Way back in 2004, workers began carefully excavating several burial grounds near the Hanford Site’s 300 Area. One of their discoveries had the feel of an archeological find:
A safe was encountered during the excavation of the 618-2 Burial Ground that contained a very pure form of Plutonium-239 on the interior surfaces and possibly in various liquids contained in the safe. The safe appears to be legacy waste from research performed in the 1940s. A metal beaker containing plutonium residue (with high Pu/Am concentration) was also uncovered in the stockpiles of waste from the 618-2 excavation.
That find, and a number of other contaminated bits and pieces, made the news; you can see more photos of the safe and its contents here.
It was yet another reminder to the public that the Cold War legacy is more than nuclear arsenals and treaties; there’s a significant, extremely complex environmental legacy as well.
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