The WIPP (waste isolation pilot plant)

The objective is to dispose the waste by putting it underground.

A geological layer (couche) of salt should encroach the waste.

There are keep-out signs around the site for people to understand that it's a dangerous place. But everybody doesn't have the same understanding of symbol so this os tricky (difficile). WIPP manage just the US intermediate-level-waste. In France, they want to burry (enterrer) its waste too, in Bures (Aube).