By: Kristen Drake
As PFAS contamination funding expands, historical liability insurance may play a critical role in funding cleanup, defense, and environmental claims.
Wisconsin is beginning to move real dollars toward PFAS contamination cleanup and environmental response efforts. Lawmakers have advanced a $133 million funding measure following years of stalled efforts, marking a bipartisan breakthrough on how to address the issue (Associated Press).
The funding is intended to support communities dealing with long-running PFAS impacts, including areas where contaminated private wells have forced residents to rely on bottled water.
As Clean Wisconsin’s Government Affairs Director Erik Kanter noted, the legislation reflects “years of work toward compromise.” He also described PFAS contamination as “a widespread, costly public health and environmental crisis” affecting everyone from consumers to farmers and manufacturers.
For organizations and municipalities facing PFAS-related liabilities, the significance goes beyond this funding package. PFAS contamination is systemic, long-tail, and tied to complex questions of liability, insurance coverage, and funding.
Funding Is Only the Starting Point for PFAS Liability and Recovery
Legislative funding is an important step. But for many communities and organizations, it is unlikely to be enough. PFAS contamination rarely stems from a single source or a single moment in time. That complexity is often tied to:
- Historical operations that are no longer active
- Companies that have merged, dissolved, or changed names
- Practices that were standard at the time but are now heavily scrutinized
- Regulatory frameworks that did not exist when the contamination occurred
Public funding may help address immediate needs, but it does not answer the bigger question: who ultimately bears the cost of decades of contamination, including environmental cleanup costs, third-party claims, and regulatory compliance obligations?
As investigations expand and more parties are identified, that question becomes harder to ignore. This is often where the focus shifts from funding to recovery.
Because if liability reaches back in time, the potential sources of funding often do as well.
Why PFAS Contamination Creates Long-Tail Liability
PFAS claims are complex because they are tied to historical conduct, and they are typically the result of repeated use, disposal, and migration over extended periods of time. Releases were not always known or understood when they happened, and contamination can migrate through soil and groundwater long after operations ceased.
As a result, today’s PFAS contamination claims and environmental lawsuits often date back to operations that took place 20, 30, or even 50 years ago. That kind of timeline creates real challenges. Records are incomplete. Entities have changed or no longer exist. Key facts must be reconstructed.
But it also changes the financial landscape. Because when liability reaches back in time, it expands exposure, as well as the potential sources of recovery. Insurance programs in place during those earlier decades were often broader in scope and may respond to claims being asserted today.
Those policies are rarely easy to locate or prove. But once identified, they can represent a critical funding source tied directly to the time at which the liability arose.
The Overlooked Resource: Historical Liability Insurance Coverage for PFAS Claims
One of the most underutilized sources of funding in PFAS matters is historical liability insurance coverage. Many organizations assume coverage is unavailable because too much time has passed or because policies cannot be readily located. In practice, those assumptions are often incorrect.
General liability policies issued decades ago may still respond to PFAS-related environmental claims, contamination lawsuits, and property damage or bodily injury allegations today, particularly where the policy language predates modern pollution exclusions. These policies were designed to cover everyday business risks, including slip-and-fall incidents, as well as property damage and bodily injury arising from operations. PFAS claims often fit within that same framework.
When identified and reconstructed through insurance archaeology, these policies can provide meaningful financial support for defense costs, environmental investigation, and remediation efforts. For many organizations, this is a funding source that already exists but has not yet been fully explored.
In particular, commercial general liability (CGL) insurance policies issued prior to 1986 are often key to PFAS-related recovery efforts. Three features of those policies are especially important:
- Occurrence-Based Coverage
Older CGL policies are typically written on an occurrence basis, meaning they respond to property damage that takes place during the policy period, even if the claim is not brought until decades later.
For PFAS, where contamination may have occurred in the 1960s, 1970s, or 1980s but is only now being discovered, those historical policy years may still be triggered.
- Absence of the Absolute Pollution Exclusion
CGL policies issued before 1985/1986 generally do not contain the absolute pollution exclusion that appears in later forms.
As a result, these earlier policies may provide coverage for environmental liabilities, including investigation, cleanup, and defense costs, that would be excluded under more modern policy language.
- Coverage Does Not Expire
Liability policies do not lose their applicability simply because time has passed. If coverage was triggered during the policy period, the right to access that coverage remains.
PFAS claims do not change that principle. If the damage occurred during a covered period, those policies may still respond today.
What This Means for PFAS Claims, Environmental Liability, and Insurance Coverage Strategy
The Wisconsin legislation signals a more concrete response to the scale of PFAS exposure. But public funding alone will not resolve the issue.
For organizations facing potential PFAS liability, environmental exposure, or regulatory enforcement, the strategy cannot stop at grants or appropriations. It requires a broader investigation into all available financial resources. That includes historical insurance. Organizations that take this approach are better positioned to fund investigation, cleanup, and compliance efforts.
In PFAS matters, coverage strategy is not secondary. It is part of the response.
A Shift in How PFAS Liabilities and Environmental Claims Are Funded
PFAS is not just an environmental issue. It is a long-tail liability problem that intersects with insurance coverage.
As funding expands and investigation moves forward, more organizations and municipalities are going to find themselves pulled into the question of who is responsible for contamination tied to historical operations.
Historical liability insurance programs were put in place years ago to respond to exactly this type of risk. When those policies are located and reconstructed through insurance archaeology, they can become a meaningful source of funding tied directly to the time when the liability arose.
If you are evaluating PFAS exposure, environmental contamination claims, or historical liability insurance coverage, it is worth understanding what insurance assets may still be available. For questions or more information, please contact us.