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Monday, April 22, 2013

Fukushima - Nuclear cooling system Offline for Third time in Five weeks/Ongoing Leaks | Reuters/enenews



An aerial view shows Tokyo Electric Power Co.'s (TEPCO) tsunami-crippled Fukushima Daiichi nuclear power plant in Fukushima Prefecture March 11, 2013. REUTERS/Kyodo
Tokyo Electric Power, the utility that operates the Japanese nuclear plant devastated two years ago by an earthquake and tsunami, is scrambling to build more tanks to safely store radioactive water after leaks were found at makeshift pits. http://www.reuters.com/article/2013/04/11/us-japan-nuclear-leaks-idUSBRE93A0AD20130411

Fukushima nuclear cooling system offline for third time in five weeks

TOKYO | Mon Apr 22, 2013 3:00am EDT
 
(Reuters) - Tepco halted the cooling system for a spent fuel pool at its Fukushima Daiichi nuclear plant on Monday, the third time a cooling system has been offline there in the past five weeks, underlining the challenges the utility faces in trying to shut down the facility.
The company, formally known as Tokyo Electric Power Co, said in a statement that it halted the system for the No.2 unit's spent fuel pool for inspection after it found dead rats near a
transformer.

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The inspection was expected to take 3 to 4 hours from 11:36 a.m. (0236 GMT). Tepco estimated that temperatures in the pool would rise less than one degree during the inspection from around 14 degrees Celsius before it halted the system, it said.
Two years after an earthquake and tsunami crippled the plant, Tepco faces a raft of hurdles, including groundwater flooding into damaged reactors, as it works to decommission the complex. The clean-up effort is expected to take decades.

Last month, a 29-hour power supply halt affecting nine facilities, including four spent fuel pool cooling systems, was caused by a rat touching exposed wires in a temporary switchboard, triggering a circuit breaker.
In early April, the No.3 unit's spent fuel pool cooling system stopped, after workers appeared to have had inadvertently caused a power outage when they were trying to install a net to keep small animals from crawling into the reactor building.

(Reporting by Risa Maeda; Editing by Chris Gallagher)


(AFP) – 1 hour ago 
 
TOKYO — The International Atomic Energy Agency on Monday called on the operator of Japan's crippled Fukushima nuclear plant to improve "essential systems" as it struggles to deal with leaks and power cuts.
"TEPCO (Tokyo Electric Power) should continue its efforts to improve the reliability of essential systems, to assess the structural integrity of site facilities and to enhance protection against external hazards," the UN nuclear watchdog said in a statement.
The comments came after an IAEA mission met with officials from the Japanese government and TEPCO last week in Tokyo, ahead of their on-site inspection at the plant.
The statement was released just hours after TEPCO said it had temporarily switched off a reactor cooling system following the discovery of a pair of dead rats near to critical equipment.
The measure was taken to allow workers to safely remove the bodies and to check whether the animals had done any damage to delicate electrical systems, a TEPCO spokesman said.
The IAEA inspection by nuclear experts and international specialists came at the request of the Japanese government and is the third of its kind since the Fukushima plant was knocked out by a tsunami in March 2011.
The stricken site has suffered an increasingly long line of mishaps that have rattled public confidence.

IAEA officials visit the crippled TEPCO Fukushima Dai-ichi nuclear power plant, in Okuma, on April 17, 2013 (IAEA/AFP/File)

Report: All 7 Fukushima in-ground storage ponds leaking radioactive water

Published: April 13th, 2013 at 4:47 pm ET
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Title: #Fukushima I Nuke Plant Pond Leak of April 2013: All 7 In-the-Ground Water Storage Ponds Are Leaking Radioactive (Beta) Water
Source: EXSKF
Date: April 12, 2013
h/t Fukushima Update
[...] TEPCO’s handout for the press on April 13, 2013 shows that beta nuclides are being detected in the water taken from either the drains or the leak detection pipes or both in not only the ponds Nos 1, 2, 3 but all seven of these in-the-ground storage ponds [...]

See also: Asahi: ALL radioactive water storage tanks at Fukushima Daiichi leaking? "We are giving priority to the No. 2 tank, whose conditions are worse"


Friday, April 19, 2013

Seismic Alert - Major Quake - 7.2M Northern Japan- Tsunami Warning Lifted - NHK/enenews




(Live Fukushima Nuclear Plant Cam)

M7.3 earthquake strikes Northeast Japan — Japan TV warned of strong quake minutes before it hit — Several M5 and M6 follow (VIDEO)

 

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