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Polluted by sewage 159 hours in 2026 , monitoring offline 271 hours , potential overflows 24 hours so far..
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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Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Offline/Potential Pollution |
|---|---|---|---|---|---|
| Severn Trent Water | CANNON HILL PARK-OFF PERSHORE RD (CSO) | River Rea | 20 | 125h 5m | 198 h |
| Severn Trent Water | HALL GREEN - SAREHOLE ROAD 323 (CSO) | River Cole | 18 | 33h 58m | - |
| Severn Trent Water | WAKE GREEN - WAKE GREEN RD (CSO) | River Cole | 0 | 0h | - |
| Severn Trent Water | CANNON HILL PARK-OFF PERSHORE RD (CSO) | River Rea | 0 | 0h | - |
| Severn Trent Water | HALL GREEN - SAREHOLE ROAD 323 (CSO) | River Cole | 0 | 0h | - |
| Severn Trent Water | WAKE GREEN - YARDLEY WOOD RD (CSO) | River Cole | 0 | 0h | - |
| Severn Trent Water | WAKE GREEN - YARDLEY WOOD RD (CSO) | River Cole | 0 | 0h | - |
| Severn Trent Water | SMALL HEATH - GOLDEN HILLOCK ROAD (CSO) | Spark Brook | 0 | 0h | - |
| Severn Trent Water | SMALL HEATH - HEYBARNES RD (CSO) | River Cole | 0 | 0h | - |
| Severn Trent Water | SMALL HEATH - HOB MOOR ROAD (CSO) | River Cole | 0 | 0h | - |
| Severn Trent Water | SMALL HEATH - GOLDEN HILLOCK ROAD (CSO) | Spark Brook | 0 | 0h | 97 h |
| Severn Trent Water | WAKE GREEN - WAKE GREEN RD (CSO) | River Cole | 0 | 0h | - |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org