Polluted by sewage 244 hours in 2025
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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 Birmingham Selly Oak, 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 Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| Severn Trent Water | BRANDWD END-COCKS MOOR WD GLF CRSE (CSO) | Chinn Brook | 25 | 43 h 15m | 1.79 |
| Severn Trent Water | YARDLEY WOOD - FIRTH DRIVE X (CSO) | Chinn Brook | 12 | 33 h 26m | 1.38 |
| Severn Trent Water | BOURNVILLE - WOODBROOKE ROAD (CSO) | Griffins Brook | 7 | 22 h 50m | 0.92 |
| Severn Trent Water | SELLY OAK - MOOR GREEN LANE (CSO) | River Rea | 21 | 22 h 5m | 0.92 |
| Severn Trent Water | KINGS HEATH - YARDLEY WOOD ROAD (CSO) | Chinn Brook | 12 | 21 h 49m | 0.88 |
| Severn Trent Water | LIFFORD - ALLENS CROFT ROAD (CSO) | River Rea | 16 | 18 h 34m | 0.75 |
| Severn Trent Water | SELLY OAK - DADS LANE (CSO) | River Rea | 8 | 17 h 11m | 0.71 |
| Severn Trent Water | KINGS HEATH - COCKS MOORS LEIS CEN (CSO) | Chinn Brook | 4 | 16 h 8m | 0.67 |
| Severn Trent Water | KINGS HEATH - BAYSTON RD PLAY FLDS (CSO) | Chinn Brook | 26 | 12 h 10m | 0.5 |
| Severn Trent Water | YARDLEY WOOD - FIRTH DRIVE X (CSO) | Chinn Brook | 5 | 10 h 43m | 0.42 |
| Severn Trent Water | BILLESLEY - DENE HOLLOW (CSO) | River Cole | 6 | 7 h 22m | 0.29 |
| Severn Trent Water | BRANDWD END-COCKS MOOR WD GLF CRSE (CSO) | Chinn Brook | 3 | 4 h 44m | 0.17 |
| Severn Trent Water | LIFFORD - ALLENS CROFT ROAD (CSO) | River Rea | 4 | 4 h 27m | 0.17 |
| Severn Trent Water | SELLY OAK - MOOR GREEN LANE (CSO) | River Rea | 5 | 2 h 54m | 0.08 |
| Severn Trent Water | KINGS HEATH - GLASTONBURY RD (CSO) | Chinn Brook | 6 | 2 h 29m | 0.08 |
| Severn Trent Water | KINGS HEATH - BAYSTON RD PLAY FLDS (CSO) | Chinn Brook | 5 | 1 h 28m | 0.04 |
| Severn Trent Water | BOURNVILLE - WOODBROOKE ROAD (CSO) | Griffins Brook | 1 | 0 h 51m | 0 |
| Severn Trent Water | KINGS HEATH - COCKS MOORS LEIS CEN (CSO) | Chinn Brook | 1 | 0 h 37m | 0 |
| Severn Trent Water | SELLY OAK - DADS LANE (CSO) | River Rea | 1 | 0 h 31m | 0 |
| Severn Trent Water | BREEDON CROSS - CHARLOTTE ROAD (CSO) | River Rea | 2 | 0 h 15m | 0 |
| Severn Trent Water | YARDLEY WOOD รขโฌโ PRIORY ROAD MH 9601 (CSO) | River Cole | 1 | 0 h 3m | 0 |
| Severn Trent Water | BILLESLEY - BROOK LANE 515 (CSO) | River Cole | 1 | 0 h 2m | 0 |
| Severn Trent Water | KINGS HEATH - GLASTONBURY RD (CSO) | Chinn Brook | 0 | 0 h | 0 |
| Severn Trent Water | KINGS HEATH - YARDLEY WOOD ROAD (CSO) | Chinn Brook | 0 | 0 h | 0 |
| Severn Trent Water | SELLY OAK - HARBORNE LANE (CSO) | Bourn Brook | 0 | 0 h | 0 |
| Severn Trent Water | BILLESLEY - DENE HOLLOW (CSO) | River Cole | 0 | 0 h | 0 |
| Severn Trent Water | KINGS HEATH - ARDENCOTE ROAD 24 (CSO) | Chinn Brook | 0 | 0 h | 0 |
| Severn Trent Water | KINGS HEATH - ARDENCOTE ROAD 24 (CSO) | Chinn Brook | 0 | 0 h | 0 |
| Severn Trent Water | SELLY OAK - HARBORNE LANE (CSO) | Bourn Brook | 0 | 0 h | 0 |
| Severn Trent Water | BILLESLEY - BROOK LANE 515 (CSO) | River Cole | 0 | 0 h | 0 |
| Severn Trent Water | BREEDON CROSS - CHARLOTTE ROAD (CSO) | River Rea | 0 | 0 h | 0 |
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.