Tap water hardness in Queensland
We have published hardness data for 29 cities in Queensland. The median is 68 mg/L; the hardest water is in Kingaroy (173 mg/L), the softest in Mareeba (36 mg/L).
10 % of these cities have hard or very hard water (over 120 mg/L).
Australian Drinking Water Guidelines: aesthetic target ≤ 200 mg/L CaCO₃.
Cities in Queensland, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Kingaroy | 173 | 173 | hard |
| Dalby | 162 | 162 | hard |
| Bargara | 123 | 123 | hard |
| Brisbane | 117 | 117 | moderately hard |
| Maryborough | 107 | 107 | moderately hard |
| Ayr | 105 | 105 | moderately hard |
| Gladstone | 91 | 91 | moderately hard |
| Beenleigh | 80 | 80 | moderately hard |
| Logan City | 80 | 80 | moderately hard |
| Mount Isa | 75 | 75 | moderately hard |
| Gympie | 73 | 73 | moderately hard |
| Emerald | 72 | 72 | moderately hard |
| Capalaba | 68 | 68 | moderately hard |
| Cleveland | 68 | 68 | moderately hard |
| Redland Bay | 68 | 68 | moderately hard |
| Victoria Point | 68 | 68 | moderately hard |
| Bundaberg | 65 | 65 | moderately hard |
| Hervey Bay | 59 | 59 | soft |
| Caloundra | 58 | 58 | soft |
| Maroochydore | 58 | 58 | soft |
| Nambour | 58 | 58 | soft |
| Sunshine Coast | 58 | 58 | soft |
| Caboolture | 57 | 57 | soft |
| North Lakes | 57 | 57 | soft |
| Redcliffe | 57 | 57 | soft |
| Strathpine | 57 | 57 | soft |
| Gold Coast | 38 | 38 | soft |
| Moranbah | 37 | 37 | soft |
| Mareeba | 36 | 36 | soft |