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Contents of 4,000 containers with radioactive waste at Fukushima plant unclear: TEPCO

This file photo taken on Feb. 13, 2021 shows the No. 1-4 reactors at the Fukushima Daiichi Nuclear Power Station. (Mainichi/Koichiro Tezuka)

FUKUSHIMA -- Of the 85,000 containers holding radioactive waste placed in the radiation-controlled area of the Fukushima Daiichi nuclear power plant, the contents of about 4,000 have not been identified, operator Tokyo Electric Power Company Holdings Inc. (TEPCO) announced on April 5.

    According to TEPCO, it began listing the contents of the containers after the meltdown in 2011, but about 4,000 of them remain unidentified. The company says it will formulate a survey plan and proceed to determine what they hold.

    Last month, TEPCO confirmed that the contents of a container in the waste storage area at the nuclear plant were leaking due to corrosion at the bottom of it. When the Fukushima Prefectural Government inspected the site, it also found four containers that TEPCO did not know about. The maximum radiation level on the surface of the containers was 1.5 millisieverts per hour.

    (Japanese original by Rikka Teramachi, Fukushima Bureau)

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