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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 Stratford-on-Avon, 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) |
|---|---|---|---|---|---|
| Severn Trent Water | WELLESBOURNE STW 3DWF (SSTO) | River Dene | 83 | 1,464 h 22m | 61 |
| Severn Trent Water | ILINGTON STW (SSTO) | Back Brook | 40 | 712 h 18m | 29.67 |
| Severn Trent Water | ILINGTON STW (SSTO) | Back Brook | 29 | 465 h 1m | 19.38 |
| Severn Trent Water | CHERINGTON STW (SSTO) | River Stour | 31 | 366 h 45m | 15.25 |
| Severn Trent Water | BEARLEY STW (SSTO) | River Alne | 16 | 350 h 31m | 14.58 |
| Severn Trent Water | TAMWORTH IN ARDEN - WOOD END LANE (CSO) | Spring Brook | 18 | 288 h 14m | 12 |
| Severn Trent Water | SHIPSTON-ON-STOUR - CAUDLE WELL PS (CSO) | River Stour | 27 | 285 h 4m | 11.88 |
| Severn Trent Water | ALCESTER STW - 3PG SRBO - SPILL WEST (SSTO) | River Arrow | 22 | 244 h 15m | 10.17 |
| Severn Trent Water | CHERINGTON STW (SSTO) | River Stour | 18 | 223 h 38m | 9.29 |
| Thames Water | Little Compton STW | Little Compton Stream | 12 | 212 h 15m | 8.83 |
| Severn Trent Water | SALFORD PRIORS - STATION ROAD (CSO) | Ban Brook | 11 | 203 h 30m | 8.46 |
| Thames Water | Little Compton STW | Little Compton Stream | 16 | 202 h | 8.42 |
| Severn Trent Water | DORSINGTON STW (CSO) | Noleham Brook | 33 | 183 h 48m | 7.62 |
| Severn Trent Water | ALCESTER STW - 3PG SRBO - SPILL WEST (SSTO) | River Arrow | 15 | 175 h 53m | 7.29 |
| Severn Trent Water | TAMWORTH IN ARDEN - WOOD END LANE (CSO) | Spring Brook | 17 | 171 h 10m | 7.12 |
| Severn Trent Water | NEWBOLD-ON-STOUR - MILL LANE (CSO) | River Stour | 23 | 164 h 40m | 6.83 |
| Severn Trent Water | STRATFORD - MILCOTE STW (SSTO) | River Avon | 16 | 160 h 4m | 6.67 |
| Severn Trent Water | REDDITCH - SPERNAL STW (SSTO) | River Arrow | 14 | 144 h 9m | 6 |
| Severn Trent Water | STRATFORD - PADDOCK LANE PS (CSO) | River Avon | 17 | 127 h 8m | 5.29 |
| Severn Trent Water | SHIPSTON-ON-STOUR - CAUDLE WELL PS (CSO) | River Stour | 10 | 115 h 31m | 4.79 |
| Severn Trent Water | WOOTTON WAWEN (STW) | River Alne | 13 | 94 h 39m | 3.92 |
| Severn Trent Water | BANBURY - ORCHARD CLOSE (CSO) | Sutton Brook | 22 | 93 h 53m | 3.88 |
| Severn Trent Water | HASELOR - WALCOTE ROAD (SSO) | River Alne | 19 | 90 h 59m | 3.75 |
| Severn Trent Water | NEWBOLD-ON-STOUR - MILL LANE (CSO) | River Stour | 11 | 81 h 30m | 3.38 |
| Severn Trent Water | SNITTERFIELD STW (SSTO) | Sherbourne Brook | 8 | 76 h 44m | 3.17 |
| Severn Trent Water | BIDFORD ON AVON - HIGH STREET (CSO) | River Avon | 4 | 74 h | 3.08 |
| Severn Trent Water | EARLSWOOD - WOOD END LANE PS (SO) | Sherbourne Brook | 5 | 72 h 51m | 3 |
| Severn Trent Water | BIDFORD-ON-AVON (STW) | River Arrow | 11 | 72 h 30m | 3 |
| Severn Trent Water | REDDITCH - SPERNAL STW (SSTO) | River Arrow | 7 | 68 h 33m | 2.83 |
| Severn Trent Water | TANWORTH-IN-ARDEN - DANZEY GRN LA (CSO) | River Alne | 18 | 67 h 18m | 2.79 |
| Severn Trent Water | TANWORTH-IN-ARDEN - DANZEY GRN LA (CSO) | River Alne | 31 | 65 h 21m | 2.71 |
| Severn Trent Water | WELFORD-ON-AVON - BOAT LANE (SSO) | River Avon | 19 | 58 h 39m | 2.42 |
| Severn Trent Water | MARCLIFF - MERRYFIELDS FARM (CSO) | River Avon | 3 | 58 h 27m | 2.42 |
| Severn Trent Water | WOOTTON WAWEN (STW) | River Alne | 8 | 57 h 17m | 2.38 |
| Severn Trent Water | ALCESTER - FAIRWATER CRESCENT PS (CSO) | River Alne | 6 | 54 h 20m | 2.25 |
| Severn Trent Water | CLIFFORD CHAMBERS - THE CLOSE (CSO) | River Stour | 5 | 52 h 39m | 2.17 |
| Severn Trent Water | LONG MARSTON TPS (CSO) | Gran Brook | 5 | 46 h 49m | 1.92 |
| Severn Trent Water | MILL LANE (CSO) | River Stour | 4 | 40 h | 1.67 |
| Severn Trent Water | WELFORD-ON-AVON - BOAT LANE (SSO) | River Avon | 5 | 38 h 15m | 1.58 |
| Severn Trent Water | BIDFORD-ON-AVON - THE PLECK (CSO) | River Avon | 7 | 37 h 11m | 1.54 |
| Severn Trent Water | BEARLEY STW (SSTO) | River Alne | 17 | 36 h 4m | 1.5 |
| Severn Trent Water | CLIFFORD CHAMBERS - THE CLOSE (CSO) | River Stour | 4 | 35 h | 1.46 |
| Severn Trent Water | BIDFORD-ON-AVON - THE PLECK (CSO) | River Avon | 7 | 34 h 51m | 1.42 |
| Severn Trent Water | STRATFORD - MILCOTE STW (SSTO) | River Avon | 9 | 34 h 23m | 1.42 |
| Severn Trent Water | HASELOR - WALCOTE ROAD (SSO) | River Alne | 3 | 31 h 16m | 1.29 |
| Severn Trent Water | ALCESTER STW - 6PG SRBO - SPILL EAST (SSTO) | River Arrow | 2 | 31 h 8m | 1.29 |
| Severn Trent Water | BANBURY - ORCHARD CLOSE (CSO) | Sutton Brook | 8 | 30 h 23m | 1.25 |
| Severn Trent Water | WELFORD-ON-AVON - BARTON ROAD (CSO) | River Avon | 7 | 29 h 44m | 1.21 |
| Severn Trent Water | STRATFORD - ALCESTER RD/CHURCH LA (CSO) | Shottery Brook | 15 | 29 h 9m | 1.21 |
| Severn Trent Water | LOWER BINTON - EVESHAM ROAD 177 (CSO) | River Avon | 6 | 28 h 42m | 1.17 |
| Severn Trent Water | LOWER BINTON - EVESHAM ROAD 177 (CSO) | River Avon | 4 | 26 h 44m | 1.08 |
| Severn Trent Water | SNITTERFIELD - LODGE FARM DRIVE (CSO) | Bell Brook | 10 | 25 h 56m | 1.04 |
| Severn Trent Water | SHOTTERY - COTTAGE LANE (SO) | Shottery Brook | 11 | 25 h 50m | 1.04 |
| Severn Trent Water | KINGS COUGHTON - BIRMINGHAM ROAD (CSO) | River Arrow | 3 | 25 h 11m | 1.04 |
| Severn Trent Water | BIDFORD-ON-AVON (STW) | River Arrow | 3 | 24 h 38m | 1 |
| Severn Trent Water | STRATFORD - SHIPSTON ROAD (CSO) | Rush Brook | 6 | 24 h 11m | 1 |
| Severn Trent Water | ALCESTER - FAIRWATER CRESCENT PS (CSO) | River Alne | 2 | 22 h 21m | 0.92 |
| Severn Trent Water | BRIDGEWAY (CSO) | River Avon | 7 | 21 h 28m | 0.88 |
| Severn Trent Water | LONG MARSTON TPS (CSO) | Gran Brook | 2 | 21 h 17m | 0.88 |
| Severn Trent Water | MILL LANE (CSO) | River Stour | 5 | 19 h 15m | 0.79 |
| Severn Trent Water | STRATFORD - PADDOCK LANE PS (CSO) | River Avon | 4 | 15 h 27m | 0.62 |
| Severn Trent Water | SNITTERFIELD STW (SSTO) | Sherbourne Brook | 14 | 15 h 18m | 0.62 |
| Severn Trent Water | KINGS COUGHTON - BIRMINGHAM ROAD (CSO) | River Arrow | 2 | 12 h 41m | 0.5 |
| Severn Trent Water | WELLESBOURNE STW 3DWF (SSTO) | River Dene | 2 | 10 h 52m | 0.42 |
| Severn Trent Water | SNITTERFIELD - LODGE FARM DRIVE (CSO) | Bell Brook | 2 | 9 h 38m | 0.38 |
| Severn Trent Water | WELFORD-ON-AVON - BARTON ROAD (CSO) | River Avon | 1 | 8 h 44m | 0.33 |
| Severn Trent Water | STRATFORD - BANBURY RD/DALE AV (CSO) | River Avon | 5 | 7 h 42m | 0.29 |
| Severn Trent Water | STRATFORD - ALCESTER RD/CHURCH LA (CSO) | Shottery Brook | 2 | 7 h 41m | 0.29 |
| Severn Trent Water | SHOTTERY - COTTAGE LANE (SO) | Shottery Brook | 1 | 5 h 51m | 0.21 |
| Severn Trent Water | STRATFORD - TIDDINGTON ROAD (CSO) | River Avon | 3 | 5 h 27m | 0.21 |
| Severn Trent Water | ETTINGTON WORKS (STW) | River Dene | 10 | 4 h 1m | 0.17 |
| Severn Trent Water | BIDFORD-ON-AVON - SALFORD ROAD (CSO) | River Avon | 3 | 3 h 43m | 0.12 |
| Severn Trent Water | ETTINGTON WORKS (STW) | River Dene | 5 | 3 h 39m | 0.12 |
| Severn Trent Water | WILMCOTE - CHURCH ROAD (CSO) | Shottery Brook | 2 | 3 h 7m | 0.12 |
| Severn Trent Water | STRATFORD - BANBURY RD/SWANS NEST (CSO) | River Avon | 1 | 2 h 6m | 0.08 |
| Severn Trent Water | BRIDGEWAY (CSO) | River Avon | 1 | 1 h 38m | 0.04 |
| Severn Trent Water | STUDLEY - CASTLE ROAD (CSO) | River Arrow | 3 | 0 h 49m | 0 |
| Severn Trent Water | STRATFORD - BANBURY RD/DALE AV (CSO) | River Avon | 1 | 0 h 33m | 0 |
| Severn Trent Water | BIDFORD-ON-AVON - SALFORD ROAD (CSO) | River Avon | 1 | 0 h 26m | 0 |
| Severn Trent Water | CLAVERDON - CHURCH ROAD (SSO) | Claverdon Brook | 1 | 0 h 13m | 0 |
| Severn Trent Water | SALFORD PRIORS - STATION ROAD (CSO) | Ban Brook | 0 | 0 h | 0 |
| Severn Trent Water | STUDLEY - CASTLE ROAD (CSO) | River Arrow | 0 | 0 h | 0 |
| Severn Trent Water | STRATFORD - TIDDINGTON ROAD (CSO) | River Avon | 0 | 0 h | 0 |
| Severn Trent Water | STRATFORD - SHIPSTON ROAD (CSO) | Rush Brook | 0 | 0 h | 0 |
| Severn Trent Water | CLAVERDON - CHURCH ROAD (SSO) | Claverdon Brook | 0 | 0 h | 0 |
| Severn Trent Water | BIDFORD ON AVON - HIGH STREET (CSO) | River Avon | 0 | 0 h | 0 |
| Severn Trent Water | DORSINGTON STW (CSO) | Noleham Brook | 0 | 0 h | 0 |
| Severn Trent Water | MARCLIFF - MERRYFIELDS FARM (CSO) | River Avon | 0 | 0 h | 0 |
| Severn Trent Water | TIDDINGTON - MAIN STREET (CSO) | River Avon | 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