Spen Valley - Live Sewage

Polluted by sewage 900 hours in 2026 , monitoring offline 7,681 hours so far..

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Spen Valley so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

Totals for Spen Valley in 2026

Sewage900 hours
Monitoring offline7,681 hours
Potential pollution0 hours
Storm overflows23

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Daily Data

Jan - 229 hours , 761 offline
Feb - 536 hours , 672 offline
Mar - 21 hours , 744 offline
Apr - 1 hours , 720 offline
May - 24 hours , 744 offline
Jun - 0 hours , 720 offline
Jul - 0 hours , 744 offline
Aug - 19 hours , 759 offline
Sept - 17 hours , 991 offline
Oct - 50 hours , 825 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Yorkshire Water HECKMONDWIKE/NO 2 CSO River Spen 23 243h 55m -
Yorkshire Water MORRISONS CAR PARK/CSO River Spen 45 186h 38m -
Yorkshire Water ST PEG LANE/NO 2 CSO River Spen 25 141h 43m -
Yorkshire Water LISTING MILL FARM/CSO River Spen 41 124h 17m -
Yorkshire Water SPENBOROUGH/SPS River Calder And River Spen 16 78h 16m -
Yorkshire Water BIRKENSHAW/NO 4 CSO Nutter Beck 6 47h 13m -
Yorkshire Water MILTON ROAD/CSO Tbc When Permit Issued 20 31h 22m 10 h
Yorkshire Water EAST BIERLEY/NO 2 CSO Lodge Beck 13 27h 6m 7 h
Yorkshire Water HIGH ST HECKMONDWIK/2 CSO Culverted Spen River 10 6h 55m -
Yorkshire Water CHAPEL LANE/NO 2 CSO River Spen 12 6h 35m -
Yorkshire Water NORTH BIERLEY/CSO Hunsworth Beck 4 3h 27m -
Yorkshire Water BATH ROAD/CSO Tbc When Permit Issued 3 0h 53m -
Yorkshire Water RAIKESWOOD DRIVE/CSO High Royds Beck 2 0h 45m -
Yorkshire Water BIRSTALL/CSO Smithies Beck 2 0h 37m -
Yorkshire Water HIGHTOWN ROAD/NO 2 CSO Syke Beck 1 0h 14m -
Yorkshire Water OLD LANE/NO 2 CSO Wormalds Drain 1 0h 14m -
Yorkshire Water CLIFF HOLLINS LANE/CSO Highroyds Beck 0 0h -
Yorkshire Water BALME ROAD/NO 2 CSO River Spen 0 0h -
Yorkshire Water NEWGATE/CSO River Calder 0 0h 7,145 h
Yorkshire Water BATLEY ROAD/NO 2 CSO River Spen 0 0h 519 h
Yorkshire Water HUNSWORTH LANE/NO 2 CSO Hunsworth Upper Lane Beck 0 0h -
Yorkshire Water WHITEHALL ROAD/CSO River Spen 0 0h -
Yorkshire Water HECK CEMETERY ROAD/2 CSO Unna. Cul. Of Spen River 0 0h -

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

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.