[Ed: I’ve made many transits of the lands referred to in this informative if not disturbing read. One crucial issue not mentioned in this article are the rapid developments in the science behind groundwater modeling in relation to biotic vectors and what exactly is happening to uranium compounds that are available and mobile underground. The redox (and subsequent immobilization) of uranium through biotic/microbial vectors has recently been demonstrated to have major effects on reductive sedimentary environments, though gauging the precise impacts on particular situations remain difficult. See, for example, Biotic-Abiotic Pathways: A New Paradigm for Uranium Reduction in Sediments]

This story was originally published by ProPublica and was written by Mark Olalde, Mollie Simon and Alex Mierjeski, video by Gerardo del Valle, Liz Moughon and Mauricio Rodríguez Pons.
In America’s rush to build the nuclear arsenal that won the Cold War, safety was sacrificed for speed. Uranium mills that helped fuel the weapons also dumped radioactive and toxic waste into rivers like the Cheyenne in South Dakota and the Animas in Colorado. Thousands of sheep turned blue and died after foraging on land tainted by processing sites in North Dakota. And cancer wards across the West swelled with sick uranium workers. The U.S. government bankrolled the industry, and mining companies rushed to profit, building more than 50 mills and processing sites to refine uranium ore. more “The Cold War Legacy Lurking in U.S. Groundwater”