About water quality

Water quality determines the condition or health of waterways, such as our rivers, wetlands and coastal waters.

A view of the Gingham Waterhole

Our water resources are of major environmental, social, health and economic value. The quality of these resources is closely linked to the surrounding environment and land use.

Water quality often declines as rivers flow through regions where land and water use are intense and pollution from agriculture, large towns and cities, industry and recreation areas increases.

Poor water quality has a negative impact on public health, the health of our ecosystems, recreational activities, farming, cultural and spiritual needs, and other activities.

Monitor, measure and protect

The Office of Environment and Heritage plays a lead role in protecting water quality in New South Wales.

We develop best-practice approaches to monitoring water quality and conducting health assessments of waterways. These approaches support councils and other water managers to manage potential impacts on waterways.

Health assessments of waterways:
  • evaluate the quality of water
  • monitor changes in water quality
  • determine whether water is suitable for the health of the natural environment
  • determine whether water is suitable for human consumption and other uses such as irrigation, fishing or swimming.

We also provide data and assessment tools to support the delivery of government initiatives.

Find out more about how we monitor, measure and report water quality.