Nearly one in five wells in the United States contains traces of at least one element that exceeds human health standards set by the U.S. Environmental Protection Agency (EPA), according to a U.S.

The U.S. Geological Survey and the Connecticut Department of Public Health are warning state residents of the chance for higher than recommended levels of arsenic and uranium in their private well.

In a new report, the U.S. Geological Survey estimates 2.1 million Americans use water wells with high levels of arsenic, a naturally occurring metal linked to cancer, cardiovascular disease, diabetes ...

HINKLEY >> The U.S. Geological Survey has begun collecting private well water samples here as part of a $5.4 million study of the area to determine how much of a cancer-causing chemical in the ...

The U.S. Geological Survey will begin measuring groundwater levels Monday at some 1,400 wells in eastern and south-central Idaho. The project will take two weeks.

The U.S. Geological Survey and the Connecticut Department of Public Health are warning state residents of the chance for higher than recommended levels of arsenic and uranium in their private well.