Tag "retained water"

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Contaminated water crisis

Tepco found 2 “pinholes” on multiple nuclide removing system ALPS

On 6/15/2013, Tepco reported about the “possible” leakage from the multiple nuclide removing system ALPS. They measured 6,700,000,000 Bq/m3 of all β from the “possible” leaking water. (cf, Multiple nuclide

Contaminated water crisis

Radiation level increasing in leakage detector hole of “nearly empty” reservoir No.1

On 6/10/2013, Fukushima Diary reported “Tepco completed transferring contaminated water but still all β nuclide detected outside of the reservoirs [URL]” The radiation level (all β) of one of the

Contaminated water crisis

Tepco completed transferring contaminated water but still all β nuclide detected outside of the reservoirs

About the major leakage of highly contaminated water, they completed transferring 24,000 tones of all the water from the leaking reservoirs to spare tank by 6/9/2013 according to Tepco. However,

Contaminated water crisis

Tepco still transferring contaminated water to the spare tank even after the leakage of 6/5/2013

On 6/5/2013, Fukushima Diary reported “Spare tank for leaking reservoirs started leaking too, Tepco didn’t weld it [URL]” According to Tepco, they are still transferring contaminated water to the G6

Contaminated water crisis

Spare tank for leaking reservoirs started leaking too, Tepco didn’t weld it

Exactly as Fukushima Diary warned, the un-welded spare tank called G6 leaked highly contaminated water while accepting contaminated water from the 2 leaking reservoirs. They measured 12 mSv/h of β

Contaminated water crisis

Tepco mis-measured radiation, 610 Bq/m3 of Cs-134/137 detected from bypass well water in the second test

According to Tepco, 610 Bq/m3 of Cs-134/137 was measured from bypass well water. The sampling date was 4/16/2013. Tepco was planning to discharge the water to the sea. In the

Contaminated water crisis

Tepco considers using aquifer in great deep for contaminated water storage

On 5/30/2013, the committee of experts suggested Tepco an idea of using the aquifer of great deep for increasing contaminated water storage. 400 tones of ground water flows into the

Contaminated water crisis

[Spare contaminated water] 20,000m3 of highly contaminated water still retained in seawater trenches,”4.2 tera Bq/m3″

According to Tepco, there is still 15,000 ~ 20,000 m3 of extremely highly contaminated water still retained in the seawater trenches. The trenches are located in the seaside of reactor2

Contaminated water crisis Core removing struggle

Tepco considers to fill Torus room with grout to stop ground water flowing in

On 5/30/2013, Fukushima Diary reported “Tepco to consider freezing ground for 1400m to stop ground water flowing into the plant [URL]” Additionally, the committee of experts suggested Tepco to fill

Contaminated water crisis

Tepco to consider freezing ground for 1400m to stop ground water flowing into the plant

On 5/30/2013, the committee of experts suggested Tepco to stop ground water flowing into the plant by freezing the ground. This is the technology to install freezing ducts underground to