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Dunelm Road Combined Sewer Overflow: sewage overflow history

Review available Environment Agency annual monitoring returns for Dunelm Road Combined Sewer Overflow. 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

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	0	0	96.72
2024	0	0	94.79
2023	1	1	96.9

Published record details

Reference: NWL00462
Location: Derwent from Burnhope Burn to River Tyne
Coordinates: 54.84154, -1.85999
Watercourse: The Dene Burn
Sewerage company: Northumbrian Water
Asset type: SO on sewer network
Permit reference: EPRZB3793AG
Discharge grid reference: NZ0909049645
Reporting years: 2025, 2024, 2023
Catchment: Derwent from Burnhope Burn to River Tyne

Location

Dunelm Road Combined Sewer Overflow
54.84154, -1.85999

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

Moorside CSO Der0020.2 km Berry Edge Road CSO Der0960.2 km Castleside0.4 km Consett Academy South CSO Der0900.6 km A692 CSO0.9 km

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