News and Information about Drinking Water Wells

Lawn and tree care pesticides are capable of filtering down through the soil and entering residential drinking water wells, even deep wells. Further testing of private wells is needed.

EPA Resources for Homeowners with Private Drinking Water Wells

Connecticut Department of Health: What is Radon?

Radon can enter a building through well water.

Because radon is not highly soluble in water, it can out-gas to the indoor air environment during household water use (e.g., showering, clothes washing). There is presently no federal or state standard for radon in public drinking water supplies.

A homeowner's first priority should be to test for radon in the air. If your home is served by a private well, you should also test for radon in the water. If the average of two or more waterborne radon tests is equal to or greater than 5,000 pCi/L, then the homeowner should consider treating the well water. The EPA and DPH recognize that typically, the greater health risks associated with radon are through the inhalation of radon gas and its decay products.

What You Need To Know About Naturally Occurring Radium in Private Well Water