TEPCO Press Release (Apr 19,2011)—Detection of Radioactive Material from Subsurface Water near …

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http://www.tepco.co.jp/en/press/corp-com/release/11041908-e.html

Press Release (Apr 19,2011)
Detection of Radioactive Material from Subsurface Water near the Turbine Building of Fukushima Daiichi Nuclear Power Station

On March 28th 2011, we were advised from Nuclear Safety Commission of
Japan to enhance the sampling survey regarding water in underground floor
of the turbine building of Fukushima Daiichi Nuclear Power Station. In
order to verify any leakages to underground and sea, and safety, we have
been implementing the sampling survey of subsurface water and seawater.

Regarding sampling survey of sub-drain, based on the instruction from NISA
on April 14th, we continue to conduct same kind of sampling survey three
times a week, and inform the result on the next day of the survey.
                                                   (Previously announced)

On April 18th 2011, we had conducted sampling survey regarding sub-drain
(subsurface water obtained and managed in the site) near the turbine
building of Fukushima Daiichi Nuclear Power Station. Today, we had
informed the result to Nuclear and Industrial Safety Agency (NISA) and the
government of Fukushima Prefecture, because radioactive materials were
detected as shown in the attachment.

Appendix : Fukushima Daiichi Nuclear Power Station : Results of Nuclide
           Analysis of sub-drain (PDF 10.2KB)
Reference: Fukushima Daiichi Nuclear Power Station : Radioactivity Density
                                                           (PDF 41.8KB)