Fukushima nuclear plant reports radioactive water leak

The Fukushima Daiichi nuclear power plant in Japan had a highly radioactive water leak on Thursday, but no damages or injuries were reported.

The leak was found during a valve check at a treatment machine used to extract cesium and strontium from contaminated water on Wednesday morning, according to the Tokyo Electric Power Company Holdings, which is now inactive until further maintenance.

A worker looks at materials inside a building accommodating a filtering system called ALPS, as seen during a visit by The Associated Press at the Fukushima Daiichi nuclear power plant in Futaba town, northeastern Japan, Friday, July 14, 2023. The earthquake and tsunami destroyed the plant’s cooling systems, causing three reactors to melt and contaminating their cooling water, which has since leaked continuously. The water is collected, treated with the filtering system and stored in some 1,000 tanks, which will reach their capacity in early 2024. (AP Photo/Hiro Komae)

About 6 tons of the radioactive water escaped through an air vent to an iron plate on the ground outside, then seeped into the soil and its surroundings. The leaked water did not spread outside of the compound, but its radioactive level exceeded the legal limit by 10 times, TEPCO said.

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The leaked water has been cleaned up, and the polluted soil is currently being removed, but it is still unclear when the machine started to leak, according to TEPCO spokesman Kenichi Takahara. No issues were reported in the initial inspection of the valve treatment machine the day before it leaked.
No increase in contamination on the plant has been reported since.

In this photo provided by Tokyo Electric Power Company Holdings, Inc. (TEPCO), a staff member examines an air vent through which a plant worker found the leak Wednesday morning, at the crippled Fukushima Daiichi nuclear power plant in Okuma town, northeastern Japan, Wednesday, Feb. 7, 2024. Highly radioactive water leaked from a treatment machine at the tsunami-hit Fukushima nuclear power plant, but no one was injured and radiation monitoring shows no impact to the outside environment, the utility operator said Thursday. (TEPCO via AP)

This leak comes a few months after four workers were spritzed with radioactive waste from an accidental leak at an Advanced Liquid Processing System facility nearby.

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