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Chester North and Neston - 2025 Sewage

Polluted by sewage 1,835 hours in 2025 , monitoring offline 9 hours

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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 Chester North and Neston 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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Constituencies near Chester North and Neston

Daily Data

Jan - 204 hours
Feb - 13 hours
Mar - 23 hours
Apr - 24 hours , 8 offline
May - 136 hours
Jun - 114 hours
Jul - 52 hours , 0 offline
Aug - 14 hours
Sept - 313 hours
Oct - 41 hours
Nov - 569 hours
Dec - 324 hours
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Dwr Cymru Welsh Water Station Road Neston Storm Overflow Dee Estuary 66 354 h 15m -
Dwr Cymru Welsh Water Neston WwTW Storm Overflow Stanney Brook 51 270 h 45m -
United Utilities HOOTON ROAD CSO Dibbinsdale Brook 30 239 h 9 h
Dwr Cymru Welsh Water Marshlands Road Little Neston Storm Overflow River Dee 40 227 h 55m -
Dwr Cymru Welsh Water Dee Lane Chester Storm Overflow River Dee 50 167 h -
Dwr Cymru Welsh Water Chester WwTW Settled Storm Overflow Esturial Waters of the River Dee 20 81 h 15m -
Dwr Cymru Welsh Water Castle Drive Chester Storm Overflow River Dee 29 70 h 30m -
Dwr Cymru Welsh Water Parkgate Road Chester Storm Overflow Highfield Drain 16 65 h 4m -
Dwr Cymru Welsh Water Chester Souter's Lane Storm Overflow River Dee 17 48 h 30m -
Dwr Cymru Welsh Water Willaston Mill Lane Storm Overflow Unnamed Watercourse 23 42 h 15m -
Dwr Cymru Welsh Water Wealstone Lane Chester Storm Overflow Bache Brook 21 39 h 22m -
Dwr Cymru Welsh Water Quayside Neston Storm Overflow Dee Estuary 21 33 h 30m -
Dwr Cymru Welsh Water Eldon Terrace Neston Storm Overflow Stanney Brook 16 32 h 30m -
Dwr Cymru Welsh Water Chester WwTW Inlet Storm Overflow River Dee 19 25 h 30m -
Dwr Cymru Welsh Water The Groves Storm Overflow River Dee 18 25 h 15m -
Dwr Cymru Welsh Water Near Dee Hills Park Chester Storm Overflow River Dee 5 24 h 10m -
Dwr Cymru Welsh Water Robert's Terrace Chester Storm Overflow River Dee 31 23 h 58m -
United Utilities HOOTON ROAD CSO Dibbinsdale Brook 7 19 h 22m -
Dwr Cymru Welsh Water Castle Drive Chester Overflow River Dee 29 13 h 52m -
Dwr Cymru Welsh Water Off Hermitage Road Saughall Storm Overflow Tributary of the River Dee 5 8 h 58m -
Dwr Cymru Welsh Water Seahill Road Saughall Storm Overflow Garden City Drain 6 7 h 45m -
Dwr Cymru Welsh Water Chester Road Neston Storm Overflow Stanney Brook 4 5 h 15m -
Dwr Cymru Welsh Water The Parade Neston Storm Overflow Dee Estuary 3 4 h 41m -
Dwr Cymru Welsh Water Cheyney Road Chester Overflow Finchetts Gutter 2 2 h 44m -
Dwr Cymru Welsh Water Moston Road Storm Overflow Unnamed Watercourse 1 0 h 30m -
Dwr Cymru Welsh Water Greenfields Drive Neston Storm Overflow Dee Estuary 1 0 h 30m -
Dwr Cymru Welsh Water Parkgate Road Earle Drive Storm Overflow Dee Estuary 1 0 h 15m -
Dwr Cymru Welsh Water Unknown Unknown 1 0 h 15m -
Dwr Cymru Welsh Water Chester Daleside Storm Overflow Tributary of Finchetts Gutter 1 0 h 15m -
Dwr Cymru Welsh Water Chester Park Court Storm Overflow Bache Brook 1 0 h 14m -
Dwr Cymru Welsh Water Liverpool Road Chester Storm Overflow Bache Brook 0 0 h -
Dwr Cymru Welsh Water Dee Bridge Siphon Storm Overflow River Dee 0 0 h -
Dwr Cymru Welsh Water Gayton Parkways Storm Overflow Tributary of River Dee 0 0 h -
United Utilities Willaston Relief Sewer Dibbinsdale Brook 0 0 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.

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Analysing sewage pollution by the Water Industry

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© 2020-2025 Top-Of-The-Poops CC-BY-SA 4.0,
© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

Some data reproduced under Open Government Licence

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