Transuranic radioactive waste from US nuclear weapon programs is stored in WIPP. The storage rooms at the WIPP are 2,150 feet (660 m) underground in a salt form

Transuranic radioactive waste from US nuclear weapon programs is stored in WIPP. The storage rooms at the WIPP are 2,150 feet (660 m) underground in a salt formation of the Delaware Basin. https://en.wikipedia.org/wiki/Waste_Isolation_Pilot_Plant https://en.wikipedia.org/wiki/Waste_Isolation_Pilot_Plant