Polluted by sewage 2,719 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 Great Yarmouth, 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) |
|---|---|---|---|---|---|
| Anglian Water | Caister - Pump Lane Water Recycling Centre | North Sea | 78 | 693 h 31m | 28.88 |
| Anglian Water | GT YARMOUTH-TAR WORKS RD NEWSM | Tidal River Bure | 51 | 542 h 4m | 22.58 |
| Anglian Water | GT YARMOUTH-GARRISON RD SP | Tidal River Bure | 48 | 528 h 23m | 22 |
| Anglian Water | CAISTER-HEADWORKS PS | To Marsh Drain System | 32 | 517 h 23m | 21.54 |
| Anglian Water | Caister - Pump Lane Water Recycling Centre | North Sea | 17 | 183 h 57m | 7.62 |
| Anglian Water | GT YARMOUTH SUFFLING RD SP | Tidal River Yare | 6 | 96 h 7m | 4 |
| Anglian Water | GORLESTON-BAKER ST SP | Tidal River Yare | 16 | 55 h 26m | 2.29 |
| Anglian Water | CAISTER-HEADWORKS PS | To Marsh Drain System | 6 | 20 h 1m | 0.83 |
| Anglian Water | GT YARMOUTH-TAR WORKS RD NEWSM | Tidal River Bure | 11 | 18 h 9m | 0.75 |
| Anglian Water | GT YARMTH-N DENES/JELLICO R SP | Tidal River Bure | 11 | 11 h 14m | 0.46 |
| Anglian Water | GT YARMOUTH-TOWN HALL SP | Tidal River Yare | 16 | 9 h 37m | 0.38 |
| Anglian Water | Great Yarmouth Bryants Quay Pumping Station | Tidal River Yare | 14 | 9 h 32m | 0.38 |
| Anglian Water | GT YARMOUTH-GARRISON RD SP | Tidal River Bure | 7 | 9 h 15m | 0.38 |
| Anglian Water | GT YARMTH-STOWN SUFFOLK RD SP | Tidal River Yare | 9 | 5 h 26m | 0.21 |
| Anglian Water | MARTHAM HALL ROAD SPS | Ormesby Broad | 1 | 5 h | 0.21 |
| Anglian Water | GT YARMOUTH SUFFLING RD SP | Tidal River Yare | 10 | 4 h 30m | 0.17 |
| Anglian Water | GT YARMTH-N DENES/JELLICO R SP | Tidal River Bure | 2 | 3 h 34m | 0.12 |
| Anglian Water | Gt Yarmouth Gorleston/Brush Bend Combined Sewer Overflow | River Yare | 2 | 2 h 28m | 0.08 |
| Anglian Water | Gt Yarmouth Gorleston/Brush Bend Combined Sewer Overflow | River Yare | 2 | 2 h | 0.08 |
| Anglian Water | GT YARMOUTH-TOWN HALL SP | Tidal River Yare | 3 | 1 h 42m | 0.04 |
| Anglian Water | Great Yarmouth Boundary Road Pumping Station | Tidal River Yare | 1 | 0 h 23m | 0 |
| Anglian Water | GORLESTON-BAKER ST SP | Tidal River Yare | 0 | 0 h | 0 |
| Anglian Water | MARTHAM HALL ROAD SPS | Ormesby Broad | 0 | 0 h | 0 |
| Anglian Water | GT YARMTH-STOWN SUFFOLK RD SP | Tidal River Yare | 0 | 0 h | 0 |
| Anglian Water | Great Yarmouth Boundary Road Pumping Station | Tidal River Yare | 0 | 0 h | 0 |
| Anglian Water | Great Yarmouth Bryants Quay Pumping Station | Tidal River Yare | 0 | 0 h | 0 |
| Anglian Water | RUNHAM-SIDE GATE RD SP | Tidal River Bure | 0 | 0 h | 0 |
| Anglian Water | RUNHAM-SIDE GATE RD SP | Tidal River Bure | 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.