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Polluted by sewage 1,043 times in 2025 lasting 2,861 hours
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Donate NowHere are all the reported sewage overflow totals for Grantham and Bourne 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s 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 | 50 | 485 | 99.4 |
| Anglian Water | Dike River Witham | LONG BENNINGTON-WATER LANE SSO | 21 | 359 | 99.3 |
| Anglian Water | River Witham | CLAYPOLE STW | 30 | 247 | 100 |
| Anglian Water | Bourne Eau + Black Sluice Dyke | BOURNE WATER RECYCLING CENTRE | 43 | 245 | 99.35 |
| Anglian Water | S.Beck N.Beck South Forty Foot | OSBOURNBY WATER RECYCLING CENTRE | 696 | 219 | 100 |
| Anglian Water | Ease Drain | CHURCH ST TPS | 22 | 194 | 100 |
| Anglian Water | Beck | FULBECK STW | 37 | 182 | 99.8 |
| Anglian Water | River Witham | MARSTON (GRANTHAM) WRC | 16 | 162 | 100 |
| Severn Trent Water | River Devon | WOOLSTHORPE SEWAGE TREATMENT WORKS | 15 | 114 | 95.3 |
| Anglian Water | Beck | GREAT HALE PUMPING STN | 15 | 109 | 99.9 |
| Anglian Water | Claypole Drain South | WELFEN LANE TERMINAL PUMPING STATIO | 16 | 104 | 100 |
| Anglian Water | Running Furrows Drain River Wi | GREAT GONERBY PS | 24 | 103 | 99.9 |
| Anglian Water | Grantham Canal | HARLAXTON WATER RECYCLING CENTRE | 10 | 85 | 100 |
| Anglian Water | Running Furrows Drain | MANTHORPE MILL PUMPING STATION | 23 | 71 | 100 |
| Anglian Water | Helpringham Eau South Forty Fo | HELPRINGHAM STW | 7 | 69 | 100 |
| Anglian Water | Unknown South Of Dyke Dr | DYKE PS | 6 | 56 | 100 |
| Anglian Water | Unknown | ALMA PARK STW - SSO | 7 | 25 | 100 |
| Anglian Water | Unnamed Dyke To River Witham | DRY DODDINGTON TPS | 2 | 19 | 100 |
| Anglian Water | To Swallow Hole | WILSFORD STW STORM | 2 | 5 | 100 |
| Anglian Water | Unnamed Drain | FOSTON PS FOSTON | 1 | 0 | 100 |
| Anglian Water | River Witham | GRANTHAM - BRIDGE END GROVE CSO | 0 | 0 | 63.7 |
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. 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.
press [at] top-of-the-poops.org