Individual entity models

For current information go to: Water Services Policy and Legislation (Updated February 2024)

On this webpage, you will find a slidepack explaining the methodology and assumptions WICS used in its April 2023 analysis of the potential economic benefits - including projected household costs - of water services reform under alternative scenarios including the Government’s preferred ten entity scenario.

Water Services Reform 2054 projected household costs - Assumptions [PDF, 3.8MB]

In addition, WICS prepared individual models for each of the entities under the Government’s preferred ten entity scenario.

WICS’ earlier modelling including the previous four entity reform model can be found here: Individual council models and slidepacks

Proposed entities

Entity	Entity models and slide packs	Council groupings
Entity A	Water Services Reform 2054 projected household costs - Entity A (Auckland and Northland) [XLSX, 605KB]	Auckland Far North Kaipara Whangarei
Entity B	Water Services Reform 2054 projected household costs - Entity B (Waikato) [XLSX, 1.2MB]	Hamilton Hauraki Matamata-Piako Otorohanga South Waikato Taupo Thames-Coromandel Waikato District Waipa District Waitomo District
Entity C	Water Services Reform 2054 projected household costs - Entity C (Bay of Plenty) [XLSX, 1.2MB]	Kawerau Opotiki Rotorua Lakes Tauranga Western Bay of Plenty Whakatane
Entity D	Water Services Reform 2054 projected household costs - Entity D (Taranaki) [XLSX, 1.2MB]	New Plymouth South Taranaki Stratford
Entity E	Water Services Reform 2054 projected household costs - Entity E (Manawatu-Whanganui) [XLSX, 1.2MB]	Horowhenua Manawatū Palmerston North Rangitike Ruapehu Tararua Whanganui
Entity F	Water Services Reform 2054 projected household costs - Entity F (Gisborne and Hawkes Bay) [XLSX, 1.2MB]	Central Hawke's Bay Gisborne Hastings Napier Wairoa
Entity G	Water Services Reform 2054 projected household costs - Entity G (Wellington) [XLSX, 1.2MB]	Carterton Kapiti Coast Lower Hutt Masterton Porirua South Wairarapa Upper Hutt Wellington
Entity H	Water Services Reform 2054 projected household costs - Entity H (Te Tau Ihu) [XLSX, 1.2MB]	Marlborough Nelson Tasman
Entity I	Water Services Reform 2054 projected household costs - Entity I (Canterbury and West Coast) [XLSX, 1.2MB]	Ashburton Buller Christchurch Grey Hurunui Kaikoura Mackenzie Selwyn Timaru Waimakariri Waimate Waitaki Westland
Entity J	Water Services Reform 2054 projected household costs - Entity J (Otago and Southland) [XLSX, 1.2MB]	Central Otago Clutha Dunedin Gore Invercargill Queenstown Lakes Southland