Description and Current Mission The Waste Isolation Pilot Plant (WIPP) is the nation’s only deep geologic long-lived radioactive waste repository. Located 26 miles southeast of Carlsbad, New Mexico, the WIPP repository is mined within a 2,000-foot-thick bedded-salt formation. The Underground (U/G) is 2,150 feet beneath the ground surface. WIPP was … Continue reading Waste Isolation Pilot Plant