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Sweetbrier Lane CSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Sweetbrier Lane 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	16	12.36	100
2024	16	18.81	100
2023	17	17.18	100
2022	8	7.47	100
2021	18	22.46	100

Published record details

Reference: SBB01199
Location: North Brook (East Devon)
Coordinates: 50.72347, -3.49160
Watercourse: Northbrook
Sewerage company: South West Water
Asset type: SO on sewer network
Permit reference: 202099
Discharge grid reference: SX94819260
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: North Brook (East Devon)

Location

Sweetbrier Lane CSO
50.72347, -3.49160

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

First Avenue Service Lane CSO0.3 km North Lawn Court CSO0.3 km Heavitree Pleasure Ground CSO0.3 km Lower Avenue CSO0.3 km 15 Hamlin Lane CSO1 km

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