A federal appeals court unanimously rejected an industry lawsuit challenging the Environmental Protection Agency’s 2024 designation of two PFAS—“per- and polyfluoroalkyl substances”—as hazardous substances, marking the first federal hazard standard for the so-called “forever chemicals.”
The U.S. Chamber of Commerce led the challenge to the EPA rule, arguing overreach. The court’s unanimous decision clears the path for the regulation to take effect, marking a rare enforcement win for environmental protection in an era of aggressive deregulation pushback.
PFAS are synthetic chemicals used in industrial manufacturing, firefighting foams, and food packaging coatings. They persist indefinitely in the environment and the human body without breaking down—hence the “forever” label. The two PFAS targeted by the 2024 rule, PFOA and PFOS, are among the most studied and have been detected in groundwater, surface water, and drinking supplies across agricultural regions nationwide.
For farming communities, PFAS contamination poses direct threats. The chemicals have been found in irrigation water used on crops, in livestock operations, and in groundwater where farmers draw well water. Their persistence means they bioaccumulate through food systems, creating exposure pathways for farmworkers and consumers. Recent glyphosate research has shown farmers understand the economics of chemical exposure, and PFAS present a similar but longer-term calculus.
The EPA’s 2024 rule reflects the agency’s determination that PFAS pose documented health risks at low environmental doses. This regulatory approach has faced fierce opposition from manufacturers and industrial users who lobbied hard against the designation.
The court’s decision affirms that science, not corporate lobbying, ultimately guides environmental protection standards—a principle increasingly under pressure. Just weeks ago, big food companies sued to block new food-safety regulations, and USDA conservation funding has faced legislative threats from consolidation-friendly lawmakers.
For regenerative and organic farmers, the ruling validates that water and soil quality protection has legal standing. However, groundwater remediation remains complex and costly, particularly in regions where PFAS has already accumulated in aquifers.
State agencies and municipal water systems now must test supplies and implement remediation where PFAS exceeds federal limits. Rural communities relying on well water will shoulder significant compliance burdens. Agricultural operations in affected regions face increased testing, monitoring, and potential remediation costs.
The EPA has identified thousands of PFAS variants in commerce. This ruling covers only two. Environmental advocates and farmworker organizations are pressing the agency to accelerate review of other high-risk PFAS already documented in agricultural soils and water systems—a process that, left to industry negotiation, could take decades.
