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Intro: "Nuclear plant emergency generators like those that failed in Japan following the March earthquake and tsunami also failed during tests at the Seabrook Station in New Hampshire and 32 other US plants in the past eight years, according to a report by US Representative Edward J. Markey's office."

Seabrook Station Nuclear Power Plant. (photo: file)
Seabrook Station Nuclear Power Plant. (photo: file)



32 US Nuclear Plants Fail Safety Tests

By Beth Daley, The Boston Globe

13 May 11

 

Report comes as panel deems US sites safe.

uclear plant emergency generators like those that failed in Japan following the March earthquake and tsunami also failed during tests at the Seabrook Station in New Hampshire and 32 other US plants in the past eight years, according to a report by US Representative Edward J. Markey's office.

The report was issued yesterday by the Malden Democrat's office as a federal task force vouched for the safety of the nation's nuclear plants in the aftermath of the Japanese crisis, triggered in part by the failure of backup generators at one plant.

The Seabrook incident, according to the report, took place in August 2006, when the plant shut down because of "inoperable emergency diesel generators." The generators were inoperable for one day.

Alan Griffith, a spokesman for NextEra, which owns Seabrook, said the problem occurred when one of two backup generators was taken down for routine maintenance and a voltage problem occurred at the other during a test. It was quickly repaired, but Nuclear Regulatory Commission rules require the plant to shut down if a certain number of generators are not operational.

Markey criticized the NRC for becoming too cozy with the industry it oversees and compromising safety. The report noted that NRC regulations do not require emergency diesel generators to be operational when there is no fuel in a nuclear reactor core - creating the possibility that in a power failure, spent fuel rods stored on site could be left without a functioning cooling system. In Japan, large amounts of radioactive material escaped from a spent-fuel pool at the Fukushima Daiichi plant after cooling systems failed. Japanese officials said yesterday that one of the reactors at that plant appears to be more damaged than originally thought.

"An examination of NRC regulations demonstrates that flawed assumptions and under-estimation of safety risks are currently an inherent part of the NRC regulatory program, due to a long history of decisions made by prior Commissions or by the NRC staff that have all too often acquiesced to industry requests for a weakening of safety standards," the report said.

Markey, a nuclear opponent, hopes the report persuades the NRC not to issue license extensions for nuclear plants until it finishes reviews and upgrades its safety requirements. That appears unlikely to happen - since the Japan quake, the agency has approved a 20-year license renewal at Vermont Yankee and at three reactors at an Arizona plant.

But even as the task force gave safety assurances yesterday, its members said they are likely to recommend changes in rules to enhance safety and preparedness of US plants - and lower the level of risk. The group, made up of senior NRC staffers, said it will address a range of issues at nuclear plants, including their ability to cope with prolonged power outages caused by earthquakes, fires, or other catastrophes.

Markey's report homed in on backup generators whose failures rendered them inoperable for at least a day, noting there have been at least 69 reports of problems with emergency diesel generators during testing at 33 nuclear plants. A total of 48 reactors were affected. The failures included 19 that lasted over two weeks and six that lasted longer than a month, the report says.

Neil Sheehan, a NRC spokesman, said that the agency takes "the maintenance and testing of emergency diesel generators very seriously, as their lack of availability raises plant safety risk. The NRC has taken enforcement action against many plants for problems involving the generators. We also track issues associated with them through our Performance Indicators and inspections."

At Seabrook, Griffith stressed that there are three separate power lines that come into the plant and multiple levels of redundancy in case of power loss.

"These generators are not used to run the plant [day to day], they are for emergencies," he said. "What is most important is that there are multilayered safety systems in place to ensure there is always sufficient power."

At the Globe's request, the NRC searched its records for reports of other problems involving backup generators at New England plants. The agency said it found problems at both Seabrook and the Pilgrim Nuclear Station in Plymouth and there could be more. Most involved tests or inspections of the systems.

In 2001, a violation of "low to moderate safety significance" was given to Seabrook for not fixing degraded components related to emergency generation. And the plant got the same level of violation in November 2009 when it failed to assure suitable parts were chosen for a generator, which failed as a result.

Pilgrim, owned by Entergy, also received two citations, although for more minor issues. In 2005, it failed to develop adequate instructions to start a diesel generator if power was lost - during an actual loss of power to auxiliary equipment, a generator did not start. And in May 2009, it was cited by the agency for failing to ensure there was an adequate supply of air to generators, which resulted in one generator becoming inoperable during a test. Entergy fixed that problem right away, and a spokeswoman said yesterday that both issues were minor.

"In both instances, two other emergency diesel generators were available as backup power if needed during the short time frame the others were not operable, as well as other electric power sources," spokeswoman Carol Wightman said.


Material from the Associated Press was used in this report.

 

Comments   

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+9 # Ken Hall 2011-05-13 21:15
Nuclear power is:

A) Safe

B) Inexpensive

C) Green and non-polluting

D) A good alternative to renewable technologies

E) None of the above
 
 
+2 # LeeBlack 2011-05-13 22:30
I assume option A includes the safety of storage of waste.
 
 
+4 # Greg Iverson 2011-05-14 08:34
There is NO "safe" storage of nuclear waste yet available.
 
 
+9 # beer man 2011-05-14 05:11
E))None of the above
 
 
+7 # billy bob 2011-05-14 06:27
The only answer I don't hear much on the msm is "none of the above", so my answer is "none of the above".
 
 
+5 # LeeBlack 2011-05-13 22:33
New slogans to accompany Drill, Baby, Drill -

Build, Baby, Build

Frack, Baby, Frack
 
 
+6 # billy bob 2011-05-14 06:26
This would be a great article for anyone who supports ron paul's election bid to comment.

Do you agree with him that we need to stop regulating industry?

Is voting for a teapublican who wants to legalize pot really worth the all of this?
 
 
+2 # carl lahser 2011-05-14 07:25
Consider global warming where the cooling water temperatures are too high and are shut off. Now the plant shuts down or blows up.
 
 
+5 # jeenious 2011-05-14 14:58
The arguments over whether business should be regulated or not has been going on for thousands of years. Those who have land and business and political power want more, and it certainly would be great for them if they could just do anything to anyone to get more. They have "arrived," whether by inheritance or by crime or by honest work, and now they want to be able to take their inheritance or their ill-gotten gains or, in some cases, the gains of their honest labors or brains, and USE THEM to get more, without being told they are gouging people, working people for less than enough to live on, taking away what smaller business owners have.

Al Capone just wanted to be left alone. The drug lords in Mexico just want to be left alone. Poor old Gaddafi just wants to be left alone. The coal mining corporations and plants they supply just want to be left alone. The mafia wants to be left alone.

Whoever is in the catbird seat, and has it made, and feels he is powerful enough to ram his terms down everybody's throat and run anybody smaller out of business or pollute without having somebody bigger do it to him, wants everybody LIKE HIM to be left alone. And, hey, why not? For HIM nothin's broke that's any skin off HIS nose. So he gets the Charlie Brown attitude:

Why is everybody pickin' on ME?
 
 
0 # millwright1 2011-05-16 06:01
There are 746 watts in one horsepower. Has anyone done the math when calculating just how many watts of electricity is going to be required to charge the batteries of all the electric cars driven by the day shift workers of the entire US who arrive at home at almost the same time in thier respective time zones. There will be a huge sucking sound on the already strained electrical generators in the US.
 
 
+1 # tanis 2011-05-16 06:39
Are there any women who openly advocate nuclear energy? All I have ever heard or read were men. Men have toys, women have children.
 

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