The Nuclear Waste Management Organization, the not-for-profit organization responsible for managing Canada’s spent nuclear fuel, said it will begin developing a plan for a consent-based siting process for a deep geologic repository for intermediate-level and nonfuel high-level radioactive waste.
Sandia National Laboratories engineers Emily Stein, left, and Paul Mariner discuss recent results from their Geologic Disposal Safety Assessment software framework.
Ten teams of scientists from across the globe, including teams from the United States, Canada, Germany, and Taiwan, are virtually comparing software tools developed to assess the safety performance of deep geologic repositories for nuclear waste. The virtual workshop, held this month, is being conducted by members of an international collaboration called Development of Coupled Models and their Validation against Experiments, or DECOVALEX.
“The DECOVALEX initiative creates an important framework for experts in repository sciences from around the world to test and improve simulation models that are important to assessing the safety of geologic disposal,” said Jens Birkholzer, chairman of the initiative and a senior scientist at Lawrence Berkeley National Laboratory.
Despite the challenges of the past year, Canada is on track to select a deep geologic repository site for the country’s used nuclear fuel by 2023, the Nuclear Waste Management Organization said in its annual report to the Canadian government. In conformance with Canada’s Nuclear Fuel Waste Act, the report, Guided by science. Grounded in knowledge. Committed to partnership, was submitted to Natural Resources Minister Seamus O’Regan on March 25.
How to warn future generations to the location of buried long-lived radioactive waste has been debated for decades. Everything from massive obelisks inscribed with ominous warnings and fields of concrete “thorns,” to “atomic priesthoods” and cats that change color when exposed to ionizing radiation—all are real ideas that have been proposed. Others argue, rather convincingly, whether any such warning is needed at all.
The multifaceted issue of nuclear semiotics is the subject of a recent article in the web magazine BBC Future.
Canada’s Nuclear Waste Management Organization is getting ready to begin drilling the first borehole in South Bruce, Ontario, as the organization starts its evaluation of the site as a potential host for a deep geological repository for Canada’s spent nuclear fuel. The NWMO said that it has begun important technical and environmental work to prepare the site for drilling, including an evaluation conducted by a biologist on July 6, assessing the location for potential habitat use by sensitive species.
Ontario Power Generation (OPG) has officially canceled its plan to construct a deep geologic repository (DGR) for low- and intermediate-level radioactive waste at its Bruce site, withdrawing the project from Canada’s federal environmental assessment process. In a June 15 letter to OPG, Canada’s minister of Environment and Climate Change, Jonathan Wilkinson, accepted the company’s request to withdraw the project and end the environmental assessment.
OPG also informed the Canadian Nuclear Safety Commission that the company was terminating the project and asked that its site preparation and construction license application be withdrawn.