Canberra Water Hardness & Quality Report (2026)

The Icon Water utility supplies drinking water to residents of Canberra, Australian Capital Territory, and Queanbeyan-Palerang. Its primary source is the Murrumbidgee River watershed, supplemented by associated reservoirs. Treatment plants process between 83 and 225 megalitres of water daily. Icon Water provides annual drinking water quality reports and conducts extensive monitoring throughout its service areas. The Murrumbidgee River watershed winds through the Australian Capital Territory, passing over ancient Ordovician and Silurian sedimentary rocks belonging to the Lachlan Fold Belt. These geological formations, predominantly shales and quartzites, are not very soluble. This characteristic geology means the water supply is naturally soft, containing only small amounts of dissolved minerals like calcium and magnesium. The watershed's geology and the nature of its aquifers contribute to water that's gentle on home plumbing and appliances. Because Canberra's water is soft, you'll find minimal limescale buildup on fixtures, pipes, and appliances like kettles, dishwashers, and water heaters. Most homeowners won't need a water softener, and plumbing maintenance is generally less demanding. While the soft water is good for appliance longevity and reduces the need for descaling products, some people notice a slightly salty taste compared to what they might be used to with harder water.