On May 2nd, we reported the causes and measures to Nuclear and Industrial
Safety Agency (NISA) of Ministry of Economy, Trade and Industry by
"Investigation of causes and development of preventive measures regarding
exposure exceeding dose limit to radiation workers at Fukushima Daiichi
Nuclear Power Station" regarding "Exceeding dose limit to TEPCO employees
at Fukushima Daiichi Nuclear Power Station," which were announced on April
27th and May 1st. However, some mistakes have been found in the report.
<Background>
On May 3rd we received inquiries from Fukushima Labor Bureau as to the
work of the female employee who was working in Main Anti-Earthquake
Building. Accordingly, we confirmed the work in detail, and found there
were mistakes in the report submitted to NISA.
<Details>
In compiling the number of female employees (19 in total), there actually
was an employee (radiation worker) who did not work in Main
Anti-Earthquake Building while it was mistakenly reported that the
employee assumed and counted as one who worked in Main Anti-Earthquake
Building. Also, there actually was an employee (non-radiation worker) who
worked in Main Anti-Earthquake Building while the employee was counted as
one who did not work in Main Anti-Earthquake Building.
(Previously announced on May 5th)
With regard to the mistakes, we announce that we have amended the details
of the report as shown in the attachment and reported to NISA on May 11th.
Attachment1: Amendment of "Investigation of causes and development of
preventive measures regarding exposure exceeding dose limit
to radiation workers at Fukushima Daiichi Nuclear Power
Station"(May 2, 2011)(PDF 15.9KB)
Attachment2: Mistakes in the report on investigation of cause and
development of preventive measures regarding exposure
exceeding dose limit to radiation dose engaged person at
Fukushima Daiichi Nuclear Power Station to NISA(PDF 8.44KB)