The Navajo Nation and U.S. government officials are keeping a close eye on more than a dozen retired uranium mines on the Navajo reservation.
The officials of the Navajo tribe and the U.S. Environmental Protection Agency (EPA) agreed several years ago to assess uranium sites where they couldn't find a company with enough experience to oversee the necessary work.
Officials have stated that a lot of work is required before the sites can be cleaned up. They may pose a danger to residents in the area, therefore, EPA employees test the surrounding areas for radiation spikes.
Government officials have recently identified 17 of these abandoned uranium sites on the Navajo reservation. Reports say these sites will be assessed and report on which sites pose the most significant hazards. The majority of these abandoned mines are located in the northeast corner of Arizona.