The Idaho Bureau of Laboratories has produced an interactive map of groundwater quality for nine major contaminants across the state. Map layers are available for arsenic, chloride, copper, fluoride, iron, manganese, selenium, sulfate, and total nitrate.
Contaminant concentrations are provided for a variety of well depths, and maximum level guidelines from the EPA are provided, along with potential health effects from long-term exposure above these levels. Additional resources are also provided for further information on each contaminant.
Click here to access the Idaho Ground Water Quality Interactive Map.
Source: Idaho Bureau of Laboratories