Table
| 2017 | 2018 | 2019 | Change in per cent | |
|---|---|---|---|---|
| 2018 - 2019 | ||||
| Percentage of population connected to municipal wastewater facilities (per cent) | 84.9 | 85.3 | 85.5 | 0.2 |
| Total length of sewage pipelines (metres) | 37 399 466 | 38 004 482 | 38 392 866 | 1.0 |
| Percentage of total wastewater pipeline system renewed, 3-year-average (per cent | 0.62 | 0.60 | 0.61 | 1.7 |
| Average age of wastewater pipeline system (year) | 30.0 | 30.0 | 31.0 | 3.3 |
| Length of separate stormwater pipelines (metres) | 18 318 610 | 18 828 346 | 19 065 437 | 1.3 |
| Number of sewage overflow in sewage pipelines and manhole covers (numbers/km pipeline) | 0.054 | 0.051 | 0.045 | -11.8 |
| Total wastewater load in treatment plants (kg tot-P) | 3 096 898 | 2 987 611 | 2 953 666 | -1.1 |