World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in New Zealand

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317 inventory records · HydroWASTE v1.0 / New Zealand

Data years: 2019. The inventory date does not establish current operation.

317 results

CompareNameNative sizeYear
MoanaHW:5281472 population served2019
Te Kowhai WWTPHW:5295159 population served2019
RangatauaHW:5289757 population served2019
FernsideHW:5292657 population served2019
PipirikiHW:5289556 population served2019
CardronaHW:5277152 population served2019
Denehurst Denehurst Drive WaimaukuHW:5299151 population served2019
Burkes PassHW:5278343 population served2019
KawerauHW:5293443 population served2019
Te WaitereHW:5293340 population served2019
Oamaru BayHW:5299432 population served2019
OmauiHW:5271930 population served2019
Arthurs Pass STP Sunshine TceHW:5280925 population served2019
Maramarua WWTPHW:5297322 population served2019
WaiotiraHW:5300818 population served2019
WainuiHW:5278916 population served2019
Bombay Barber RoadHW:5297716 population served2019

Regulatory context

Partial review. This is not an exhaustive review of applicable law.

New Zealand: standards and resource consent

Partial documentary review; human legal review pending. The first national standards took effect on 19 December 2025, with corrections from 17 August 2026. They cover public networks through regional consent conditions. Overflows and bypasses have a deferred timetable. Second-tranche odour and metals proposals are not treated as enacted law.

  • Confirm public-network status, receiving environment, consent and each standard's transition rules.
  • Outside the standards' scope, the Resource Management Act consenting regime still needs review.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.