18 unregulated chemicals were found in drinking water from more than one-third of U.S. water utilities in a nationwide sampling, according to new, unpublished research by federal scientists.
Included are 11 perfluorinated compounds, an herbicide, two solvents, caffeine, an antibacterial compound, a metal and an antidepressant.
Researchers from the U.S. Geological Survey and the Environmental Protection Agency analyzed single samples of untreated and treated water from 25 U.S. utilities that voluntarily participated in the project.
Twenty-one contaminants were detected – mostly in low concentrations of parts per trillion – in treated drinking water from at least nine of the utilities. Eighteen of the chemicals are not regulated under the federal Safe Drinking Water Act so utilities do not have to meet any limit or even monitor for them.
By Brian Bienkowski
Environmental Health News