Whenever water is used, wastewater is generated. The city's wastewater disposal system begins at households and businesses throughout the area. It then passes through the sewers. This flow is assisted by a series of lift stations. It eventually reaches the Wastewater Treatment Plant, where it is thoroughly cleaned before it is returned to the North Platte River.
Details of the existing system, along with a series of proposed upgrades, have now been collected into a single document, the Wastewater Collection System Master Plan (2012).