Real data · Water Corporation 2023–24

What's actually in your suburb's water?

Real measurements from Water Corporation's annual testing programme — hardness, TDS, pH, iron and more — translated into plain English with a filter recommendation for your area.

📍 Currently: Perth only. Sydney, Melbourne, Brisbane & more coming soon.

Popular suburbs — tap to look up

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About Perth's water: Supply comes from desalination (36%), surface water from dams (18.7%), groundwater (44.6%), and groundwater replenishment. Groundwater-heavy areas like Mirrabooka, Neerabup and Yanchep tend to have higher hardness and TDS. Desalination-dominant areas like Mandurah and Rockingham are softer. All Perth town water meets Australian Drinking Water Guidelines health standards.