What's in Brisbane's tap water?

At its peaks, Brisbane's tap water would be illegal to supply in the European Union.

Brisbane's trihalomethane readings hit ~130 µg/L at the 95th percentile — 30% above the EU's legally binding limit of 100. It's allowed here because Australia's guideline is 250, and it's only a guideline. Add fluoride dosing, chlorine residuals up to 3 mg/L, and moderately hard water quietly scaling every kettle and hot-water system in the city.

Every figure comes from Urban Utilities's published reporting — Annual Drinking Water Performance Report 2023–24. Measured where the water leaves the plant — the mains to your door are never tested.