The published numbers

What's in Melbourne's tap water?

Melbourne's water carries a permanent chlorine residual — and it stays in unless you take it out.

Melbourne's water is genuinely good by national standards — soft, low TDS, clean safety record. What it does carry: a permanent chlorine residual (~0.76 mg/L — the taste, the smell, the post-shower skin) and deliberately added fluoride (~0.79 mg/L). Every figure is measured against guidelines, not laws — no Australian utility can be prosecuted for exceeding them.

Chlorine ~0.76 mg/L residual — in every shower and glass
Fluoride Added · ~0.79 mg/L average
Trihalomethanes (THMs) ~48 µg/L average · AU allows 250 — 2.5× the EU legal limit
Water hardness ~18 mg/L · soft — easy on appliances
Dissolved solids (TDS) ~47 mg/L average
E. coli 100% compliance across the network

Every figure comes from South East Water's published reporting — Annual Drinking Water Quality Report 2024–25. Measured where the water leaves the plant — the mains to your door are never tested.

These are the city-wide numbers. Yours are more specific.

Type your address and we'll map your suburb's own report — what's in the water when it reaches your street, and which of it is fixable at home.

Get my street's report → 60 seconds · no email · your suburb's own numbers