Two million people drink water from the Waikato. Thousands swim in it, fish from it and gather mahinga kai (traditional food gathering) along its length. Iwi have obligations to it that stretch across generations.

The science is telling us, in real-time sensor data, that the system is moving toward thresholds we do not want to cross. The monitoring and governance architecture we have inherited was not designed for the compound pressures now acting on the river.

The question is whether we can build the governance and data-led operational protocols to match the pace of change, before the next bloom or near miss becomes the event we failed to prevent