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Briscoe Lane CSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Briscoe Lane 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	0	0	100
2024	0	0	100
2023	24	85.51	99.14
2022	11	14.55	99.86
2021	6	5.38	99.96

Published record details

Reference: UUP00330
Location: Medlock (Lumb Brook to Irwell)
Coordinates: 53.49062, -2.19032
Watercourse: River Medlock
Sewerage company: United Utilities
Asset type: SO on sewer network
Permit reference: 016982735
Discharge grid reference: SJ8747099340
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Medlock (Lumb Brook to Irwell)

Location

Briscoe Lane CSO
53.49062, -2.19032

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

Bank Street CSO0.1 km Lord North Street/Clifton St CSO0.9 km Culceth Lane CSO0.9 km Parrott Street/Bromlow Street CSO1.5 km Mill Street Bradford Manchester CSO1.5 km

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