Section Synopsis
Pages: 238-242The document outlines the pathways of change and preliminary risk screening for terrestrial wildlife and wildlife habitat associated with the Deep Geological Repository (DGR) project. It identifies various species groups, including Species at Risk (SAR) such as bats and snapping turtles, and evaluates potential impacts from site clearing, noise, vibration, and chemical emissions. The NWMO concludes that while residual effects are likely, the implementation of standard mitigation measures, environmental design features, and adherence to regulatory frameworks (SARA, ESA) will result in a 'low risk' outcome for all terrestrial wildlife valued components.
Community Assessment Narrative
The report adopts a highly optimistic tone regarding the efficacy of mitigation measures, frequently citing 'high levels of confidence' and 'well-established' practices. While the identification of species is broad, the analysis tends to dismiss the presence of certain carnivores (wolverine, cougar) based on low density or distance without providing recent, site-specific telemetry or intensive camera-trapping data. A critical tension exists between the acknowledgment of five endangered bat species and the conclusion that sensory disturbances will be 'negligible.' The reliance on the ALARA (As Low As Reasonably Achievable) principle for non-radiological stressors like noise and dust suggests a management-heavy approach rather than an ecology-first approach. Furthermore, the document assumes that 'self-sustaining' populations are the only metric of success, potentially overlooking localized extirpations or the degradation of specific high-value habitat patches that contribute to regional biodiversity.
Corrective Measures & Recommendations
To ensure the protection of the five endangered bat species identified, the NWMO must move beyond general mitigation and implement a rigorous, multi-year acoustic monitoring and maternity roost identification program. This is necessary because standard 'clearing outside of breeding windows' does not account for the loss of critical hibernacula or specific foraging corridors that may be unique to this site's geography. Detailed mapping of these features should be a prerequisite for any site preparation. Furthermore, the 'low risk' designation for sensory disturbances (noise and vibration) from blasting must be validated through a pilot study or site-specific modeling that accounts for the unique acoustic environment of the repository's location. The NWMO should establish 'stop-work' thresholds: if monitoring detects behavioral shifts in SAR (such as nest abandonment or significant changes in foraging patterns), specific, pre-defined corrective actions must be triggered immediately. Additionally, the project should conduct a comprehensive landscape connectivity analysis. Because the DGR is a multi-decadal project, the cumulative impact of habitat fragmentation on wide-ranging species like moose and carnivores cannot be assessed solely within the project footprint. A regional study is required to ensure the project does not create a 'sink' or a barrier that disrupts genetic flow between adjacent wilderness areas. Finally, all 'adaptive management' plans must be made public and include specific, measurable ecological indicators rather than vague commitments to 'minimize effects.'
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 demonstrate a high degree of alignment with the "Key Issues" identified in the IAAC Summary of Issues (SOI) published on February 16, 2026, particularly within the categories of Terrestrial Wildlife and their Habitat and Species at Risk and their habitat. The IAAC SOI explicitly notes a need for more information on levels of disturbance, displacement, and harm to local wildlife. Melgund’s analysis provides the technical specificity to support this, flagging the proponent’s use of the ALARA (As Low As Reasonably Achievable) principle for noise and light as a significant gap. While the IAAC identifies "noise" and "light" as general stressors under human health, Melgund’s findings correctly identify that the proponent lacks specific quantitative thresholds for these stressors as they apply to wildlife protection, validating the IAAC’s broader concern regarding "insufficient information on species at risk."
A critical alignment exists regarding the proponent’s characterization of risk. The IAAC SOI, under the Project description section in Annex A, highlights concerns about how "uncertainty, risk, and the effectiveness of proposed mitigation measures are characterized." This directly mirrors Melgund’s observation that the NWMO’s transition from "high potential impact" to "negligible residual impact" is unsubstantiated. Melgund’s assessment finds that the proponent relies on procedural assumptions rather than site-specific evidence or quantitative modeling. This suggests a significant methodological gap: while the IAAC has flagged the need for better risk characterization, Melgund’s analysis identifies the specific failure of the proponent to justify the effectiveness of standard industry practices when applied to endangered species like the five bat species identified on-site.
Furthermore, Melgund Township’s findings identify a potential gap in the IAAC’s summary regarding regional connectivity. While the IAAC SOI mentions "additional regional land disturbance" under Cumulative environmental effects, it does not explicitly detail the dismissal of wide-ranging carnivores like the wolverine or cougar. Melgund’s analysis suggests that the proponent’s dismissal of these species based on current density ignores the project site’s role as a potential corridor. This community finding strengthens the IAAC’s call for a better understanding of "indirect pathways of effects" by pointing out that habitat fragmentation for wide-ranging species is a regional issue that the current Initial Project Description (IPD) fails to model.
Recommendations
The working group recommendations focus on the necessity of a comprehensive Species at Risk (SAR) Management Plan that moves beyond the proponent's current reliance on general best management practices. To address the issues identified in the IAAC SOI regarding the "effectiveness of proposed mitigation measures," it is recommended that the proponent disclose specific, quantified habitat offset ratios and implement site-specific protections, such as maternity roosting structures for endangered bats. These actions must be verified by independent biological monitors to ensure that the "negligible risk" conclusion is based on empirical performance rather than administrative compliance.
To resolve the uncertainties flagged by both the IAAC and the community regarding risk thresholds, the proponent should be required to define the exact quantitative metrics used to distinguish between negligible, low, and moderate effects. These recommendations are designed to create a transparent, data-driven framework for accountability. By establishing a long-term, peer-reviewed monitoring program with pre-defined "trigger" points for adaptive management, the community can ensure that any deviation from predicted wildlife population levels results in immediate corrective action, thereby addressing the IAAC’s concerns regarding the long-term monitoring of environmental effects.
Key Claims
Underlying Assumptions
Critical Observations & Gaps
Analysis Table| Issue Identified | Implication | Information Required |
|---|---|---|
| Lack of site-specific vibration impact modeling on burrowing mammals and herpetofauna. | The reliance on 'industry experience' may not account for the specific subterranean-to-surface vibration profiles of a DGR. | Geotechnical-ecological integrated modeling to predict vibration propagation through specific soil/rock strata. |
| High concentration of endangered species in a project zone with high sensory output. | The presence of five endangered bat species makes the site extremely sensitive to both habitat loss and sensory disturbance. | Species-specific mitigation plans for each endangered bat species, rather than a general 'wildlife' approach. |
| Indirect effects on land use are mentioned but not detailed in this section. | Changes in wildlife distribution could affect local hunting or wildlife viewing, impacting non-Indigenous and Indigenous communities. | Integration of traditional ecological knowledge (TEK) regarding wildlife movement patterns. |
| Potential for 'mitigation over-confidence' where actual impacts exceed predicted negligible levels. | The 'low risk' conclusion may lead to reduced oversight during the construction phase. | Independent third-party monitoring of wildlife indicators during the first five years of construction. |
Working Group Recommendations
Challenge the Proponent's claim that residual effects on terrestrial wildlife will be 'negligible' despite a 'moderate likelihood' of sensory disturbance, and request the specific quantitative thresholds used to define 'ALARA' for noise and light emissions affecting the five endangered bat species and moose.
Request a regional habitat connectivity and fragmentation analysis that includes wide-ranging carnivores such as the wolverine and cougar, rather than dismissing them based on current density or distance from the project site.
Demand the Proponent demonstrate 100% self-sufficiency for emergency response related to wildlife-vehicle interactions on project-access roads, given the predicted displacement of wildlife due to sensory disturbances.
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.