Most well-known as a poison once used between political or personal rivals, arsenic is now causing more problems at very low levels in our well water and food. We're looking into the sources of arsenic, the toxic effects it has on our health, and how to remediate it.
Wells in New Hampshire can contain any number of colorless, odorless chemicals. The three most common in descending order are Arsenic, Manganese and Radon.
Credit Sam Evans-Brown
This map estimates the probability of finding arsenic in a bedrock well. DES says even if you aren't in an area with high levels of arsenic, it's possible that other contaminants like radon or uranium are in your water.
About 40 percent of New Hampshire residents get their drinking water from private wells. The Department of Environmental Services is encouraging well owners to test their water for arsenic, but unlike municipal water supplies, testing isn’t mandatory. And colorless, odorless contaminants abound in the Granite State.