A recent leakage of radioactive water from a desalination unit at the stricken Fukushima No. 1 nuclear power plant was attributed to a crack in a flowmeter cap, the plant operator said June 21.
Tokyo Electric Power Co. detected the leakage in the early hours of June 21 at one of the three desalination units available at the plant to remove salinity from highly radioactive water that was used to cool crippled reactors.
A worker refastened the capping too tightly after removing it to clean the inside. That generated a crack, which leaked water under pressure, TEPCO officials said.
While TEPCO officials initially said an estimated 360 liters of water had leaked, they revised that figure to 250 liters.
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