Fukushima Daiichi Prompt Report
TEPCO UNIT 2 PRIMARY CONTAINMENT VESSEL INTERNAL INVESTIGATION RESULTS (Preliminary Report)
Feb 15, 2019
FUKUSHIMA, Japan —In an internal investigation of the Unit 2 primary containment vessel (PCV) conducted on February 13, TEPCO succeeded in its first attempt to use an observation device to experimentally touch deposits located on the bottom of the pedestal.
The observation device made contact with deposits at six locations on the pedestal. Deposits in five locations could be moved.
Images, dose and temperature data were obtained from locations closer to the deposits than during prior investigations. The obtained images and dose/temperature data will now be analyzed.
There were no significant fluctuations in monitoring post or dust monitor readings neither prior to nor after the investigation, and there was no radiological impact on the surrounding environment.
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Tokyo Electric Power Company Holdings, Inc. (TEPCO) is Japan's largest power company group, holding three independent business entities: TEPCO Fuel & Power, Inc., TEPCO Power Grid, Inc., and TEPCO Energy Partner, Inc. As a group, it generates, distributes, and sells electricity and other types of energy principally to the Kanto metropolitan area, which includes Japan's two most populous cities, Tokyo and Yokohama. The TEPCO Group’s 41,525 employees are committed to providing safe, reliable power as well as fulfilling its responsibilities to the communities of Fukushima (as of March 31, 2018).