Greenstreet into its groove

A community gathering in the Greenstreet Hall to talk about the Ashburton River, hosted by Greenstreet Catchment Group.

Across Mid Canterbury, catchment groups are getting on with the job of improving their natural environment, building resilience and strengthening community connections. One group in particular – the Greenstreet Catchment Group – has found its groove over the past year, demonstrating what is possible when local leadership is backed by consistent support from Ministry for the Environment (MfE) and Mid Canterbury Catchment Collective (MCCC) funding.

Since forming, the Greenstreet Catchment Group has evolved from a motivated committee into a confident, well-organised community network. With the help of facilitator Harry Millar from Rural Consulting, the group has been able to begin developing ideas into action and ensure local voices are heard in regional decision-making.

A key focus over the past 12 months has been water quality and river management. Through a series of well-attended community meetings, local landholders have gained a clearer understanding of flood resilience planning, stopbank maintenance and long-term river works. These discussions have not always been simple, but having a catchment group in place has allowed concerns to be raised constructively and technical information to be translated into plain language that the wider community can engage with.

Water quality drop-in sessions attracted strong community interest, with over 40 samples brought in for testing and results providing reassurance around nitrate levels in the catchment. Members have also been supported with eDNA sampling to develop a greater understanding of the freshwater ecology in local streams.

More recently, the group has turned its attention to coordinated pest management and riparian planning. With improved funding certainty, the Greenstreet Catchment Group has committed to establishing a community trap library, enabling landholders to borrow live-capture traps as part of a catchment-wide approach to pest control. Plans are also underway to undertake a drone survey of waterways and riparian margins, which will inform a long-term riparian management plan, demonstrating the community’s commitment to enhancing the health of surrounding waterbodies.

Communication and transparency have been another important focus. The group is preparing to release its first newsletter to members in the coming weeks. This newsletter will outline what the group has achieved over the past year and what is planned for 2026, including upcoming water sampling opportunities, the rollout of coordinated pest management initiatives, and ongoing updates relating to river protection and flood resilience work in the area. The newsletter is intended to keep members informed, celebrate progress and encourage wider participation across the catchment.

None of this work happens in isolation. Ongoing support from Mid Canterbury Catchment Collectives has been critical in providing facilitation and the steady momentum needed to keep volunteers engaged. This support allows local catchment groups to focus on outcomes rather than administration, while also ensuring strong connections with councils and other stakeholders.

The Greenstreet story reflects a wider picture across Mid Canterbury, where catchment groups are stepping up to lead environmental improvement from the ground up. They are creating spaces for collaboration, building trust between neighbours, and showing that farmer-led, community-driven action can deliver real benefits for environmental and community resilience.

By Harry Millar, facilitator for Greenstreet Catchment group