Stuff They Don't Want You To Know

The Hidden Radioactive History of Coldwater Creek

Jan 28, 2026
A deep dive into how wartime uranium processing and sloppy postwar disposal contaminated Coldwater Creek. The story traces leaking landfills, contaminated wells and surprising radioactive isotopes in neighborhoods. Community activists, scientific studies and policy fights drive the ongoing search for cleanup and compensation.
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INSIGHT

Radioactive Contamination Originated Locally

  • Coldwater Creek residents were exposed to radioactive waste from Manhattan Project-related processing near St. Louis.
  • That contamination began in the 1940s and was intentionally buried and hidden by authorities for decades.
ANECDOTE

Uranium Processing In St. Louis

  • Mallinckrodt Chemical Works processed uranium north of downtown St. Louis and shipped waste to nearby dump sites.
  • Contractors buried drums and sometimes dumped containers directly on the ground near Lambert Airport.
INSIGHT

Cost And Secrecy Drove Unsafe Disposal

  • Waste disposal was rushed, poorly engineered, and often cost-driven rather than protective.
  • Authorities sometimes skipped containment like concrete vaults and relied on secrecy instead of safety.
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