Review available Environment Agency annual monitoring returns for Merton WWTW CSO. Compare reported spill counts, total duration and monitor operation by year, with source details and gaps in the series identified.
← All records| Year | Counted spills | Total spill duration (hours) | Monitor operation (%) |
|---|---|---|---|
| 2025 | 144 | 1,461.16 | 96.51 |
| 2024 | 64 | 754.48 | 99.74 |
| 2023 | 106 | 1,164.79 | 93.78 |
Describe the affected area and the type of assistance you are seeking, such as sewage removal, tank cleaning or pump station cleaning. Include any information already available about the source of the problem.
Contains Environment Agency information © Environment Agency copyright and database right 2025, licensed under the Open Government Licence v3.0.
Data retrieved: 27 Oct 2026, 11:58 GMT · Published data snapshot: 2025
Open Government Licence v3.0Contains Environment Agency information © Environment Agency copyright and database right 2024, licensed under the Open Government Licence v3.0.
Data retrieved: 27 Oct 2026, 11:58 GMT · Published data snapshot: 2024
Open Government Licence v3.0Contains Environment Agency information © Environment Agency copyright and database right 2023, licensed under the Open Government Licence v3.0.
Data retrieved: 27 Oct 2026, 11:58 GMT · Published data snapshot: 2023
Open Government Licence v3.0Contains Environment Agency information © Environment Agency copyright and database right 2022, licensed under the Open Government Licence v3.0.
Data retrieved: 27 Oct 2026, 11:58 GMT · Published data snapshot: 2022
Open Government Licence v3.0Contains Environment Agency information © Environment Agency copyright and database right 2021, licensed under the Open Government Licence v3.0.
Data retrieved: 27 Oct 2026, 11:58 GMT · Published data snapshot: 2021
Open Government Licence v3.0Contains Environment Agency information © Environment Agency copyright and database right 2020, licensed under the Open Government Licence v3.0.
Data retrieved: 27 Oct 2026, 11:58 GMT · Published data snapshot: 2020
Open Government Licence v3.0Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026.
Data retrieved: 27 Oct 2026, 12:04 GMT
Open Government Licence v3.0