It's a Dirty Business

Watch Channel 4's documentary about the state of the water industry.

Dewsbury and Batley - 2025 Sewage

Polluted by sewage 2,126 hours in 2025 , monitoring offline 25,301 hours , potential overflows 2,270 hours

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

Which Year?

Select Another Constituency

Select the constituency from the drop-down
✔ 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 Dewsbury and Batley for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

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.

Take Action

Your local MP is Iqbal Mohamed (Independent) - Find out more about their interests, donors, and voting at They Work For You

Share this page, post a message, and tell others about the huge problem of sewage pollution across the UK

Daily Data

Jan - 501 hours , 1,030 offline
Feb - 145 hours , 317 potential
Mar - 0 hours , 525 potential
Apr - 0 hours , 1,440 offline
May - 23 hours , 1,611 offline
Jun - 12 hours , 1,440 offline
Jul - 126 hours , 1,985 offline
Aug - 0 hours , 2,232 offline
Sept - 266 hours , 434 potential
Oct - 89 hours , 744 potential
Nov - 537 hours , 248 potential
Dec - 422 hours , 3,424 offline
We need your support!

Thank you so much to everyone who contributed to the site in 2025 to keep it running. We do rely on your contributions! Developing and running a website costs real money.
Please consider a one-off or small recurring donation.

Donate Now

Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Yorkshire Water SPENBOROUGH/SPS River Calder And River Spen 67 845 h 40m -
Yorkshire Water THORNHILL DEWSBURY/1 CSO River Calder 37 205 h 57m -
Yorkshire Water RAVENSBRIDGE IND EST/CSO River Calder 25 204 h 47m 1,413 h
Yorkshire Water FORGE LANE DEWSBURY/CSO Calder 39 178 h 20m 61 h
Yorkshire Water WARWICK ROAD/NO 2 CSO Batley Beck 59 161 h 31m -
Yorkshire Water RAVENS HUDDFLD RD/CSO River Calder 28 102 h 53m -
Yorkshire Water DEWSBURY MOOR/CSO River Spen 32 70 h 40m -
Yorkshire Water THORNHILL DEWSBURY/2 CSO River Calder 18 65 h 21m -
Yorkshire Water FIR COTTAGE/CSO River Calder 6 49 h 42m -
Yorkshire Water COMBS HILL/NO 2 CSO Calder 8 49 h 31m 1,427 h
Yorkshire Water SCOUTHILL R D/CSO Not Matched In Ea Consents Database 8 39 h 24m -
Yorkshire Water BREWERY LANE/CSO Culverted River Calder 14 32 h 37m -
Yorkshire Water TIMOTHY LANE/CSO Howley Beck 5 30 h 23m -
Yorkshire Water RAILWAY ST DEWSBURY/CSO River Calder 10 27 h 57m 2,349 h
Yorkshire Water WOOD STREET DEWSBURY/CSO Dewsbury Beck 7 22 h 1m -
Yorkshire Water CALDER BANK ROAD/CSO River Calder 3 13 h 25m -
Yorkshire Water UPPER ROAD/NO 2 CSO Batley Carr Dyke Culverted 11 9 h 44m -
Yorkshire Water BATLEY GRANGE ROAD/CSO Greenhill Dike Culverted 3 9 h 33m -
Yorkshire Water FLOCKTON PINFOLD LANE/CSO Flockton Beck 2 4 h 59m 481 h
Yorkshire Water GRANGE MOOR/CSO Falhouse Beck 1 1 h 12m -
Yorkshire Water WELL LANE/CSO Batley Beck 2 0 h 41m -
Yorkshire Water SAVILLE TOWN/CSO River Calder 2 0 h 28m -
Yorkshire Water MELTON STREET/CSO Carlinghow Beck 0 0 h -
Yorkshire Water BECKETT NOOK/NO 2 CSO Varies With Outlet 0 0 h -
Yorkshire Water WHITLEY TANK/CSO Howroyd Beck 0 0 h -
Yorkshire Water BATLEY FIELD LANE/CSO Batley Beck 0 0 h -
Yorkshire Water BATLEY MOUNT STREET/CSO Batley Beck 0 0 h -
Yorkshire Water BECKETT NOOK/NO 1 CSO Varies With Outlet 0 0 h 7,340 h
Yorkshire Water FIDDLERS HILL/CSO River Calder 0 0 h 8,536 h
Yorkshire Water MAYMAN LANE/CSO Batley Carr 0 0 h -
Yorkshire Water SYKE ING/NO 2 CSO Chickenley Beck 0 0 h 5,489 h
Yorkshire Water SCOUTHILL/CSO Spen River 0 0 h 472 h

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.