Continuous sediment monitoring sites were set up in the lower reaches of the three main tributaries of Te Awarua-o-Porirua Harbour (Porirua Harbour) in 2012/13. The purpose was to quantify the annual and event-based sediment loads to Porirua Harbour, recognising that excessive sediment deposition in the harbour is one of the key issues for estuarine health. This report summarises monitoring results for the period July 2023 to June 2024. An interactive version can be accessed from the water monitoring page.

Reference: Greater Wellington (GW). 2024. Te Awarua-o-Porirua Harbour catchment sediment monitoring 2023/2024.