Nearly half of U.S. tap water contains PFAS “forever chemicals,” heavy metals and radioactive contaminants linked to cancer and developmental harm. EWG data shows carcinogens like chloroform and hexavalent chromium contribute to thousands of lifetime cancer cases. A Guardian/Consumer Reports study found PFAS in 117 of 120 samples. EPA limits remain weak, while chemical giants hid risks for decades. Reverse osmosis or carbon filters and well-water testing are essential.
