Grantham and Bourne was polluted by sewage 850 times in 2024
lasting 7,948 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
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✔ means we have experimental daily data since 2023
Live data for Grantham and Bourne in 2025
So far this year (as of Apr 16, 2025, 5:30 PM) there has been 1,383 hours of sewage overflows
Totals for Grantham and Bourne in 2024
21 Sites polluted by Anglian Water, Severn Trent Water
850 sewage dumps
7,948 h duration
That's 11.04 months. On average 2.3 times a day
Change Over Time
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Daily Data
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.
     Monitoring Online      Monitoring Offline      Polluting      Potentially Polluting      Unknown
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here 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 0 of the total 21 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

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

Data Sources & Accuracy

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.