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Wirral West - Live Sewage

Polluted by sewage 464 hours in 2026 , monitoring offline 53 hours , potential overflows 4 hours so far..

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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 Wirral West 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 Wirral West

Daily Data

Jan - 142 hours , 2 potential
Feb - 209 hours , 1 potential
Mar - 77 hours
Apr - 13 hours , 22 offline
May - 19 hours , 1 offline
Jun - 0 hours
Jul - 0 hours
Aug - 0 hours , 25 offline
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
United Utilities North Wirral WwTW (Meols) Liverpool Bay 89 390h 4m 4 h
United Utilities Harrington Avenue CSO Carr Drain 11 22h 18m -
United Utilities Arrowe Road / Arrowe Brook Lane CSO Arrowe Brook River Birket 15 17h 29m -
Dwr Cymru Welsh Water Heswall WwTW Storm Overflow Estuarial Waters of the River Dee 2 15h 30m -
United Utilities Whitebeam Walk CSO Greasby Brook Arrow Brook 12 8h 6m -
United Utilities Thornton Hough PS Thornton Hough, Clatter 3 3h 52m 25 h
Dwr Cymru Welsh Water Seabank Road Heswall Storm Overflow River Dee Estuary 6 2h -
United Utilities Outside 81 Wood Lane CSO Arrowe Brook 4 1h 44m 5 h
United Utilities Barnston Storm Tanks (51CSO065) Prenton Brook 4 1h 36m -
United Utilities Long Hey Road CSO River Dee 2 1h 12m 22 h
United Utilities Frankby Close CSO Greasby Brook 1 0h 10m -
United Utilities Thornton Hough PS Thornton Hough, Clatter 0 0h -
United Utilities Ennisdale Drive CSO Newton Brook 0 0h -
United Utilities Stanley Road Pumping Station (Site ID 51005) (WIR0090) River Birket 0 0h -
United Utilities North Wirral WwTW (Meols) Liverpool Bay 0 0h -
United Utilities Black Horse Hill CSO Newton Brook River Birket 0 0h -
United Utilities North Wirral WwTW (Meols) Liverpool Bay 0 0h 0 h
United Utilities West Kirkby Pumping Station (Site ID 51001) (WIR0092) Foxholes Brook 0 0h -
United Utilities Whitebeam Walk CSO Greasby Brook Arrow Brook 0 0h -
United Utilities Outside 81 Wood Lane CSO Arrowe Brook 0 0h -
United Utilities Croft Drive/Shore Road CSO River Dee Estuary 0 0h -
United Utilities Frankby Close CSO Greasby Brook 0 0h -
United Utilities Black Horse Hill CSO Newton Brook River Birket 0 0h -
United Utilities Croft Drive/Shore Road CSO River Dee Estuary 0 0h -
United Utilities Rear of 65 Fulton Avenue CSO Newton Brook 0 0h -
United Utilities Greasby Road/ Cortsway Combined Sewer Overflow (Site ID 511WQ) (WIR0085) Arrowe Brook 0 0h -
Dwr Cymru Welsh Water Park West Heswall Overflow River Dee 0 0h -
United Utilities Rear of 65 Fulton Avenue CSO Newton Brook 0 0h -
United Utilities Long Hey Road CSO River Dee 0 0h -
United Utilities Arrowe Road / Arrowe Brook Lane CSO Arrowe Brook River Birket 0 0h -
United Utilities West Kirkby Pumping Station (Site ID 51001) (WIR0092) Foxholes Brook 0 0h -
Dwr Cymru Welsh Water Riverbank Road Heswall Storm Overflow Estuarial Waters of the River Dee 0 0h -
Dwr Cymru Welsh Water Heswall Cottage Lane Storm Overflow River Dee 0 0h -
United Utilities Westbourne Rd CSO (512ZA) Dee Estuary 0 0h -
United Utilities North Wirral WwTW (Meols) Liverpool Bay 0 0h -
United Utilities Barnston Storm Tanks (51CSO065) Prenton Brook 0 0h -
United Utilities Greasby Road/ Cortsway Combined Sewer Overflow (Site ID 511WQ) (WIR0085) Arrowe Brook 0 0h -
United Utilities Westbourne Rd CSO (512ZA) Dee Estuary 0 0h -
United Utilities Stanley Road Pumping Station (Site ID 51005) (WIR0090) River Birket 0 0h -
United Utilities Harrington Avenue CSO Carr Drain 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.

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Analysing sewage pollution by the Water Industry

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© 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

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