The Ogallala Aquifer, known as the High Plains Aquifer System, occupies the High Plains of the United States, extending northward from western Texas to South Dakota. The entire system underlies about 174,000 square miles of eight states.
Erosion has removed the deposits between the mountains and the existing western boundary of the Ogallala, so there is no longer water recharge being received from the Rockies.
The Ogallala Aquifer (shaded area) is in a state of overdraft due to overuse. If withdrawals continue, the aquifer could be depleted in only a few decades.
Lack of recharge may doom the Ogallala Aquifer, but that is no reason to fill it with radioactive waste.
I hope this explains my position more clearly. I get fired up sometimes and forget to put the background of an issue in my post.