Sewage Tank Cleaning

Ainsdale Wastewater Treatment Works: sewage overflow history (UUP00088)

Review available Environment Agency annual monitoring returns for Ainsdale Wastewater Treatment Works. Compare reported spill counts, total duration and monitor operation by year, with source details and gaps in the series identified.

← All records

Annual monitoring returns

2021

2022

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	4	6.02	95.26
2024	1	0.02	99.9
2023	4	15.15	100
2022	1	0.09	100
2021	45	658.61	100

Published record details

Reference: UUP00088
Location: Chisnall Brook
Coordinates: 53.59205, -3.02837
Watercourse: Fine Janes Brook
Sewerage company: United Utilities
Asset type: Storm tank at WwTW
Permit reference: 016930486
Discharge grid reference: SD3203011100
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Chisnall Brook

Location

Ainsdale Wastewater Treatment Works
53.59205, -3.02837

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

Ainsdale Wastewater Treatment Works0 km O/S 65 Dover Road CSO 381P82.3 km Opposite No.36 Carr Lane CSO2.3 km Opposite No 7 Cromer Road CSO2.3 km Rear No.1 Hastings Road CSO 381P82.3 km

Sewage Tank Cleaning

Need help with sewage at a property or site?

Describe the affected area and the type of assistance you are seeking, such as sewage removal, tank cleaning or pump station cleaning. Include any information already available about the source of the problem.

Discuss sewage removal