Sewage Tank Cleaning

Leyland Waste Water Treatment Works: sewage overflow history

Review available Environment Agency annual monitoring returns for Leyland Waste Water 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

2021

2022

104

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	56	399.17	100
2024	89	578.39	99.75
2023	104	924.5	98.77
2022	0	0	99.91
2021	0	0	100

Published record details

Reference: UUP01138
Location: Lostock DS Farington Weir
Coordinates: 53.68209, -2.72593
Watercourse: River Lostock
Sewerage company: United Utilities
Asset type: Storm tank at WwTW
Permit reference: 017060018
Discharge grid reference: SD5215020870
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Lostock DS Farington Weir

Location

Leyland Waste Water Treatment Works
53.68209, -2.72593

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

74 Slater Lane (Leyland) CSO0.7 km Leyland Lane (Seven Stars) CSO1 km Cowling Lane Leyland Lane CSO 401Pw1.3 km Leadale Road CSO 402Cq1.6 km Towngate/Fox Lane CSO1.9 km

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