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Suspension of reactor3 gas control system

On 1/29/2013, Tepco stopped the gas control system of reactor3 due to the partial pipe replacement with steel pipe and control panel modification.   http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130128_02-e.pdf     Iori Mochizuki _____

Contaminated water crisis

[Contaminated water storage] 240,000 tones of tank is full, pipe runs for 10km, finding storage place getting harder

Nikkei reported the shortage of contaminated water storage in Fukushima plant, which is going worse.   <Translate> In mid-October of 2011, NIkkei entered Fukushima plant for the first time, when

Contaminated water crisis

Highly contaminated water leaked in reactor3 again, Tepco “It was spouting out of the hose”

On 10/15/2012, highly contaminated water was found “leaking out” from accumulated water transferring pipe of reactor3 again. At the next place, another water leakage was found on 8/14/2012. This water

Contaminated water crisis

11,400,000 Bq/m3 of cesium leaked again, “metal fatigue of a coupler”

  0.2 m3 of contaminated water leaked again. It contained 11,400,000 Bq/Kg of cesium. It leaked from a coupler part made of stainless steel. They found it broken. It is

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Holes on the duct of reactor3. Tepco “fixed it with tape.”

  Following up this article..Fukushima worker “The warranty period of the parts for coolant system is 1 year.” The duct of reactor3 PCV gas control system got 8 holes, Tepco

Contaminated water crisis

12 tones of water leaked to the sea containing beta nuclides

12 tones of highly radioactive water leaked to the sea again. It leaked from the part after desalination unit, but because it can’t filter beta nuclides, Sr-90 and other nuclides

Contaminated water crisis

Emergency mail from Tepco

Around 3:00 AM 2/1/2012, Tepco sent journalists an emergency email. Japanese comedian / nuclear journalist tweeted it. makomelo おしどり♀マコリーヌ 【速報】(東電からのメール)1)○昨日(1月31日)午後10時30分頃、福島第一原子力発電所4号機原子炉建屋1階にあるジェットポンプ計装ラック内の計器テストラインより漏えいしていることを当社社員が発見。(続 Source 【速報】2)○その後、午後10時43分、計装ラックに繋がる元弁を閉めることにより、水の漏えいは停止。○床面は瓦礫が散乱した状態であり、漏れた水の量は確認できた範囲で約6リットル。なお、原子炉建屋外への流出はない。(続 Source 【速報】3)○テストライン内の水を採取し、放射能濃度を測定した結果、漏れた水は原子炉ウェル水と推定。(分析結果:35.5 Bq/cm3)(参考:昨年12月8日に原子炉ウェル水を分析した結果、39 Bq/cm3)(続 Source 【速報】4)○本件について、福島においては本日(2月1日)午前の定例レクで、本店においては午前11時に説明。(以上、東京電力からのメール)(35.5Bq/cm3は35500Bq/Lなので、けっこう濃度高いと思います)Source <Translation> 1/31/2012,

Contaminated water crisis

Tepco has been ignoring the risk of frozen pipes

Following up this article ..Cold weather destroys water cooling system Tepco admitted that their employees suggested covering the pipes or to set heaters near them so as to not let

Contaminated water crisis

30kg of lead shield broke the joint of the pipes

Following up this article ..Another leakage at reactor 4. 100 microSv/h on surface 1/22/2012, Tepco announced it was because of the lead shield covered on the joint. The joint part