Carbon Neutral NZ Trust

The current economic justification for biosecurity—focused on protecting primary production—is a vital foundation, but it is incomplete. As we look at the escalating challenge of invasive species like Caulerpa in the Far North and Northland, we are seeing the limitations of viewing biosecurity and infrastructure in isolation.

The success at Rāwene is not an isolated event. We are informed that significant progress is underway at the Taipā wastewater treatment plant.

May has been a monumental month for water and wastewater infrastructure in the Far North. We have seen a groundbreaking technological success in our communities, alongside major political shifts that will define our district's financial and environmental future for decades. As a trust dedicated to sustainable, affordable, and climate-resilient solutions, we have been working tirelessly on the ground and behind the scenes. Here is a summary of the latest developments and what

On 05/10/2026, the Rāwene EC Wastewater Treatment Plant was officially commissioned. and immediately demonstrated clear effluent during its operation.

Darleen Tana (author of our report Transforming Wastewater Management for Small Communities in the Far North District of NZ was recently interviewed by Dale Husband on Māori Radio to talk about the report and electrocoagulation (EC).

For over four decades, the community of Rāwene in the Hokianga Harbour has fought a quiet, determined battle. The issue: a wastewater treatment plant discharging into waters that are a source of identity, food, and history.

The Carbon Neutral NZ Trust has commissioned a report on the feasibility of transforming wastewater treatment in the Far North.