The French are doing this in some sort of limestone. It has the advantage of being impermeable, unlike the Swedish leaky sieve. But the French are doing this right. They aren't just picking some remote armpit-town, where they will just dig a hole. Instead, they put up a big fancy nuclear lab, and now are building the repository beside it. This gives the advantage of bringing in some brains, and lifting the whole area.
This is what we should do here. Set up a big nuclear lab at Wesleyville, dig the underground lab for a few years, keep it clean for world-class research, and then dig the big repository beside it. This is the place for the next linear accelerator for isotopes, or Maple III!