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Polluted by sewage 850 times in 2024 lasting 7,948 hours
So far this year (as of Apr 30, 2025, 9:00 AM) there has been 1,384 hours of sewage overflows
Your local MP is Gareth Davies (Conservative) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Grantham and Bourne, 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 NowHere are all the reported sewage overflow totals for Grantham and Bourne in 2024. 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 all the declared CSOs appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Anglian Water | River Witham | LONG BENNINGTON STW | 88 | 1,250 | 100 |
| Anglian Water | Beck | FULBECK STW | 95 | 879 | 98.6 |
| Anglian Water | Bourne Eau + Black Sluice Dyke | BOURNE WATER RECYCLING CENTRE | 85 | 813 | 93.8 |
| Anglian Water | River Witham | MARSTON (GRANTHAM) WRC | 54 | 808 | 94.2 |
| Anglian Water | S.Beck N.Beck South Forty Foot | OSBOURNBY WATER RECYCLING CENTRE | 74 | 771 | 100 |
| Anglian Water | River Witham | CLAYPOLE STW | 57 | 702 | 99.1 |
| Anglian Water | Ease Drain | CHURCH ST TPS | 51 | 456 | 100 |
| Anglian Water | Claypole Drain South | WELFEN LANE TERMINAL PUMPING STATIO | 49 | 395 | 100 |
| Anglian Water | Running Furrows Drain River Wi | GREAT GONERBY PS | 50 | 358 | 100 |
| Anglian Water | Grantham Canal | HARLAXTON WATER RECYCLING CENTRE | 51 | 352 | 100 |
| Anglian Water | Unknown South Of Dyke Dr | DYKE PS | 24 | 269 | 100 |
| Anglian Water | Dike River Witham | LONG BENNINGTON-WATER LANE SSO | 27 | 240 | 99.5 |
| Anglian Water | Helpringham Eau South Forty Fo | HELPRINGHAM STW | 17 | 194 | 100 |
| Severn Trent Water | River Devon | WOOLSTHORPE SEWAGE TREATMENT WORKS | 21 | 119 | 64.5 |
| Anglian Water | Running Furrows Drain | MANTHORPE MILL PUMPING STATION | 61 | 105 | 100 |
| Anglian Water | Beck | GREAT HALE PUMPING STN | 22 | 103 | 100 |
| Anglian Water | Unnamed Dyke To River Witham | DRY DODDINGTON TPS | 16 | 88 | 100 |
| Anglian Water | To Swallow Hole | WILSFORD STW STORM | 2 | 19 | 100 |
| Anglian Water | Unnamed Drain | FOSTON PS FOSTON | 3 | 10 | 100 |
| Anglian Water | Unknown | ALMA PARK STW - SSO | 1 | 8 | 100 |
| Anglian Water | River Witham | GRANTHAM - BRIDGE END GROVE CSO | 2 | 0 | 99.7 |
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. This 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