tagged w/ Radiation Leaks
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Los Angeles Times
Breaking news
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Federal agency bars Edison from restarting San Onofre plant
Los Angeles Times | March 27, 2012 | 2:52 p.m.
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The U.S. Nuclear Regulatory Commission, citing serious concerns about equipment failures at the San Onofre nuclear plant, on Tuesday barred plant operator Southern California Edison from restarting the plant until the problems are thoroughly understood and fixed.
.Los Angeles Times
Breaking news
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Federal agency bars Edison from restarting... more
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Los Angeles Times...
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Report: Japan, utility at fault for response to nuclear disaster
December 26, 2011 | 11:33 pm
Report: Japan, utility at fault for response to nuclear disaster
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REPORTING FROM SEOUL -- Japan’s response to the crisis at the Fukushima Daiichi nuclear power plant was flawed by poor communication and delays in releasing data on dangerous radiation leaks at the facility, which was struck by an earthquake-triggered tsunami on March 11, a government-appointed investigative panel has found.
The report attaches blame to both Japan’s central government as well as the utility that operates the plant -- the Tokyo Electric Power Co. -- depicting a scene of harried officials incapable of making decisions to stem radiation leaks as the situation at the coastal plant worsened in the days and weeks following the disaster.
The 507-page interim report, the product of interviews with hundreds of utility workers and government officials, said poor planning also worsened the disaster response, noting that authorities had grossly underestimated tsunami risks that followed the 9.0-magnitude earthquake.
The 40-foot-high tsunami that struck the plant was twice as tall as the highest wave predicted by officials. The erroneous assumption that the plant’s cooling system continued to function after the tsunami struck worsened the disaster, the report claimed.
The report, whose final version is due to be completed next year, also found that plant workers had no clear instructions on how to respond to such a disaster, causing miscommunications, especially when the disaster destroyed backup generators. Ultimately, the series of failures led to the worst nuclear catastrophe since Chernobyl.
Workers failed to immediately seek alternative sources of water to cool the overheating reactors because they assumed the system was working, even though numerous warning signs told them otherwise.
"This accident has taught us an important lesson on how we must be ready for a disaster," concluded the panel, headed by University of Tokyo professor emeritus Yotaro Hatamura.
The government also received its share of criticism after dangerous radioactivity leaked into the atmosphere, causing the evacuation of 80,000 nearby residents, most of whom have still not returned to their homes.
Fearing a national panic, Tokyo government ministries failed to relay critical information to the public, instead using language that attempted to lessen the severity of the evolving crisis, which included meltdowns at three of the plant’s reactors.
Following the March 11 earthquake and tsunami, then-Prime Minister Naoto Kan and his advisors had stationed themselves on the fifth floor of the prime minister's office, where they made key decisions in consultation with top ministers and Tepco officials. But the officials did not share information with other crucial ministries or even with the crisis-management headquarters set up in the basement of the office several floors below, the report said.
The panel also faulted government officials for delaying warnings on the spread of radiation in the region around the plant, unnecessarily exposing communities to exposure when they could have been immediately evacuated.
The panel recommended that the government and the utilities that run nuclear plants employ experts knowledgeable in assessing tsunami risks.
"The nuclear disaster is far from over," the report concluded.
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Photo: The Unit 4 reactor building of the crippled Fukushima Daiichi nuclear power station as seen November 12.
Credit: David Guttenfelder / AP Photo
.Los Angeles Times...
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Report: Japan, utility at fault for response to nuclear... more
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Los Angeles Times...
Japan says it was unprepared for post-quake nuclear disaster
In its report, Japan says, it needs to revise its nuclear safety preparedness and response in light of the Fukushima Daiichi nuclear plant crisis. It also says the damage and radiation leak were worse than previously thought.
associated press
June 8, 2011
tokyo —
— Japan acknowledged Tuesday that it was unprepared for a severe nuclear accident like the tsunami-generated Fukushima disaster and said damage to the reactors and radiation leakage were worse than it previously thought.
In a report being submitted to the United Nations' nuclear watchdog agency, the government also acknowledged reactor design inadequacies and a need for greater independence for the country's nuclear regulators.
The report says the nuclear fuel in three reactors probably melted through the inner containment vessels, not just the core, after the March 11 earthquake, and the tsunami knocked out the Fukushima Daiichi nuclear plant's power and cooling systems. Fuel in the Unit 1 reactor started melting hours earlier than previously estimated.
The 750-page report, compiled by Japan's nuclear emergency task force, factors in a preliminary evaluation by a team from the International Atomic Energy Agency and was to be submitted to the IAEA as requested.
"In light of the lessons learned from the accident, Japan has recognized that a fundamental revision of its nuclear safety preparedness and response is inevitable," the report says. It also recommends a national debate on nuclear power.
The report says the "inadequate" basic reactor design — the Mark-1 model developed by General Electric — included the venting system for the containment vessels and the location of spent fuel cooling pools high in the buildings, which resulted in leaks of radioactive water that hampered repair work.
GE declined to comment on the specific conclusions of the report.
Hundreds of plant workers are scrambling to bring the crippled reactors to a "cold shutdown" by early next year and end the crisis. The accident has forced more than 80,000 residents to evacuate from neighborhoods around the plant.Los Angeles Times...
Japan says it was unprepared for post-quake nuclear disaster... more
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Japan islanders oppose proposed nuclear plant, year after year
For decades, residents of Iwaishima have taken an aggressive stand, turning their backs on negotiation. Graying residents, mostly in their 70s, have allied with young antinuclear activists.
By John M. Glionna, Los Angeles Times
May 4, 2011
Reporting from Iwaishima, Japan—
For centuries, Yoshiaki Hashibe's ancestors have chiseled out a natural, no-nonsense existence on this tiny island where farmers and fishermen ride to their labors by bicycle.
Tradition matters here. At 69, veteran fisherman Hashibe does things just like his great-great-grandfather once did, each day venturing out to sea to haul in seaweed, octopus and red snapper.
He barters his extra catch for vegetables from a farmer who lives so close in their town of meandering back alleys that Hashibe can smell his nightly dinner. Villagers are proud of their tightknit camaraderie and historical harmony with nature.
But a utility company plans to build a nuclear power plant just across the bay, at the tip of the Kaminoseki peninsula. After receiving compensation, several nearby communities have hesitantly embraced the project.
Not Iwaishima. Many residents are convinced that the twin reactors will threaten not just their way of life but the long-term survival of the Inland Sea, a national park known as Japan's Galapagos for its range of sea life.
The utility insists that the project is safe, but residents worry about radiation leaks caused by human error. They say the plant's warm water discharge will raise sea temperatures, altering the ecosystem.
So for three decades, since the Chugoku Electric Power Co. unveiled its plans in 1982, islanders have taken an unusually aggressive stand, turning their backs on efforts at negotiation. Graying residents, mostly in their 70s, have in recent years formed an alliance with young antinuclear activists.
Together, they have staged hunger strikes, picketing and sit-ins, using a flotilla of fishing boats and kayaks to block company construction cranes from reaching the site.
As he carved up a fish on the deck of his 40-foot boat, Hashibe said he would continue the fight until he dies.
"There's a graveyard up on the mountain where I'm planning to finish up," he said. "But I won't be able to sleep gently if they build that power plant."
Not everyone is opposed to the plant. About 50 of the island's 500 residents say the plant will bring money and jobs. So much tension has risen between the two camps that many residents here no longer speak to each other.
Then on March 11, a mammoth magnitude 9 earthquake triggered a tsunami that damaged the cooling system at the Fukushima Daiichi nuclear power plant along Japan's northeast coast, spilling dangerous radioactive isotopes into the air, soil and sea.
The disaster accomplished what activists couldn't. The utility temporarily suspended plant construction after local officials expressed safety concerns.
Prime Minister Naoto Kan has suggested a possible nationwide freeze on Japan's plans to build 14 or more nuclear power stations by 2030. The nation already has 54 nuclear plants, which supply 30% of its energy.
It remains unclear what effect the Fukushima incident will have on Japan's nuclear future, but other communities — stunned by the continuing nuclear fallout from Fukushima — are looking to the Iwaishima battle as a possible indicator.
"Without our protests, that plant would already be running," said Masue Hayashi, 59, who began her opposition to the project when she was 30. "Those people near Fukushima could have been us."
No nuclear plant project in Japan has ever been stopped outside the voting booth, solely by community activism and protest. This one, Hayashi says, could be the first.
*Japan islanders oppose proposed nuclear plant, year after year
For decades,... more
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Radiation fears at new Japan nuclear plant
2011-05-02 13:03
Tokyo - Local authorities said they suspected radiation leaks at a nuclear plant in central Japan, news reports said on Monday, after another plant in the north-east has been struggling with quake and tsunami damage for several weeks.
Officials in Fukui Prefecture reported radiation leaks from fuel rods at the Tsuruga plant, Jiji Press reported.
The March 11 earthquake and tsunami crippled the Fukushima Daiichi nuclear plant in northeastern Japan. Since then plant has leaked radioactive substances into the air and sea.
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2011-05-02 13:03
Tokyo - Local... more
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PART ONE..........
Nuclear threat level raised
Crisis rates in most severe category
Japan nuclear agency raises threat level
By Matt Smith, CNN
April 11, 2011 11:11 p.m. EDT
Click on picture to play Video
Anatomy of a ghost town
STORY HIGHLIGHTS
NEW: The agency raises the level from 5 to 7
7 is the highest possible level and is on par with Chernobyl
Japan's government has called for further evacuations
Cities covered by Monday's orders should evacuate in about a month, Edano says
Tokyo (CNN) -- Japanese authorities Tuesday "provisionally" declared the country's nuclear accident a level-7 event on the international scale for nuclear disasters -- the highest level -- putting it on par with the 1986 Chernobyl disaster.
Japan's Nuclear and Industrial Safety Agency announced the new level Tuesday morning. It had previously been at 5.
Regulators have determined the amount of radioactive iodine released by the damaged reactors at the Fukushima Daiichi nuclear plant was at least 15 times the volume needed to reach the top of the International Nuclear Event Scale, the agency said. That figure is still about 10 percent of the amount released at Chernobyl, they said.
The amount of radioactive Cesium-137, which has a half-life of 30 years, is about one-seventh the amount released at Chernobyl, according to the agency.
Japan's nuclear concerns explained
Hidehiko Nishiyama, the safety agency's chief spokesman, explained the final level won't be set until the disaster is over and a more detailed investigation has been conducted.
Tetsunari Iida, a former nuclear engineer-turned-industry critic, told CNN the declaration has no immediate practical impact on the crisis. It is a sign, however, that Japanese regulators have rethought their earlier assessments of the disaster, said Iida, who now runs an alternative energy think-tank in Tokyo.
According to the scale, a level 5 equates to the likelihood of a release of radioactive material, several deaths from radiation and severe damage to a reactor core.
The 1979 incident at Pennsylvania's Three Mile Island was a 5. The partial meltdown of a reactor core there was deemed the worst nuclear accident in U.S. history.
The Chernobyl accident in the former Soviet Union rated a 7 on the scale, which equates to a "major release of radioactive material with widespread health and environmental effects requiring implementation of planned and extended countermeasures."
Japan's government called for evacuations Monday from several towns beyond the danger zone already declared around Fukushima Daiichi, warning that residents could receive high doses of radiation over the coming months.
Japan to evacuate more towns
Chief Cabinet Secretary Yukio Edano said the municipalities are likely to see long-term radiation levels that exceed international safety standards, and he warned that the month-old crisis at Fukushima Daiichi is not yet over.
"Things are relatively more stable, and things are stabilizing," he said. "However, we need to be ready for the possibility that things may turn for the worse."
And about an hour after he spoke, a fresh earthquake rattled the country, forcing workers to evacuate the plant and knocking out power to the three damaged reactors for about 40 minutes, the plant's owner, the Tokyo Electric Power Company, reported. The magnitude 6.6 tremor came a month to the day after the magnitude 9 quake and tsunami that knocked out the plant's cooling systems, and followed a magnitude 7.1 aftershock Thursday night.
Neither the 6.6 quake nor any of the smaller ones that rippled across the region in its wake inflicted any more damage to the plant, Tokyo Electric officials told reporters.
At least six killed in latest Japan quake
Tuesday morning, a fire broke out in a battery storage building in a water discharge area of reactors 1-4 at Fukushima Daiichi, Tokyo Electric said. The fire was out a few hours later and the company said it caused no radiation emissions and no effect on cooling systems.
Japan's government said it did not know how many people would be displaced by the new evacuation orders. Evacuation orders have so far covered about 85,000 people inside the 20-kilometer (12.4-mile) zone, while another 62,000 within 30 kilometers have been told to stay inside, Fukushima prefecture officials told CNN.
The decision announced Monday does not create a wider radius around the plant, said Masanori Shinano, an official with Japan's Nuclear Safety Commission.
Instead, "if there are areas in the northwestern parts where there is a risk of exceeding 20 millisieverts as a cumulative dose over a one-year period, the area will be designated an evacuation area even if it is beyond the 30-kilometer area," Shinano told reporters Monday night.
That dose is a tiny fraction of what would cause immediate radiation sickness, but it's more than seven times the amount a typical resident of a western industrialized country receives from background sources in a year. Long-term exposures to those levels of radiation could increase the risk of cancer -- and the presence of cesium isotopes that have half-lives of up to 30 years means that radioactivity could linger for some time.
CONTINUED.......PART ONE..........
Nuclear threat level raised
Crisis rates in most severe... more
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PART ONE...
March 26, 2011
Japanese gov't criticizes nuke plant operator
Officials admonish missteps at Fukushima plant, demand greater transparency from company as workers struggle to contain radiation
(AP)
SENDAI, Japan - Japan's government revealed a series of missteps by the operator of a radiation-leaking nuclear plant on Saturday, including sending workers in without protective footwear in its faltering efforts to control a monumental crisis.
The U.S. Navy, meanwhile, rushed to deliver fresh water to replace corrosive salt water now being used in a desperate bid to cool the plant's overheated reactors.
Government spokesman Yukio Edano urged Tokyo Electric Power Co. to be more transparent, two days after two workers at the tsunami-damaged Fukushima Dai-ichi plant suffered skin burns when they stepped in water that was 10,000 times more radioactive than levels normally found near the reactors.
"We strongly urge TEPCO to provide information to the government more promptly," Edano said.
The Nuclear and Industrial Safety Agency, or NISA, said TEPCO was aware there was high radiation in the air at one of the plant's six units several days before the accident. And the two workers injured were wearing boots that only came up to their ankles — hardly high enough to protect their legs, agency spokesman Hidehiko Nishiyama said.
"Regardless of whether there was an awareness of high radioactivity in the stagnant water, there were problems in the way work was conducted," Nishiyama said.
NISA warned TEPCO to improve and ensure workers' safety, and TEPCO has taken measures to that effect, Nishiyama said, without elaborating.
TEPCO spokesman Hajime Motojuku declined to comment.
The government's admonishments came as workers at the plant struggled to stop a troubling rise in radioactivity and remove dangerously contaminated water from the facility, which has been leaking radiation since a massive earthquake and tsunami on March 11 knocked out the plant's key cooling systems. Officials have been using seawater to try to cool the plant, but fears are growing that the corrosive salt in the water could further damage the machinery inside the reactor units.
TEPCO is now rushing to inject the reactors with fresh water instead, and to begin extracting the radioactive water, Nishiyama said.
Defense Minister Yoshimi Kitazawa said late Friday that the U.S. government had made "an extremely urgent" request to switch to fresh water. He said the U.S. military was sending water to nearby Onahama Bay and that water injections could begin in the next few days.
The U.S. 7th Fleet confirmed that barges loaded with 500,000 gallons of fresh water supplies were on their way.
The situation at the crippled complex remains unpredictable, Edano said Saturday, adding that it would be "a long time" until the crisis ends.
"We seem to be keeping the situation from turning worse," he said. "But we still cannot be optimistic."
CONTINUED...PART ONE...
March 26, 2011
Japanese gov't criticizes nuke plant operator... more
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CNN's just reporting this, live, on tv. If anyone gets more information, PLEASE add it here.
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Personal Updates:
As of March 12, at 7:57PM PT, I'm still watching reports (on CNN) that there is a "possibility" (POSSIBILITY, mind you) that there may be one -- and possibly two meltdowns -- just at the beginning stages. I'm finding nothing elsewhere, so am going to back off for a few hours or so.
And now, at 8:03PM PT, I've just received a text message from ABC News: "Japan's local gov't spokesman says partial meltdown likely under way at 2nd reactor affected by 8.9-magnitude quake."CNN's just reporting this, live, on tv. If anyone gets more information, PLEASE... more
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