A new U.S. Geological Survey study has found high levels of arsenic and uranium in private drinking water wells across Connecticut.
The study says nearly 4% of private wells contain water with arsenic, and 4.7% of wells with uranium, at concentrations higher than the federal drinking water standards set by the Environmental Protection Agency.
Many of those wells are in southwestern and northeastern Connecticut.
State officials have urged all private well owners to have their water tested for possible arsenic and uranium, which could pose potential health risks.
Officials also recommend that they contact an environmental lab approved to test water.