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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 Melton and Syston, 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 | KNOSSINGTON STW | Unnamed Stream River Gwash | 80 | 713 h 23m | 29.71 |
| Anglian Water | KNOSSINGTON STW | Unnamed Stream River Gwash | 31 | 570 h 7m | 23.75 |
| Severn Trent Water | WYMONDHAM (STW) | River Wreake | 26 | 391 h 58m | 16.29 |
| Severn Trent Water | MELTON - LEICESTER BRIDGE O/L F (CSO) | River Wreake | 17 | 350 h 41m | 14.58 |
| Severn Trent Water | GADDESBY - NETHER END (CSO) | Gaddesby Brook | 37 | 322 h 1m | 13.42 |
| Severn Trent Water | HARBY STW (SSTO) | Stroom Dyke | 30 | 286 h 42m | 11.92 |
| Severn Trent Water | NETHER BROUGHTON STW (SSTO) | Dalby Brook | 29 | 281 h 53m | 11.71 |
| Severn Trent Water | HARBY STW (SSTO) | Stroom Dyke | 18 | 281 h 28m | 11.71 |
| Severn Trent Water | WYMONDHAM (STW) | River Wreake | 15 | 275 h 21m | 11.46 |
| Severn Trent Water | EATON - DISTRICT (SSO) | River Devon | 8 | 163 h 17m | 6.79 |
| Severn Trent Water | BOTTESFORD STW (SSTO) | River Devon | 30 | 136 h 11m | 5.67 |
| Severn Trent Water | BURTON LAZARS STW (CSO) | Burton Brook | 9 | 111 h 14m | 4.62 |
| Severn Trent Water | WYCOMB - MAIN ROAD (CSO) | River Eye + Various Brooks | 6 | 98 h 35m | 4.08 |
| Severn Trent Water | MELTON - ASFORDBY ROAD XXX (CSO) | River Wreake | 26 | 84 h 16m | 3.5 |
| Severn Trent Water | SSTO OVERFLOW-3PG | River Devon | 8 | 79 h 42m | 3.29 |
| Severn Trent Water | FRISBY ON THE WREAKE (CSO) | River Wreake | 11 | 79 h 40m | 3.29 |
| Severn Trent Water | COLD OVERTON STW (SSTO) | Whissendine Brook | 17 | 76 h 44m | 3.17 |
| Severn Trent Water | SSTO OVERFLOW-3PG | River Devon | 38 | 74 h 7m | 3.08 |
| Severn Trent Water | NETHER BROUGHTON STW (SSTO) | Dalby Brook | 10 | 68 h 1m | 2.83 |
| Severn Trent Water | WALTHAM (STW) | Thorpe Brook | 7 | 60 h 25m | 2.5 |
| Severn Trent Water | BURTON LAZARS STW (CSO) | Burton Brook | 10 | 57 h 28m | 2.38 |
| Severn Trent Water | FREEBY STW (CSO) | Freeby Brook | 23 | 57 h 10m | 2.38 |
| Severn Trent Water | ASFORDBY PS (CSO) | River Wreake | 4 | 56 h 12m | 2.33 |
| Severn Trent Water | SOMERBY STW (CSO) | Somerby Brook | 18 | 54 h 8m | 2.25 |
| Severn Trent Water | SYSTON - TURN STREET (SSO) | Barkby Brook | 6 | 53 h 41m | 2.21 |
| Severn Trent Water | BARSBY - MAIN STREET (CSO) | Barsby Brook | 14 | 52 h 51m | 2.17 |
| Severn Trent Water | LONG CLAWSON - HOSE LANE (CSO) | River And Canal | 12 | 51 h 28m | 2.12 |
| Severn Trent Water | ROTHERBY - MAIN STREET (SSO) | River Wreake | 15 | 50 h 59m | 2.08 |
| Severn Trent Water | MELTON - LEICESTER BRIDGE O/L G (CSO) | River Wreake | 5 | 49 h 16m | 2.04 |
| Severn Trent Water | FREEBY STW (CSO) | Freeby Brook | 8 | 48 h 43m | 2 |
| Severn Trent Water | TWYFORD - MAIN ROAD (CSO) | Gaddesby Brook | 10 | 48 h 37m | 2 |
| Severn Trent Water | SAXELBY - SAXELBYE LANE (SSO) | River Wreake | 8 | 45 h 47m | 1.88 |
| Severn Trent Water | REDMILE (STW) | Grimmer | 14 | 44 h 57m | 1.83 |
| Severn Trent Water | ASFORDBY - RIVERSIDE WALK (CSO) | River Wreake | 7 | 44 h | 1.83 |
| Severn Trent Water | MELTON STW (SSTO) | River Wreake | 17 | 41 h 58m | 1.71 |
| Severn Trent Water | LONG CLAWSON - HOSE LANE (CSO) | River And Canal | 7 | 41 h 3m | 1.71 |
| Severn Trent Water | WOODHOUSE - RUSHEY FIELDS LANE (SSO) | Various Sites River Soar | 3 | 40 h 33m | 1.67 |
| Severn Trent Water | ASFORDBY - PUMP LANE CSO | River Wreake | 12 | 38 h 43m | 1.58 |
| Severn Trent Water | MELTON MOWBRAY - DALBY ROAD (CSO) | River Wreake | 4 | 38 h 17m | 1.58 |
| Severn Trent Water | ASFORDBY - RIVERSIDE WALK (CSO) | River Wreake | 6 | 36 h 12m | 1.5 |
| Severn Trent Water | GREAT DALBY - MAIN STREET (SSO) | River Wreake | 7 | 35 h 8m | 1.46 |
| Severn Trent Water | SEAGRAVE - BUTCHERS LANE (CSO) | River Soar | 6 | 33 h 59m | 1.38 |
| Severn Trent Water | HARBY - WATSONS LANE (CSO) | Stroom Dyke | 6 | 33 h 5m | 1.38 |
| Severn Trent Water | MELTON MOWBRAY - DALBY ROAD (CSO) | River Wreake | 4 | 32 h 46m | 1.33 |
| Severn Trent Water | TWYFORD - MAIN ROAD (CSO) | Gaddesby Brook | 4 | 32 h 34m | 1.33 |
| Severn Trent Water | MELTON - LEICESTER BRIDGE O/L D (CSO) | River Wreake | 4 | 32 h 33m | 1.33 |
| Severn Trent Water | PLUNGAR - GRANBY LANE - PELLS FARM (SSO) | Grantham Canal | 20 | 32 h 14m | 1.33 |
| Severn Trent Water | WALTHAM (STW) | Thorpe Brook | 9 | 29 h 54m | 1.21 |
| Severn Trent Water | FRISBY ON THE WREAKE (CSO) | River Wreake | 4 | 29 h 11m | 1.21 |
| Severn Trent Water | GADDESBY - NETHER END (CSO) | Gaddesby Brook | 9 | 29 h 8m | 1.21 |
| Severn Trent Water | QUENIBOROUGH EAST (CSO) | Queniborough Brook | 4 | 29 h 7m | 1.21 |
| Severn Trent Water | CHADWELL - XXXXX FARM (CSO) | Thorpe Brook | 2 | 28 h 47m | 1.17 |
| Severn Trent Water | QUENIBOROUGH EAST (CSO) | Queniborough Brook | 4 | 25 h 24m | 1.04 |
| Severn Trent Water | EATON - DISTRICT (SSO) | River Devon | 3 | 25 h 23m | 1.04 |
| Severn Trent Water | CHADWELL - XXXXX FARM (CSO) | Thorpe Brook | 3 | 25 h 7m | 1.04 |
| Severn Trent Water | THRUSSINGTON - REARSBY ROAD (SSO) | River Wreake | 3 | 24 h 57m | 1 |
| Severn Trent Water | REARSBY - MILL ROAD PS (CSO) | Rearsby Brook | 5 | 23 h 26m | 0.96 |
| Severn Trent Water | THRUSSINGTON - REARSBY ROAD (SSO) | River Wreake | 7 | 23 h 11m | 0.96 |
| Severn Trent Water | SOMERBY STW (CSO) | Somerby Brook | 6 | 23 h 10m | 0.96 |
| Severn Trent Water | MELTON - NOTTINGHAM RD/WELBY LN (CSO) | River Wreake | 9 | 22 h 52m | 0.92 |
| Severn Trent Water | THORPE SATCHVILLE (STW) | Gaddesby Brook | 5 | 22 h 48m | 0.92 |
| Severn Trent Water | BOTTESFORD STW (SSTO) | River Devon | 7 | 22 h 25m | 0.92 |
| Severn Trent Water | ASHBY FOLVILLE - FOLVILLE STREET (CSO) | Barsby Brook | 3 | 22 h 9m | 0.92 |
| Severn Trent Water | MELTON - ASFORDBY ROAD XXX (CSO) | River Wreake | 7 | 19 h 1m | 0.79 |
| Severn Trent Water | SEAGRAVE - BUTCHERS LANE (CSO) | River Soar | 3 | 17 h 4m | 0.71 |
| Severn Trent Water | STONESBY - KING STREET LANE (SSO) | River Eye + Various Brooks | 1 | 16 h 55m | 0.67 |
| Severn Trent Water | BARSBY - MAIN STREET (CSO) | Barsby Brook | 4 | 16 h 32m | 0.67 |
| Severn Trent Water | ASHBY FOLVILLE - FOLVILLE STREET (CSO) | Barsby Brook | 3 | 16 h 31m | 0.67 |
| Severn Trent Water | WOODHOUSE - RUSHEY FIELDS LANE (SSO) | Various Sites River Soar | 2 | 16 h 2m | 0.67 |
| Severn Trent Water | COLD OVERTON STW (SSTO) | Whissendine Brook | 5 | 15 h 12m | 0.62 |
| Severn Trent Water | MELTON - BURTON ROAD/ANKLE HILL (CSO) | River Wreake | 3 | 14 h 26m | 0.58 |
| Severn Trent Water | BARKBY - FIELD 3234 (CSO) | Barkby Brook | 1 | 14 h 24m | 0.58 |
| Severn Trent Water | MELTON - WILLOUGHBY CLOSE XX (CSO) | River Wreake | 1 | 13 h 59m | 0.54 |
| Severn Trent Water | REARSBY - MILL ROAD PS (CSO) | Rearsby Brook | 4 | 13 h 44m | 0.54 |
| Severn Trent Water | STATHERN - HARBY LANE (CSO) | Stroom Dyke | 8 | 12 h 54m | 0.5 |
| Severn Trent Water | GREAT DALBY - MAIN STREET (SSO) | River Wreake | 2 | 12 h 30m | 0.5 |
| Severn Trent Water | PLUNGAR - GRANBY LANE - PELLS FARM (SSO) | Grantham Canal | 4 | 12 h 22m | 0.5 |
| Severn Trent Water | SAXELBY - SAXELBYE LANE (SSO) | River Wreake | 3 | 12 h 16m | 0.5 |
| Severn Trent Water | MELTON MOWBRAY - SCALFORD ROAD (CSO) | River Wreake | 5 | 11 h 54m | 0.46 |
| Severn Trent Water | SOUTH CROXTON - SCHOOL LANE PS (CSO) | Queniborough Brook | 3 | 10 h 52m | 0.42 |
| Severn Trent Water | MELTON - LEICESTER BRIDGE O/L F (CSO) | River Wreake | 2 | 10 h 5m | 0.42 |
| Severn Trent Water | WARTNABY - SPRING LANE (SSO) | River Wreake | 3 | 7 h 57m | 0.29 |
| Severn Trent Water | HOBY - BROOKSBY ROAD (SSO) | River Wreake | 1 | 7 h 56m | 0.29 |
| Severn Trent Water | STONESBY - KING STREET LANE (SSO) | River Eye + Various Brooks | 2 | 6 h 45m | 0.25 |
| Severn Trent Water | STATHERN - HARBY LANE (CSO) | Stroom Dyke | 3 | 6 h 28m | 0.25 |
| Severn Trent Water | REDMILE - CHURCH CORNER (CSO) | Grimmer | 1 | 6 h 7m | 0.25 |
| Severn Trent Water | HARBY - WATSONS LANE (CSO) | Stroom Dyke | 2 | 5 h 45m | 0.21 |
| Severn Trent Water | RAGDALE STW (CSO&EO) | River Trent | 2 | 5 h 33m | 0.21 |
| Severn Trent Water | SOUTH CROXTON - SCHOOL LANE PS (CSO) | Queniborough Brook | 1 | 4 h 40m | 0.17 |
| Severn Trent Water | MELTON - LEICESTER BRIDGE O/L D (CSO) | River Wreake | 1 | 3 h 3m | 0.12 |
| Severn Trent Water | HOLWELL - MAIN STREET (SSO) | River Wreake | 2 | 2 h 38m | 0.08 |
| Severn Trent Water | REDMILE (STW) | Grimmer | 1 | 2 h 36m | 0.08 |
| Severn Trent Water | SCALFORD - THORPE SIDE (CSO) | River Eye + Various Brooks | 7 | 2 h 22m | 0.08 |
| Severn Trent Water | ASFORDBY - PUMP LANE CSO | River Wreake | 3 | 1 h 27m | 0.04 |
| Severn Trent Water | SYSTON - TURN STREET (SSO) | Barkby Brook | 1 | 1 h 18m | 0.04 |
| Severn Trent Water | MELTON - NOTTINGHAM RD/WELBY LN (CSO) | River Wreake | 2 | 0 h 52m | 0 |
| Severn Trent Water | SPROXTON - COSTON ROAD (SSO) | River Eye + Various Brooks | 2 | 0 h 39m | 0 |
| Severn Trent Water | GOADBY MARWOOD - KEMPS LANE (CSO) | River Eye + Various Brooks | 2 | 0 h 11m | 0 |
| Severn Trent Water | SCALFORD - THORPE SIDE (CSO) | River Eye + Various Brooks | 1 | 0 h 6m | 0 |
| Severn Trent Water | MELTON STW (SSTO) | River Wreake | 1 | 0 h | 0 |
| Severn Trent Water | ASHBY FOLVILLE STW (SSTO) | Gaddesby Brook | 0 | 0 h | 0 |
| Severn Trent Water | MELTON MOWBRAY - SCALFORD ROAD (CSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | BARKBY - FIELD 3234 (CSO) | Barkby Brook | 0 | 0 h | 0 |
| Severn Trent Water | ROTHERBY - MAIN STREET (SSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | HARBY - LANGER LANE (SSO) | River And Canal | 0 | 0 h | 0 |
| Severn Trent Water | MELTON - LEICESTER BRIDGE O/L G (CSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | HOLWELL - MAIN STREET (SSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | SYSTON - CLUMBER CLOSE (CSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | MELTON - BURTON ROAD/ANKLE HILL (CSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | HARBY - LANGER LANE (SSO) | River And Canal | 0 | 0 h | 0 |
| Severn Trent Water | SPROXTON - COSTON ROAD (SSO) | River Eye + Various Brooks | 0 | 0 h | 0 |
| Severn Trent Water | KIRBY BELLARS - WASHDYKE LANE (CSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | SYSTON - CLUMBER CLOSE (CSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | MELTON - LEICESTER ROAD PS (CSO) | River Eye | 0 | 0 h | 0 |
| Severn Trent Water | RAGDALE STW (CSO&EO) | River Trent | 0 | 0 h | 0 |
| Severn Trent Water | THORPE SATCHVILLE (STW) | Gaddesby Brook | 0 | 0 h | 0 |
| Severn Trent Water | WARTNABY - SPRING LANE (SSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | MELTON - LEICESTER ROAD PS (CSO) | River Eye | 0 | 0 h | 0 |
| Severn Trent Water | WYCOMB - MAIN ROAD (CSO) | River Eye + Various Brooks | 0 | 0 h | 0 |
| Severn Trent Water | SALTBY - STONESBY LANE (SSO) | River Eye + Various Brooks | 0 | 0 h | 0 |
| Severn Trent Water | ASFORDBY PS (CSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | HOBY - BROOKSBY ROAD (SSO) | River Wreake | 0 | 0 h | 0 |
| Severn Trent Water | REDMILE - CHURCH CORNER (CSO) | Grimmer | 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