Fukushima groundwater bypass operation ineffective: Tepco

 A groundwater bypassing operation at the Fukushima No. 1 nuclear plant has yet to produce significant results in preventing groundwater from flowing into the basements of reactor buildings, Tokyo Electric Power Co. said.

By last Thursday, about three months after the effort was launched, a total of around 25,000 tons of water had been pumped from underground and released into the sea.

Tepco, however, said Monday it is expected to take several more months before the intended effects will be seen.

“The amount of groundwater flowing into the basements has not decreased markedly,” senior official Isao Shirai said at a news conference.

Tepco claimed about a month ago that the effects would be visible in just one or two months.
In the operation, groundwater is pumped up from wells near the reactors before it flows into the basements and mixes with highly radioactive water that has accumulated there
The volume of radioactive water at the plant increases by an estimated more than 400 tons per day.

Source: Japan Times


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