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Rowington Sewage Treatment Works: sewage overflow history

Review available Environment Agency annual monitoring returns for Rowington 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

110

2020

2023

111

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	45	546.48	95.04
2024	111	953.98	95.88
2023	93	670	99.9
2020	110	628.96	92.87

Published record details

Reference: SVT01913
Location: Preston Bagot Bk - source to conf R Alne
Coordinates: 52.32523, -1.72709
Watercourse: Kingswood Brook
Sewerage company: Severn Trent Water
Asset type: Inlet SO at WwTW
Permit reference: S/15/26102/R
Discharge grid reference: SP1869769716
Reporting years: 2025, 2024, 2023, 2020
Catchment: Preston Bagot Bk - source to conf R Alne

Location

Rowington Sewage Treatment Works
52.32523, -1.72709

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.

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