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South Northamptonshire was polluted by sewage 1,490 times in 2023
lasting 13,541 hours - that's 1.57 years!
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for South Northamptonshire in 2023
55 Sites polluted by Anglian Water, Thames Water
1,490 sewage dumps
13,541 h duration
That's 1.57 years! On average 4.1 times a day
Change Over Time
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Daily Data Since 2023
     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 2023

Here are all the reported sewage overflow totals for South Northamptonshire in 2023. 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 4 of the total 71 CSO locations had reporting enabled for less than half the year, of which 4 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Anglian Water Hulcote Brook River Tove TIFFIELD STW 80 1,633 76.6
Anglian Water River Tove GREENS NORTON WRC 87 1,599 100
Anglian Water River Tove River Gre SILVERSTONE STW 101 1,452 100
Anglian Water Grendon Brook River Nene BOZEAT STW 91 1,409 100
Anglian Water River Tove River Great Ouse N TOWCESTER WATER RECYCLING CENTRE 66 1,108 100
Anglian Water Grendon Brook YARDLEY HASTINGS STW 62 719 100
Anglian Water Farthingstone Brook River Nene LITCHBOROUGH WRC 59 697 100
Anglian Water Dogsmouth Brook COSGROVE CSO 85 673 99.7
Anglian Water Grendon Brook YARDLEY HASTINGS STW PS 79 636 99.1
Anglian Water Wotton Brook ROTHERSTHORPE PS 61 632 100
Anglian Water River Tove STOKE BRUERNE STW 107 413 100
Anglian Water Syresham Stream STORM SEWER OVERFLOW CROWFIELD PS 46 331 100
Anglian Water Denton Brook DENTON TPS (NORTHANTS) 14 303 100
Anglian Water Helmdon Brook River Tove HELMDON WATER RECYCLING CENTRE 35 291 100
Anglian Water River Tove WAPPENHAM SPS EO 12 250 100
Anglian Water Silverstone Brook WHITTLEBURY SEWAGE PUMPING STATION 42 232 100
Anglian Water River Chater GRENDON STW 35 171 99.4
Thames Water Washle Brook MIDDLETON CHENEY WTW 19 159 98.9
Anglian Water Grendon Brook EASTON MAUDIT WRC 33 149 100
Anglian Water River Nene KISLINGBURY PUMPING STATION 30 84 100
Thames Water Chacombe Brook CHACOMBE STW, CHACOMBE, NORTHANTS 29 68 100
Thames Water Ashby Brook MORETON PINKNEY WWTW 18 58 99.8
Anglian Water River Tove PAULERSPURY - CUTTLE MILL PS 24 53 100
Anglian Water River Nene WEEDON ROAD CSO 42 46 100
Anglian Water Stream River Great Ouse EVENLEY STW 21 43 100
Anglian Water River Tove HARTWELL COLMAR KENNELS CSO 13 42 100
Thames Water Kings Sutton Stream KINGS SUTTON STW, KINGS SUTTON, NOR 16 38 99.1
Anglian Water Wollaston Brook WOLLASTON - LONDON ROAD CSO 37 27 100
Thames Water Culworth Brook Culworth 11 24 99.6
Anglian Water River Nene UNITY CLOSE SSO 6 23 100
Anglian Water River Ouse BRACKLEY TERMINAL PS 25 23 100
Anglian Water Bugbrooke Brook GRIMSCOTE PUMPING STATION 18 19 100
Anglian Water Wootton Brook River Nene GAYTON(NORTHANTS) STW 15 19 36
Anglian Water Wootton Brook HACKLETON SPS 2 19 100
Anglian Water River Tove HELMDON TERMINAL PUMPING STATION 7 17 100
Anglian Water River Nene KISLINGBURY BAPTIST CHAPEL SSO 2 11 100
Anglian Water Bugbrooke Brook BUGBROOKE SPS 4 10 100
Anglian Water River Tove BRADDEN PS NO.2 1 9 100
Thames Water Farthinghoestream GREATWORTH STW, GREATWORTH, NORTHAN 3 6 98.1
Anglian Water River Nene HARPOLE - NORTHAMPTON ROAD CSO 8 4 100
Anglian Water Unknown River Nene BRAFIELD SSO 1 4 100
Anglian Water Great River Ouse POTTERSPURY - CHURCH END CSO 4 2 98.2
Thames Water Middleton Brook BANBURY ROAD PUMPING STATION, MIDDL 4 2 94.4
Anglian Water Un Castle Ashby CASTLE ASHBY STW 8 2 100
Anglian Water Grendon Brook SSO 4 2 100
Anglian Water Milton Brook SSO MILTON MALSOR 1 1 100
Anglian Water River Tove BENGAL LANE 5 1 99.4
Anglian Water Of Wollaston Brook A508 ROUNDABOUT 5 1 100
Anglian Water Bugbrooke Brook BUGBROOKE SSO ACE LANE 1 1 100
Anglian Water River Tove BLAKESLEY TPS MANHOLE 135 2 1 1.8
Anglian Water River Nene SSO UPPER HEYFORD 2 1 100
Anglian Water River Tove COSGROVE 23 MAIN STREET CSO 3 0 100
Anglian Water Bugbrooke Brook BUGBROOKE WRC 2 0 100
Anglian Water Hinton Stream BRACKLEY - BRIDGE STREET CSO 1 0 100
Anglian Water Salcey Brook SALCEY FOREST SO 1 0 100
Anglian Water Pattishall Brook EX PATTISHALL STW SSO 0 0 16
Anglian Water Unknown SHUTLANGER 0 0 100
Anglian Water Unknown ROADE SO 0 0 100
Anglian Water Unknown TIFFIELD STW 0 0 0
Anglian Water Grendon Brook GRENDON HALF MOON 0 0 100
Anglian Water Silverstone Brook RES DEV GREEN LANE 0 0 100
Anglian Water Great River Ouse DEANSHANGER CSO 0 0 100
Anglian Water Blisworth Arm Of Wootton Brook MANHOLE NO 6201 0 0 0
Anglian Water River Tove ABTHORPE TERMINAL PUMPING STATION 0 0 100
Anglian Water River Nene WOLLASTON (8250) SSO 0 0 100
Anglian Water Unknown River Nene LITTLE HOUGHTON SSO 0 0 100
Anglian Water Grendon Brook SSO LOWER END 0 0 84.6
Anglian Water Silverstone Brook River Tove TOWCESTER TERMINAL PUMPING STATION 0 0 100
Anglian Water Salcey Brook ASHTON WATER RECYCLING CENTRE 0 0 100
Anglian Water River Tove TOWCESTER SW - PUMPING STATION 0 0 0
Anglian Water Unknown TOWCESTER SW - PUMPING STATION 0 0 0

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.