The US Environmental Protection Agency (EPA) has revealed that it’s making some big changes to the first nationwide drinking water standard set by the Biden administration. Last year, the agency had finalized the standard, which aims to regulate the presence of “forever chemicals” called perfluoroalkyl and polyfluoroalkyl substances (PFAS) in drinking water across the country. There are thousands of different types of PFAS, but the rules specifically set limits for five: PFOA, PFOS, PFNA, PFHxS, and HFPO-DA. Now, the agency has revealed that it was only going to keep the Biden-era nationwide limits for PFOA and PFOS.
Exposure to forever chemicals has been linked to a variety of health issues, including cancer, liver damage and asthma. Under the rules set by the US government last year, the maximum levels of PFOA and PFOS in drinking water should be 4 parts per trillion only. PFNA, PFHxS and HFPO-DA (also known as GenX chemicals) were supposed to have a max limit of 10 parts per trillion. However, the agency is rescinding the regulations for those last three chemicals. To be fair, PFOA and PFOS are the two most common types of PFAS. The agency said that its “actions are designed to reduce the burden on drinking water systems and the cost of water bills” while still “continuing to protect public health.”
In addition to rescinding the limits for three out of the five forever chemicals, the EPA said it also intends to extend water utilities’ compliance deadline from 2029 to 2031 in order to give them more time to develop a plan that would allow them to meet the standard. This extension “will support water systems across the country, including small systems in rural communities, as they work to address these contaminants,” said EPA Administrator Zeldin.
