Zone 7: Shoal Bay

Water quality in Shoal Bay was very good.

All indicators complied with Water Quality Objectives.

About Shoal Bay

Shoal Bay is a shallow embayment with a number of sandbars along the coastal fringe and entrance to tidal creeks.

Shoal Bay receives sediment and nutrient loads from the Howard River catchment during the wet season.

A number of smaller mangrove-lined tidal creeks flow to Shoal Bay, these include King, Micket and Buffalo Creeks.

The Leanyer-Sanderson Wastewater Treatment Plant discharges to Buffalo Creek which flows into Shoal Bay.

Long term trend

Zone 1 - Elizabeth River estuary 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.

Indicator Plot(s)
Algae (Chlorophyll-a)
Dissolved oxygen
Nutrients (nitrogen and phosphorus)
Water clarity (turbidity)

Supplementary parameters


Last updated: 14 September 2022

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