The new EPA regulation provides a critical step in addressing PFAS contamination in drinking water. Reducing PFAS in drinking water offers a range of potential health benefits, both for individuals and the population as a whole, including lower cancer risk, improved immune function, reduced risk of birth complications, lower cholesterol levels and developmental advantages in children.

While this rule only targets a specific set of PFAS compounds, it represents significant progress in protecting public health. The EPA estimates the new PFAS regulation will yield significant public health benefits over time, including the prevention of thousands of deaths and reduced instances of serious illness.

In short, yes. Readily available water filtration systems can remove most PFAS from home drinking water that has not already been municipally treated. 

Carbon block filters, RO and some ion exchange resin systems that are certified to remove PFAS will carry a “NSF/ANSI 53” or “NSF/ANSI 58” label. RO systems are considered the most effective at removing a variety of contaminants, including PFAS. Some types of activated carbon filters, particularly those designed specifically for PFAS removal, can be effective. 

It is critical that once in use, these systems also be maintained with new, regularly scheduled filter changes. The EPA offers more information on what to look for in home systems.

The effectiveness of different methods for removing PFAS at home can vary depending on the specific type of PFAS and the level of contamination in your water. No single home filtration method is guaranteed to completely eliminate PFAS.

If you're concerned about PFAS in your drinking water, it's also recommended that you have your water tested by a certified laboratory. This can help you determine the level of PFAS contamination and choose the most appropriate treatment option.

Regardless of the treatment method used, the process of PFAS removal generates a concentrated waste stream containing PFAS. Traditional wastewater treatment processes, like those focused on removing bacteria and organic matter, are largely ineffective at eliminating PFAS. 

Several technologies show promise for PFAS removal in wastewater, but they are still under development. For example, similar to municipal water treatment, advanced GAC or ion exchange resins specifically designed for PFAS capture are being explored. 

In addition, high-pressure membrane filtration systems like nanofiltration or RO can be effective, but they can be expensive and generate significant PFAS-laden solid or liquid brine wastes. High-temperature incineration can destroy PFAS compounds, but this method raises concerns about air pollution and significant energy inputs.

Treating PFAS in wastewater is an ongoing challenge that requires ongoing research and development of new technologies.