Isn't the Ogallala primarily "old" water, with a very very low recharge rate, and in many placed overlaid with mostly-impermeable materials?

I've been working on critical aquifer area protection legislation here, and one thing that comes to mind is that geology really does matter, all aquifers are not the same, and the recharge rate varies significantly depending both on input and the ability of the ground layers to alllow water to move through.

While I haven't looked at this pipeline in particular, are they routing it over particularly sensitive areas, or is the claim that areas of South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas that are atop the Ogallala shouldn't have pipelines?