Federal court rules against EPA in lawsuit over fluoride in water

A federal court in California ruled late Tuesday against the Environmental Protection Agency, ordering officials to take action over concerns about potential health risks from currently recommended levels of fluoride in the American drinking water supply.

The ruling by District Court Judge Edward Chen, an appointee of former President Barack Obama, deals a blow to public health groups in the growing debate about whether the benefits of continuing to add fluoride to the water supply outweighs its risks.

Environmental nonprofit Food & Water Watch and a handful of anti-fluoride groups, like the Fluoride Action Network, have been in court for nearly a decade after the EPA denied their petition against local water utilities adding in the mineral.