Wastewater is a combination of household wastes from the kitchen, toilet, shower and laundry.
It also includes some industrial wastes. This brochure explains how Christchurch's untreated wastewater is collected, dealt with and returned to the environment as treated discharge. It also outlines why and how this process is currently under careful consideration by the City Council and the Christchurch community, giving you an opportunity to have your say when important decisions on wastewater issues are made later in the year. Christchurch is one of the fastest growing cities in New Zealand. By the year 2026 the population is projected to be 423,000, a 32 per cent increase over the next 27 years.