Featherston Wastewater Treatment Plant
At the Featherston Wastewater Treatment plant, sewage flows through a facultative pond, a maturation pond, and ultraviolet treatment. Discharge of the treated effluent is managed to Donald’s Creek depending on the conditions of the Resource Consents.
The plant was granted new consents on 25 August 2009 with a variation granted on 12 November 2010. These consents expired on 25 August 2012. The plant is currently operating under this expired consent. An application for new consents is on-going.
In general, the consent allows SWDC:
- to discharge treated wastewater to Donald’s creek at up to 9,000 cubic meters per day in dry weather and up to 12,000 cubic meters per day in wet weather.
- to discharge odours and other contaminants from the treatment process within the boundary.
Resource consents
Plant performance
Current Status: Compliant
Period: December 2025
Commentary:
The Resource Consent was granted by Greater Wellington Regional Council on the 8 October 2025.
The upgrade project will be managed by SWDC, with operations still being undertaken by Wellington Water until the transition date.
Items of significance:
With effect 01 July 2025, SWDC took back ownership of the Capital Delivery Programme and associated projects .
Read the December 2025 Featherston wastewater treatment plant performance monthly report