Hardest and softest tap water in Bulgaria
All 26 cities in Bulgaria with published data, ranked by total hardness. The national median is 1.26 mmol/L.
Bulgarian health inspectorates report hardness in mgeq/L (1 mgeq/L = 0.5 mmol/L); the limit is 12 mgeq/L.
13 cities with the hardest water
| # | mmol/L | mg/L | ||
|---|---|---|---|---|
| 1 | Parvomay · Plovdiv | 3.11 | 311 | very hard |
| 2 | Brezovo · Plovdiv | 2.92 | 293 | very hard |
| 3 | Rakovski · Plovdiv | 2.73 | 273 | very hard |
| 4 | Svishtov · Veliko Tarnovo province | 2.47 | 247 | very hard |
| 5 | Plovdiv · Plovdiv | 2.45 | 245 | very hard |
| 6 | Stamboliyski · Plovdiv | 2.37 | 237 | very hard |
| 7 | Asenovgrad · Plovdiv | 2.3 | 230 | very hard |
| 8 | Saedinenie · Plovdiv | 2.28 | 228 | very hard |
| 9 | Kaloyanovo · Plovdiv | 1.78 | 178 | hard |
| 10 | Laki · Plovdiv | 1.73 | 173 | hard |
| 11 | Krichim · Plovdiv | 1.47 | 147 | hard |
| 12 | Perushtitsa · Plovdiv | 1.37 | 137 | hard |
| 13 | Gorna Oryahovitsa · Veliko Tarnovo province | 1.26 | 126 | hard |
13 cities with the softest water
| # | mmol/L | mg/L | ||
|---|---|---|---|---|
| 1 | Banite · Smolyan | 0.27 | 27 | soft |
| 2 | Klisura · Plovdiv | 0.38 | 38 | soft |
| 3 | Kalofer · Plovdiv | 0.38 | 38 | soft |
| 4 | Sofia · Sofia City (Sofia-grad) | 0.42 | 43 | soft |
| 5 | Rudozem · Smolyan | 0.43 | 43 | soft |
| 6 | Chepelare · Smolyan | 0.46 | 46 | soft |
| 7 | Karlovo · Plovdiv | 0.57 | 57 | soft |
| 8 | Madan · Smolyan | 0.58 | 58 | soft |
| 9 | Devin · Smolyan | 0.62 | 62 | moderately hard |
| 10 | Sadovo · Plovdiv | 0.9 | 90 | moderately hard |
| 11 | Smolyan · Smolyan province | 1.01 | 101 | moderately hard |
| 12 | Nedelino · Smolyan | 1.12 | 112 | moderately hard |
| 13 | Veliko Tarnovo · Veliko Tarnovo province | 1.26 | 126 | hard |