EPA's New Limits on PFAS , in Drinking Water Could Be , Upended by the Supreme Court.br 'Newsweek' reports that the United States Supreme Court br is scheduled to hear a case against new water rules put br in place by the Environmental Protection Agency (EPA).br 'Newsweek' reports that the United States Supreme Court br is scheduled to hear a case against new water rules put br in place by the Environmental Protection Agency (EPA).br In April, new national limits were placed on per- br and polyfluoroalkyl substances in the nation's br drinking water, otherwise known as PFAS. .br Also known as "forever chemicals," br PFAS have been linked to a number of br health concerns, including cancer.br According to the EPA, of the 66,000 public drinking water br systems impacted by the new limits, an estimated 6 to br 10 will need to make updates to meet the new standards.br According to San Francisco, the EPA's new br "narrative" regulations fail to meet the Clean Water br Act's requirement to lay out clear restrictions.br The lawsuit headed to the Supreme Court accuses the EPA of setting vague rules without quantifiable standards.br Rather than specify pollutant limitsbr that tell the permitholder how much br they need to control their discharges br as required by the CWA, these br prohibitions effectively tell br permitholders nothing more than br not to cause 'too much' pollution, Lawyers representing San Francisco, via 'Newsweek'.br These generic water quality terms br expose San Francisco and numerous br permitholders nationwide to br enforcement actions while failing br to tell them how much they need br to limit or treat their discharges br to comply with the Act, Lawyers representing San Francisco, via 'Newsweek'.br We simply want to know in advance br what requirements apply to us, and br we want the EPA to fulfil its duty br under the Clean Water Act to br determine those requirements. , Lawyers representing San Francisco, via 'Newsweek'.br 'Newsweek' points out that the Supreme Court has sided againstbr the EPA in the past, most recently in 2022 when it ruled br 6-3 against the Biden administration's climate agenda. .br 'Newsweek' points out that the Supreme Court has sided againstbr the EPA in the past, most recently in 2022 when it ruled br 6-3 against the Biden administration's climate agenda.