It's a Dirty Business

Watch Channel 4's documentary about the state of the water industry.

Southport - 2025 Sewage

Polluted by sewage 2,526 hours in 2025 , monitoring offline 4,026 hours , potential overflows 295 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 Southport 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 - 392 hours , 19 potential
Feb - 25 hours , 672 offline
Mar - 5 hours , 744 offline
Apr - 4 hours , 50 potential
May - 32 hours , 173 potential
Jun - 173 hours , 3 potential
Jul - 2 hours
Aug - 1 hours
Sept - 175 hours , 20 potential
Oct - 152 hours , 3 potential
Nov - 791 hours , 1 potential
Dec - 768 hours , 23 potential
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Thank you so much to everyone who contributed to the site in 2025 to keep it running. We do rely on your contributions! Developing and running a website costs real money.
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
United Utilities MERE BROW WwTW Tarleton Runner 92 1,160 h 1m -
United Utilities MERE BROW WwTW Tarleton Runner 32 422 h 4m -
United Utilities Liverpool Road PS (49039) River Douglas 26 386 h 26m -
United Utilities MERE BROW WwTW Tarleton Runner 14 84 h 3m 50 h
United Utilities Crowland Street PS Three Pools Waterway 16 82 h 58m 62 h
United Utilities HESKETH BANK WwTW Douglas Estuary 9 76 h 58m 145 h
United Utilities SOUTHPORT WwTW Crossens Pool 11 62 h 53m 104 h
United Utilities O/S 119 Rufford Road CSO Three Pools Waterway 23 55 h 10m 25 h
United Utilities SOUTHPORT WwTW Crossens Pool 11 45 h 58m 40 h
United Utilities Shore Road Wastewater Network PS(Site ID 49065) (WLN0008) Dunkirk Dib 23 31 h 57m 102 h
United Utilities Balmoral Drive/North Road CSO River Ribble 6 26 h 26m 7 h
United Utilities The Crescent CSO (383KE) Three Pool'S Waterway 7 24 h 43m 5 h
United Utilities Liverpool Road PS (49039) River Douglas 8 22 h 25m 3,763 h
United Utilities O/S 119 Rufford Road CSO Three Pools Waterway 8 13 h 10m -
United Utilities Shore Road Wastewater Network PS(Site ID 49065) (WLN0008) Dunkirk Dib 7 12 h 5m 1 h
United Utilities HESKETH LANE CSO River Douglas 9 5 h 30m 12 h
United Utilities Crowland Street PS Three Pools Waterway 2 5 h 3m -
United Utilities MERE BROW WwTW Tarleton Runner 1 3 h 56m -
United Utilities Janes Brook Road PS Fine Jane'S Brook 4 2 h 44m -
United Utilities Weld Road CSO Irish Sea 2 1 h 12m -
United Utilities Weld Road CSO Irish Sea 1 0 h 35m -
United Utilities HESKETH LANE CSO River Douglas 1 0 h 26m -
United Utilities HESKETH BANK WwTW Douglas Estuary 0 0 h -
United Utilities Janes Brook Road PS Fine Jane'S Brook 0 0 h -
United Utilities Balmoral Drive/North Road CSO River Ribble 0 0 h -
United Utilities The Crescent CSO (383KE) Three Pool'S Waterway 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.