Where can I find more specific information regarding whether my private bedrock water well is in a high probability arsenic or uranium location?
You may use the Well Locator Tool for Obtaining Arsenic and Uranium Probability Estimates to enter a street address and town name to obtain information regarding the probability that your bedrock well water may not meet the public drinking water standards for arsenic and uranium. Also, Town Maps showing the arsenic and uranium probability zones are available. Both the well locator tool and the applicable town maps for uranium probability zones identify areas of bedrock that are mapped as granite or pegmatite that are located outside of the area covered in the USGS Scientific Investigations Report 2011-5013. Although no probability statistics for the occurrence of uranium is available for these specific granite or pegmatite units, bedrock wells in these types of rock generally have an increased chance of containing naturally occurring radon, radium, and uranium concentrations exceeding the drinking water limits.
