Motueka Wastewater Treatment Plant

This page provides an overview of the project to upgrade the Motueka Wastewater Treatment Plant.


Work is now complete on this upgrade.

How the Upgraded Plant Works


Previous System

In the past, solids carried over the Motueka WWTP had progressively clogged the soil beneath the soakage beds and wetlands to the point that there was little if any soakage occurring. Since 2011 the treated wastewater had been largely discharged via overflow from the wetland into the south channel of the Motueka River.

Accordingly, the Motueka Wastewater Working Party (Working Party) investigated options to upgrade the WWTP to avoid, remedy and mitigate environmental effects associated with the current discharge. The Working Party includes local Councillors and members of the Motueka Community Board along with representatives from Fish & Game, the Nelson Marlborough District Health Board, the Department of Conservation and Wakatu Incorporation.