Mr. Speaker, with regard to (a), the low- and intermediate-level radioactive waste at Chalk River Laboratories, CRL, is safely and securely stored and managed in a number of above-ground and in-ground waste management structures and areas at the site. Several options are being considered for the long-term management of these wastes. The range of options being considered includes surface, near-surface, and deep geologic facilities. The investigations are currently in the option assessment stage. Feasibility studies are under way or planned to inform decision-making on the types of long-term waste management facilities required to safely manage these wastes over the long term.
With regard to (b), all low- and intermediate-level radioactive waste at CRL, including that stored in above ground concrete structures, is maintained in a safe and secure condition, as required by the Canadian Nuclear Safety Commission, CNSC, licence conditions. The integrity of this storage is verified on an ongoing basis through appropriate monitoring of the containment and the surrounding environment. This waste will be maintained in secure storage until permanent disposal facilities are available. The design life for the above-ground concrete storage structures, commonly referred to as shielded modular above-ground storage, or SMAGS, is 50 years.
With regard to (c), long-term performance is evaluated by Atomic Energy of Canada Limited, AECL, via monitoring to confirm that the wastes continue to be stored safely, and the results are reported to the CNSC. The first Canadian SMAGS was constructed in 1982 by Ontario Hydro on the Bruce nuclear site and has been in service, without issue, since that time. AECL has two such facilities in service at CRL, as well as an earlier-generation facility with less shielding, which is for low-level radioactive waste only.
With regard to (d), a number of long-term management options are being considered for AECL’s low- and intermediate-level radioactive waste, including the possibility of a deep geologic facility. AECL is currently conducting a site suitability assessment of the CRL site for a deep geologic facility for its intermediate-level radioactive waste. The study is part of AECL’s efforts to define the infrastructure required for the long-term management of radioactive waste at CRL. The site suitability assessment is not yet complete and, as such, neither a project description nor a project scope has been developed.
With regard to (e), the cost assessments completed to date have been high-level estimates for possible deep geologic facility concepts and are not sufficiently developed for public release. The high-level estimates are, however, in line with estimates for other similar proposed facilities.
With regard to (f), a long-term performance assessment would be part of a formal plan. As there is no decision to proceed with a deep geologic facility, a long-term performance assessment has not yet been completed. Such an assessment would be an integral part of the safety case that would be required to license such a facility.
With regard to (g), a post closure safety assessment would be part of a formal plan. As there is no decision to proceed with a deep geologic facility, a post-closure safety assessment has not yet been completed. This assessment would be an integral part of the safety case that would be required to license such a facility.
With regard to (h), public awareness of the feasibility study has been promoted through interaction with the local environmental stewardship council for CRL and presentation of results at conferences.
With regard to (i), should the site suitability study indicate that a deep geologic facility would be feasible for the Chalk River site, directed public consultations would proceed on the options for managing Chalk River’s low- and intermediate-level radioactive waste over the long term. This would include the possibility of a deep geologic repository. The process would involve the local community, aboriginal groups, stakeholders, and the broader public. If a decision was made to proceed with a deep geologic facility, an environmental assessment under the Canadian Environmental Assessment Act, 2012, would be required, providing further opportunities for public involvement.
With regard to (j), as no decision has been made on whether to proceed with a deep geologic facility, no peer review process is in place. It would be important to include a peer review process if the project moves ahead.