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 1.1. - 30.8.2018 (updated 18th September 2018)