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Hognaston Sewage Treatment Works: sewage overflow history

Review available Environment Agency annual monitoring returns for Hognaston Sewage Treatment Works. 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

2023

102

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	61	667.07	94.4
2024	102	426.29	99.72
2023	92	306.87	96.5
2020	15	5.98	99.99

Published record details

Reference: SVT01157
Location: Henmore Brook Catch (trib of R Dove)
Coordinates: 53.04533, -1.64696
Watercourse: Henmore Brook
Sewerage company: Severn Trent Water
Asset type: Inlet SO at WwTW
Permit reference: T/29/35579/R
Discharge grid reference: SK2376649843
Reporting years: 2025, 2024, 2023, 2020
Catchment: Henmore Brook Catch (trib of R Dove)

Location

Hognaston Sewage Treatment Works
53.04533, -1.64696

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

Hulland Ward STW3 km Kniveton STW3 km Carsington - B5035 PS (CSO)3.6 km Wirksworth Sewage Treatment Works5.3 km Fenny Bentley (CSO)6.1 km

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