B
Uh-huh.
A
-- and it may have over, uh, a certain emission levels, this is on the solid side, and so we take it and, uh, we can't deep well inject something like that because it's a solid. And we mix it with concrete --
B
Uh-huh.
A
-- and actually, um, potash, per se, and concrete and then actually put it in the ground. But not so, not in a hazardous waste location because it's, basically, a concrete slab.
B
Um.
A
It was totally legal. But the cost of doing this is astronomical,