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Stokesley Pumping Station No 1 SSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Stokesley Pumping Station No 1 SSO. 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

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	29	105.37	98.19
2024	31	192.5	94.94
2023	25	107	90.9
2022	Not reported	Not reported	0
2021	Not reported	Not reported	0

Published record details

Reference: NWL01309
Location: Leven from Source to Tame
Coordinates: 54.46828, -1.19457
Watercourse: Leven
Sewerage company: Northumbrian Water
Asset type: Storm discharge at pumping station
Permit reference: 254/C/0427
Discharge grid reference: NZ5230008400
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Leven from Source to Tame

Location

Stokesley Pumping Station No 1 SSO
54.46828, -1.19457

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

Sowerby Crescent/North Rd Junct CSO0.3 km Stokesley Sps No 2 CSO0.3 km Levenside/Manor Close CSO0.4 km Stokesley Sewage Treatment Works0.7 km West End Sps0.8 km

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