Where does our wastewater go?

Our wastewater systems collect used water from urban homes and businesses, including what is flushed down toilets, and greywater from sinks, showers and washing machines. Some wastewater is also created from industrial activity.

Infographic wastewater

Council Operates

Ashburton
Population: 20,450

9178 sewer connections
4 oxidation ponds at Wilkins Road
Treated wastewater disposal by irrigation at Ocean Farm

Methven
Population: 2,670

1104 sewer connections
2 oxidation ponds
3 infiltration basins

Rakaia
Population: 1,340

606 sewer connections
12 sludge drying beds
Treated wastewater disposal by irrigation