It's a Dirty Business

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Rotherham - 2025 Sewage

Polluted by sewage 4,604 hours in 2025 , monitoring offline 11,919 hours , potential overflows 3,960 hours

© 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 Rotherham 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.

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Daily Data

Jan - 1,088 hours , 200 potential
Feb - 82 hours , 685 potential
Mar - 0 hours , 850 potential
Apr - 109 hours , 840 potential
May - 18 hours , 201 potential
Jun - 31 hours , 26 potential
Jul - 196 hours , 616 potential
Aug - 31 hours , 2 potential
Sept - 364 hours , 32 potential
Oct - 172 hours , 56 potential
Nov - 1,293 hours , 359 potential
Dec - 1,214 hours , 63 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Yorkshire Water GRAFTON BRIDGE/CSO River Don 93 1,272 h 38m -
Yorkshire Water EASTWOOD IND ESTATE/CSO River Don 75 336 h 21m -
Yorkshire Water CRINOLENE HOUSE/CSO Don Via Surface Water Sewer 27 252 h 31m 1,097 h
Yorkshire Water SCROOBY STREET/CSO Greasbrough Dyke 38 209 h 21m -
Yorkshire Water MIDDLE LANE SOUTH/CSO Tbc When Permit Issued 31 202 h 7m 376 h
Yorkshire Water BLACKBURN MEADOWS/STW River Don 17 172 h 41m -
Yorkshire Water MASBROUGH STREET/CSO Holmes Tail Goit 37 168 h 27m 25 h
Yorkshire Water FITZWILLIAM CENTRE/CSO River Don 45 152 h 15m -
Yorkshire Water ALL SAINTS SQUARE/CSO Varies With Outlet 41 142 h 1m -
Yorkshire Water UPPER MILLGATE/CSO Not Matched In Ea Consents Database 38 140 h 25m 370 h
Yorkshire Water CLIFTON PARK/CSO River Don 24 125 h 39m 120 h
Yorkshire Water LONG LANE/STW River Rother 16 116 h 44m 299 h
Yorkshire Water BRINSWORTH/CSO River Rother 38 106 h 11m -
Yorkshire Water GREASBROUGH/CSO Ochre Dyke 36 99 h 59m -
Yorkshire Water ELDERTREE ROAD/NO 2 CSO Blackburn Brook 23 96 h 39m -
Yorkshire Water TREETON MILL LANE/CSO River Rother 24 95 h 47m 61 h
Yorkshire Water BRINSWORTH STREET/CSO Holmes Tail Goit 15 91 h 6m -
Yorkshire Water VALLEY ROAD NORTH/CSO Herringthorpe Beck 27 85 h 45m -
Yorkshire Water CLAREMONT ST ROTHERHM/CSO Holmes Tail Goit 5 82 h 44m 1,452 h
Yorkshire Water DALTON BROOK/CSO Dalton Brook 14 75 h 37m -
Yorkshire Water THORPE HESLEY/CSO Thorpe Dyke 31 73 h 53m -
Yorkshire Water AUGHTON/CSO Ulley Brook 16 71 h 50m -
Yorkshire Water TREETON/CSO River Rother 10 64 h 44m -
Yorkshire Water WATER LANE ROTHERHAM/CSO River Don 7 54 h 45m 3,770 h
Yorkshire Water TREETON LANE/CSO River Rother 9 42 h 59m 60 h
Yorkshire Water DROPPINGWELL ROAD/CSO Oakley Bottom Dike 22 39 h 43m -
Yorkshire Water FOSTERS GARAGE/CSO River Don 8 39 h 30m -
Yorkshire Water UNION STREET/CSO River Mas Culverted 21 31 h 58m -
Yorkshire Water WHITEHILL LANE/CSO River Rother 6 24 h 54m -
Yorkshire Water RAWMARSH ROAD/CSO River Don 8 23 h 13m -
Yorkshire Water CLIFTON LORD STREET/CSO Herringthorpe Beck 11 19 h 43m -
Yorkshire Water VALLEY ROAD SOUTH/CSO Herringthorpe Beck 12 19 h 37m -
Yorkshire Water RETFORD RD ORGREAVE/2 CSO Orgreave Common Drain 15 17 h 52m -
Yorkshire Water PSALTERS LANE HOLMES/CSO Varies With Outlet 2 13 h 39m 233 h
Yorkshire Water JORDAN/CSO Holmes Goit 11 12 h 50m -
Yorkshire Water HESLEY LANE/CSO Thorpe Dyke 5 11 h 15m -
Yorkshire Water BLACKBURN/CSO Blackburn Brook 4 9 h 25m -
Yorkshire Water CANKLOW/CSO River Rother 6 7 h 35m -
Yorkshire Water THE MALTINGS/CSO River Rother 0 0 h -
Yorkshire Water HIGHFIELD LN ORGREAVE/CSO Handsworth Beck 0 0 h -
Yorkshire Water MARSH STREET/CSO River Don 0 0 h -
Yorkshire Water DALTON PARVA/CSO Dalton Brook 0 0 h 5,225 h
Yorkshire Water BRADGATE LANE/NO 2 CSO River Moss 0 0 h 2,787 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.