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Polluted by sewage 255 times in 2025 lasting 955 hours
Monitoring fell below 50% in some locations so could be more
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Donate NowHere are all the reported sewage overflow totals for Norwich South 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 constituency 3 of the total 22 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Anglian Water | . | ELM HILL OVERFLOW | 70 | 643 | 100 |
| Anglian Water | River Wensum | NORWICH CEDAR ROAD CSO | 11 | 96 | 18.9 |
| Anglian Water | River Yare | TROWSE TERMINAL PUMPING STATION | 15 | 51 | 100 |
| Anglian Water | River Wensum | NORWICH - KETTS HILL CSO | 35 | 50 | 94.6 |
| Anglian Water | River Yare | NORWICH SANDY LANE CSO | 24 | 35 | 67.8 |
| Anglian Water | River Wensum | GIBRALTAR GARDENS CSO | 8 | 28 | 95.3 |
| Anglian Water | River Wensum | KING STREET COMBINED SEWER OVERFLOW | 26 | 23 | 99.7 |
| Anglian Water | River Wensum | NORWICH - KING STREET #2 CSO | 20 | 9 | 97.8 |
| Anglian Water | River Wensum | NORWICH LOWER CLOSE (FERRY LN) CSO | 11 | 7 | 99.7 |
| Anglian Water | River Wensum | NORWICH - PRINCE OF WALES ROAD CSO | 7 | 2 | 100 |
| Anglian Water | River Wensum | NORWICH - RIVER LANE CSO | 6 | 2 | 100 |
| Anglian Water | River Wensum | NORWICH CARROW ROAD CSO | 3 | 2 | 20.2 |
| Anglian Water | River Wensum | SCHOOL LANE / BEDFORD STREET CSO | 4 | 1 | 39 |
| Anglian Water | River Wensum | NORWICH ST FAITHS LANE CSO | 6 | 1 | 100 |
| Anglian Water | River Wensum | NORWICH - BARRACK STREET CSO | 3 | 1 | 89.7 |
| Anglian Water | River Wensum | NORWICH - CHALK HILL ROAD CSO | 2 | 0 | 100 |
| Anglian Water | River Wensum | NORWICH - ROSARY ROAD CSO | 2 | 0 | 100 |
| Anglian Water | River Wensum | NORWICH RECORDER ROAD CSO | 2 | 0 | 99.8 |
| Anglian Water | River Yare | BRACONDALE COMBINED SEWER OVERFLOW | 0 | 0 | 99.1 |
| Anglian Water | River Wensum | NORWICH - ELM HILL CSO | 0 | 0 | 99.9 |
| Anglian Water | River Wensum | NORWICH - NEW MILLS CSO | 0 | 0 | 99.3 |
| Anglian Water | River Wensum | NORWICH COW TOWER CSO | 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.
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