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Ripley Sewage Treatment Works: sewage overflow history

Review available Environment Agency annual monitoring returns for Ripley 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

2021

2022

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	47	411.61	78.98
2024	19	234.75	100
2023	86	883.81	100
2022	61	516.12	100
2021	33	201.6	46.96
2020	0	0	100

Published record details

Reference: SVT01893
Location: Amber from Alfreton Brook to Derwent
Coordinates: 53.05775, -1.42702
Watercourse: Hartshay Brook
Sewerage company: Severn Trent Water
Asset type: Storm tank at WwTW
Permit reference: T/41/45580/R
Discharge grid reference: SK3850051320
Reporting years: 2025, 2024, 2023, 2022, 2021, 2020
Catchment: Amber from Alfreton Brook to Derwent

Location

Ripley Sewage Treatment Works
53.05775, -1.42702

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

Ripley - Amber Heights (SSO)0.5 km Pentrich Sps0.8 km Padley Hall CSO1.1 km Toll Road Combined Sewer Overflow1.1 km Ripley Mount Pleasant CSO1.3 km

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