When the iconic domes of San Onofre’s nuclear reactors are finally demolished, “significant amounts of foundation, footings, and other existing material” are expected to remain, unseen, beneath the bluff on the ocean — at least until its stranded nuclear waste finds another home.

In October, the California Coastal Commission will consider Southern California Edison’s application to remove large portions of the above- and below-grade elements of the silent twin reactors, along with associated infrastructure, and cover what’s left with backfill.

That above-ground demolition work is scheduled to be completed within the next decade — but Edison wants to leave the below-ground structures in place until the waste is finally moved.