Legalectric

Alan’s been digging around looking at the old nuclear demonstration plants, particularly since my father worked on the Elk River plant in Minnesota, now decommissioned.  and lo and behold, Genoa is/was another Allis-Chalmers nuclear plant, although it’s a different branch of the family:

Nuclear Fuel Assembly: Curator’s Favorites

How bizarre…

And now for something a little more current:

State’s 2 nuclear plants will get post-Fukushima upgrade

Don’t forget that our Monticello GE reactor is similar to Fukushima reactors.  Enough about upgrades – SHUT THEM DOWN!

Thanks to a reporter (THANK YOU THANK YOU THANK YOU!!!), I’ve got the recently release Sandia report:

Granite Disposal of U.S. High-Level Radioactive Waste – Sandia National Laboratories

This was released in August 2011.  It’s making the rounds now.

Here’s the part that really scares me, right there on the first page:

Unlike the safety analyses for disposal in salt, shale/clay, or deep boreholes, the safety analysis for a mined granite repository depends largely on waste package preservation. In crystalline rock, waste packages are preserved by the high mechanical stability of the excavations, the diffusive barrier of the buffer, and favorable chemical conditions. The buffer is preserved by low groundwater fluxes, favorable chemical conditions, backfill, and the rigid confines of the host rock. An added advantage of a mined granite repository is that waste packages would be fairly easy to retrieve, should retrievability be an important objective.

Yes, it’s on page one (do I even want to read past page one? NOOOOO).  What’s scary about that?  Well, back in “Nuclear Waste Daze” representing Florence Township,  I learned more than I wanted to know about “waste package preservation,” specifically a lot about weld flaws, about loading “ignition events”because they hadn’t considered the impacts of zinc and boric acid:

On May 28, 1996, a hydrogen gas ignition occurred during the welding of the shield lid on a ventilated storage cask (VSC-24) multi-assembly sealed basket (MSB).  The gas ignition displaced the shield lid (weighing about 2898 kilograms [6390 pounds]), leaving it in place but tipped at a slight angle, with one edge about 7.6 centimeters [3 inches] higher than normal.

The loaded VSC-24 multi-assembly transfer cask (MTC), a shielded lifting device used to transfer the MSB loaded with spent fuel to the ventilated concrete cask, had been placed in the cask decontamination work area in the auxiliary building.  Approximately 114 liters [30 gallons] of borated spent fuel pool water had been drained from the MSB to facilitate welding of the shield lid, creating an air space below the lid.  The hydrogen gas ignition occurred during the initiation of the shield lid welding, approximately 11 hours after the loaded MTC had been removed from the spent fuel storage pool.

And then there’s the inability to unload a cask once it’s been loaded and used for storage for a while.  for a Three Stooges HILARIOUS (if the truth wasn’t so scary) report on trying to unload a cask, “oops, an assembly is warped, oops, got stuck pulling out, oops, what to do, oops, let’s just ram it back in and put the cover on” at INEL:

INEL Report – Failed attempt to unload TN-24P

The possibility of revival of the notion of storing nuclear waste in the Minnesota granite, and granite anywhere, is more than I want to think about.

Here’s a fun video with some shots that Northern States Power showed us back in the NSP sponsored “Task Force” prior to their application(we’re talking late 1994-early 1995 here), to show us how safe casks are:

Homer, you work at a nuclear plant – what do you think?

Remember the flooding info and maps I’d posted a couple of days ago, noting that two nuclear plants in Nebraska were in the flood inundation area?

Low-level emergency declared at nuclear power plant

Well, Frieda Berryhill sent this photo of the flooding at the Ft. Calhoun nuclear plant:

Check the video, Omaha Public Power District – OPPD didn’t want the news crew filming the flooding!!!  And thankfully, they reported that point:

Flooding nuclear power station property

As if the flooding isn’t enough, they had an electrical fire, and shut down the spent fuel pond pumps to aid in fighting it.  There are many articles posted on this, all the IDENTICAL AP article, and not one mention of flooding:

Nuke plant stopped spent fuel pumps to fight fire

Here’s a local paper with some additional details:

Smoke causes scare at nuclear plant

Omaha Public Power District’s release on the flood:

OPPD Declares Notification of Unusual Event

June 6, 2011

As mentioned last week, the rising Missouri River waters have reached a level where OPPD is declaring a Notification of Unusual Event (NOUE) at its Fort Calhoun Nuclear Station. According to projections from the U.S. Army Corps of Engineers, the river level at the plant site is expected to reach 1,004 feet above mean sea level later this week, and is expected to remain above that level for more than one month. OPPD notified the Nuclear Regulatory Commission and emergency management agencies in Nebraska and Iowa of the declaration.

A NOUE is the least-serious of four emergency classifications that are standard in the U.S. nuclear industry. Fort Calhoun Nuclear Station will not move out of this emergency classification until it is confident the water will remain below the 1,004-foot level.

The Nuclear Regulatory Commission notes that a Notification of Unusual Event indicates events are in process or have occurred which indicate potential impacts to the plant. No release of radioactive material requiring offsite response or monitoring has occurred or is expected.

Fort Calhoun was in safe shutdown mode since early April for refueling the plant, and remains in that condition. In addition to the existing flood-protection at the plant, OPPD employees and contractors have built earth berms and sandbagged around the switchyards and additional buildings on site. They also are filling water-filled berms around the plant and other major buildings on site, have staged additional diesel fuel inside the Protected Area and are building additional overhead power lines to provide another option for power for the plant’s administration building, Training Center and one of its warehouses.

Here’s a flyover that says it all…

Fukushima: ‘much bigger than Chernobyl:’ expert

Although I’d argue that it’s certainly a lot worse than that:
Fukushima is now the radioactive Deepwater Horizon of the Pacific

The nuclear mess in Japan is just slowly getting worse, with radiation leaking out at higher levels, more radioactive water from the plant leaking out, nowhere to store what they are able to pump out, and efforts to pump water in aren’t sufficient to provide cooling.  The good news is that they are finally openly admitting that the plants will have to be “scrapped.”

Here are some updates from around the world:

Japan may have lost race to save nuclear reactor

Japan nuclear crisis: evacuees turned away from shelters

Link to photos from plant

Japan to scrap stricken nuclear reactors

Here’s a view of our own Monticello reactor, the same GE as some of the Fukushima plants:

For some technical info and photos of this type of GE reactor, check this “Virtual Nuclear Tourist” site, put together by Joseph Gunyeau (here’s some background on him) who I think is based in nearby Cannon Falls, he has been a contractor at many nuclear plants — and he says that a Fukushima page is in the works:

Monticello Page from Virtual Nuclear Tourist