Your drinking water's journey

  • Your water supply is drawn from a range of sources, with around 80 per cent of the state’s water coming from the River Murray (which varies from throughout the year). The remaining water comes from our network of reservoirs, aquifers and from desalination.
  • Your water is then filtered* and treated. We select the most effective treatment processes according to the condition of the water source to ensure it’s safe and clean, and up to our high standards of quality.
  • Fluoride is added to most water supplies and your water is treated with either chlorine or chloramine or ultraviolet light, to meet strict health standards and the Australian Drinking Water Guidelines. These gives us all confidence our water is clean and safe.
  • Your water is monitored and tested – we carry out a new water test every 100 seconds throughout the course of a year.
  • Your water is delivered through one of the 271 pump stations and along your section of the more than 27,000 kilometres of pipe that services South Australia.
  • And, at the end of its journey, once the water leaves the homes of our customers, it joins a sewage and wastewater network. Some of it is returned to the community to irrigate city parklands, or wine and horticulture regions - saving money, water and contributing to the life of our state.

* Adelaide’s drinking water is filtered by us.  In some groundwater systems and regional areas of South Australia, filtering may not be needed – on account of the quality of the natural source, or because of other source specifics.