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Louth and Horncastle

Polluted by sewage 498 times in 2025 lasting 3,481 hours

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 Louth and Horncastle in 2026

So far this year (as of 15 Sept 2026, 07:15) there has been 4,258 hours of sewage overflows, from 83 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Sewage without rain in Louth and Horncastle

On 6 occasions since December 2024, no rain fell anywhere in Louth and Horncastle for days — and its CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s discharged anyway.

6 Mar - 7 Mar 2026 3 at once · 47h 4 Mar 2026 3 at once · 39h 25 Dec - 26 Dec 2025 1 at once · 28h

Totals for Louth and Horncastle in 2025

34 Sites polluted by Anglian Water
498 sewage dumps
3,481 hours duration
That's 4.83 months. On average 1.4 times a day

Change Over Time

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Sewage pollution map of Louth and Horncastle: 498 spills in 2025, lasting 3,481 hours, by Anglian Water
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Constituencies near Louth and Horncastle

Waterways in Louth and Horncastle

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Louth and Horncastle 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 39 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 Bain CONINGSBY WATER RECYCLING CENTRE 38 537 100
Anglian Water Old River Bain HORNCASTLE WATER RECYCLING CENTRE 35 500 100
Anglian Water Louth Canal LOUTH STW 40 485 99.6
Anglian Water Old River Bain HORNCASTLE SPORTS GROUND CSO 36 309 100
Anglian Water Old Fleet Drain Louth Canal N NORTH COATES WATER RECYCLING CENTRE 28 236 100
Anglian Water Bond Croft Drain NORTH THORESBY WRC 25 156 100
Anglian Water Holton Beck Louth Canal HOLTON LE CLAY STW 20 155 99.2
Anglian Water River Lymn SPILSBY STW 16 136 100
Anglian Water Wold Grift Drain MABLETHORPE WATER RECYCLING CENTRE 12 134 28.8
Anglian Water River Lud LOUTH-CHURCHLIGHTS CSO 25 112 99.8
Anglian Water Torrington Beck WEST BARKWITH - MAIN ROAD SP 27 110 100
Anglian Water River Lud/Louth Canal SPAW LANE CSO 32 79 100
Anglian Water Louth Canal RIVERHEAD TANK SO 9 76 100
Anglian Water Bond Croft Drain NORTH THORESBY PS 10 75 100
Anglian Water River Lud LOUTH BRACKENBOROUGH ROAD CSO 19 60 97.4
Anglian Water Tetney Haven NEWTON MARSH WATER RECYCLING CENTRE 10 49 100
Anglian Water River Lud WELTON LE WOLD WRC 9 39 99.9
Anglian Water Stewton Beck PASTURES DRIVE CSO 18 32 100
Anglian Water River Lud LOUTH-GRAYS ROAD CSO 16 30 99.9
Anglian Water Old River Bain HORNCASTLE-THORNTON LANE TPS 4 30 100
Anglian Water Long Eau MANBY STW 18 19 100
Anglian Water Town Drain MALBLETHORPE GEORGE STREET CSO 7 17 99.9
Anglian Water Torrington Beck EAST BARKWITH-TORRINGTON ROAD SPS 2 17 100
Anglian Water River Lud LOUTH GRIMSBY ROAD CISTERN CSO 3 15 99.8
Anglian Water Humberston Beck HOLTON TETNEY LANE TPS 2 13 100
Anglian Water River Lud LOUTH-BROADBANK CSO 12 13 77.5
Anglian Water Swine Syke WOODHALL SPA WATER RECYCLING CENTRE 8 11 99.4
Anglian Water Unnamed Catchw WEST THIMBLEBY PS 2 11 100
Anglian Water Unnamed Dyke To Sykes Drain GRIMOLDBY - EASTFIELD LANE SP 1 4 100
Anglian Water Old River Bain BANOVALLUM CSO 4 3 100
Anglian Water River Lud LOVE LANE CSO 2 2 99.9
Anglian Water River Lud LOUTH-RAMSGATE CSO 4 2 92.9
Anglian Water River Lud LOUTH-NEWBRIDGE HILL CSO 3 2 95.5
Anglian Water River Lud/Louth Canal RAMSGATE ROAD CSO 1 0 95
Anglian Water Torrington Beck EAST BARKWITH WILLINGHAM ROAD SP 0 0 100
Anglian Water River Lud LOUTH-BRIDGE STREET CSO 0 0 100
Anglian Water River Lud LOUTH-JAMES STREET CSO 0 0 88.5
Anglian Water Stewton Beck LOUTH-KENWICK CSO 0 0 100
Anglian Water Swine Syke Drain WOODHALL SPA WRC TPS 0 0 100

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.

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Analysing sewage pollution by the Water Industry

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