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Sackville St Montague St CSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Sackville St Montague St 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

2021

2022

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	0	0	86.22
2024	2	0.47	98.78
2023	0	0	100
2022	1	0.2	100
2021	0	0	100

Published record details

Reference: UUP01703
Location: Calder - Pendle Water to conf Ribble
Coordinates: 53.82354, -2.24241
Watercourse: Pendle Water Via Culvert
Sewerage company: United Utilities
Asset type: SO on sewer network
Permit reference: 01PEN0023
Discharge grid reference: SD8414036391
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Calder - Pendle Water to conf Ribble

Location

Sackville St Montague St CSO
53.82354, -2.24241

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

Clitheroe Road CSO0.1 km Timber Street CSO 320210.6 km 134 Burnley Road CSO0.6 km Lindred Road CSO1 km Lomeshaye Way CSO1.8 km

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