Stable?... it's more like like a house of cards...

Steam seen rising from Fukushima reactor: TEPCO

TOKYO — Vapor has begun rising again from a reactor at the Fukushima nuclear power plant, more than 2 1/2 years after its core melted down, the site’s operator said Friday.

Tokyo Electric Power Co (TEPCO) said it believed the steam was coming from a puddle sitting atop the reactor, but has not been able to clarify why vapor started appearing occasionally from July this year.

TEPCO said the Fukushima Daiichi nuclear plant remained stable, with sensors in and around it showing no increase in levels of radioactive release.

The steam appeared as TEPCO found more evidence that radioactive waste water at the plant was contaminating groundwater that is on its way to the sea.

Thousands of tons of water were poured on the reactors to tame the meltdowns sparked by the March 2011 earthquake and tsunami. TEPCO says their temperature is now stable but they need to be kept cool to prevent them running out of control again.
[link to www.japantoday.com]
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