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Daventry

Polluted by sewage 1,311 times in 2025 lasting 12,488 hours - That's 1.45 years!

Monitoring fell below 50% in some locations so could be more

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

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Live data for Daventry in 2026

So far this year (as of 12 Aug 2026, 21:15) there has been 17,786 hours of sewage overflows, from 136 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 2.06 years!

Totals for Daventry in 2025

56 Sites polluted by Anglian Water Severn Trent Water Thames Water
1,311 sewage dumps
12,488 hours duration
That's 1.45 years. On average 3.6 times a day

Change Over Time

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Waterways in Daventry

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Daventry 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 1 of the total 63 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Anglian Water River Ise GREAT OXENDON STW 88 1,548 95.3
Anglian Water Whilton Branch R Nene WELTON N'HANT WATER RECYCLING CNTR 99 1,238 99.2
Anglian Water Brampton Branch River Nene HOLLOWELL WATER RECYCLING CENTRE 61 1,190 100
Anglian Water Kislingbury Branch River Nene NEWNHAM(NORTHANTS) WRC 76 1,099 99.7
Thames Water Boddington Canal Feeder BODDINGTON WWTW 74 1,080 100
Thames Water River Cherwell EYDON WASTEWATER TREATMENT WORKS 60 872 99.4
Anglian Water R Nene HARLESTONE PS 48 755 100
Anglian Water Everden Brook River Nene EVERDON STW 62 530 83.5
Severn Trent Water Yelvertoft Brook LILBOURNE SEWAGE TREATMENT WORKS 50 448 99.1
Anglian Water Whilton Branch River Nene LONG BUCKBY WATER RECYCLING CENTRE 59 432 100
Thames Water Byfield Brook BYFIELD WASTEWATER TREATMENT WORKS 36 354 100
Severn Trent Water River Leam BRAUNSTON STW 28 239 100
Anglian Water Brixworth Branch Of R Nen HOLCOT SPS 35 206 100
Anglian Water Brampton Branch River Nene CREATON STW 17 197 32.7
Severn Trent Water River Avon NASEBY SEWAGE TREATMENT WORKS 54 194 100
Anglian Water Walgrave Brook WALGRAVE (EX STW) PUMPING STATION 17 192 99.9
Anglian Water River Nene LONG BUCKBY SP 23 192 100
Anglian Water R Nene CHURCH BRAMPTON SP 31 181 98.6
Anglian Water Scaldwell Brook SCALDWELL (EX STW) PUMPING STATION 12 148 100
Anglian Water River Nene ASHBY ST.LEDGERS SPS 19 145 100
Thames Water River Cherwell WOODFORD HALSE SPS 15 141 100
Anglian Water Kislingbury Branch R Nene WEEDON STW 15 139 100
Anglian Water River Ise CLIPSTON STW 35 118 99.85
Anglian Water Brington Brook BRINGTON WATER RECYCLING CENTRE 22 96 69.8
Anglian Water River Nene WHILTON SPS 6 96 95.1
Severn Trent Water Rains Brook KILSBY STW 12 95 99.7
Anglian Water Sywell Reservoir SYWELL PS 21 75 89.3
Anglian Water Unknown River Nene LITTLE BRINGTON SPS 17 51 100
Anglian Water River Nene WEEDON PUMPING STATION 5 48 100
Anglian Water River Ise ARTHINGWORTH TERMINAL PUMPING STAT 8 45 99.6
Anglian Water River Nene EARLS BARTON TPS 20 35 100
Anglian Water River Nene LONG BUCKBY CSO 19 35 99.9
Anglian Water River Nene WEST HADDON SP 16 31 100
Anglian Water River Nene TEETON 5 28 100
Thames Water River Cherwell CHIPPING WARDEN WWTW 11 28 87.7
Anglian Water River Nene GREAT BRINGTON PS 12 27 100
Anglian Water Feeder Stream Daventry Reservo DAVENTRY SEWERAGE SYSTEM 18 26 100
Anglian Water Unknown BOUGHTON CROSSING PS 4 21 100
Anglian Water River Nene GREAT DODDINGTON STW 15 19 100
Anglian Water Un-Named River Nene CREATON SPS 6 13 99.8
Anglian Water Norton Brook Grand Union Canal NORTON(NORTHANTS) STW 15 13 99.9
Anglian Water Stanwell Brook BROOK VALE SSO 5 13 58.1
Anglian Water Brampton Branch River Nene RAVENSTHORPE STW 9 9 100
Anglian Water River Welland SIBBERTOFT STW 26 9 99.2
Anglian Water River Nene FLORE 6 7 87.8
Anglian Water Swanspool Brook MEARS ASHBY MAIN PS 2 2 100
Severn Trent Water River Leam HELLIDON PUMPING STATION 3 2 100
Severn Trent Water River Avon WELFORD STW 1 2 99.8
Anglian Water Faxton Brook PITSFORD SPS 3 1 100
Anglian Water River Nene LT HARROWDEN SSO (6503) 3 1 89.1
Anglian Water Brampton Brach EAST HADDON STW 1 0 77.2
Anglian Water River Nene Brixworth Brnch SPRATTON TPS 1 0 100
Anglian Water River Nene KETTERING RD (2504) 2 0 98
Anglian Water Of Spratton Brook COLD ASHBY CSO 1 0 81
Anglian Water Spratton Brook GUILSBOROUGH SSO 1 0 100
Anglian Water River Ise HARDWICK MEADOW FIELDS CSO 1 0 99.1
Thames Water Highfurlong Brook ASTON LE WALLS WWTW 0 0 98.7
Severn Trent Water Clifton Brook CRICK PUMPING STATION 0 0 98.7
Anglian Water Unknown River Nene NOBOTTLE SPS 0 0 100
Anglian Water River Nene STATION RD SSO E BARTON 0 0 54.5
Anglian Water River Nene THORNBY PS 0 0 100
Anglian Water River Nene Or G.U.C. WHILTON(DAVENTRY) STW 0 0 100
Severn Trent Water Yelvertoft Brook YELVERTOFT STW 0 0 96.4

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

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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