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The original was posted on /r/todayilearned by /u/Somo_99 on 2025-07-16 18:43:32+00:00.

Original Title: TIL 46 years ago, on July 16, 1979, the Church Rock mill incident released 94 million gallons of nuclear waste & radioactive water into the Puerco river and Navajo nation. It is the third largest nuclear accident in history, behind only Fukushima and Chernobyl