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Polluted by sewage 418 times in 2025 lasting 2,033 hours
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Donate NowHere are all the reported sewage overflow totals for Avonmouth 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 % |
|---|---|---|---|---|---|
| Wessex Water | Severn Estuary | AVONMOUTH STW | 67 | 865 | 100 |
| Wessex Water | Unknown | PORTBURY WHARF STW | 83 | 721 | 100 |
| Wessex Water | River Avon | WEST TOWN ROAD PUMPING STATION | 55 | 131 | 100 |
| Wessex Water | River Avon | WEST TOWN ROAD PUMPING STATION | 14 | 65 | 100 |
| Wessex Water | River Avon | AVON ROAD PUMPING STATION | 26 | 64 | 100 |
| Wessex Water | River Avon Via Sws | LOWER HIGH STREET CSO | 13 | 59 | 98.5 |
| Wessex Water | River Avon Via Sws | PORTWAY COMBINED SEWER OVERFLOW | 47 | 44 | 100 |
| Wessex Water | River Severn Via Sws | QUEEN STREET CSO | 6 | 21 | 99.8 |
| Wessex Water | River Avon Via Sws | AVONMOUTH ROAD CSO | 36 | 18 | 100 |
| Wessex Water | Bristol Avon | AVONMOUTH 'B' PUMPING STATION | 5 | 11 | 100 |
| Wessex Water | River Severn Estuary Via Sws | THIRD WAY CSO | 2 | 11 | 89 |
| Wessex Water | River Avon Via Sws | 5 SPRINGFIELD AVENUE CSO | 24 | 7 | 98.3 |
| Wessex Water | River Avon Via Sws | OLD PARK RD COMBINED SEWER OVERFLOW | 19 | 4 | 100 |
| Wessex Water | River Avon | AVONMOUTH WAY COMBINED SEWER OF | 3 | 4 | 76.8 |
| Wessex Water | River Avon Via Sws | 7 SPRINGFIELD AVENUE CSO | 12 | 2 | 98.5 |
| Wessex Water | River Avon | WATLING WAY COMBINED SEWER OVERFLOW | 5 | 1 | 100 |
| Wessex Water | River Avon | LAMPLIGHTERS SEWAGE PUMPING STATION | 1 | 0 | 100 |
| Wessex Water | River Avon Via Sws | LOWER HIGH STREET CSO | 0 | 0 | 100 |
| Wessex Water | Portbury Drove Rhyne | PORTBURY DROVE PUMPING STATION | 0 | 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