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We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Harborough, Oadby and Wigston, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.
Each CSO has a row, the most recent data is on the right hand side.
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Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| Anglian Water | TUR LANGTON TPS | Unknown Langton Brook | 49 | 722 h 13m | 30.08 |
| Anglian Water | LUBENHAM SP | River Welland | 41 | 681 h 42m | 28.38 |
| Anglian Water | MARKET HARBOROUGH STW | River Welland | 41 | 673 h 13m | 28.04 |
| Anglian Water | FOXTON STW (LEICS) | Foxton Brook River Welland | 41 | 626 h 24m | 26.08 |
| Anglian Water | EAST LANGTON STW | Langton Brook River Welland N | 62 | 602 h | 25.08 |
| Anglian Water | Market Harborough South Combined Sewer Overflow | River Welland | 34 | 533 h 14m | 22.21 |
| Anglian Water | MARKET HARBOROUGH-RIVERSIDESSO | River Welland | 23 | 527 h 28m | 21.96 |
| Anglian Water | MARKET HARBOROUGH STW | River Welland | 29 | 465 h 14m | 19.38 |
| Severn Trent Water | GREAT GLEN STW (SSTO) | Burton Brook | 21 | 423 h 3m | 17.62 |
| Anglian Water | LUBENHAM SP | River Welland | 17 | 290 h 50m | 12.08 |
| Anglian Water | EAST LANGTON STW | Langton Brook River Welland N | 25 | 197 h 2m | 8.21 |
| Anglian Water | TUR LANGTON TPS | Unknown Langton Brook | 21 | 191 h 6m | 7.96 |
| Severn Trent Water | FLECKNEY STW (SSTO) | Burton Brook | 22 | 176 h 17m | 7.33 |
| Severn Trent Water | FLECKNEY STW (SSTO) | Burton Brook | 17 | 168 h 21m | 7 |
| Anglian Water | FOXTON STW (LEICS) | Foxton Brook River Welland | 15 | 160 h 45m | 6.67 |
| Anglian Water | MARKET HARBOROUGH-RIVERSIDESSO | River Welland | 14 | 132 h 14m | 5.5 |
| Severn Trent Water | SETTLED STORM OVERFLOW-3PG | Wash Brook | 15 | 117 h 32m | 4.88 |
| Severn Trent Water | GREAT GLEN STW (SSTO) | Burton Brook | 10 | 117 h 13m | 4.88 |
| Severn Trent Water | STORM SEWAGE EFFLUENT GAULBY (STW) | Burton Brook | 20 | 95 h 28m | 3.96 |
| Anglian Water | KIBWORTH STW | Langton Brook | 11 | 84 h 33m | 3.5 |
| Severn Trent Water | SETTLED STORM OVERFLOW-3PG | Wash Brook | 9 | 74 h 22m | 3.08 |
| Anglian Water | KIBWORTH STW | Langton Brook | 13 | 56 h | 2.33 |
| Severn Trent Water | STORM SEWAGE EFFLUENT GAULBY (STW) | Burton Brook | 8 | 53 h 31m | 2.21 |
| Anglian Water | Market Harborough South Combined Sewer Overflow | River Welland | 10 | 48 h | 2 |
| Severn Trent Water | GREAT GLEN - THE NOOK PS (CSO) | River Sence | 8 | 47 h 31m | 1.96 |
| Anglian Water | KIBWORTH STW | Langton Brook | 30 | 43 h 8m | 1.79 |
| Severn Trent Water | WISTOW - NEWTON HARCOURT SPS (CSO) | Newton Harcourt Brook | 11 | 39 h 9m | 1.62 |
| Severn Trent Water | WISTOW - NEWTON HARCOURT SPS (CSO) | Newton Harcourt Brook | 6 | 33 h 32m | 1.38 |
| Severn Trent Water | KINGS NORTON - ILLSTON ROAD (SSO) | River Sence | 3 | 32 h 38m | 1.33 |
| Severn Trent Water | GREAT GLEN - THE NOOK PS (CSO) | River Sence | 3 | 32 h 2m | 1.33 |
| Severn Trent Water | COUNTESTHORPE ROAD SST (SSTO) | River Sence | 3 | 28 h 54m | 1.17 |
| Severn Trent Water | WIGSTON - GAS LANE (CSO) | River Sence | 8 | 13 h 49m | 0.54 |
| Severn Trent Water | WIGSTON - GAS LANE (CSO) | River Sence | 14 | 10 h 48m | 0.42 |
| Severn Trent Water | KINGS NORTON - ILLSTON ROAD (SSO) | River Sence | 2 | 6 h 56m | 0.25 |
| Anglian Water | KIBWORTH-RAILWAY BRIDGE SSO | Langton Brook | 9 | 3 h 59m | 0.12 |
| Severn Trent Water | COUNTESTHORPE ROAD SST (SSTO) | River Sence | 1 | 2 h 50m | 0.08 |
| Severn Trent Water | WIGSTON - MIDLAND COTTAGES (CSO) | River Sence | 6 | 1 h 54m | 0.04 |
| Anglian Water | KIBWORTH-RAILWAY BRIDGE SSO | Langton Brook | 4 | 1 h 23m | 0.04 |
| Severn Trent Water | WIGSTON - MOAT STREET (CSO) | River Sence | 1 | 0 h 35m | 0 |
| Severn Trent Water | WIGSTON - MOAT STREET (CSO) | River Sence | 0 | 0 h | 0 |
| Severn Trent Water | LITTLE STRETTON (STW) | River Sence | 0 | 0 h | 0 |
| Anglian Water | KIBWORTH STW | Langton Brook | 0 | 0 h | 0 |
| Anglian Water | Kibworth Harborough Road CSO | Langton Brook | 0 | 0 h | 0 |
| Anglian Water | KIBWORTH-SPRINGFIELD CRES SSO | Langton Brook | 0 | 0 h | 0 |
| Severn Trent Water | WIGSTON - CROW MILLS PS (CSO) | River Sence | 0 | 0 h | 0 |
| Anglian Water | KIBWORTH-MEADOWSBROOK RD SSO | Langton Brook | 0 | 0 h | 0 |
| Severn Trent Water | WIGSTON - MIDLAND COTTAGES (CSO) | River Sence | 0 | 0 h | 0 |
| Anglian Water | KIBWORTH-MEADOWSBROOK RD SSO | Langton Brook | 0 | 0 h | 0 |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org