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Polluted by sewage 2,697 hours in 2026 , monitoring offline 4,162 hours , potential overflows 634 hours so far..
What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.
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Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Offline/Potential Pollution |
|---|---|---|---|---|---|
| Anglian Water | FULBECK STW | Beck | 55 | 627h 53m | - |
| Anglian Water | LONG BENNINGTON WRC | River Witham | 39 | 606h 32m | - |
| Anglian Water | BOURNE STW | Bourne Eau + Black Sluice Dyke | 36 | 425h 27m | 11 h |
| Anglian Water | CLAYPOLE STW | River Witham | 20 | 224h 32m | - |
| Anglian Water | GT GONERBY-BELTON LANE SP | Running Furrows Drain River Wi | 16 | 167h 15m | - |
| Anglian Water | MARSTON STW (LINCS) | River Witham | 15 | 155h 33m | - |
| Severn Trent Water | WOOLSTHORPE STW (SSTO) | River Devon | 12 | 130h | - |
| Anglian Water | OSBOURNBY STW | S.Beck N.Beck South Forty Foot | 14 | 118h 17m | - |
| Anglian Water | DYKE-VILLAGE ST SP | Unknown South Of Dyke Dr | 5 | 60h 37m | - |
| Anglian Water | HARLAXTON STW | Grantham Canal | 7 | 55h 36m | - |
| Anglian Water | LONG BENNINGTON-CHURCH ST TPS | Ease Drain | 7 | 24h 57m | - |
| Anglian Water | HELPRINGHAM STW | Helpringham Eau South Forty Fo | 3 | 23h 14m | - |
| Anglian Water | MANTHORPE-MILL SP | Running Furrows Drain | 9 | 19h 40m | - |
| Anglian Water | LONG BENNINGTON-WATERLANE SSO | Dike River Witham | 2 | 17h 52m | - |
| Anglian Water | LONG BENNINGTON-CHURCH ST TPS | Ease Drain | 2 | 11h 59m | - |
| Anglian Water | CLAYPOLE-WELFEN LA TPS | Claypole Drain South | 5 | 11h 49m | 634 h |
| Anglian Water | Bourne STW_A3 | Bourne Eau + Black Sluice Dyke | 5 | 9h 16m | - |
| Anglian Water | STORM WATER ALMA PARK | Unknown | 4 | 3h 42m | - |
| Anglian Water | HECKINGTON WRC | Heckington Eau | 3 | 2h 47m | - |
| Severn Trent Water | WOOLSTHORPE STW (SSTO) | River Devon | 0 | 0h | - |
| Anglian Water | HARLAXTON STW | Grantham Canal | 0 | 0h | - |
| Anglian Water | Grantham - Bridge End Grove CSO | River Witham | 0 | 0h | 852 h |
| Anglian Water | FOSTON SP | Unnamed Drain | 0 | 0h | - |
| Anglian Water | CLAYPOLE STW | River Witham | 0 | 0h | - |
| Anglian Water | MANTHORPE-MILL SP | Running Furrows Drain | 0 | 0h | - |
| Anglian Water | BOURNE STW | Bourne Eau + Black Sluice Dyke | 0 | 0h | - |
| Anglian Water | OSBOURNBY STW | S.Beck N.Beck South Forty Foot | 0 | 0h | - |
| Anglian Water | MARSTON STW (LINCS) | River Witham | 0 | 0h | - |
| Anglian Water | LONG BENNINGTON-WATERLANE SSO | Dike River Witham | 0 | 0h | - |
| Anglian Water | GT HALE SP | Beck | 0 | 0h | - |
| Anglian Water | ALLINGTON STW | Foston Beck | 0 | 0h | - |
| Anglian Water | CLAYPOLE-WELFEN LA TPS | Claypole Drain South | 0 | 0h | - |
| Anglian Water | DYKE-VILLAGE ST SP | Unknown South Of Dyke Dr | 0 | 0h | - |
| Anglian Water | WILSFORD STW | To Swallow Hole | 0 | 0h | - |
| Anglian Water | LONG BENNINGTON WRC | River Witham | 0 | 0h | - |
| Anglian Water | GT HALE SP | Beck | 0 | 0h | 3,299 h |
| Anglian Water | DRY DODDINGTON TPS | Unnamed Dyke To River Witham | 0 | 0h | - |
| Anglian Water | DRY DODDINGTON TPS | Unnamed Dyke To River Witham | 0 | 0h | - |
| Anglian Water | LONG BENNINGTON-CHURCH ST TPS | Ease Drain | 0 | 0h | - |
| Anglian Water | LONG BENNINGTON-CHURCH ST TPS | Ease Drain | 0 | 0h | - |
| Anglian Water | WILSFORD STW | To Swallow Hole | 0 | 0h | - |
| Anglian Water | HELPRINGHAM STW | Helpringham Eau South Forty Fo | 0 | 0h | - |
| Anglian Water | FOSTON SP | Unnamed Drain | 0 | 0h | - |
| Anglian Water | FULBECK STW | Beck | 0 | 0h | - |
| Anglian Water | Bourne STW_A3 | Bourne Eau + Black Sluice Dyke | 0 | 0h | - |
| Anglian Water | GT GONERBY-BELTON LANE SP | Running Furrows Drain River Wi | 0 | 0h | - |
| Anglian Water | STORM WATER ALMA PARK | Unknown | 0 | 0h | - |
| Anglian Water | HECKINGTON WRC | Heckington Eau | 0 | 0h | - |
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