Abstract or Description
Arsenic is a toxic heavy metal that has been detected in much of Maine’s well water, and its widespread occurrence in Maine groundwater resources has become a public health issue. This map displays the towns whose domestic wells, by percentage of wells sampled, have had arsenic concentrations in excess of 10 micrograms per liter (µg/L) of well water, the U.S. Environmental Protection Agency’s maximum contaminant level for arsenic in public water.
The towns in which Maine's thirty most-contaminated wells can be found are denoted as well, as are the locations of public-supply wells and groundwater resources (aquifers) throughout the state.
Source Data Note
Source Data: The Maine Office of GIS (MEOGIS), the Maine Geological Survey, ESRI ArcGIS10, the U.S. Geological Survey (USGS) National Water-Quality Assessment Program Report "Assessment of Arsenic Concentrations in Domestic Well Water, by Town, in Maine 2005-09".
Projected using Universal Transverse Mercator Zone 19N with NAD 1983 Datum.
Rights
Original Scale with Layers
Recommended Citation
Beck, Avery "Concentration of Arsenic Contamination in Township Water Resources," Atlas of Maine: Vol. 2012: No. 1, Article 15.Available at: https://digitalcommons.colby.edu/atlas_docs/vol2012/iss1/15