Die Zahl der Kommentare auf unsere Fukushima-Beiträge ist jenseits der 1000er Marke. Es wird zu unübersichtlich!
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Zu einer kleinen Einführung, hier entlang.
Ihr seid neu hier? Das physikBlog hat in vier Artikeln den Unfall von Fukushima begleitet. Eine Lektüre, zumindest des Aktuellsten, empfiehlt sich vor dem Mitdiskutieren!
Es sei erwähnt, dass wir bei der Moderation der Kommentare hier weniger streng sind, als im Blog. Ihr seid freier in eurer Themenwahl.
Viel Spaß, André & Andi vom physikBlog.
http://www.publicbroadcasting.net/kios/news.newsmain/article/0/0/1812305/Omaha.Public.Radio.News/OPPD.issues.Notification.of.Unusual.Event.for.Ft..Calhoun.nuclear.plantOMAHA, NE (KIOS) - Rising Missouri River flood water has forced OPPD to declare a Notification of Unusual Event at its Fort Calhoun Nuclear Plant.
OPPD made the announcement in a news release this afternoon. Such notifications are made when events are happening or have happened that will impact the plant. In the news release, OPPD says the river is expected to rise to 1,004 feet above sea level this week and remain there for at least a month.
As the Missouri River continues to swell, the US state of Nebraska has issued an emergency flood warning at the Cooper Nuclear Power Station.
The Nebraska Public Power District has issued a flood alert for the state's southeast Cooper nuclear plant, the Associated Press reported.
"We knew the river was going to rise for some time," said Columbus-based utility spokesman Mark Becker, adding that it was just a matter of time.
The water level at the Cooper plant station currently stands at 13.6 meters. If water levels reach 13.9 meters, the station may be shut down.
Flash flood warnings have also been issued for several counties in the state of Missouri.
Nebraska's Fort Calhoun nuclear plant has been shut down, as water is currently being held back by a series of barriers, including an 8-foot rubber wall.
The Cooper and Fort Calhoun nuclear plants are the only plants along the Missouri River.
Heavy rainfall and melting snow on the Rocky Mountains are expected to keep the river's water level high until August.
A berm holding the flooded Missouri River back from a Nebraska nuclear power station collapsed early Sunday, but federal regulators said they were monitoring the situation and there was no danger.
The Fort Calhoun Nuclear Station shut down in early April for refueling, and there is no water inside the plant, the U.S. Nuclear Regulatory Commission said. Also, the river is not expected to rise higher than the level the plant was designed to handle. NRC spokesman Victor Dricks said the plant remains safe.
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The berm's collapse didn't affect the reactor shutdown cooling or the spent fuel pool cooling, but the power supply was cut after water surrounded the main electrical transformers, the NRC said. Emergency generators powered the plant until an off-site power supply was connected Sunday afternoon, according to OPPD.
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Flooding remains a concern all along the Missouri because of massive amounts of water the U.S. Army Corps of Engineers has released from upstream reservoirs. The river is expected to rise as much as 5 to 7 feet above flood stage in much of Nebraska and Iowa and as much as 10 feet over flood stage in parts of Missouri.
The corps expects the river to remain high at least into August because of heavy spring rains in the upper Plains and substantial Rocky Mountain snowpack melting into the river basin.
Raging wildfires in New Mexico forced the evacuation of the famed nuclear lab at Los Alamos Monday, though officials insist that radioactive material is secure.
Fires have burned as close as one mile from the government lab - threatening buildings, power lines and gas lines, officials said.
"Lab emergency crews have been dispatched across the lab to protect key facilities and materials," said lab spokesman Jeff Berger.
"Protected areas include all hazardous and radioactive facilities and our proton accelerator and super-computing centers."
At approximately 0125 CDT, the AquaDam providing enhanced flood protection for Fort Calhoun Station Unit 1 failed.
This resulted in approximately 100 gallons of petroleum being released into the river after a protective barrier was breached and many fuel containers were washed out to the river. The fuel/oil containers were staged around the facility to supply fuel for pumps which remove water within the flood containment barriers.
OMAHA — Missouri River floodwater seeped into the turbine building at a nuclear power plant near Omaha on Monday, but plant officials said the seepage was expected and posed no safety risk because the building contains no nuclear material.
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Omaha Public Power District spokesman Jeff Hanson said pumps were handling the problem at the Fort Calhoun Nuclear Station and that "everything is secure and safe."
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