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15 June 2022 The EPA issued interim updated drinking water health advisories for PFOS and PFOA, drastically lowering previous levels from 70 ppt for both to 0.02 ppt for PFOS and 0.004 ppt for PFOA. The agency also issued final health advisories for HFPO-DA and its ammonium salt GenX at 10 ppt and for PFBS at 2000 ppt. [ 120 ]
The Swedish National Food Agency recommends a drinking water limit of 0.09 μg/L for the sum of 11 PFASs (PFBS, PFHxS, PFOS, 6:2 FTSA, PFBA, PFPeA, PFHxA, PFHpA, PFOA, PFNA and PFDA). If PFASs are found above this limit in drinking water, immediate action is recommended to reduce the PFAS concentration in the drinking water to as far below the ...
In 2020 the Michigan Department of Environment, Great Lakes, and Energy (EGLE) adopted stricter drinking water standards in the form of maximum contaminant levels (MCLs), lowering acceptable levels from the 2018 enforceable groundwater cleanup levels of 70 ppt to 8 ppt for PFOA and 16 ppt for PFOS and adding MCLs for 5 previously unregulated ...
Public water systems in New Jersey are required to meet an MCL standard of 13 ppt. [186] [187] In 2020 the state set a PFOA standard at 14 ppt and a PFOS standard at 13 ppt. [188] In 2019 NJDEP filed lawsuits against the owners of two plants that had manufactured PFASs, and two plants that were cited for water pollution from other chemicals.
In August 2020, the Michigan Department of Environment, Great Lakes, and Energy adopted stricter drinking water standards in the form of MCLs, lowering acceptable levels from the 2018 enforceable groundwater cleanup levels of 70 ppt to 8 ppt for PFOA and 16 ppt for PFOS and adding MCLs for 5 previously unregulated PFAS compounds PFNA, PFHxA ...
"The combined intrinsic properties justifying the inclusion as a substance for which there is scientific evidence of probable serious effects to human health and the environment which give rise to an equivalent level of concern are the following: very high persistence, high mobility in water and soil, high potential for long-range transport ...
The standards, enforced by EPA and state agencies, require all public water systems in the U.S. to monitor for GenX and treat their water, if necessary to meet the 10 ppt standard. [43] EPA also announced the availability of grant funds to assist small and disadvantaged communities in testing for and treating PFAS contamination in their water ...
The state also set a PFOS standard at 13 ppt. [24] The state had set a standard for PFNA in September 2018, with an MCL of 13 ppt. [25] [26] In August 2020 the State of Michigan adopted drinking water standards for 5 previously unregulated PFAS compounds and lowered acceptable levels for 2 previously regulated compounds PFOS and PFOA to 16 ppt ...