Multi-barrier approach
Specific water treatment methods can prevent disease from being transmitted to the community. However, treating water after it leaves reservoirs and storages is not the only way to maintain water quality.
The Sydney Catchment Authority uses a multi-barrier approach to ensure a safe water supply. This involves addressing water quality risks at several different stages in the supply system, instead of relying on the effectiveness of any single action.
The multi-barrier approach used to protect Sydney's drinking water includes:
The multi-barrier approach minimises the chance of contaminants passing through the entire system to the consumer's tap.
