The Ontario Superior Court of Justice decision in Egan v. National Research Council of Canada, 2026 ONSC 1429, is a landmark in Canadian environmental class action law. For the first time, punitive damages have been certified as a common issue against the federal government in a PFAS (“forever chemical”) drinking water contamination class action, based on the government’s delay in notifying residents of potential contamination.
The claim for punitive damages is for $2 million and is distinct from the separate $40 million claim for compensation related to the diminution in class members’ property value due to the stigma associated with PFAS contamination in their drinking water.
Legal Context and Procedural History
The plaintiffs allege that the National Research Council of Canada (NRC) failed to warn residents about PFAS contamination risks to their properties and drinking water. They claim the NRC knew, or ought to have known, of the risk as early as March 2013, but did not notify residents until December 2015— making this 2.5-year delay a basis for punitive damages.
Initially, the court declined to certify punitive damages due to insufficient evidence of deliberate delay. However, the Certification Order (2021 ONSC 4561) allowed for amendment if further evidence emerged:
“If evidence is discovered that NRC knew and failed to advise the proposed class members of possible contamination of their drinking water by toxic PFAS compounds for approximately 2 years, then it is not plain and obvious that they would not be successful on such a claim. The claim is premature at this time and if such evidence is discovered, the pleadings could be amended.” (para 43)
Key Evidence Relied Upon
The plaintiffs’ motion to certify punitive damages as a common issue was supported by a substantial evidentiary record, including:
- Historical Environmental Reports: Reports from 2004 and 2009 warned of contamination risks and recommended monitoring.
- March 2013 Environmental Report: Confirmed PFAS in groundwater, surface water, and soil at the NRC site, with groundwater flowing toward class members’ lands.
- Internal Federal Government Critiques: An Innovation, Science and Economic Development Canada report criticized the NRC for failing to apply the precautionary principle and for delays in notifying residents:
- “NRC staff were first made aware by Stantec in March 2013 that PFAS appeared to have migrated into the groundwater and surface water system, yet residents were only advised nearly three years later in December 2015.” (Egan v. National Research Council of Canada, 2025 ONSC 2533, at para 11)
- Ontario Ministry of the Environment, Conservation and Parks Correspondence: The MECP noted inadequate monitoring of residential wells and the need for off-site groundwater monitoring in the impacted residential community.
- NRC Witness Testimony: An NRC witness could not explain why the NRC failed to follow the Ministry’s advice to drill offsite and monitor PFAS contamination, nor explain what further information was needed to begin such testing—even more than 11 years after PFAS was first discovered on the NRC site. This testimony was pivotal in demonstrating the NRC’s awareness of the risk and its failure to act on clear regulatory advice.
The Court’s Reasoning on Punitive Damages
The court reiterated that punitive damages require “malicious, oppressive and high-handed” conduct—a marked departure from ordinary standards. The evidence of the NRC’s awareness, failure to heed recommendations, and delayed notification could, if proven, may meet this threshold:
“I am not satisfied that if this conduct or lack thereof is proven that there is no reasonable prospect that punitive damages could be awarded. The failure to warn the neighbouring residents that their drinking water was or may be contaminated by PFAS chemicals may be found to ‘offend the court’s sense of decency.’ For this reason, the amendment to the pleadings regarding punitive damages is granted.” (Egan v. National Research Council of Canada, 2026 ONSC 1429, at para 21)
Broader Legal Significance
This decision signals a shift in Canadian environmental law, highlighting the role of class actions in holding institutions accountable for environmental harm and associated impacts on residential property value. It clarifies the evidentiary threshold for punitive damages claims and underscores the importance of timely, precautionary action by public bodies, especially regarding PFAS contamination in drinking water.
As PFAS contamination remains a national concern, this precedent will likely influence future environmental class actions and the remedies available to affected communities. The decision highlights the increasing scrutiny of governmental bodies regarding environmental contamination and the potential for significant liability, including punitive damages, when there is evidence of knowledge and inaction.
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