Polluted by sewage 899 times in 2024 lasting 6,584 hours
So far this year (as of Apr 30, 2025, 9:00 AM) there has been 1,981 hours of sewage overflows
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We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Ellesmere Port and Bromborough, 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 Ellesmere Port and Bromborough 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 | River Mersey Estuary | BROMBOROUGH WWTW | 325 | 3,635 | 93.85 |
United Utilities | River Mersey Estuary | DOCK ROAD SOUTH CSO | 137 | 1,423 | 87.9 |
United Utilities | River Mersey Estuary | DOCK ROAD SOUTH CSO | 90 | 397 | 97.7 |
United Utilities | Manchester Ship Canal | POWERHOUSE ROAD PUMPING STATION | 64 | 278 | 100 |
United Utilities | Rivacre Brook, Mersey | RIVACRE VALLEY PARK CSO | 51 | 219 | 92.4 |
United Utilities | Mersey Estuary | THE DELL COMBINED SEWER OVERFLOW | 66 | 195 | 94.5 |
United Utilities | Little Stanney Drain | THORNTON ROAD ELLESMERE PORT CSO | 42 | 144 | 99.2 |
United Utilities | Rivacre Brook | RIVACRE VALLEY PARK CSO | 41 | 140 | 99 |
United Utilities | Dibbinsdale Brook | EASTHAM RAKE CSO | 25 | 77 | 100 |
United Utilities | Mersey Estuary | THERMAL ROAD/PORT CAUSEWAY CSO | 35 | 45 | 98.8 |
United Utilities | Rivacre Brook | VALLEY DRIVE CSO | 10 | 13 | 100 |
United Utilities | Mersey Estuary | BROMBOROUGH POOL VILLAGE PS 51026 | 5 | 9 | 100 |
United Utilities | Bromborough Pool | PORT CAUSEWAY/CROSSWAY CSO | 7 | 0 | 99.3 |
United Utilities | Manchester Ship Canal | WHITBY ROAD COMBINED SEWER OVERFLOW | 1 | 0 | 99.4 |
United Utilities | River Mersey | MAYFIELDS DRIVE WW NTWK PS | 0 | 0 | 95.4 |
United Utilities | Manchester Ship Canal | 3 PARK ROAD CSO | 0 | 0 | 99.2 |
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.