Underground storage of operational electronic equipment

An underground storage system for operational electronic equipment, the system comprising:

• a hermetically sealable container adapted for receiving electronic equipment, the hermetically sealable container being adapted for being buried underground;
• a cable feedthrough disposed in the container, the cable feedthrough maintaining the integrity of the sealed condition of the container while establishing a passageway from an interior of the hermetically sealed container to an exterior environment, the passageway accepting operational electrical cabling from a location exterior to the electronic equipment inside the buried hermetically sealable container;
• a check valve disposed in the container;
• a hollow tube connected to the check valve, the hollow tube extending away from the container;
• a pressure gauge attached to the tube, the pressure gauge displaying gauge pressure inside the hermetically sealable container;
• a pressurization canister attached to the tube, the pressurization canister containing inert gas and being operable to keep the container at a user-specified internal gauge pressure between approximately four and five pounds per square inch.