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The Huffington Post reports that the largest
leak at Fukushima Reactor station in the last year was noted.

The operator of Japan's Fukushima nuclear plant said on Thursday that 100 tonnes of highly contaminated water had leaked out of a tank, the worst incident since last August, when a series of radioactive water leaks sparked international alarm.

Tokyo Electric Power Co told reporters the latest leak was unlikely to have reached the ocean. But news of the leak at the site, devastated by a 2011 earthquake and tsunami, further undercut public trust in a utility rocked by a string of mishaps and disclosure issues.

Tepco says it was 100 tonnes, it was 230 Million Bq/Liter and it didn't reach the ocean.

What do we really know?

More after the jump

When Tepco says it was 100 Tonnes, it most likely means it was some large unit slip,
so, it could have been 100 Tonnes per day, or 100 Tonnes of nuclides, or it was
100,000 tonnes,  Tepco has too often been caught fudging the numbers to be taken
at face value.

Tepco says it was 230 M BQ/Liter.  Maybe that's true, maybe it's much worse.
After Tepco got caught under reporting radiation levels last month, and have been
under reporting for 3 years, they have zero credibility.

Tepco says the water never reached the ocean.  Well more like "The leak we detected that day, didn't reach the ocean yet".  

Now I know some "Deniers" will say "Tepco Has never underreported anything", so
lets just start with one little link

http://enenews.com/...

Japan Times  Feb. 11, 2014: Tepco hid record-level radiation data last July — [Tepco] did not tell the public until recently that massively high levels of radiation were found in groundwater collected last July at the Fukushima No. 1 nuclear plant, even though the utility was aware of the data that month, according to sources. [...] When Tepco reported the data to the Nuclear Regulation Authority last week, it initially claimed that it had only recently compiled the data, NRA sources said. However, the embattled utility later corrected the timing, apparently showing that it had withheld the record readings, the sources said. [...] The withholding of the radiation data looks to be the latest in a long line of missteps for the utility, experts said. [...] Tepco concluded at the time that the data were inaccurate, citing the huge difference in the two measurements, despite knowing that its method of measuring beta ray-emitting materials could show lower-than-actual levels, the sources said. [...] the utility has repeatedly changed its explanations [...]
and
Yomiuri Shinbun translated by EXSKF, Feb. 7, 2014: [...] 5 million Bq/Liter of radioactive strontium was detected from the groundwater sample taken on June 5 [...] about 1,000 times that of the highest density in the groundwater that had been measured so far (5,100 Bq/L). TEPCO didn’t disclose the result of measurement of strontium [...] On February 6, TEPCO explained that they had “underestimated all of the results of high-density all-beta, which [in fact] exceeded the upper limit of measurement.” [...] The company recently switched to a different method of analysis that uses diluted samples [...]
So i thought I would write up this little bit.

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