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Wallasey - Live Sewage

Polluted by sewage 542 hours in 2026 , monitoring offline 1,517 hours so far..

© 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 Wallasey 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.

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Constituencies near Wallasey

Daily Data

Jan - 170 hours
Feb - 282 hours , 0 offline
Mar - 46 hours , 372 offline
Apr - 13 hours , 723 offline
May - 29 hours , 421 offline
Jun - 0 hours
Jul - 0 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities Wallasey PS River Mersey Estuary 60 262h 4m -
United Utilities Upton Storm Tanks River Fender 10 107h 24m 31 h
United Utilities The rear of 25 Wheatfield Close CSO River Fender 20 91h 8m -
United Utilities Wallasey PS River Mersey Estuary 13 22h 16m -
United Utilities Leasowe Road CSO Bidston Stream 18 19h 16m -
United Utilities Sandy Lane CSO Bidston Stream 17 13h 30m -
United Utilities Wastdale Drive CSO Arrowe Brook 9 9h 57m -
United Utilities Wallacre Road CSO Mersey Estuary 4 4h 31m -
United Utilities Briscoe Drive CSO River Fender 4 3h 58m -
United Utilities Upton Road CSO River Fender 6 3h 54m -
United Utilities Hoylake Road/Chapelhill Road CSO River Fender 3 3h 52m -
United Utilities Kingfisher Way CSO Arrowe Brook 1 0h 58m -
United Utilities Stanley Green Avenue/Green Lane CSO River Birket 0 0h -
United Utilities Kingfisher Way CSO Arrowe Brook 0 0h -
United Utilities Upton Road CSO River Fender 0 0h -
United Utilities Wallacre Road/Beaufort Drive CSO Bidston Stream 0 0h -
United Utilities 97 Wood Lane CSO Arrowe Brook 0 0h -
United Utilities Wallasey PS River Mersey Estuary 0 0h -
United Utilities New Brighton PS Tidal River Mersey 1 0h 2 h
United Utilities Acton Lane CSO Arrowe Brook 0 0h -
United Utilities Wastdale Drive CSO Arrowe Brook 0 0h -
United Utilities Garrick Avenue CSO Arrowe Brook 0 0h -
United Utilities Leasowe Road CSO Bidston Stream 0 0h -
United Utilities Wood Lane/ Glentree Close CSO Arrowe Brook River Birkett 0 0h -
United Utilities The rear of 25 Wheatfield Close CSO River Fender 0 0h -
United Utilities 389 Hoylake Road CSO Arrowe Brook 0 0h -
United Utilities Station Road CSO Bidston Stream 0 0h -
United Utilities Upton Storm Tanks River Fender 0 0h -
United Utilities Wallasey PS River Mersey Estuary 0 0h -
United Utilities New Brighton PS Tidal River Mersey 0 0h -
United Utilities Sandy Lane CSO Bidston Stream 0 0h -
United Utilities Station Road CSO Bidston Stream 0 0h 1,462 h
United Utilities Acton Lane CSO Arrowe Brook 0 0h -
United Utilities Beechwood Avenue CSO Bidston Stream 0 0h -
United Utilities Maryland Lane CSO Arrowe Brook 0 0h -
United Utilities Wallasey Detention Tank River Mersey Estuary 0 0h -
United Utilities Wallasey Detention Tank River Mersey Estuary 0 0h -
United Utilities Wood Lane/ Glentree Close CSO Arrowe Brook River Birkett 0 0h -
United Utilities Maryland Lane CSO Arrowe Brook 0 0h 3 h
United Utilities Garrick Avenue CSO Arrowe Brook 0 0h -
United Utilities Briscoe Drive CSO River Fender 0 0h -
United Utilities Saughall Massie Road / Devonshire Road CSO Arrowe Brook 0 0h -
United Utilities 97 Wood Lane CSO Arrowe Brook 0 0h 18 h
United Utilities Wallacre Road/Beaufort Drive CSO Bidston Stream 0 0h -
United Utilities Beechwood Avenue CSO Bidston Stream 0 0h -
United Utilities Hoylake Road/Chapelhill Road CSO River Fender 0 0h -
United Utilities Stanley Green Avenue/Green Lane CSO River Birket 0 0h -
United Utilities Saughall Massie Road / Devonshire Road CSO Arrowe Brook 0 0h -
United Utilities Wallacre Road CSO Mersey Estuary 0 0h -
United Utilities 389 Hoylake Road CSO Arrowe Brook 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

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.