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Conishead Terracem South Hetton CSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Conishead Terracem South Hetton CSO. 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	14	6.87	99.98
2024	11	21.66	94.55
2023	24	48.5	92.25
2022	22	32.5	99.93
2021	44	233.75	99.96

Published record details

Reference: NWL00314
Location: Pittington Beck from Coalford to Old Durham Beck
Coordinates: 54.80454, -1.41673
Watercourse: Coldwell Burn, Tributary Of
Sewerage company: Northumbrian Water
Asset type: SO on sewer network
Permit reference: 245/A/0605
Discharge grid reference: NZ3759145674
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Pittington Beck from Coalford to Old Durham Beck

Location

Conishead Terracem South Hetton CSO
54.80454, -1.41673

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

Murton CSO 151.3 km Coldwell Burn SSO1.6 km Elemore Vale Sps1.7 km Coop House Wood CSO1.8 km Pesspool Lane CSO2.3 km

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