Category Archives: basement water

17,000 tons of groundwater leaked into #5 and #6 now sprayed around the site

Slightly-radioactive groundwater from the basements of the undamaged #5 and #6 reactors is now being sprayed around the site to evaporate (at about 1 litre per sq metre) after the 17,000 ton storage tanks filled up.  Note that if groundwater … Continue reading

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Damage to #6 intake canal and water in basement from cracks – photos

Under the title Current status of Fukushima Daiichi in photos, TEPCO released a lot of photos of Units 5 and 6. This is spin and unrepresentative of the status of the plant of course, because these units were not operational at … Continue reading

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Typhoon brings 44cm water rise in one building, 10 cm rise in others… not RAINwater, but GROUNDwater??

Water levels in reactor #1 basement rose 44cm after the heavy typhoon rains, but only 10 cm in other buildings.  The story below says that ‘rainwater’ will continue to accumulate even after the rain stops!!??   Until very recently TEPCO … Continue reading

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TEPCO admits 200-500 tons of groundwater is ‘seeping’ into buildings each day

The figures are unclear, but finally there is public recognition that large amounts of underground water are leaking into, and maybe out of various buildings. However, it has emerged that an estimated 200 to 500 cubic meters of underground water … Continue reading

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Areva-Kurion cesium adsorption / decontamination system to be retired, because it is too costly???

TEPCO’s latest report on treatment of highly-radioactive water suggests that the original water decontamination  system designed by Areva and Kurion will be offline for the first half of October then turned off from late October to the end of its forecast … Continue reading

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Water level in #3 reactor basement finally measured.

TEPCO is finally measuring the level of water in the #3 reactor building basement, though its English website does not publish this info AFAIK. Previously only the turbine building basement and trench levels were published, and the levels in reactor … Continue reading

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Do silt sences filter radioactive particles from water ?

probably not… see the new page here

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Tritium and beta sources in groundwater more Bq/l than cesium – TEPCO analysis

On July 11, radiation in groundwater outside the turbine building of Unit 2 contained about 21,000  Bq/l from cesium-134 and -137, 93,000 Bq/l from all beta sources 4,900 Bq/l from Tritium Normally they only measure cesiums and iodine, this data … Continue reading

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Reactor buildings leaking to underground water – government wants $1.2 billion underground dam soon

Despite repeated assurances that TEPCO does not think the flooded buildings are leaking radioactive water to groundwater, the government is considering helping them build a massive underground wall round the site, down to bedrock, says Maininchi report.   Nuclear crisis … Continue reading

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34000 tons of water will be decontaminated in next 3 months – TEPCO

TEPCO added that there is now about 120,000 tons of highly-contaminated water the plant. Although there have been several stoppages of the new US-French-Japanese system since it was due to start on June 15, TEPCO seems confident such teething problems … Continue reading

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