Draft National Recommended Ambient Water Quality Criteria for the Protection of Human Health for Perfluorooctanoic Acid, Perfluorooctane Sulfonic Acid, and Perfluorobutane Sulfonic Acid; Correction
Published Date: 1/15/2025
Notice
Summary
The EPA fixed a tiny but important typo in their water safety numbers for three chemicals called PFOA, PFOS, and PFBS. This correction means the safe level for PFOA in water and organisms is now 10 times higher than first announced. People who care about clean water and health should check the updated numbers and send their thoughts by February 24, 2025.
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Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
EPA corrects PFAS draft safety numbers
You should note that the EPA corrected draft human-health water-quality numbers for three PFAS chemicals. The PFOA 'organism-only' human health criterion was corrected from 0.00036 ng/L to 0.0036 ng/L; the table lists PFOA water+organism 0.0009 ng/L, PFOS water+organism 0.06 ng/L and organism-only 0.07 ng/L, and PFBS water+organism 400 ng/L and organism-only 500 ng/L. If you want to comment on these draft criteria, send comments by February 24, 2025.
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