To limit the probability that a fire involving the cargo pump will spread to adjacent buildings or structures, which could lead to harm to persons in the adjacent building or facility.
To limit the probability that leakage from the pump operations will spread liquid to an adjacent property, which could lead to the ignition of vapour from a nearby ignition source, which could lead to harm to persons in the adjacent building or facility.
To limit the probability that an ignition source from an adjacent property will ignite vapour from the pump, which could lead to harm to persons in the building.