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Pickering Sewage Treatment Works: sewage overflow history (YWS00481)

Review available Environment Agency annual monitoring returns for Pickering 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

106

2020

2021

2022

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	33	112.75	99.95
2024	47	256.25	99.97
2023	84	711.5	99.99
2022	39	98.5	99.87
2021	79	297.75	99.93
2020	106	261.9	99.79

Published record details

Reference: YWS00481
Location: Costa Beck from Source to Pickering Beck
Coordinates: 54.24296, -0.81287
Watercourse: Costa Beck
Sewerage company: Yorkshire Water
Asset type: Storm tank at WwTW
Permit reference: 27/25/0075
Discharge grid reference: SE7746083680
Reporting years: 2025, 2024, 2023, 2022, 2021, 2020
Catchment: Costa Beck from Source to Pickering Beck

Location

Pickering Sewage Treatment Works
54.24296, -0.81287

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

Pickering Sewage Treatment Works0 km Aislaby Sewage Pumping Station1.8 km CSO & Pumping Station2.2 km Outgang Road Sps3.1 km Cuddy Brown Close CSO3.1 km

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