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Swinton Sewage Treatment Works: sewage overflow history

Review available Environment Agency annual monitoring returns for Swinton 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

2022

169

2023

119

2024

106

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	106	800.5	85.65
2024	119	1,108.88	92.33
2023	169	2,576	97.06
2022	62	322.25	81.75

Published record details

Reference: YWS00088
Location: Don from Greasborough Dyke to River Dearne
Coordinates: 53.48734, -1.29405
Watercourse: River Don
Sewerage company: Yorkshire Water
Asset type: Storm tank at WwTW
Permit reference: 2160
Discharge grid reference: SK4694099190
Reporting years: 2025, 2024, 2023, 2022
Catchment: Don from Greasborough Dyke to River Dearne

Location

Swinton Sewage Treatment Works
53.48734, -1.29405

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

Carlisle Street CSO0.6 km Lime Grove CSO0.6 km Britain Street CSO0.7 km Swinton Road CSO0.7 km Ferryboat Lane Sewage Pumping Stn1.2 km

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