Waste Water

The Waste Water Treatment Plant (WWTP) is managed through the Department of Public Works although it is a self-sustaining city owned utility which operates under the regulations of the State of Wisconsin, Department of Natural Resources.

Department employees are assigned to the WWTP with the make up being that of one "A" Licensed Operator In-Charge and the remainder are "B" Licensed Operators. This staff of highly trained professionals is responsible for all facets of the Waste Water Treatment Utility including the collection, treatment and plant operations systems of the system.

Reporting Problems

In the event that you have a problem with sewage backup please call the following:

  • Monday through Friday (Excluding Holidays) from 7 a.m. to 3:30 p.m. call 920-623-5915
  • All other times day or night call 920-623-5908


The City of Columbus Wastewater Utility is responsible for sewer main and the direct connection of laterals from structures throughout the city. The "direct connection' is defined as the coupling resulting in the connection of a privately owned sewer lateral to the city sewer main. Sewer lateral maintenance and repair is the responsibility of the property owner. Click here for engineering details.

In the event of a backup please call the numbers listed above and the staff will respond to access the problem.