The Hapu
The Hapu
The Hapu
The Trust
Wayby Valley Landfill
To ensure our wider whānau are well informed, this page brings together key information about the Wayby Valley Landfill — what has happened so far, where things currently stand, and what lies ahead.
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If you haven’t already, sign up to our pānui to receive updates on the Wayby Valley kaupapa, including new videos, hui details, and key info as it’s released.
The Kaupapa
The proposal to create a large-scale landfill in Wayby Valley – that sits within the rohe of Ngāti Manuhiri – has been under legal and environmental challenge for several years. Our three entities:
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Te Rūnanga o Ngāti Whātua
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Te Uri o Hau Settlement Trust
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Ngā Maunga Whakahii o Kaipara Development Trust
have worked collectively to oppose the resource consent for the landfill over the past six years.
In May 2025, we made the difficult decision to withdraw opposition from the legal process.
We did not reach this decision lightly. It came after weighing up:
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An independent peer-reviewed report that found the consent could not be declined on the grounds of leachate or environmental risk alone
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The high and ongoing legal costs we would continue to face – especially if we lost
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The limited influence remaining through litigation
Continuing the Kōrero
We will be holding wānanga across the rohe, to give space to continue the kōrero, strengthen our collective approach, and ensure whānau voice guides our next steps.
The first wānanga was held at Te Aroha Pā Marae on Saturday 17 May 2025, please see links to the presentations below. Upcoming hui dates will be shared via the pānui, social media and this website.
Hui Details:
Sunday 20 July 2025
10:00am to 3:00pm
Ōtamatea Marae
Please register here if you’d like to attend, nau mai, haere mai.
Did you miss the Leachate Webinar Q&A?
Don’t worry, you can catch up here.
We’ve broken the webinar into sections so you can jump straight to the parts you’re most interested in.
Click the links below to watch specific parts of the kōrero.
How is Leachate Controlled at the Landfill?
Leachate and Groundwater Monitoring and Consent Conditions
Stormwater System, Ponds & Heavy Weather
Potential Impact Classification (PIC) Assessment
Land Stability/Heavy Rainfall Events
Resources
Video Explainers - Key Topics and Updates
This is where you’ll find short videos breaking down important kaupapa. Each video focuses on a different topic to help make the information easier to understand and share. We’ll keep adding new videos as the mahi progresses, so check back for updates.
The Related Conditions and Management Plans reference document applies to all videos listed below.
It outlines the consent conditions these videos relate to.
Landfill Capping and Aftercare
Greg Carlyon explains how the capping system works and what’s in place to care for the site after it closes.
Bond
Ruby Haazen gives a high-level overview of the Consent Conditions relating to the bond.
Protecting Taonga Values
In this video, Greg Carlyon discusses Consent Conditions and the impact of the landfill on taonga values.
Stormwater and Sedimentation
Learn more about how stormwater, leachate, and sedimentation are intended to be managed at the proposed Wayby Valley landfill. View a high-level overview of the Consent Conditions and Management Plans relating to sedimentation.
Tangata Whenua Executive Committee and Cultural Dashboard
These videos discuss the Tangata Whenua Executive Committee and the Cultural Dashboard — two important tools for tangata whenua oversight of the landfill.
The Committee provides advisory and monitoring support, while the Cultural Dashboard is a digital platform that tracks taonga species, water quality, and other cultural indicators identified by tangata whenua.
Reports
Below are the key reports and presentations that provide more detail on kaupapa including monitoring plans, leachate management, and Consent Conditions.
