fukushima-updatevia NHK World / Sep 14, 2013 / The operator of the Fukushima Daiichi nuclear power plant says that it found sharply rising tritium levels at a monitoring well near a waste water storage tank.

Tokyo Electric Power Company says the level of radioactive tritium at one of the wells rose to 130,000 becquerels per liter on Thursday. That’s more than twice the government-set level for its release into the sea.

One of the storage tanks leaked more than 300 tons of highly radioactive water in August. The water is likely to have seeped into the soil.

The company has since increased the numbers of monitors to check the radioactive materials in groundwater near the tank.

The tritium level in the well was 64,000 becquerels per liter on Tuesday and rose to 97,000 becquerels on Wednesday. The well is located 20 meters north of the leaking tank.

Meanwhile, the tritium in another well on the southern side of the tank was 290 becquerels per liter. The level is declining slightly.

Officials say the rise was apparently caused by a leak from the tank last month, but they can’t exactly determine how that happened. They are also investigating past leaks from pipes connecting the tanks.

Source: NHK World

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