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Mystery fire at Ft. Calhoun nuke plant: Disabled ability to cool spent fuel pool — Feds sending special team of inspectors to learn more — Reactor will not restart until cause determined

Nuke plant fire gets closer look, Omaha World Herald by Nancy Gaarder, September 12, 2011:

The Nuclear Regulatory Commission is sending a special team of inspectors to Nebraska to learn more about a fire at the Fort Calhoun Nuclear Station not long after flooding [...]

The Omaha Public Power District, which owns the plant, . . . → Read More: Mystery fire at Ft. Calhoun nuke plant: Disabled ability to cool spent fuel pool — Feds sending special team of inspectors to learn more — Reactor will not restart until cause determined

Ft. Calhoun nuke plant can’t be inspected for damage until floodwaters recede — Restart may be some time next spring

Nuclear plant will wait to reopen, AP, July 28, 2011:

Officials plan an inspection after waters recede.

When the Fort Calhoun nuclear power plant will be able to restart is still not clear because the utility that operates it won’t be able to inspect it for damage until floodwaters from the overflowing Missouri River . . . → Read More: Ft. Calhoun nuke plant can’t be inspected for damage until floodwaters recede — Restart may be some time next spring

Local TV: Water has leaked into building containing radioactive material at Ft. Calhoun nuke plant — “That water we treat as radioactive waste” (VIDEO)

NRC Chairman says nuke plants safe, for now, Action 3 News, June 28, 2011:

At :40 in

We store radioactive material in that building. There is some minor water leakage into the building, and that water we treat as radioactive waste.

h/t Sarah in Omaha

100% chance of reactor core damage if floodwaters went above 1010 ft. at Ft. Calhoun nuke plant, NRC said in 2010 — River now around 1,007 ft. and expected to rise

The NRC in Action at Fort Calhoun, Monthly Review by Dave Lochbaum, June 27, 2011:

[...] During their routine inspections of weather protection readiness in 2010 [...] NRC estimated there was a 100% chance of reactor core damage caused by a flood rising above 1010 feet.  The table at the top of Figure 1 . . . → Read More: 100% chance of reactor core damage if floodwaters went above 1010 ft. at Ft. Calhoun nuke plant, NRC said in 2010 — River now around 1,007 ft. and expected to rise

NY Magazine: This will sound familiar — Backup generators are working to cool nuclear materials

Natural Disasters Affect Nuclear Plants In America, Too, New York Magazine, June 26, 2011:

[...] Mississippi River floodwaters have breached some of the protection around the Fort Calhoun nuclear plant in Nebraska, and now the water has reached containment buildings and transformers. Electricity has been cut [...] and this will sound familiar—backup generators are . . . → Read More: NY Magazine: This will sound familiar — Backup generators are working to cool nuclear materials

ABC: Federal gov’t “so concerned” about Ft. Calhoun situation that NRC chairman is headed to plant

Midwest Floods: Waters Breach Berm at Fort Calhoun Nuclear Station in Nebraska, ABC News, June 26, 2011:

[F]ederal inspectors are on the scene [at the Fort Calhoun Nuclear Station], and the federal government is so concerned the head of the Nuclear Regulatory Commission is headed to the plant. [...]

NRC Chairman to Visit Nebraska . . . → Read More: ABC: Federal gov’t “so concerned” about Ft. Calhoun situation that NRC chairman is headed to plant

NYT on Ft. Calhoun: Equipment ‘nicked’ 8 ft high, 2,000 ft long berm causing it to deflate

Concern at Nebraska Reactors as Floodwaters Rise, New York Times, June 26, 2011:

[...] Another reactor, Fort Calhoun, took two steps backward on Sunday. In the pre-dawn hours, a piece of heavy equipment nicked a temporary rubber berm, 8 feet high and 2,000 feet long, and it deflated. And water there began to approach . . . → Read More: NYT on Ft. Calhoun: Equipment ‘nicked’ 8 ft high, 2,000 ft long berm causing it to deflate

Flood berm collapsed after being punctured by an unidentified piece of machinery: OPPD

Flood berm bursts at Nebraska nuclear plant, CNN, June 26, 2011:

A water-filled berm protecting a nuclear power plant in Nebraska from rising floodwaters collapsed Sunday, according to a spokesman, who said the plant remains secure.

Some sort of machinery came in contact with the berm, puncturing it and causing the berm to deflate, . . . → Read More: Flood berm collapsed after being punctured by an unidentified piece of machinery: OPPD

OPPD: Water also leaking around concrete berm surrounding Ft. Calhoun nuke plant’s main transformers

Flood wall fails at Fort Calhoun, Omaha World Herald, June 26, 2011:

[Emphasis Added]

Floodwaters surrounded several buildings at the Fort Calhoun Nuclear Station early Sunday morning after a water-filled wall collapsed. [...]

Floodwater surrounded the nuclear plant’s main electrical transformers, and power was transferred to emergency diesel generators.

OPPD spokesman Jeff Hanson said . . . → Read More: OPPD: Water also leaking around concrete berm surrounding Ft. Calhoun nuke plant’s main transformers

WSJ reports press release from NRC saying Ft. Calhoun’s flood deficiencies were remedied — No mention of recent NYT report that NRC’s evaluation of plant’s new defenses is not complete

Nuclear Regulator to Visit Nebraska Plants, New York Times, June 24, 2011:

NRC Chairman Gregory Jaczko will observe plant preparations and the extent of flooding from the river at Cooper Nuclear Station Sunday and the Fort Calhoun nuclear-power plant Monday. [...]

Deficiencies in flood preparation at the Fort Calhoun plant were discovered during an . . . → Read More: WSJ reports press release from NRC saying Ft. Calhoun’s flood deficiencies were remedied — No mention of recent NYT report that NRC’s evaluation of plant’s new defenses is not complete

NRC yet to complete its evaluation of flood defenses installed at Fort Calhoun nuclear plant — Other flooding matter “still under investigation”

A Nuclear Plant’s Flood Defenses Trigger a Yearlong Regulatory Confrontation, New York Times, June 24, 2011:

[...] “We presented our analysis to them, which we felt indicated that the design basis (for the flooding threat) should remain 1,009 feet,” rather than 1,014 feet, [OPPD spokesman Jones] said. [..."W]e believe we are now in compliance . . . → Read More: NRC yet to complete its evaluation of flood defenses installed at Fort Calhoun nuclear plant — Other flooding matter “still under investigation”

Helicopter makes emergency landing near Ft. Calhoun nuke plant while checking if floodwaters had weakened power transmission lines

Helicopter Makes Emergency Landing Near Fort Calhoun, KETV, June 23, 2011:

OPPD Looks For Weaknesses In Transmission Lines

A helicopter surveying power lines was forced to make an emergency landing after reporting mechanical problems Thursday. [...] about 1 1/2 miles south of the Fort Calhoun nuclear power plant [...]

The company has been surveying . . . → Read More: Helicopter makes emergency landing near Ft. Calhoun nuke plant while checking if floodwaters had weakened power transmission lines

4 to 5 more inches of water at Nebraska nuke plants after 7% flow increase from dam: Army Corps of Engineers

The latest on flooding: June 23, Omaha World-Herald, June 23, 2011:

[...] On Tuesday, the Army Corps of Engineers announced that releases from Gavins Point would increase another 7 percent to 160,000 cubic feet per second.

That will add about 4 to 5 inches in the river’s level at Fort Calhoun and Cooper Nuclear . . . → Read More: 4 to 5 more inches of water at Nebraska nuke plants after 7% flow increase from dam: Army Corps of Engineers

ABC: “Two feet of water have already made its way to several areas of the Fort Calhoun plant” — “Authorities say there is no immediate danger”

Sirens Blare as Flooding Hits North Dakota, ABC News, June 22, 2011:

[...] Although the Fort Calhoun plant [...] is surrounded by an eight foot tall and 16 foot wide protective berm, two feet of water have already made its way to several areas of the Fort Calhoun plant, but authorities say there is . . . → Read More: ABC: “Two feet of water have already made its way to several areas of the Fort Calhoun plant” — “Authorities say there is no immediate danger”

NRC says it is “closely monitoring” Missouri River as floodwaters rise at Cooper and Fort Calhoun nuclear plants

NRC tracking flooding at two Nebraska nuclear power plants, Reuters, June 22, 2011:

The U.S. Nuclear Regulatory Commission (NRC) said Wednesday it was closely monitoring conditions along the Missouri River, where floodwaters were rising at Nebraska Public Power District’s Cooper Nuclear Station and Omaha Public Power District’s Fort Calhoun nuclear power plant in Nebraska. . . . → Read More: NRC says it is “closely monitoring” Missouri River as floodwaters rise at Cooper and Fort Calhoun nuclear plants

NYT: Fire before Ft. Calhoun’s spent fuel pool lost cooling power “remains under investigation”

Flooding Brings Worries Over Two Nuclear Plants, New York Times by A. G. SULZBERGER and MATTHEW L. WALD, June 20, 2011:

[...] Much of the attention has been focused on the Fort Calhoun plant because of recent concerns about its preparedness and the dramatic images of the structures surrounded in all direction by water, . . . → Read More: NYT: Fire before Ft. Calhoun’s spent fuel pool lost cooling power “remains under investigation”

NRC in 2010: Major flood could cause core damage at Ft. Calhoun nuke plant– Cited for second most serious category of violation

Flooding Brings Worries Over Two Nuclear Plants, New York Times by A. G. SULZBERGER and MATTHEW L. WALD, June 20, 2011:

[...] Last year, the Nuclear Regulatory Commission cited the Fort Calhoun plant for not being adequately prepared for floods and rated the safety violation in the “yellow” category, the second most serious. The . . . → Read More: NRC in 2010: Major flood could cause core damage at Ft. Calhoun nuke plant– Cited for second most serious category of violation

Two-thirds of hot nuclear fuel remains in reactor core at Calhoun plant even though media claims it was ‘shut down’ for refueling and maintenance

Rising water, falling journalism, Bulletin of the Atomic Scientists by Dawn Stover, June 16, 2011:

Virtually every article about the flooding mentions that the Fort Calhoun plant was shut down on April 9. On May 27, the Omaha World-Herald reported, “The Omaha Public Power District said its nuclear plant at Fort Calhoun, which is . . . → Read More: Two-thirds of hot nuclear fuel remains in reactor core at Calhoun plant even though media claims it was ‘shut down’ for refueling and maintenance

Omaha World-Herald: “Lots of questions today about the safety of the Fort Calhoun nuclear power plant. Check out this photo!”

Omaha World-Herald’s Photos, Facebook, June 16, 2011:

Lots of questions today about the safety of the Fort Calhoun nuclear power plant. Check out this photo!

This photo was taken today by the World-Herald's Matt Miller. That's the power plant near the bottom.

NBC Nightly News: Concerns building over condition of Ft. Calhoun nuclear plant (VIDEO)

Officials say flooded nuclear plant safe, NBC Nightly News with Brian Williams, June 16, 2011:

Visit msnbc.com for breaking news, world news, and news about the . . . → Read More: NBC Nightly News: Concerns building over condition of Ft. Calhoun nuclear plant (VIDEO)

NRC takes “unusual step” of sending top regional regulator and more inspectors to troubled Omaha nuke plant (PHOTO)

No danger seen at reactor, Omaha World-Herald, June 17, 2011:

Fort Calhoun was and continues to be one of the NRC’s most tightly monitored plants because of problems it had before the flooding.

[Victor Dricks, spokesman for the Nuclear Regulatory Commission] said the NRC has taken the unusual step of sending more inspectors and . . . → Read More: NRC takes “unusual step” of sending top regional regulator and more inspectors to troubled Omaha nuke plant (PHOTO)

Radioactive releases “not expected” at Omaha nuke plant — “As of now, there has been no risk to the public”

Radioactive Releases Not Expected at Omaha Nuclear Power Plant, ABC, June 16, 2011:

Officials at the Omaha Public Power District say there have been no releases of radioactive material since flooding from the Missouri River caused them to declare a low-level emergency June 6 at the Fort Calhoun nuclear power plant.

The emergency level, . . . → Read More: Radioactive releases “not expected” at Omaha nuke plant — “As of now, there has been no risk to the public”

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