Sewage Tank Cleaning

Permit applied for: sewage overflow history (YWS00913)

Review available Environment Agency annual monitoring returns for Permit applied for. 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

111

2023

142

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	69	714.25	99.97
2024	142	2,624	99.96
2023	111	1,562.25	100

Published record details

Reference: YWS00913
Location: Derwent from River Rye to Kirkham
Coordinates: 54.07895, -0.84293
Watercourse: Permit applied for
Sewerage company: Yorkshire Water
Asset type: Storm tank at WwTW
Permit reference: Permit applied for
Discharge grid reference: SE7580065400
Reporting years: 2025, 2024, 2023
Catchment: Derwent from River Rye to Kirkham

Location

Permit applied for
54.07895, -0.84293

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

Firby Sewage Treatment Works1.3 km Crambe STW2.4 km Howsham Sewage Treatment Works3.3 km Permit applied for4.5 km Acklam Sewage Treatment Works4.6 km

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