Gainsborough - 2025 Sewage

Polluted by sewage 12,516 hours in 2025 - That's 1.45 years , potential overflows 1,091 hours

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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 Gainsborough 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.

Totals for Gainsborough in 2025

Sewage12,516 hours
Monitoring offline1 hours
Potential pollution1,091 hours
Storm overflows75

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Daily Data

Jan - 1,463 hours
Feb - 102 hours
Mar - 18 hours
Apr - 6 hours
May - 31 hours
Jun - 16 hours
Jul - 200 hours , 983 potential
Aug - 3 hours , 82 potential
Sept - 148 hours
Oct - 107 hours
Nov - 6,491 hours , 24 potential
Dec - 3,900 hours , 1 offline
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Anglian Water NETTLEHAM STW Nettleham Beck 88 1,243h 1m -
Anglian Water NETTLEHAM STW Nettleham Beck 41 887h 8m -
Anglian Water STURTON BY STOW STW Sturton Beck River Till 52 732h 10m -
Anglian Water FISKERTON STW North Delph 41 722h 31m -
Anglian Water DUNHOLME STW Dunholme Beck 37 671h 47m -
Anglian Water WILLINGHAM STW River Till River Witham 58 644h 22m -
Anglian Water TEALBY STW River Rase 42 639h 42m -
Anglian Water S KELSEY-NORTH SP South Kelsey Drain 53 619h 48m -
Anglian Water SAXILBY STW Fossdyke Canal 37 584h 32m -
Anglian Water SAXILBY-HIGH ST/MANOR RD SSO Fossdyke Navigation Canal 37 553h 4m 376 h
Anglian Water Market Rasen-Caistor Road Combined Sewer Overflow River Rase 31 543h 12m 689 h
Anglian Water GRASBY WRC Kettleby Beck 32 534h 34m -
Anglian Water Hemswell (RAF) Camp Sewage Treatment Works Of Black Dyke 26 510h 15m -
Anglian Water DUNHOLME STW Dunholme Beck 28 420h 5m 13 h
Anglian Water FISKERTON STW North Delph 24 402h 4m -
Anglian Water STURTON BY STOW STW Sturton Beck River Till 21 349h 16m -
Anglian Water Hemswell (RAF) Camp Sewage Treatment Works Of Black Dyke 34 332h 29m -
Anglian Water TEALBY STW River Rase 21 289h 52m 1 h
Severn Trent Water GAINSBOROUGH - NORTH WARREN ROAD (CSO) River Trent 55 281h 28m -
Anglian Water GRASBY WRC Kettleby Beck 19 258h 21m -
Anglian Water S KELSEY-NORTH SP South Kelsey Drain 22 221h 46m -
Anglian Water SAXILBY STW Fossdyke Canal 25 178h 48m -
Anglian Water WILLINGHAM STW River Till River Witham 17 150h 36m -
Severn Trent Water SCOTTER STW (SSTO) River Eau 12 118h 38m -
Severn Trent Water SCOTTER STW (SSTO) River Eau 13 110h 14m -
Severn Trent Water GAINSBOROUGH - BRIDGE STREET (CSO) River Trent 27 98h 3m -
Severn Trent Water GAINSBOROUGH - NORTH WARREN ROAD (CSO) River Trent 13 62h 53m -
Anglian Water Market Rasen-Caistor Road Combined Sewer Overflow River Rase 8 38h 35m 10 h
Anglian Water SCOTHERN TPS Scothern Fen Drain 4 33h 59m -
Anglian Water High Street, Fiskerton Unknown North Delph 5 31h -
Anglian Water WADDINGHAM-THE GREEN TPS Waddingham Beck 5 30h 39m -
Severn Trent Water GAINSBOROUGH - BRIDGE STREET (CSO) River Trent 22 28h 7m -
Severn Trent Water GAINSBOROUGH - LEA ROAD STW (SSTO) River Trent 3 25h 41m -
Anglian Water SCOTHERN TPS Scothern Fen Drain 5 19h 45m -
Anglian Water S KELSEY-SOUTH SP Dyke South Kelsey Catchwater 11 19h 24m -
Anglian Water KEELBY STW Caddle Beck 7 17h 28m -
Anglian Water SAXILBY-HIGH ST/MANOR RD SSO Fossdyke Navigation Canal 7 15h 52m -
Anglian Water OWMBY STW Unknown 6 15h 36m -
Severn Trent Water BLYTON - HIGH ST PS (BLACK HORSE) (CSO) Laughton Highland Drain 8 14h 23m -
Anglian Water WADDINGHAM-THE GREEN TPS Waddingham Beck 2 13h 50m -
Anglian Water CSO and EO at Glentham - Caenby Road SP Unnamed Dyke To Seggimoor Beck 3 12h 18m -
Anglian Water High Street, Fiskerton Unknown North Delph 2 5h 30m -
Severn Trent Water AISBY STW (CSO) Aisby Beck 4 5h -
Anglian Water SNITTERBY SP Un Black Dyke 1 4h 49m -
Anglian Water S KELSEY-SOUTH SP Dyke South Kelsey Catchwater 1 3h 54m -
Anglian Water SAXILBY-HIGH ST/WEST BANK SSO Fossdyke Navigation Canal 8 3h 44m -
Anglian Water CAISTOR STW Caistor Canal River Ancholme 4 3h 15m -
Anglian Water NORTH KELSEY STW North Kelsey Beck Rive 2 3h 2m -
Severn Trent Water AISBY STW (CSO) Aisby Beck 3 2h 30m -
Anglian Water OWMBY STW Unknown 3 2h 15m -
Anglian Water BARDNEY STW River Witham 4 1h 20m -
Severn Trent Water BLYTON - HIGH ST PS (BLACK HORSE) (CSO) Laughton Highland Drain 1 1h 12m -
Anglian Water REEPHAM-KENNEL LA/CLOUGH HIL Reepham Beck 2 0h 44m -
Severn Trent Water GAINSBOROUGH - LEA ROAD STW (SSTO) River Trent 1 0h 40m -
Severn Trent Water NORTHORPE (STW) River Eau 3 0h 34m -
Anglian Water CAISTOR STW Caistor Canal River Ancholme 2 0h 17m -
Anglian Water N KELSEY-BRIGG RD TPS Dyke North Kelsey Beck 1 0h 1m -
Anglian Water NORTH KELSEY STW North Kelsey Beck Rive 0 0h -
Severn Trent Water PILHAM (CSO) Laughton Drain 0 0h -
Anglian Water Kexby_#4 Kexby Lane SP Unnamed Dyke Leading Padmoor D 0 0h -
Anglian Water KEELBY STW Caddle Beck 0 0h -
Anglian Water FISKERTON SP North Delph 0 0h -
Anglian Water BARDNEY STW River Witham 0 0h -
Anglian Water SAXILBY-HIGH ST/WEST BANK SSO Fossdyke Navigation Canal 0 0h -
Anglian Water FISKERTON SP North Delph 0 0h -
Anglian Water MARKET RASEN STW TPS River Rase 0 0h -
Anglian Water NETTLEHAM WRC Nettleham Beck 0 0h -
Severn Trent Water NORTHORPE (STW) River Eau 0 0h -
Anglian Water N KELSEY-BRIGG RD TPS Dyke North Kelsey Beck 0 0h -
Anglian Water REEPHAM STW (LINCS) Reepham Beck Barling Eau Rive 0 0h -
Anglian Water SNITTERBY SP Un Black Dyke 0 0h -
Anglian Water REEPHAM-KENNEL LA/CLOUGH HIL Reepham Beck 0 0h -
Anglian Water MARKET RASEN STW TPS River Rase 0 0h -
Anglian Water MARKET RASEN-GALLAMORE RD SP River Rase 0 0h -
Anglian Water CSO and EO at Glentham - Caenby Road SP Unnamed Dyke To Seggimoor Beck 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.