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In 2018, United Kingdom had 1817 urban waste water agglomerations of more then 2 000 population equivalent (p.e). These agglomerations generated a total load of 72 198 959 p.e. 99% of this load is connected to collecting systems and 1% addressed through Individual and Appropriate Systems (storage or septic tanks, micro-stations,...). These agglomerations are connected to 1061 secondary treatment plants and 756 more stringent treatment plants. All these treatment plants have a total design capacity of 91 994 399 p.e.

Agglomeration : Generated load by collection

Generated Load by collection type (population equivalent – p.e.)
See the data table
Generated Load by collection type (population equivalent – p.e.)
See diagram
Destination2018
Collected by collecting system71,809,082 pe, 99.5 %
Individual and Appropriate Systems389,181 pe, 0.5 %
Discharged without treatment0 pe, 0 %
Total72,198,263 pe, 100 %
*pe: Population equivalent, *%: Rate
Generated Load by sewage network type (population equivalent – p.e.)
See the data table
Generated Load by sewage network type (population equivalent – p.e.)
See diagram
Network type2018
No information72,198,959 pe
1,817 na
*pe: Population equivalent, *na: Number of agglomerations

Agglomeration : Generated load by compliance

Total generated load by compliance (population equivalent – p.e.)
See the data table
Total generated load by compliance (population equivalent – p.e.)
See diagram
Compliance state2018
Compliant68,369,040 pe
Not Compliant3,773,946 pe
Not relevant55,973 pe
Total72,198,959 pe
*pe: Population equivalent
Number of agglomerations by compliance
See the data table
Number of agglomerations by compliance
See diagram
Compliance state2018
Compliant1,749
Not Compliant67
Not relevant1
Total1,817
*: Number of elements

Waste water treatment plant : Load entering by compliance

Total load entering by compliance (population equivalent – p.e.)
See the data table
Total load entering by compliance (population equivalent – p.e.)
See diagram
Compliance state2018
Not Compliant3,718,451 pe
Not relevant62,110 pe
Compliant68,364,463 pe
Pending Deadline55,973 pe
Total72,200,997 pe
*pe: Population equivalent
Number of treatment plants by compliance
See the data table
Number of treatment plants by compliance
See diagram
Compliance state2018
Not Compliant67
Not relevant10
Compliant1,740
Pending Deadline1
Total1,818
*: Number of elements

Waste water treatment plant : Load entering by treatment type

Total load entering by treatment type (population equivalent – p.e.)
See the data table
Total load entering by treatment type (population equivalent – p.e.)
See diagram
Treatment type2018
Secondary treatment35,632,966 pe
Not connected55,973 pe
More stringent treatment36,512,058 pe
Total72,200,997 pe
*pe: Population equivalent
Number of treatment plants by treatment type
See the data table
Number of treatment plants by treatment type
See diagram
Treatment type2018
Secondary treatment1,061
Not connected1
More stringent treatment756
Total1,818
*: Number of elements

Agglomeration : generated load by agglomeration size

Total generated load by agglomeration size (population equivalent – p.e.)
See the data table
Total generated load by agglomeration size (population equivalent – p.e.)
See diagram
Size2018
< 10,000 pe4,477,983 pe
10,000 to 100,000 pe22,202,982 pe
> 100,000 pe45,517,994 pe
Total72,198,959 pe
*pe: Population equivalent
Number of agglomerations by size
See the data table
Number of agglomerations by size
See diagram
Size2018
< 10,000 pe966
10,000 to 100,000 pe703
> 100,000 pe148
Total1,817
*: Number of elements

MS Level statistics

Sludge destination
See the data table
In 2018, 1,077,040 Tons DS of sludge was generated
Sludge destination
See diagram
In 2018, 1,077,040 Tons DS of sludge was generated
Destination2018
Discharged into surface waters : Pipelines0.0
Discharged into surface waters : Ships0.0
Discharged into surface waters : Others0.0
Re-used: Soil and agriculture848,113.0
Re-used: Others87,589.0
Disposed: Landfill406.0
Disposed: Incineration140,932.0
Disposed: Others0.0
Total1,077,040.0

Legal compliance

Legal compliance for collection in p.e.
See the data table
Legal compliance for collection in p.e.
See diagram
YearCompliantNot compliantNot relevant
201872,142,986 - 55,973
Legal compliance for collection by number of agglomerations
See the data table
Legal compliance for collection by number of agglomerations
See diagram
YearCompliantNot compliantNot relevant
20181,816 - 1
Legal compliance for 2nd treatment in p.e.
See the data table
Legal compliance for 2nd treatment in p.e.
See diagram
YearCompliantNot compliantNot relevant
201870,411,7771,279,400117,905
Legal compliance for 2nd treatment by number of agglomerations
See the data table
Legal compliance for 2nd treatment by number of agglomerations
See diagram
YearCompliantNot compliantNot relevant
20181,7941211
Legal compliance for 3rd treatment in p.e.
See the data table
Legal compliance for 3rd treatment in p.e.
See diagram
YearCompliantNot compliantNot relevant
201825,891,2552,684,43743,233,390
Legal compliance for 3rd treatment by number of agglomerations
See the data table
Legal compliance for 3rd treatment by number of agglomerations
See diagram
YearCompliantNot compliantNot relevant
2018404561,357