Four Corners Area Drinking Water webGIS Application


Welcome! This site is dedicated to using web-based Geographic Information Systems (GIS) to visualize and understand arsenic contaminated groundwater in the Four Corners area, including the Navajo Nation.


Arsenic contamination is a serious health risk, especially for people who rely exclusively on groundwater drinking sources.



As few as 60% of residents in the Four Corners area have access to safe and clean drinking water. Contaminated drinking water can lead to increased cancer risk and other harmful health affects.






Please use the webGIS application on this website to explore Four Corners area drinking water contamination or learn the facts about drinking water in the Four Corners.