EPA Urged to Enhance PFAS Regulation for U.S. Public Water Systems

EPA's PFAS Regulation Progress

In April 2024, the EPA established maximum contaminant levels (MCLs) for six PFAS, requiring public water systems to comply by April 2029. These regulations apply to common PFAS such as perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), with limits set at 4 parts per trillion. According to the GAO report, while the regulation is a significant step forward, the majority of water systems are not fully prepared for compliance.

Treatment and Waste Management Challenges

A survey conducted by the GAO revealed that 77% of public water systems in six states have yet to implement PFAS treatment solutions. Granular activated carbon is the most used treatment method, but it generates PFAS-contaminated waste that presents additional disposal challenges. Public water systems are uncertain about how to safely manage this waste due to unclear regulatory guidance.

The report also highlights that most systems (68%) have not yet considered waste management methods, with many relying on landfills and incineration without a clear understanding of long-term impacts. The absence of federal regulatory standards on PFAS disposal adds to the confusion.

Need for Communication and Financial Support

The GAO found that 86% of large water systems face difficulties communicating the health risks of PFAS to the public. Although the EPA introduced a PFAS Communication Toolkit, many systems are unaware of its existence. Additionally, financial constraints are a significant barrier, with systems struggling to secure funding for both treatment implementation and ongoing waste management.

Recommendations for the EPA

To address these issues, the GAO made four key recommendations:

1. Establish a clear timeline for issuing communication resources to help water systems effectively inform customers about PFAS health risks.
2. Develop a compliance guide tailored for small public water systems to meet the 2029 deadline.
3. Improve dissemination of funding opportunities to help public water systems address PFAS contamination.
4. Create a consolidated resource summarizing federal regulations on PFAS waste disposal, including recent designations under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).

Future Implications

The EPA’s forthcoming actions on these recommendations are crucial as public water systems face increasing pressure to meet the 2029 regulatory deadline. Without clear guidance and financial support, many systems, particularly in rural or disadvantaged communities, may struggle to comply, potentially leaving millions of Americans at risk of PFAS exposure in their drinking water.