Maine DWP Update: EPA Announces New PFAS Regulatory Standard

This update is coming to you from the Maine CDC Drinking Water Program.

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EPA Announces New PFAS Regulatory Standard

On April 10, 2024, the U.S. Environmental Protection Agency (EPA) announced the final National Primary Drinking Water Regulation (NPDWR) for six PFAS compounds in drinking water.

EPA finalized maximum contaminant levels (MCLs) for the six PFAS compounds noted below. These MCLs will apply to all Community and Non-Transient Non-Community (NTNC) public water systems.

 

EPA PFAS MCLs

* Parts-per-trillion (ppt) is also expressed as ng/L.

 

The Maine CDC Drinking Water Program is evaluating the new federal standard and will propose a final federally-aligned State standard through the rule making process.  As of now, the current interim standard of 20 ppt for six PFAS compounds (alone or in combination) is still in effect.  

If you have questions about these new standards and how they will impact your Public Water System, please contact 

Additional information is available online at the Drinking Water Program’s PFAS webpage and EPA’s webpage dedicated to the Final PFAS National Primary Drinking Water Regulation.

 

URLs

•  Maine Drinking Water Program

•  US EPA