Personnel at PS 8 and 9 live in nearby communities. Removed from service when pump station placed in standby. PS 5 is a relief station. Full head pump - a two stage pump with both impellers in series. It has one inlet and one outlet.
Half head pump - a two stage pump with both impellers in parallel.
It has two inlets and two outlets. Full head configuration - all other pump stations PS 12 is configured to operate wit heither 2 full head or 1 half head pump. All pump stations have booster pumps to move oil from the storage tanks to the mainline. Topping unit, definition Mini-refinery that produces turbine fuel. Topping units All topping units are in standby.