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Press Release (May 03,2011)
Detection of Radioactive Materials from Subsurface Water near the Turbine Buildings of Fukushima Daiichi Nuclear Power Station
On March 28th 2011, we were advised from Nuclear Safety Commission of
Japan to enhance sampling surveys regarding water accumulated in
underground floor of the turbine buildings of Fukushima Daiichi Nuclear
Power Station. In order to verify any leakages to underground and sea,
and safety, we have been implementing the sampling surveys of subsurface
water and seawater.

Regarding sampling surveys of sub-drains, based on the instruction from
Nuclear and Industry Safety Agency (NISA) on April 14th, we will continue
conducting the same kind of sampling surveys three times a week, and
inform the result on the next day of the survey.
                                                    (Previously announced)

On May 2nd, 2011, we conducted sampling surveys regarding sub-drains
(subsurface water obtained and managed in the site) near the turbine
buildings of Fukushima Daiichi Nuclear Power Station. Today, we reported
to NISA and the government of Fukushima Prefecture, since, as the results
of nuclide analyses, radioactive materials were detected as shown in the
attachment. 
attachment1: Fukushima Daiichi Nuclear Power Station : Results of Nuclide 
             Analyses of Sub-drains (PDF 13.0KB) 
attachment2: Fukushima Daiichi Nuclear Power Station : Radioactivity 
             Density of Sub-drain (PDF 22.1KB) 
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