This site is located in Chelsea Bay on the Central Waitematā Harbour northern coastline. The surrounding catchment is urban (mainly residential with some regenerating vegetation) and includes the Chelsea Sugar Refinery.
First monitored in 2004, Chelsea has relatively low metal contamination and good ecological health and is currently monitored every few years for macrofauna, mud content and the metals copper, lead, zinc, arsenic, and mercury.
Monitored site results
This dashboard shows information on the data collected by the regional councils and unitary authorities for the Estuary health scientific indicators, click the tiles for more information: