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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 North Cotswolds, 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) |
|---|---|---|---|---|---|
| Thames Water | Primrose Court (Moreton-in-Marsh) SPS | Evenlode | 62 | 1,068 h 15m | 44.5 |
| Thames Water | Andoversford STW | River Colne | 29 | 595 h 15m | 24.79 |
| Thames Water | Primrose Court (Moreton-in-Marsh) SPS | Evenlode | 31 | 593 h 15m | 24.71 |
| Thames Water | Andoversford STW | River Colne | 33 | 543 h | 22.62 |
| Thames Water | Bledington STW | Bledington Brook | 35 | 535 h | 22.29 |
| Thames Water | Bourton-on-the-water | Windrush | 25 | 471 h 15m | 19.62 |
| Thames Water | Bledington STW | Bledington Brook | 21 | 412 h 45m | 17.17 |
| Thames Water | Bourton-on-the-water | Windrush | 25 | 334 h 15m | 13.92 |
| Severn Trent Water | BLOCKLEY (STW) | Blockley Brook | 18 | 303 h 25m | 12.62 |
| Thames Water | Broadwell STW | Evenlode | 12 | 189 h 30m | 7.88 |
| Thames Water | Broadwell STW | Evenlode | 13 | 178 h 15m | 7.42 |
| Severn Trent Water | BLOCKLEY (STW) | Blockley Brook | 13 | 176 h 20m | 7.33 |
| Severn Trent Water | QUEDGELEY - (CRITICAL) (CSO) | Dimore Brook | 24 | 162 h 56m | 6.75 |
| Severn Trent Water | BADGEWORTH - BADGEWORTH ROAD (SSO) | Ham Brook | 12 | 142 h 36m | 5.92 |
| Severn Trent Water | BADGEWORTH - BADGEWORTH ROAD (SSO) | Ham Brook | 11 | 103 h 12m | 4.29 |
| Severn Trent Water | CHIPPING CAMDEN STW (SSTO) | Cam Brook | 20 | 84 h 1m | 3.5 |
| Severn Trent Water | SHURDINGTON - STORM TANK (CSO) | Ham Brook | 9 | 77 h 59m | 3.21 |
| Severn Trent Water | QUEDGELEY - (CRITICAL) (CSO) | Dimore Brook | 7 | 52 h 26m | 2.17 |
| Severn Trent Water | CHIPPING CAMDEN STW (SSTO) | Cam Brook | 8 | 42 h 32m | 1.75 |
| Thames Water | Moreton-in-marsh | River Evenlode | 6 | 34 h 15m | 1.42 |
| Severn Trent Water | MICKLETON - COTSWOLD EDGE (CSO) | Noleham Brook | 4 | 32 h 33m | 1.33 |
| Severn Trent Water | MINCHINHAMPTON - RO SMALL HOUSE (CSO) | Gatcombe Water | 2 | 22 h 58m | 0.92 |
| Thames Water | Moreton-in-marsh | River Evenlode | 3 | 20 h 30m | 0.83 |
| Severn Trent Water | STAVERTON BRIDGE (CSO) | Hatherley Brook | 4 | 19 h 18m | 0.79 |
| Thames Water | Northleach STW | River Leach | 3 | 16 h | 0.67 |
| Severn Trent Water | BLOCKLEY รขโฌโ FIELD OFF DRAYCOTT ROAD (CSO) | Blockley Brook | 2 | 14 h 31m | 0.58 |
| Thames Water | Northleach STW | River Leach | 3 | 14 h 30m | 0.58 |
| Severn Trent Water | SAINTBURY - THE CROSS (CSO) | Broadway Brook | 2 | 8 h 6m | 0.33 |
| Severn Trent Water | MICKLETON - COTSWOLD EDGE (CSO) | Noleham Brook | 3 | 7 h 49m | 0.29 |
| Thames Water | Near Sezincote Lodge | N/A | 5 | 6 h 50m | 0.25 |
| Severn Trent Water | STAVERTON BRIDGE (CSO) | Hatherley Brook | 2 | 6 h 16m | 0.25 |
| Severn Trent Water | BLOCKLEY รขโฌโ FIELD OFF DRAYCOTT ROAD (CSO) | Blockley Brook | 1 | 3 h 8m | 0.12 |
| Severn Trent Water | WITCOMBE - PILLCROFT CLOSE (CSO) | Horsbere Brook | 1 | 1 h 21m | 0.04 |
| Severn Trent Water | MINCHINHAMPTON - RO SMALL HOUSE (CSO) | Gatcombe Water | 1 | 0 h 10m | 0 |
| Severn Trent Water | PAINSWICK - STEPPING STONE LN (CSO) | Painswick Stream | 2 | 0 h 4m | 0 |
| Severn Trent Water | WITCOMBE - PILLCROFT CLOSE (CSO) | Horsbere Brook | 0 | 0 h | 0 |
| Severn Trent Water | SHURDINGTON - STORM TANK (CSO) | Ham Brook | 0 | 0 h | 0 |
| Thames Water | Near Sezincote Lodge | N/A | 0 | 0 h | 0 |
| Severn Trent Water | PAINSWICK - STEPPING STONE LN (CSO) | Painswick Stream | 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