We have received directive document from NISA
"Regarding Response to the
Accumulated Water Containing Radioactive Materials
Found in Trench at
Fukushima Dai-ichi Nuclear Power Station
(Direction)" on December 19 with
regards to the fact that we found the accumulated water
in the trench
between process main building and miscellaneous solid
waste volume
reduction treatment building(high temperature
incinerator building) in the
centralized radiation waste treatment facility at
Fukushima Daiichi
Nuclear Power Station on December 18, which contains
radioactive materials.*1
(Previously reported on December 19, 2011)
In accordance with the directive document, on January
6, we have reported
to NISA regarding the situation of "1. To promptly
transfer the water
accumulated in the trench to the equipment that can
appropriately manage
the water", "2. To investigate the inflow
route of the water accumulated
in the trench and to consider the water stoppage
measures" and "4. To
formulate and implement the patrolling visual
inspection and checkup plan
to check the existence of accumulated water containing
radioactive
materials in other trenches".
(Previously reported on January 6, 2012)
Thereafter, while we have been implementing inspection
of trenches within
the site of Fukushima Daiichi Nuclear Power Station and
have been
determining existence of accumulated water and have
been investigating
water level and density of radio active materials,
today, we have received
directive document from NISA "Regarding Response
to the Accumulated Water
Containing Radioactive Materials Found in Trench at
Fukushima Dai-ichi
Nuclear Power Station (Further
Direction)"*2
In accordance with the further direction, we will take
smooth response and
report to NISA in a timely manner.
End
*1 "Regarding Response to the Accumulated Water
Containing Radioactive
Materials Found in Trench at Fukushima Dai-ichi Nuclear
Power Station
(Direction)"
(19.12.2011 NA No. 6)
On December 18, 2011, the Nuclear and Industrial Safety
Agency (NISA)
received a report from your company stating that the
accumulated water
containing radioactive materials was found in a trench
at Fukushima
Dai-ichi Nuclear Power Station.
In light of the event of a large amount of water
containing radioactive
materials accumulated in the trench, NISA requests your
company to take
measures as described below and to promptly report the
results of the
measures to NISA in order of implementation.
Required Items
1.To promptly transfer the water accumulated in the
trench to the
equipment that can appropriately manage the
water;
2.To investigate the inflow route of the water
accumulated in the trench
and to consider the water stoppage measures;
3.To investigate the cause of the event that
radioactive materials are
contained in the water accumulated in the trench as
well as to take
recurrence prevention measures to prevent the water
containing
radioactive materials from flowing into the
trench;
4.To formulate and implement the patrolling visual
inspection and checkup
plan to check the existence of accumulated water
containing radioactive
materials in other trenches.
*2 "Regarding Response to the Accumulated Water
Containing Radioactive
Materials Found in Trench at Fukushima Dai-ichi Nuclear
Power Station
(Further Direction)"
(20.01.2012 NA No. 4)
[We have provided a Japanese press release version of
the instruction
document received from NISA. However, at this time we
have reserved the
right not to provide an English version due to
potential misunderstandings
that may arise from an inaccurate rendering of the
original Japanese text.
We may provide the English translation that NISA
releases in our press
releases. However, in principle we would advise you to
visit the NISA
website for timely and accurate information.]
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