TOP 10 HARDEST WATER SUPPLIES - IRELAND
The ten water supply zones in Ireland with the hardest water, ranked from Uisce Éireann data. The water hardness data in this chart has been verified by Aquatell directly from primary sources.
| Rank | City / Town / Village(water supply zone) | County | mg/l | gpg | °Clark | °dH | °fH | Source |
|---|---|---|---|---|---|---|---|---|
| 1 | 1. MountmellickMountmellick 1 | Co. Laois | 454 | 26.5 | 31.8 | 25.4 | 45.4 | Source |
| 2 | 2. AbbeyleixAbbeyleix 1 | Co. Laois | 398 | 23.3 | 27.9 | 22.3 | 39.8 | Source |
| 3 | 3. BallinakillBallinakill 2 | Co. Laois | 397 | 23.2 | 27.9 | 22.2 | 39.7 | Source |
| 4 | 4. MoyloughKilkerrin Moylough | Co. Galway | 393 | 23 | 27.6 | 22 | 39.3 | Source |
| 5 | 5. MountbellewMountbellew P.S. | Co. Galway | 383 | 22.4 | 26.8 | 21.4 | 38.3 | Source |
| 6 | 6. BorrisokaneBorrisokane | Co. Tipperary | 381 | 22.3 | 26.8 | 21.4 | 38.1 | Source |
| 7 | 7. TemplemoreTemplemore RWSS (Zone 1) | Co. Tipperary | 380 | 22.2 | 26.6 | 21.3 | 38 | Source |
| 8 | 8. TempletuohyTempletuohy | Co. Tipperary | 380 | 22.2 | 26.7 | 21.3 | 38 | Source |
| 9 | 9. Castlerea, BallintoberCastlerea Regional | Co. Roscommon | 377 | 22 | 26.5 | 21.1 | 37.7 | Source |
| 10 | 10. CarrigkerryCarrigkerry Water Supply | Co. Limerick | 377 | 22 | 26.4 | 21.1 | 37.7 | Source |
Showing the 10 hardest water supply zones in Ireland. Find every town on the full Ireland chart.