As a result , Plant X was located where Broadhurst suggested .
The USGS groundwater program had already determined that there was an unusually large saturated thickness of freshwater in the Ogallala Aquifer beneath the Sand Hills .
Plant X was located where Broadhurst suggested .
The USGS groundwater program had already determined that there was an unusually large saturated thickness of freshwater in the Ogallala Aquifer beneath the Sand Hills .