Top of the Poops | Place | Ossett | Polluted by Yorkshire Water

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Totals for Ossett in 2025

11 Sites polluted by Yorkshire Water

288 sewage dumps

1,507 hours duration

That's 2.09 months. 5.5 times a week, on average

Change Over Time

Constituency for Ossett

Nearby Constituencies

Waterways in Ossett

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Ossett in 2025. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this place 1 of the total 11 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Yorkshire Water	River Calder	MITCHELL LAITHES WWTW	61	523	100
Yorkshire Water	River Calder	ALBION MILLS CSO	52	376	100
Yorkshire Water	River Calder	OSSETT SPA SPS AND STORM TANKS	32	244	99.4
Yorkshire Water	River Calder	HEALEY ROAD OSSETT CSO	58	152	98.1
Yorkshire Water	Spring Mill Beck	BAPTISTS LANE CSO	34	97	87.8
Yorkshire Water	Pildacre Mill Beck	PILDACRE LANE CSO	28	94	100
Yorkshire Water	River Calder	SWALLOWS NEST CSO	1	8	46
Yorkshire Water	Spring Mill Beck	OSSETT TOWNGATE NO 2 CSO	11	6	100
Yorkshire Water	Clvrt Springfield Beck	OSSETT WAKEFIELD ROAD 2 CSO	7	3	100
Yorkshire Water	Bushy Beck	GAWTHORPE MAIN STREET CSO	3	1	100
Yorkshire Water	Chickenley Beck	SYKE ING NO 2 CSO	1	0	98.5

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

Analysing sewage pollution by the Water Industry

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© 2020-2025 Top-Of-The-Poops CC-BY-SA 4.0,
© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

Some data reproduced under Open Government Licence

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