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11786: Water quality of municipal water supply (M) 2015 - 2020

Mandatory *
Field for searching for a specific value in the list box. This is examples of values you can search for.Number of inhabitants connected to municipal water supply (number) , Number of inhabitants with ground water supply or disinfected surface water supply as their main source (number) , Number of inhabitants with surface water as their main water source (number) ,

Selected 1 of total 14


Mandatory *

Selected 1 of total 6

Number of selected data cells are:
(maximum number allowed is 300 000)
Number of selected cells exceeds the maximum allowed 300 000
Water quality See list over changes in regional classifications (in Norwegian).


Number of inhabitants supplied with treated water (treatment type 1 + 2) (number)

Treatment type 1: includes one of the following processes: coagulation/filtration, membrane filtration or Ozone/biofiltration. Treatment type 2: includes on of the following processes: chlorination (included chloramine), UV-treatment or Ozone. PAY ATTENTION: There is a 'break' i the time series in 2020, thus data before and after that time is not readily comparable for the variable treatment 1+ 2 here.

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