Sewage Tank Cleaning

Middlewich Rd/Parkfield Rd CSO: sewage overflow history

Review available Environment Agency annual monitoring returns for Middlewich Rd/Parkfield Rd CSO. 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

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	56	80	88.46
2024	53	100.53	99.35
2023	73	96.67	100
2022	67	80.47	100
2021	82	234.3	100

Published record details

Reference: UUP01301
Location: Arley Brook (Source to Gale Brook)
Coordinates: 53.25521, -2.49642
Watercourse: River Dane Via Sws
Sewerage company: United Utilities
Asset type: SO on sewer network
Permit reference: 016892279
Discharge grid reference: SJ6697873249
Reporting years: 2025, 2024, 2023, 2022, 2021
Catchment: Arley Brook (Source to Gale Brook)

Location

Middlewich Rd/Parkfield Rd CSO
53.25521, -2.49642

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

Marlowe Road (Playing Fields) CSO0.3 km 102 Middlewich Road CSO0.7 km 197 Middlewich Rd CSO 472E3 Vry00920.7 km Edward Street (Northwich) CSO0.7 km Off Carlton Road CSO0.7 km

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