It's a Dirty Business

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Mid Cheshire - 2025 Sewage

Polluted by sewage 2,494 hours in 2025 , monitoring offline 12,991 hours , potential overflows 9,451 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 Mid Cheshire 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 - 889 hours , 519 potential
Feb - 14 hours , 672 potential
Mar - 16 hours , 745 potential
Apr - 14 hours , 720 potential
May - 42 hours , 744 potential
Jun - 52 hours , 724 potential
Jul - 67 hours , 748 potential
Aug - 11 hours , 744 potential
Sept - 290 hours , 746 potential
Oct - 54 hours , 806 potential
Nov - 559 hours , 808 potential
Dec - 481 hours , 1,423 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Meadowbank/Bradford Road PS River Weaver 24 331 h 39m -
United Utilities Meadowbank/Bradford Road PS River Weaver 41 323 h 1m 2 h
United Utilities NORTHWICH WwTW River Weaver 19 183 h 51m -
United Utilities Marlowe Road (Playing Fields) CSO River Dane 51 180 h 44m 0 h
United Utilities WINSFORD WwTW River Weaver 23 139 h 9m -
United Utilities Greenbank Lane CSO Northwich River Weaver 28 99 h 6m -
United Utilities Mere Heath PS Peckmill Bk 17 78 h 21m -
United Utilities WEIR STREET CSO River Weaver 16 71 h 58m 256 h
United Utilities Gas Yard Pumping Station River Croco 22 71 h 43m -
United Utilities Outside 51 Church Street (Davenham) CSO Eldersbriar Brook 39 70 h 40m 95 h
United Utilities 102 Middlewich Road CSO Wade Brook 41 68 h 215 h
United Utilities NORTHWICH WwTW River Weaver 8 65 h 17m -
United Utilities 102 Middlewich Road CSO Wade Brook 16 55 h 54m 87 h
United Utilities Hill Street PS River Weaver 15 55 h 52m -
United Utilities Marlowe Road (Playing Fields) CSO River Dane 14 52 h 28m -
United Utilities Wardle Bridge PS River Croco 19 49 h 53m -
United Utilities WINSFORD WwTW River Weaver 9 48 h 6m -
United Utilities Navigation Road (Northwich) CSO Weaver Navigation 42 47 h 52m 1 h
United Utilities NORTHWICH WwTW River Weaver 10 42 h 30m -
United Utilities MARTON NORTH (Cassia) WwTW Bogart Brook 3 41 h 37m 8,146 h
United Utilities 310 -314 Chester Road CSO Handforth Brook Via Sws 11 29 h 24m 237 h
United Utilities Manora Road (Dane Nurseries) CSO River Dane 23 28 h 52m 0 h
United Utilities Chester Road (Middlewich) WwNPS Wheelock 20 27 h 30m -
United Utilities Winnington Street CSO River Weaver 6 25 h 52m 19 h
United Utilities Off Carlton Road CSO River Dane 27 23 h 2m 11 h
United Utilities Rilshaw Lane PS Course 15 20 h 11m 60 h
United Utilities Barons Quay PS River Weaver 2 18 h 36m -
United Utilities St. Michael's Way Combined Sewer Overflow (Site ID 132TH) (CON0039) River Wheelock Via Sws 20 17 h 50m 31 h
United Utilities Navigation Road (Northwich) CSO Weaver Navigation 12 17 h 44m 1 h
United Utilities Gas Yard Pumping Station River Croco 12 17 h 35m -
United Utilities Wardle Bridge PS River Croco 7 17 h 8m 1 h
United Utilities Off School Lane CSO Weaver Navigation 2 16 h 56m 498 h
United Utilities Outside 51 Church Street (Davenham) CSO Eldersbriar Brook 12 15 h 16m -
United Utilities WINSFORD WwTW River Weaver 12 13 h 55m -
United Utilities Croxton Road (Middlewich No. 5 PS) River Wheelock 2 13 h 48m -
United Utilities Mere Heath PS Peckmill Bk 4 12 h 58m -
United Utilities Greenbank Lane CSO Northwich River Weaver 6 12 h 36m -
United Utilities Rear of XX Meadow Lane CSO Peckmill Brook Via Sws 9 11 h 56m 2,136 h
United Utilities Gas Yard Pumping Station River Croco 10 10 h 8m -
United Utilities 230 London Road CSO River Dane Via Sws 12 9 h 6m 2 h
United Utilities Hill Street PS River Weaver 2 8 h 30m -
United Utilities Chester Road (Middlewich) WwNPS Wheelock 4 6 h 7m -
United Utilities St. Michael's Way Combined Sewer Overflow (Site ID 132TH) (CON0039) River Wheelock Via Sws 6 5 h 32m -
United Utilities WEIR STREET CSO River Weaver 1 5 h 24m -
United Utilities Outside of 90 Queensway CSO River Weaver Via Sws 8 4 h 42m 1,032 h
United Utilities Edward Street (Northwich) CSO Wade Brook 4 3 h 28m 35 h
United Utilities XXX Middlewich Road CSO Wade Brook 4 3 h 14m 0 h
United Utilities Dock Road Sewage PS River Weaver 6 3 h 7m 0 h
United Utilities Off Carlton Road CSO River Dane 5 2 h 24m -
United Utilities Rear of XX Meadow Lane CSO Peckmill Brook Via Sws 3 1 h 54m -
United Utilities SPENCER STREET / DARWIN STREET CSO Weaver Navigation Via Sws 6 1 h 50m 0 h
United Utilities School Lane/Lodge Lane CSO River Weaver 6 1 h 42m 6 h
United Utilities Gas Yard Pumping Station River Croco 1 1 h 40m -
United Utilities WINSFORD WwTW River Weaver 2 1 h 40m -
United Utilities 181 London Road CSO River Dane Via Sws 4 1 h 28m 262 h
United Utilities Off John Street CSO River Weaver Via Culvert 31 1 h 18m 0 h
United Utilities Jack Lane CSO Peckmill Brook 3 0 h 58m 0 h
United Utilities 230 London Road CSO River Dane Via Sws 2 0 h 38m -
United Utilities Jack Lane CSO Peckmill Brook 2 0 h 30m -
United Utilities Castle Street, Northwich River Weaver 1 0 h 10m -
United Utilities School Lane/Lodge Lane CSO River Weaver 3 0 h 6m 2 h
United Utilities Winnington Street CSO River Weaver 1 0 h 4m -
United Utilities Dean Street CSO Culvert Dene Brook Viasws 1 0 h 4m -
United Utilities Manora Road (Dane Nurseries) CSO River Dane 1 0 h 2m -
United Utilities Croxton Road (Middlewich No. 5 PS) River Wheelock 1 0 h 802 h
United Utilities 181 London Road CSO River Dane Via Sws 0 0 h -
United Utilities WHITEGATE WwTW Pettypool Brook 0 0 h -
United Utilities Off School Lane CSO Weaver Navigation 0 0 h 4 h
United Utilities Castle Street, Northwich River Weaver 0 0 h -
United Utilities SPENCER STREET / DARWIN STREET CSO Weaver Navigation Via Sws 0 0 h -
United Utilities WHITEGATE WwTW Pettypool Brook 0 0 h -
United Utilities MARTON NORTH (Cassia) WwTW Bogart Brook 0 0 h 8,438 h
United Utilities XXX Middlewich Road CSO Wade Brook 0 0 h -
United Utilities Edward Street (Northwich) CSO Wade Brook 0 0 h -
United Utilities Northwich Resewerage Scheme River Dane 0 0 h -
United Utilities Church Street CSO Eldersbriar Brook 0 0 h -
United Utilities Alleyway Adjacent to Rear of Peter Street CSO Wade Brook Via Sws 0 0 h -
United Utilities Alleyway Adjacent to Rear of Peter Street CSO Wade Brook Via Sws 0 0 h 2 h
United Utilities Barons Quay PS River Weaver 0 0 h -
United Utilities Dean Street CSO Culvert Dene Brook Viasws 0 0 h -
United Utilities NORTHWICH WwTW River Weaver 0 0 h -
United Utilities Off John Street CSO River Weaver Via Culvert 0 0 h -
United Utilities Rilshaw Lane PS Course 0 0 h -
United Utilities Northwich Resewerage Scheme River Dane 0 0 h -
United Utilities Church Street PS River Weaver 0 0 h -
United Utilities Nantwich Road/Chester Road CSO River Wheelock 0 0 h 38 h
United Utilities Dock Road Sewage PS River Weaver 0 0 h -
United Utilities Church Street PS River Weaver 0 0 h -
United Utilities Outside of 90 Queensway CSO River Weaver Via Sws 0 0 h -
United Utilities 310 -314 Chester Road CSO Handforth Brook Via Sws 0 0 h -
United Utilities Nantwich Road/Chester Road CSO River Wheelock 0 0 h -
United Utilities Church Street CSO Eldersbriar Brook 0 0 h 9 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.