To supply water or electricity to the victims until the recovery of a supply system therefor in case of the occurrence of an interruption due to a disaster.

A reservoir 3 having a pump room 12 as integral part thereof is laid on the top of an aseismatic structure formed out of a front room 4 freely accessible from an entrance 6, and a machine room 5 equipped with a power generation facility 8 and an oil tank 9. Furthermore, a disinfection device to sterilize water contained in the reservoir 3 is installed in the pump room 12.