Sewage Tank Cleaning

Royston (Carlton-Shaw Lane): sewage overflow history

Review available Environment Agency annual monitoring returns for Royston (Carlton-Shaw Lane). 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

2020

2021

2022

2023

2024

2025

Year	Counted spills	Total spill duration (hours)	Monitor operation (%)
2025	1	2.25	99.99
2024	11	24.75	99.92
2023	9	25.25	99.85
2022	4	11.5	99.97
2021	7	14.25	99.65
2020	5	16.74	99.08

Published record details

Reference: YWS01458
Location: Cudworth Dyke from Source to River Dearne
Coordinates: 53.58685, -1.43061
Watercourse: Shaw Dyke
Sewerage company: Yorkshire Water
Asset type: Storm discharge at pumping station
Permit reference: WRA7675
Discharge grid reference: SE3779010180
Reporting years: 2025, 2024, 2023, 2022, 2021, 2020
Catchment: Cudworth Dyke from Source to River Dearne

Location

Royston (Carlton-Shaw Lane)
53.58685, -1.43061

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

Pools Lane CSO0.8 km Laithes Lane CSO1.4 km Church Hill CSO1.5 km Cudworth Sps1.5 km Meadow Crescent CSO1.6 km

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