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Polluted by sewage 693 times in 2024 lasting 3,306 hours
So far this year (as of May 8, 2025, 7:15 PM) there has been 2,252 hours of sewage overflows
Your local MP is Sarah Hall (Labour/Co-operative) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Warrington South, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.
Each CSO has a row, the most recent data is on the right hand side.
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Donate NowHere are all the reported sewage overflow totals for Warrington South in 2024. Sometimes sewage can be being dumped for months at a time.
Reporting refers to how much of the time the monitoring was active. In this constituency all the declared CSOs appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| United Utilities | Mersey Estuary | WARRINGTON NORTH WWTW | 109 | 1,131 | 100 |
| United Utilities | M/C Ship Canal | WARRINGTON SOUTH WWTW | 82 | 910 | 100 |
| United Utilities | Longford Brook | LONGFORD BARRAGE CSO 48008 | 30 | 203 | 100 |
| United Utilities | Penketh Brook | HALL NOOK COMBINED SEWER OVERFLOW | 76 | 177 | 97 |
| United Utilities | Manchester Ship Canal | WALTON PS | 22 | 138 | 100 |
| United Utilities | Sankey Brook | LONGSHAW STREET CSO (48066) | 17 | 131 | 99.9 |
| United Utilities | Longford Brook | ATHLONE ROAD CSO 48062 | 21 | 127 | 100 |
| United Utilities | River Mersey | KINGSWAY COMBINED SEWER OVERFLOW | 86 | 100 | 99.8 |
| United Utilities | Sankey Brook | SANKEY BRIDGES PS | 31 | 83 | 61.6 |
| United Utilities | Mersey Estuary | WHITTLE BROOK PS | 32 | 57 | 100 |
| United Utilities | Sankey Brook | BEWSEY BRIDGE PUMPING STN | 11 | 51 | 100 |
| United Utilities | Sankey Brook | THORNTON ROAD DEPOT CSO 482U7 | 35 | 40 | 99.3 |
| United Utilities | River Mersey | THEWLIS STREET CSO | 39 | 33 | 84.3 |
| United Utilities | Dallam Brook Via Sws | 4 TAVLIN AVENUE CSO | 5 | 30 | 99.3 |
| United Utilities | Manchester Ship Canal | KNUTSFORD RD/GRAMMAR SCHOOL RD CSO | 39 | 28 | 99.5 |
| United Utilities | Whittle Brook Via Sws | HIGHFIELD AVENUE CSO | 7 | 22 | 69.8 |
| United Utilities | River Mersey | WESTY FLUMES 1 SOUTH CSO 489CB | 20 | 17 | 91.7 |
| United Utilities | Whittle Brook | WARRINGTON ROAD WA5 2JL CSO | 13 | 10 | 100 |
| United Utilities | Manchester Ship Canal | ELLESMERE ROAD CSO 481TI | 7 | 5 | 98.8 |
| United Utilities | Unknown | CAUSEWAY PS | 11 | 4 | 100 |
| United Utilities | Manchester Ship Canal | WARRINGTON/GRAPPENHALL | 0 | 0 | 98.8 |
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. This 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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org