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Seymour Avenue/Salisbury Rd CSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Seymour Avenue/Salisbury Rd 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	24	5.21	99.99
2024	16	4.12	100
2023	18	4.88	100
2022	16	3.16	100
2021	23	8.34	100

Published record details

Reference: SBB01070
Location: Not part of a WFD catchment
Coordinates: 50.37378, -4.10868
Watercourse: River Plym Via Sws (Estuarine)
Sewerage company: South West Water
Asset type: SO on sewer network
Permit reference: 301734
Discharge grid reference: SX50155478
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Not part of a WFD catchment

Location

Seymour Avenue/Salisbury Rd CSO
50.37378, -4.10868

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

178 Beaumont Road CSO0 km 78 Beaumont Road CSO0 km Seymour Avenue/Beaumont Rd CSO0 km Jephson Road CSO0 km Farringdon Road CSO0 km

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