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North East Somerset and Hanham - 2025 Sewage

Polluted by sewage 11,387 hours in 2025 - That's 1.32 years , monitoring offline 1,496 hours , potential overflows 58 hours

© OpenStreetMap contributors
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 North East Somerset and Hanham for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

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.

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Constituencies near North East Somerset and Hanham

Daily Data

Jan - 2,826 hours , 0 potential
Feb - 1,442 hours , 48 potential
Mar - 346 hours , 1 offline
Apr - 3 hours , 3 potential
May - 4 hours , 1 offline
Jun - 20 hours
Jul - 9 hours , 6 offline
Aug - 17 hours , 3 offline
Sept - 231 hours , 0 offline
Oct - 56 hours , 59 offline
Nov - 1,713 hours , 1,394 offline
Dec - 4,690 hours , 5 potential
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
Wessex Water CHEW STOKE WALLEY COURT ROAD STORM TANK River Chew 86 1,590 h 59m -
Wessex Water CHEW STOKE WALLEY COURT ROAD STORM TANK River Chew 50 1,046 h 3m 9 h
Wessex Water EAST HARPTREE STORM TANK River Chew 54 959 h 15m -
Wessex Water Unknown Unknown 52 946 h 54m -
Wessex Water SALTFORD MEAD LANE STORM TANK River Avon 29 573 h 30m 2 h
Wessex Water PAULTON STORM TANK Cam Brook 31 543 h 22m 2 h
Wessex Water FARMBOROUGH STORM TANK Conygre Brook 27 473 h 34m -
Wessex Water CHEW STOKE BILBIE ROAD River Chew 32 407 h 19m -
Wessex Water UBLEY FROG LANE STORM TANK Congresbury Yeo, Lake 20 368 h 42m -
Wessex Water SALTFORD MEAD LANE STORM TANK River Avon 20 367 h 52m -
Wessex Water EAST HARPTREE STORM TANK River Chew 47 332 h 42m 0 h
Wessex Water UBLEY FROG LANE STORM TANK Congresbury Yeo, Lake 21 317 h 21m -
Wessex Water PAULTON STORM TANK Cam Brook 21 294 h 58m -
Wessex Water FARMBOROUGH STORM TANK Conygre Brook 17 262 h 5m -
Wessex Water COMPTON DANDO TURNBRIDGE River Chew 18 235 h 6m -
Wessex Water STANTON DREW STORM TANK River Chew 14 216 h 6m -
Wessex Water COMPTON DANDO TURNBRIDGE River Chew 16 177 h 12m -
Wessex Water Unknown Unknown 12 149 h 34m -
Wessex Water COMPTON DANDO INLET Bathford Brook 24 144 h 38m -
Wessex Water WILLSBRIDGE River Avon 28 121 h 51m 0 h
Wessex Water PAULTON GOOSARD BRIDGE Cam Brook 18 115 h 20m -
Wessex Water KEYNSHAM STORM TANK River Avon 8 114 h 17m -
Wessex Water WILLSBRIDGE River Avon 19 98 h 10m -
Wessex Water PAULTON GOOSARD BRIDGE Cam Brook 29 98 h 2m 0 h
Wessex Water TEMPLE CLOUD BRIDGE Cam Brook 13 94 h 30m 721 h
Wessex Water CORSTON NEWTON ST LOE Corston Brook 18 77 h 10m 0 h
Wessex Water KEYNSHAM HIGH LEVEL PS AVON MILL LANE River Chew 17 71 h 58m -
Wessex Water CLUTTON GREENBROOK Cam Brook 13 70 h 14m -
Wessex Water KEYNSHAM STORM TANK River Avon 10 66 h 58m -
Wessex Water BISHOP SUTTON River Chew 21 66 h 5m -
Wessex Water HINTON BLEWETT INLET Cam Brook 23 60 h 4m 48 h
Wessex Water KEYNSHAM LOW LEVEL River Chew 8 57 h 24m -
Wessex Water KEYNSHAM HIGH LEVEL PS AVON MILL LANE River Chew 27 56 h 26m -
Wessex Water CHEW MAGNA BATTLE LANE Winford Brook 13 51 h 26m -
Wessex Water HINTON BLEWETT INLET Cam Brook 16 50 h 42m -
Wessex Water CLUTTON GREENBROOK Cam Brook 17 45 h 59m -
Wessex Water CORSTON NEWTON ST LOE Corston Brook 10 43 h 16m 0 h
Wessex Water SALTFORD MEAD LANE River Avon Via Sws 3 41 h 50m -
Wessex Water TIMSBURY RADFORD HILL Cam Brook 20 39 h 27m -
Wessex Water CHEW MAGNA BATTLE LANE Winford Brook 15 39 h 1m -
Wessex Water Unknown Unknown 5 38 h 10m -
Wessex Water TIMSBURY RADFORD HILL Cam Brook 11 36 h 26m -
Wessex Water STANTON DREW STORM TANK River Chew 3 36 h 22m 22 h
Wessex Water HALLATROW Cam Brook 6 35 h 13m -
Wessex Water PAULTON WORKS OFF BRISTOL ROAD Cam Brook 10 32 h 52m -
Wessex Water BISHOP SUTTON River Chew 21 31 h 5m 0 h
Wessex Water Unknown Unknown 9 30 h 39m -
Wessex Water BITTON River Boyd 4 27 h 18m -
Wessex Water BITTON River Boyd 5 26 h 25m -
Wessex Water PAULTON WORKS OFF BRISTOL ROAD Cam Brook 12 24 h 34m -
Wessex Water CHEW MAGNA DUMPERS LANE River Chew 8 21 h 42m -
Wessex Water SALTFORD O/S XX HIGH STREET River Avon 12 19 h 18m -
Wessex Water CHEW MAGNA DUMPERS LANE River Chew 5 17 h 23m -
Wessex Water KEYNSHAM THE HAMS River Avon 10 16 h 47m -
Wessex Water SALTFORD O/S XX HIGH STREET River Avon 21 16 h 14m 0 h
Wessex Water SALTFORD MEAD LANE River Avon Via Sws 2 11 h 6m -
Wessex Water BRISTOL KINGSWOOD ORCHARD VALE NEW O/S 42 Siston Brook Via Sws 7 9 h 46m -
Wessex Water KEYNSHAM LOW LEVEL River Chew 2 9 h 7m -
Wessex Water CLUTTON MAYPOLE FARM Cam Brook 13 7 h 44m -
Wessex Water BRISTOL KINGSWOOD ORCHARD VALE NEW O/S 42 Siston Brook Via Sws 12 6 h 46m -
Wessex Water CLUTTON MAYPOLE FARM Cam Brook 4 6 h 44m -
Wessex Water COMPTON DANDO INLET Bathford Brook 3 6 h 7m -
Wessex Water KEYNSHAM CHARLTON ROAD O/S XXX Charlton Bottom Via Sws 4 5 h 54m -
Wessex Water BRISTOL HANHAM CENTRAL AVENUE River Avon Via Sws 2 5 h 4m 101 h
Wessex Water KEYNSHAM ST LADOC / BRISTOL ROAD Charlton Bottom Via Sws 9 3 h 52m -
Wessex Water CHEW STOKE BILBIE ROAD River Chew 4 3 h 50m -
Wessex Water LOWER STANTON DREW River Chew 3 2 h 52m -
Wessex Water BRISTOL HANHAM CENTRAL AVENUE River Avon Via Sws 6 2 h 26m 608 h
Wessex Water KEYNSHAM CHARLTON ROAD O/S XXX Charlton Bottom Via Sws 2 1 h 54m -
Wessex Water LOWER STANTON DREW River Chew 1 1 h 28m -
Wessex Water SALTFORD SALTFORD HILL River Avon 3 1 h 20m -
Wessex Water BRISTOL WARMLEY MILL LANE AT REAR Siston Brook 2 0 h 48m 3 h
Wessex Water BRISTOL WARMLEY MILL LANE AT REAR Siston Brook 1 0 h 48m -
Wessex Water SALTFORD SALTFORD HILL River Avon 4 0 h 46m -
Wessex Water KEYNSHAM ST LADOC / BRISTOL ROAD Charlton Bottom Via Sws 2 0 h 27m -
Wessex Water SALTFORD WICKHOUSE FARM BATH ROAD River Avon Via Sws 1 0 h 18m -
Wessex Water BRISTOL KINGSWOOD HILL STREET Siston Brook Via Sws 2 0 h 10m -
Wessex Water BRISTOL KINGSWOOD ORCHARD ROAD Siston Brook Via Sws 2 0 h 8m -
Wessex Water Unknown Unknown 0 0 h 0 h
Wessex Water BRISTOL ULLSWATER CLOSE Siston Brook 0 0 h -
Wessex Water Unknown Unknown 0 0 h 13 h
Wessex Water Unknown Unknown 0 0 h -
Wessex Water KEYNSHAM THE HAMS River Avon 0 0 h -
Wessex Water KINGSWOOD WILLSBRIDGE Siston Brook 0 0 h -
Wessex Water Unknown Unknown 0 0 h 0 h
Wessex Water TEMPLE CLOUD BRIDGE Cam Brook 0 0 h -
Wessex Water Unknown Unknown 0 0 h 5 h
Wessex Water Unknown Unknown 0 0 h -
Wessex Water BRISTOL ULLSWATER CLOSE Siston Brook 0 0 h -
Wessex Water BRISTOL KINGSWOOD ORCHARD ROAD Siston Brook Via Sws 0 0 h -
Wessex Water Unknown Unknown 0 0 h 2 h
Wessex Water KINGSWOOD WILLSBRIDGE Siston Brook 0 0 h -
Wessex Water HALLATROW Cam Brook 0 0 h 8 h
Wessex Water BRISTOL KINGSWOOD HILL STREET Siston Brook Via Sws 0 0 h -

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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Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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