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Polluted by sewage 5,151 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 West Suffolk, 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 | HUNDON STW / HUNDON-LOWER CHURCH RD TPS | Chilton Brook River Stour | 33 | 649 h 11m | 27.04 |
| Anglian Water | WHEPSTEAD-CHURCH RD TPS | R Lark | 35 | 622 h 49m | 25.92 |
| Anglian Water | CHEVINGTON-CHURCH RD TPS | River Linnet | 35 | 605 h 32m | 25.21 |
| Anglian Water | GT WRATTING-THE STREET SP | River Stour | 28 | 547 h 15m | 22.79 |
| Anglian Water | Barrow Sewage Treatment Works | Cavenham Stream River Lark | 29 | 540 h 5m | 22.5 |
| Anglian Water | CHEDBURGH STW | River Linnet | 24 | 524 h 44m | 21.83 |
| Anglian Water | HAWSTEAD-HAWSTEAD GRN SP | Stanningf'D R Lark | 25 | 517 h 30m | 21.54 |
| Anglian Water | Culford The Street SP | River Lark | 25 | 513 h 47m | 21.38 |
| Anglian Water | HUNDON STW / HUNDON-LOWER CHURCH RD TPS | Chilton Brook River Stour | 11 | 161 h 41m | 6.71 |
| Anglian Water | Barrow Sewage Treatment Works | Cavenham Stream River Lark | 6 | 98 h 41m | 4.08 |
| Anglian Water | CHEVINGTON-CHURCH RD TPS | River Linnet | 10 | 94 h 28m | 3.92 |
| Anglian Water | WHEPSTEAD-CHURCH RD TPS | R Lark | 7 | 86 h 45m | 3.58 |
| Anglian Water | LITTLE WRATTING SPS | Stour Brook | 3 | 35 h 1m | 1.46 |
| Anglian Water | CHEDBURGH STW | River Linnet | 4 | 28 h 26m | 1.17 |
| Anglian Water | HAWSTEAD-HAWSTEAD GRN SP | Stanningf'D R Lark | 4 | 22 h 30m | 0.92 |
| Anglian Water | HAVERHILL STW | Stour Brook River Stour | 2 | 20 h 14m | 0.83 |
| Anglian Water | Culford The Street SP | River Lark | 4 | 19 h 15m | 0.79 |
| Anglian Water | GT WRATTING-THE STREET SP | River Stour | 3 | 15 h 39m | 0.62 |
| Anglian Water | BRANDON STW | River Little Ouse | 8 | 14 h 11m | 0.58 |
| Anglian Water | GT WHELNETHAM STW | River Lark | 1 | 9 h 59m | 0.38 |
| Anglian Water | BRANDON STW | River Little Ouse | 2 | 9 h 8m | 0.38 |
| Anglian Water | HAVERHILL STW | Stour Brook River Stour | 1 | 8 h 45m | 0.33 |
| Anglian Water | COWLINGE-GREEN MAN P H SP | River Kennett | 1 | 2 h 59m | 0.08 |
| Anglian Water | HENGRAVE-OFF LACKFORD RD SP | River Lark | 2 | 1 h 4m | 0.04 |
| Anglian Water | COWLINGE-THREE TUNS SP | River Kennett | 1 | 0 h 54m | 0 |
| Anglian Water | MILDENHALL STW | River Lark | 1 | 0 h 44m | 0 |
| Anglian Water | Newmarket Water Recycling Centre | Newmarket No.1 Public Drain | 1 | 0 h 12m | 0 |
| Anglian Water | GT WHELNETHAM STW | River Lark | 1 | 0 h 11m | 0 |
| Anglian Water | WICKHAMBROOK-BROOK COTTS TPS | River Glem | 0 | 0 h | 0 |
| Anglian Water | COWLINGE-GREEN MAN P H SP | River Kennett | 0 | 0 h | 0 |
| Anglian Water | Newmarket Water Recycling Centre | Newmarket No.1 Public Drain | 0 | 0 h | 0 |
| Anglian Water | MILDENHALL STW | River Lark | 0 | 0 h | 0 |
| Anglian Water | HENGRAVE-OFF LACKFORD RD SP | River Lark | 0 | 0 h | 0 |
| Anglian Water | WICKHAMBROOK-BROOK COTTS TPS | River Glem | 0 | 0 h | 0 |
| Anglian Water | LITTLE WRATTING SPS | Stour Brook | 0 | 0 h | 0 |
| Anglian Water | COWLINGE-THREE TUNS SP | River Kennett | 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