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Crewe Road Mill Lane CSO 138Cg: sewage overflow history

Review available Environment Agency annual monitoring returns for Crewe Road Mill Lane CSO 138Cg. 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	0.17	96.31
2024	0	0	98.98
2023	0	0	99.99
2022	1	0.13	99.99
2021	0	0	100

Published record details

Reference: UUP00562
Location: Wheelock (including Hassall Brook)
Coordinates: 53.12821, -2.37328
Watercourse: River Wheelock
Sewerage company: United Utilities
Asset type: SO on sewer network
Permit reference: 01CON0044
Discharge grid reference: SJ7512059070
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Wheelock (including Hassall Brook)

Location

Crewe Road Mill Lane CSO 138Cg
53.12821, -2.37328

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

Mill Hill Lane CSO 132F80.8 km Sandbach Wastewater Treatment Works0.9 km Middlewich Road CSO 131Ad1.2 km Hassall Road CSO 131X81.2 km Brook Mill Combined Sewer Overflow1.2 km

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