I think this case yet worth knowing because it poses serious problems for the future.
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In summary, because you will find the rest of the info on the net (a little but not that much):
Bilibino is a Russian village located in the extreme northeast of Russia (beyond the polar circle since at 68 ° north latitude)
A nuclear power plant has been established there since 1974.
Several worrying phenomena cause this to be the next major nuclear accident.
The plant planned for a lifetime of 30 years should have been dismantled in 2004. It has been extended for 15 years but without major changes or efforts ....
This zone is composed of permafrost (ground never thaw) so the studies of soils in 1974 did not have to be very complicated. The problem is that, with global warming, the soil gets more and more freezing causing unexpected ground movements.
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The subject is studied Russian side but classified therefore zero info !!
We know that they try to inject different products into the soil around the plant, especially products that remain solid at higher temperatures than water, I presume.
2eme problem, the dam that serves as a reserve for the cooling of the power plant is located stack above the power plant.
It is also affected by thawing the ground and may become unstable under the pressure of the reservoir water, which could cause a major flooding of the plant.
Moreover, the photos of the plant show that obviously, little equipment update (especially at the control-command level) have been done since 1974. It's my job and even in our old production plants, there are not many control rooms that look like that.
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