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
Tax Day 2026: The Average Taxpayer Paid $4,049 for War and Weapons
April 9, 2026
Take Action Now Wars don’t just cost taxpayers at the pump. Here’s what the average taxpayer spent for different priorities in 2025By…
Bombshell Report Reveals Trump Was Begging for Iran to Join Ceasefire
April 9, 2026
Take Action Now This contradicts everything the president has said about the war.By Malcolm Ferguson, The New Republic Recent reporting from the…
Massive Israeli Assault on Lebanon Threatens U.S.-Iran Ceasefire
April 8, 2026
Take Action Now Over 250 people were killed in what the Israeli military said was the “largest coordinated strike” on Lebanon since March 2.By…
Is the War In Iran About to Become Apocalyptic? (w/ Trita Parsi)
April 7, 2026
Take Action Now As Trump escalates threats, oil chokepoints tighten, and talk of “total surrender” creeps toward the unthinkable, Trita Parsi warns…




