PFAS
PFOA in your water
Is PFOA in drinking water dangerous?
It depends on the level and how long you're exposed. The EPA legal limit (MCL) for PFOA is 4 ppt. The EPA also sets a non-enforceable health goal (MCLG) of 0 ppt. Meeting the legal limit isn't the same as zero risk — test your water to know your level.
How do you remove PFOA from water?
PFOA is treated by Reverse Osmosis and Whole-House Carbon Filter. Choose a system independently certified to NSF/ANSI standards to reduce PFOA, and test your water first to confirm the level.
Source: EPA MCL / MCLG; WHO guidelines; NSF/ANSI · 2026
Health effects
PFOA is a long-lived "forever chemical" once used to make nonstick and stain-resistant products. It builds up in the body over time and is associated with certain cancers, immune effects, and developmental harm. EPA finalized a strict drinking-water limit for it in 2024.
The health-based goal vs. the legal limit
The federal legal limit (MCL) is the maximum allowed by law. The EPA health goal (MCLG) is the level below which no health risk is expected — it is non-enforceable and often stricter than the legal limit.
EPA health goal (MCLG)
0 ppt
Federal legal limit (MCL)
4 ppt
Source: EPA National Primary Drinking Water Regulations (MCL / MCLG) · 2026
What removes PFOA
Semipermeable membrane filtration
Reverse Osmosis
Pushes water through a fine membrane that removes the dissolved solids most filters miss.
Look for: NSF/ANSI 58 certification
How it works→Activated carbon adsorption
Whole-House Carbon Filter
A point-of-entry carbon bed that strips chlorine, chloramine, and chemical taste from every tap.
Look for: NSF/ANSI 42 certification
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Is PFOA in your water?
Check your city's public record, then book a free 30-minute test to confirm what's in your home.