Darwin Harbour report card 2018

Zone 1: Elizabeth River estuary

The 2018 report card overview

Water quality in the Elizabeth River estuary was excellent.

About Elizabeth River estuary

The Elizabeth River estuary contains seagrass beds that provide feeding grounds for dugong and turtles.

Large parts of the estuary are still lined with mangroves but industrial development along the foreshore has reduced mangrove cover in recent years.

The estuary receives urban stormwater runoff from the city of Palmerston during the wet season and dispersed discharge from the Palmerston wastewater treatment plant that enters the harbour in Myrmidon Creek.

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Long-term trend

Data summary

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.

Supplementary parameters