Search toggle

Taking a multi-barrier approach

Taking a multi-barrier approach

Multi-barrier diagram

Multi-barrier approach to protect drinking water quality:
Catchment to tap.

Managing water quality begins in the catchment the moment rain falls, right through to consumers turning on their taps.

At each stage of the water collection, storage and delivery process there are opportunities to manage water quality. This is called the multi-barrier approach - where water quality risks can be prevented or reduced at multiple points of the process, not just relying on a single barrier in the supply system.

The diagram on the right shows how WaterNSW carries out the multi-barrier approach: in the catchment, at reservoirs, in the delivery system for raw water and treating water for drinking.

67.9
Tuesday 17 July
-0.8
1,751,776 ML
2,581,749 ML
10,217 ML
1,460 ML
-13,421 ML
Tuesday 17 July