Sewage Tank Cleaning

Merlin Close CSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Merlin Close CSO. Compare reported spill counts, total duration and monitor operation by year, with source details and gaps in the series identified.

← All records

Annual monitoring returns

2022

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	26	36.93	100
2024	35	47.55	100
2023	35	50.02	99.99
2022	21	18.02	100

Published record details

Reference: WXW00714
Location: Trym - source to conf R Avon (Brist)
Coordinates: 51.49514, -2.62460
Watercourse: River Trym
Sewerage company: Wessex Water
Asset type: SO on sewer network
Permit reference: 013101
Discharge grid reference: ST5673677540
Reporting years: 2025, 2024, 2023, 2022
Catchment: Trym - source to conf R Avon (Brist)

Location

Merlin Close CSO
51.49514, -2.62460

Understanding annual storm overflow figures

The Environment Agency's annual returns report storm overflow monitoring information supplied by water companies. Spill counts use the regulatory 12/24-hour block method, so a counted spill is not necessarily a single uninterrupted discharge. Duration is the reported total time in spill, rather than the volume of sewage discharged. Monitor operation indicates the percentage of the reporting period for which the monitor operated. Missing values, incomplete monitoring and changes in recorded outlet details can affect comparisons between years. These annual figures describe historical reporting periods, not live discharge conditions or the cause of sewage problems at an individual property.

Nearby records

Stoke Lane Combined Sewer Overflow0 km 11 Newcombe Road CSO0 km Westbury Road Combined Sewer Of0 km Abbey Road Combined Sewer Overflow0 km Westbury Road Combined Sewer Of0 km

Sewage Tank Cleaning

Need help with sewage at a property or site?

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.

Discuss sewage removal