USGS Report Shows Where Arsenic Most Likely Is in New England's Ground Water
Many private ground water wells in New Hampshire and Maine may have arsenic at concentrations close to or above federal safety standards for public water supplies. A recently released study by the U.S. Geological Survey (USGS) shows the likely locations of elevated arsenic. Bedrock aquifer wells - often known as rock, deep, or artesian wells - are the most common type of well installed for homes in the region and it is the bedrock aquifer that is the primary source of arsenic in the locations where it is elevated, according to the findings.
"Our study shows where the highest probability of having arsenic in wells occurs," USGS hydrologist Joseph Ayotte says. "We knew from previous studies that arsenic is a regional problem in New England. The information is intended to assist planners and health officials. It also is intended to help owners in deciding whether to test their well."