Three former TEPCO officials on trial
Three former TEPCO officials and their disaster planning skills are on trial for deaths caused by the 2011 tsunami and nuclear meltdowns.
Debris extraction method at Fukushima nuclear plant to be revealed
A state-backed entity is expected to soon compile a plan for decommissioning the crisis-hit Fukushima nuclear power plant, unveiling how to extract fuel debris from three reactors for the first time, sources close to the matter said Tuesday.
The Nuclear Damage Compensation and Decommissioning Facilitation Corp., tasked with providing technical support for decommissioning the complex, is mulling proposing a method to remove nuclear debris without fully filling their reactor containment structures with water, the sources said.
It means the debris inside the Nos. 1 to 3 reactors at the crippled Fukushima Daiichi complex is likely to be shaved off gradually with a drill or laser equipment, while pouring water shower under a remotely controlled operation, the sources said.
A method to fulfill reactor containers with water first is effective in blocking radiation from spreading but the entity decided not to adopt the approach as the three reactor containers are believed to have been damaged and water would likely leak.
Shown in red is melted nuclear fuel, or nuclear debris. Shown in black is a drill or laser for scraping off the debris.
Under the method the entity currently envisions, some part of debris would remain in the air during the operation so a major challenge facing the debris extraction work is how to shield radiation and prevent debris from flying off.
While debris in the reactors has yet to be directly confirmed and information on the exact locations and conditions is limited, the extraction work, the most difficult part of the decommission project, is expected to proceed in stages from the side of the bottom part of each reactor container while ensuring safety measures, the sources said.
Based on the decommission plan to be compiled by the entity, the government and the plant operator Tokyo Electric Power Company Holdings Inc. are expected to determine a debris extraction scheme for each reactor building this summer and possibly review a road map for decommissioning the complex as well, the sources added.
Decommissioning the crippled reactors is expected to take at least 30 to 40 years.
The current road map calls for completion of a plan on how to extract debris from each reactor this summer and finalizing a detailed method for at least one of the three units in the first half of fiscal 2018 to begin the extraction operation in 2021.
Following a magnitude-9.0 earthquake in March 2011, tsunami waves inundated the six-reactor plant, located on ground 10 meters above sea level, and flooded power supply facilities. Reactor cooling systems were crippled and the Nos. 1 to 3 reactors suffered fuel meltdowns, while hydrogen explosions damaged the buildings housing the Nos. 1, 3 and 4 units.
At least 150,000 people in Fukushima were forced to live as evacuees amid radiation fears. While some have returned to their homes, the utility known as Tepco and the government face enormous challenges in scrapping the crippled reactors.
The Nuclear Damage Compensation and Decommissioning Facilitation entity was established after the Fukushima crisis, the worst nuclear disaster since Chernobyl, to help the utility pay damages for the calamity. The state-backed entity holds a majority stake in Tepco.
https://english.kyodonews.net/news/2017/07/ddee4ff9fec7-debris-extraction-method-at-fukushima-nuclear-plant-to-be-revealed.html
Fuel debris extraction plan for crippled Fukushima reactors to be revealed soon: sources
A series of photos taken on Jan. 30 shows the inside of the Fukushima No. 1 nuclear plant’s reactor 2 pressure vessel. A specific method for removing debris is set to be revealed soon
A state-backed entity is close to completing a plan for decommissioning the crisis-hit Fukushima nuclear power plant, detailing for the first time how it hopes to extract fuel debris from three reactors, sources said.
The Nuclear Damage Compensation and Decommissioning Facilitation Corp., tasked with providing technical support for decommissioning the complex, may propose a method to remove nuclear debris without completely filling the reactor containment vessels with water, the sources said Tuesday.
The plan means the debris inside reactors 1, 2 and 3 at the crippled Fukushima No. 1 complex is likely to be shaved off gradually with a drill or laser equipment as a shower of water is poured remotely, the sources said.
Filling reactor containment vessels with water before removing the debris is seen as effective in blocking the spread of radiation, but the entity decided not to adopt the approach because they fear water may leak from the damaged structures, the sources said.
In the method currently being weighed, some debris would remain in the air during the operation, posing a major challenge in efforts to block radiation and prevent debris from flying off, the sources said.
While debris has yet to be directly confirmed and information on exact locations and conditions is limited, the extraction work — the most difficult part of the decommissioning project — is expected to proceed in stages from the side of the bottom part of each reactor containment vessel, the sources said.
Based on the plan, the government and the plant operator, Tokyo Electric Power Company Holdings Inc., are expected to determine a course of action for each reactor building this summer, possibly reviewing a road map for decommissioning the entire complex as well, the sources added.
Decommissioning the crippled reactors is expected to take at least 30 to 40 years.
The current road map calls for a debris-extraction plan for each reactor by this summer, with a detailed plan for at least one of the units ready in the first half of fiscal 2018. Extraction work would begin in 2021.
Following a magnitude 9.0 earthquake in March 2011, tsunami waves inundated the six-reactor plant, located on ground 10 meters above sea level, flooding power supply facilities. Reactor cooling systems were crippled and reactors 1, 2 and 3 suffered fuel meltdowns, while hydrogen explosions damaged the buildings housing reactors 1, 3 and 4.
At least 150,000 people in Fukushima were forced to live as evacuees amid radiation fears. While some have returned to their homes, Tepco and the government face enormous challenges in scrapping the reactors.
The Nuclear Damage Compensation and Decommissioning Facilitation entity was established after the crisis, the worst nuclear disaster since Chernobyl, to help the utility pay damages. The state-backed entity holds a majority stake in Tepco.
http://www.japantimes.co.jp/news/2017/07/05/national/group-mulls-fukushima-no-1-melted-fuel-debris-extraction-without-filling-containment-vessels-water/
Trial of former Tepco executives over 2011 disaster
The criminal trial of three former top executives at Tokyo Electric Power Co. over the triple meltdown at its Fukushima No. 1 nuclear power plant in 2011 has begun at the Tokyo District Court. The point at issue is whether it was possible for the accused to have foreseen the giant tsunami that led to the nuclear disaster and whether they could have taken steps to prevent the catastrophe. Proving the case against them will not be easy. Still, the court and the lawyers acting as prosecutors should leave no stone unturned in their effort to unravel Tepco’s decision-making process regarding the nuclear power plant’s safety measures. This is critical as a great deal remains shrouded in mystery as to what the power company and its executives did or failed to do to prepare the plant for the kind of disaster that struck it six years ago.
The trial was set after an Inquest of Prosecutions, composed of ordinary citizens, twice overturned the prosecution’s decisions not to pursue charges against the former Tepco executives — former chairman Tsunehisa Katsumata, 77, and two ex-vice presidents, Sakae Muto, 67, and Ichiro Takekuro, 71.
Three lawyers, who acted as prosecutors to indict the men in February, charge that the former executives were well aware of the possibility that a tsunami higher than the Tepco plant site, which is 10 meters above sea level, could hit the facility and flood the reactor turbine buildings, resulting in a loss of power that would cause the plant’s cooling system to fail. Yet they neglected to take any precautionary measures to prevent such an outcome. Such negligence on the part of the Tepco executives, the lawyers charge, led to the hydrogen explosions at the plant’s Nos. 1 and 3 reactors on March 12 and 14, 2011, injuring 13 people at the scene and forcing patients at a nearby hospital to endure long hours of evacuation, which resulted in 44 deaths.
In the opening session of the trial on Friday, the former top executives all pleaded not guilty, saying it was impossible for them to foresee the tsunami and the nuclear disaster.
In a civil suit in which some 140 Fukushima residents who evacuated to Gunma Prefecture due to the nuclear disaster demanded ¥1.5 billion in damages, the Maebashi District Court has ordered the government and Tepco to pay ¥39 million in compensation, ruling that they could have foreseen the tsunami hitting the plant. But to establish criminal responsibility on the part of the individual executives, it must be proven that they could have foreseen the occurrence of a calamity in concrete terms — instead of just being vaguely aware of the danger.
One point at issue in the trial is an estimate made by a Tepco subsidiary in 2008 — based on the government’s assessment of long-term quake risks — that if an earthquake of magnitude 8.2 — similar in intensity to the 1896 quake off the Sanriku coast of Tohoku — occurred off Fukushima Prefecture, a tsunami with a maximum height of 15.7 meters could strike the plant site. During the civil suit proceedings that in 2008, Muto said that he had been informed of the estimate, along with an explanation from the subsidiary that a seawall 10 meters high needed to be built to protect the plant site, and that he gave an instruction to look into how to get government approval for building such a seawall. When interrogated by prosecutors, Takekuro said he had been informed of the estimate in April or May 2009. However, Katsumata has denied that he had been informed of the estimate — although the Inquest of Prosecution suspects that he must have received the information by June that year.
Although Tepco discussed measures to protect key facilities at the plant against flooding by a tsunami, the company eventually took no concrete action. Not enough has been made known as to what specific information the executives received and what judgments they made after they received the tsunami estimate.
Although the government, the Diet and Tepco each conducted probes into the Fukushima nuclear disaster, they have been unable to clarify why the power company failed to take prompt measures in response to data showing the potential risk of a tsunami occurring that could damage the plant. This trial may be the last chance to scrutinize Tepco’s decision-making process over the safety of the Fukushima No. 1 plant. The court and the prosecution should do their utmost to clarify not only the responsibility of the Tepco executives for the Fukushima plant disaster but also that of the government as the supervisory authority.
‘Dry retrieval’ plan for nuclear fuel debris at Fukushima plant set to be adopted
A public-private organization decommissioning the stricken Fukushima No. 1 nuclear power plant is poised to adopt a “dry” nuclear fuel retrieval method — extraction without filling the containment vessels with water — for the three reactors at the station that melted down in March 2011, the Mainichi Shimbun has learned.
Sources close to the Nuclear Damage Compensation and Decommissioning Facilitation Corp. (NDF) say the method will be incorporated into the strategic plan for decommissioning that will soon be announced to the public. The government and Fukushima plant operator Tokyo Electric Power Co. (TEPCO) will establish fuel retrieval plans based on consideration of this method, and will deliberate a revision to the decommissioning road map as early as this summer.
Until now, the NDF had considered employing the submersion fuel retrieval method — filling the containment vessels with water — alongside the dry method. In the submersion method, water shields plant workers from radiation. The NDF, however, determined that repairing all damaged areas of the containment vessels in order to be able to fill the reactor wells to the top with water would be too difficult. Instead, for the time being, the NDF decided to prioritize dry removal of the nuclear fuel debris using robotic arms.
“It isn’t that we’ve decided to completely do away with the submersion method, but we have to think about how best to distribute the technological resources we have,” said one source closely involved with the NDF.
When using the dry nuclear fuel retrieval method, it is crucial to implement measures to prevent microscopic radioactive substances from spreading in the air. To counter this, the NDF is considering spraying water on the fuel as robotic arms are used to sever and retrieve the fuel debris.
The damage differs from reactor to reactor at the Fukushima No. 1 plant. Probes of the reactor interiors conducted by TEPCO have yet to directly observe the nuclear fuel, meaning that the shape and distribution of the debris remain unknown. Fuel removal methods specific to the state of each reactor must be decided before moving ahead.
In the No. 1 reactor, much of the nuclear fuel is believed to have melted through the pressure vessel onto the floor of the reactor containment vessel. Inserting a robotic arm through the side of the containment vessel to remove the melted fuel is under primary consideration to deal with this situation.
http://mainichi.jp/english/articles/20170705/p2a/00m/0na/008000c
Fukushima Daiichi reactors internal estimates by Tepco
In dismantling the Fukushima Daiichi nuclear power plant, it is essential to grasp the state of nuclear fuel melted its nuclear reactors, but the radiation is very high and it is difficult to see inside. Under these circumstances, TEPCO announced a new estimate chart for the interior of the three nuclear reactors.
TEPCO announced the estimate inside the nuclear reactors at the International Forum on Waste Plant on the July 3rd, 2017. In the inside of the nuclear reactor of Unit 3, a part of the nuclear fuel collapsed to the bottom of the pressure vessel and is stacked like a garbage while keeping its shape. Meanwhile, it seems that molten nuclear fuel has fallen to the bottom of the storage container beneath, but when analyzing the data at the time of the accident again, it is said that there is a possibility that it is eroding the concrete on the floor of the containment vessel .
Estimates were obtained reflecting computer simulations and recent internal surveys, etc. Based on these estimates, the government decided how to remove “fuel debris”.
https://headlines.yahoo.co.jp/videonews/nnn?a=20170703-00000081-nnn-soci
Sailors’ $1 billion lawsuit over radiation from Fukushima nuclear disaster sails through federal court
SAN FRANCISCO — A federal appeals court rejected affirmed a district court’s rejection of a Japanese power company’s motion to dismiss a $1 billion lawsuit brought by American sailors, who were allegedly harmed by radiation exposure during a relief effort following the Fukushima nuclear disaster.
On June 22, a three-judge appellate panel from the U.S. Court of Appeals for the Ninth Circuit unanimously rejected an attempt by the Tokyo Electric Power Company (TEPCO) to secure the dismissal of the class-action lawsuit. The suit was launched by American sailors who allegedly sustained injuries related to radiation exposure from the Fukushima Daiichi Nuclear Power Plant during a relief effort in the wake of an earthquake and tsunami in March 2011.
The appellate panel affirmed the U.S. District Court for the Southern District of California’s rejection of TEPCO’s motion to have the suit dismissed on the grounds that U.S. courts lacked jurisdiction to try the case.
TEPCO’s initial challenge to U.S. jurisdiction is rooted in its interpretation of the Convention on Supplementary Compensation for Nuclear Damage (CSC), a 1997 international liability agreement concerning nuclear accidents. TEPCO argued that Article XIII of the CSC, which states “jurisdiction over actions concerning nuclear damage from a nuclear incident shall lie only with the courts of the contracting party within which the nuclear incident occurs,” invalidates U.S. jurisdiction. The appellate panel affirmed the district court’s ruling that the CSC, though signed in 1997, was only valid after it went into effect in April 2015. The sailors launched the lawsuit in December 2012.
TEPCO also challenged U.S. jurisdiction by citing international comity, a legal tradition allowing courts to decline jurisdiction in a court case when a foreign country has a “strong interest” in trying the case on its own soil. The appellate panel rejected this argument, noting that even though Japan had a strong interest in a case involving an incident on Japanese soil, the U.S. had a strong interest in prosecuting the case in the U.S. because the alleged victims were members of the U.S. military, and the U.S. “had a strong interest in maintaining jurisdiction over this [case] in order to help promote the CSC.”
TEPCO’s final challenge to U.S. jurisdiction was that the case violated U.S. constitutional law because it conflicted with the political question doctrine, which restricts the federal judiciary to deciding legal questions and bars it from deciding political questions.
The panel also rejected this argument, ruling that at this time the court was “unable to undertake the ‘discriminating inquiry’ necessary to determine if the case presented a political question because there were outstanding basic factual questions regarding the Navy’s operations” during the relief effort. However, the panel noted that TEPCO was free to raise the international comity and political question issues again if information was uncovered providing justifications for those arguments.
The sailors represented in the case were deployed off the coast of Fukushima aboard the U.S.S. Ronald Reagan aircraft carrier on March 12, 2011, during Operation Tomodachi, a U.S. relief response following an earthquake and tsunami that caused massive damage to the region. The carrier was moved two days later, allegedly after radiation was detected.
The sailors allege they were harmed by radiation exposure because TEPCO leadership and Japanese government officials allegedly conspired to downplay the threat posed by the damaged nuclear reactor.
The sailors launched the lawsuit on Dec. 21, 2012, seeking $10 million in damages each, along with $30 in punitive damages, and a $100 million healthcare fund for future monitoring and medical treatment.
http://norcalrecord.com/stories/511141853-sailors-1-billion-lawsuit-over-radiation-from-fukushima-nuclear-disaster-sails-through-federal-court#.WVst0i2bROI.facebook
Results of Radioactive Analysis around Fukushima Daiichi Nuclear Power Station
Results of radioactive nuclide analysis for groundwater at the east side of Unit 1-4 Turbine Buildings and seawater at the port in order to monitor the source, the extent, and the effect of the radioactive materials in the groundwater toward the ocean.
Underground water observation hole No.1, published Jun 28, 2017:
- Gross Beta = 24,000,000 Becquerels per cubic meter (24,000 Becquerels per liter) *1
Underground water observation hole No.3-5, published Jun 27, 2017:
- Tritium = 190,000 Becquerels per cubic meter (190 Becquerels per liter) *1
See all results from June 2017 here
http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/index-e.html
Anti-tsunami policy shift key to criminal trial of ex-TEPCO execs
In this March 11, 2011 file photo, waves are seen washing over a 10-meter-high breakwater and approaching the Fukushima No. 1 nuclear plant
The key point of contention in the criminal trial of former top Tokyo Electric Power Co. (TEPCO) executives over the 2011 nuclear crisis will likely be their decisions on tsunami prevention measures after the utility itself estimated in 2008 that tsunami with a maximum height of 15.7 meters could hit its Fukushima No. 1 nuclear plant.
Former TEPCO Chairman Tsunehisa Katsumata and former vice presidents Ichiro Takekuro and Sakae Muto were slapped with mandatory indictments by lay reviewers after public prosecutors twice decided not to press charges. Their trial began on June 30, when all three pleaded not guilty and emphasized that it was impossible for management to predict the nuclear accident.
In his opening statement, lawyer Hiroshi Kamiyama, who has been appointed prosecutor by the court, slammed the TEPCO ex-managers, saying, “After TEPCO learned that over 10-meter-tall tsunami could hit the plant, the company put off countermeasures and irresponsibly continued to operate the facility as-was.”
The key question in the nuclear crisis investigation had been whether the 2002 long-term assessment report by the government’s Headquarters for Earthquake Research Promotion stating that massive tsunami could occur off the Pacific Coast from the Sanriku to the Boso areas, was sufficiently credible to require TEPCO to implement countermeasures. The Tokyo District Public Prosecutors Office in September 2013 dropped a criminal case against the former TEPCO management, arguing that the assessment was “not academically developed enough.”
In response, Kamiya and other court-appointed attorneys argued during the June 30 hearing that those in charge of nuclear power facility management in fact tried to map out tsunami countermeasures based on the 2002 assessment, but TEPCO as a company put off implementing them.
Based on the government’s 2002 assessment, a TEPCO-affiliated company in March 2008 reported to the utility headquarters that tsunami with a maximum height of 15.7 meters could strike the Fukushima No. 1 plant. TEPCO officials at the nuclear power facility management department immediately ordered the affiliated firm to determine how tall a levee was required to prevent flooding of the plant, which stands 10 meters above sea level. The firm reported that a 10-meter-tall seawall would be necessary.
These figures were then reported to then Fukushima plant chief Masao Yoshida and then vice president Muto, who was in charge of the matter at the time. Muto, however, asked the Japan Society of Civil Engineers to re-evaluate the tsunami height estimates, and shelved countermeasures at TEPCO facilities as a whole.
The prosecution also pointed out that this “policy shift” continued to be debated within the utility. A note saying “tsunami prevention measures cannot be avoided” was circulated at a September 2008 meeting, and Yoshida told a February 2009 executive meeting — attended by the three defendants — that “some say tsunami of about 14 meters tall could hit the plant.”
However, lawyers for the former executives argued that contrary to the prosecution’s assertion of “a policy shift” in tsunami countermeasures, TEPCO had not set a particular policy to begin with. They insisted that the 15.7-meter tsunami estimate was a “trial calculation,” squarely denying the prosecution’s argument. Amid this clash, witness testimony on how the matter was understood within the utility’s ranks will be key.
Parties related to civil lawsuits over the nuclear crisis are paying close attention to the criminal trial, as many major points of dispute overlap.
The Maebashi District Court in March handed down the first ruling of the roughly 30 class action law suits filed by nuclear evacuees and other parties, in which the court acknowledged the liability of both TEPCO and the Japanese government. The Chiba and Fukushima district courts are expected to hand down rulings in other civil cases by the end of the year.
Lawyer Hideaki Omori, co-head of the legal team representing those affected by the Fukushima nuclear meltdowns, says that many details have yet to be uncovered, such as what discussions were held within TEPCO over tsunami countermeasures. He adds, “While criminal trials look into individual responsibility, the responsibility of the three defendants, who were at the center of the organization, is equivalent to that of TEPCO.”
TEPCO declined to comment on the criminal trial.
http://mainichi.jp/english/articles/20170701/p2a/00m/0na/031000c
Fukushima trial should clarify why TEPCO execs didn’t act
An artist’s concept of seawalls to protect the Fukushima No. 1 nuclear power plant from tsunami
The first criminal trial over the 2011 Fukushima nuclear disaster is now under way, drawing fresh attention to key questions concerning the devastating accident and its lasting reverberations.
The focus of public attention will be on whether the reams of evidence collected by public prosecutors, along with statements by those in charge, will provide a clearer picture of how the disaster unfolded.
Three former executives of Tokyo Electric Power Co., which operated the crippled Fukushima No. 1 nuclear power plant, pleaded innocent June 30 in the first hearing held at the Tokyo District Court.
They are charged with professional negligence resulting in the deaths of 44 people who had to be evacuated from a hospital near the plant, and injuries of others.
While the Tokyo District Public Prosecutors Office twice decided not to press charges against the three, citing a lack of evidence, independent judicial panels of citizens voted for mandatory indictments against them.
The core question for the trial judge is whether it was possible for them to predict the towering tsunami that inundated the plant, triggering a triple meltdown, and take effective safety measures to prevent the catastrophe.
In his opening statement, the lawyer acting as a prosecutor asserted that the three former TEPCO executives had the “ultimate obligation and responsibility” to ensure the safety of the nuclear facility.
He cited a 2008 estimate by a TEPCO subsidiary involved in the operation of the Fukushima plant that pointed to the “shocking” possibility of the plant being struck by tsunami of up to 15.7 meters. The TEPCO officials proposed that measures be taken to protect the plant from such a tsunami, including the construction of a seawall, but the three executives decided to postpone taking such steps.
The defense team countered by reiterating its argument that it was merely one of many estimates and constitutes no reason to claim that the defendants were able to predict and avoid the accident.
In 2002, a government agency warned that a massive earthquake capable of generating huge tsunami could occur anywhere off the Pacific coast from the northern Sanriku region in Tohoku down to the Boso region in Chiba Prefecture.
The huge 2004 Indian Ocean earthquake and tsunami caused damage to nuclear power facilities in India.
Japanese nuclear regulators at that time called for steps to enhance the safety of nuclear power plants.
Six years since the harrowing accident, there are still many questions that remain unanswered with regard to TEPCO’s responses to these warnings and developments. How seriously did the utility consider additional safety measures? What steps did the company actually take and fail to take? What are the reasons for its decisions?
There is no denying that most of the TEPCO people involved have done little to help clear up the facts. Their behavior has been marked by insincerity.
The three defendants were summoned by the Diet’s committee that looked into the accident as unsworn witnesses and answered various questions in public.
After that, however, they showed no willingness to offer their own accounts of what happened.
Like many other TEPCO executives, the three defendants have, to this day, refused to agree to their statements made in interviews by the government’s investigative committee to be made public.
Criminal trials are held to determine whether the defendants should be held criminally liable.
The rights of the defendants provided by the Constitution and the Criminal Procedure Law should, naturally, be respected. That means there is a limit to what a criminal court can do to clear up the truth.
While recognizing the limitations of what a criminal trial can achieve, we sincerely hope it will shed new light on the accident.
This hope is obviously shared by not just the survivors who have lost their families and hometowns in the accident but also countless others who were affected by the disaster.
The defendants have a duty to help disclose the truth.
In addition to determining whether or not the defendants are guilty of professional negligence, the trial offers an opportunity to reflect deeply on some key questions concerning nuclear power and the related roles of electric utilities and the government; for example, can the safety of nuclear plants be ensured and is there really a viable future for nuclear power generation in this earthquake-prone nation.
Tepco Prepares the Reactor 3 New Cover
It is a Japanese project. That’s what it will give, It’s not a sarcophagus, just a structure to carry the cranes that will empty the pool.
They have already tried ground construction in Iwaki
Credits to Pierre Fetet.
Fukushima nuclear disaster: former Tepco executives go on trial
Three men plead not guilty to professional negligence in the only criminal action targeting officials since the triple meltdown
From left, former Tepco executives Tsunehisa Katsumata, Ichiro Takekuro and Sakae Muto arriving at court in Tokyo on Friday.
Three former executives with the operator of the destroyed Fukushima Daiichi nuclear power plant have pleaded not guilty to charges of professional negligence, in the only criminal action targeting officials since the triple meltdown more than six years ago.
In the first hearing of the trial at Tokyo district court on Friday, Tsunehisa Katsumata, who was chairman of Tokyo Electric Power (Tepco) at the time of the disaster, and two other former executives argued they could not have foreseen a tsunami of the size that knocked out the plant’s backup cooling system, triggering a meltdown in three reactors.
“I apologise for the tremendous trouble to the residents in the area and around the country because of the serious accident that caused the release of radioactive materials,” Katsumata said, bowing slightly.
Prosecutors alleged that the 77-year-old, along with his co-defendants, Sakae Muto, 67, and Ichiro Takekuro, 71 – both former Tepco vice-presidents – had been shown data that anticipated a tsunami of more than 10 metres in height that could cause a power outage and other serious consequences.
Activists protest against Tepco on Friday.
A report by a government panel said Tepco simulated the impact of a tsunami on the plant in 2008 and concluded that a wave of up to 15.7 metres (52 feet) could hit the plant if a magnitude-8.3 quake occurred off the coast of Fukushima. Executives at the company allegedly ignored the internal study.
The three men – charged with professional negligence resulting in death and injury – have since retired from Tepco.
The company, which faces a multibillion-dollar bill for decommissioning Fukushima Daiichi, is not a defendant in the trial. If convicted, the men face up to five years in prison or a penalty of up to 1m yen (£7,000).
Although there are no records of anyone dying as a result of exposure to radiation from the plant, prosecutors alleged the executives were responsible for the deaths of 40 elderly people who were evacuated from a hospital near the plant.
The Fukushima plant had a meltdown after the tsunami, triggered by a magnitude-9 earthquake, hit the plant on the afternoon of 11 March 2011.
The tsunami killed almost 19,000 people along the north-east coast of Japan and forced more than 150,000 others living near the plant to flee radiation. Some of the evacuated neighbourhoods are still deemed too dangerous for former residents to return to.
“They continued running the reactors without taking any measures whatsoever,” the prosecutor said. “If they had fulfilled their safety responsibilities, the accident would never have occurred.”
Muto challenged the allegation by the prosecution that he and the other defendants failed to take sufficient preventative measures despite being aware of the risk of a powerful tsunami more than two years before the disaster.
“When I recall that time, I still think it was impossible to anticipate an accident like that,” he said. “I believe I have no criminal responsibility over the accident.”
Investigations into the accident have been highly critical of the lax safety culture at Tepco and poor oversight by industry regulators. Prosecutors considered the case twice, and dropped it both times, but a citizens’ judicial panel overrode their decision and indicted the former executives.
Outside the court, Ruiko Muto, a Fukushima resident and head of the group of plaintiffs, said: “Since the accident, nobody has been held responsible nor has it been made clear why it happened. Many people have suffered badly in ways that changed their lives. We want these men to realise how many people are feeling sadness and anger.”
https://www.theguardian.com/environment/2017/jun/30/fukushima-nuclear-crisis-tepco-criminal-trial-japan
Three former executives of the operator of the crippled Fukushima Daiichi nuclear power plant have pleaded not guilty over the March 2011 accident.
Nuclear meltdowns occurred at the plant after it was hit by a giant earthquake and tsunami on March 11, 2011.
The defendants are former Tokyo Electric Power Company Chairman Tsunehisa Katsumata and former Vice Presidents Ichiro Takekuro and Sakae Muto.
They are accused of professional negligence resulting in the deaths of 44 people, including hospital patients forced to stay at evacuation shelters for a long period.
At the start of the trial at the Tokyo District Court on Friday, Katsumata apologized for the serious accident, and causing a great nuisance and concern.
But he said it was impossible to predict the tsunami, and the nuclear accident that followed, at the time.
Takekuro and Muto also offered apologies but pleaded not guilty.
Points of contention will likely include whether the defendants were able to predict that a huge tsunami would hit the plant, and whether the accident could have been prevented if proper steps had been in place.
This is the first trial concerning criminal responsibility for an accident at a nuclear power plant.
Public prosecutors decided not to file charges against the 3 former executives in 2013. But they were indicted in February last year by court-appointed lawyers in line with the decision by a prosecution inquest panel of randomly selected citizens.
Fukushima ice wall nears completion
An underground ice wall being built to keep groundwater from entering the crippled nuclear reactor buildings in Fukushima is expected to be completed soon.
Workers at the Fukushima Daiichi nuclear power plant are circulating coolant in pipes buried around the buildings to make the 1.5 kilometer-long barrier.
The operator, Tokyo Electric Power Company, hopes to keep groundwater from being contaminated with radioactive substances.
The utility has so far left part of the wall unfrozen, due to fears that freezing the entire area could lead to a sharp drop in groundwater levels outside the reactor buildings, which could cause the tainted water to leak out.
On Wednesday, the Nuclear Regulation Authority gave basic approval for the utility’s plan to freeze a 7 meter-wide section that remains on the mountain side.
Utility officials have explained to authority members that the groundwater level won’t plunge and that they are prepared for such an emergency.
TEPCO says that as soon as it gets official approval it will start freezing the remaining section of the wall. It has been functioning for about 15 months.
The daily amount of groundwater flowing into the buildings is now about 100 tons, compared with some 400 tons per day at the start of the operation.
The utility says the completion of the ice wall will further reduce the amount. The regulators plan to monitor the effects of the barrier after it is completed.
Japanese government conveys regret over Moon’s Fukushima nuclear crisis remarks
Japanese government now would like also to censor South Korea President Moon Jae-in speaking about the Fukushima Daiichi nuclear disaster. How arrogant! Does it want also to impose its law of secrecy beyond Japan’s borders?
Japan wake up! South Korea is not your colony anymore! It is a free independent country, a developped nation, with an elected democratic government which cares about its people, a government which was smart enough to learn from your mistakes so as to not make the same mistakes themselves.
South Korea President Moon Jae-in speaks on the country’s nuclear power policy last week at the Kori nuclear power plant. | YONHAP / VIA KYODO
SEOUL – The government has expressed regret over recent remarks by South Korean President Moon Jae-in about the March 2011 crisis at the Fukushima No. 1 plant, according to sources.
“The accident in 2011 at the Fukushima nuclear power plant brought the death toll to 1,368 as of March 2016,” Moon said in a speech June 19 in which he announced plans to review South Korea’s nuclear power policy comprehensively based on lessons from the Fukushima accident.
The Japanese government told a counselor at the South Korean Embassy in Tokyo that “the remark is very regrettable as it is not based on a correct understanding of the accident,” informed sources said Monday.
The regret was conveyed Thursday, according to the Japanese Foreign Ministry.
After Moon made the remark, some people pointed out that the comment could cause misunderstanding since it has no clear basis.
A ministry official said Japan will boost its efforts to provide correct information about the accident in order to dispel harmful rumors.
The plant operated by Tokyo Electric Power Company Holdings Inc. was heavily damaged in the March 2011 earthquake and tsunami, with three reactors suffering a meltdown. Nobody was killed directly in the accident.
Also in the speech, delivered at a ceremony to mark the closure of the oldest nuclear reactor in South Korea, Moon said, “Worse yet, it is impossible to even grasp the number of deaths or cancers caused by radioactive contamination.”
In documents released Friday to explain Moon’s remarks, the South Korean Ministry of Trade, Industry and Energy said some Japanese media reported on March 6 last year that 1,368 people had died during protracted life in evacuation.
An interim report on health surveys on Fukushima residents that was compiled in March 2016 by the prefectural government said cases of thyroid cancer that had been detected in the prefecture since the accident are unlikely to have been caused by effects from radiation.
The report also said that external exposure suffered by Fukushima residents are not at levels that pose health hazards.
http://www.japantimes.co.jp/news/2017/06/26/national/japanese-government-conveys-regret-moons-fukushima-nuclear-crisis-remarks/#.WVJQ_CcTEwg
1 This Month
of the week – Shut Down Drone Warfare!
Tell the Ukrainian Government to Drop Prosecution of Peace Activist Yurii Sheliazhenko
Petition to revoke the licensing of the Near Surface Nuclear Disposal Facility (NSDF) at Chalk River. https://www.ourcommons.ca/petitions/en/Petition/Details?Petition=e-7247
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