"If the nuclear waste site were to flood, the concrete and steel barrels that hold the nuclear waste could corrode and threaten the integrity of the canisters. Sitting water has been shown to corrode the steel in nuclear waste containers. In a lab setting, a groundwater-like solution caused corrosion in the kinds of canisters that contain nuclear waste. That’s among the factors that could become a problem if things don’t go as predicted in 2001.
"The Biden administration is following a consent-based plan to find permanent locations for nuclear waste disposal, looking for communities and companies that would be willing to store the waste. But for now, Maine Yankee has to keep an eye on the 60 concrete barrels of radioactivity as the sea keeps rising."