Thoughts, Emphasis, Recommendations for Impact Statement Guidelines

The proposed Deep Geological Repository (DGR) for Canada’s Used Nuclear Fuel Project represents one
of the most consequential and long-duration industrial, environmental, intergenerational, and
governance decisions in Canadian history.

A foundational requirement for the assessment is the statutory definition of "management" under the
Nuclear Fuel Waste Act, assented 2002. Parliament defines management, "in relation to nuclear fuel waste, means as long-term
management by means of storage or disposal, including handling, treatment, conditioning or transport
for the purpose of storage or disposal" (Parliament of Canada, 2026).

This definition is highly significant because it establishes that management encompasses the entire
lifecycle of used nuclear fuel, not merely its final placement in an underground repository. The legal
duty extends to every activity required to prepare, move, contain, monitor, and ultimately isolate the
waste. Handling, treatment, conditioning, transportation, storage, and disposal are all integral
components of one continuous management system.

Accordingly, the Impact Statement must provide a deep and comprehensive examination of each of
these activities and their interactions. The assessment should not treat transportation as a secondary
logistical matter, conditioning as a technical pre-processing step, or monitoring as an operational detail.
Each element is a core requirement of management and therefore warrants substantial relevance,
deliberation, and concrete measures.

For every component of the management system, the Impact Statement should identify:

The purpose and function of the activity
Technical methods and design assumptions
Safety objectives and performance criteria
Potential failure modes
Environmental and health impacts
Social, cultural, and economic implications
Indigenous rights and governance considerations
Emergency response requirements
Monitoring and adaptive management measures
Roles, responsibilities, and accountability
Financial assurance mechanisms
Intended and unintended consequences over short, medium, long-term, and deep-time horizons.

The Impact Statement should also assess how these components interact as an integrated system. Risks
arising from transportation affect storage and disposal. Conditioning assumptions influence long-term
containment. Institutional failures may compromise monitoring and emergency response. Climate
change, human intrusion, and societal change can alter the performance and governance context of all
management activities.

The proposed DGR therefore must be evaluated as a complete lifecycle management system with
interdependent technical, environmental, social, ethical, and governance dimensions. Demonstrating
the safety of the underground repository alone is insufficient. The proponent must show that the full
management system is robust, resilient, accountable, and adaptable under conditions of deep
uncertainty.

As time goes on, this project is becoming a more consequential, complex undertaking.
What was once a conceptual proposal now becomes a matter of national
significance requiring rigorous public scrutiny. The breadth and depth of submissions from Indigenous
Nations, municipalities, scientists, lawyers, government, civil society organizations, business, industry, and
members of the public demonstrate both the complexity of the undertaking and the profound interest it
has generated. That level of engagement should be viewed not as a procedural formality, but as
evidence that the decisions ahead carry lasting implications for communities, ecosystems, and future
generations. Accordingly, the assessment process must be conducted through a genuinely independent,
transparent, and evidence-based hearing and decision-making process that is capable of testing
assumptions, weighing competing perspectives, confronting uncertainty, and earning durable public
confidence in whatever decision is ultimately reached.

The Draft Integrated Tailored Impact Statement Guidelines and the Generic Requirements for the
Preparation of an Impact Statement provide a substantial procedural framework. However, the
documents remain heavily weighted toward demonstrating project feasibility and regulatory compliance
rather than fully addressing uncertainty, irreversible risk, cumulative systems interactions,
intergenerational ethics, Indigenous sovereignty, and the reality that there is no universally proven
“safe” permanent solution for high-level nuclear waste over geological timescales.

The current framework would benefit from a stronger precautionary orientation, expanded systems
analysis, deeper independent oversight, and a broader understanding of risk beyond engineering
containment.

1. Overall Assessment,
Positive Elements in the Draft Framework

The current guidelines contain several strong foundational elements:

Recognition of Indigenous Knowledge and Indigenous participation
Integration with the Canadian Nuclear Safety Commission process
Long-term monitoring requirements
Consideration of cumulative effects
Multi-disciplinary impact analysis
Requirements for emergency planning and accident scenarios
Requirements for socio-economic analysis
Climate change considerations
Public participation and transparency expectations

These are important and necessary components.

However, the framework still reflects a traditional project-assessment model that is better suited to
conventional infrastructure projects than to a repository intended to contain hazardous radioactive
materials for hundreds of thousands of years.

The assessment must therefore evolve from:

“Can the project technically operate?”

to:

“Can humanity responsibly guarantee long-term containment, governance, stewardship, societal
continuity, ecological integrity, and justice across deep time under conditions of uncertainty?”

That distinction is fundamental.
 

2. Core Concerns Requiring Strengthening,
The Framework Understates Deep Uncertainty

The documents rely heavily on predictive modelling and engineered confidence. However, no
jurisdiction on Earth has yet demonstrated the complete lifecycle success of a permanent used nuclear
fuel repository over the timescales required.

The assessment framework should explicitly acknowledge:

Long-term uncertainty cannot be eliminated
Geological systems are dynamic rather than static
Human institutions are temporary
Political systems change
Economic systems collapse and evolve
Climate systems are increasingly unstable
Technological disruption may alter future risk conditions
Human conflict and geopolitical instability may affect stewardship

Recommendation

Require a dedicated “Deep Uncertainty and Unknowns Assessment” chapter that:

Identifies known unknowns and plausible unknown unknowns
Assesses confidence limits in modelling
Identifies irreducible uncertainty
Evaluates scenarios where core assumptions fail
Applies the precautionary principle explicitly

The framework should avoid overstating certainty where certainty does not exist.

3. Geological and Hydrogeological Concerns,
Geological Stability Must Be Treated as Dynamic, Not Static

The current framework appears overly reliant on assumptions of geological stability.

The assessment should include:

Long-term tectonic risk
Fault activation potential
Seismic uncertainty
Hydrogeological migration cycles
Permafrost changes
Groundwater pressure changes
Future erosion and glaciation scenarios
Climate-driven hydrological shifts

Northern Ontario has experienced multiple cycles and will continue to do so over the lifespan of the
waste.

There should be mandatory modelling for:

Multiple cycles
Extreme climate futures
Catastrophic water intrusion scenarios
Progressive containment degradation
Combined systems failure scenarios

Recommendation

Require independent peer review panels composed of:

Geologists
Hydrogeologists
Climate scientists
Systems risk experts
Indigenous land-based knowledge holders
International nuclear waste specialists

Independent reviewers should not be selected solely by the proponent or regulator.

4. Human and Institutional Failure,
Human Systems Failure is Insufficiently Addressed

The repository is not only an engineering project. It is a civilizational governance project.

The assessment framework insufficiently examines:

Institutional collapse
Loss of records
Future war or conflict
Economic decline
Corporate dissolution
Regulatory capture
Political instability
Long-term funding reliability
Knowledge transfer across generations

Recommendation

Require a “Civilizational Continuity and Institutional Failure Assessment” addressing:

Stewardship continuity
Governance redundancy
Archival durability
Multilingual and symbolic warning systems
Future land-use conflict
Risks of future intrusion
Funding trust sustainability over centuries
Long-term accountability structures

The project should be required to demonstrate governance durability, not only engineering durability.

5. Indigenous Rights, Governance, and Ethical Considerations,
Indigenous Participation Must Move Beyond Consultation

The current framework includes Indigenous consultation requirements, but the project’s scale requires
Indigenous jurisdiction and governance.

The assessment should explicitly address:

Free, Prior, and Informed Consent (FPIC)
Indigenous legal orders
Treaty relationships
Indigenous environmental governance systems
Cultural continuity
Intergenerational responsibilities
Land stewardship ethics

Recommendation

Require:

Indigenous-led assessment streams
Indigenous co-governance mechanisms
Independent Indigenous monitoring authorities
Indigenous-controlled environmental baseline studies
Indigenous veto or escalation mechanisms in the event of major risk findings
Long-term Indigenous stewardship funding

Indigenous Knowledge should not merely “inform” the project. It should be leading governance and
decision-making.

6. Intergenerational Ethics,
Intergenerational Justice is Underdeveloped

The repository transfers risk across many future generations who cannot consent.

The framework should explicitly examine:

Ethical obligations to future peoples
Long-term stewardship burdens
Intergenerational inequity
Irreversibility
Whether future societies inherit avoidable risk
Potential future technological alternatives

Recommendation

Create a dedicated “Intergenerational Ethics Assessment” examining:

Long-term moral obligations
Ethical reversibility
Retrieval options
Long-term stewardship responsibilities

Whether permanent disposal is ethically preferable to monitored retrievable storage.

This section should involve:

Ethicists
Indigenous Elders
Philosophers of technology
Future governance experts
Youth representatives
 

7. Systems Thinking and Cascading Risk,
The Assessment Must Move Beyond Linear Risk Analysis

The current framework appears too compartmentalized.

The DGR should instead be assessed as a complex adaptive system interacting with:

Ecological systems
Transportation systems
Human settlements
Regional economies
Political systems
Climate systems
Emergency response systems
Indigenous territories
Future industrial development

The framework lacks robust analysis of:

Cascading failures
Compound risks
Cross-sector interactions
Long-duration systemic risk
Unpredictable, rare occurrence events
Multi-event disaster scenarios

Recommendation

Require:

Systems dynamics modelling
Compound risk analysis
Long-duration resilience testing
Scenario planning exercises
Red-team reviews
Independent adversarial testing of assumptions

The assessment should intentionally attempt to break the model assumptions rather than merely
validate them.

8. Transportation Risks,
Transportation Risks Require Far Greater Scrutiny

Used nuclear fuel transportation across Canada over many decades introduces substantial risk.

Transportation is not a peripheral activity; it is an integral component of the legal and operational
responsibilities associated with nuclear fuel waste management. Under the Nuclear Fuel Waste Act,
"management," "in relation to nuclear fuel waste, means long-term management by means of storage or
disposal, including handling, treatment, conditioning or transport for the purpose of storage or disposal"
(Parliament of Canada, 2026).

This definition makes clear that transportation risks are inseparable from the overall project and must
be assessed with the same level of rigor as the repository itself. The safe movement of used nuclear fuel
from sites to the DGR is a core management duty and responsibility of the project proponent, not a
secondary logistical consideration.

The framework should assess:

Highway accidents
Rail incidents
Terrorism or sabotage
Wildfire disruptions
Flooding impacts
Infrastructure deterioration
Winter weather risks
Emergency response limitations in remote regions

Recommendation

Require:

Regional emergency capacity mapping
Worst-case accident modelling
Community evacuation modelling
Public health preparedness analysis
Independent transportation corridor assessments
Cross-provincial coordination planning

Communities along transportation corridors must be treated as directly affected communities.

9. Environmental and Ecological Concerns,
Ecological Impact Assessment Needs Greater Depth

The current framework should expand analysis regarding:

Long-term groundwater contamination
Bioaccumulation
Food web contamination
Impacts on fisheries
Boreal ecosystem fragmentation
Species-at-risk vulnerability
Wetland disturbance
Surface-groundwater interactions

The framework insufficiently addresses low-probability/high-consequence ecological contamination
pathways.

Recommendation

Require:

Multi-generational ecological modelling
Ecosystem threshold analysis
Worst-case contamination mapping
Indigenous harvesting impact studies
Long-term wildlife health monitoring

10. Socioeconomic and Regional Development Impacts,
Economic Analysis Must Include Dependency and Distortion Risks

The project may create employment and infrastructure investment. However, the framework
insufficiently assesses:

Economic dependency
Boom-bust cycles
Housing pressures
Labour market distortions
Infrastructure strain
Social division
Reputational effects on regional branding
Tourism impacts
Long-term post-closure economic transition

Recommendation

Require:

Regional diversification strategies
Long-term transition planning
Community resilience indicators
Mental health and social cohesion assessments
Independent economic cost-benefit analysis
Comparative scenario analysis

The assessment should evaluate whether the repository could unintentionally lock the region into a
narrow economic identity tied to nuclear waste management.

11. Emergency Preparedness and Worst-Case Scenarios,
Worst-Case Scenarios Must Be More Explicit

The framework currently appears to emphasize expected operational performance.

It must also rigorously assess:

Severe containment failure
Water infiltration
Long-term radionuclide migration
Major transportation accidents
Wildfire impacts
Cybersecurity threats
Sabotage or conflict
Simultaneous multi-system failure

Recommendation

Require:

Public release of worst-case scenario modelling
Independent emergency preparedness audits
Full-scale emergency simulations
Long-term contamination remediation scenarios
Financial liability analysis

The public deserves visibility into the upper bounds of risk.

12. Climate Change and Deep Time,
Climate Change Analysis Must Extend Far Beyond Standard Forecast Horizons

Traditional climate forecasting windows are inadequate for this project.

The assessment should consider:

Multi-century climate instability
Glacial return scenarios
Extreme hydrological change
Forest composition shifts
Wildfire regime transformation
Future water-table changes

Recommendation

Require climate modelling across:

100 years
1,000 years
10,000 years
Multiple glacial cycles

The repository must be stress-tested against radically different planetary futures.

13. Transparency and Public Trust,
Public Confidence Requires Stronger Independent Oversight

Public trust cannot rely solely on assurances from the proponent and regulator.

Recommendation

Establish:

Independent citizen oversight panels
Open-access scientific data repositories
Third-party auditing
Public monitoring dashboards
Whistleblower protections
Reassessment requirements every 5-10 years

The project should remain socially reviewable over time rather than treated as permanently settled.

14. Reversibility and Adaptive Management,
Reversibility Must Be Central

Permanent disposal assumes present-day decisions remain optimal indefinitely.

Future generations may possess:

Better technologies
Better containment methods
Advanced transmutation capabilities
Different ethical frameworks

Recommendation

Require:

Long-duration retrievability analysis
Adaptive management pathways
Decision pause points
Periodic reassessment checkpoints
Reversibility thresholds before final closure

The project should preserve future optionality wherever feasible.

15. What is Fundamentally Missing

Taken together, the gaps identified throughout this review point to a broader issue: the current
assessment framework remains rooted in a conventional project-approval model, whereas the proposed
DGR is a deep-time societal undertaking with consequences that extend beyond normal planning
horizons.

A repository for used nuclear fuel must be understood as an enduring commitment involving geology,
ecology, Indigenous rights, governance, economics, ethics, and public trust. Each of these dimensions
introduces uncertainty and responsibilities that cannot be fully addressed through technical design
alone.

The following missing elements should therefore be incorporated explicitly into the final Impact
Statement Guidelines to ensure the assessment is sufficiently precautionary, comprehensive, and
future-oriented.

Key Missing Elements

The following major gaps should be added explicitly to the assessment framework:

1. Deep Uncertainty Assessment

A dedicated chapter on irreducible uncertainty and unknown unknowns.

2. Intergenerational Ethics Assessment

Ethical implications across deep time.

3. Institutional Failure Analysis

Governance collapse and stewardship failure scenarios.

4. Systems Risk and Cascading Failure Modelling

Complex systems interactions and compound crises.

5. Independent Adversarial Review

Formal red-team testing of assumptions.

6. Future Scenario Planning

Alternative future civilization and climate trajectories.

7. Long-Term Funding Security Analysis

Whether stewardship financing remains viable over centuries.

8. Human Intrusion and Future Resource Conflict Analysis

Potential future excavation, mining, or accidental intrusion.

9. Durability Assessment

Whether consent and legitimacy can persist across generations.

10. Ethical Comparison of Alternatives

Comparison with:

Extended monitored storage
Advanced reprocessing technologies
International collaboration approaches
Emerging waste reduction technologies

16. Strategic Recommendation

The strategic challenge before Canada is not simply how to dispose of used nuclear fuel, but how to
govern long-lived hazards responsibly in a way that protects people, ecosystems, and future
generations.

This requires a decision-making framework that is humble about uncertainty, rigorous in its analysis, and
adaptive over time. It also requires institutions capable of maintaining trust and accountability long after
current political and organizational structures have changed.

The recommendations are intended to strengthen the assessment process so that it better
reflects the scale and permanence of the undertaking.

Apply the Precautionary Principle More Explicitly

The assessment process should formally recognize that:

High-level nuclear waste cannot be rendered harmless within human timescales;
Long-term certainty is impossible;
Consequences of failure may be irreversible;
The burden extends across generations.

Therefore, the project should be evaluated under an enhanced precautionary framework.

The burden should not simply be:

“Demonstrate probable safety.”

It should also be:

“Demonstrate societal, ecological, institutional, and ethical resilience under deep uncertainty.”

Canada has a responsibility to manage the legacy of its nuclear energy system in a way that reflects the
highest standards of science, ethics, governance, and reconciliation.

The proposed DGR may offer a technically credible pathway, but technical credibility alone is not
sufficient. The project must also demonstrate social legitimacy, institutional durability, and resilience
under conditions of profound uncertainty.

The final Impact Statement Guidelines should therefore ensure that all intended and unintended
consequences are thoroughly examined, including those that may emerge decades, centuries, or
millennia into the future.

The DGR for Canada’s Used Nuclear Fuel Project is not merely an infrastructure proposal. It is a long-
duration societal commitment with implications extending across environmental systems, Indigenous
rights, governance structures, future economies, and generations not yet born.

The Draft Integrated Tailored Impact Statement Guidelines and Generic Requirements provide an
important starting framework, but they remain insufficiently precautionary and insufficiently systems-
oriented for a project of this magnitude and duration.

The assessment process should therefore:

Expand beyond engineering confidence
Explicitly confront uncertainty
Strengthen independent oversight
Embed Indigenous governance
Address institutional fragility
Incorporate deep-time ethics
Evaluate cascading and systemic risks
Preserve future adaptability and reversibility

The central question is not only whether a repository can be engineered.

It is whether humanity can responsibly govern, steward, remember, and sustain such a commitment
across deep time.

That standard should guide the final assessment framework.

Reference

Parliament of Canada. (2026). Government Bill (House of Commons) C-27 (37-1) - Royal Assent - Nuclear Fuel Waste Act - Parliament of Canada. Parl.ca. https://www.parl.ca/DocumentViewer/en/37-1/bill/C-27/royal-assent