I remember reading in some forums a while ago that the timeframe is somewhat in the range of 50-100y for recovering most of the waste. Probably they need another sarcophag inbetween ...
This one is designed to last a century, so they do have some time.
Part of the problem is that if they don't do it in time, this sarcophagus is mostly impossible to repair because of all the radioactivity, so they'd need to encase it in a third, even huger one.
Part of the problem is that if they don't do it in time, this sarcophagus is mostly impossible to repair because of all the radioactivity, so they'd need to encase it in a third, even huger one.