Hardest and softest tap water in Malta
All 23 cities in Malta with published data, ranked by total hardness. The national median is 158 mg/L.
The Water Services Corporation reports total hardness in mg/L CaCO₃; Maltese tap water blends reverse-osmosis and groundwater, and the EU Drinking Water Directive sets no limit for hardness.
11 cities with the hardest water
| # | mg/L | mg/L | ||
|---|---|---|---|---|
| 1 | Swieqi · Is-Swieqi | 177 | 177 | hard |
| 2 | Dingli · Dingli | 173 | 173 | hard |
| 3 | Rabat · Ir-Rabat | 173 | 173 | hard |
| 4 | Madliena · Is-Swieqi | 170 | 170 | hard |
| 5 | Mtarfa · Mtarfa | 168 | 168 | hard |
| 6 | Sliema · Tas-Sliema | 162 | 162 | hard |
| 7 | Gudja · Il-Gudja | 160 | 160 | hard |
| 8 | Kirkop · Kirkop | 160 | 160 | hard |
| 9 | Zabbar · Ħaż-Żabbar | 160 | 160 | hard |
| 10 | Birzebbuga · Birżebbuġa | 159 | 159 | hard |
| 11 | Ghaxaq · Ħal Għaxaq | 159 | 159 | hard |
11 cities with the softest water
| # | mg/L | mg/L | ||
|---|---|---|---|---|
| 1 | Ghadira · Il-Mellieħa | 38 | 38 | soft |
| 2 | Xemxija · Saint Paul’s Bay | 128 | 128 | hard |
| 3 | Gharghur · Ħal Għargħur | 131 | 131 | hard |
| 4 | Mosta · Il-Mosta | 139 | 139 | hard |
| 5 | Qormi · Qormi | 145 | 145 | hard |
| 6 | San Pawl il-Bahar · Saint Paul’s Bay | 153 | 153 | hard |
| 7 | Ghajnsielem · Ghajnsielem | 153 | 153 | hard |
| 8 | L-Imgarr Gozo · L-Imġarr | 154 | 154 | hard |
| 9 | Kercem · Ta’ Kerċem | 154 | 154 | hard |
| 10 | Zejtun · Iż-Żejtun | 156 | 156 | hard |
| 11 | Lija · Lija | 158 | 158 | hard |