On April 10, 2024, the Environmental Protection Agency (EPA) established legally enforceable Maximum Contaminant Levels (MCLs) for six PFAS in public drinking water systems. PFOA, PFOS, PFHxS, PFNA, and HFPO-DA (also known as GenX) as contaminants with individual MCLs, and PFAS mixtures containing at least two or more of PFHxS, PFNA, HFPO-DA, and PFBS using a Hazard Index MCL to account for the combined and co-occurring levels of these PFAS in drinking water. Additionally, a health-based, non-enforceable Maximum Contaminant Level Goals (MCLGs) for these PFAS has been established. Some states may have recommended levels even lower than those provided by EPA. Check with your state environmental agency for more information. If your state has lower maximum levels for PFAS in drinking water, these levels supersede the EPA levels and should be used in its place. Well owners are encouraged to use these levels as a guideline when well water should be treated.
Our wellcare® PFAS information sheet has an easy to read table with MCLS and MCLGs for each contaminant and explains what you need to do to ensure your well water is safe.