This site is located within Ohiwa Harbour to the north of Hokianga island. This site has been monitored since 1991 and is sampled once per year for mud content, heavy metals, organic nutrients and sedimentation rate. This site has firm sandy sediments with some shell hash.
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: