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Sheffield

Polluted by sewage 3,132 times in 2025 lasting 8,946 hours - That's 1.04 years!

Monitoring fell below 50% in some locations so could be more

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

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Totals for Sheffield in 2025

120 Sites polluted by Yorkshire Water
3,132 sewage dumps
8,946 hours duration
That's 12.43 months. On average 8.6 times a day

Change Over Time

Constituency for Sheffield

Nearby Constituencies

Waterways in Sheffield

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Sheffield 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 3 of the total 146 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 Don BLACKBURN MEADOWS STW 83 1,192 100
Yorkshire Water River Don HIGH BRIDGE HILLSBOROUGH CSO 80 508 99.8
Yorkshire Water River Sheaf MILLHOUSES PARK CSO 90 490 100
Yorkshire Water River Rother WOODHOUSE MILL WWTW 69 488 100
Yorkshire Water Graves Park Beck FRASER DRIVE SPS 53 383 99.8
Yorkshire Water Car Brook CATCLIFFE ROAD CSO 32 331 100
Yorkshire Water Bagley Dyke OWLER LANE CSO 73 290 100
Yorkshire Water Todd Hole Dike/Mill Stream HERRIES ROAD CSO 71 263 100
Yorkshire Water River Rother SHEFFIELD ROAD KILMARSH CSO 41 229 100
Yorkshire Water River Rivelin RIVELIN VALLEY 3 CSO 56 213 99.9
Yorkshire Water Don TINSLEY CSO 96 190 86
Yorkshire Water River Rother RETFORD RD RECREATION GROUND 3 CSO 53 185 100
Yorkshire Water Shirtcliff Brook GLENHOLME ROAD CSO 41 185 100
Yorkshire Water Porter Brook HANGINGWATER ROAD CSO 55 180 100
Yorkshire Water River Rother RETFORD ROAD CSO 19 175 100
Yorkshire Water Firth Park Stream VICKERS ROAD CSO 57 148 100
Yorkshire Water River Don BROMPTON ROAD CSO 59 146 99.9
Yorkshire Water River Don LANGSETT ROAD CSO 36 137 100
Yorkshire Water Meers Brook LITTLE LONDON ROAD CSO 45 122 100
Yorkshire Water Sheffield Lane Dike DEERLANDS AVENUE 178 NO 2 CSO 41 121 100
Yorkshire Water Bagley Dike NORWOOD ROAD NO2 CSO 42 114 93.8
Yorkshire Water River Sheaf LEYBURN ROAD SHEFFIELD NO2 CSO 30 113 100
Yorkshire Water Shirtcliff Brook BRAMLEY PARK CLOSE CSO 37 105 100
Yorkshire Water River Loxley WATERSMEET ROAD NO1 CSO 47 104 100
Yorkshire Water Porter Brook STALKER WALK NO 2CSO 42 99 99.8
Yorkshire Water River Sheaf SSO IN BROADFIELD ROAD, SHEFFIELD 24 91 99.7
Yorkshire Water River Rivelin GLEN BRIDGE COMBINED SEWER OVERFLOW 36 85 99.3
Yorkshire Water River Moss BIRCHES LANE SPS 31 81 100
Yorkshire Water Shire Brook RAINBOW AVENUE SPS 8 79 100
Yorkshire Water Porter Brook WHITELEY WOODS CSO 27 78 100
Yorkshire Water Car Brook PRINCE OF WALES PUBLIC SEWER 44 76 100
Yorkshire Water River Sheaf SHEAF BANK COMBINED SEWER OVERFLOW 33 73 99.2
Yorkshire Water Short Brook THE MILL NO 2 CSO 31 72 100
Yorkshire Water Porter Brook SLAYLEIGH LANE CSO 32 68 100
Yorkshire Water River Sheaf EAST COWICK SEWAGE PUMPING STATION 24 67 99.8
Yorkshire Water Blackburn Brook DEEP LANE STORM SEWER OVERFLOW 21 66 99.9
Yorkshire Water River Sheaf ABBEYDALE ROAD 62 NO2 CSO 7 65 100
Yorkshire Water Shire Brook ALPORT ROAD CSO 35 62 95.6
Yorkshire Water Meers Brook Culverted RUSHDALE ROAD CSO 32 61 97.9
Yorkshire Water Kirkbridge Dike DARNALL ROAD CSO 20 60 42.5
Yorkshire Water River Sheaf LITTLE LONDON ROAD CSO 32 54 96.8
Yorkshire Water River Don BACON LANE CSO 34 53 100
Yorkshire Water Shire Brook SEAGRAVE CRESCENT 2 CSO 27 52 100
Yorkshire Water River Loxley HILL BRIDGE CSO 33 51 84
Yorkshire Water Bagley Dike NORTHERN GENERAL HOSPITAL CSO 19 51 99.9
Yorkshire Water River Sheaf GRANVILLE ROAD STORM SEWAGE OVERFLW 26 51 100
Yorkshire Water Car Brook POOLE ROAD EAST/2 CSO 32 50 100
Yorkshire Water Shire Brook DYKE VALE ROAD 1 CSO 27 46 92.8
Yorkshire Water Porter Brook ENDCLIFFE PARK CSO 456 44 100
Yorkshire Water Kirk Bridge Dike CORKER BOTTOMS LANE CSO 30 40 100
Yorkshire Water River Loxley WISEWOOD ROAD CSO 26 40 94
Yorkshire Water River Rother RETFORD ROAD NO 2 CSO 24 39 100
Yorkshire Water Hartley Brook Dike SICEY AVENUE CSO 5 33 97.1
Yorkshire Water Car Brook HANDSWORTH ROAD NO 2 CSO 30 32 98.3
Yorkshire Water Meers Brook GLEADLESS ROAD CSO 18 32 100
Yorkshire Water Bagley Dike LONGLEY HALL NO. 2 CSO 19 31 100
Yorkshire Water Hartley Brook Dike HIGH GREAVE NO 2 CSO 14 31 100
Yorkshire Water River Porter ECCLESALL ROAD CSO 25 31 96.7
Yorkshire Water Hartley Brook Dike GODRIC ROAD CSO 16 30 97.3
Yorkshire Water River Drone GREENHILL PARK CSO 3 30 100
Yorkshire Water Porter Brook YORKSHIRE WATER SERVICES LTD, DETEN 4 27 93.5
Yorkshire Water River Drone GREENHILL PARK PAVILLION CSO 3 27 100
Yorkshire Water Blackburn Brook BUTTERTHWAITE ROAD CSO 17 26 100
Yorkshire Water River Rother WHITEHALL LANE CSO 7 25 99.3
Yorkshire Water Orgreave Common Drain RETFORD ROAD ORRGREAVE NO 2 CSO 26 24 100
Yorkshire Water Car Brook GREENLAND ROAD CSO 21 23 99.8
Yorkshire Water River Don CRICKET INN CRESCENT CSO 6 23 47.4
Yorkshire Water River Don BURGOYNE ROAD CSO 21 22 94.5
Yorkshire Water Graves Park Beck ARCHER ROAD NO 2 CSO 6 22 100
Yorkshire Water River Moss ECKINGTON CSO 22 21 100
Yorkshire Water Shire Brook CARR FORGE ROAD CSO 23 20 100
Yorkshire Water River Sheaf WOODSEATS ROAD 2 CSO 8 19 96.7
Yorkshire Water Blackburn Brook FIFE STREET CSO 4 19 53.8
Yorkshire Water Sheffield Lane Dike HARTLEY BROOK ROAD CSO 15 18 100
Yorkshire Water River Rother TULIP TREE CLOSE CSO 10 13 62.4
Yorkshire Water River Loxley HOLME LANE CSO 16 12 100
Yorkshire Water Firth Park Stream FAIRTHORN ROAD NO 2 CSO 13 12 98.9
Yorkshire Water River Don CARLISLE STREET ROUNDABOUT CSO 17 10 77.6
Yorkshire Water Shire Brook HASTILAR ROAD SOUTH CSO 15 10 100
Yorkshire Water Oak Brook RIVERDALE ROAD NO 2 CSO 10 9 100
Yorkshire Water Porter Brook BROOMGROVE ROAD CSO 11 8 99.9
Yorkshire Water River Sheaf ST MARY'S ROAD CSO 5 8 100
Yorkshire Water Shire Brook NORMANTON SPRING CSO 10 8 93.9
Yorkshire Water River Sheaf OLIVE GROVE DEPOT CSO 12 7 100
Yorkshire Water Porter Brook BROCCO BANK NO 2 CSO 8 7 100
Yorkshire Water Shire Brook BEIGHTON STW 11 7 100
Yorkshire Water River Rother GREENGATES LANE CSO 8 6 100
Yorkshire Water River Sheaf AIZLEWOOD ROAD CSO 7 6 100
Yorkshire Water Firth Park Stream FIRTH PARK ROAD NO 2 CSO 12 5 82.6
Yorkshire Water River Loxley HOLME LANE SYPTE CSO 8 4 99.9
Yorkshire Water Shire Brook In Culvert DYKE VALE ROAD CSO 7 4 99.1
Yorkshire Water Car Brook GREENLAND WAY CSO 8 4 86.3
Yorkshire Water Duke Of Norfolk'S Culvert CARLISLE STREET 129 CSO 9 3 50
Yorkshire Water River Don CARLISLE STREET ROUNDABOUT CSO 10 3 100
Yorkshire Water Moss RIDGEWAY WELL CSO 5 2 100
Yorkshire Water Shirtcliff Brook BRUNSWICK PRIMARY SCHOOL CSO 7 2 100
Yorkshire Water Bagley Dyke DUNMOW ROAD CSO 1 2 99.7
Yorkshire Water Car Brook PRINCE OF WALES ROAD 2 CSO 8 2 100
Yorkshire Water Shire Brook BIRLEY VALE COMBINED SEWER OVERFLOW 20 2 100
Yorkshire Water Shirtcliff Brook HORSEWOOD ROAD CSO 1 2 60
Yorkshire Water Moss MARKET STREET CS0 6 1 100
Yorkshire Water River Don BURNABY CRESCENT CSO 3 1 100
Yorkshire Water River Sheaf SMITHY WOOD CRESCENT CSO 2 1 99.8
Yorkshire Water Clvrt Shire Brook SHEFFIELD ROAD WOODHOUSE NO 2 CSO 4 1 100
Yorkshire Water Blackburn Brook NEWMAN DRIVE CSO 5 1 99.3
Yorkshire Water Porter Brook STUMPERLOWE ROAD CSO 4 1 100
Yorkshire Water Car Brook BOWDEN HOWSTEAD NO 2 CSO 5 1 75
Yorkshire Water Sheffield Lane Dike BARNSLEY ROAD CSO 3 1 100
Yorkshire Water Shire Brook DELVES ROAD NO 2 CSO 4 1 100
Yorkshire Water River Loxley RUDYARD ROAD CSO 3 0 99.7
Yorkshire Water Moss PRIMARY SCHOOL CSO 1 0 99.8
Yorkshire Water Blackburn Brook WHEEL LANE CSO 2 0 100
Yorkshire Water Sheffield Lane Dike DEERLANDS AVENUE 177 CSO 1 0 100
Yorkshire Water River Sheaf GLEADLESS ROAD HEELEY 2 0 100
Yorkshire Water Handsworth Beck HIGHFIELD LANE ORGREAVE SPS 1 0 100
Yorkshire Water Shirtcliff Brook WOODHOUSE SEWER NETWORK - 3 CSOS 1 0 99.6
Yorkshire Water River Moss ROTHERSIDE ROAD CSO 1 0 60
Yorkshire Water Hartley Brook Dike HARTLEY BROOK AVENUE CSO 1 0 100
Yorkshire Water River Don PARKSIDE ROAD CSO 1 0 100
Yorkshire Water Kirk Bridge Dike ATTERCLIFFE HILL CSO 1 0 100
Yorkshire Water Moss SWAN INN CSO 0 0 96.8
Yorkshire Water Blackburn Brook BUTTERTHWAITE LANE CSO 0 0 100
Yorkshire Water Rother EAST COWICK SEWAGE PUMPING STATION 0 0 100
Yorkshire Water Clvrt River Don CATCHBAR LANE CSO 0 0 99.9
Yorkshire Water Culv River Don CLAYWHEELS LANE CSO 0 0 93.3
Yorkshire Water River Don DUDLEY ROAD CSO 0 0 100
Yorkshire Water River Don GILPIN STREET DVISA A22 CSO 0 0 100
Yorkshire Water Bagley Dyke GODDARD HALL ROAD CSO 0 0 100
Yorkshire Water River Don ALMA STREET SHEFFIELD CSO 0 0 99.5
Yorkshire Water Porter Brook ENDCLIFFE VALE ROAD CSO 0 0 100
Yorkshire Water River Don WAINGATE CSO 0 0 100
Yorkshire Water Porter Brook BELGRAVE ROAD WEST CSO 0 0 97.5
Yorkshire Water Porter Brook SNAITHING LANE CSO 0 0 100
Yorkshire Water Porter Brook SNAITHING PARK ROAD CSO 0 0 99.9
Yorkshire Water River Sheaf FRASER ROAD CSO 0 0 96
Yorkshire Water River Sheaf WOODSEATS ROAD 1 CSO 0 0 6.6
Yorkshire Water Ochre Dyke ARMSTEAD ROAD CSO 0 0 100
Yorkshire Water Blackburn Brook ASLING ROAD CSO 0 0 94
Yorkshire Water River Don ATTERCLIFFE COMMON CSO 0 0 100
Yorkshire Water River Don EFFINGHAM ROAD CSO 0 0 100
Yorkshire Water River Don EFFINGHAM STREET CSO 0 0 100
Yorkshire Water River Don FURNIVAL ROAD CSO 0 0 100
Yorkshire Water River Rother JOHN CALVERT LANE CSO 0 0 99.3
Yorkshire Water River Don MEADOWHALL WAY NO.2 CSO 0 0 97.7
Yorkshire Water Ochre Beck QUEENS ROAD BEIGHTON CSO 0 0 100
Yorkshire Water River Don VULCAN ROAD CSO 0 0 100

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.

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Analysing sewage pollution by the Water Industry

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