Wastewater disposal in a city is an essential public service for the population, local businesses and other facilities. The development of wastewater disposal in Bonn dates back to the 18th century.

The wastewater disposal concept of the City of Bonn was first drawn up in 1985 and was updated for the sixth time on January 1, 2018. It contains all sewer construction and sewage treatment plant renovation measures for the following six years.