Wirral West - Live Sewage

Polluted by sewage 771 hours in 2026 , monitoring offline 121 hours , potential overflows 14 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.

Totals for Wirral West in 2026

Sewage771 hours
Monitoring offline121 hours
Potential pollution14 hours
Storm overflows40

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Daily Data

Jan - 142 hours , 2 potential
Feb - 209 hours , 1 potential
Mar - 77 hours
Apr - 13 hours , 20 offline
May - 19 hours , 1 offline
Jun - 0 hours
Jul - 0 hours
Aug - 61 hours , 25 offline
Sept - 67 hours , 51 offline
Oct - 179 hours , 10 potential
Nov - 0 hours , 9 offline
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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 124 564h 9m 15 h
United Utilities Harrington Avenue CSO Carr Drain 27 61h 34m -
United Utilities Arrowe Road / Arrowe Brook Lane CSO Arrowe Brook River Birket 27 33h 41m -
United Utilities North Wirral WwTW (Meols) Liverpool Bay 5 27h 19m 0 h
United Utilities Whitebeam Walk CSO Greasby Brook Arrow Brook 27 26h 52m 3 h
Dwr Cymru Welsh Water Heswall WwTW Storm Overflow Estuarial Waters of the River Dee 4 23h 45m -
United Utilities Outside 81 Wood Lane CSO Arrowe Brook 11 7h 52m 65 h
United Utilities Barnston Storm Tanks (51CSO065) Prenton Brook 6 6h 56m -
United Utilities Thornton Hough PS Thornton Hough, Clatter 7 5h 54m 24 h
United Utilities Frankby Close CSO Greasby Brook 6 3h 32m -
Dwr Cymru Welsh Water Heswall Cottage Lane Storm Overflow River Dee 1 3h 15m -
Dwr Cymru Welsh Water Seabank Road Heswall Storm Overflow River Dee Estuary 6 2h 14m -
Dwr Cymru Welsh Water Riverbank Road Heswall Storm Overflow Estuarial Waters of the River Dee 2 1h 29m -
United Utilities Rear of 65 Fulton Avenue CSO Newton Brook 3 1h 16m 0 h
United Utilities Long Hey Road CSO River Dee 2 1h 12m 20 h
United Utilities Greasby Road/ Cortsway Combined Sewer Overflow (Site ID 511WQ) (WIR0085) Arrowe Brook 2 0h 46m -
United Utilities Thornton Hough PS Thornton Hough, Clatter 0 0h -
United Utilities Ennisdale Drive CSO Newton Brook 0 0h 3 h
United Utilities Black Horse Hill CSO Newton Brook River Birket 0 0h 2 h
United Utilities West Kirkby Pumping Station (Site ID 51001) (WIR0092) Foxholes 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 -
Dwr Cymru Welsh Water Park West Heswall Overflow 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 -
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 Harrington Avenue CSO Carr Drain 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 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 Long Hey Road CSO River Dee 0 0h -
United Utilities Stanley Road Pumping Station (Site ID 51005) (WIR0090) River Birket 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.