Sewer System

A vast, sprawling network of gravity sewage pipes, 84 pumping stations, and 1,600 flush tanks under the city continuously convey wastewater to the Christchurch Wastewater Treatment Plant for processing.

Find out more about:

• How wastewater gets to the treatment plant
• Sewer system maintenance
• Sewer facts and figures

• Banks Peninsula Sewer System (formerly the Banks Peninsula District Council)