Arsenic in Oak Lake Aquifer
Important facts for well owners

This factsheet provides essential information about the presence of arsenic in the Oak Lake Aquifer’s groundwater, explaining how arsenic naturally occurs, how it can affect well water, and the health risks associated with long-term exposure. It outlines recommended testing procedures for private wells, actions to take if elevated arsenic levels are found, and emphasizes the importance of regular water quality monitoring for uranium, barium, bacteria, and nitrates. The resource is specifically prepared for well owners seeking guidance on maintaining safe drinking water in Oak Lake and surrounding areas, with contacts for local health offices and accredited laboratories for water testing.