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Tepco Drains 1,130 Tons of Rainwater at Fukushima After Typhoon

Tokyo Electric Power Co. (9501) revised down the amount of rainwater it drained into the soil and Pacific Ocean at the wrecked Fukushima Dai-Ichi nuclear power plant after a typhoon lashed the area.

The utility siphoned off about 1,130 tons of rainwater from behind concrete barriers in front of seven areas with storage tanks holding radioactive water, it said in a statement. That’s 100 tons less than earlier estimated. Radiation levels were within the safety standard of 30 becquerels a liter, spokesman Masayuki Ono said at a briefing today.

The rainwater accumulated in the barriers as a result of Typhoon Man-Yi passing over the site. The plant escaped any major damage from the typhoon, Ono said.

Levels of radiation in the drained water ranged from 3 becquerels per liter to 24 becquerels per liter, the Tokyo-based utility said in a statement today.

Hundreds of thousands of people were advised or ordered to evacuate in Japan as Typhoon Man-Yi brought flooding, power blackouts and flight cancellations to the western and central parts of the country. 

At least one person died, while three were missing and 96 reported injured in 19 prefectures, public broadcaster NHK said yesterday. A landslide in Ritto city, 350 kilometers (217 miles) west of Tokyo, killed a 71-year-old woman, it said.

Japan is regularly hit by typhoons during the summer months. In 2004, Typhoon Tokage left 95 people dead.

Man-Yi is originally the name of a strait, according to the Hong Kong Observatory, which lists names assigned to storms in the northwest Pacific. 

To contact the reporters on this story: Masumi Suga in Tokyo at msuga@bloomberg.net; Yuji Okada in Tokyo at yokada6@bloomberg.net

To contact the editor responsible for this story: Jason Rogers at jrogers73@bloomberg.net

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