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Bleakley Lane No 2 CSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Bleakley Lane No 2 CSO. 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

2021

2022

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	16	50	100
2024	24	51	99.93
2023	40	88.08	96.31
2022	28	44.5	99.98
2021	28	71.67	99.76
2020	25	47.25	100

Published record details

Reference: YWS01950
Location: Owler Beck from Source to River Calder
Coordinates: 53.60621, -1.46081
Watercourse: Applehaigh Beck
Sewerage company: Yorkshire Water
Asset type: SO on sewer network
Permit reference: WRA8744
Discharge grid reference: SE3577512318
Reporting years: 2025, 2024, 2023, 2022, 2021, 2020
Catchment: Owler Beck from Source to River Calder

Location

Bleakley Lane No 2 CSO
53.60621, -1.46081

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

Notton Sps1 km Applehaigh View Sps1.1 km Meadow Crescent CSO1.4 km Church Hill CSO1.5 km Pools Lane CSO2.3 km

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