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Polluted by sewage 2,735 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 Mid Norfolk, 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 | Barnham Broome - Mill Road | River Yare | 25 | 514 h 12m | 21.42 |
| Anglian Water | DEREHAM-RUSHMEADOW RD STW | Wendling Beck | 25 | 512 h 51m | 21.33 |
| Anglian Water | SHIPDHAM-PARKLANDS AVENUE CSO | Blackwater River | 28 | 512 h 4m | 21.33 |
| Anglian Water | BYLAUGH-NEAR CHURCH STW | River Wensum | 23 | 507 h 46m | 21.12 |
| Anglian Water | MATTISHALL STW | River Tud | 23 | 505 h 53m | 21.04 |
| Anglian Water | Barnham Broome - Mill Road | River Yare | 5 | 52 h 5m | 2.17 |
| Anglian Water | BYLAUGH-NEAR CHURCH STW | River Wensum | 3 | 24 h 1m | 1 |
| Anglian Water | NORTH ELMHAM STW | River Wensum | 3 | 22 h 30m | 0.92 |
| Anglian Water | DEREHAM-RUSHMEADOW RD STW | Wendling Beck | 5 | 22 h 1m | 0.92 |
| Anglian Water | SHIPDHAM-PARKLANDS AVENUE CSO | Blackwater River | 5 | 14 h 18m | 0.58 |
| Anglian Water | MATTISHALL STW | River Tud | 4 | 14 h 16m | 0.58 |
| Anglian Water | OLD BUCKENHAM-FEN STREET TPS | Buckenham Stream | 2 | 6 h 43m | 0.25 |
| Anglian Water | NECTON-PICKENHAM ROAD TPS | River Wissey | 2 | 6 h 15m | 0.25 |
| Anglian Water | BANHAM-WASH LANE SP | River Thet | 4 | 5 h 22m | 0.21 |
| Anglian Water | BANHAM-WASH LANE SP | River Thet | 1 | 4 h 59m | 0.17 |
| Anglian Water | ATTLEBOROUGH-DISS ROAD SP | River Thet | 1 | 4 h 20m | 0.17 |
| Anglian Water | ATTLEBOROUGH-CARVERS LANE TPS | River Thet | 2 | 3 h 34m | 0.12 |
| Anglian Water | EAST HARLING STW | River Whittle | 2 | 1 h 20m | 0.04 |
| Anglian Water | WATTON-SWAFFHAM ROAD TPS | River Wissey | 1 | 0 h 32m | 0 |
| Anglian Water | ATTLEBOROUGH-NEW ROAD TPS | Buckenham Stream | 0 | 0 h | 0 |
| Anglian Water | ATTLEBOROUGH-CARVERS LANE TPS | River Thet | 0 | 0 h | 0 |
| Anglian Water | ATTLEBOROUGH STW | River Thet | 0 | 0 h | 0 |
| Anglian Water | OLD BUCKENHAM-FEN STREET TPS | Buckenham Stream | 0 | 0 h | 0 |
| Anglian Water | EAST HARLING STW | River Whittle | 0 | 0 h | 0 |
| Anglian Water | ATTLEBOROUGH-NEW ROAD TPS | Buckenham Stream | 0 | 0 h | 0 |
| Anglian Water | NECTON-PICKENHAM ROAD TPS | River Wissey | 0 | 0 h | 0 |
| Anglian Water | ATTLEBOROUGH STW | River Thet | 0 | 0 h | 0 |
| Anglian Water | ATTLEBOROUGH-NORWICH RD #1 SP | Upper River Crouch | 0 | 0 h | 0 |
| Anglian Water | Attleborough-Norwich Road#2 Pumping Station | Culverted R Thet | 0 | 0 h | 0 |
| Anglian Water | ATTLEBOROUGH-DISS ROAD SP | River Thet | 0 | 0 h | 0 |
| Anglian Water | NORTH ELMHAM STW | River Wensum | 0 | 0 h | 0 |
| Anglian Water | WATTON-SWAFFHAM ROAD TPS | River Wissey | 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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org