For the first time, ProPublica has cataloged cleanup efforts at the 50-plus sites where uranium was processed to fuel the nation’s nuclear arsenal. Even after regulators say cleanup is complete, polluted water and sickness are often left behind.
by Mark Olalde, Mollie Simon and Alex Mierjeski, ProPublica
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.

But the government didn’t have a plan for the toxic byproducts of this nuclear assembly line. Some of the more than 250 million tons of toxic and radioactive detritus, known as tailings, scattered into nearby communities, some spilled into streams and some leaked into aquifers.
Recent Posts
Zohran Mamdani Is Showing Democrats How To Shape Voter Opinion
June 23, 2025
Take Action Now Polls recorded shifts in NYC residents’ priorities following mayoral candidate Zohran Mamdani’s campaigning on housing.By Susan…
Bombing Iran Is Part Of The USA’s Repetition Compulsion For War War War
June 22, 2025
Take Action Now More than ever, the United States and Israel are overt partners in what the Nuremberg Tribunal in 1946 called “the supreme…
62 percent Of Democrats Agree Party Leadership Should Be Replaced: Survey
June 20, 2025
Take Action Now The party has found it difficult to build a cohesive message as the Democratic National Committee (DNC) has been embroiled in…
Democratic Leadership Is Complacent In The Face Of Iran War Threat
June 20, 2025
Take Action Now “It’s embarrassing that some problematic far-right figures are speaking out more forcefully against direct military…