South Northamptonshire - Live Sewage

Polluted by sewage 10,750 hours in 2026 - That's 1.24 years , monitoring offline 17,685 hours , potential overflows 2,642 hours so far..

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in South Northamptonshire so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

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.

Totals for South Northamptonshire in 2026

Sewage10,750 hours
Monitoring offline17,685 hours
Potential pollution2,642 hours
Storm overflows133

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Constituencies near South Northamptonshire

Daily Data

Jan - 3,461 hours , 1,488 offline
Feb - 6,023 hours , 1,620 offline
Mar - 598 hours , 736 potential
Apr - 8 hours , 720 potential
May - 16 hours , 744 potential
Jun - 278 hours , 441 potential
Jul - 24 hours , 2,232 offline
Aug - 57 hours , 2,232 offline
Sept - 62 hours , 2,352 offline
Oct - 214 hours , 2,307 offline
Nov - 4 hours , 810 offline
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Anglian Water BOZEAT STW Grendon Brook River Nene 79 1,179h 19m -
Anglian Water TOWCESTER STW River Tove River Great Ouse N 55 1,176h 48m -
Anglian Water SILVERSTONE STW River Tove River Gre 59 1,016h 47m -
Anglian Water HACKLETON SP Wootton Brook 43 912h 27m -
Anglian Water HELMDON STW Helmdon Brook River Tove 47 735h 56m -
Anglian Water STOKE BRUERNE STW River Tove 50 697h 35m -
Anglian Water COSGROVE-DOGSMOUTH SO SSO Dogsmouth Brook 45 613h 14m 3,760 h
Anglian Water GREENS NORTON STW River Tove 33 426h 50m -
Anglian Water WOLLASTON-UNITY CLOSE SSO River Nene 89 385h 10m -
Anglian Water ASHTON STW Salcey Brook 27 368h 51m -
Anglian Water YARDLEY HASTINGS WORKS SP Grendon Brook 19 335h 57m -
Anglian Water WHITTLEBURY SP Silverstone Brook 36 288h 55m -
Thames Water Culworth STW Culworth Brook 32 288h 30m -
Anglian Water CROWFIELD SP Syresham Stream 21 255h 29m -
Anglian Water CASTLE ASHBY STW Un Castle Ashby 17 242h 35m 192 h
Thames Water Marston St Lawrence SPS N/A 22 225h 8m 3,279 h
Thames Water Middleton Cheney STW Washle Brook 19 214h 45m -
Thames Water Moreton Pinkney STW Ashby Brook 35 175h 30m 58 h
Anglian Water PAULERSPURY-CUTTLE MILL SP River Tove 22 172h 2m -
Anglian Water ROTHERSTHORPE SP Wotton Brook 20 149h 37m -
Anglian Water BUGBROOKE STW Bugbrooke Brook 33 139h 38m -
Anglian Water MILTON MALSOR-LOWER ROAD SSO Milton Brook 56 100h 49m -
Anglian Water SHUTLANGER SO-FIELD 76 SSO Shutlanger Brook 39 97h 41m -
Anglian Water DENTON TPS (NORTHANTS) Denton Brook 13 90h 22m 0 h
Anglian Water EASTON MAUDIT STW Grendon Brook 23 60h 28m -
Thames Water Greatworth STW Farthinghoestream 11 57h 45m -
Anglian Water GREAT DODDINGTON STW River Nene 13 40h 49m -
Anglian Water HARPOLE-WEEDON RD SSO River Nene 19 38h 44m -
Anglian Water KISLINGBURY-BAPTIST CHAPEL SSOAA River Nene 7 37h 41m 2,642 h
Anglian Water EVENLEY STW Stream River Great Ouse 11 33h 16m -
Thames Water Kings Sutton STW Kings Sutton Stream 9 22h -
Anglian Water GRENDON STW River Chater 16 21h 28m -
Anglian Water BUGBROOKE TPS Bugbrooke Brook 5 17h 14m -
Anglian Water HELMDON TPS River Tove 5 15h 33m -
Thames Water Chacombe STW Chacombe Brook 9 14h 45m 17 h
Anglian Water BOZEAT-SPRING VALE SSO Grendon Brook 20 13h 24m -
Anglian Water POTTERSBURY-CHURCH END SO- SSO Great River Ouse 3 12h 59m 900 h
Anglian Water BRACKLEY (EX STW SITE) TPS River Ouse 13 12h 36m -
Anglian Water WOLLASTON LONDON RD SSO Wollaston Brook 19 11h 27m 0 h
Anglian Water GAYTON STW (S NORTHANTS) Wootton Brook River Nene 9 8h 16m -
Anglian Water YARDLEY HASTINGS STW Grendon Brook 4 8h 9m -
Anglian Water Harpole - Northampton Road Combined Sewer Overflow River Nene 9 6h 53m 1 h
Anglian Water DEANSHANGER SO SSO Great River Ouse 1 4h 44m -
Thames Water Banbury Road (Kings Sutton) SPS Middleton Brook 7 4h 24m -
Anglian Water HARTWELL-COLMAR KENNELS SSO River Tove 3 3h 15m -
Anglian Water PATTISHALL SSO Pattishall Brook 5 2h 33m -
Anglian Water GRENDON-LOWER END SSO Grendon Brook 5 2h 30m -
Anglian Water LITCHBOROUGH STW Farthingstone Brook River Nene 4 2h 12m -
Anglian Water BRAFIELD-LOWER END SP Unknown River Nene 4 1h 45m -
Anglian Water GREENS NORTON-BENGAL MANOR SSO River Tove 5 1h 29m -
Anglian Water GRIMSCOTE SP Bugbrooke Brook 2 0h 59m -
Anglian Water TIFFIELD STW Hulcote Brook River Tove 3 0h 58m -
Anglian Water Cosgrove 23 Main Street Combined Sewer Overflow River Tove 2 0h 45m -
Anglian Water TOWCESTER TPS Silverstone Brook River Tove 1 0h 41m -
Anglian Water BRADDEN SP River Tove 1 0h 14m -
Anglian Water UPPER HEYFORD SSO River Nene 1 0h 8m -
Anglian Water COGENHOE MILL LANE CSO Nene - Conf Brampton Branch To Conf Ise 1 0h 7m 1,910 h
Anglian Water BUGBROOKE STW Bugbrooke Brook 0 0h -
Anglian Water Cosgrove 23 Main Street Combined Sewer Overflow River Tove 0 0h -
Anglian Water BUGBROOKE-ACE LANE SSO Bugbrooke Brook 0 0h -
Thames Water Middleton Cheney STW Washle Brook 0 0h -
Anglian Water WOLLASTON LONDON RD SSO Wollaston Brook 0 0h -
Anglian Water ROTHERSTHORPE SP Wotton Brook 0 0h -
Anglian Water BUGBROOKE TPS Bugbrooke Brook 0 0h -
Anglian Water BLAKESLEY TPS River Tove 0 0h 7,565 h
Anglian Water YARDLEY HASTINGS STW Grendon Brook 0 0h -
Anglian Water PATTISHALL SSO Pattishall Brook 0 0h -
Anglian Water Harpole - Northampton Road Combined Sewer Overflow River Nene 0 0h -
Anglian Water DENTON TPS (NORTHANTS) Denton Brook 0 0h -
Anglian Water TOWCESTER STW River Tove River Great Ouse N 0 0h -
Anglian Water EVENLEY STW Stream River Great Ouse 0 0h -
Anglian Water MILTON MALSOR-LOWER ROAD SSO Milton Brook 0 0h -
Anglian Water COGENHOE MILL LANE CSO Nene - Conf Brampton Branch To Conf Ise 0 0h -
Anglian Water BRACKLEY (EX STW SITE) TPS River Ouse 0 0h -
Anglian Water EASTON MAUDIT STW Grendon Brook 0 0h -
Anglian Water HARTWELL-SALCEY FOREST SSO Salcey Brook 0 0h -
Anglian Water BOZEAT-SPRING VALE SSO Grendon Brook 0 0h -
Anglian Water UPPER HEYFORD SSO River Nene 0 0h -
Anglian Water HELMDON TPS River Tove 0 0h -
Anglian Water TOWCESTER-SPRINGFIELDS SP Silverstone Brook 0 0h -
Anglian Water BRAFIELD-LOWER END SP Unknown River Nene 0 0h -
Anglian Water WOLLASTON A509 ROUNDABOUT CSO#1 Of Wollaston Brook 0 0h -
Anglian Water TIFFIELD STW Hulcote Brook River Tove 0 0h -
Anglian Water GREAT DODDINGTON STW River Nene 0 0h -
Anglian Water BUGBROOKE-ACE LANE SSO Bugbrooke Brook 0 0h -
Anglian Water SILVERSTONE PLAYING FIELD SSO1_NEW Silverstone Brook 0 0h -
Anglian Water WOLLASTON A509 ROUNDABOUT CSO#1 Of Wollaston Brook 0 0h -
Anglian Water SILVERSTONE PLAYING FIELD SSO1_NEW Silverstone Brook 0 0h -
Anglian Water GAYTON STW (S NORTHANTS) Wootton Brook River Nene 0 0h -
Anglian Water BRACKLEY-BRIDGE ST SSO Hinton Stream 0 0h -
Anglian Water ABTHORPE TPS River Tove 0 0h -
Anglian Water HARTWELL-COLMAR KENNELS SSO River Tove 0 0h -
Thames Water Kings Sutton STW Kings Sutton Stream 0 0h -
Anglian Water WOLLASTON-PYGHTLES SSO River Nene 0 0h -
Anglian Water SILVERSTONE STW River Tove River Gre 0 0h -
Anglian Water WOLLASTON-UNITY CLOSE SSO River Nene 0 0h -
Anglian Water KISLINGBURY SP River Nene 0 0h -
Anglian Water GREENS NORTON STW River Tove 0 0h -
Anglian Water HELMDON STW Helmdon Brook River Tove 0 0h -
Anglian Water GRIMSCOTE SP Bugbrooke Brook 0 0h -
Thames Water Marston St Lawrence SPS N/A 0 0h -
Anglian Water ASHTON STW Salcey Brook 0 0h -
Anglian Water POTTERSBURY-CHURCH END SO- SSO Great River Ouse 0 0h -
Anglian Water CROWFIELD SP Syresham Stream 0 0h -
Anglian Water LITCHBOROUGH STW Farthingstone Brook River Nene 0 0h -
Anglian Water Unknown Unknown 0 0h -
Anglian Water HARPOLE-WEEDON RD SSO River Nene 0 0h -
Anglian Water COSGROVE-DOGSMOUTH SO SSO Dogsmouth Brook 0 0h -
Thames Water Greatworth STW Farthinghoestream 0 0h -
Anglian Water SHUTLANGER SO-FIELD 76 SSO Shutlanger Brook 0 0h -
Anglian Water LITTLE HOUGHTON-MEADOW LANE SSO Unknown River Nene 0 0h -
Anglian Water KISLINGBURY SP River Nene 0 0h -
Anglian Water BLAKESLEY TPS River Tove 0 0h -
Anglian Water HACKLETON SP Wootton Brook 0 0h -
Anglian Water CASTLE ASHBY STW Un Castle Ashby 0 0h -
Anglian Water BRADDEN SP River Tove 0 0h -
Anglian Water GREENS NORTON-BENGAL MANOR SSO River Tove 0 0h -
Anglian Water BOZEAT STW Grendon Brook River Nene 0 0h -
Thames Water Culworth STW Culworth Brook 0 0h -
Anglian Water ROADE SO SSO Tove 0 0h -
Anglian Water GRENDON-HALF MOON SSO Grendon Brook 0 0h -
Thames Water Banbury Road (Kings Sutton) SPS Middleton Brook 0 0h -
Anglian Water YARDLEY HASTINGS WORKS SP Grendon Brook 0 0h -
Anglian Water PAULERSPURY-CUTTLE MILL SP River Tove 0 0h -
Thames Water Chacombe STW Chacombe Brook 0 0h -
Anglian Water WHITTLEBURY SP Silverstone Brook 0 0h -
Anglian Water GRENDON STW River Chater 0 0h -
Anglian Water STOKE BRUERNE STW River Tove 0 0h -
Anglian Water KISLINGBURY-BAPTIST CHAPEL SSOAA River Nene 0 0h -
Anglian Water WAPPENHAM TPS River Tove 0 0h -
Anglian Water GRENDON-HALF MOON SSO Grendon Brook 0 0h -
Thames Water Moreton Pinkney STW Ashby Brook 0 0h -
Anglian Water ABTHORPE TPS River Tove 0 0h -

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. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.

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