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Leek Sewage Treatment Works: sewage overflow history

Review available Environment Agency annual monitoring returns for Leek Sewage Treatment Works. 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

2020

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	8	42.61	99.96
2024	20	134.64	100
2023	44	741.43	99.9
2020	13	78.32	99.17

Published record details

Reference: SVT01344
Location: Churnet from Meerbrook to Leekbrook
Coordinates: 53.08690, -2.03370
Watercourse: River Churnet
Sewerage company: Severn Trent Water
Asset type: Storm tank at WwTW
Permit reference: T/30/36067/R
Discharge grid reference: SJ9784054410
Reporting years: 2025, 2024, 2023, 2020
Catchment: Churnet from Meerbrook to Leekbrook

Location

Leek Sewage Treatment Works
53.08690, -2.03370

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

Spicers Stone Storm CSO0.7 km Leek - Junction Road CSO0.9 km Leek - Junction Road CSO0.9 km Station Road CSO1.9 km Vicarage Road CSO2.5 km

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