Massive, uncontained leak at Fukushima

Massive, uncontained leak at Fukushima is pouring over 710 billion becquerels of radioactive materials into atmosphere


(NaturalNews) The tsunami-caused nuclear accident at the Fukushima power
station in Japan is the disaster that never ends, as new reports
indicate that a wealth of new radioactive materials have been spewed
into the atmosphere.

According to Singapore-based news outlet AsiaOne,
the Tokyo Electric Power Co., which owns the multi-nuclear reactor
power station at Fukushima, announced April 6 that some 120 tons of
water that had been contaminated with radioactive substances had leaked
from an underground storage facility at the No. 1 atomic power plant
site.

Running out of storage room?

TEPCO officials
announced the leak late in the day April 5, a Friday, "but said measures
to address the problem had not been taken for two days because the
cause had not been identified," AsiaOne reported. The company "assumed the water was still leaking."

According
to company officials TEPCO estimates that the leaked water contains
about 710 billion becquerels of radioactive substances, making it the
largest leak of radioactive materials ever at the plant. Discovery of
the leak led the company to transfer about 13,000 tons of polluted,
radioactive water in the questionable storage area to a neighboring
underground storage unit.

That storage unit, TEPCO said, is 60
meters long, 53 meters wide and six meters deep. It is pool-like in
structure and has a three-layer waterproof sheet with a concrete cover.

According
to the company, water that has leaked from damaged nuclear reactors is
run through filters and additional devices in order to remove radioactive elements. The water is then stored in facilities for low-level contaminated water.

TEPCO
began using the storage facility Feb. 1. As of April 5, 13,000 tons of
radioactive water was being stored there - very close to the 14,000-ton
limit.

More leaking contamination

AsiaOne reported
that water samples taken by TEPCO from soil surrounding the damaged
facility a few days later showed 35 becquerels per cubic centimeter of
radioactive substances, which is abnormal. "Safe" levels of becquerels
is 300 per kilogram of water, according to New Scientist.

However,
TEPCO officials did not publicly announce their findings right away
after not finding any other unusual changes in water quality data, such
as chloride concentration.

On April 5, the report said, two days
after the problem was first noticed, water with 6,000 becquerels per
cubic centimeter of radioactive substances was located between the first
and second layers of the waterproof sheet, which alerted TEPCO
engineers and plant officials that a leak had occurred.

Per AsiaOne:

As
the sheet's layers were joined when the facility was constructed, TEPCO
assumed that the sheet may have been damaged, or that a mistake had
been made during construction. An average of about 400 tons a day of
groundwater seeped into buildings housing nuclear reactors and turbines,
increasing the quantity of polluted water.

The latest
problem will create a storage shortage; TEPCO officials said storage of
polluted water at the facility will be reduced from 53,000 tons to
40,000 - a significant reduction. That will make it necessary for the
power company to go over procedures for handling polluted water, which
will include increasing the number of storage units.

The disaster that keeps on giving

TEPCO said earlier this month it expected the water transfer would take about five days to complete.

"As
the height of the water storage facility is relatively low, we think
it's unlikely that the polluted water mixed into underground water and
reached the sea 800 meters away," said Masayuki Ono, the acting chief of
TEPCO's nuclear facilities department, at a press conference April 6.

The
plant was damaged by a huge earthquake-caused tsunami March 11, 2011.
At the time of the incident, three of the plant's atomic reactors were
shut down: No. 4 had been de-fueled and Nos. 5 and 6 were in cold
shut-down for maintenance.

The remaining three automatically shut
down at the time of the accident and emergency generators came on to
keep coolant systems operating.

Source:_
http://www.naturalnews.com/040058_Fukushima_radioactive_nuclear_leak.html