
Finland's Onkalo Begins Drilling World's First Nuclear Waste Disposal Holes
Finland's Posiva began drilling the world's first permanent disposal hole at the Onkalo facility on August 26, 2026. The hole's specifications—8.4m deep with a 25mm tolerance—reveal a design philosophy built on multiple barriers under the KBS-3 method, standing in contrast to Japan, which remains stalled at the literature survey stage.








