Category Archives: regulator failure

Measure hydrogen in containment vessels, TEPCO is told

Efforts shall be made to measure the hydrogen concentration in the PCV of Units 1-3, NISA told TEPCO on Sept 25.   After three hydrogen explosions, it seems hard to believe that TEPCO has not measured this before.     Advertisements

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Kan- Fukushima “a man made disaster”, no “well-thought out preparations”

He also expressed frustration that TEPCO did not follow his instructions or keep him informed,  “Even as I sought an explanation for this situation, I couldn’t tell whose decisions I was being given. It was like a game of Chinese … Continue reading

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Regulator slams TEPCO for not telling them about large tsunami possibilities

Gov’t nuclear watchdog criticizes TEPCO for delayed release of tsunami estimate A government nuclear watchdog has criticized the Tokyo Electric Power Co. (TEPCO) for not releasing an estimate it put together years ago that a tsunami over 10 meters high … Continue reading

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Govt did not release radiation plume maps, residents did not evacuate danger areas

NYT reports anger among nearby residents that SPEEDI modelling data in the early days was not released by the government – without this information many people stayed in some of the most dangerously contaminated areas.     The Mayor of … Continue reading

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Govt to ban shipment of Miyagi beef cattle, buy beef that already marketed

Fukushima province also banned shipment of cattle a few days ago.   The government will aslo buy back meat that has already reached the market and invoice TEPCO sometime later. Nearly 3000 cattle have been sent to the market after … Continue reading

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Regulators decided long power-loss did not need to be considered for reactor safety plans

Gov’t nuclear panel noted but downplayed risk of power loss at plants TOKYO (Kyodo) — Experts in a government commission overseeing the safety of nuclear power generation noted in the early 1990s the possibility of fatal damage to nuclear power … Continue reading

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"It is inconceivable that a severe accident could actually occur" – origin of the safety myth

“If we even mentioned there was a slight possibility that nuclear plants were dangerous, antinuclear advocates pushed for shutting every plant down,” he said. “So, we just kept on declaring the plants were safe.”       – former actich … Continue reading

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TEPCO warned for allowing work without dosimeters – eg the three exposed in basement puddles

The regulator has warned TEOCO to get more dosimenters after three workers were badly exposed and two suffered foot burns on April 24.  They had no dosimeter, and no colleague was present who had a dosimeter.   TEPCO says many … Continue reading

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TEPCO predicted 10% chance of tsunami flooding plant in its lifetime – 2007 study

A TEPCO senior safety manager presented a paper to a nuclear engineering conference in 2007 saying there was about a 10% chance that in 50 years of a tsunami bigger than the 5.7 metre design specification of Fukushima Daiichi.   … Continue reading

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