A 1.9 billion-year-old bedrock will soon house the world’s first permanent nucle

[Marlin]

A 1.9 billion-year-old bedrock will soon house the world's first permanent nuclear waste site

https://apnews.com/article/finland-nuclear-waste-disposal-storage-d1a110758e2bd087a9cee43f56f1a05b

[Marlin]

There is a diagram of the facility in this article.

Trial Run at Finland's Onkalo Repository Sets Stage for World's First Spent Nuclear Fuel Disposal

https://www.powermag.com/trial-run-at-finlands-onkalo-repository-sets-stage-for-worlds-first-spent-nuclear-fuel-disposal/