Tatton - Live Sewage

Polluted by sewage 4,717 hours in 2026 , monitoring offline 2,854 hours , potential overflows 1,599 hours so far..

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

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Tatton 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 Tatton in 2026

Sewage4,717 hours
Monitoring offline2,854 hours
Potential pollution1,599 hours
Storm overflows102

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Daily Data

Jan - 247 hours
Feb - 1,157 hours , 1 potential
Mar - 515 hours , 281 potential
Apr - 44 hours , 518 potential
May - 461 hours , 1 potential
Jun - 720 hours , 720 offline
Jul - 511 hours , 601 offline
Aug - 465 hours , 276 potential
Sept - 207 hours , 516 potential
Oct - 386 hours , 2 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities PLUMLEY WwTW Peover Eye 92 1,596h 34m 42 h
United Utilities Town Lane CSO Mobberley Brook Rv Bollin 79 481h 34m 4 h
United Utilities KNUTSFORD WwTW Birkin Brook 54 477h 7m 2,849 h
United Utilities ALDERLEY EDGE WwTW Whitehall Brook 69 438h 57m 483 h
United Utilities MOBBERLEY WwTW Mobberley Brook 43 271h 18m -
United Utilities WILMSLOW WwTW River Dean 40 239h 20m -
United Utilities Ollershaw Lane PS Witton Brook 19 207h 56m -
United Utilities Hale Storm Tanks and WwPPS River Bollin 27 181h 14m -
United Utilities Alderley Edge WwTW CSO MAC0174 Carr Brook 42 132h 26m -
United Utilities WILMSLOW WwTW River Dean 35 103h 49m -
United Utilities Dane Bank Road CSO Slitten Brook 48 78h 44m -
United Utilities Hale Storm Tanks and WwPPS River Bollin 32 53h 42m -
United Utilities HIGH LEGH WwTW Agden Brook 5 52h 50m 796 h
United Utilities Rear of No. XXX Bridgewater Street CSO Slitten Brook 34 38h 44m 24 h
United Utilities Sandle Bridge Wastewater Network PS Pedley Brook 4 38h 26m -
United Utilities Rear of Knowle House CSO River Dean 23 35h -
United Utilities MOBBERLEY WwTW Mobberley Brook 32 29h 4m -
United Utilities CHANCEL LANE CSO River Bollin 32 28h 16m -
United Utilities Ollerton PS Marthall Brook 6 25h 7m -
United Utilities St Johns Road CSO Birkin Brook Via Sws 17 23h 52m -
United Utilities Middlewich Road/Parkfield Road CSO River Dane Via Sws 30 23h 50m 5 h
United Utilities Sproston WWTW River Croco 18 23h 2m -
United Utilities Tabley WWTW Tabley Brook 7 22h 26m -
United Utilities Bexton Road CSO Serpentine Water 19 18h 32m -
United Utilities Fulshaw Cross CSO Whitehall Brook Via Sws 22 17h 44m -
United Utilities Hoo Green WwTW Tabley Brook 12 11h 20m 144 h
United Utilities Sow Brook PS Sow Brook 3 7h 58m -
United Utilities NETHER PEOVER WwTW Crow Brook 1 7h 22m -
United Utilities Rear 237 Runcorn Road CSO Trent And Mersey Canal 12 7h -
United Utilities OWLEY WOOD ROAD CSO River Weaver 15 6h 42m 24 h
United Utilities Anderton Field No. 28 Marbury Brook 9 6h 26m -
United Utilities Knutsford Main PS Moor Pool 4 6h 24m 48 h
United Utilities Eagle Brow CSO (489KT) River Mersey 4 5h 16m -
United Utilities The Wilmslow Park Road CSO Whitfield Brook 10 4h 15m 2 h
United Utilities Comberbach PS Kid 3 4h 8m -
United Utilities Dean Road CSO River Dean 10 3h 8m 2 h
United Utilities QUARRY BANK MILL CSO River Bollin 5 2h 12m 2 h
United Utilities GREEN DRAGON HOTEL CSO River Bollin 4 1h 56m 0 h
United Utilities THE CARRS CSO River Bollin 2 1h 20m -
United Utilities Hawthorn Lane Clvrt'D River Bollin 3 0h 46m 1 h
United Utilities Oughtrington Lane CSO Bridgewater Canal 1 0h 30m -
United Utilities Woodlands Grove CSO Trent 2 0h 20m -
United Utilities 42 Runcorn Road CSO Weaver Navigation 1 0h 18m 0 h
United Utilities Wilmslow Park South Combined Sewer Overflow (Site ID 272YI) (MAC0047) River Bollin 1 0h 16m -
United Utilities Fulshaw Cross CSO Whitehall Brook Via Sws 0 0h -
United Utilities Middlewich Road/Parkfield Road CSO River Dane Via Sws 0 0h -
United Utilities GREEN DRAGON HOTEL CSO River Bollin 0 0h -
United Utilities Manchester Road (Lostock) CSO Wincham Brook 0 0h -
United Utilities Town Lane CSO Mobberley Brook Rv Bollin 0 0h -
United Utilities Mobberley Road Combined Sewer Overflow (Site ID 272GZ) (MAC0122) Birkin Brook 0 0h -
United Utilities Poplar Cottages CSO Kid Brook Via Sws 0 0h -
United Utilities Rear of 68 Whitbarrow Road M/Chester Ship Canal 0 0h -
United Utilities Comberbach PS Kid 0 0h -
United Utilities The Wilmslow Park Road CSO Whitfield Brook 0 0h -
United Utilities Reeman Court (Manhole H4) River Dean 0 0h 0 h
United Utilities ALDERLEY EDGE WwTW Whitehall Brook 0 0h -
United Utilities Sow Brook PS Sow Brook 0 0h -
United Utilities Manchester Road (Lostock) CSO Wincham Brook 0 0h -
United Utilities Bexton Road CSO Serpentine Water 0 0h -
United Utilities Sagars Rd CSO (279DF) Dean Brook 0 0h -
United Utilities Hawthorn Lane Clvrt'D River Bollin 0 0h -
United Utilities Dean Road CSO River Dean 0 0h -
United Utilities Hale Storm Tanks and WwPPS River Bollin 0 0h -
United Utilities Reeman Court (Manhole H4) River Dean 0 0h -
United Utilities Ollerton PS Marthall Brook 0 0h -
United Utilities Rear 237 Runcorn Road CSO Trent And Mersey Canal 0 0h -
United Utilities MOBBERLEY WwTW Mobberley Brook 0 0h -
United Utilities Opp River Street CSO River Bollin 0 0h -
United Utilities St Johns Road CSO Birkin Brook Via Sws 0 0h -
United Utilities Poplar Cottages CSO Kid Brook Via Sws 0 0h -
United Utilities PLUMLEY WwTW Peover Eye 0 0h -
United Utilities MOBBERLEY WwTW Mobberley Brook 0 0h -
United Utilities Sproston WWTW River Croco 0 0h -
United Utilities Knutsford Main PS Moor Pool 0 0h -
United Utilities CHANCEL LANE CSO River Bollin 0 0h -
United Utilities NETHER PEOVER WwTW Crow Brook 0 0h -
United Utilities Dane Bank Road CSO Slitten Brook 0 0h -
United Utilities Alderley Edge WwTW CSO MAC0174 Carr Brook 0 0h -
United Utilities Eagle Brow CSO (489KT) River Mersey 0 0h -
United Utilities Rear of No. XXX Bridgewater Street CSO Slitten Brook 0 0h -
United Utilities Mobberley Road Combined Sewer Overflow (Site ID 272GZ) (MAC0122) Birkin Brook 0 0h -
United Utilities Tabley WWTW Tabley Brook 0 0h -
United Utilities Anderton Field No. 28 Marbury Brook 0 0h -
United Utilities Rear of 68 Whitbarrow Road M/Chester Ship Canal 0 0h 1 h
United Utilities Wilmslow Park South Combined Sewer Overflow (Site ID 272YI) (MAC0047) River Bollin 0 0h -
United Utilities Sandle Bridge Wastewater Network PS Pedley Brook 0 0h -
United Utilities KNUTSFORD WwTW Birkin Brook 0 0h -
United Utilities OWLEY WOOD ROAD CSO River Weaver 0 0h -
United Utilities WILMSLOW WwTW River Dean 0 0h -
United Utilities QUARRY BANK MILL CSO River Bollin 0 0h -
United Utilities HIGH LEGH WwTW Agden Brook 0 0h -
United Utilities Hoo Green WwTW Tabley Brook 0 0h -
United Utilities Rear of Knowle House CSO River Dean 0 0h -
United Utilities Ollershaw Lane PS Witton Brook 0 0h -
United Utilities WILMSLOW WwTW River Dean 0 0h -
United Utilities 42 Runcorn Road CSO Weaver Navigation 0 0h -
United Utilities Sagars Rd CSO (279DF) Dean Brook 0 0h -
United Utilities Hale Storm Tanks and WwPPS River Bollin 0 0h -
United Utilities THE CARRS CSO River Bollin 0 0h -
United Utilities Woodlands Grove CSO Trent 0 0h -
United Utilities Opp River Street CSO River Bollin 0 0h 17 h
United Utilities Oughtrington Lane CSO Bridgewater Canal 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.