Key Takeaways
- State regulation of PFAS in landfill leachate is advancing. More than a dozen states now have enforceable PFAS thresholds in biosolids and at least a dozen more are currently developing limits. As a result, many wastewater treatment plants are evaluating or implementing PFAS source control and pretreatment requirements.
- Solid waste operators face expanding liability and monitoring requirements. Increased scrutiny will affect discharge limits, reporting obligations and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) exposure.
- Treatment strategies must balance today’s compliance needs with future PFAS destruction technologies.
PFAS Regulations Continue to Evolve
On February 6, 2026, the U.S. Environmental Protection Agency (EPA) issued an update outlining its ongoing actions on per- and polyfluoroalkyl substances (PFAS). “We are focused on real results to protect families, farmers, and small businesses. That means locating PFAS, stopping it from getting into drinking water, cleaning it up where it’s already a problem and holding polluters accountable,” it said.
The agency’s September 2025 Unified Agenda confirmed that it plans to propose new Effluent Limitation Guidelines (ELGs) targeting PFAS in landfill leachate in 2026.
The direction is clear. Federal regulators are moving toward tighter oversight of PFAS in solid waste management.
Why This Matters for Solid Waste Operators
- Expanded monitoring and reporting requirements
- Potentially stricter leachate discharge limits
- Continued liability exposure under CERCLA
- Accelerated guidance on PFAS disposal and treatment
- Increased enforcement from State agencies
These shifts increase both regulatory risk and litigation exposure for the solid waste sector.
The Treatment Challenge
While treatment technologies can remove PFAS from leachate, many processes concentrate the contaminants into secondary waste streams. These residuals require additional treatment or destruction.
Emerging destruction technologies offer promise, but their effectiveness depends heavily on the initial concentration of PFAS entering the system. This creates a practical challenge for landfill operators who must address contamination today while the long-term destruction market continues to evolve
Integrated Technologies to Reduce PFAS Risk
Several treatment approaches now focus on concentrating and removing PFAS efficiently.
For example:
- FOAM-X™ fractionation concentrates PFAS to levels suitable for downstream destruction technologies
- NanoSORB™ combines biological treatment with PFAS removal in the same treatment vessels, reducing the need for additional downstream systems
- SORBIX™ RePURE combines regenerable ion exchange with SuperLoader technology to concentrate for destruction or immobilization
FOAM-X™ in Action
The Kent County Department of Public Works in Michigan implemented FOAM-X™ foam fractionation technology paired with SuperLoader™ to address PFAS in landfill leachate.
Across three landfill sites, the system treats more than 31 million gallons of leachate per year, reducing PFAS concentrations to non-detect levels in treated water.
What Comes Next for PFAS Management
The long-term goal for PFAS treatment is complete mineralization, where PFAS compounds are fully destroyed rather than transferred between waste streams. That technology pathway is still developing.
In the near term, landfill operators should focus on strategies that:
- Contain PFAS within controlled treatment systems
- Break the cycle of environmental redistribution
- Integrate with existing infrastructure
- Maintain flexibility for future destruction technologies
Regulatory frameworks remain uneven, but the direction is clear; there will be increasing expectations for monitoring, transparency and remediation. Organizations that act early will be better positioned to navigate the next phase of PFAS regulation.