Section Synopsis
Pages: viiiThe document outlines the NWMO's strategy for managing secondary radioactive waste (LLW and ILW) produced during the operation and decommissioning of a used nuclear fuel Deep Geological Repository (DGR). It emphasizes compliance with Canada’s Integrated Strategy for Radioactive Waste, proposing interim on-site storage followed by permanent disposal in near-surface facilities for LLW and a separate, future DGR for ILW.
Community Assessment Narrative
The text presents a high-level, policy-aligned framework but lacks technical depth regarding the logistical and temporal challenges of managing secondary waste streams. While it correctly identifies the regulatory landscape (CNSC and national policy), it relies heavily on the successful implementation of future infrastructure—specifically a second DGR for ILW—that does not yet exist. This creates a 'dependency risk' where the current project's decommissioning success is tied to external projects. The tone is reassuring and authoritative, yet it avoids discussing the complexities and historical difficulties associated with 'consent-based siting' for the secondary ILW repository. Furthermore, the distinction between 'interim' and 'long-term' is not quantified, leaving the duration of on-site storage undefined.
Corrective Measures & Recommendations
The proponent must develop and publish a comprehensive, quantitative waste inventory and lifecycle analysis. This should include projected volumes and radionuclide inventories for LLW and ILW across all phases of the project. Detailed data is necessary to evaluate whether the proposed on-site licensed facilities have the capacity and structural integrity to manage waste for potentially extended periods. Without these figures, the environmental footprint of the 'interim' storage phase cannot be accurately assessed. Secondly, a robust 'Long-term Interim Management Contingency Plan' must be established. Because the disposal of ILW depends on a future repository that has not yet been sited, the proponent must demonstrate how waste will be safely contained if the national ILW DGR project faces multi-decadal delays. This plan should include specific criteria for container monitoring, repackaging protocols, and the environmental monitoring of on-site storage buildings over a 100-year horizon. Thirdly, the proponent should conduct an Integrated Transportation Risk Assessment that specifically addresses the logistics of moving secondary waste to multiple disparate locations. This study must evaluate the radiological risks to the public and the environment during the transit of LLW to near-surface facilities and ILW to a separate DGR, accounting for the cumulative impact of these shipments alongside the primary used fuel shipments. Finally, the NWMO must provide explicit financial assurance documentation. This should detail how the costs for the eventual transfer and permanent disposal of secondary wastes are factored into the project's decommissioning fund, ensuring that the 'waste generator responsibility' principle is supported by guaranteed financial resources that account for inflation and potential changes in disposal technology or regulatory requirements.
On 16 February, 2026 the Impact Assessment Agency of Canada (IAAC), with input from the Canadian Nuclear Safety Commission (CNSC), published a Summary of Issues (SOI) for the proposed Deep Geological Repository (DGR) for Canada’s Used Nuclear Fuel Project, put forward by the Nuclear Waste Management Organization (NWMO). The SOI identifies the key issues that IAAC considers relevant to the federal integrated impact assessment process for the project. NWMO’s response to the SOI will assist IAAC in determining whether an impact assessment is required under section 16 of the Impact Assessment Act. If an impact assessment is required, the issues outlined in the SOI—together with NWMO’s response—will help shape the scope of the assessment and inform the continued development and finalization of the Integrated Tailored Impact Statement Guidelines and associated plans.
Alignments to IAAC Summary (SOI)
The community findings from Melgund Township show a high degree of alignment with the IAAC Summary of Issues (SOI), particularly regarding socio-economic impacts and the long-term management of secondary waste. Melgund’s concern that the Revell site will suffer from a "nuclear dump" stigma and subsequent loss of property value is directly validated by the IAAC under the Socio-Economic Conditions theme, which explicitly lists "Economic impact on property value" and "Economic impacts from public perception" as key issues. The Township’s observation that the project glosses over the impact of being a multi-waste storage site supports the IAAC’s call for more information under Other Key Issues: Future modifications for accepted waste, which demands clarity on the types and volumes of waste to be managed.
A significant technical alignment exists regarding the "interim" storage of Intermediate-Level Waste (ILW). Melgund’s concern that the Revell site could become a de facto permanent home for ILW due to the lack of a second disposal site is mirrored in the IAAC’s Other Key Issues: Alternative means section, which flags the storage of intermediate and low-level waste as a specific concern. Melgund’s recommendation for a "definitive, maximum timeline" for storage and financial penalties for delays provides a concrete community-led solution to the IAAC’s broader concern regarding Monitoring and institutional control and the "long-term access conditions" of the site.
Regarding land use and community well-being, Melgund’s findings provide specific local evidence for the IAAC’s Socio-economic impacts to land use category. While the IAAC identifies general concerns about "recreation, tourism, fishing, hunting, [and] trapping," Melgund identifies specific assets at risk, such as the Dyment Recreation Hall and local trail networks. The Township’s demand for a "right-to-access" guarantee for hunters and trappers validates the IAAC’s concern regarding "reduced access to, or availability of, lands... used for traditional, cultural, or subsistence purposes" found in the Indigenous Peoples and Socio-Economic sections.
A notable gap exists in the geographic and operational specificity of transportation. While the IAAC SOI includes a comprehensive Transportation section covering "infrastructure preparedness" and "radiological effects," it does not specifically highlight the distinction between used fuel shipments and the additional truck traffic generated by secondary wastes (LLW/ILW). Melgund’s identification of Borups Corners as a specific pressure point for this secondary waste traffic is a localized issue that the IAAC has not yet explicitly flagged. Melgund’s analysis suggests that the proponent’s current transportation scope may be too narrow, failing to account for the cumulative traffic of "secondary wastes" alongside the primary used fuel shipments.
Key Claims
Underlying Assumptions
Critical Observations & Gaps
Analysis Table| Issue Identified | Implication | Information Required |
|---|---|---|
| Dependency on a future ILW DGR. | The project's end-of-life strategy is dependent on external infrastructure that does not currently exist. | A technical 'Plan B' for extended on-site storage of ILW. |
| Accumulation of secondary waste on-site. | Extended on-site storage of LLW and ILW could lead to increased localized radiological monitoring requirements. | Detailed environmental impact assessment for long-term on-site storage facilities. |
| Consent-based siting uncertainty. | Failure to secure a site for the ILW DGR could lead to the current host community becoming a de facto long-term storage site for all waste types. | Clearer communication with host communities regarding the potential duration of 'interim' storage. |
Working Group Recommendations
Demand the Proponent demonstrate 100% self-sufficiency for emergency response and fire suppression capabilities for the proposed on-site LLW and ILW storage facilities.
Request detailed site maps and footprint specifications for the 'licensed facilities' intended for interim LLW/ILW storage to assess cumulative land clearing and runoff impacts.
Require a socio-economic study on the impact of long-term 'interim' storage of LLW and ILW on local property values and the 'nuclear dump' stigma in Melgund.
Request a comprehensive transportation safety plan specifically for the eventual removal of LLW and ILW from the Revell site through Borups Corners.
Understanding the Impacts of Nuclear Waste on our Community
This digital archive houses the public comments submitted to the Impact Assessment Agency of Canada regarding Project 88774: The Nuclear Waste Management Organization Deep Geological Repository (DGR) for Canada's Used Nuclear Fuel Project. The impact assessment is led jointly by the Impact Assessment Agency of Canada and the Canadian Nuclear Safety Commission. This archive preserves community perspectives, concerns, and observations shared during the assessment process, particularly in relation to Melgund Township, Northwestern Ontario and the communities of Dyment and Borups Corners who are the closest and most impacted of all in the process.