Australia has some of the safest tap water in the world, however "safe" and "great tasting" are not the same thing. Every state meets the strict Australian Drinking Water Guidelines set by the NHMRC, yet what reaches your glass varies a lot on where you live. A chlorine tang here, an earthy note there, or the odd cloudy pour.
Here's what's really going on with your water, state by state.
New South Wales
Most of NSW draws water from five catchments: Warragamba, Shoalhaven, Upper Nepean, Woronora and Blue Mountains and travels through over 21,000km of pipes, before reaching your home. Sydney Water treats using chloramine, which can leave a metallic or chlorine-like taste. NSW households have also mentioned the occasional cloudy water. While this isn’t visually appealing, Sydney Water states it's just harmless air bubbles that form when water of different temperatures enters the system.
Victoria
Melbourne's water comes from the protected Yarra Ranges. Melbourne Water notes taste and smell can shift seasonally, and in the western growth corridor of Melbourne, Greater Western Water flags that the naturally occurring algae compound, geosmin, can give water a faint earthy note.
Queensland
Brisbane runs on the Seqwater-managed SEQ Water Grid. Seqwater uses chloramine across the whole grid and periodically reports earthy or musty taste changes after hot, rainy weather, caused by naturally occurring geosmin and algae. Both safe, but carry a noticeable taste to many households.
South Australia
SA's tough reputation comes down to geography. Much of Adelaide's supply is piped in from the River Murray after flowing through flat, low-rainfall country that concentrates salt and organic matter. SA Water confirms this organic load reacts with chlorine to form trihalomethanes, and it's part of why the state's water has historically had a stronger treated taste.
Western Australia
Perth's supply is genuinely unique. Water Corporation's 2023–24 Annual Report puts the mix at 44.6% groundwater, 36% desalinated seawater and 18.7% surface water. Water Corporation chlorinates every scheme, especially given the long, warm pipelines.
Tasmania
Tasmania's water is generally mild-tasting, sourced from surface catchments and chlorinated. TasWater keeps chlorine below 1.0mg/L in most systems, though still detectable depending on palate.
Australian Capital Territory
Canberra draws from reservoirs on the Cotter and Queanbeyan rivers in the Brindabella catchments, treated with UV light ahead of chlorine at the Mount Stromlo plant. Icon Water confirms taste issues are rarely more than the odd earthy note.
Northern Territory
The NT runs mostly on groundwater. Power and Water Corporation supplies Darwin from the Darwin River Dam blended with groundwater, while Alice Springs draws entirely from Amadeus Basin aquifers up to 185m deep. Its treatment process uses coagulation and filtration followed by chlorine or UV, and it notes that wet-season mixing in the dam can cause an unflattering yet harmless yellow-brown discolouration.
So why does any of this matter?
Meeting the ADWG means your water is safe to drink, though it doesn't mean it tastes quite how you'd like. Chlorine and chloramine are essential for keeping water safe across long pipe networks, but they're also the main reason tap water can taste flat, chemically or "off." Naturally occurring geosmin and algae add an earthy note in several states after rain, and sediment or air bubbles can occasionally cloud a glass — all harmless, but not exactly refreshing.
This is exactly the gap a fridge or under sink water filter is designed to close. Rather than changing what's already regulated and safe, it targets what actually affects taste, odour and clarity — reducing chlorine and chloramine taste, cutting sediment, and giving you consistently cleaner, crisper-tasting water and ice straight from your fridge door.
Not sure which filter fits your fridge? Browse the full range at Discount Fridge Filters and find the right match for your model in TWO clicks, or talk to our friendly Australian team using the chat function at the bottom left of this page or give us a call at 1300 115 754.
Sources
Bureau of Meteorology. (2024). National water account 2024: Sydney region description. https://www.bom.gov.au/water/nwa/2024/sydney/regiondescription/geographicinformation.shtml
Greater Western Water. (n.d.). Water quality. https://www.gww.com.au/water-waste/your-water-supply/water-quality
Icon Water. (n.d.). Changes to the taste or odour of your water. https://www.iconwater.com.au/my-home/water-quality/changes-taste-or-odour-your-water
Icon Water. (n.d.). Mount Stromlo Water Treatment Plant. https://www.iconwater.com.au/Water-education/Water-and-sewerage-system/Water-Treatment/Mt-Stromlo-Water-Treatment-Plant
Icon Water. (n.d.). Water treatment. https://www.iconwater.com.au/water-education/water-and-sewerage-system/water-treatment.aspx
Melbourne Water. (n.d.). Water quality testing. https://www.melbournewater.com.au/water-and-environment/water-management/water-quality/water-quality-testing
National Health and Medical Research Council. (n.d.). Australian drinking water guidelines. https://www.nhmrc.gov.au/about-us/publications/australian-drinking-water-guidelines
Power and Water Corporation. (n.d.). Drinking water quality. https://www.powerwater.com.au/about/what-we-do/water-supply/drinking-water-quality
Power and Water Corporation. (n.d.). Water supply. https://www.powerwater.com.au/about/what-we-do/water-supply
SA Water. (n.d.). River sources. https://www.sawater.com.au/water-and-the-environment/south-australias-water-sources/river-sources
SA Water. (n.d.). Your drinking water profile. https://www.sawater.com.au/water-and-the-environment/safe-and-clean-drinking-water/your-drinking-water-profile
Seqwater. (n.d.). Taste and odour. https://www.seqwater.com.au/taste-and-odour
South Australian Department for Environment and Water. (n.d.). About the River Murray. https://www.environment.sa.gov.au/topics/water-and-river-murray/basin-river-murray-lakes-and-the-coorong/about-the-river-murray
Sydney Water. (n.d.). Safe drinking water. https://www.sydneywater.com.au/water-the-environment/how-we-manage-sydneys-water/safe-drinking-water.html
TasWater. (n.d.). Chlorine in drinking water. https://www.taswater.com.au/community/water-quality/your-drinking-water/chlorine-in-drinking-water
Water Corporation. (n.d.). Drinking water quality. https://www.watercorporation.com.au/about-us/our-performance/drinking-water-quality
Water Corporation. (2024). Drinking water quality annual report 2023–24. https://pw-cdn.watercorporation.com.au/-/media/watercorp/documents/about-us/our-performance/drinking-water-quality/drinking-water-quality-annual-report-2023-24.pdf
WaterNSW. (n.d.). The water supply system. https://www.waternsw.com.au/education/learning-about-water/the-water-supply-system
