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Polluted by sewage 474 times in 2025 lasting 1,564 hours
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Donate NowHere are all the reported sewage overflow totals for Crosby (Sefton) in 2025. 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 place all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s 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 | OS 49 ST ANDREWS ROAD CSO 38028 | 70 | 452 | 99.2 |
| United Utilities | River Alt | ST MICHAELS ROAD/MANOR ROAD CSO | 80 | 412 | 79.8 |
| United Utilities | River Mersey Estuary | OPPOSITE 53 MOOR LANE CSO 382G6 | 42 | 190 | 99.1 |
| United Utilities | River Mersey Estuary | O/S51 MOORLAND AVE CSO 382G6 | 67 | 157 | 99.7 |
| United Utilities | Mersey Estuary | ST ANDREWS ROAD/ST MICHAEL CSO | 58 | 154 | 92.8 |
| United Utilities | River Mersey Estuary | COLLEGE ROAD ESHE ROAD CSO 38109 | 38 | 83 | 100 |
| United Utilities | River Mersey Estuary | DIBBS LANE CSO 381RT | 37 | 45 | 99 |
| United Utilities | River Mersey Estuary | O/S 107 LIVERPOOL ROAD CSO 382D3 | 20 | 27 | 100 |
| United Utilities | Liverpool Bay | HARBORD ROAD PS 99047 | 14 | 17 | 100 |
| United Utilities | River Mersey Estuary | OUTSIDE 16 CORONATION RD CSO 381PQ | 7 | 6 | 99.2 |
| United Utilities | River Mersey Estuary | THE BYPASS/LPOOL RD JUNCT CSO 382UR | 9 | 4 | 76.4 |
| United Utilities | River Mersey Estuary | RIMROSE BROOK CSO | 10 | 3 | 100 |
| United Utilities | River Mersey Estuary | DIBBS LANE CSO 381RT | 9 | 3 | 97.3 |
| United Utilities | River Mersey Estuary | BOOTLE NORTHERN OPC CSO 99102 | 9 | 2 | 100 |
| United Utilities | River Mersey | STRAND ROAD STORM SEWER OVERFLOW | 2 | 1 | 100 |
| United Utilities | Rimrose Brook, Rvr Mersey | 3-8 MORNINGSIDE CSO 3282GE | 2 | 0 | 100 |
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.
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Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org