Louth and Horncastle - 2025 Sewage

Polluted by sewage 7,943 hours in 2025 , monitoring offline 13,654 hours , potential overflows 1,498 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 Louth and Horncastle 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 Louth and Horncastle in 2025

Sewage7,943 hours
Monitoring offline13,654 hours
Potential pollution1,498 hours
Storm overflows83

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Daily Data

Jan - 1,341 hours
Feb - 41 hours
Mar - 14 hours
Apr - 25 hours , 375 offline
May - 2 hours , 744 offline
Jun - 15 hours , 720 offline
Jul - 55 hours , 1,018 offline
Aug - 7 hours , 0 potential
Sept - 82 hours , 2,102 offline
Oct - 26 hours , 1,960 offline
Nov - 4,296 hours , 384 potential
Dec - 2,033 hours , 1,065 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Anglian Water LOUTH STW Louth Canal 38 687h 19m -
Anglian Water SPILSBY STW River Lymn 29 571h 6m -
Anglian Water HOLTON LE CLAY STW Holton Beck Louth Canal 31 558h 6m -
Anglian Water LOUTH-BRACKENBOROUGH RD SSO River Lud 42 554h 31m -
Anglian Water LOUTH SPAW LANE SSO River Lud/Louth Canal 43 549h 9m -
Anglian Water HORNCASTLE-SPORTS GROUND SSO Old River Bain 34 546h 457 h
Anglian Water NORTH THORESBY STW Bond Croft Drain 33 545h 40m -
Anglian Water NORTH THORESBY STW Bond Croft Drain 29 538h 15m -
Anglian Water LOUTH-GRAYS ROAD SSO River Lud 30 526h 29m -
Anglian Water LOUTH STW Louth Canal 25 345h 44m -
Anglian Water CONINGSBY STW River Bain 21 299h 47m -
Anglian Water HORNCASTLE-SPORTS GROUND SSO Old River Bain 26 264h 42m 82 h
Anglian Water CONINGSBY STW River Bain 14 232h 12m -
Anglian Water HORNCASTLE STW Old River Bain 17 195h 44m -
Anglian Water NORTH COTES STW Old Fleet Drain Louth Canal N 18 127h 2m -
Anglian Water Louth-Church Lights Combined Sewer Overflow River Lud 7 104h 43m -
Anglian Water HOLTON LE CLAY STW Holton Beck Louth Canal 11 91h 29m -
Anglian Water NORTH COTES STW Old Fleet Drain Louth Canal N 9 89h 19m -
Anglian Water NORTH THORESBY STW Bond Croft Drain 13 84h 7m -
Anglian Water CSO and EO at West Barkwith-Main Road SP Torrington Beck 12 72h 49m -
Anglian Water MABLETHORPE STW Wold Grift Drain 5 67h 28m -
Anglian Water LOUTH-BRACKENBOROUGH RD SSO River Lud 14 66h 27m -
Anglian Water STRUBBY STW Un Wold Grift D 7 64h 19m 2,919 h
Anglian Water WOODHALL SPA STW Swine Syke 7 60h 34m -
Anglian Water WOODHALL SPA STW TPS Swine Syke Drain 10 53h 12m -
Anglian Water LOUTH-GRIMSBY RD CISTERN SSO River Lud 7 42h 2m -
Anglian Water NORTH THORESBY STW Bond Croft Drain 6 41h 29m -
Anglian Water WELTON-LE-WOLD STW River Lud 11 40h 30m 1,690 h
Anglian Water LOUTH-RIVERHEAD TANK Louth Canal 6 39h 52m 3 h
Anglian Water CSO and EO at West Barkwith-Main Road SP Torrington Beck 12 36h 54m -
Anglian Water LOUTH-BROADBANK SSO River Lud 5 34h 13m -
Anglian Water LOUTH SPAW LANE SSO River Lud/Louth Canal 9 33h 4m -
Anglian Water LOUTH-RIVERHEAD TANK Louth Canal 4 30h 43m 556 h
Anglian Water MABLETHORPE STW Wold Grift Drain 5 29h 30m -
Anglian Water THIMBLEBY-MILL LANE SP River Box 5 24h 39m -
Anglian Water TETNEY-NEWTON MARSH STW Tetney Haven 4 24h 17m 5,620 h
Anglian Water WOODHALL SPA STW TPS Swine Syke Drain 4 20h 47m -
Anglian Water SPILSBY STW River Lymn 4 20h 35m -
Anglian Water Mablethorpe George Street CSO Town Drain 4 19h 45m -
Anglian Water HORNCASTLE-THORNTON LA TPS Old River Bain 1 19h 29m -
Anglian Water LOUTH-PASTURES DRIVE CSO Stewton Beck 5 18h 32m 342 h
Anglian Water Louth-Church Lights Combined Sewer Overflow River Lud 18 18h 26m 7 h
Anglian Water E BARKWITH-TORRINGTON RD SP Torrington Beck 3 17h 15m -
Anglian Water THIMBLEBY-MILL LANE SP River Box 2 16h 27m -
Anglian Water LOUTH-PASTURES DRIVE CSO Stewton Beck 11 14h 28m -
Anglian Water LOUTH-GRAYS ROAD SSO River Lud 5 12h 46m -
Anglian Water LOUTH-BROADBANK SSO River Lud 10 12h 39m -
Anglian Water THIMBLEBY-MAIN ROAD SP Unnamed Catchw 3 12h 22m -
Anglian Water HORNCASTLE-THORNTON LA TPS Old River Bain 2 10h 30m -
Anglian Water HOLTON-TETNEY LA TPS Humberston Beck 1 9h 14m -
Anglian Water MANBY STW Long Eau 5 9h 4m 0 h
Anglian Water ABY-SCHOOL LA TPS Un-Named Dyke To Great Eau 1 7h 29m -
Anglian Water MANBY STW Long Eau 2 5h 46m -
Anglian Water HORNCASTLE-BANOVALLUM OV Old River Bain 1 4h 44m -
Anglian Water GRIMOLDBY-EASTFIELD LA SP Unnamed Dyke To Sykes Drain 1 4h 14m -
Anglian Water HOLTON-TETNEY LA TPS Humberston Beck 2 3h 58m -
Anglian Water HORNCASTLE-BANOVALLUM OV Old River Bain 2 3h 30m -
Anglian Water LOUTH-RAMSGATE SSO River Lud 2 3h -
Anglian Water ALFORD STW Holme Fen Drain 2 2h 15m -
Anglian Water LOUTH-NEWBRIDGE HILL SSO River Lud 2 1h 15m -
Anglian Water ABY-SCHOOL LA TPS Un-Named Dyke To Great Eau 2 0h 42m -
Anglian Water Ramsgate Road combined sewer overflow River Lud/Louth Canal 1 0h 30m -
Anglian Water Mablethorpe George Street CSO Town Drain 1 0h 14m -
Anglian Water WELTON-LE-WOLD STW River Lud 1 0h 5 h
Anglian Water HORNCASTLE STW Old River Bain 1 0h 1,144 h
Anglian Water E BARKWITH-WILLINGHAM RD SP Torrington Beck 0 0h -
Anglian Water TETNEY-NEWTON MARSH STW Tetney Haven 0 0h 1,160 h
Anglian Water LOUTH-KENWICK ROAD SSO Stewton Beck 0 0h -
Anglian Water E BARKWITH-WILLINGHAM RD SP Torrington Beck 0 0h -
Anglian Water ALFORD STW Holme Fen Drain 0 0h -
Anglian Water WOODHALL SPA STW Swine Syke 0 0h -
Anglian Water THIMBLEBY-MAIN ROAD SP Unnamed Catchw 0 0h -
Anglian Water LOUTH-RAMSGATE SSO River Lud 0 0h -
Anglian Water LOUTH-KENWICK ROAD SSO Stewton Beck 0 0h 0 h
Anglian Water LOUTH-JAMES ST SSO River Lud 0 0h -
Anglian Water E BARKWITH-TORRINGTON RD SP Torrington Beck 0 0h -
Anglian Water LOUTH-NEWBRIDGE HILL SSO River Lud 0 0h -
Anglian Water Ramsgate Road combined sewer overflow River Lud/Louth Canal 0 0h -
Anglian Water LOUTH-LOVE LN/WESTGATE SSO River Lud 0 0h -
Anglian Water LOUTH-BRIDGE ST SSO River Lud 0 0h -
Anglian Water LOUTH-GRIMSBY RD CISTERN SSO River Lud 0 0h -
Anglian Water GRIMOLDBY-EASTFIELD LA SP Unnamed Dyke To Sykes Drain 0 0h -
Anglian Water STRUBBY STW Un Wold Grift D 0 0h 1,162 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

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.