Caribou Habitat Risks at Revell DGR Site

Woodland Caribou and the Revell Site Project

Question: What about tuktu/caribou? They are not far away, and will the project hurt them? Are they studying caribou?

Executive Summary

Woodland caribou (tuktu) are currently excluded from the proponent’s environmental baseline studies for the Revell Site Deep Geological Repository (DGR). The Nuclear Waste Management Organization (NWMO) asserts that the nearest caribou range is approximately 61 kilometers north of the project centroid, which they claim removes any regulatory requirement for study [Analysis: 14.11 Species at Risk and their Habitat].

However, Indigenous organizations and members of the public have raised significant concerns that this exclusion ignores cumulative effects, habitat fragmentation, and the potential for species migration. There is a high level of skepticism regarding the proponent's reliance on static regulatory boundaries to dismiss impacts on a species already in decline due to climate change and industrial development [Comment Ref: 517].

Detailed Analysis

The proponent’s current position is that because the project site is located 61 km south of the Churchill Range boundaries, there are no federal or provincial triggers to include woodland caribou in the environmental baseline [Analysis: 14.10 Terrestrial Wildlife and Wildlife Habitat]. This approach treats the project site as ecologically isolated from the broader northern forest ecosystem. This methodology fails to account for the fact that caribou are wide-ranging ungulates that may utilize the Revell area as a secondary corridor or for future range expansion.

Indigenous groups, specifically the Manitoba Métis Federation (MMF), have identified caribou as a species of critical concern. They note that caribou populations are already under stress from existing developments and climate-driven habitat shifts [Comment Ref: 517]. The introduction of a massive industrial footprint, including blasting and heavy-haul traffic along Highway 17, could create a sensory barrier that further restricts species movement.

The project involves significant land clearing and the construction of new access roads and a rail spur. These activities contribute to habitat fragmentation, which is a primary driver of caribou decline in the Canadian Shield [Analysis: 19.2.3.10 Terrestrial Wildlife and Wildlife Habitat]. By excluding caribou from the baseline, the proponent avoids having to model how the DGR’s multi-decadal construction phase will interact with regional recovery strategies for the species.

IAAC Summary of Issues Alignment

The concerns raised by the community regarding caribou and general wildlife health are explicitly reflected in the IAAC Summary of Issues. The Agency has identified "Species at risk" as a key issue, noting a specific concern regarding "insufficient information on species at risk and their habitats in the area surrounding the project" [Analysis: 14.11 Species at Risk and their Habitat].

Furthermore, the IAAC Summary highlights the need for more information on "levels of disturbance, displacement, or harm" to local wildlife. The community's fear that the project will "hurt" the caribou aligns with the Agency's identified issue regarding "radiological effects on wildlife, including impacts related to bioaccumulation and migration" [Analysis: 19.2.3.10 Terrestrial Wildlife and Wildlife Habitat].

Evidence from Public Registry

The Manitoba Métis Federation (MMF) has been vocal about the potential for the project to adversely impact species like moose and caribou. They argue that the proponent’s "pan-Indigenous" approach to consultation has failed to capture the specific knowledge their citizens hold regarding wildlife health and traditional harvesting areas [Comment Ref: 517].

Other commenters have emphasized the ecological value of the Northwestern Ontario wilderness, arguing that the area should be protected for its biodiversity rather than used for nuclear waste storage [Comment Ref: 606]. There is a recurring sentiment that the toxicity of spent fuel and the destruction of habitat pose an unacceptable risk to the "animal nations" that inhabit the land [Comment Ref: 568, 33].

Technical Deficiencies & Gaps

Our internal analysis identifies a major technical gap in the proponent’s failure to conduct a connectivity or corridor analysis for wide-ranging species. Relying on a 61 km distance buffer is a legalistic avoidance of the Precautionary Principle. It does not address how the project might act as a "sink" or a barrier for species attempting to navigate between northern ranges and southern habitats [Analysis: 14.11 Species at Risk and their Habitat].

Additionally, the proponent admits that terrestrial invertebrate and reptile data are either based on 1980s records or are "unoptimized" [Analysis: 14.10 Terrestrial Wildlife and Wildlife Habitat]. This lack of modern, rigorous data for other species suggests a broader pattern of methodological minimalism that likely extends to their decision to exclude caribou from the scope of the assessment.

Recommendations & Mandates

To rectify these deficiencies, we strongly recommend that the proponent be mandated to include woodland caribou in a revised environmental baseline study. This study must move beyond static map boundaries and include a regional habitat connectivity analysis. This analysis should evaluate the project’s role in fragmenting the landscape and its potential to disrupt long-term species recovery efforts in the Kenora District.

We also strongly recommend that the proponent conduct a cumulative effects assessment that specifically models the intersection of DGR construction noise, light, and traffic with existing forestry and mining pressures in the region. This is necessary to determine if the project will push the local ecosystem past a threshold of resilience for sensitive ungulates. Finally, we strongly recommend the establishment of an Indigenous-led wildlife monitoring program that incorporates Traditional Ecological Knowledge (TEK) to track species presence and health in real-time.

Conclusion

The current exclusion of caribou from the Revell Site studies represents a significant regulatory risk. By ignoring a species of such high cultural and ecological importance, the proponent has failed to provide a comprehensive picture of the project's potential impacts. A robust impact assessment must recognize that the Revell site is part of a living, interconnected ecosystem where industrial disruptions 61 km away can have profound regional consequences for the survival of the tuktu.