Tag "sub drain"

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Breaking news Cover-ups Fukushima Plant

No work is on-going in Fukushima reactor buildings for “summer vacation”

Photo : Reactor 1 and 2 on 4/10/2011   Currently no decommissioning work is on-going in the crippled reactor buildings of Fukushima plant.   A Fukushima worker Happy11311 posted on

Breaking news Contaminated water crisis Fukushima Plant

Tepco plans to discharge contaminated groundwater around the reactors having bypass and frozen water wall fail

Photo : North of Reactor 1~4 water intake in June 2013   Tepco is planning to discharge groundwater pumped up around the reactor buildings. They are already submitting the sewage

Contaminated water crisis

Tepco sprinkles over 50 m3 of contaminated water in Fukushima plant area everyday / Tepco “It’s not discharge”

Tepco sprinkles contaminated water in the plant area on a daily basis. NRA (Nuclear Regulation Authority) pointed this out on the working group meeting of 3/5/2014.   According to Tepco

Contaminated water crisis Sea contamination

110,000,000 Bq/m3 of Tritium from sub-drain of reactor1

The actual solution of the increasing groundwater is to repair the facility called sub-drain, which is originally installed to control groundwater. (cf, [Column] Kamikaze and contaminated water [URL]) According to

Column Contaminated water crisis Sea contamination

[Column] Kamikaze and contaminated water

  On 8/8/2013, Tepco released a shocking report. Tepco’s planning to “bypass” the groundwater to the sea, which is supposed to be the last hope, but it is anticipated that


56,000 Bq/m3 of Strontium-90 measured from sub-drain of reactor2

According to Tepco, high level of Strontium-90 is still measured in sub-drain of reactor2 and 3. The data of reactor1 is not published for some reason. The sampling date was

Plant hazard

Cs-134:137 ratio of reactor3 sub-drain is 91.3% on 5/20/2013

According to Tepco, Cs-134:137 ratio of reactor3 sub-drain is unusually high. The half-life of Cs-134 is 2 years, the one of Cs-137 is 30.1 years. From the samples of 5/20/2013,

Contaminated water crisis

Radioactivity density in reactor1 sub-drain has been stably high since late Feb 2013

  According to Tepco, the radioactivity density of reactor1 sub-drain increased in the end of February 2013, and it hasn’t been decreasing until 5/14/2013. Usually they pump up the ground

Contaminated water crisis

1,400,000 Bq/m3 of β nuclide detected from reactor1 sub-drain water

According to Tepco, high level of β nuclide is measured from the water of sub-drains. The sub-drain water is assumed to flow into the basement floors of the reactors. The


Radioactivity density of sub-drain in reactor1 remaining in high level

On 3/7/2013, Fukushima Diary reported “Radiation level in sub-drain of reactor1 and 2 picking up [URL]” According to Tepco, the radioactivity density is still staying high. (When you look at