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Sherburn SSO Manhole No. 34: sewage overflow history

Review available Environment Agency annual monitoring returns for Sherburn SSO Manhole No. 34. Compare reported spill counts, total duration and monitor operation by year, with source details and gaps in the series identified.

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Annual monitoring returns

2021

2022

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	1	0.03	99.53
2024	0	0	89.75
2023	3	1.75	88.42
2022	0	0	99.99
2021	0	0	99.99

Published record details

Reference: NWL01186
Location: Old Durham Beck from Source to Pittington Beck
Coordinates: 54.77029, -1.50537
Watercourse: Sherburnhouse Beck
Sewerage company: Northumbrian Water
Asset type: SO on sewer network
Permit reference: 245/E/0513
Discharge grid reference: NZ3192041820
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Old Durham Beck from Source to Pittington Beck

Location

Sherburn SSO Manhole No. 34
54.77029, -1.50537

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

Sherburn SSO Manhole No. 330 km Chapel Court Du0680.1 km Mill Lane CSO0.1 km Sherburn Sewage Treatment Works0.3 km Station Bank (Du21)1 km

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