Zone 5: Middle Harbour

Water quality in the Middle Harbour was very good.

Zone 5 - Middle Harbour wheel 2020

About Middle Harbour

The Middle Harbour zone receives urban and industrial stormwater runoff from the city of Darwin and development at Wickham Point.

The harbour’s main shipping channel transverses this zone and it receives dispersed discharge from the Ludmilla wastewater treatment plant at the East Point outfall.

Seagrass beds occur in Fannie Bay, where dugongs can often be seen. A shallow coral reef that is exposed at extreme low tides extends around East Point.

The distribution of the data for all parameters is shown here as box and whisker plots.

For report card grades the median of the data (solid line in the box) is compared to the Water Quality Objective (dotted line) for each parameter.

Zone 5 - Middle Harbour turbidity 2020
Zone 5 - Middle Harbour dissolved Oxygen 2020
Zone 5 - Middle Harbour Chlorophyll-a 2020
Zone 5 - Middle Harbour filterable reactive phosphorus 2020Zone 5 - Middle Harbour ammonia 2020Zone 5 - Middle Harbour NOx 2020

Supplementary parameters

Zone 5 - Middle Harbour salinity 2020 Zone 5 - Middle Harbour temperature 2020 Zone 5 - Middle Harbour pH 2020

Last updated: 12 October 2021

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