The steam exiting the low pressure turbine must be condensed back to a liquid form before it can be used again in the BWR planet for steam generation. To accomplish this the steam is sent into a huge condenser unit at 100 psia, quality of 95%, and a mass flow rate of 19e6 lbm/hr. Water from a nearby river is pumped through the condenser to allow the steam within the condenser's pipe work to condense back into a saturated liquid. Environmental regulations state that the river water is allowed to experience a maximum of 8 °F rise in the temperature of the river water to prevent harm to the local wildlife by excessive thermal pollution. If the steam is condensed to a saturated liquid at the exit of the condenser which is maintained at 100 psia, what is the required mass flow rate in gal/s of river water that is required to condense the steam?