Flood waters flowing past Superior in the Republican River have long been a problem for the city’s wastewater treatment plant.

While the plant is located out of the flood zone, the effluent is discharged into the river.

When the river level rises above the sewage plant’s discharge line located downstream from the east river bridge, wastewater begins backing up toward the plant. Plant employees have had to keep a close watch on the river level and remove the plant’s ultraviolet treatment system to prevent damage.

While the water has never gotten high enough to stop the flow of wast...