Emergency mail from Tepco to Mass media about reactor 4

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東京電力からのご連絡

Notice from Tepco
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報道関係各位

For massmedia

・本メールは、事前に「深夜・早朝における連絡先」の登録のお申し込みをいただ
いた方にお知らせしています。

This mail is sent to people who registered to the service to receive messages late in the night / early in the morning.

・本日(1月1日)午後5時30分頃、免震重要棟でプラントデータの確認を行って
いた当社社員が4号機使用済燃料プールのスキマサージタンク(※)の水位が比
較的早い速度で低下していることを確認しました。

17:30 1/1/2012
Tepco employee found the water level was decreasing faster than usual in the tank to keep the overflowed water from spent fuel pool of reactor 4.

・スキマサージタンクの水位については、自然蒸発などにより低下しますが、これ
までの運転実績において、3時間で50mm程度(1時間あたり約17mm)の低下
であったものが、本日午後2時~午後5時までの3時間で約240mm程度(1時間
あたり約80mm程度)の低下が確認されました。

The water level is decreased naturally because of water evaporation, as it used to take 3 hours to be decreased by 50 mm (17mm/h), but from 2PM to 5PM today it was decreased by 240 mm within 3 hours.(80 mm/h).

・現在、漏えいを想定した現場確認を行っているところでありますが、4号機の使
用済燃料プール循環冷却システムが設置されている廃棄物処理建屋1階ならびに
原子炉建屋外廻りにおいて漏えいは確認されておりません。原子炉建屋内の配管
の接続部の健全性確認など、現場調査を引き続き行い、原因調査を行ってまいり
ます。

Now we still have not found the leakage point but there is no water leakage found in radioactive waste processing building and outside of the buildings where the water cooling system is located. We are going to detect the leakage point.

・本日午後5時現在の使用済燃料プール水の温度は23℃であり、現在も同プールの
冷却を継続しており、使用済燃料プール自体の水位に変動はありません。今後、
準備が整い次第、スキマサージタンクの水張りを実施し、水位を監視してまいり
ます。

At 5PM on 1/1/2012 the temperature of spent fuel pool is 23℃ and the water cooling system is functioning. There is no change in the water level of the spent fuel pool. Soon as we are prepared, we will put additional water to the tank and keep watching.

・本メールには返信できませんのでご了承ください。

You can’t reply to this email.

以 上

(Source)

About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.

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