Restoration Efforts Underway at Moa Point as Tiaki Wai Works to Secure South Coast Infrastructure

Officials from Tiaki Wai and the Wellington City Council met with South Coast residents on Sunday, 13 September 2026, to provide updates on the restoration of the Moa Point Wastewater Treatment Plant. The community meeting, held at the Lyall Bay Surf Lifesaving Club, focused on the findings of an independent Crown Review and the technical work being undertaken to prevent future infrastructure failures. Following a catastrophic flooding event on 4 February 2026, the plant’s critical infrastructure was severely damaged, leading to untreated wastewater discharges. Tiaki Wai, the newly established regional water organisation that took over ownership and maintenance on 1 July 2026, confirmed that restoration work is currently on track. The plant is expected to begin processing wastewater again in November, with a return to full operation projected by February 2027. To ensure the long-term health of the takutai moana (coastal marine area), engineers are implementing new safety controls. These include automated inlet pump locks that trigger when flooding risks are detected and the resolution of hydraulic issues within the bypass pipeline. The Crown Review identified that the February failure was due to systemic weaknesses in governance and asset stewardship rather than a single decision, prompting Tiaki Wai to overhaul its IT systems and risk management processes. For mana whenua and the local community, the restoration is vital for protecting environmental health and cultural connections to the moana. While water quality testing for enterococci continues at Tarakena Bay, Tiaki Wai is committed to transparency through fortnightly updates. A follow-up community meeting is scheduled for 29 September 2026 at the Maranui Surf Lifesaving Club to ensure residents remain informed as the region works to build a more resilient infrastructure system.