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Spen Valley - Live Sewage

Polluted by sewage 813 hours in 2026 , monitoring offline 3,316 hours so far..

© OpenStreetMap contributors
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.

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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 , 419 offline
Jun - 0 hours
Jul - 0 hours
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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 18 233h 23m -
Yorkshire Water MORRISONS CAR PARK/CSO River Spen 28 162h 33m -
Yorkshire Water ST PEG LANE/NO 2 CSO River Spen 14 126h 45m -
Yorkshire Water LISTING MILL FARM/CSO River Spen 25 107h 32m -
Yorkshire Water SPENBOROUGH/SPS River Calder And River Spen 10 72h 15m -
Yorkshire Water BIRKENSHAW/NO 4 CSO Nutter Beck 6 47h 13m -
Yorkshire Water MILTON ROAD/CSO Tbc When Permit Issued 13 26h 30m 10 h
Yorkshire Water EAST BIERLEY/NO 2 CSO Lodge Beck 9 25h 11m 7 h
Yorkshire Water HIGH ST HECKMONDWIK/2 CSO Culverted Spen River 7 5h 29m -
Yorkshire Water CHAPEL LANE/NO 2 CSO River Spen 6 3h 44m -
Yorkshire Water NORTH BIERLEY/CSO Hunsworth Beck 3 2h 21m -
Yorkshire Water BIRSTALL/CSO Smithies Beck 1 0h 33m -
Yorkshire Water BALME ROAD/NO 2 CSO River Spen 0 0h -
Yorkshire Water WHITEHALL ROAD/CSO River Spen 0 0h -
Yorkshire Water BATH ROAD/CSO Tbc When Permit Issued 0 0h -
Yorkshire Water OLD LANE/NO 2 CSO Wormalds Drain 0 0h -
Yorkshire Water NEWGATE/CSO River Calder 0 0h 3,299 h
Yorkshire Water HUNSWORTH LANE/NO 2 CSO Hunsworth Upper Lane Beck 0 0h -
Yorkshire Water HIGHTOWN ROAD/NO 2 CSO Syke Beck 0 0h -
Yorkshire Water HECK CEMETERY ROAD/2 CSO Unna. Cul. Of Spen River 0 0h -
Yorkshire Water BATLEY ROAD/NO 2 CSO River Spen 0 0h -
Yorkshire Water CLIFF HOLLINS LANE/CSO Highroyds Beck 0 0h -
Yorkshire Water RAIKESWOOD DRIVE/CSO High Royds Beck 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

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.