear workers – our future innovators, safety experts and business builders. However, many may not know that CNL also collaborates with universities across the country to support educational requirements of students with project experiences that put the knowledge they learn in the classroom to the test. These are called capstone projects, and our S&T Advanced Reactors Directorate (ARD) has been recently collaborating with the University of British Columbia (UBC) over the last two years to give groups of engineering students the opportunity to participate in industryrelevant research projects. In the fall of 2020, Hygreeva (Hygi) Namburi, a Research Scientist with ARD, proposed a project to design and develop fuel cladding testing capability by applying design and engineering concepts. The proposal was selected by a group of five students from the materials engineering stream. “Students’ work included designing selected fuel cladding finite element models that could predict the fuel cladding failure behaviour and successfully defended their work the following spring in May 2021,” says Namburi. “What’s more, the students were awarded their school’s departmental prize as the highest-rated for their work from a total of 11 project teams.” In advance of the 2021 fall term, CNL provided the UBC Engineering School with a second capstone project proposal – Design and development of a test rig for characterization of TRISO fuel particle mechanical properties. Students once again participated remotely, given the format of their corresponding classes at UBC, and their work culminated in the
UBC STUDENTS ALEX GONZALEZ, BETTY CAI, ANGELA LI AND SARI ZERAH STUDIED TRISO PARTICLES AT CNL
project’s key objectives – to design a mechanical stage for application in the X-ray tomography facility at CNL and to understand the deformation behavior of TRISO particles under compressive loading. This work focused on failure prediction of fuel & cladding materials. “For CNL, offering capstone projects means we have a great opportunity to not only become part of students’ consideration set for employment seeking, but hopefully their top pick,” adds Namburi. And recruitment is not just a hope of capstone project implementation. Following his participation in CNL’s first capstone project at UBC, Alex Gonzalez applied to CNL and is now employed as an Operations Specialist. “My capstone project experience challenged my skill set and allowed me to build on it,” says Gonzalez. “I applied to CNL for the breadth of research opportunities but also because of my positive capstone project experience and Hygi’s teaching and mentorship.” Another successful capstone project experience is well underway this present semester with the continued support of the Advanced Reactors Directorate, and CNL is hopeful that its mutually beneficial collaborative relationship with UBC will continue into the future.
KEY INFRASTRUCTURE UPGRADED AT CRL Telecommunications upgrade improves flexibility and resiliency of Chalk River network Since the fall of 2021, staff, contractors and visitors coming onto the CRL site would have noticed digging along the sides of Plant Road. This digging work is part of a plan to upgrade the telecommunications network at the CRL site. The project includes the installation of a buried duct structure to provide upgraded telecommunications services to CNL. The duct structure will allow for a more flexible and resilient infrastructure and provide redundancy reducing potential loss of productivity and revenue as CNL becomes more reliant on external hosted services. Lack of adequate infrastructure will not allow the company to expand its communications externally or to invite business partners to establish private communications separate from CNL while conducting work at our site, for example, SMR partners. The upgrades to the telecommunications services are required to accommodate the increased demand for cloud storage services, remote work initiatives, and external S&T collaborative work as S&T has a requirement to engage with external partners for remote connections and the current bandwidth is inadequate. The upgrades are also part of our Site Master Plan since that document provides a framework for supporting facilities and infrastructure. CNL has worked with Cogeco to utilize this new infrastructure to support upgraded residential services to Deep River via Plant
CNL UPDATES INFRATRUCTURE ALONG PLANT ROAD
Road and Mattawa Road to Balmers Bay Road. There is work also commencing in the Village of Chalk River. The upgrade also takes into consideration future telecommunications requirements for the new builds along Plant Road, which also includes the Near Surface Disposal Facility. Thank you to the team and contractors that have been working hard on this project. This is a great example of CNL working with community partners while also increasing the telecommunications benefits to our staff that need it to perform their work.
FD & ER TECHNICAL TEAM COLLABORATES WITH THE NUCLEAR POWER DEMONSTRATION TEAM
OPERATORS REMOVING EQUIPMENT FROM NPD STACK
The Nuclear Power Demonstration (NPD) reactor facility is presently in a Storage with Surveillance (SWS) phase of decommissioning. In support of maintaining the NPD facility in a safe configuration, the Facilities Decommissioning and Environmental Remediation (FD & ER) Technical Team and the NPD Team worked in collaboration with one another to remove equipment on the ventilation stack at the NPD site in October. The equipment on the Ventilation stack is now redundant, and to ensure safety of the overall site, this equipment was removed to prevent deterioration and hazard. An external contractor provided two mobile cranes and operators to hoist the main basket and skip tray to complete this work.
Some of the equipment that the FD & ER technical team removed from the ventilation stack included the platforms at the top of the stack, the maintenance ladder, the safety rail, the aviation warning Lights, and the communication dish. Since the stack was constructed, Canadian Aviation Regulations had been revised, and formal approval was recently granted from both Transport Canada and NAV Canada indicating that aviation warning lights and markings are no longer required for the NPD ventilation stack, which is why they were removed. The accessories that were connected to the work platforms, the microwave communication dish, the aviation lights, the maintenance ladder rungs, and all electrical cables associated with the above equipment were also removed. The teams worked efficiently together to complete the field work in under a week. Given the nature of this removal project and height at which the field work was performed, 150 feet off the ground, there were some risks involved. There were several precautions and concerns to be aware of, such as industrial hazards, ergonomic hazards, biohazards, and considering species at risk that may be affected. To mitigate the concerns for the species at risk during the project, the field work was completed outside of chimney swift season (early May to end of August). All field staff also had the applicable safety training, working at heights certification and donned the required Personal Protective Equipment and Clothing (PPE & C) during the work. The project was completed safely and successfully without incident; a great example of collaborative work between two CNL sites.
Do you have a colleague who, through their actions and initiative, exemplify CNL’s values? Now is the perfect time to recognize their efforts!
PRP is built on CNL’s values of: Accountability, Excellence, Integrity, Respect, Safety and Teamwork. Employees demonstrate these values on the daily and their efforts should be celebrated and recognized.
With restrictions beginning to ease and meetings in person returning, we thought it was time for the freshly named Peer Recognition Program (formerly the Voyageur Recognition Program) to return too! Any submissions entered during the pandemic period will be included in the next evaluation round.
Employees are free to submit a nomination at any time through the online portal on myCNL. Nominations are evaluated quarterly, resulting in either a PRP Certificate of Recognition or a PRP Award.
The Peer Recognition Program (PRP) gives anyone within the organization the opportunity to acknowledge their co-workers. The
With this slow and safe return to normal, there have been many accomplishments by staff that deserve recognition. Please take some time to acknowledge your peers in the refreshed PRP program! Visit myCNL to learn more.
NEW FACES: 2022 JANUARY Bowie, Joshua Lounsbury, Lucas Song, Ximing Bednarczyk, Dominik Berger, Amy Blackley, Larissa Calder, Ian Dellaire, Brayden Farmer, Robert Gaona Gomez, Adriana Gibson, Curtis Hennessy, Brendan Hersak, Isabelle Hewko, Nicholas Kennaley, Tristan Kielar, Spencer Kinloch, Kristoffer Lasby, Ian Macdonald, Emma McCabe, Timothy McNabb, Timothy Mercer, Camden Navaid, Sohaib Pilieci, Jessica Rachev, Rosen Rech Rebelo, Marcelo Singh, Kuljot Thanenthira, Katherine Toomey, Andrew Trebilcock, John Ulicny, William Weckwerth, Mark Wong, Rebecca Boyd, Christopher Dewdney, Murray Mavec, Jonathon Dias, Crystal Akeson, Eduardo
DIRECTOR, S&T STAKEHOLDER ENGAGEMENT STUDENT PROJECT CONTROL COORDINATOR STUDENT UTILITY WORKER UTILITY WORKER UTILITY WORKER UTILITY WORKER PROJECT MANAGER RESEARCH SCIENTIST UTILITY WORKER UTILITY WORKER STUDENT STUDENT STUDENT STUDENT UTILITY WORKER FIRE PROTECTION SPECIALIST STUDENT R&D TECHNICAL OFFICER UTILITY WORKER STUDENT STUDENT STUDENT R&D SCIENTIST STUDENT STUDENT STUDENT STUDENT PROJECT MANAGER SAFETY & SECURITY DIRECTORATE UTILITY WORKER STUDENT PROJECT CONTROL COORINDATOR III PROJECT CONTROL COORDINATOR III RADIATION PROTECTION ADMINISTRATIVE ASSISTANT PROCESS MECHANICAL DESIGN TECHNOLOGIST
Crigger, Sean Karagozian, Georges Lentz, Douglas Okonji, Stanley Piler, Karishma Rozdeba, Anthony Vu, Minh Nam Avanthay, Aidan Belisle, Gerald Oversby, Owen Bruni, Matthew Courtney, Tim Dhotre, Chetan MacIsaac, Alison Malcomson, Jacob Schaub, Addison Thacker, Dannielle White, Jeremiah Burlock, Michael Perry-Beaupre, River Ramondino, James Thevathas, Sarmilan White, Justin Oliphant, Liza Dorie, Lawrence Gillis, Stacey Harkins, Brittany Kroes, Steven Lapping, Kelly Obrutsky De Marini, Laura Oladapo, Oluwaseun St. Pierre, Sarah Sylvestre, Julie Van der Kooij, Diana Wannamaker, Alec Frotten, Katelyn Ross, Kenneth
Voyageur is a publication of the Corporate Communications department of Canadian Nuclear Laboratories. Comments and content are welcomed at philip.kompass@cnl.ca. Additional contributors to this issue include Ziaul Haque, Ashlea Colton, Antonette Chau, Joe McBrearty, Meggan Vickerd, Peter Pfeiffer, and Kristan Schruder
RECORDS ASSISTANT I STUDENT SENIOR PROJECT LEADER PROJECT LEADER RESEARCH SCIENTIST STUDENT STUDENT UTILITY PERSON HEAVY EQUIPMENT OPERATOR UTILITY PERSON NUCLEAR SECURITY OFFICER TRAINEE NUCLEAR SECURITY OFFICER TRAINEE PROJECT MANAGER, AC-225 PROJECT NUCLEAR SECURITY OFFICER TRAINEE STUDENT INDUSTRIAL HYGIENE TECHNOLOGIST RECORDS ASSISTANT I MILLWRIGHT R&D TECHNICAL OFFICER UTILITY WORKER NUCLEAR SECURITY OFFICER TRAINEE NUCLEAR SECURITY OFFICER TRAINEE UTILITY WORKER HR BUSINESS PARTNER HEAVY EQUIPMENT OPERATOR PROJECT CONTROL COORDINATOR II RADIATION SURVEYOR TRAINEE RADIATION SURVEYOR TRAINEE RECORDS ASSISTANT I SENIOR SCIENTIST PROJECT CONTROL COORDINATOR RADIATION SURVEYOR TRAINEE TRAINING CONSULTANT SPECIAL ADVISOR NCS PROGRAM OFFICER RADIATION SURVEYOR TRAINEE SENIOR ADVISOR, INDIGENOUS RELATIONS