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Record Radiation at Fukushima after Vongfong: First tests since Tuesday’s typhoon show radioactive material continues rising near ocean — Officials: We can’t do anything more to stop this, ‘depth and scope’ of contamination flowing out are unknown. Japan Times, Oct 15, 2014: Radioactivity spikes in No. 1 reactor well water — [Tepco] said there has been a sharp spike in the radioactivity of water samples taken from an observation well built by the sea… located to the east of the damaged No. 2 reactor… The well is positioned close to an underground trench by the sea that is connected to the No. 2 reactor building. Speaking at a press conference on Tuesday, Tepco official Isao Shirai told reporters that the increased radioactivity in the water could be due to higher levels of groundwater caused by recent typhoons mixing with radioactive elements…

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Originally posted by SIGNYM:
MUON detection of reactor No 1 showed what many said all along:

The reactor fuel melted out of the reactor vessel completely.


Nothing left. This is consistent with Three Mile Island, where even a relatively brief loss of coolant caused half of the fuel to melt. Compared to Fukushima, where the emergency lasted for days, there should be no expectation that any fuel would stay in the reactor. As to where it IS, they don't know that (yet) or aren't admitting.

Meanwhile, reports of detection and release of radioactive material sound the same: They just keep hitting new record levels. May as well just put out standard report every month "New record levels found" and leave it at that. The "ice wall" failed, and all of the treatment machinery failed over time, so as far as I know there is NO control of any of the radionuclide releases.

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Originally posted by JEWELSTAITEFAN:
They were thinking that they should place all of their emergency backup generators and pumps for cooldown and containment below the ocean levels which occur during inclement weather.

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A radioactive isotope linked to water from power plant cooling canals has been found in high levels in Biscayne Bay, confirming suspicions that Turkey Point’s aging canals are leaking into the nearby national park.

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Two years after sacrificing one robot, TEPCO officials have aborted their latest robot mission inside the Fukushima reactor after the 'scorpion' became unresponsive as it investigated the previously discovered hole where the core is believed to have melted. http://www.zerohedge.com/news/2017-02-19/fukushima-aborts-latest-robot
-mission-inside-reactor-radiation-unimaginable-levels

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At 530 sieverts, a person could die from even brief exposure, highlighting the difficulties ahead as the government and Tepco grope their way toward dismantling all three reactors crippled by the March 2011 disaster.

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Originally posted by 1kiki:Like that's going to happen. It's been over 30 years since Chernobyl, and has that been cleaned up?

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Fukushima: robot images show massive deposits thought to be melted nuclear fuel

Images captured by an underwater robot on Saturday showed massive deposits believed to be melted nuclear fuel covering the floor of a damaged reactor at Japan’s destroyed Fukushima nuclear plant.

The robot found large amounts of solidified lava-like rocks and lumps in layers as thick as 1m on the bottom inside a main structure called the pedestal that sits underneath the core inside the primary containment vessel of Fukushima’s Unit 3 reactor, said the plant’s operator, Tokyo Electric Power Co.

On Friday, the robot spotted suspected debris of melted fuel for the first time since the 2011 earthquake and tsunami caused multiple meltdowns and destroyed the plant. The three-day investigation of Unit 3 ended on Saturday.

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Locating and analysing the fuel debris and damage in each of the plant’s three wrecked reactors is crucial for decommissioning the plant. The search for melted fuel in the two other reactors has so far been unsuccessful because of damage and extremely high radiation levels.

Inside the pedestal of reactor No. 3 at Fukushima Dai-ichi nuclear power plant in Japan. The operator is using an underwater robot to inspect damage suffered in a tsunami-induced meltdown.

During this week’s probe, cameras mounted on the robot showed extensive damage caused by the core meltdown, with fuel debris mixed with broken reactor parts, suggesting the difficult challenges ahead in the decades-long decommissioning of the plant.



TEPCO spokesman Takahiro Kimoto said it would take time to analyse the debris in the images to figure out removal methods.

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