Drinking water quality

​​The usage laboratory of HSY's Water Services carries out daily monitoring or the microbiological, physical, chemical and sensory quality of output water from the Pitkäkoski and Vanhakaupunki water treatment plants. 

The accompanying water quality table is updated approximately four times a year.​

Water quality 2017_4.jpg Water quality 2017_4.pdf (updated 8th January 2018)