Category Archives: groundwater

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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Unit 3 is built on a layer of permeable rock that extends to sea

As shown in this diagram, the Reactor and Turbine Buildings of Unit 3 appear to be build in a layer of permeable rock that extends under the seabed of the intake canal. From the diagram, it is hard to tell … Continue reading

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70-fold rise in sea-water radioactivity in last week near Unit 3

Radioactivity in the sea off Unit #3 went up by a factor of at least 70 times between August 28 and September 5, to the highest level for two months, but it does not seem directly related to the typhoon. … Continue reading

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Underground water barrier to be built in 2 years – 800 metres long

The 800 metre wall just off the intake canals has been the obvious way to limit water leaking to the ocean, but it is a bit late., and very slow.   I called a contactor in Queensland who said they … Continue reading

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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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No immediate risk of water leaking to ground or sea

The utility says the levels of the remaining contaminated water at the 2 reactors remain almost unchanged and that there is no immediate risk that the radioactive water will leak into the ground or the sea. TEPCO says it is … Continue reading

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Groundwater seriously contaminated – ‘possibility’ that radiation is still leaking to the sea says TEPCO

Hidehiko Nishiyama, a spokesman for the Nuclear and Industrial Safety Agency, acknowledged there is a possibility that radiation is continuing to leak into the sea, adding, ”We must check that (possibility) well.” Published on Thursday, March 31, 2011 by Kyodo … Continue reading

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