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A summary of potential threats to water quality in the Murray–Darling Basin's waterways.

Some of our 2023 graduate program cohort found surprises on a recent tour of the Sunraysia region’s salt interception schemes.

Basin in Brief provides a monthly summary of climate, rainfall, inflows and water quality information. This page was updated 13 April 2023.

The River Murray Water Quality Monitoring Program has captured physical and chemical data from 28 River Murray and tributary sites since 1978. This report examines long-term trends in water quality and drivers of change.

The most common cause of mass fish deaths is low levels of oxygen in the water. But fish deaths can also happen for other reasons, sometimes we don’t know why.

Blue-green algae occur naturally in rivers, lakes and dams. Under certain conditions, blue-green algae multiply quickly, creating an ‘algal bloom’ that can decrease water quality.

Water quality issues have increased as flood waters bring nutrient loads into rivers.

Flows in the River Murray system vary widely depending on a range of factors, including rainfall, inflows, evaporation and demand for water. We summarise this information each month in the below reports. This page is an archive of reports for previous months.

The Australian Government is working with the New South Wales and Queensland governments to implement a suite of water management tools – the Northern Basin Toolkit.

Water delivery shortfalls are rare but occur when available water cannot be delivered to users when they want it. For example, it could happen because demand exceeds the physical capacity of rivers and channels to carry the water, or when demands for water unexpectedly spike and there's not enough time to release additional water from dams to meet the demand.