TEPCO puts water decontamination unit on hold after possible leak

June 17, 2013

THE ASAHI SHIMBUN

Tokyo Electric Power Co. suspended a test run of a water decontamination system at the Fukushima No. 1 nuclear power plant on June 16 after a suspected leak of highly radioactive water.

A welded part on the surface of the tank for the Alps water decontamination system measured 0.2 millisievert per hour, a radiation level higher than in surrounding areas. TEPCO is investigating the situation.

The cylindrical tank, which is 6 meters tall and 3 meters in diameter, held 25 tons of radioactive water before processing.

A worker who was checking condensation on the surface found traces of brown water at around 11 p.m. on June 15. TEPCO suspects that water leaked from the welded part.

Alps can remove 62 radioactive substances, including strontium, from contaminated water.

The test run, which started in March, was to finish at the end of July. If the leak is confirmed, the completion of the test run will be delayed.

THE ASAHI SHIMBUN
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The Alps water decontamination system at the Fukushima No. 1 nuclear power plant (Provided by TEPCO)

The Alps water decontamination system at the Fukushima No. 1 nuclear power plant (Provided by TEPCO)

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  • The Alps water decontamination system at the Fukushima No. 1 nuclear power plant (Provided by TEPCO)

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