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Polluted by sewage 600 times in 2024 lasting 3,580 hours
So far this year (as of May 8, 2025, 7:00 PM) there has been 454 hours of sewage overflows
Your local MP is Sadik Al-Hassan (Labour) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for North Somerset, 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 North Somerset 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 % |
|---|---|---|---|---|---|
| Wessex Water | Congresbury Yeo | WRINGTON COMBINED SEWER OVERFLOW | 67 | 1,053 | 99.75 |
| Wessex Water | Congresbury Yeo And Butcombe | BUTCOMBE WATER RECYCLING CENTRE | 62 | 1,034 | 96.9 |
| Wessex Water | Unknown | PORTBURY WHARF STW | 158 | 566 | 100 |
| Wessex Water | Severn Estuary | BLACK NORE (NAUTICAL SCHOOL) PS | 45 | 205 | 100 |
| Wessex Water | Portbury Ditch | HARBOUR ROAD CSO | 26 | 152 | 100 |
| Wessex Water | River Severn | 35 HILLSIDE ROAD CSO | 53 | 119 | 96.4 |
| Wessex Water | Portbury Ditch, | PORTISHEAD TOWN PUMPING STATION | 23 | 110 | 100 |
| Wessex Water | River Avon | AVON ROAD PUMPING STATION | 33 | 89 | 92.7 |
| Wessex Water | Estuary | LAKE ROAD PUMPING STATION | 15 | 71 | 97.1 |
| Wessex Water | Bristol Channel | CLEVEDON MAIN PS | 18 | 67 | 100 |
| Wessex Water | Bristol Channel | LADYE BAY PUMPING STATION | 41 | 67 | 100 |
| Wessex Water | Portbury Ditch | SLADE ROAD/COMBE ROAD CSO | 50 | 37 | 99.9 |
| Wessex Water | Bristol Channel | CLEVEDON BEACH PUMPING STATION | 8 | 3 | 100 |
| Wessex Water | Portbury Drove Rhyne | PORTBURY DROVE PUMPING STATION | 1 | 0 | 99.7 |
| Wessex Water | Land Yeo | OLD STREET CSO, CLEVEDON | 0 | 0 | 99.9 |
| Wessex Water | Severn Estuary | CLEVEDON MARINE PARADE PUMPING STN | 0 | 0 | 96.5 |
| Wessex Water | Land Yeo | PARNELL ROAD CSO | 0 | 0 | 96.3 |
| Wessex Water | Portbury Via Sws | BRAMPTON WAY COMBINED SEWER O'FLOW | 0 | 0 | 97.2 |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org