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Bassetlaw - Live Sewage

Polluted by sewage 3,346 hours in 2026 , monitoring offline 885 hours , potential overflows 4 hours so far..

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

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Bassetlaw 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.

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Daily Data

Jan - 576 hours , 294 offline
Feb - 2,034 hours , 4 potential
Mar - 518 hours , 259 offline
Apr - 2 hours , 125 offline
May - 16 hours , 24 offline
Jun - 33 hours , 51 offline
Jul - 0 hours , 60 offline
Aug - 156 hours , 18 offline
Sept - 7 hours , 43 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Severn Trent Water HODSOCK STW (SSTO) Carlton Beck 65 1,275h 58m 25 h
Severn Trent Water NETHER LANGWITH STW (SSTO) River Poulter 36 564h 12m -
Severn Trent Water RETFORD STW (SSTO) River Idle 32 311h 16m 36 h
Severn Trent Water WORKSOP - MANTON STW (SSTO) River Ryton 25 255h 39m -
Severn Trent Water OLDCOTES - BLYTH ROAD (SSO) Radford Brook 10 200h 54m 65 h
Severn Trent Water NETHER LANGWITH - MAIN ROAD (CSO) River Poulter 43 197h 19m -
Severn Trent Water CRESWELL - CRAGS ROAD PS (CSO) Millwood Brook - Creswell Arm 30 165h 9m 84 h
Severn Trent Water BECKINGHAM - TETHERING GRASS LANE (SSO) Tetheringrass Drain 13 72h 27m -
Severn Trent Water WALKERINGHAM STW (SSTO) River Trent 11 66h 51m 53 h
Severn Trent Water RETFORD - BOLHAM LANE PS (CSO) Carr Dyke 8 46h 11m -
Severn Trent Water HARWORTH - CHURCH ENTRANCE (SSO) Harworth Dyke 9 38h 34m -
Severn Trent Water NORTON (STW) River Poulter 12 28h 15m -
Severn Trent Water RETFORD - KINGS PARK (CSO) River Idle/Maun/Carr Dyke 7 27h 40m -
Severn Trent Water HARWORTH STW (SSTO) Harworth Sewage Dyke 5 21h 40m -
Severn Trent Water WORKSOP - MANTON STW 6DWF (CSO) River Ryton 9 20h 13m -
Severn Trent Water HARWORTH STW (CSO) Harworth Sewage Dyke 13 15h 43m 0 h
Severn Trent Water HARWORTH - CHURCH WALK (CSO) Harworth Sewage Dike 5 8h 19m -
Severn Trent Water CARLTON IN LINDRICK -WATER LA FOUL (SSO) Walling Wells Brook 4 7h 55m 240 h
Severn Trent Water BLYTH NORNAY - BAWTRY ROAD (SSO) Oldcoates Dyke 6 7h 51m 3 h
Severn Trent Water WORKSOP - EASTGATE (CSO) River Ryton 6 4h 56m -
Severn Trent Water RANSKILL STW (SSTO) Ranskill Brook 5 3h 34m -
Severn Trent Water LANGWITH - THE WOODLANDS (CSO&EO) Dry Ditch 1 2h 34m 4 h
Severn Trent Water WORKSOP - KILTON HILL (CSO) River Ryton 3 1h 1m -
Severn Trent Water MATTERSEY - CHURCH HOUSE (SSO) River Idle 1 0h 49m -
Severn Trent Water LONDON RD (CSO) River Idle 3 0h 46m -
Severn Trent Water MATTERSEY THORPE (STW) River Idle 2 0h 13m 38 h
Severn Trent Water OLDCOTES - BLYTH ROAD (SSO) Radford Brook 0 0h -
Severn Trent Water MATTERSEY THORPE (STW) River Idle 0 0h -
Severn Trent Water RETFORD - BOLHAM LANE PS (CSO) Carr Dyke 0 0h -
Severn Trent Water BLYTH - BAWTRY ROAD (SSO) River Ryton 0 0h -
Severn Trent Water RANSKILL STW (SSTO) Ranskill Brook 0 0h -
Severn Trent Water HODSOCK STW (SSTO) Carlton Beck 0 0h -
Severn Trent Water WHALEY THORNS - MAIN RD/LIMES AVE (SO) River Poulter 0 0h -
Severn Trent Water RETFORD - KINGS PARK (CSO) River Idle/Maun/Carr Dyke 0 0h -
Severn Trent Water HARWORTH STW (SSTO) Harworth Sewage Dyke 0 0h -
Severn Trent Water MATTERSEY - CHURCH HOUSE (SSO) River Idle 0 0h -
Severn Trent Water WORKSOP - MANTON STW (SSTO) River Ryton 0 0h -
Severn Trent Water CARLTON IN LINDRICK -WATER LA FOUL (SSO) Walling Wells Brook 0 0h -
Severn Trent Water NORTON (STW) River Poulter 0 0h -
Severn Trent Water RETFORD - BRACKEN LANE (SSO) Retford Beck 0 0h 47 h
Severn Trent Water BLYTH NORNAY - BAWTRY ROAD (SSO) Oldcoates Dyke 0 0h -
Severn Trent Water LONDON RD (CSO) River Idle 0 0h -
Severn Trent Water BLYTH - BAWTRY ROAD (SSO) River Ryton 0 0h 287 h
Severn Trent Water NETHER LANGWITH - MAIN ROAD (CSO) River Poulter 0 0h -
Severn Trent Water HARWORTH - CHURCH ENTRANCE (SSO) Harworth Dyke 0 0h -
Severn Trent Water HARWORTH - CHURCH WALK (CSO) Harworth Sewage Dike 0 0h -
Severn Trent Water BECKINGHAM - TETHERING GRASS LANE (SSO) Tetheringrass Drain 0 0h -
Severn Trent Water RETFORD STW (SSTO) River Idle 0 0h -
Severn Trent Water LANGWITH - THE WOODLANDS (CSO&EO) Dry Ditch 0 0h -
Severn Trent Water NETHER LANGWITH STW (SSTO) River Poulter 0 0h -
Severn Trent Water HARWORTH STW (CSO) Harworth Sewage Dyke 0 0h -
Severn Trent Water WORKSOP - MANTON STW 6DWF (CSO) River Ryton 0 0h -
Severn Trent Water WORKSOP - EASTGATE (CSO) River Ryton 0 0h -
Severn Trent Water WALKERINGHAM STW (SSTO) River Trent 0 0h -
Severn Trent Water CRESWELL - CRAGS ROAD PS (CSO) Millwood Brook - Creswell Arm 0 0h -
Severn Trent Water WORKSOP - KILTON HILL (CSO) River Ryton 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.