TOKYO (Sputnik) — The Japanese Nuclear Regulation Authority approved a plan on Wednesday to freeze soil around the damaged reactor buildings at the Fukushima nuclear power plant to prevent contaminated water from leaking into the ocean, local media reported.
TEPCO started to construct the wall in mid-2014 as a part of a $309-million project. It will reportedly take eight months to complete the project to freeze the soil.
The Fukushima Daiichi nuclear disaster took place on March 11, 2011, and was triggered by a magnitude 9.0 earthquake and subsequent tsunami. The accident is considered to be the world's worst nuclear disaster since Chernobyl. According to TEPCO, the cleanup operation, including the dismantling of the plant's reactors, may take up to 40 years to complete.