Ageing sewerage systems are a major problem for society
Poor current state of sewerage systems
| Aging infrastructure | Significant investment need | Consistent service need | Threat from severe weather |
|---|---|---|---|
|
Average network ~40 years old and in some cases they are almost two times past their life expectancy |
Only ~1% p.a. of the sewerage systems are renewed in Norway |
~30% average leakage rate in Norway |
Severe weather further exacerbates sewerage systems condition |
UIM services essential for society
- Increase the life of sewerage systems
- Continuous maintenance prevents flooding and the spread of water-borne diseases
- Integral part of the sewerage system value chain – essential for society every day of the year
- Drainage and other services mission critical for institutions from utilities to hospitals
- The UIM industry has its own UN sustainability target (#6 water and sewerage systems) and is crucial for implementation of UN target 11 and 13
Condition of the sewerage systems in Norway, Germany, Sweden and Denmark
| Average age of sewers | Share of sewers to be renewed | Overall condition of the sewerage system | Planned investments in the sewerage system | |
|---|---|---|---|---|
 NOK ~3.0bn TAM |
~32 years | ~1.0 per cent p.a. from 2017 to 2040 | Overall bad condition with~30% leakage | NOK ~4.8bn p.a. from 2021 to 2040 |
 NOK ~24.6bn TAM |
~40 years on average. ~30% older than 50 years | 0.8-1.2 per cent | Overall bad condition with ~19%of sewers with medium to strong damages | Actual investments are significantly lower than the needed investment estimated EUR 13.5bn p.a. |
 NOK ~3.0bn TAM |
~40-50 years | n.a. | Overall good condition with ~6% leakage | NOK ~11.0bnp.a. since 2012 |
 NOK ~4.0bn TAM |
~35 years | ~0.5 per cent p.a. from 2002 to 2017 | Overall bad condition with ~15% leakage | NOK ~4.0bn p.a. from 2017 to 2047 |