Water hardness is an indicator that tells about the content of calcium and magnesium ions in water. High water hardness can lead to scale deposits on household appliances and dishes. Water hardness in Poland varies depending on the province, which is caused by the geological diversity of the country. Here is a brief overview of water hardness by province.
Lower Silesia
In Lower Silesia, water hardness is one of the highest in Poland. Water is mainly extracted from deep aquifers, which are rich in calcium and magnesium ions. The average water hardness in this voivodeship is about 250-300 mg CaCO₃/l.
Kuyavian-Pomeranian Voivodeship
In Kujawy and Pomorskie, water hardness is slightly lower than in Lower Silesia, but still quite high. The average water hardness in this voivodship is about 200-250 mg CaCO₃/l.
Lublin province
In Lubelskie, water hardness is relatively low, thanks to the fact that water comes mainly from surface water reservoirs. The average water hardness in this voivodeship is about 150-200 mg CaCO₃/l.
Lubuskie
In Lubuskie, water hardness is slightly higher than in Lubelskie, but still quite low. The average water hardness in this voivodship is about 200-250 mg CaCO₃/l.
Lodz Voivodeship
In Łódzkie, water hardness is quite high, as in Lower Silesia. The average water hardness in this voivodeship is about 250-300 mg CaCO₃/l.
Lesser Poland Voivodeship
In Lesser Poland, water hardness varies from place to place. In Krakow and its vicinity, water hardness is quite high, while in mountainous regions it is much lower. The average water hardness in this voivodship is about 200-250 mg CaCO₃/l.
Masovian district
In Mazowieckie, water hardness is average compared to other provinces. In Warsaw, water hardness is quite high, while in rural areas it is definitely lower. The average water hardness in this voivodship is about 200-250 mg CaCO₃/l.
Opolskie Voivodeship
In Opolskie, the water hardness is one of the highest in Poland. Water is mainly extracted from deep aquifers, which are rich in calcium and magnesium ions. The average water hardness in this voivodeship is about 250-300 mg CaCO₃/l.
Podkarpackie voivodeship
In Podkarpacie, water hardness is relatively low, thanks to the fact that water comes mainly from surface water reservoirs. The average water hardness in this voivodeship is about 150-200 mg CaCO₃/l.
Podlaskie Voivodeship
In Podlasie, water hardness is quite low, as in Podkarpacie. The average water hardness in this voivodeship is about 150-200 mg CaCO₃/l.
Pomeranian Voivodeship
In Pomerania, water hardness is average compared to other provinces. The average water hardness in this voivodship is about 200-250 mg CaCO₃/l.
Silesian Voivodeship
In Silesia, water hardness is quite high, as in Lower Silesia and Opolskie. The average water hardness in this voivodeship is about 250-300 mg CaCO₃/l.
Holy Cross province
In Świętokrzyskie, water hardness is quite low, as in Podkarpacie and Podlasie. The average water hardness in this voivodeship is about 150-200 mg CaCO₃/l.
Warmian-Masurian Voivodeship
In Warmińsko-Mazurskie, water hardness is relatively low, due to the fact that water comes mainly from surface water reservoirs. The average water hardness in this voivodeship is about 150-200 mg CaCO₃/l.
Greater Poland Voivodeship
In Wielkopolska, water hardness is quite high, as in Lower Silesia, Opolskie and Silesia. The average water hardness in this voivodeship is about 250-300 mg CaCO₃/l.
West Pomeranian voivodeship
Water hardness in Zachodniopomorskie is average compared to other provinces. The average water hardness in this voivodship is about 200-250 mg CaCO₃/l.
Water hardness in Poland
To sum up, water hardness in Poland varies depending on the province. The water is harder in Lower Silesia, Opolskie, Wielkopolskie and Śląskie, while it is softer in Podkarpacie, Podlasie, Świętokrzyskie and Warmińsko-Mazurskie. However, even in regions with low water hardness, you should always consider installing a water softener to protect your home appliances from limescale damage.
