The EPA expects to propose national primary drinking water limits for PFOA and PFOS in the fall of 2022, with a final rule by fall of 2023. This would be the first-ever MCLs for PFAS set by the agency. In 2016, the EPA issued a Health Advisory of 70 ppt combined for PFOA and PFOS. Many expect the EPA’s new limits to be dramatically lower.
While the federal regulatory landscape heats up, many states have issued their own MCLs, health advisories, and other limits for PFAS in drinking water. Some limits are aligned to the EPA’s health advisories, while other levels are lower than the EPA’s. Some states have also gone beyond PFOA and PFOS, setting limits for additional PFAS compounds, such as PFNA, PFBS, PFHxS, and PFHpA.
The EPA’s Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) requires all public water systems serving more than 3300 customers and a randomly selected group of 800 small systems to begin sampling in 2023 for 29 PFAS plus lithium.
The EPA has two validated methods for analyzing PFAS in drinking water that can be used for compliance. Other test methods can be used to analyze for non-targeted PFAS and total organofluorines (TOF).
We’re certified/accredited by NELAC, ISO, DOD, DOE, and in every state with a PFAS lab certification program.
For emergencies, our Rapid Response Team can provide defensible results in as little as 24 hours.
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We can test for PFAS in both solid and aqueous matrices, including potable and non-potable waters, soils, and biota.
We’re on the leading edge of science, working with EPA, DOD, ASTM, and others to develop new methods for analyzing PFAS.